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Irgolič M, Čolnik M, Kotnik P, Škerget M. Degradation of Waste Tetra Pak Packaging with Hydrothermal Treatment in Sub-/Supercritical Water. Polymers (Basel) 2024; 16:1879. [PMID: 39000734 PMCID: PMC11243872 DOI: 10.3390/polym16131879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/27/2024] [Accepted: 06/29/2024] [Indexed: 07/17/2024] Open
Abstract
Tetra pak packaging is one of the most frequently used types of packaging in the food industry. The recycling of the tetra pak packaging waste presents a difficult task because of its multi-layered, multi-component structure. In this study, the degradation of tetra pak packaging in subcritical (SubCW) and supercritical (SCW) water was investigated. The experiments were carried out in one (SCW) or two stages (SubCW and SCW), whereby the influence of the reaction temperature and time on the yield and composition of the products obtained was investigated. The maximum oil phase yield achieved in a one-stage and a two-stage degradation process was 60.7% and 65.5%, respectively. The oil and gas phases were composed of different types of hydrocarbons. Higher temperature and longer time led to higher amounts of saturated aliphatic hydrocarbons in both the oil and gas phases. The aqueous phase contained sugars (glucose, fructose) and sugar derivatives (levulinic acid, glyceraldehyde, furfurals). Based on these results, the degradation pathway of waste tetra pak packaging in SubCW and SCW was proposed. The results of the study show that the degradation of waste tetra pak packaging with SubCW and SCW is a promising recycling process.
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Affiliation(s)
- Mihael Irgolič
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
| | - Maja Čolnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
| | - Petra Kotnik
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
- Faculty of Medicine, University of Maribor, Taborska ulica 8, SI-2000 Maribor, Slovenia
| | - Mojca Škerget
- Faculty of Chemistry and Chemical Engineering, University of Maribor, Smetanova ulica 17, SI-2000 Maribor, Slovenia
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2
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Portilla-Amaguaña A, Barraza-Burgos J, Guerrero-Perez J, Borugadda VB, Dalai AK. Hydrothermal Carbonization of Green Harvesting Residues (GHRs) from Sugar Cane: Effect of Temperature and Water/GHR Ratio on Mass and Energy Yield. ACS OMEGA 2024; 9:26325-26335. [PMID: 38911783 PMCID: PMC11190912 DOI: 10.1021/acsomega.4c01875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/26/2024] [Accepted: 05/29/2024] [Indexed: 06/25/2024]
Abstract
The Valle del Cauca region in Colombia is a significant producer of sugar cane, resulting in large quantities of agricultural residues (green harvesting residues (GHRs)). To ensure sustainable management of these residues, it is crucial to implement proper treatment and disposal technologies while also reusing waste to produce biogas, bioelectricity, or biofuels. The biomass hydrothermal carbonization process offers a means to convert these residues into useful products that serve as fuels or valuable energy materials. This thermal treatment involves the use of water as a solvent and reagent within the biomass's internal structure. In this study, sugar cane cutting residues were collected with relatively high moisture content of 8.5% wt. These residues were subjected to carbonization temperatures ranging from 200 to 300 °C, along with water/GHR ratios between 5/1 and 10/1. The properties of the resulting hydrocarbons were analyzed by using proximate and ultimate analysis. The objective was to produce hydrochar samples with the highest higher heating value (HHV) and energy density compared with the GHRs. The HHV value of the hydrochar showed a significant increase of 69.6% compared with that of the GHRs, reaching 43.5 MJ/kg. Besides, process parameters were optimized for mass yields, energy yields, and ash content. This exploration led us to investigate a new temperature range between 280 and 320 °C, allowing us to establish an optimal value for the hydrochar's properties.
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Affiliation(s)
- Alexander Portilla-Amaguaña
- Facultad
de Ingeniería, Ciudad Universitaria Meléndez, Universidad del Valle, Calle 13 # 100-00, Cali 25360, Colombia
| | - Juan Barraza-Burgos
- Facultad
de Ingeniería, Ciudad Universitaria Meléndez, Universidad del Valle, Calle 13 # 100-00, Cali 25360, Colombia
| | - Juan Guerrero-Perez
- Facultad
de Ingeniería, Ciudad Universitaria Meléndez, Universidad del Valle, Calle 13 # 100-00, Cali 25360, Colombia
| | - Venu Babu Borugadda
- College
of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A2, Canada
| | - Ajay K. Dalai
- College
of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A2, Canada
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3
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Cavali M, Benbelkacem H, Kim B, Bayard R, Libardi Junior N, Gonzaga Domingos D, Woiciechowski AL, Castilhos Junior ABD. Co-hydrothermal carbonization of pine residual sawdust and non-dewatered sewage sludge - effect of reaction conditions on hydrochar characteristics. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 340:117994. [PMID: 37119630 DOI: 10.1016/j.jenvman.2023.117994] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/01/2023] [Accepted: 04/18/2023] [Indexed: 05/12/2023]
Abstract
Waste valorization is mandatory to develop and consolidate a circular bioeconomy. It is necessary to search for appropriate processes to add value to different wastes by utilizing them as feedstocks to provide energy, chemicals, and materials. For instance, hydrothermal carbonization (HTC) is an alternative thermochemical process that has been suggested for waste valorization aiming at hydrochar production. Thus, this study proposed the Co-HTC of pine residual sawdust (PRS) with non-dewatered sewage sludge (SS) - two wastes largely produced in sawmills and wastewater treatment plants, respectively - without adding extra water. The influence of temperature (180, 215, and 250 °C), reaction time (1, 2, and 3 h), and PRS/SS mass ratio (1/30, 1/20, and 1/10) on the yield and characteristics of the hydrochar were evaluated. The hydrochars obtained at 250 °C had the best coalification degree, showing the highest fuel ratio, high heating value (HHV), surface area, and N, P, and K retention, although presenting the lowest yields. Conversely, hydrochar functional groups were generally reduced by increasing Co-HTC temperatures. Regarding the Co-HTC effluent, it presented acidic pH (3.66-4.39) and high COD values (6.2-17.3 g·L-1). In general, this new approach could be a promising alternative to conventional HTC, in which a high amount of extra water is required. Besides, the Co-HTC process can be an option for managing lignocellulosic wastes and sewage sludges while producing hydrochar. This carbonaceous material has the potential for several applications, and its production is a step towards a circular bioeconomy.
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Affiliation(s)
- Matheus Cavali
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, 88040-970, Santa Catarina, Brazil.
| | | | - Boram Kim
- Univ Lyon, INSA Lyon, DEEP, EA 7429, 69621, Villeurbanne, France
| | - Rémy Bayard
- Univ Lyon, INSA Lyon, DEEP, EA 7429, 69621, Villeurbanne, France
| | - Nelson Libardi Junior
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, 88040-970, Santa Catarina, Brazil
| | - Dayane Gonzaga Domingos
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, 88040-970, Santa Catarina, Brazil
| | - Adenise Lorenci Woiciechowski
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, Curitiba, 81531-908, Paraná, Brazil
| | - Armando Borges de Castilhos Junior
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, 88040-970, Santa Catarina, Brazil
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El Ouadrhiri F, Abdu Musad Saleh E, Husain K, Adachi A, Hmamou A, Hassan I, Mostafa Moharam M, Lahkimi A. Acid assisted-hydrothermal carbonization of solid waste from essential oils industry: optimization using I-optimal experimental design and removal dye application. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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5
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Cavali M, Libardi Junior N, de Sena JD, Woiciechowski AL, Soccol CR, Belli Filho P, Bayard R, Benbelkacem H, de Castilhos Junior AB. A review on hydrothermal carbonization of potential biomass wastes, characterization and environmental applications of hydrochar, and biorefinery perspectives of the process. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159627. [PMID: 36280070 DOI: 10.1016/j.scitotenv.2022.159627] [Citation(s) in RCA: 35] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 06/16/2023]
Abstract
It is imperative to search for appropriate processes to convert wastes into energy, chemicals, and materials to establish a circular bio-economy toward sustainable development. Concerning waste biomass valorization, hydrothermal carbonization (HTC) is a promising route given its advantages over other thermochemical processes. From that perspective, this article reviewed the HTC of potential biomass wastes, the characterization and environmental utilization of hydrochar, and the biorefinery potential of this process. Crop and forestry residues and sewage sludge are two categories of biomass wastes (lignocellulosic and non-lignocellulosic, respectively) readily available for HTC or even co-hydrothermal carbonization (Co-HTC). The temperature, reaction time, and solid-to-liquid ratio utilized in HTC/Co-HTC of those biomass wastes were reported to range from 140 to 370 °C, 0.05 to 48 h, and 1/47 to 1/1, respectively, providing hydrochar yields of up to 94 % according to the process conditions. Hydrochar characterization by different techniques to determine its physicochemical properties is crucial to defining the best applications for this material. In the environmental field, hydrochar might be suitable for removing pollutants from aqueous systems, ameliorating soils, adsorbing atmospheric pollutants, working as an energy carrier, and performing carbon sequestration. But this material could also be employed in other areas (e.g., catalysis). Regarding the effluent from HTC/Co-HTC, this byproduct has the potential for serving as feedstock in other processes, such as anaerobic digestion and microalgae cultivation. These opportunities have aroused the industry interest in HTC since 2010, and the number of industrial-scale HTC plants and patent document applications has increased. The hydrochar patents are concentrated in China (77.6 %), the United States (10.6 %), the Republic of Korea (3.5 %), and Germany (3.5 %). Therefore, considering the possibilities of converting their product (hydrochar) and byproduct (effluent) into energy, chemicals, and materials, HTC or Co-HTC could work as the first step of a biorefinery. And this approach would completely agree with circular bioeconomy principles.
