1
|
Tatla HK, Ismail S, Khan MA, Dhar BR, Gupta R. Coupling hydrothermal liquefaction and anaerobic digestion for waste biomass valorization: A review in context of circular economy. CHEMOSPHERE 2024; 361:142419. [PMID: 38789051 DOI: 10.1016/j.chemosphere.2024.142419] [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: 02/07/2024] [Revised: 05/09/2024] [Accepted: 05/22/2024] [Indexed: 05/26/2024]
Abstract
In light of the substantial global production of biomass waste, effective waste management and energy recovery solutions are of paramount importance. Hydrothermal liquefaction (HTL) and anaerobic digestion (AD) have emerged as innovative techniques for converting biomass waste into valuable resources. Their integration creates a synergistic framework that mitigates inherent limitations, leading to improved efficiency, enhanced product quality, and the comprehensive utilization of biomass. This review paper investigates the integration of HTL and AD, highlighting its significance and potential benefits as well as the optimal sequencing (HTL followed by AD and AD followed by HTL). The review encompasses experimental procedures, factors influencing both sequencing options, energy recovery characterizations, final product outcomes, as well as toxicological assessments and discussions on reduction. Additionally, it delves into the transition towards a circular bioeconomy and discusses the challenges and opportunities intrinsic to these processes. The findings presented in this review offer valuable insights to shape future research in this evolving field.
Collapse
Affiliation(s)
- Harveen Kaur Tatla
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada
| | - Sherif Ismail
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, Canada
| | - Mohd Adnan Khan
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada.
| | - Bipro Ranjan Dhar
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, Canada.
| | - Rajender Gupta
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB, Canada.
| |
Collapse
|
2
|
Leme VFC, Lopez K, Costa T, Conerty B, B Leonelli L, Zhang Y, Davidson PC. Hydrothermal liquefaction aqueous phase mycoremediation to increase inorganic nitrogen availability. Heliyon 2024; 10:e31992. [PMID: 38882322 PMCID: PMC11176836 DOI: 10.1016/j.heliyon.2024.e31992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/23/2024] [Accepted: 05/27/2024] [Indexed: 06/18/2024] Open
Abstract
Hydrothermal liquefaction aqueous phase (HTL-AP) is a waste product from a thermochemical process where wet biomass is converted into biocrude oil. This nutrient-rich wastewater may be repurposed to benefit society by assisting crop growth after adequate treatment to increase inorganic nitrogen, especially NO3 -. This study aims to increase HTL-AP inorganic nitrogen, specifically NH3/NH4 + and NO3 -, through fungal remediation for further use in hydroponic systems. Trametes versicolor, a white-rot fungus known for degrading a range of organic pollutants, was used to treat a diluted (5 %) HTL-AP for 9 days. No fungal growth was observed, but T. versicolor activity was suspected by laccase activity throughout cultivation time. NO3 --N and NH3/NH4 +-N increased by 17 and 8 times after three days of fungal treatment, which was chosen as the appropriate time for HTL-AP fungal treatment as it resulted in the highest concentration of NO3 --N. The addition of nitrifying bacteria to the fungal treatment resulted in a twofold increase in NO3 --N concentration compared to the fungal treatment alone, indicating an enhancement in treatment efficacy. COD decreased by 51.33 % after 24 h, which may be related to the fungus' capacity to reduce the concentration of organics in the wastewater; nonetheless, COD increased in the following days, which may be related to the release of fungal byproducts. T. versicolor shows promise as a potential candidate for increasing inorganic nitrogen in HTL-AP. However, future studies should primarily address HTL-AP toxicity, reducing NH3/NH4 +-N while increasing NO3 --N, and hydroponics crop production after fungal treatment.
Collapse
Affiliation(s)
- Vitoria F C Leme
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Karla Lopez
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Tiago Costa
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Beth Conerty
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Laurie B Leonelli
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Yuanhui Zhang
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| | - Paul C Davidson
- Agricultural & Biological Engineering, University of Illinois Urbana-Champaign, Urbana, IL, 61801, USA
| |
Collapse
|
3
|
Zhou M, Taiwo K, Wang H, Ntihuga JN, Angenent LT, Usack JG. Anaerobic digestion of process water from hydrothermal treatment processes: a review of inhibitors and detoxification approaches. BIORESOUR BIOPROCESS 2024; 11:47. [PMID: 38713232 PMCID: PMC11076452 DOI: 10.1186/s40643-024-00756-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/31/2024] [Indexed: 05/08/2024] Open
Abstract
Integrating hydrothermal treatment processes and anaerobic digestion (AD) is promising for maximizing resource recovery from biomass and organic waste. The process water generated during hydrothermal treatment contains high concentrations of organic matter, which can be converted into biogas using AD. However, process water also contains various compounds that inhibit the AD process. Fingerprinting these inhibitors and identifying suitable mitigation strategies and detoxification methods is necessary to optimize the integration of these two technologies. By examining the existing literature, we were able to: (1) compare the methane yields and organics removal efficiency during AD of various hydrothermal treatment process water; (2) catalog the main AD inhibitors found in hydrothermal treatment process water; (3) identify recalcitrant components limiting AD performance; and (4) evaluate approaches to detoxify specific inhibitors and degrade recalcitrant components. Common inhibitors in process water are organic acids (at high concentrations), total ammonia nitrogen (TAN), oxygenated organics, and N-heterocyclic compounds. Feedstock composition is the primary determinant of organic acid and TAN formation (carbohydrates-rich and protein-rich feedstocks, respectively). In contrast, processing conditions (e.g., temperature, pressure, reaction duration) influence the formation extent of oxygenated organics and N-heterocyclic compounds. Struvite precipitation and zeolite adsorption are the most widely used approaches to eliminate TAN inhibition. In contrast, powdered and granular activated carbon and ozonation are the preferred methods to remove toxic substances before AD treatment. Currently, ozonation is the most effective approach to reduce the toxicity and recalcitrance of N and O-heterocyclic compounds during AD. Microaeration methods, which disrupt the AD microbiome less than ozone, might be more practical for nitrifying TAN and degrading recalcitrant compounds, but further research in this area is necessary.
Collapse
Affiliation(s)
- Mei Zhou
- Environmental Biotechnology Group, Department of Geosciences, University of Tübingen, Schnarrenbergstr. 94-96, 72076, Tübingen, Germany
| | - Kayode Taiwo
- Department of Food Science and Technology, University of Georgia, 100 Cedar Street, Athens, GA, 30602, USA
| | - Han Wang
- Environmental Biotechnology Group, Department of Geosciences, University of Tübingen, Schnarrenbergstr. 94-96, 72076, Tübingen, Germany
| | - Jean-Nepomuscene Ntihuga
- Environmental Biotechnology Group, Department of Geosciences, University of Tübingen, Schnarrenbergstr. 94-96, 72076, Tübingen, Germany
| | - Largus T Angenent
- Environmental Biotechnology Group, Department of Geosciences, University of Tübingen, Schnarrenbergstr. 94-96, 72076, Tübingen, Germany
- Max Planck Institute for Biology Tübingen, AG Angenent, Max Planck Ring 5, 72076, Tübingen, Germany
- Department of Biological and Chemical Engineering, Aarhus University, Gustav Wieds vej 10D, 8000, Aarhus C, Denmark
- The Novo Nordisk Foundation CO2 Research Center (CORC), Aarhus University, Gustav Wieds vej 10C, 8000, Aarhus C, Denmark
- Cluster of Excellence, Controlling Microbes to Fight Infections, University of Tübingen, Auf der Morgenstelle 28, 72074, Tübingen, Germany
| | - Joseph G Usack
- Department of Food Science and Technology, University of Georgia, 100 Cedar Street, Athens, GA, 30602, USA.
