1
|
Chakraborty D, Palani SG, Ghangrekar MM, Wong JWC. Reactive extraction of lactic and acetic acids from leached bed reactor leachate and process optimization by response surface methodology. ENVIRONMENTAL TECHNOLOGY 2023:1-16. [PMID: 36872877 DOI: 10.1080/09593330.2023.2186272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
The present work focused on extracting lactic and acetic acids from the leachate collected from leached bed reactor (LBR) during acidogenesis of food waste using the reactive extraction (RE) process. A wide range of diluents was screened either alone by physical extraction (PE) or in combination with extractants using RE to extract acids from the VFA mix. Aliquat 336-Butyl acetate/MIBK extractants in RE demonstrated higher distribution coefficients (k) and extraction yield (E %) than PE. The response surface methodology (RSM) was used to optimize the extraction of lactic and acetic acids from the synthetic acid mix, using three variables (extractant concentrations, solute/acid concentration and time). Consequently, these three variables were optimized for LBR leachate. The RE was promising, and extraction efficiencies of 65% (lactate), 75% (acetate), 86.2% (propionate) and almost 100% for butyrate and medium-chain fatty acids (MCFA) were achieved after 16 h of extraction. The RSM optimization predicted a maximum E % of 59.60% and 34.67% for lactate and acetate in 5.5 and 1.17 min, respectively. In the leachate experiment, an increase in E% and k was observed with increasing extractant concentration and lactate and acetate concentrations over time. Using a 1M reactive extractant mix and 1.25 and 12 g/L of solute concentrations, the maximum E % of acetate and lactate were 38.66% and 61.8% in 10 min. The results could contribute to developing a rapid in-situ product recovery system integrated with food waste acidogenesis for lactate and acetate recovery, contributing to the bio-economy.
Collapse
Affiliation(s)
- Debkumar Chakraborty
- Institute of Bioresource and Agriculture and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, People's Republic of China
- School of Environmental Science and Engineering, IIT Kharagpur, Kharagpur, India
| | - Sankar Ganesh Palani
- Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, India
| | | | - Jonathan W C Wong
- Institute of Bioresource and Agriculture and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, People's Republic of China
| |
Collapse
|
2
|
Chakraborty D, Chatterjee S, Althuri A, Palani SG, Venkata Mohan S. Sustainable enzymatic treatment of organic waste in a framework of circular economy. BIORESOURCE TECHNOLOGY 2023; 370:128487. [PMID: 36528180 DOI: 10.1016/j.biortech.2022.128487] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
Enzymatic treatment of food and vegetable waste (FVW) is an eco-friendly approach for producing industrially relevant value-added products. This review describes the sources, activities and potential applications of crucial enzymes in FVW valorization. The specific roles of amylase, cellulase, xylanase, ligninase, protease, pectinase, tannase, lipase and zymase enzymes were explained. The exhaustive list of value-added products that could be produced from FVW is presented. FVW valorization through enzymatic and whole-cell enzymatic valorization was compared. The note on global firms specialized in enzyme production reiterates the economic importance of enzymatic treatment. This review provides information on choosing an efficient enzymatic FVW treatment strategy, such as nanoenzyme and cross-linked based enzyme immobilization, to make the process viable, sustainable and cheaper. Finally, the importance of life cycle assessment of enzymatic valorization of FVW was impressed to prove this approach is a better option to shift from a linear to a circular economy.
Collapse
Affiliation(s)
- Debkumar Chakraborty
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India
| | - Sulogna Chatterjee
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Avanthi Althuri
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India; Department of Biotechnology, Indian Institute of Technology Hyderabad, Kandi, Sangareddy-502284, Telangana, India
| | - Sankar Ganesh Palani
- Environmental Biotechnology Laboratory, Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, Hyderabad Campus 500078, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences Lab, Department of Energy and Environmental Engineering, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
| |
Collapse
|
3
|
Agrawal A, Chaudhari PK, Ghosh P. Anaerobic digestion of fruit and vegetable waste: a critical review of associated challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:24987-25012. [PMID: 35781666 DOI: 10.1007/s11356-022-21643-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
The depletion of fossil fuels coupled with stringent environmental laws has encouraged us to develop sustainable renewable energy. Due to its numerous benefits, anaerobic digestion (AD) has emerged as an environment-friendly technology. Biogas generated during AD is primarily a mixture of CH4 (65-70%) and CO2 (20-25%) and a potent energy source that can combat the energy crisis in today's world. Here, an attempt has been made to provide a broad understanding of AD and delineate the effect of various operational parameters influencing AD. The characteristics of fruit and vegetable waste (FVW) and its feasibility as a potent substrate for AD have been studied. This review also covers traditional challenges in managing FVW via AD, the implementation of various bioreactor systems to manage large amounts of organic waste and their operational boundaries, microbial consortia involved in each phase of digestion, and various strategies to increase biogas production.