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Affiliation(s)
- Matheus Cavali
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil.
| | - Nelson Libardi Junior
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Julia Dutra de Sena
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Adenise Lorenci Woiciechowski
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, 81531-908 Curitiba, Paraná, Brazil
| | - Carlos Ricardo Soccol
- Department of Bioprocess Engineering and Biotechnology, Federal University of Paraná, 81531-908 Curitiba, Paraná, Brazil
| | - Paulo Belli Filho
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
| | - Rémy Bayard
- DEEP (Déchets Eaux Environnement Pollutions) Laboratory, National Institute of Applied Sciences of Lyon, 69100 Villeurbanne, France
| | - Hassen Benbelkacem
- DEEP (Déchets Eaux Environnement Pollutions) Laboratory, National Institute of Applied Sciences of Lyon, 69100 Villeurbanne, France
| | - Armando Borges de Castilhos Junior
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, 88040-970 Florianópolis, Santa Catarina, Brazil
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6
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Rizzioli F, Bertasini D, Bolzonella D, Frison N, Battista F. A critical review on the techno-economic feasibility of nutrients recovery from anaerobic digestate in the agricultural sector. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Agostini I, Ciuffi B, Gallorini R, Rizzo AM, Chiaramonti D, Rosi L. Recovery of Terephthalic Acid from Densified Post-consumer Plastic Mix by HTL Process. Molecules 2022; 27:molecules27207112. [PMID: 36296705 PMCID: PMC9609039 DOI: 10.3390/molecules27207112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/13/2022] [Accepted: 10/19/2022] [Indexed: 11/07/2022] Open
Abstract
In this study, we investigate the hydrothermal liquefaction (HTL) of PET separated from a densified postconsumer plastic mix, with the aim of recovering its monomer. This second raw material is made up of 90% polyolefin, while the remaining 10% is made up of PET, traces of metals, paper, and glass. After preliminary separation by density in water, two batch experiments were performed on the sunken fraction (composed mainly of PET) in a stainless steel autoclave at 345 °C for 30 and 20 min. Both trials resulted in similar yields of the three phases. In particular, the solid yield is around 76% by weight. After a purification step, this phase was analyzed by UV-Vis, 1H-NMR, and FTIR spectroscopy and resulted to be constituted by terephthalic acid (TPA), a product of considerable industrial interest. The study proved that the hydrothermal liquefaction process coupled with density separation in water is effective for obtaining TPA from a densified postconsumer plastic mix, which can be used for new PET synthesis.
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Affiliation(s)
- Ilaria Agostini
- Renewable Energy Consortium for R&D (RE-CORD) Viale J. F. Kennedy, 182, 50038 Scarperia e San Piero, Italy
| | - Benedetta Ciuffi
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia, 3-13, 50019 Sesto Fiorentino, Italy
| | - Riccardo Gallorini
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia, 3-13, 50019 Sesto Fiorentino, Italy
| | - Andrea Maria Rizzo
- Renewable Energy Consortium for R&D (RE-CORD) Viale J. F. Kennedy, 182, 50038 Scarperia e San Piero, Italy
| | - David Chiaramonti
- Renewable Energy Consortium for R&D (RE-CORD) Viale J. F. Kennedy, 182, 50038 Scarperia e San Piero, Italy
- “Galileo Ferraris” Energy Department, Polytechnic of Turin, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
| | - Luca Rosi
- Renewable Energy Consortium for R&D (RE-CORD) Viale J. F. Kennedy, 182, 50038 Scarperia e San Piero, Italy
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia, 3-13, 50019 Sesto Fiorentino, Italy
- Correspondence: ; Tel.: +055-4573458
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8
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Maillard and Hydrolytic Reactions in Subcritical Water Extraction of Bioactive Compounds from Licorice. Molecules 2022; 27:molecules27206851. [PMID: 36296445 PMCID: PMC9607042 DOI: 10.3390/molecules27206851] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/06/2022] [Accepted: 10/08/2022] [Indexed: 11/24/2022] Open
Abstract
Nowadays, subcritical water extraction (SWE) techniques are extensively investigated worldwide, while the thermal reactions that inevitably occur under subcritical water conditions are rarely studied. In order to investigate the behaviors of the different reactions during SWE of bioactive compounds from licorice, the Maillard reaction process was accessed via their products and the hydrolytic reaction was analyzed according to the kinetic parameters. In addition, the contents of total phenolics and flavonoids in the extracts obtained at the different temperatures were determined and total antioxidant capacities were evaluated by HPLC-ABTS+. The results showed that flavonoids and phenolics from licorice as well as new compounds generated via the Maillard reaction contributed to the antioxidant activity of the extracts. The fluorescence, color and absorbance of the extracts showed that the degree of the Maillard reaction increased with the rise of the extraction temperature. The kinetics of extraction for glycyrrhizic acid showed that it was firstly extracted by diffusion, and then was hydrolyzed into glycyrrhetinic acid 3-O-mono-β-D-glucuronide and glycyrrhetinic acid following a first-order mechanism. These findings could provide deep insights into the SWE process and a new method for producing glycyrrhetinic acid 3-O-mono-β-D-glucuronide and glycyrrhetinic acid.
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9
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Zhang X, Qin Q, Sun X, Wang W. Hydrothermal treatment: An efficient food waste disposal technology. Front Nutr 2022; 9:986705. [PMID: 36172524 PMCID: PMC9512071 DOI: 10.3389/fnut.2022.986705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022] Open
Abstract
The quantities of food waste (FW) are increasing yearly. Proper disposal of FW is essential for reusing value-added products, environmental protection, and human health. Based on the typical characteristics of high moisture content and high organic content of FW, hydrothermal treatment (HTT), as a novel thermochemical treatment technology, plays unique effects in the disposal and utilization of FW. The HTT of FW has attracted more and more attention in recent years, however, there are few conclusive reviews about the progress of the HTT of FW. HTT is an excellent approach to converting energy-rich materials into energy-dense fuels and valuable chemicals. This process can handle biomass with relatively high moisture content and allows efficient heat integration. This mini-review presents the current knowledge of recent advances in HTT of FW. The effects of HTT temperature and duration on organic nutritional compositions (including carbohydrates, starch, lipids, protein, cellulose, hemicellulose, lignin, etc.) and physicochemical properties (including pH, elemental composition, functional groups, fuel properties, etc.) and structural properties of FW are evaluated. The compositions of FW can degrade during HTT so that the physical and chemical properties of FW can be changed. The application and economic analyses of HTT in FW are summarized. Finally, the analyses of challenges and future perspectives on HTT of FW have shown that industrial reactors should be built effectively, and techno-economic analysis, overall energy balance, and life cycle assessment of the HTT process are necessary. The mini-review offers new approaches and perspectives for the efficient reuse of food waste.