- New Materials Institute, University of Georgia, 220 Riverbend Rd, Athens, GA, 30602, USA.
- Institute for Integrative Agriculture, Office of Research, University of Georgia, 130 Coverdell Center, 500 D.W. Brooks Dr., Athens, GA, 30602, USA.
| |
Collapse
|
4
|
Liu M, Mahata C, Wang Z, Kumar S, Zheng Y. Comparative exploration of biological treatment of hydrothermal liquefaction wastewater from sewage sludge: Effects of culture, fermentation conditions, and ammonia stripping. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 349:119527. [PMID: 37951111 DOI: 10.1016/j.jenvman.2023.119527] [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: 08/15/2023] [Revised: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 11/13/2023]
Abstract
Hydrothermal liquefaction wastewater from sewage sludge (sludge HTLWW) is an emerging waste stream that requires treatment before being discharged into the environment. Biological treatment of sludge HTLWW is an attractive option due to the low cost and operational flexibility. In this study, we investigated and compared the performance of three bacterial strains and four fungal strains for biodegradation of sludge HTLWW. Our screening experiments established pH and mineral supplementation (iron, magnesium, calcium, and phosphorus) conditions that greatly improved COD removal and chemical compound degradation by the microbes. An ammonia stripping pretreatment improved COD removal efficiency of Rhodococci jostii RHA1 by 44%. All tested bacterial strains can tolerate 10× dilution of HTLWW and remove 35-44% of COD in 2-15 days, while all tested fungal strains were able to tolerate 20× dilution and were better at degrading phenolic compounds than bacteria. HTLWW treatment with biomass pellets of fungus Aspergillus niger NRRL 2001 achieved the best COD removal efficiency of 47% in 12 days without the need of nutrient supplementation. Comparisons on chemical compound degradation by the tested microbes suggested that organic acids in HTLWW were highly degradable, followed by phenolic compounds. N-heterocyclic compounds were resistant to biodegradation and were removed by 38%. This study demonstrated pure culture biological treatment of sludge HTLWW with diverse types of microorganisms, which would guide the culture development and bioprocess parameter optimization for treating HTLWW of different compositions.
Collapse
Affiliation(s)
- Meicen Liu
- Department of Grain Science and Industry, Kansas State University, 1980 Kimball Avenue, Manhattan, KS, 66506, USA.
| | - Chandan Mahata
- Department of Biological Systems Engineering, Virginia Tech, 1230 Washington St. SW, Blacksburg, VA, 24061, USA
| | - Zhiwu Wang
- Department of Biological Systems Engineering, Virginia Tech, 1230 Washington St. SW, Blacksburg, VA, 24061, USA
| | - Sandeep Kumar
- Department of Civil and Environmental Engineering, Old Dominion University, Norfolk, VA, 23529, USA
| | - Yi Zheng
- Department of Grain Science and Industry, Kansas State University, 1980 Kimball Avenue, Manhattan, KS, 66506, USA.
| |
Collapse
|
5
|
Adedeji OM, Jahan K. Removal of pollutants from aqueous product of Co-hydrothermal liquefaction: Adsorption and isotherm studies. CHEMOSPHERE 2023; 321:138165. [PMID: 36804248 DOI: 10.1016/j.chemosphere.2023.138165] [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: 01/10/2023] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Hydrothermal liquefaction (HTL) is an attractive technology for the conversion of wet waste into biofuel and co-HTL has been touted to increase the quality of products. However, the recovery of energy from wastewater byproduct called aqueous co-product (ACP) is limited due to the presence of toxic inhibitory substances. Adsorption has been countenanced to remove these toxic compounds but there has not been a distinct comprehensive adsorption isotherm study to explain the interaction between the adsorbate molecules and the adsorbent sites. This study investigated the sorption mechanism of oxidizable reducing pollutants measured as chemical oxygen demand (COD); heavy metals (boron and copper); and phenols from ACP samples obtained from co-HTL of brewery trub (BT), and primary sludge (PS) onto granular and powdered activated carbon (GAC and PAC). Conventional isotherm models such as Langmuir, Freundlich, Temkin, and Dubinin-Radushkevich were used for data analysis. Results indicated that the adsorptive capacity (qe) of PAC was greater than GAC in COD adsorption (BT-1947 > 234; BTPS-617 > 245; PS-289 > 207), boron adsorption (BTPS-70 > 7; PS-53 > 49), copper adsorption (BT-5 > 1; BTPS-3 > 2; PS-1.3 > 1.1) and phenol adsorption (BT-1340 > 356; BTPS-1587 > 253; PS-460 > 245) in mg/g, μg/g, μg/g, and μg/g respectively. Comparing the adsorption of pollutants onto PAC and GAC, this study observed that PAC followed the Temkin, and Dubinin-Radushkevich models in the adsorption of the four pollutants while GAC followed the Freundlich and Langmuir models in the adsorption of phenol and copper, and Temkin, and Dubinin-Radushkevich in the adsorption of COD and boron. This study proved that combining feedstock in HTL (co-HTL) does not only change the quality of the ACP but also changes the dynamics of the adsorption isotherms. The Free Energy Change (ΔG0) result showed a spontaneous reaction in the adsorption of copper and phenol. This study presents an adsorption equilibrium information for the interpretation of adsorption isotherms for the overall improvement of adsorption mechanism pathways and the effective design of adsorption systems for the treatment of ACP.
