WU Jun-xiong,ZHU Le-hui,ZHANG Peng-yu,et al.Case of a Reconstructed Treatment Project for Large-scale Piggery Wastewater with High Ammonia Nitrogen[J].China Water & Wastewater,2021,37(8 8):139-138.
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Case of a Reconstructed Treatment Project for Large-scale Piggery Wastewater with High Ammonia Nitrogen

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第37卷 Number: 8 8 Page: 139-138 Column: Date of publication: 2021-04-17
Author(s):
WU Jun-xiong; ZHU Le-hui; ZHANG Peng-yu; MA Xiao-wei; HUANG Dong-gen
(Key Laboratory of Poyang Lake Environment and Resource Utilization < Ministry of Education >, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang 330031,China)
Keywords:
large-scale piggery wastewater; two-stage A/O; BAF; Fenton; chemical phosphorus removal
Abstract:
The wastewater from a large-scale piggery in Jiangxi Province contains high concentration of NH3-N, TP and refractory organic matters, such as lignin. The effluent quality couldnot reach the discharge requirements after the treatment by the original sewage treatment system. On the basis of wastewater quality analysis, the original process was transformed into a combined process of air flotation, anaerobic tank, twostage A/O, aerated biological filter, Fenton oxidation, and chemical phosphorus removal. The practical running results after reconstruction showed that the total removal rate of COD, NH3-N and TP reached 99.4%,96.7% and 97.8%, respectively. The final effluent water quality could meet Wastewater Discharge Standard of Poyang Lake Eco-economic District in Jiangxi Province(DB 36/852-2015).
Last Update: 2021-04-17