Collapse
Affiliation(s)
- Akanksha Agrawal
- Department of Chemical Engineering, National Institute of Technology, Raipur, C.G, India
| | | | - Prabir Ghosh
- Department of Chemical Engineering, National Institute of Technology, Raipur, C.G, India.
| |
Collapse
|
4
|
Wu L, Wei W, Liu X, Wang D, Ni BJ. Potentiality of recovering bioresource from food waste through multi-stage Co-digestion with enzymatic pretreatment. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 319:115777. [PMID: 35982572 DOI: 10.1016/j.jenvman.2022.115777] [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: 04/13/2022] [Revised: 07/15/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Food waste (FW) is not only a major social, nutritional and environmental issue, but also an underutilized resource with significant energy, which has not been fully explored currently. Considering co-digestion can adjust carbon to nitrogen ratio (C/N) of the feedstock and improve the synergetic interactions among microorganisms, anaerobic co-digestion (AnCoD) is then becoming an emerging approach to achieve higher energy recovery from FW while ensuring the stability of the system. To obtain higher economic gain from such biodegradable wastes, increasing attention has been paid on optimizing the system configuration or applying enzymatic hydrolysis before digesting FW. A better understanding on the potentiality of correlating enzymatic pretreatment and AnCoD operated in various system configuration would enhance the bioresource recovery from FW and increase revenue through treating this organic waste. Specifically, the biobased chemicals outputs from FW-related co-digestion system with different configuration were firstly compared in this review. A deep discussion concerning the challenges for achieving bioresources recovery from FW co-digestion systems with enzymatic pretreatment was then given. Recommendations for future studies regarding FW co-digestion were then proposed at last.
Collapse
Affiliation(s)
- Lan Wu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Wei Wei
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Xuran Liu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Dongbo Wang
- Key Laboratory of Environmental Biology and Pollution Control, College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
| | - Bing-Jie Ni
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW, 2007, Australia.
| |
Collapse
|
5
|
Two-phase anaerobic digestion of food waste: Effect of semi-continuous feeding on acidogenesis and methane production. BIORESOURCE TECHNOLOGY 2021; 346:126396. [PMID: 34822991 DOI: 10.1016/j.biortech.2021.126396] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/15/2021] [Accepted: 11/17/2021] [Indexed: 02/05/2023]
Abstract
In present investigation, effect of diverting acidogenic off-gas from leached bed reactor (LBR) to up-flow anaerobic sludge blanket (UASB) reactor during semi-continuous food waste (FW) anaerobic digestion was evaluated. In test LBR headspace pressure (3.3 psi) was maintained with intermittent headspace gas transfer into UASB. In control, same headspace pressure was maintained without gas transfer. The semi-continuous FW addition affected the characteristics and production of leachate in control and test LBR. The cumulative COD, total soluble products and methane yields were 1.26, 1.37 and 3 times higher in the test LBR than the control. The acetate and methane yields from test LBR were 697.8 g·kgVSadded-1 and 167.55 mL·gCOD-1feeding. Acidogenic gas transfer maintained low partial pressure of hydrogen and the hydrogen to carbon-di-oxide ratio in the headspace of LBR, which were thermodynamically favorable for microbial metabolism and concomitant high-rate production of acetate-rich volatile fatty acid and methane-rich biogas from FW.