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Affiliation(s)
- Xinyan Zhang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong University, Jinan, China
- *Correspondence: Xinyan Zhang
| | - Qingyu Qin
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing, China
| | - Xun Sun
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan, China
- Xun Sun
| | - Wenlong Wang
- National Engineering Laboratory for Reducing Emissions from Coal Combustion, Shandong Key Laboratory of Energy Carbon Reduction and Resource Utilization, School of Energy and Power Engineering, Engineering Research Center of Environmental Thermal Technology of Ministry of Education, Shandong University, Jinan, China
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Darzi R, Dubowski Y, Posmanik R. Hydrothermal processing of polyethylene-terephthalate and nylon-6 mixture as a plastic waste upcycling treatment: A comprehensive multi-phase analysis. WASTE MANAGEMENT (NEW YORK, N.Y.) 2022; 143:223-231. [PMID: 35279014 DOI: 10.1016/j.wasman.2022.03.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 02/07/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Accumulation of plastic waste is harming eco-systems and it is time to move towards a circular plastic economy. Sustainable production and recycling processes for plastics are challenged mostly by the lack of renewable building blocks. This study investigates hydrothermal processing (HTP) as a platform for depolymerization of two commonly used plastic polymers. Subcritical water (300 °C; 10 MPa) was tested as a solvent to treat polyethylene terephthalate (PET) and nylon-6 individually and in a mixture for a short reaction time of 90 min. Monomer recovery, gaseous emissions, and the effect of polymer mixture were evaluated by comprehensive analyses of all reaction products. Terephthalic acid (TPA), one of two monomers of PET was recovered as a solid product with a mass yield of 75%. ε-caprolactam (CPL), the single monomer of nylon-6 was recovered as a liquid product with a mass yield of 92.5%. Following PET + nylon-6 co-processing, TPA recovery decreased by 20%, whereas CPL recovery was not affected. Since TPA and CPL were recovered in different phases, an easy separation can likely be created for co-processing of PET and nylon-6. While most HTP studies neglect analysis of the gas phase, acetaldehyde and cyclopentene emissions were detected during HTP of PET and nylon-6, respectively. As shown here, gaseous emissions, which may be toxic, should be addressed in future developments of HTP for plastics. The results presented here can contribute to developing HTP processes for plastic recycling, that will be part of a circular plastic economy and a more sustainable future.
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Affiliation(s)
- Ran Darzi
- Faculty of Civil and Environmental Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel; Institute of Soil, Water and Environmental Science, Agricultural Research Organization (ARO) - Volcani Institute, Newe Ya'ar Research Center, Ramat Yishai 30095, Israel
| | - Yael Dubowski
- Faculty of Civil and Environmental Engineering, Technion, Israel Institute of Technology, Haifa 32000, Israel
| | - Roy Posmanik
- Institute of Soil, Water and Environmental Science, Agricultural Research Organization (ARO) - Volcani Institute, Newe Ya'ar Research Center, Ramat Yishai 30095, Israel.
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11
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Aqueous phase reforming process for the valorization of wastewater streams: Application to different industrial scenarios. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.06.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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Pocha CKR, Chia SR, Chia WY, Koyande AK, Nomanbhay S, Chew KW. Utilization of agricultural lignocellulosic wastes for biofuels and green diesel production. CHEMOSPHERE 2022; 290:133246. [PMID: 34906526 DOI: 10.1016/j.chemosphere.2021.133246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/21/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
The ever-growing human population has resulted in the expansion of agricultural activity; evident by the deforestation of rainfoamrests as a means of acquiring fertile land for crops. The crops and fruits produced by such means should be utilized completely; however, there are still losses and under-exploitation of these produces which has resulted in wastes being mounted in landfills. These underutilized agricultural wastes including vegetables and fruits can serve as a potential source for biofuels and green diesel. This paper discusses the main routes (e.g., biological and thermochemical) for producing biofuels such as bioethanol, biodiesel, biogas, bio-oil and green diesel from underutilized crops by emphasizing recent technological innovations for improving biofuels and green diesel yields. The future prospects of a successful production of biofuels and green diesel by this source are also explained. Underutilized lignocelluloses including fruits and vegetables serve as a prospective biofuel and green diesel generation source for the future prosperity of the biofuel industry.
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Affiliation(s)
- Chaitanya Kumar Reddy Pocha
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia
| | - Shir Reen Chia
- Institute of Sustainable Energy, Universiti Tenaga Nasional (UNITEN), Jalan IKRAM-UNITEN, 43000, Kajang, Selangor, Malaysia
| | - Wen Yi Chia
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Apurav Krishna Koyande
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500, Semenyih, Selangor Darul Ehsan, Malaysia
| | - Saifuddin Nomanbhay
- Institute of Sustainable Energy, Universiti Tenaga Nasional (UNITEN), Jalan IKRAM-UNITEN, 43000, Kajang, Selangor, Malaysia
| | - Kit Wayne Chew
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900, Sepang, Selangor, Malaysia; College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, Fujian, China.
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13
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Suárez L, Díaz TE, Benavente-Ferraces I, Plaza C, Almeida M, Centeno TA. Hydrothermal treatment as a complementary tool to control the invasive Pampas grass (Cortaderia selloana). THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 807:150796. [PMID: 34624279 DOI: 10.1016/j.scitotenv.2021.150796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/21/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
The rapid spread of invasive Pampas grass (PG) is having not only ecosystems impact, but also significant economic and social effects. The tonnes of bulky waste from the plant disposal require proper treatment to avoid seed dispersal, greenhouse gas emissions and landscape damage. In the pursuit of zero-waste management, hydrothermal treatment (HT) appears as a challenging alternative. The possibility of mobile HT systems offers an alternative to accomplish on-site both the PG waste management and the application of the resulting by-products within a circular framework. As a first step, this research shows that, without a prior drying step, the hydrothermal treatment at 100-230 °C under autogenous water vapor pressure for only 30 min allows safe seeds inertization, while a stable carbon-enriched solid and an aqueous stream are generated. Prolonging the process for 2 h has no profitable effects. As the reaction temperature increases, the PG residue is converted into a material with 49-58 wt% of carbon, 41-32 wt% of oxygen and 3-4 wt% of ash. The pH (~6.3), low electrical conductivity (1.21-0.86 dS/m), high carbon content, open porosity (5-8 m2/g) and improved performance in seed germination and in the early growth test suggest the potential of HT-solids derived at 100-120 °C as amendment to sequester carbon in the soil and improve its physico-biological properties. The phytotoxicity detected in the peat/lignite-like solids obtained at 200-230 °C limits its application in soil, but calorific values of 22-24 MJ/kg indicate their suitability as CO2-neutral fuel. The agrochemical analysis of the liquid by-products indicates poor value on their own, but their use supplemented with compost may be an option.
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Affiliation(s)
- Loreto Suárez
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe, 26, 33011 Oviedo, Spain
| | - Tomás Emilio Díaz
- Departamento de Biología de Organismos y Sistemas, Universidad de Oviedo, Catedrático José María Serrano, 10, 33006 Oviedo, Spain
| | | | - César Plaza
- Instituto de Ciencias Agrarias, ICA-CSIC. Serrano 115 bis, 28006 Madrid, Spain
| | - Mónica Almeida
- Instituto Politécnico de Coimbra, Escola Superior Agrária de Coimbra, Centre for Functional Ecology, Bencanta, 3045-601 Coimbra, Portugal
| | - Teresa A Centeno
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe, 26, 33011 Oviedo, Spain.
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14
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Wang Y, Yan X, Su M, Li J, Man T, Wang S, Li C, Gao S, Zhang R, Zhang M, Wang P, Jia X, Ren L. Isolation of potassium solubilizing bacteria in soil and preparation of liquid bacteria fertilizer from food wastewater. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Chen WH, Nižetić S, Sirohi R, Huang Z, Luque R, M Papadopoulos A, Sakthivel R, Phuong Nguyen X, Tuan Hoang A. Liquid hot water as sustainable biomass pretreatment technique for bioenergy production: A review. BIORESOURCE TECHNOLOGY 2022; 344:126207. [PMID: 34715344 DOI: 10.1016/j.biortech.2021.126207] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Revised: 10/20/2021] [Accepted: 10/20/2021] [Indexed: 06/13/2023]
Abstract
In recent years, lignocellulosic biomass has emerged as one of the most versatile energy sources among the research community for the production of biofuels and value-added chemicals. However, biomass pretreatment plays an important role in reducing the recalcitrant properties of lignocellulose, leading to superior quality of target products in bioenergy production. Among existing pretreatment techniques, liquid hot water (LHW) pretreatment has several outstanding advantages compared to others including minimum formation of monomeric sugars, significant removal of hemicellulose, and positive environmental impacts; however, several constraints of LHW pretreatment should be clarified. This contribution aims to provide a comprehensive analysis of reaction mechanism, reactor characteristics, influencing factors, techno-economic aspects, challenges, and prospects for LHW-based biomass pretreatment. Generally, LHW pretreatment could be widely employed in bioenergy processing from biomass, but circular economy-based advanced pretreatment techniques should be further studied in the future to achieve maximum efficiency, and minimum cost and drawbacks.
