Recycling of biological secondary effluents in petrochemical industry using submerged microfiltration and reverse osmosis - pilot study and economic evaluation

doi:10.5004/dwt.2017.21463

CNU IR > College of Sustainable Environment and Recreation > Dept. of Environmental Engineering and Science (including master's program) > Periodical Articles > Item 310902800/31628

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Title:	Recycling of biological secondary effluents in petrochemical industry using submerged microfiltration and reverse osmosis - pilot study and economic evaluation
Authors:	Ni, Chen-Hua Lin, Yu-Chung Chang, Chia-Yuan Lin, Justin Chun-Te
Contributors:	Ecodigital Technol Inc EigenGreen Int Inc Chia Nan Univ Pharm & Sci, Dept Environm Engn & Sci Feng Chia Univ, Dept Environm Engn & Sci
Keywords:	Petrochemical wastewater recycling Biological secondary effluents Submerged microfiltration Reverse osmosis Integrated membrane system Economic evaluation (CAPEX and OPEX)
Date:	2017-11
Issue Date:	2018-11-30 15:50:47 (UTC+8)
Publisher:	Desalination Publ
Abstract:	Two critical issues determining success of a wastewater reclamation project from petrochemical biological secondary effluents (BSE) were technical feasibility and cost-effectiveness. The former required qualified effluents for capable using in desired recycling purposes, and needed to demonstrate stability of the proposed system under extreme conditions. A mobile pilot plant composed of submerged microfiltration (sMF) and reverse osmosis (RO) membranes was applied to commit aforementioned issues in recycling BSE on site. Even an emergent shutdown caused by typhoon (shock chemical oxygen demand was more than three times, 210 m.L-1, of normal BSE, 85.7 mg.L-1), excellent water quality still fulfilled requirements for cooling water make-up or process water in petrochemical manufacturing. Stability of the integrated membrane system (IMS) was therefore proved, average flow rates of sMF and RO were, respectively, 10.40 +/- 0.29 and 4.47 +/- 0.41 L min(-1), as well as effective membrane fouling control was implemented. Economic attractive of the proposed IMS was presented by evaluating capital (CAPEX) and operational expenditures (OPEX) of the sMF-one pass RO (0.45 USD.m(-3) for OPEX and 0.28 USD.m(-3) for CAPEX) and further upgrading to sMF-two pass RO (0.52 and 0.32 USD.m(-3), respectively) for full-scale reclamation project.
Relation:	Desalination and Water Treatment, v.96, pp.45-54
Appears in Collections:	[Dept. of Environmental Engineering and Science (including master's program)] Periodical Articles

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