Collapse
|
6
|
Towards Full Utilization of Biomass Resources: A Case Study on Industrial Hemp Residue and Spent Mushroom Substrate. Processes (Basel) 2021. [DOI: 10.3390/pr9071200] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
This was early-stage, proof-of-concept research on the full utilization of biomass resources. The current study considered industrial hemp residue (IHR) and spent mushroom substrate (SMS) to demonstrate the initial upstream steps towards the total valorization of biomass. Accordingly, different pretreatment methods such as autohydrolysis, thermal hydrolysis, and thermochemical hydrolysis methods were employed against individual and various mix ratios of IHR and SMS. To this end, raw materials, hydrolysates, and residual solids were analyzed to gain some insights, identify gaps, and suggest future research directions in this area. Implementation of the full utilization of biomass resources is, in fact, not only a matter of transforming the resources into valuable products, but it is also a plausible waste management strategy in the quest towards the development of a circular bioeconomy and sustainable future.
Collapse
|
7
|
Basumatary S, Das S, Kalita P, Goswami P. Effect of feedstock/water ratio on anaerobic digestion of cattle dung and vegetable waste under mesophilic and thermophilic conditions. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.biteb.2021.100675] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
8
|
Sharma P, Gaur VK, Sirohi R, Varjani S, Hyoun Kim S, Wong JWC. Sustainable processing of food waste for production of bio-based products for circular bioeconomy. BIORESOURCE TECHNOLOGY 2021; 325:124684. [PMID: 33493748 DOI: 10.1016/j.biortech.2021.124684] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 01/02/2021] [Accepted: 01/04/2021] [Indexed: 05/05/2023]
Abstract
Sustainable development of circular bioeconomy concept is only possible upon adopting potential advanced technologies for food waste valorization. This approach can simultaneously answer resources and environmental challenges incurred due to capital loss and greenhouse gases accumulation. Food waste valorization opens new horizons of economical growth, bringing waste as an opportunity feedstock for bio processes to synthesize biobased products from biological source in a circular loop. Advanced technologies like Ultrasound assisted extraction, Microwave assisted extraction, bioreactors, enzyme immobilization assisted extraction and their combination mitigates the global concern caused due to mismanagement of food waste. Food waste decomposition to sub-zero level using advanced techniques fabricates food waste into bio-based products like bioactive compounds (antioxidants, pigments, polysaccharides, polyphenols, etc.); biofuels (biodiesel, biomethane, biohydrogen); and bioplastics. This review abridges merits and demerits of various advanced techniques extended for food waste valorization and contribution of food waste in revenue generation as value added products.
Collapse
Affiliation(s)
- Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | - Vivek K Gaur
- Environmental Biotechnology Division, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research, Lucknow, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India
| | - Ranjna Sirohi
- Department of Postharvest Process and Food Engineering, GB Pant University of Agriculture and Technology, Pantnagar, India
| | - Sunita Varjani
- Gujarat Pollution Control Board, Gandhinagar, Gujarat 382 010, India.
| | - Sang Hyoun Kim
- Department of Chemical and Environmental Engineering, Yonsei University, Seoul, South Korea
| | - Jonathan W C Wong
- Institute of Bioresource and Agriculture, Hong Kong Baptist University, Hong Kong
| |
Collapse
|
9
|
Dhanya BS, Mishra A, Chandel AK, Verma ML. Development of sustainable approaches for converting the organic waste to bioenergy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 723:138109. [PMID: 32229385 DOI: 10.1016/j.scitotenv.2020.138109] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 03/09/2020] [Accepted: 03/20/2020] [Indexed: 05/22/2023]
Abstract
Dependence on fossil fuels such as oil, coal and natural gas are on alarming increase, thereby causing such resources to be in a depletion mode and a novel sustainable approach for bioenergy production are in demand. Successful implementation of zero waste discharge policy is one such way to attain a sustainable development of bioenergy. Zero waste discharge can be induced only through the conversion of organic wastes into bioenergy. Waste management is pivotal and considering its importance of minimizing the issue and menace of wastes, conversion strategy of organic waste is effectively recommended. Present review is concentrated on providing a keen view on the potential organic waste sources and the way in which the bioenergy is produced through efficient conversion processes. Biogas, bioethanol, biocoal, biohydrogen and biodiesel are the principal renewable energy sources. Different types of organic wastes used for bioenergy generation and its sources, anaerobic digestion-biogas production and its related process affecting parameters including fermentation, photosynthetic process and novel nano-inspired techniques are discussed. Bioenergy production from organic waste is associated with mitigation of lump waste generation and its dumping into land, specifically reducing all hazards and negativities in all sectors during waste disposal. A sustainable bioenergy sector with upgraded security for fuels, tackles the challenging climatic change problem also. Thus, intensification of organic waste conversion strategies to bioenergy, specially, biogas and biohydrogen production is elaborated and analyzed in the present article. Predominantly, persistent drawbacks of the existing organic waste conversion methods have been noted, providing consideration to economic, environmental and social development.
