LAPSE:2023.33871
Published Article
LAPSE:2023.33871
Recent Approaches for the Production of High Value-Added Biofuels from Gelatinous Wastewater
Ahmed Tawfik, Shou-Qing Ni, Hanem. M. Awad, Sherif Ismail, Vinay Kumar Tyagi, Mohd Shariq Khan, Muhammad Abdul Qyyum, Moonyong Lee
April 24, 2023
Gelatin production is the most industry polluting process where huge amounts of raw organic materials and chemicals (HCl, NaOH, Ca2+) are utilized in the manufacturing accompanied by voluminous quantities of end-pipe effluent. The gelatinous wastewater (GWW) contains a large fraction of protein and lipids with biodegradability (BOD/COD ratio) exceeding 0.6. Thus, it represents a promising low-cost substrate for the generation of biofuels, i.e., H2 and CH4, by the anaerobic digestion process. This review comprehensively describes the anaerobic technologies employed for simultaneous treatment and energy recovery from GWW. The emphasis was afforded on factors affecting the biofuels productivity from anaerobic digestion of GWW, i.e., protein concentration, organic loading rate (OLR), hydraulic retention time (HRT), the substrate to inoculum (S0/X0) ratio, type of mixed culture anaerobes, carbohydrates concentration, volatile fatty acids (VFAs), ammonia and alkalinity/VFA ratio, and reactor configurations. Economic values and future perspectives that require more attention are also outlined to facilitate further advancement and achieve practicality in this domain.
Keywords
anaerobic digestion, Biofuels, energy recovery, gelatinous wastewater, protein degradation
Subject
Suggested Citation
Tawfik A, Ni SQ, Awad HM, Ismail S, Tyagi VK, Khan MS, Qyyum MA, Lee M. Recent Approaches for the Production of High Value-Added Biofuels from Gelatinous Wastewater. (2023). LAPSE:2023.33871
Author Affiliations
Tawfik A: Water Pollution Research Department, National Research Centre, Giza 12622, Egypt
Ni SQ: Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China
Awad HM: Department Tanning Materials and Leather Technology & Regulatory Toxicology Lab, National Research Centre, Centre of Excellence, Giza 12622, Egypt [ORCID]
Ismail S: Shandong Provincial Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Environmental Engineering Department, Zagazig University, Zagazig 44519, Egypt [ORCID]
Tyagi VK: Environmental Biotechnology Group (EBiTG), Department of Civil Engineering, Indian Institute of Technology, Roorkee 247667, India
Khan MS: Department of Chemical Engineering, Dhofar University, Salalah 211, Oman
Qyyum MA: School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Korea [ORCID]
Lee M: School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Korea [ORCID]
Journal Name
Energies
Volume
14
Issue
16
First Page
4936
Year
2021
Publication Date
2021-08-12
Published Version
ISSN
1996-1073
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Original Submission
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PII: en14164936, Publication Type: Review
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LAPSE:2023.33871
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doi:10.3390/en14164936
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Apr 24, 2023
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