华南地区尾水治理设施养殖场水质综合评价  

Comprehensive water quality evaluation of the aquaculture wastewater treatment system in South China

作　　者：陈亮东 江达均 关歆 杨金兰 谷阳光[2,3] CHEN Liang-dong;JIANG Da-jun;GUAN Xin;YANG Jin-lan;GU Yang-guang(Station of Guangzhou Agricultural and Mechanizational Extension,Guangzhou 510220,China;South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510220,China;School of Environmental Science and Engineering,Guangdong University of Technology,Guangzhou 510006,China)

机构地区：[1]广州市农业机械化技术推广站,广州510220 [2]中国水产科学研究院南海水产研究所,广州510220 [3]广东工业大学环境科学与工程学院,广州510006

出　　处：《淡水渔业》2023年第4期106-112,共7页Freshwater Fisheries

基　　金：国家重点研发计划(2022YFC3105600)。

摘　　要：为科学全面评价养殖场尾水治理设施净化效果,综合使用单因子水质标识指数和综合水质标识指数评价方法,依据《淡水池塘养殖水排放要求》(SC/T 9101-2007),以总氮(TN)、总磷(TP)和化学需氧量(COD Mn)作为监测指标,对华南地区某地市的50家养殖场连片池塘尾水设施治理水质进行分析评价。结果显示:经过治理,养殖尾水二级排放限值达标率由治理设施进水口的84%提升到出水口的96%;单因子水质标识指数评价显示,尾水治理设施前环境污染物风险因子为TN和TP,治理设施有效去除养殖尾水中氮、磷,治理后主要污染物风险因子为TN;综合水质标识指数评价显示,综合水质(I WQ指数)也得到明显提升,净化后养殖尾水对环境污染风险有限。结果显示标准治理设施较简易治理设施有更好的净化效果。The water quality identification index method and single factor evaluation was both used to evaluate and analyze the comprehensive water quality of aquaculture wastewater from water treatment system in the freshwater aquafarm to evaluate the purification effect of the aquaculture wastewater treatment system scientifically.This study researched 50 aquafarms in a typical city of South China.Total nitrogen(TN),total phosphorus(TP)and organic matter(COD Mn)were chosen as monitoring indicators.The research results indicated that the success rate of aquaculture wastewater was improved from 84%to 96%according to Requirement for Water Discharge from Freshwater Aquaculture Pond(SC/T 9101-2007).The standard treatment system was more effective than the simple one.TN and TP were the critical risk factors of pollutants in the investigation area.The treatment system could effectively remove aquaculture wastewater nitrogen and phosphorus.Both the-factor evaluation and the comprehensive water quality were effectively promoted,indicating that the risk of environmental pollution from aquaculture wastewater was limited.

关 键 词：养殖尾水 水质标识指数 水质评价 污染物风险因子 

分 类 号：X714[环境科学与工程—环境工程]