Collapse
Affiliation(s)
- B S Dhanya
- Department of Biotechnology, Udaya School of Engineering, Udaya Nagar, Kanyakumari, Tamil Nadu 629 204, India
| | - Archana Mishra
- Sustainable Agriculture Division, The Energy and Resources Institute, New Delhi, India
| | - Anuj K Chandel
- Department of Biotechnology, Engineering School of Lorena, University of São Paulo, Brazil
| | - Madan L Verma
- Department of Biotechnology, School of Basic Sciences, Indian Institute of Information Technology, Una, Himachal Pradesh, India.
| |
Collapse
|
10
|
Priyadarshini P, Abhilash PC. Circular economy practices within energy and waste management sectors of India: A meta-analysis. BIORESOURCE TECHNOLOGY 2020; 304:123018. [PMID: 32087547 DOI: 10.1016/j.biortech.2020.123018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/08/2020] [Accepted: 02/11/2020] [Indexed: 05/28/2023]
Abstract
Adoption of circular practices within environmental management is gaining worldwide recognition owing to rapid resource depletion and detrimental effects of climate change. The present study therefore attempted to ascertain the linkages between circular economy (CE) and sustainable development (SD) by examining the role of renewable energy (RE) and waste management (WM) sectors in CE combined with policy setup and enabling frameworks boosting the influx of circularity principles in the Indian context. Results revealed that research dedicated towards energy recovery from waste in India lacks integration with SD. Findings also revealed that although India is extremely dedicated towards attainment of the SDGs, penetration of CE principles within administration requires considerable efforts especially since WM regulations for municipal, plastic and e-waste lack alignment with CE principles. Integration of WM and RE policies under an umbrella CE policy would provide further impetus to the attainment of circularity and SD within the Indian economy.
Collapse
Affiliation(s)
- Priya Priyadarshini
- Institute of Environment & Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | | |
Collapse
|
11
|
Lee JK, Patel SKS, Sung BH, Kalia VC. Biomolecules from municipal and food industry wastes: An overview. BIORESOURCE TECHNOLOGY 2020; 298:122346. [PMID: 31734061 DOI: 10.1016/j.biortech.2019.122346] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 06/10/2023]
Abstract
Biological wastes generated from food and fruit processing industries, municipal markets, and water treatment facilities are a major cause of concern for Health Departments and Environmentalists around the world. Conventional means of managing these wastes such as transportation, treatment, and disposal, are proving uneconomical. The need is to develop green and sustainable technologies to circumvent this ever-growing and persistent problem. In this article, the potential of diverse microbes to metabolize complex organic rich biowastes into a variety of bioactive compounds with diverse biotechnological applications have been presented. An integrated strategy has been proposed that can be commercially exploited for the recovery of value-adding products ranging from bioactive compounds, chemical building blocks, energy rich chemicals, biopolymers and materials, which results in a self-sustaining circular bioeconomy with nearly zero waste generation and complete degradation.
Collapse
Affiliation(s)
- Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 05029, Republic of Korea
| | - Sanjay Kumar Singh Patel
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 05029, Republic of Korea
| | - Bong Hyun Sung
- Bioenergy and Biochemical Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Vipin Chandra Kalia
- Department of Chemical Engineering, Konkuk University, 1 Hwayang-Dong, Gwangjin-Gu, Seoul 05029, Republic of Korea.
| |
Collapse
|