Collapse
Affiliation(s)
- Oluwayinka M Adedeji
- Department of Civil and Environmental Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA.
| | - Kauser Jahan
- Department of Civil and Environmental Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, NJ, 08028, USA
| |
Collapse
|
6
|
Anaerobic membrane bioreactor-based treatment of poultry slaughterhouse wastewater: Microbial community adaptation and antibiotic resistance gene profiles. Biochem Eng J 2023. [DOI: 10.1016/j.bej.2023.108847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
7
|
Rout PR, Goel M, Pandey DS, Briggs C, Sundramurthy VP, Halder N, Mohanty A, Mukherjee S, Varjani S. Technological advancements in valorisation of industrial effluents employing hydrothermal liquefaction of biomass: Strategic innovations, barriers and perspectives. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120667. [PMID: 36395914 DOI: 10.1016/j.envpol.2022.120667] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 10/26/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
Hydrothermal liquefaction (HTL) is identified as a promising thermochemical technique to recover biofuels and bioenergy from waste biomass containing low energy and high moisture content. The wastewater generated during the HTL process (HTWW) are rich in nutrients and organics. The release of the nutrients and organics enriched HTWW would not only contaminate the water bodies but also lead to the loss of valued bioenergy sources, especially in the present time of the energy crisis. Thus, biotechnological as well as physicochemical treatment of HTWW for simultaneous extraction of valuable resources along with reduction in polluting substances has gained significant attention in recent times. Therefore, the treatment of wastewater generated during the HTL of biomass for reduced environmental emission and possible bioenergy recovery is highlighted in this paper. Various technologies for treatment and valorisation of HTWW are reviewed, including anaerobic digestion, microbial fuel cells (MFC), microbial electrolysis cell (MEC), and supercritical water gasification (SCWG). This review paper illustrates that the characteristics of biomass play a pivotal role in the selection process of appropriate technology for the treatment of HTWW. Several HTWW treatment technologies are weighed in terms of their benefits and drawbacks and are thoroughly examined. The integration of these technologies is also discussed. Overall, this study suggests that integrating different methods, techno-economic analysis, and nutrient recovery approaches would be advantageous to researchers in finding way for maximising HTWW valorisation along with reduced environmental pollution.
Collapse
Affiliation(s)
- Prangya Ranjan Rout
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, India
| | - Mukesh Goel
- Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield, UK
| | - Daya Shankar Pandey
- Center for Rural Development and Innovative Sustainable Technology, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Caitlin Briggs
- Department of Engineering and Mathematics, Sheffield Hallam University, Sheffield, UK
| | | | - Nirmalya Halder
- Department of Biotechnology, Thapar Institute of Engineering and Technology, Patiala, Punjab, India
| | - Anee Mohanty
- Department of Biotechnology, Dr. B. R. Ambedkar National Institute of Technology Jalandhar, Punjab, India
| | | | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, 382 010, Gujarat, India.
| |
Collapse
|
8
|
Saravanan A, Deivayanai VC, Senthil Kumar P, Rangasamy G, Varjani S. CO 2 bio-mitigation using genetically modified algae and biofuel production towards a carbon net-zero society. BIORESOURCE TECHNOLOGY 2022; 363:127982. [PMID: 36126842 DOI: 10.1016/j.biortech.2022.127982] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 06/15/2023]
Abstract
CO2 sequestration carried by biological methodologies shows enhanced potential and has the advantage that biomass produced from the captured CO2 can be used for different applications. Bio-mitigation of carbons through a micro-algal system addresses a promising and feasible option. This review mostly focused on the role of algae, particular mechanisms, bioreactors in algae cultivation, and genetically modified algae in CO2 fixation and energy generation systems. A combination of CO2 bio-mitigation and biofuel production might deliver an extremely promising alternative to current CO2 mitigation systems. Bio mitigation in which the excess carbon is captured and bio fixation which the carbon is captured by algae or autotrophs and used for producing biofuel. This review revealed that steps for biofuel production from algae include factors affecting, harvesting techniques, oil extraction and transesterification. This review helps environmentalists and researchers to assess the effect of algae-based biorefinery on the green environment.
Collapse
Affiliation(s)
- A Saravanan
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - V C Deivayanai
- Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai 602105, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai 603110, India.
| | - Gayathri Rangasamy
- University Centre for Research and Development & Department of Civil Engineering, Chandigarh University, Gharuan, Mohali, Punjab 140413, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar 382 010, Gujarat, India
| |
Collapse
|
9
|
Gao Y, Guo L, Jin C, Zhao Y, Gao M, She Z, Wang G. Metagenomics and network analysis elucidating the coordination between fermentative bacteria and microalgae in a novel bacterial-algal coupling reactor (BACR) for mariculture wastewater treatment. WATER RESEARCH 2022; 215:118256. [PMID: 35278913 DOI: 10.1016/j.watres.2022.118256] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/02/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
To achieve the goal of treating mariculture wastewater economically and efficiently, a novel bacterial-algal coupling reactor (BACR) integrating acidogenic fermentation and microalgae cultivation was firstly investigated for mariculture wastewater treatment. Volatile fatty acids (VFAs) generated in the dark chamber migrated into the photo chamber for microalgal utilization, which alleviated the pH drop and feedback inhibition of the acidogenic fermentation. The maximum dry cell weight (DCW) of microalgae was 1.46 g/L, and pollutants such as chemical oxygen demand (COD), ammonium (NH4+-N) and total phosphorus (TP) in the BACR were effectively removed under the mixotrophic culture condition. Furthermore, bacterial community profiles and functional genes in the BACR and single acidogenic fermentation reactor were identified. Compared with the single acidogenic fermentation reactor, most of the fermentative bacteria (e.g., Ruminococcus, Christensenellaceae R-7 group, Exiguobacterium, Pseudomonas and Levilinea) were enriched by the BACR. From the genetic perspective, the abundances of dominant genes (ackA, acs and atoD) associated with acetic, propionic and butyric acid production were greatly enhanced in the BACR. In the fatty acid biosynthesis pathway (ko00061), three kinds of high-abundance acetyl-CoA carboxylase genes and eight kinds of downstream functional genes were up-regulated in the BACR. Finally, based on co-occurrence network analysis, the coordination between fermentative bacteria and microalgae in the BACR was revealed. This study provided a deep insight into the advantage and potential of the BACR in mariculture wastewater treatment.
Collapse
Affiliation(s)
- Yedong Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; State Key Laboratory of Urban Water Resource and Environment (SKLUWRE), School of Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Liang Guo
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Environmental and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Chunji Jin
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Yangguo Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Mengchun Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Zonglian She
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Guangce Wang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| |
Collapse
|
10
|
Mao Z, Lin D, Yin M, Xu C, Xu J. Nano-Albumin Particles Loaded with miR-20a Inhibitor Targeting Met Protein to Reverse Proliferation of Intestinal Cancer Cells. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study explored miR-20a’s role in intestinal cancer cells. SW480 cell line was divided into control group, agonist group, inhibitor group, and negative control group, followed by analysis of cell proliferation, apoptosis, Met, Bad, and Bcl-2 protein expressions. Results showed
that miR-20a expression in the agonist group was the highest, followed by blank group and negative control group, and inhibitor group was lowest. S-phase and G2/M cell number from inhibitor group was lowest, and cell apoptosis rate was highest. However, the agonist group showed contrary changes.
There was no difference in G0/G1 phase cell number among the four groups (P > 0.05). Moreover, the expressions of Bad, Bcl-2, Met, Wnt, β-catenin, and p-Wnt in inhibitor group were all lower, while the expressions in agonist group were all high (P < 0.05). S-phase
and G2/M cell number in inhibitor group was lowest, while cell apoptosis was highest. The agonist group was opposite, with G0/G1 phase cells in each group showing no difference (P > 0.05). Wnt, β-catenin, and p-Wnt expressions were lowest in the inhibitor group, while
the agonist group was opposite. These results together showed that the miR-20a directly targeted and regulated Met protein. Finally, the miR-20a inhibited intestinal cancer cell proliferation mainly through inhibiting Wnt/β-catenin signaling activity.