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Affiliation(s)
- Wei-Hsin Chen
- Department of Aeronautics and Astronautics, National Cheng Kung University, Tainan 701, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung 407, Taiwan
| | - Sandro Nižetić
- University of Split, FESB, Rudjera Boskovica 32, 21000 Split, Croatia
| | - Ranjna Sirohi
- Centre for Energy and Environmental Sustainability, Lucknow-226 029, Uttar Pradesh, India; Department of Chemical and Biological Engineering, Korea University, Seoul, Republic of Korea
| | - Zuohua Huang
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Rafael Luque
- Departamento de Química Orgánica, Universidad de Cordoba, Campus de Rabanales, Edificio Marie Curie, Ctra. Nnal. IV-A, Km. 396, E-14014 Cordoba, Spain; Peoples Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Str., 117198 Moscow, Russia
| | - Agis M Papadopoulos
- Department of Mechanical Engineering, Aristotle University Thessaloniki, Greece
| | - R Sakthivel
- Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India
| | - Xuan Phuong Nguyen
- PATET Research Group, Ho Chi Minh City University of Transport, Ho Chi Minh city, Vietnam
| | - Anh Tuan Hoang
- Institute of Engineering, Ho Chi Minh city University of Technology (HUTECH), Ho Chi Minh city, Vietnam.
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16
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Seo MW, Lee SH, Nam H, Lee D, Tokmurzin D, Wang S, Park YK. Recent advances of thermochemical conversion processes for biorefinery. BIORESOURCE TECHNOLOGY 2022; 343:126109. [PMID: 34637907 DOI: 10.1016/j.biortech.2021.126109] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Lignocellulosic biomass is one of the most promising renewable resources and can replace fossil fuels via various biorefinery processes. Through this study, we addressed and analyzed recent advances in the thermochemical conversion of various lignocellulosic biomasses. We summarized the operation conditions and results related to each thermochemical conversion processes such as pyrolysis (torrefaction), hydrothermal treatment, gasification and combustion. This review indicates that using thermochemical conversion processes in biorefineries is techno-economically feasible, easy, and effective compared with biological processes. The challenges experienced in thermochemical conversion processes are also presented in this study for better understanding the future of thermochemical conversion processes for biorefinery. With the aid of artificial intelligence and machine learning, we can reduce time-consumption and experimental work for bio-oil production and syngas production processes.
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Affiliation(s)
- Myung Won Seo
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - See Hoon Lee
- Department of Mineral Resources and Energy Engineering, Jeonbuk National University, 567 Bakeje-daero, Deokjin-gu, Jeonju, Republic of Korea; Department of Environment & Energy, Jeonbuk National University 567 Baekje-daero, Deokjin-gu, Jeonju, Republic of Korea
| | - Hyungseok Nam
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Doyeon Lee
- Department of Civil and Environmental Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon, Republic of Korea
| | - Diyar Tokmurzin
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Shuang Wang
- Climate Change Research Division, Korea Institute of Energy Research (KIER), 152 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
| | - Young-Kwon Park
- School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Dongdaemun-gu, Seoul, Republic of Korea.
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17
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Kinetics Study of Hydrothermal Degradation of PET Waste into Useful Products. Processes (Basel) 2021. [DOI: 10.3390/pr10010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Kinetics of hydrothermal degradation of colorless polyethylene terephthalate (PET) waste was studied at two temperatures (300 °C and 350 °C) and reaction times from 1 to 240 min. PET waste was decomposed in subcritical water (SubCW) by hydrolysis to terephthalic acid (TPA) and ethylene glycol (EG) as the main products. This was followed by further degradation of TPA to benzoic acid by decarboxylation and degradation of EG to acetaldehyde by a dehydration reaction. Furthermore, by-products such as isophthalic acid (IPA) and 1,4-dioxane were also detected in the reaction mixture. Taking into account these most represented products, a simplified kinetic model describing the degradation of PET has been developed, considering irreversible consecutive reactions that take place as parallel in reaction mixture. The reaction rate constants (k1–k6) for the individual reactions were calculated and it was observed that all reactions follow first-order kinetics.
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18
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Goel C, Mohan S, Dinesha P. CO 2 capture by adsorption on biomass-derived activated char: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149296. [PMID: 34325142 DOI: 10.1016/j.scitotenv.2021.149296] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/13/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Carbon capture and storage has been recognized as the most promising method for CO2 control. Among the many sorbents, char derived from pyrolysis and hydrothermal carbonization (HTC) of biomass have demonstrated excellent CO2 adsorption capability. This paper reviews the different parameters to produce a higher yield of biochar and hydrochar suitable for carbon sequestration. The mechanism of physisorption and chemisorption is briefly presented. The different kinetic models, diffusion models to describe adsorption mechanism, and adsorption isotherms for CO2 uptake from biomass-derived hydrochar are reviewed. The different factors that affect the CO2 uptake are the type of activation, surface area and porosity, the ratio of activation agent to char, activation temperature, adsorption pressure and temperature, additives, and other physicochemical properties. The optimal conditions for CO2 uptake with chemical activation of KOH is a KOH/char ratio of 2-3, activation temperature of 700 °C, and an adsorption temperature below 50 °C.
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Affiliation(s)
- Chirag Goel
- Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - Sooraj Mohan
- Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India
| | - P Dinesha
- Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India.
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19
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Optimized production, Pb(II) adsorption and characterization of alkali modified hydrochar from sugarcane bagasse. Sci Rep 2021; 11:22328. [PMID: 34785737 PMCID: PMC8595365 DOI: 10.1038/s41598-021-01825-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 11/02/2021] [Indexed: 11/08/2022] Open
Abstract
Today, sugarcane bagasse (SB) is used for bioethanol and biodiesel production, energy generation, and adsorbent synthesis. The goal of this project is to determine the optimized conditions for producing adsorbent from sugarcane bagasse using hydrothermal carbonization (HTC) and KOH activation. To optimize process parameters such as reaction temperature, residence time, ZnCl2/SB mixing ratios, and water/SB mixing ratios, response surface methodology was used. The results revealed that the optimum modified adsorption occurred at 180 °C, 11.5 h, a water to biomass ratio of (5:1), and a ZnCl2 to precursor ratio of (3.5:1). The physicochemical features of optimum activated hydrochar were investigated, as well as batch adsorption experiments. The pseudo-second-order kinetic model and the Langmuir isotherm model were found to fit the experimental results in batch adsorption studies [\documentclass[12pt]{minimal}
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\begin{document}$${q}_{max}=90.1$$\end{document}qmax=90.1 (mg/g)]. Thermodynamic experiments further confirmed the spontaneous and exothermic adsorption mechanism.
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20
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Marzbali MH, Kundu S, Halder P, Patel S, Hakeem IG, Paz-Ferreiro J, Madapusi S, Surapaneni A, Shah K. Wet organic waste treatment via hydrothermal processing: A critical review. CHEMOSPHERE 2021; 279:130557. [PMID: 33894517 DOI: 10.1016/j.chemosphere.2021.130557] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
There are several recent reviews published in the literature on hydrothermal carbonization, liquefaction and supercritical water gasification of lignocellulosic biomass and algae. The potential of hydrochar, bio-oil or synthesis gas production and applications have also been reviewed individually. The comprehensive review on the hydrothermal treatment of wet wastes (such as municipal solid waste, food waste, sewage sludge, algae) covering carbonization, liquefaction and supercritical water gasification, however, is missing in the literature which formed the basis of the current review paper. The current paper critically reviews the literature around the full spectrum of hydrothermal treatment for wet wastes and establishes a good comparison of the different hydrothermal treatment options for managing wet waste streams. Also, the role of catalysts as well as synthesis of catalysts using hydrothermal treatment of biomass has been critically reviewed. For the first time, efforts have also been made to summarize findings on modelling works as well as techno-economic assessments in the area of hydrothermal treatments of wet wastes. The study concludes with key findings, knowledge gaps and future recommendations to improve the productivity of hydrothermal treatment of wet wastes, helping improve the commercial viability and environmental sustainability.
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Affiliation(s)
- Mojtaba Hedayati Marzbali
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Sazal Kundu
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Pobitra Halder
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Savankumar Patel
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Ibrahim Gbolahan Hakeem
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Jorge Paz-Ferreiro
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Srinivasan Madapusi
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia
| | - Aravind Surapaneni
- South East Water, Frankston, Victoria, 3199, Australia; ARC Training Centre on Advance Transformation of Australia's Biosolids Resources, RMIT University, Bundoora, 3083, Australia
| | - Kalpit Shah
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, Victoria, 3000, Australia; ARC Training Centre on Advance Transformation of Australia's Biosolids Resources, RMIT University, Bundoora, 3083, Australia.
