微藻光生物反应器在养猪废水处理提标改造中的应用  

Application of Microalgae Photobioreactor in Upgrading and Reconstruction of Piggery Wastewater Treatment Process

作　　者：肖海文[1] 覃文翊 翟俊[1] 陶光卿 XIAO Hai-wen;QIN Wen-yi;ZHAI Jun;TAO Guang-qing(Key Laboratory of Three Gorges Reservoir Region's Eco-Environment,Chongqing University,Chongqing 400045,China)

机构地区：[1]重庆大学三峡库区生态环境教育部重点实验室,重庆400045

出　　处：《中国给水排水》2022年第19期23-27,共5页China Water & Wastewater

摘　　要：贵州省某规模化养猪场采用干清粪工艺,废水主要来源于猪栏冲洗,COD和氮、磷浓度均较高。针对原有的生物处理组合工艺难以使出水水质达标的问题,在提标改造工程中增加了廊道式微藻光生物反应器系统。运行结果表明,改造后的“UASB+SBR+廊道式微藻光生物反应器”工艺处理效果良好,出水水质优于《畜禽养殖业污染物排放标准》(GB 18596—2001)以及广东、浙江、山东等地方标准,工程运行费用为2.04元/m^(3),出水可回用于猪栏冲洗,并可回收微藻生物质,具有良好的经济和环境效益。A large-scale pig farm in Guizhou Province adopts dry manure process. Its wastewater is mainly from the washing of piggery, which has the characteristics of high COD, nitrogen and phosphorus.As the effluent quality of the original biological combined process is difficult to reach the discharge standard, the corridor-type microalgae photobioreactor was added in the upgrading and reconstruction project. Good treatment performance of the modified process consisting of UASB, SBR and corridor-type microalgae photobioreactors was obtained, and the effluent quality was better than the limits specified in Discharge Standard of Pollutants for Livestock and Poultry Breeding(GB 18596-2001) and the local standards of Guangdong, Zhejiang and Shandong provinces. The operational cost of the project was 2.04 yuan/m^(3). The effluent could be reused for washing the piggery, and the microalgae biomass could be recycled, which had good economic and environmental benefits.

关 键 词：养猪废水 廊道式微藻光生物反应器 提标改造 

分 类 号：TU992[建筑科学—市政工程]