Economic and environmental sustainability of an AnMBR treating urban wastewater and organic fraction of municipal solid waste

JOURNAL OF ENVIRONMENTAL MANAGEMENT

卷:179

Article

Pretel, R.¹  Monino, P.¹  Robles, A.¹  Ruano, M. V.²  Seco, A.²  Ferrer, J.¹ 

[1] Univ Politecn Valencia, IIAMA, Inst Univ Invest Engn Aigua & Medi Ambient, Cami Vera S-N, E-46022 Valencia, Spain

[2] Univ Valencia, Escola Tecn Super Engn, Dept Engn Quim, Avinguda Univ S-N, E-46100 Valencia, Spain

关键词: Anaerobic membrane bioreactor (AnMBR);    Ambient temperature;    Energy consumption;    Life cycle analysis (LCA);    Organic fraction of municipal solid waste (OFMSW);    Urban wastewater (UWW);   

DOI  :  10.1016/j.jenvman.2016.04.057

来源: Elsevier

【 摘 要 】

The objective of this study was to evaluate the economic and environmental sustainability of a submerged anaerobic membrane bioreactor (AnMBR) treating urban wastewater (UWW) and organic fraction of municipal solid waste (OFMSW) at ambient temperature in mild/hot climates. To this aim, power requirements, energy recovery from methane (biogas methane and methane dissolved in the effluent), consumption of reagents for membrane cleaning, and sludge handling (polyelectrolyte and energy consumption) and disposal (farmland, landfilling and incineration) were evaluated within different operating scenarios. Results showed that, for the operating conditions considered in this study, AnMBR technology is likely to be a net energy producer, resulting in considerable cost savings (up to (sic)0.023 per m(3) of treated water) when treating low-sulphate influent. Life cycle analysis (LCA) results revealed that operating at high sludge retention times (70 days) and treating UWW jointly with OFMSW enhances the overall environmental performance of AnMBR technology. (C) 2016 Elsevier Ltd. All rights reserved.

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