Collapse
Affiliation(s)
- Zihan Mao
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Insititute, Shenyang, Liaoning, 110000, China
| | - Dapeng Lin
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Insititute, Shenyang, Liaoning, 110000, China
| | - Mingdi Yin
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Insititute, Shenyang, Liaoning, 110000, China
| | - Chao Xu
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Insititute, Shenyang, Liaoning, 110000, China
| | - Jian Xu
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Insititute, Shenyang, Liaoning, 110000, China
| |
Collapse
|
11
|
Li T, Hu Z, Yu S, Liu Z, Zhou X, Liu R, Liu S, Deng Y, Li S, Chen H, Chen Z. DNA Templated Silver Nanoclusters for Bioanalytical Applications: A Review. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Due to their unique programmability, biocompatibility, photostability and high fluorescent quantum yield, DNA templated silver nanoclusters (DNA Ag NCs) have attracted increasing attention for bioanalytical application. This review summarizes the recent developments in fluorescence
properties of DNA templated Ag NCs, as well as their applications in bioanalysis. Finally, we herein discuss some current challenges in bioanalytical applications, to promote developments of DNA Ag NCs in biochemical analysis.
Collapse
Affiliation(s)
- Taotao Li
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Zhiyuan Hu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Songlin Yu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Zhanjun Liu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Xiaohong Zhou
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Rong Liu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Shiquan Liu
- Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China
| | - Yan Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Song Li
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Hui Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhu Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China
| |
Collapse
|
12
|
Xu Y, Lu J, Wang Y, Yuan C, Liu Z. Construct a novel anti-bacteria pool from hydrothermal liquefaction aqueous family. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127162. [PMID: 34537650 DOI: 10.1016/j.jhazmat.2021.127162] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 08/23/2021] [Accepted: 09/04/2021] [Indexed: 06/13/2023]
Abstract
Hydrothermal liquefaction aqueous phase (HTL-AP) is complex and toxic, which severely hinders the scale-up of HTL technology. Distinguished from degrading organics and extracting chemical energy or nutrients from HTL-AP via biological fermentation or algae cultivation, here, we propose an innovative strategy to valorize the HTL-AP as a powerful anti-bacterial pool. Six model ingredients, i.e. lipids, cellulose, xylan, lignin, protein and the mixture were employed, to obtain a thirty-HTL-AP pool for characteristics database construction. We found that the xylan group at 230 °C on Escherichia coli (E. coli) and at 200 °C on Staphylococcus aureus (S. aureus) exhibited the highest anti-bacterial activities via plate experiments, nearly equal to 100 μg/ml streptomycin which far exceeded the working concentration of streptomycin (10-50 μg/ml). The liquid cultivation studies further revealed HTL-APs from the mixture feedstock, protein, real biomass microalgae and cornstalk had more stable anti-bacterial activities as chemically stable substances. Interestingly, the Gram-positive strain S. aureus was more susceptible than the Gram-negative E. coli on the HTL-APs, probably owing to the outer selectively permeable membrane difference and the strong reducibility and acidity of HTL-APs. This study provides a new vision to seek the anti-bacterial potential of HTL aqueous, supporting further investigations on its molecular mechanism and new bactericide development.
Collapse
Affiliation(s)
- Yongdong Xu
- Laboratory of Environment-Enhancing Energy (E2E), College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Jianwen Lu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Yueyao Wang
- Laboratory of Environment-Enhancing Energy (E2E), College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Changbin Yuan
- Laboratory of Environment-Enhancing Energy (E2E), College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Zhidan Liu
- Laboratory of Environment-Enhancing Energy (E2E), College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
| |
Collapse
|
13
|
Yang J, van Lier JB, Li J, Guo J, Fang F. Integrated anaerobic and algal bioreactors: A promising conceptual alternative approach for conventional sewage treatment. BIORESOURCE TECHNOLOGY 2022; 343:126115. [PMID: 34655782 DOI: 10.1016/j.biortech.2021.126115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Conventional sewage treatment applying activated sludge processes is energy-intensive and requires great financial input, hampering widespread implementation. The introduction of anaerobic membrane bioreactors (AnMBR) followed by an algal reactor growing species of commercial interest, may present an alternative, contributing to the envisaged resource recovery at sewage treatment plants. AnMBRs can be applied for organic matter removal with energy self-sufficiency, provided that effective membrane fouling management is applied. Haematococcus pluvialis, an algal species with commercial value, can be selected for ammonium and phosphate removal. Theoretical analysis showed that good pollutant removal, positive financial output, as well as a significant reduction in the amount of hazardous activated sludge can be achieved by applying the proposed process, showing interesting advantages over current sewage treatment processes. Microbial contamination to H. pluvialis is a challenge, and technologies for preventing the contamination during continuous sewage treatment need to be applied.
Collapse
Affiliation(s)
- Jixiang Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 401174, China
| | - Jules B van Lier
- Faculty of Civil Engineering and Geosciences, Department of Water Management, Section of Sanitary Engineering, Delft University of Technology, Delft, The Netherlands.
| | - Jian Li
- School of Biological and Chemical Engineering, Panzhihua University, Panzhihua, China
| | - Jinsong Guo
- College of Environment and Ecology, Chongqing University, Chongqing, China
| | - Fang Fang
- College of Environment and Ecology, Chongqing University, Chongqing, China
| |
Collapse
|
14
|
Gao Y, Guo L, Liao Q, Zhang Z, Zhao Y, Gao M, Jin C, She Z, Wang G. Mariculture wastewater treatment with Bacterial-Algal Coupling System (BACS): Effect of light intensity on microalgal biomass production and nutrient removal. ENVIRONMENTAL RESEARCH 2021; 201:111578. [PMID: 34228951 DOI: 10.1016/j.envres.2021.111578] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/03/2021] [Accepted: 06/20/2021] [Indexed: 06/13/2023]
Abstract
Mariculture wastewater generated from the mariculture industry has increased public concern due to its impact on the sustainability of aquatic environments and aquaculture practices. Herein, the Bacterial-Algal Coupling System was applied for mariculture wastewater treatment. Microalgae growth in heterotrophy and mixotrophy (2000-8000 lux) was first compared. The best microalgal growth and nutrient removal were obtained at 5000 lux, where biomass productivity of microalgae was 0.465 g L-1 d-1, and 98.1% of chemical oxygen demand, 70.7% of ammonia-nitrogen, and 90.0% of total phosphorus were removed. To further understand the nutrient removal through microalgae cultivation, the enzyme activities involved in the Calvin cycle and the Tricarboxylic Acid cycle at different light intensities were determined. Under mixotrophic cultivation, there was a coordination between photosynthesis and heterotrophic metabolism in the agal cell, which resulted in a high algal biomass production and removal efficiency of nutrients. This study provided a novel insight into the bioremediation of mariculture wastewater and microalgae cultivation.