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21
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Gao S, Lu D, Qian T, Zhou Y. Thermal hydrolyzed food waste liquor as liquid organic fertilizer. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 775:145786. [PMID: 33621877 DOI: 10.1016/j.scitotenv.2021.145786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/05/2021] [Accepted: 02/06/2021] [Indexed: 06/12/2023]
Abstract
Thermal hydrolysis (TH) is an efficient technology for food waste (FW) management. This study investigated the nutrients released from FW under various TH temperature (140, 160, 180, 200 and 220 °C) and evaluated the feasibility of the hydrolyzed liquor (HL) as liquid organic fertilizer. The phytotoxicity and biotoxicity of HL was analyzed using wheat seed and Pseudomonas putida. Results revealed that TH could effectively solubilize FW and release nutrients (N, P and K) and organic substances. The highest content of total nitrogen (TN, 1685 mgN/L) and phosphorus (TP, 235 mgP/L) in the HL was obtained under 180 °C. The K+ was 278-293 mg/L regardless of treatment temperature. Secondary nutrients (Ca and Mg) and micro metals (Fe, Cu, Zn, Al, Co and Mn) were all detected at relatively high level, while heavy metals (As and Cd) were generally lower than 0.5 mg/L. Twenty types of free amino acid were identified and the maximum total concentration was 4965.13 mg/L. 2% HL displayed higher germination index (>80%) and enhanced root and shoot lengths. No biotoxicity was observed as confirmed by the bioassay. This study proposes a feasible method to solubilize food waste and produce liquid organic fertilizer.
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Affiliation(s)
- Shumei Gao
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore; College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
| | - Dan Lu
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore
| | - Tingting Qian
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore
| | - Yan Zhou
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 639798, Singapore.
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22
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Bayat H, Dehghanizadeh M, Jarvis JM, Brewer CE, Jena U. Hydrothermal Liquefaction of Food Waste: Effect of Process Parameters on Product Yields and Chemistry. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2021. [DOI: 10.3389/fsufs.2021.658592] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Increasing food waste generation (1.6 billion tons per year globally) due to urban and industrial development has prompted researchers to pursue alternative waste management methods. Energy valorization of food waste is a method that can reduce the environmental impacts of landfills and the global reliance on crude oil for liquid fuels. In this study, food waste was converted to bio-crude oil via hydrothermal liquefaction (HTL) in a batch reactor at moderate temperatures (240–295°C), reaction times (0–60 min), and 15 wt.% solids loading. The maximum HTL bio-crude oil yield (27.5 wt.%), and energy recovery (49%) were obtained at 240°C and 30 min, while the highest bio-crude oil energy content (40.2 MJ/kg) was observed at 295°C. The properties of the bio-crude oil were determined using thermogravimetric analysis, fatty acid methyl ester (FAME) analysis by gas chromatography with flame ionization detection, CHNS elemental analysis, and ultrahigh-resolution Fourier transform ion cyclotron resonance mass spectroscopy (FT-ICR MS). FT-ICR MS results indicated that the majority of the detected compounds in the bio-crude oil were oxygen-containing species. The O4 class was the most abundant class of heteroatom-containing compounds in all HTL bio-crude oil samples produced at 240°C; the O2 class was the most abundant class obtained at 265 and 295°C. The total FAME content of the bio-crude oil was 15–37 wt.%, of which the most abundant were palmitic acid (C16:0), palmitoleic acid (C16:1), stearic acid (C18:0), and polyunsaturated fatty acids (C18:3N:3, C18:3N:6).
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23
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Process Water Recirculation during Hydrothermal Carbonization of Waste Biomass: Current Knowledge and Challenges. ENERGIES 2021. [DOI: 10.3390/en14102962] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Hydrothermal carbonization (HTC) is considered as an efficient and constantly expanding eco-friendly methodology for thermochemical processing of high moisture waste biomass into solid biofuels and valuable carbonaceous materials. However, during HTC, a considerable amount of organics, initially present in the feedstock, are found in the process water (PW). PW recirculation is attracting an increasing interest in the hydrothermal process field as it offers the potential to increase the carbon recovery yield while increasing hydrochar energy density. PW recirculation can be considered as a viable method for the valorization and reuse of the HTC aqueous phase, both by reducing the amount of additional water used for the process and maximizing energy recovery from the HTC liquid residual fraction. In this work, the effects of PW recirculation, for different starting waste biomasses, on the properties of hydrochars and liquid phase products are reviewed. The mechanism of production and evolution of hydrochar during recirculation steps are discussed, highlighting the possible pathways which could enhance energy and carbon recovery. Challenges of PW recirculation are presented and research opportunities proposed, showing how PW recirculation could increase the economic viability of the process while contributing in mitigating environmental impacts.
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Xu J, Lin H, Sheng K. Effects of Hydrothermal Pretreatment and Hydrochar Addition on the Performance of Pig Carcass Anaerobic Digestion. Front Microbiol 2021; 12:622235. [PMID: 33912142 PMCID: PMC8071862 DOI: 10.3389/fmicb.2021.622235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 03/15/2021] [Indexed: 11/14/2022] Open
Abstract
Proper disposal and utilization of dead pig carcasses are problems of public concern. The combination of hydrothermal pretreatment (HTP) and anaerobic digestion is a promising method to treat these wastes, provided that digestion inhibition is reduced. For this reason, the aim of this work was to investigate the optimal HTP temperature (140–180°C) for biogas production during anaerobic digestion of dead pigs in batch systems. In addition, the effects of hydrochar addition (6 g/L) on anaerobic digestion of pork products after HTP in continuous stirred tank reactors (CSTR) were determined. According to the results, 90% of lipids and 10% of proteins present in the pork were decomposed by HTP. In addition, the highest chemical oxygen demand (COD) concentration in liquid products (LP) reached 192.6 g/L, and it was obtained after 170°C HTP. The biogas potential from the solid residue (SR) and LP was up to 478 mL/g-VS and 398 mL/g-COD, respectively. A temperature of 170°C was suitable for pork HTP, which promoted the practical biogas yield because of the synergistic effect between proteins and lipids. Ammonia inhibition was reduced by the addition of hydrochar to the CSTR during co-digestion of SR and LP, maximum ammonia concentration tolerated by methanogens increased from 2.68 to 3.38 g/L. This improved total biogas yield and degradation rate of substrates, reaching values of 28.62 and 36.06%, respectively. The acetate content in volatile fatty acids (VFA) may be used as an index that reflects the degree of methanogenesis of the system. The results of the present work may also provide guidance for the digestion of feedstock with high protein and lipid content.
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Affiliation(s)
- Jie Xu
- School of City and Architecture Engineering, Zaozhuang University, Zaozhuang, China.,College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Hongjian Lin
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Kuichuan Sheng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
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25
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Hydrothermal Carbonization (HTC) of Seaweed (Macroalgae) for Producing Hydrochar. ENERGIES 2021. [DOI: 10.3390/en14071805] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Waste seaweed that is collected at coastal regions of maritime provinces in Canada is creating ecological problems as it promotes an anoxic event, which produces nearly zero dissolved oxygen in water along with hydrogen sulfide emission. The work done in this study attempts to address this issue by producing a coal-like solid hydrochar and nutritious liquid slurry (processed water) by employing a rather recent thermo-chemical process called hydrothermal carbonization (HTC) on the seaweed. The HTC was carried out in a batch reactor system for three different reaction temperatures, 180 °C, 200 °C, 220 °C, and three different reaction times, 30, 60, and 120 min. Each of the produced hydrochars was characterized by different analytical methods. The effects of the process conditions on the yield and the properties of the hydrochar and process water were examined. The hydrochar produced at 220 °C and 120 min showed the highest carbon content (48.5%) and heating value (18.93 MJ/kg). The energy density and carbon to nitrogen (C/N) ratio in the hydrochar increased significantly as compared to raw seaweed. Moreover, HTC reduced the ash yield and volatile compounds of the seaweed. Thus, hydrochar can be used as a fuel for direct combustion, in soil remediation, or in carbon sequestration applications.
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26
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Zhang M, Hu Y, Wang H, Li H, Han X, Zeng Y, Xu CC. A review of bio-oil upgrading by catalytic hydrotreatment: Advances, challenges, and prospects. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111438] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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28
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Xu Z, Qi R, Xiong M, Zhang D, Gu H, Chen W. Conversion of cotton textile waste to clean solid fuel via surfactant-assisted hydrothermal carbonization: Mechanisms and combustion behaviors. BIORESOURCE TECHNOLOGY 2021; 321:124450. [PMID: 33264746 DOI: 10.1016/j.biortech.2020.124450] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
The cotton textile was an abundant energy resource while was otherwise treated as waste. In this work, surfactants were used as catalysts in the hydrothermal carbonization (HTC) to transform cotton textile waste (CTW) into clean solid fuel. Furthermore, the conversion mechanisms of hydrothermal products during surfactant-assisted HTC were preliminarily proposed. The results showed that Span 80 and sodium dodecylbenzenesulfonate facilitated the transformation of CTW into bio-oil, while Tween 80 was more conducive to the development of pseudo-lignin, which endowed hydrochars higher energy density and updated the fuel quality and combustion behavior. Therefore, the research presented an effective method to convert CTW to clean solid fuel through the HTC treatment combining with surfactants.
