Pollution prevention and biochemical oxygen demand reduction in a squid processing facility |
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| Institution: | 1. Chemical Engineering Department, Center for Pollution Prevention, University of Rhode Island, Kingston, RI 02881, USA;2. Office of Technical and Customer Assistance, Rhode Island Department of Environmental Management, Providence, RI 02908, USA;3. Department of Food Science and Nutrition, FSN Research Center, University of Rhode Island, Kingston, RI 02881, USA;1. Institute of Bioinformatics and Biotechnology, Savitribai Phule Pune University, Pune 411007, India;2. Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory (CSIR-NCL), Pune 411008, India;1. Faculty of Science and Technology, Free University of Bolzano, Piazza Università 5, 39100 Bolzano, Italy;2. Department of Industrial Engineering, University of Padova, Via Marzolo 9, 35131 Padova, Italy;1. School of Marine Engineering, Jimei University, Xiamen 361021, China;2. Fujian Provincial Key Laboratory of Naval Architecture and Ocean Engineering, Xiamen 361021, China;1. Civil and Environmental Engineering, University of Hawaii at Manoa, 2540 Dole Street Holmes 383, Honolulu, HI 96822, USA;2. Seawater Utilization Plant Research Center (SUPRC), Korea Research Institute of Ships & Ocean Engineering, 124-32, Simcheungsu-gil, Jukwang-myeon, Goseong-gun, Gangwon-do 219-822, Republic of Korea |
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| Abstract: | Fish processing, especially squid, creates high strength biochemical oxygen demand (BOD) wastewater that must be pretreated prior to sewer discharge. This study evaluated (1) new squid processing techniques, (2) advanced biological/chemical treatment technologies to meet local wastewater discharge regulations, and (3) recycling opportunities for materials formerly discarded as waste. Low technology modifications such as improved housekeeping/management systems were implemented in order to obtain initial reductions in BOD loadings. Various high technology separation processes, aimed at removing soluble BOD from the process effluent, were evaluated. A first order cost–benefit analysis based on capital and operating costs, BOD reduction efficiencies, and worker health risk factors indicated that a modified biological trickling filter was the best available pretreatment technology for squid processing wastewater. |
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