Collapse
Affiliation(s)
- Yedong Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Liang Guo
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China; Key Laboratory of Marine Environmental and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Qianru Liao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Zengshuai Zhang
- Department of Environmental Engineering, Technical University of Denmark, Kgs. Lyngby, DK-2800, Denmark
| | - Yangguo Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Mengchun Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Chunji Jin
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Zonglian She
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Guangce Wang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
| |
Collapse
|
15
|
Rajagopal R, Mousavi SE, Goyette B, Adhikary S. Coupling of Microalgae Cultivation with Anaerobic Digestion of Poultry Wastes: Toward Sustainable Value Added Bioproducts. Bioengineering (Basel) 2021; 8:bioengineering8050057. [PMID: 34064468 PMCID: PMC8147949 DOI: 10.3390/bioengineering8050057] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/24/2021] [Accepted: 04/29/2021] [Indexed: 11/16/2022] Open
Abstract
Third generation biofuels and high-value bioproducts produced from microalgal biomass have been considered promising long-term sustainable alternatives for energy and/or food production, potentially decreasing greenhouse gas emissions. Microalgae as a source of biofuels have been widely studied for bioethanol/biodiesel/biogas production. However, critical research is needed in order to increase the efficiency of microalgae production from high-N agri-waste, not only for biofuels but also for bio-based products, and thus enhance its commercial viability. The growth in the poultry industry has led to increased chicken manure (CM), which are rich in ammonia, phosphate, potassium, and other trace elements. These constituents could be used as nutrients for growing microalgae. In this research, a two-stage (liquid-solid) anaerobic digester treating CM at 20 ± 1 °C was performed, and liquid digestate (leachate) obtained after the digestion process was used as a substrate to grow the microalgal strain Chlorella vulgaris CPCC 90. Considering the high-N content (NH3-N: 5314 mg/L; TKN: 6197 mg/L) in liquid digestate, different dilutions were made, using distilled water to obtain viz. 10%, 30%, 50%, 70%, 90%, and 100% of the digestate concentrations for the microalgae cultivation. Preliminary results showed that Chlorella vulgaris CPCC 90 was able to grow and utilize nutrients from a 10% diluted CM digestate. Future research is underway to enhance microalgal growth at higher digestate concentrations and to optimize the use of microalgae/microalgae-bacteria consortia for better adaptation to high-N content wastes. An AD-microalgae coupling scenario has been proposed for the circulation bioeconomy framework.
Collapse
|
16
|
You X, Zhang Z, Guo L, Liao Q, Wang Y, Zhao Y, Jin C, Gao M, She Z, Wang G. Integrating acidogenic fermentation and microalgae cultivation of bacterial-algal coupling system for mariculture wastewater treatment. BIORESOURCE TECHNOLOGY 2021; 320:124335. [PMID: 33157451 DOI: 10.1016/j.biortech.2020.124335] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 10/24/2020] [Accepted: 10/24/2020] [Indexed: 06/11/2023]
Abstract
In this study, Bacterial-Algal Coupling System, a method integrated acidogenic fermentation (AF) and microalgae cultivation, was applied to the mariculture wastewater (MW) treatment. The MW was acidogenic fermented at different initial pH (4.0-10.0), and different dilution rate (5%-20%) of AF effluent was used for Chlorella vulgaris cultivation. The results showed that the maximum biomass production (5.6 g/L) of microalgae was obtained with 10% AF effluent. Ammonium, phosphate and volatile fatty acids could be metabolized by microalgae. More specifically, acetic acid and propionic acid were utilized prior to butyric acid and valeric acid. To better understand the synergy of heterotrophic metabolism and photosynthesis, the activities of Rubisco and citrate synthase were revealed to provide additional insight for nutrients recovery from MW by mixotrophic cultivation of microalgae.
Collapse
Affiliation(s)
- Xuting You
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zengshuai Zhang
- Department of Environmental Engineering, Technical University of Denmark, Kgs Lyngby, DK-2800, Denmark
| | - Liang Guo
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environmental and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
| | - Qianru Liao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Yi Wang
- Department of Biosystems Engineering, Auburn University, Auburn, AL 36849, United States
| | - Yangguo Zhao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Chunji Jin
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Mengchun Gao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Zonglian She
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Guangce Wang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
| |
Collapse
|
17
|
Leng L, Zhang W, Leng S, Chen J, Yang L, Li H, Jiang S, Huang H. Bioenergy recovery from wastewater produced by hydrothermal processing biomass: Progress, challenges, and opportunities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:142383. [PMID: 33113702 DOI: 10.1016/j.scitotenv.2020.142383] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 06/11/2023]
Abstract
Hydrothermal carbonization (HTC)/liquefaction (HTL)/gasification (HTG) are promising processes for biofuel production from biomass containing high moisture. However, wastewater, the aqueous phase (AP) byproduct from these hydrothermal processes, is inevitably produced in large amounts. The AP contains >20% of the biomass carbon, and the total organic carbon in AP is as high as 10-20 g/L. The treatment and utilization of AP are becoming a bottleneck for the industrialization of hydrothermal technologies. The major challenges are the presence of various inhibitory substances and the high complexity of AP. Bioenergy recovery from AP has attracted increasing interest. In the present review, the compositions and characteristics of AP are first presented. Then, the progress in recovering bioenergy from AP by recirculation as the reaction solvent, anaerobic digestion (AD), supercritical water gasification (SCWG), microbial fuel cell (MFC), microbial electrolysis cell (MEC), and microalgae cultivation is discussed. Recirculation of AP as reaction solvent is preferable for AP from biomass with relatively low moisture; AD, MFC/MEC, and microalgae cultivation are desirable for the treatment of AP produced from processing biomass with low lignin content at relatively low temperatures; SCWG is widely applicable but is energy-intensive. Finally, challenges and corresponding strategies are proposed to promote the development of AP valorization technologies. Comprehensive analysis of AP compositions, clarification of the mechanisms of valorization processes, valorization process integration detoxification of AP, polycultures and co-processing of AP with other waste, enhancement in pollutant removal, scaling-up performance, and the techno-economic analysis and life-cycle assessment of valorization systems are promising directions in future investigations.