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Affiliation(s)
- Zhihua Xu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai 200093, PR China.
| | - Renzhi Qi
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai 200093, PR China
| | - Mengmeng Xiong
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai 200093, PR China
| | - Daofang Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai 200093, PR China
| | - He Gu
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai 200093, PR China
| | - Weifang Chen
- School of Environment and Architecture, University of Shanghai for Science and Technology, 516 Jungong Rd., Shanghai 200093, PR China
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The Application of Catalytic Processes on the Production of Algae-Based Biofuels: A Review. Catalysts 2020. [DOI: 10.3390/catal11010022] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Over the last decades, microalgal biomass has gained a significant role in the development of different high-end (nutraceuticals, colorants, food supplements, and pharmaceuticals) and low-end products (biodiesel, bioethanol, and biogas) due to its rapid growth and high carbon-fixing efficiency. Therefore, microalgae are considered a useful and sustainable resource to attain energy security while reducing our current reliance on fossil fuels. From the technologies available for obtaining biofuels using microalgae biomass, thermochemical processes (pyrolysis, Hydrothermal Liquefaction (HTL), gasification) have proven to be processed with higher viability, because they use all biomass. However, due to the complex structure of the biomass (lipids, carbohydrates, and proteins), the obtained biofuels from direct thermochemical conversion have large amounts of heteroatoms (oxygen, nitrogen, and sulfur). As a solution, catalyst-based processes have emerged as a sustainable solution for the increase in biocrude production. This paper’s objective is to present a comprehensive review of recent developments on the catalyst-mediated conversion of algal biomass. Special attention will be given to operating conditions, strains evaluated, and challenges for the optimal yield of algal-based biofuels through pyrolysis and HTL.
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30
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Halim MA, Rahman MM, Megharaj M, Naidu R. Cadmium Immobilization in the Rhizosphere and Plant Cellular Detoxification: Role of Plant-Growth-Promoting Rhizobacteria as a Sustainable Solution. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13497-13529. [PMID: 33170689 DOI: 10.1021/acs.jafc.0c04579] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Food is the major cadmium (Cd)-exposure pathway from agricultural soils to humans and other living entities and must be reduced in an effective way. A plant can select beneficial microbes, like plant-growth-promoting rhizobacteria (PGPR), depending upon the nature of root exudates in the rhizosphere, for its own benefits, such as plant growth promotion as well as protection from metal toxicity. This review intends to seek out information on the rhizo-immobilization of Cd in polluted soils using the PGPR along with plant nutrient fertilizers. This review suggests that the rhizo-immobilization of Cd by a combination of PGPR and nanohybrid-based plant nutrient fertilizers would be a potential and sustainable technology for phytoavailable Cd immobilization in the rhizosphere and plant cellular detoxification, by keeping the plant nutrition flow and green dynamics of plant nutrition and boosting the plant growth and development under Cd stress.
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Affiliation(s)
- Md Abdul Halim
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Department of Biotechnology, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
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31
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Wang K, Ma Q, Burns M, Sudibyo H, Sills DL, Goldfarb JL, Tester JW. Impact of feed injection and batch processing methods in hydrothermal liquefaction. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104887] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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32
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Niinipuu M, Bergknut M, Boily JF, Rosenbaum E, Jansson S. Influence of water matrix and hydrochar properties on removal of organic and inorganic contaminants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:30333-30341. [PMID: 32451904 PMCID: PMC7378115 DOI: 10.1007/s11356-020-09164-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 05/04/2020] [Indexed: 05/26/2023]
Abstract
The removal of contaminants from water using low-cost adsorbents has been widely studied, yet studies employing a realistic water matrix are still lacking. This study investigated the removal of organic compounds (trimethoprim, fluconazole, and perfluorooctanoic acid (PFOA)) and metals (As, Zn, and Cu) from landfill leachate. Additionally, tests in pure water, humic acid, and ion matrices were carried out to better understand how the water matrix affects adsorption. The hydrochars were produced from four feedstocks at three carbonization temperatures. The results show that the removal efficiencies for organic pollutants were low and metal removal by hydrochars was comparable with commercial activated carbon. The removal of all compounds from pure water was substantially lower. Tests with humic acid and ion-containing matrices could not fully explain the increased removal in the landfill leachate, which may be due to the combination of the water matrix and presence of soluble species from the hydrochars.
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Affiliation(s)
- Mirva Niinipuu
- Department of Chemistry, Umeå University, SE-90187, Umeå, Sweden
- Industrial Doctoral School, Umeå University, SE-90187, Umeå, Sweden
| | - Magnus Bergknut
- MTC-Miljötekniskt Center AB, Dåva Energiväg 8, SE-90595, Umeå, Sweden
| | | | - Erik Rosenbaum
- MTC-Miljötekniskt Center AB, Dåva Energiväg 8, SE-90595, Umeå, Sweden
| | - Stina Jansson
- Department of Chemistry, Umeå University, SE-90187, Umeå, Sweden.
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33
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Lan M, Li W, Chang C, Liu L, Li P, Pan X, Ma X, He C, Jiao Y. Enhancement on enzymolysis of pigskin with ultrasonic assistance. Bioengineered 2020; 11:397-407. [PMID: 32175806 PMCID: PMC7170554 DOI: 10.1080/21655979.2020.1736736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The fur is hard to decompose during the fermentation process of diseased swine carcasses. In order to enhance the enzymolysis of pigskin, the ultrasonic was proposed to use during the process of the enzymatic hydrolysis. The response surface optimization experiments were carried out with the DH (degree of hydrolysis) as the response value and the optimum conditions for enzymatic hydrolysis were determined. Based the optimum conditions, orthogonal experiments were carried out with ultrasonic frequency, power and time as variables, and optimal ultrasonic parameters were obtained. Without the assistance of ultrasonic, the descending order of influence factors on DH was, temperature>SC(Substrate concentration)>RES(The ratio of enzyme to substrate)>pH. Moreover, the DH value is of 10.42% under the following optimal conditions: RES is of 16,006 U/g, the temperature is of 48.92°C, the SC is of 59.76 g/L and pH is of 10.43. Frequency has the greatest effect on DH, followed by power, and finally time. The optimum hydrolysis time is of 5 h, and the DH is of 22.94% were obtained under the following optimum ultrasonic pretreatment conditions: frequency combination is of (20,40,40), power is of 600 W and time is of 25 min. Comparing with the group without ultrasonic pretreatment, the DH for the ultrasonic assistance increased by 4%, the hydrolysis time was shorten by 3 h, and the total amino acids increased by 15.98%.
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Affiliation(s)
- Mingming Lan
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Weifeng Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Chun Chang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou, China
| | - Liang Liu
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Panpan Li
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Xiaohui Pan
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Xiaoran Ma
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Chao He
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
| | - Youzhou Jiao
- Key Laboratory of New Materials and Facilities for Rural Renewable Energy of China's Ministry of Agriculture and Rural Affairs, College of Mechanical & Electrical Engineering, Henan Agricultural University, Zhengzhou, China.,Henan International Joint Laboratory of Biomass Energy and Nanomaterials, Henan Agricultural University, Zhengzhou, China
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Nanda S, Reddy SN, Hunter HN, Vo DVN, Kozinski JA, Gökalp I. Catalytic subcritical and supercritical water gasification as a resource recovery approach from waste tires for hydrogen-rich syngas production. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104627] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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35
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Meng X, Huang Q, Xu J, Gao H, Yan J. A review of phosphorus recovery from different thermal treatment products of sewage sludge. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s42768-019-00007-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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36
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Zheng C, Ma X, Yao Z, Chen X. The properties and combustion behaviors of hydrochars derived from co-hydrothermal carbonization of sewage sludge and food waste. BIORESOURCE TECHNOLOGY 2019; 285:121347. [PMID: 31004948 DOI: 10.1016/j.biortech.2019.121347] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/11/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
The experiments of co-hydrothermal carbonization (co-HTC) of sewage sludge and food waste in different mixing ratio (30%, 50% and 70%) and process temperature (180 °C, 230 °C and 280 °C) were conducted in this paper. And the hydrochars properties and thermal behaviors were investigated to determine the effects of the conditions. The results showed that the hydrochars derived from co-HTC possessed higher C content, higher HHV compared with the hydrochar of sewage sludge. Meanwhile, it maintained low N, S and O content relatively. It ascribed to the carbonization, dehydration and decarboxylation reactions according to the ultimate analysis and proximate analysis. And the TGA indicated that the combustion behaviors got better compared with the hydrochar of sewage sludge. Therefore, the co-HTC with food waste is an effective way to transform sewage sludge into clean solid fuel in the field of energy utilization.