Collapse
Affiliation(s)
- Lijian Leng
- School of Energy Science and Engineering, Central South University, Changsha 410083, China.
| | - Weijin Zhang
- School of Energy Science and Engineering, Central South University, Changsha 410083, China
| | - Songqi Leng
- School of Resources, Environmental & Chemical Engineering and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, China
| | - Jie Chen
- School of Resources, Environmental & Chemical Engineering and Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Nanchang University, Nanchang, China
| | - Lihong Yang
- School of Energy Science and Engineering, Central South University, Changsha 410083, China
| | - Hailong Li
- School of Energy Science and Engineering, Central South University, Changsha 410083, China.
| | - Shaojian Jiang
- School of Energy Science and Engineering, Central South University, Changsha 410083, China
| | - Huajun Huang
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China.
| |
Collapse
|
18
|
Zhao F, Li Z, Han X, Zhou X, Zhang Y, Jiang S, Yu Z, Zhou X, Liu C, Chu H. The interaction between microalgae and membrane surface in filtration by uniform shearing vibration membrane. ALGAL RES 2020. [DOI: 10.1016/j.algal.2020.102012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
19
|
Couto E, Calijuri ML, Assemany P. Biomass production in high rate ponds and hydrothermal liquefaction: Wastewater treatment and bioenergy integration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:138104. [PMID: 32408433 DOI: 10.1016/j.scitotenv.2020.138104] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/16/2020] [Accepted: 03/20/2020] [Indexed: 06/11/2023]
Abstract
Against the worldwide energy crisis and climate change, new forms of energy generation have been investigated. Among the possibilities, microalgae are considered potential feedstock for biofuels production. However, there are still important challenges to overcome. In this context, the integration of biomass cultivation and the treatment of different types of wastewater can represent a source of nutrients and water, with the additional benefit of reducing the discharge of pollutant loads into water bodies. The wastewater grown biomass is composed by a microorganism consortium. These microorganisms can develop important symbiotic relationships for the optimization of biomass production. However, the success of algal biomass cultivation in effluents also involves the development of efficient reactors, which ranges from design criteria to operational parameters. High rate ponds are the most suitable reactors for such a purpose, within the context of a wastewater treatment plant. In this reactor, the addition of CO2 is an important parameter for pH control and, consequently, will influence nutrient assimilation. Another relevant operational parameter is the pond depth, which will have a major role in radiation availability along the water column. With respect to the energy use of the biomass, hydrothermal liquefaction (HTL) represents an interesting alternative for wastewater grown biomass, since the process does not require complete drying of the biomass, its bio-oil production efficiency is not necessarily attached to the lipid content and may present a positive energy balance. In addition, the possibility of using the HTL by-products, especially the water soluble products, in the context of a biorefinery, represents a route for nutrient recycling, residue minimization, and cost reduction.
Collapse
Affiliation(s)
- Eduardo Couto
- Federal Universityof Itajubá, Campus Itabira (Universidade Federal de Itajubá, Campus Itabira/Unifei), Intitute of Applied and Pure Sciences, Rua Irmã Ivone Drumond, 200, 35903-087 Itabira, MG, Brazil.
| | - Maria Lúcia Calijuri
- Federal University of Viçosa (Universidade Federal de Viçosa/UFV), Department of Civil Engineering, Environmental Engineering Group - nPA, Avenida PH Rolfs s/n, 36570-900 Viçosa, MG, Brazil.
| | - Paula Assemany
- Federal University of Lavras (Universidade Federal de Lavras/UFLA), Department of Water Resources and Sanitation, Campus Universitário, 37200-000 Lavras, MG, Brazil.
| |
Collapse
|
20
|
Wu W, Cheng LC, Chang JS. Environmental life cycle comparisons of pig farming integrated with anaerobic digestion and algae-based wastewater treatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 264:110512. [PMID: 32250920 DOI: 10.1016/j.jenvman.2020.110512] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/17/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
This article shows environmental life cycle comparisons of four scenarios of manure management systems (MMS) for the intensive pig farming systems in terms of materials, transport, energy, and emissions. The MMS scenarios are categorized by different combinations of outside storage, anaerobic mono-/co-digester, and algae-based wastewater treatment (AWWT), where the conventional MMS scenario merely uses the outside storage (Scenario 1) or adopts an integrated anaerobic mono-digester and the outside storage (Scenario 2). The nonconventional MMS scenario uses an integrated anaerobic mono-digester and AWWT process (Scenario 3), notably the harvested algae biomass is used to fully substitute a few ingredients of swine diets. Using life cycle assessment (LCA) methodology, it is validated that Scenario 3 reduces the total environmental impact by 35.5%-40% as compared to Scenarios 1 and 2 and increases the nutrient recovery of nitrogen ratio from 58% (Scenario 1) to 81%. Scenario 4 uses an integrated anaerobic co-digester and AWWT process, where the harvested algae biomass is partially recycled to substitute the partial ingredients of swine diets and the remaining part is fed into the anaerobic co-digester for improving the biogas yield, to increase the algae biomass yield by 49% and also enhance the cogeneration of heat and power by 26.6% and 7%, respectively, as compared to Scenario 3.
Collapse
Affiliation(s)
- Wei Wu
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan.
| | - Liang-Chiung Cheng
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Jo-Shu Chang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, 70101, Taiwan; Department of Chemical and Materials Engineering, College of Engineering, Tunghai University, Taichung 407, Taiwan
| |
Collapse
|
21
|
Anwar MN, Fayyaz A, Sohail NF, Khokhar MF, Baqar M, Yasar A, Rasool K, Nazir A, Raja MUF, Rehan M, Aghbashlo M, Tabatabaei M, Nizami AS. CO 2 utilization: Turning greenhouse gas into fuels and valuable products. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 260:110059. [PMID: 32090808 DOI: 10.1016/j.jenvman.2019.110059] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 12/23/2019] [Accepted: 12/31/2019] [Indexed: 05/08/2023]
Abstract
This study critically reviews the recent developments and future opportunities pertinent to the conversion of CO2 as a potent greenhouse gas (GHG) to fuels and valuable products. CO2 emissions have reached an alarming level of around 410 ppm and have become the primary driver of global warming and climate change leading to devastating events such as droughts, hurricanes, torrential rains, floods, tornados and wildfires across the world. These events are responsible for thousands of deaths and have adversely affected the economic development of many countries, loss of billions of dollars, across the globe. One of the promising choices to tackle this issue is carbon sequestration by pre- and post-combustion processes and oxyfuel combustion. The captured CO2 can be converted into fuels and valuable products, including methanol, dimethyl ether (DME), and methane (CH4). The efficient use of the sequestered CO2 for the desalinization might be critical in overcoming water scarcity and energy issues in developing countries. Using the sequestered CO2 to produce algae in combination with wastewater, and producing biofuels is among the promising strategies. Many methods, like direct combustion, fermentation, transesterification, pyrolysis, anaerobic digestion (AD), and gasification, can be used for the conversion of algae into biofuel. Direct air capturing (DAC) is another productive technique for absorbing CO2 from the atmosphere and converting it into various useful energy resources like CH4. These methods can effectively tackle the issues of climate change, water security, and energy crises. However, future research is required to make these conversion methods cost-effective and commercially applicable.