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Affiliation(s)
- Chupeng Zheng
- Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, School of Electric Power, South China University of Technology, Guangzhou 510640, China
| | - Xiaoqian Ma
- Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, School of Electric Power, South China University of Technology, Guangzhou 510640, China.
| | - Zhongliang Yao
- Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, School of Electric Power, South China University of Technology, Guangzhou 510640, China
| | - Xinfei Chen
- Guangdong Province Key Laboratory of Efficient and Clean Energy Utilization, School of Electric Power, South China University of Technology, Guangzhou 510640, China
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37
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Tasca AL, Puccini M, Gori R, Corsi I, Galletti AMR, Vitolo S. Hydrothermal carbonization of sewage sludge: A critical analysis of process severity, hydrochar properties and environmental implications. WASTE MANAGEMENT (NEW YORK, N.Y.) 2019; 93:1-13. [PMID: 31235045 DOI: 10.1016/j.wasman.2019.05.027] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/14/2019] [Accepted: 05/16/2019] [Indexed: 05/24/2023]
Abstract
Hydrothermal carbonization (HTC) of sewage sludge reduces the waste volume and can be source of energy and valuable products. Furthermore, HTC offers several advantages over conventional dry-thermal pre-treatments, as no prior drying is requested, and the high quality of the char produced promotes applications as energy production and storage, wastewater remediation, and soil amendment. Relationships between char yields, physicochemical properties and process parameters are here analysed, with the aim to provide insight into the choice of the process severity required to fit the desired application. Moreover, presence and fate of heavy metals and organic contaminants are discussed. The highest reaction temperature is the main parameter affecting the physicochemical characteristics of the char produced, while the heating rate governs the heat mass transfer and the rate of intermediates formation. Depolymerization of the biomass results in a reduction of the oxygen to carbon ratio and, therefore, in augmented high heating values, further increased by deposition of 5-(hydroxymethyl)furfural. Recirculation of process water may enhance dehydration reactions and the deposition of degraded polymers, increasing dewaterability and yield, but field trials are recommended to assess the feasibility of this option. An overuse of chars for energy generation purposes would be deleterious for the environmental life cycle. Further research is encouraged to assess the pollutants abatement and their degradation pathways when incorporated in the carbonaceous product, to promote the application of hydrochars as soil amendment, as well as for environmental remediation purposes.
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Affiliation(s)
- Andrea Luca Tasca
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 Pisa, Italy
| | - Monica Puccini
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 Pisa, Italy.
| | - Riccardo Gori
- Department of Civil & Environmental Engineering, University of Florence, via S. Marta 3, 50139 Florence, Italy
| | - Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Strada Laterina 8, 53100 Siena, Italy
| | | | - Sandra Vitolo
- Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 Pisa, Italy
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38
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Nanda S, Rana R, Hunter HN, Fang Z, Dalai AK, Kozinski JA. Hydrothermal catalytic processing of waste cooking oil for hydrogen-rich syngas production. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.10.039] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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39
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Zaker A, Guerra P, Wang Y, Tompsett GA, Huang X, Bond JQ, Timko MT. Evidence of heterogeneous catalytic activity of ZSM-5 in supercritical water for dodecane cracking. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.05.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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40
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Rathna R, Varjani S, Nakkeeran E. Recent developments and prospects of dioxins and furans remediation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2018; 223:797-806. [PMID: 29986327 DOI: 10.1016/j.jenvman.2018.06.095] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 06/10/2018] [Accepted: 06/30/2018] [Indexed: 05/18/2023]
Abstract
Rapid urbanization and industrialization of anthropogenic activities have exerted immense pressure on the environment. Polyhalogenated organic compounds, especially dioxins and furans are regarded as ubiquitously persistent environmental pollutants in the ecosystem. The recalcitrant nature of dioxins and furans induce toxicity in both humans and wildlife. Dioxins and furans are generated by defective technological chemical processes that occur during the manufacture of herbicides and pesticides, use of fertilizers, bleaching of paper and wood pulp and incomplete combustion process. However, incineration and incomplete combustion of solid waste are the main cause for the discharge of dioxins and furans to the environment. During incineration and incomplete combustion, noxious flue gas and ashes are released into the atmosphere and contaminate the soil and water systems; thereby affecting the ecology. According to World Health Organization fact sheet 2016, more than 90% of human exposure to dioxins is through the food chain, especially from dairy products, seafood and meat. These pollutants are mutagenic, carcinogenic, immunotoxic and teratogenic for lower and higher forms of life i.e. microorganisms to humans. This review describes the sources of dioxins and furans pollution, hazardous effects on the ecosystem and recent techniques to minimize and treat dioxins and furans contaminants in the environment. This paper also previews the significance of conventional and latest remediation techniques prevailing around the globe for treating dioxins and furans entry into the ecosystem.
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Affiliation(s)
- Ravichandran Rathna
- Research Laboratory, Department of Biotechnology, Sri Venkateswara College of Engineering (Autonomous), Sriperumbudur Tk, 602 117, Tamil Nadu, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Sector-10A, Gandhinagar, 382 010, Gujarat, India
| | - Ekambaram Nakkeeran
- Research Laboratory, Department of Biotechnology, Sri Venkateswara College of Engineering (Autonomous), Sriperumbudur Tk, 602 117, Tamil Nadu, India.
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41
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Xu J, Mustafa AM, Lin H, Choe UY, Sheng K. Effect of hydrochar on anaerobic digestion of dead pig carcass after hydrothermal pretreatment. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 78:849-856. [PMID: 32559980 DOI: 10.1016/j.wasman.2018.07.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 06/14/2018] [Accepted: 07/02/2018] [Indexed: 05/22/2023]
Abstract
Incineration and burial are the current practices for pig carcasses disposal but are not environmentally friendly. Anaerobic digestion can be a better alternative if the process inhibition by carcass digestion can be ameliorated. This study successfully mitigated the inhibition in anaerobic digestion of carcasses by hydrochar addition and by co-digestion with RS and HRS. Biogas production from SP of the pretreated hydrothermal carcasses was enhanced by 60.7 to 90.8% through hydrochar addition. The highest biogas production of 450 mL/g-VS was obtained at 4 g-hydrochar/L addition. The methane content was also increased from 57.5% to up to 69.8%. Each gram of hydrochar removed 25 mg of ammonium and 50 mg of VFA. Hydrochar addition promoted the conversion of VFA to biogas by strengthening the intensity of functional groups and the immobilization of microbial biomass. Co-digestion of SP with RS or HRS also increased the biogas production, and the optimal production of 428 mL/g VS was obtained at 70% SP and 30% RS. The co-digestion of carcass SP with RS and the addition of hydrochar can be a promising solution for improving biogas production from a pig carcass, and can be potentially developed as a sustainable waste management method.
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Affiliation(s)
- Jie Xu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Ahmed M Mustafa
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; Department of Agricultural Engineering, Faculty of Agriculture, Suez Canal University, Ismailia 41522, Egypt
| | - Hongjian Lin
- Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St Paul, MN 55108, USA
| | - Ung Yong Choe
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China
| | - Kuichuan Sheng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
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42
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Reisinger M, Tirpanalan Ö, Pruksasri S, Kneifel W, Novalin S. Disintegration of the agricultural by-product wheat bran under subcritical conditions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:4296-4303. [PMID: 29427290 DOI: 10.1002/jsfa.8952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 01/23/2018] [Accepted: 02/04/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND The disintegration of destarched wheat bran in water and sulfuric acid (pH 3) under subcritical conditions (275-300 °C) and at short reaction times (1-4 min) was investigated. A cascade process comprising a stepwise separation of the liquid was applied to reduce the formation of undesired degradation products. RESULTS The highest degree of biomass disintegration (67% dry mass solubilization) was achieved by application of a cascade process at 275 °C (pH 3). Regarding the dissolution of carbohydrates (monomeric and oligomeric form), the total glucose yields remained below 60%, while the total xylose and arabinose yields were about 76% and 67%. Approximately 74% of the protein and 95% of the mineral fraction could be extracted. The application of the cascade process enabled a substantially reduced formation of degradation products. CONCLUSION When operating hydrothermally and subcritically in order to avoid some problematic aspects of a biorefinery, an extensive disintegration and monomerization of wheat bran and its constituents remains difficult even under the tested conditions (300 °C, pH 3). However, the applied cascade process proved to be useful to increase the yields and to substantially reduce the formation of undesired degradation products. Despite this fact, increased water consumption has to be conceded. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Michael Reisinger
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Özge Tirpanalan
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Suwattana Pruksasri
- Department of Biotechnology, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, Thailand
| | - Wolfgang Kneifel
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Senad Novalin
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
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43
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Zhou Y, Engler N, Nelles M. Symbiotic relationship between hydrothermal carbonization technology and anaerobic digestion for food waste in China. BIORESOURCE TECHNOLOGY 2018; 260:404-412. [PMID: 29657110 DOI: 10.1016/j.biortech.2018.03.102] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 03/19/2018] [Accepted: 03/20/2018] [Indexed: 06/08/2023]
Abstract
Food waste (FW) is traditionally disposed through landfills and incineration in China. Nowadays, there are some promising methods, such as anaerobic digestion (AD) or feeding and composting, which are being applied in pilot cities. However, the inherent characteristics of Chinese FW may be regarded as a double-edged sword in the practical applications of these disposal methods. To overcome these challenges, two modes of the hydrothermal carbonization (HTC) process were reviewed as innovative strategies in this article. Meanwhile, the "symbiotic relationship" between Chinese FW and HTC technologies was highlighted. To improve treatment efficiency of FW, we should not only try different methods and develop existing technologies, but also pay more attention to the utilization and "1 + 1 > 2" synergistic effect of their combinations, such as the combination of HTC and AD as a co-treatment method for saving on the construction cost and avoiding redistribution of social resources.