Collapse
Affiliation(s)
- M N Anwar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan.
| | - A Fayyaz
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - N F Sohail
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology Islamabad, Pakistan
| | - M F Khokhar
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology Islamabad, Pakistan
| | - M Baqar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - A Yasar
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - K Rasool
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University, Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - A Nazir
- Department of Environmental Science and Policy, Lahore School of Economics, Lahore, Pakistan
| | - M U F Raja
- Institute of Environmental Sciences and Engineering, National University of Sciences and Technology Islamabad, Pakistan
| | - M Rehan
- Center of Excellence in Environmental Studies (CEES), King Abdulaziz University, Jeddah, Saudi Arabia
| | - M Aghbashlo
- Department of Mechanical Engineering of Agricultural Machinery, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - M Tabatabaei
- Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA (UiTM), 40450, Shah Alam, Selangor, Malaysia; Biofuel Research Team (BRTeam), Karaj, Iran; Microbial Biotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education, and Extension Organization (AREEO), Karaj, Iran; Faculty of Mechanical Engineering, Ho Chi Minh City University of Transport, Ho Chi Minh City, Viet Nam
| | - A S Nizami
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| |
Collapse
|
22
|
Hao S, Ren S, Zhou N, Chen H, Usman M, He C, Shi Q, Luo G, Zhang S. Molecular composition of hydrothermal liquefaction wastewater from sewage sludge and its transformation during anaerobic digestion. JOURNAL OF HAZARDOUS MATERIALS 2020; 383:121163. [PMID: 31520934 DOI: 10.1016/j.jhazmat.2019.121163] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/19/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
Anaerobic digestion (AD) has shown potential to convert hydrothermal liquefaction wastewater (HTLWW) into biogas in previous studies. However, the identification of refractory components and further insights into the molecular transformations of organics in HTLWW are essential for developing more efficient AD processes. In this study, two HTLWWs were obtained from the temperature-derived hydrothermal liquefaction of sewage sludge at 170 ℃ and 320 ℃. Their molecular compositions, as well as their modifications in the subsequent AD process, were characterized using a suite of advanced molecular tools. The dissolved organic matter (DOM) in the high temperature-derived HTLWW was lower in molecular weight, less saturated, less oxidized, and enhanced in nitrogenous substances. During the AD process, most of the volatile compounds and low molecular weight (LMW) neutrals were removed, while biopolymers were the most refractory. Carboxylic-rich alicyclic molecules (CRAM), particularly those containing 3 to 5 N for low temperature-derived DOM and 1 to 3 N for high temperature-derived DOM, were resistant to anaerobic biodegradation. Meanwhile, compounds with fewer nitrogens and more carboxyl groups were preferentially produced. This molecular characterization of HTLWW-derived DOM and examination of its transformation during AD will contribute to the development of efficient methods for HTLWW treatment in the future.
Collapse
Affiliation(s)
- Shilai Hao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, Colorado, 80401, United States
| | - Shuang Ren
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Nan Zhou
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Huihui Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Muhammad Usman
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Chen He
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Quan Shi
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China
| | - Gang Luo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, 200092, China.
| |
Collapse
|
23
|
Usman M, Hao S, Chen H, Ren S, Tsang DCW, O-Thong S, Luo G, Zhang S. Molecular and microbial insights towards understanding the anaerobic digestion of the wastewater from hydrothermal liquefaction of sewage sludge facilitated by granular activated carbon (GAC). ENVIRONMENT INTERNATIONAL 2019; 133:105257. [PMID: 31675572 DOI: 10.1016/j.envint.2019.105257] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/06/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Hydrothermal liquefaction of sewage sludge to produce bio-oil and hydro-char unavoidably results in the production of high-strength organic wastewater (HTLWW). However, anaerobic digestion (AD) of HTLWW generally has low conversion efficiency due to the presence of complex and refractory organics. The present study showed that granular activated carbon (GAC) promoted the AD of HTLWW in continuous experiments, resulting in the higher methane yield (259 mL/g COD) compared to control experiment (202 mL/g COD). It was found that GAC increased the activities of both aceticlastic and hydrogenotrophic methanogens. The molecular transformation of organics in HTLWW was further analyzed. It was shown GAC promoted the degradation of soluble microbial by-products, fulvic- and humic-like substances as revealed by 3-dimensional fluorescence excitation-emission matrix (3D-EEM) analysis. Gas chromatography mass spectrometry (GC-MS) analysis showed that GAC resulted in the higher degradation of N-heterocyclic compounds, acids and aromatic compounds and less production of new organic species. Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS) analysis also showed that GAC promoted the degradation of nitrogenous organics. In addition, it was shown that GAC improved the removal of less oxidized, higher nitrogen content, and higher double bond equivalent (DBE) organic compounds. Microbial analysis showed that GAC not only increased the microbial concentration, but also enriched more syntrophic bacteria (e.g., Syntrophorhabdus and Synergistes), which were capable of degrading a wide range of different organics including nitrogenous and aromatic organics. Furthermore, profound effects on the methanogens and the enrichment of Methanothrix instead of Methanosarcina were observed. Overall, the present study revealed the molecular transformation and microbial mechanism in the AD of HTLWW with the presence of GAC.
Collapse
Affiliation(s)
- Muhammad Usman
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Shilai Hao
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401, United States
| | - Huihui Chen
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Shuang Ren
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Sompong O-Thong
- Department of Biology, Faculty of Science, Thaksin University, Phathalung, 93110, Thailand
| | - Gang Luo
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| | - Shicheng Zhang
- Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
| |
Collapse
|
24
|
Zhao XC, Tan XB, Yang LB, Liao JY, Li XY. Cultivation of Chlorella pyrenoidosa in anaerobic wastewater: The coupled effects of ammonium, temperature and pH conditions on lipids compositions. BIORESOURCE TECHNOLOGY 2019; 284:90-97. [PMID: 30927652 DOI: 10.1016/j.biortech.2019.03.117] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/21/2019] [Accepted: 03/22/2019] [Indexed: 06/09/2023]
Abstract
Anaerobic wastewater potentially was an ideal medium for cultivating microalgae. The coupled effect of ammonium, temperature and pH on lipids accumulation was a core issue during algal culture using anaerobic wastewater. Therefore, their combined effects on Chlorella pyrenoidosa culture and lipids accumulation in anaerobic effluent were investigated. Free ammonia induced from the rising pH and temperature inhibited algal growth, but significantly promoted lipid accumulation. The highest lipids content reached 30.2% when pH rose to 8.3-8.5 (25 °C, ammonium 280 mg/L), which was 1.6-fold higher than that under neutral condition. Moreover, the percentage of unsaturated fatty acids (un-SFAs) increased to 74.8-77.9% at pH 8.3-8.5, whereas it was only 56.1-58.9% under neutral condition. The C18:2 and C18:3 dominated the un-SFAs increase at high pH, typically the percentage of C18:3 increased by 74.5-153.1%. This study provides a potential way for lipid accumulation in algal culture using anaerobic wastewater.