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Affiliation(s)
- Ying Zhou
- University of Rostock, Faculty of Agricultural and Environmental Sciences, Department Waste Management, Justus-v.-Liebig-Weg 6, 18059 Rostock, Germany
| | - Nils Engler
- University of Rostock, Faculty of Agricultural and Environmental Sciences, Department Waste Management, Justus-v.-Liebig-Weg 6, 18059 Rostock, Germany
| | - Michael Nelles
- University of Rostock, Faculty of Agricultural and Environmental Sciences, Department Waste Management, Justus-v.-Liebig-Weg 6, 18059 Rostock, Germany.
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44
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Qin Y, Li G, Gao Y, Zhang L, Ok YS, An T. Persistent free radicals in carbon-based materials on transformation of refractory organic contaminants (ROCs) in water: A critical review. WATER RESEARCH 2018; 137:130-143. [PMID: 29547776 DOI: 10.1016/j.watres.2018.03.012] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 03/02/2018] [Accepted: 03/05/2018] [Indexed: 06/08/2023]
Abstract
With the increased concentrations and kinds of refractory organic contaminants (ROCs) in aquatic environments, many previous reviews systematically summarized the applications of carbon-based materials in the adsorption and catalytic degradation of ROCs for their economically viable and environmentally friendly behavior. Interestingly, recent studies indicated that carbon-based materials in natural environment can also mediate the transformation of ROCs directly or indirectly due to their abundant persistent free radicals (PFRs). Understanding the formation mechanisms of PFRs in carbo-based materials and their interactions with ROCs is essential to develop their further applications in environment remediation. However, there is no comprehensive review so far about the direct and indirect removal of ROCs mediated by PFRs in amorphous, porous and crystalline carbon-based materials. The review aims to evaluate the formation mechanisms of PFRs in carbon-based materials synthesized through pyrolysis and hydrothermal carbonization processes. The influence of synthesis conditions (temperature and time) and carbon sources on the types as well as the concentrations of PFRs in carbon-based materials are also discussed. In particular, the effects of metals on the concentrations and types of PFRs in carbon-based materials are highlighted because they are considered as the catalysts for the formation of PFRs. The formation mechanisms of reactive species and the further transformation mechanisms of ROCs are briefly summarized, and the surface properties of carbon-based materials including surface area, types and number of functional groups, etc. are found to be the key parameters controlling their activities. However, due to diversity and complexity of carbon-based materials, the exact relationships between the activities of carbon-based materials and PFRs are still uncertain. Finally, the existing problems and current challenges for the ROCs transformation with carbon-based materials are also pointed out.
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Affiliation(s)
- Yaxin Qin
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Guiying Li
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Yanpeng Gao
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yong Sik Ok
- Korea Biochar Research Center, O-Jeong Eco-Resilience Institute & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Taicheng An
- Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China.
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45
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Hydrothermal Carbonization of Municipal Woody and Herbaceous Prunings: Hydrochar Valorisation as Soil Amendment and Growth Medium for Horticulture. SUSTAINABILITY 2018. [DOI: 10.3390/su10030846] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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46
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47
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Leon M, Garcia AN, Marcilla A, Martinez-Castellanos I, Navarro R, Catala L. Thermochemical conversion of animal by-products and rendering products. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 73:447-463. [PMID: 28826808 DOI: 10.1016/j.wasman.2017.08.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 08/01/2017] [Accepted: 08/04/2017] [Indexed: 06/07/2023]
Abstract
This paper presents a preliminary study of the characterization of real waste from slaughterhouses as well as their rendering products (protein and fat) through different pyrolytic techniques: thermogravimetric analysis (TG), analytical pyrolysis in a pyroprobe equipment and hydrothermal liquefaction process (HTL). The experiments have allowed a deeper knowledge about the thermal behavior of these wastes under different conditions: slow pyrolysis up to 800°C (TG), flash pyrolysis at 500°C and room pressure (pyroprobe) and slow pyrolysis at 290°C and 110-130bar (HTL batch reactor). Experiments with each one of the materials (real waste, PAP and fat) as well as some mixtures have been performed. Gas chromatography and mass spectrometry techniques were used to identify the pyrolytic products obtained. The results indicate that fatty acids and fatty esters are the major group obtained in the pyrolysis of fat samples, followed by aliphatic hydrocarbons. In the case of PAP pyrolysis, heterocyclic aromatic compounds, which includes typical products coming from protein degradation, is the major group obtained. Oxygenated aliphatics are also obtained in high amounts. In the case of the HTL experiments, significant glycerine amounts were detected in the aqueous phase. The yield of biocrude obtained under HTL conditions is about 30%, with a high proportion of nitrogenated compounds (amides, pyrrole and pyridine derivatives). Generation of amides is much higher under HTL conditions than in the analytical pyrolysis runs while the proportion of acids is reduced.
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Affiliation(s)
- Milagros Leon
- Ap. Correus 99, Department of Chemical Engineering, University of Alicante, E-03080 Alicante, Spain.
| | - Angela Nuria Garcia
- Ap. Correus 99, Department of Chemical Engineering, University of Alicante, E-03080 Alicante, Spain
| | - Antonio Marcilla
- Ap. Correus 99, Department of Chemical Engineering, University of Alicante, E-03080 Alicante, Spain
| | | | - Rosa Navarro
- Ap. Correus 99, Department of Chemical Engineering, University of Alicante, E-03080 Alicante, Spain
| | - Lucía Catala
- Ap. Correus 99, Department of Chemical Engineering, University of Alicante, E-03080 Alicante, Spain
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Knez Ž, Hrnčič MK, Čolnik M, Škerget M. Chemicals and value added compounds from biomass using sub- and supercritical water. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.08.011] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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49
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Rodriguez Correa C, Kruse A. Supercritical water gasification of biomass for hydrogen production – Review. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.09.019] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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50
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Huang C, Zhao C, Guo HJ, Wang C, Luo MT, Xiong L, Li HL, Chen XF, Chen XD. Fast Startup of Semi-Pilot-Scale Anaerobic Digestion of Food Waste Acid Hydrolysate for Biogas Production. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11237-11242. [PMID: 29200277 DOI: 10.1021/acs.jafc.7b04005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, a fast startup of semi-pilot-scale anaerobic digestion of food waste acid hydrolysate for biogas production was carried out for the first time. During the period of fast startup, more than 85% of chemical oxygen demand (COD) can be degraded, and even more than 90% of COD can be degraded during the later stage of anaerobic digestion. During this anaerobic digestion process, the biogas yield, the methane yield, and the CH4 content in biogas were 0.542 ± 0.056 m3/kgCOD consumption, 0.442 ± 0.053 m3/kgCOD consumption, and 81.52 ± 3.05%, respectively, and these values were high and stable. Besides, the fermentation pH was very stable, in which no acidification was observed during the anaerobic digestion process (outlet pH was 7.26 ± 0.05 for the whole anaerobic digestion). Overall, the startup of this anaerobic digestion can be completed in a short period (the system can be stable 2 days after the substrate was pumped into the bioreactor), and anaerobic digestion of food waste acid hydrolysate is feasible and attractive for industrial treatment of food waste and biogas production.
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Affiliation(s)
- Chao Huang
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
| | - Cheng Zhao
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Hai-Jun Guo
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
| | - Can Wang
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
| | - Mu-Tan Luo
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- University of Chinese Academy of Sciences , Beijing 100049, People's Republic of China
| | - Lian Xiong
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
| | - Hai-Long Li
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
| | - Xue-Fang Chen
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
| | - Xin-De Chen
- Chinese Academy of Sciences (CAS) Key Laboratory of Renewable Energy , Guangzhou, Guangdong 510640, People's Republic of China
- Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Guangzhou, Guangdong 510640, People's Republic of China
- Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development , Guangzhou, Guangdong 510640, People's Republic of China
- R&D Center of Xuyi Attapulgite Applied Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences , Xuyi, Jiangsu 211700, People's Republic of China
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