Collapse
Affiliation(s)
- Xian-Chao Zhao
- College of Urban and Environment Sciences, Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou City, Hunan Province 412007, China
| | - Xiao-Bo Tan
- College of Urban and Environment Sciences, Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou City, Hunan Province 412007, China.
| | - Li-Bin Yang
- College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Jian-Yu Liao
- College of Urban and Environment Sciences, Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou City, Hunan Province 412007, China
| | - Xiao-Yong Li
- College of Urban and Environment Sciences, Hunan Provincial Key Laboratory of Comprehensive Utilization of Agricultural and Animal Husbandry Waste Resources, Hunan University of Technology, 88 Taishan Road, Zhuzhou City, Hunan Province 412007, China
| |
Collapse
|
25
|
Li M, Si B, Zhang Y, Watson J, Aierzhati A. Reduce recalcitrance of cornstalk using post-hydrothermal liquefaction wastewater pretreatment. BIORESOURCE TECHNOLOGY 2019; 279:57-66. [PMID: 30711753 DOI: 10.1016/j.biortech.2019.01.095] [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: 11/25/2018] [Revised: 01/19/2019] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
Hydrothermal pretreatment (HTP) using an acidic catalyst is known to be effective for reducing lignocellulosic biomass recalcitrance. Post-hydrothermal liquefaction wastewater (PHW) from hydrothermal liquefaction of swine manure contains a large fraction of organic acids and thus was introduced to improve the HTP of cornstalk in this study. The response surface methodology was performed to optimize operating parameters of HTP for preserving structural polysaccharides while removing the barrier substances. A remarkable co-extraction of cell wall polymers was observed during PHW-catalyzed HTP at 172 °C for 88 min. The analysis of particle size, crystalline cellulose, the degree of polymerization (DP), mole number (MN) and SEM suggested that the co-extraction effect could distinctively alter lignocellulosic structures associated with recalcitrance and thus accelerate biomass saccharification. Additionally, the biodegradability of PHW was improved after HTP as a result of balanced nutrients and increased acids and sugars suitable for biogas production via anaerobic fermentation.
Collapse
Affiliation(s)
- Meng Li
- College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China; National Energy R&D Center for Non-Food Biomass, China Agricultural University, Beijing 100193, China; Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Buchun Si
- College of Water Resource and Civil Engineering, China Agricultural University, Beijing 100193, China; Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yuanhui Zhang
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Jamison Watson
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Aersi Aierzhati
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| |
Collapse
|
26
|
Treatment of Post-Hydrothermal Liquefaction Wastewater (PHWW) for Heavy Metals, Nutrients, and Indicator Pathogens. WATER 2019. [DOI: 10.3390/w11040854] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Recycling post-hydrothermal liquefaction wastewater (PHWW) may allow the use of nutrients in the aqueous phase that may otherwise go unused. PHWW is an attractive option for use as fertilizer in systems like crop production. However, there are potential contaminants in the PHWW that may inhibit crop growth or pose a food safety risk. This study investigated the concentrations of heavy metals and nutrients in the PHWW, as well as the presence of indicator pathogens. In addition, four different water treatment methods were used: (1) dilution of raw PHWW, (2) sand filtration after dilution, (3) sand and carbon filtration after dilution, and (4) reverse osmosis after dilution. Our results indicate that the concentrations of cadmium, lead, and arsenic in raw PHWW were well below the maximum recommended concentrations set by the US Environmental Protection Agency (US EPA) for Water Reuse. In addition, the treatment methods in this study achieved percent removals ranging from 82–100% for cadmium, 99–100% for mercury, 75–99.5% for lead, and 71–99% for arsenic. Nitrogen in raw PHWW was predominantly in the total N form, preventing it from being accessible to plants. After nitrification was induced, the concentration of NO3 + NO2 increased by 1.75 mg/L in the untreated 5% PHWW mixture, but remained unchanged or decreased for all other treatments and mixtures. There were no E. coli or coliform colonies detected in the raw PHWW, or in any PHWW mixtures. All PHWW mixtures with and without treatment are within US EPA guidelines for metals for irrigation water reuse. However, fertilizer supplementation may be required for PHWW to be suitable for crop production, as the low concentrations of NO3 + NO2 may prove challenging for growing crops.
Collapse
|
27
|
Gu Y, Zhang X, Deal B, Han L. Biological systems for treatment and valorization of wastewater generated from hydrothermal liquefaction of biomass and systems thinking: A review. BIORESOURCE TECHNOLOGY 2019; 278:329-345. [PMID: 30723025 DOI: 10.1016/j.biortech.2019.01.127] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/24/2019] [Accepted: 01/26/2019] [Indexed: 06/09/2023]
Abstract
Hydrothermal liquefaction (HTL) is one of the most promising platforms to valorize diverse biomass. Yet, a large amount of wastewater is produced containing a large amount of recalcitrant substances. Valorization of the refractory wastewater by biological systems to recapture organic matter and nutrients is not only clearly beneficial for the environment but also good for energy recovery. To this end, this study reviews the valorization of HTL wastewater via biological systems from many points of view, starting with the brief characterization of wastewater derived from HTL of diverse biomass. The fundamentals, pros and cons, and the most recent outcomes of numerous biological systems are comprehensively demonstrated with emphasis on their combinations. We then use a systems-thinking concept to shed light on a procedural model exhibiting a new perspective to consolidate the utilization of these systems. Finally, this review elucidates the future perspectives of HTL wastewater valorization.
Collapse
Affiliation(s)
- Yexuan Gu
- Department of Landscape Architecture, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
| | - Xuesong Zhang
- Illinois Sustainable Technology Center, University of Illinois at Urbana-Champaign, 1 Hazelwood Drive, Champaign, IL 61820, USA; Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China.
| | - Brian Deal
- Department of Landscape Architecture, University of Illinois at Urbana-Champaign, Champaign, IL 61820, USA
| | - Lujia Han
- Laboratory of Biomass and Bioprocessing Engineering, College of Engineering, China Agricultural University, Beijing 100083, China
| |
Collapse
|
28
|
Si B, Watson J, Aierzhati A, Yang L, Liu Z, Zhang Y. Biohythane production of post-hydrothermal liquefaction wastewater: A comparison of two-stage fermentation and catalytic hydrothermal gasification. BIORESOURCE TECHNOLOGY 2019; 274:335-342. [PMID: 30529481 DOI: 10.1016/j.biortech.2018.11.095] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/25/2018] [Accepted: 11/26/2018] [Indexed: 06/09/2023]
Abstract
Developing efficient methods to recover energy from post-hydrothermal liquefaction wastewater (PHW) is critical for scaling up hydrothermal liquefaction (HTL) technology. Here we evaluated two-stage fermentation (TF) and catalytic hydrothermal gasification (CHG) for biohythane production using PHW. A hydrogen yield of 29 mL·g-1 COD and methane yield of 254 mL·g-1 COD were achieved via TF. In comparison, a higher hydrogen yield (116 mL·g-1 COD) and lower methane yield (65 mL·g-1 COD) were achieved during CHG. Further, a techno-economic and sensitivity analysis was conducted. The capital cost and operating cost for TF varied with the different reactor systems. TF with high-rate reactors suggested its promising commercialized application as it had a lower minimum selling price (-0.71 to 2.59 USD per gallon of gasoline equivalent) compared with conventional fossil fuels under both the best and reference market conditions. Compared with TF, CHG was only likely to be profitable under the best case conditions.
Collapse
Affiliation(s)
- Buchun Si
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Jamison Watson
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Aersi Aierzhati
- Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Libin Yang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Zhidan Liu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
| | - Yuanhui Zhang
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment, Ministry of Agriculture, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| |
Collapse
|