生态环境学报2024，Vol.33Issue(12)：1923-1930,8.DOI:10.16258/j.cnki.1674-5906.2024.12.010
广东省典型淡水水产养殖尾水治理技术模式污染物去除效果对比研究
Comparative Study on Pollutant Removal Effect of Typical Freshwater Aquaculture Tail Water Treatment Technology Model in Guangdong Province
摘要
Abstract
Guangdong Province has a well-developed freshwater aquaculture industry.The aquaculture wastewater treatment technologies in the province are diverse.However,there is a lack of comparative research on the pollutant removal efficiencies of various technologies,leading to the inability of enterprises to effectively identify an optimal model for screening treatment technologies for aquaculture wastewater.This study focuses on five freshwater aquaculture wastewater treatment modes commonly used in Guangdong province:three pond and two dam treatment modes,three pond and one dam treatment mode,freshwater elevated pond culture-greenhouse aquaponic treatment mode,runway treatment mode,and ecological regulation/storage and reuse pond treatment modes.Through an in situ investigation of 25 freshwater fishponds in eight cities in the province,sampling and analysis were conducted to evaluate the removal effects of nitrogen,phosphorus,and COD under each treatment mode.Five fishponds with relatively poor influent water quality were selected for comparison of the five treatment modes.The results showed that,under all five treatment modes,nitrogen,phosphorus,CODMn,and other pollutants were effectively removed,meeting the discharge standard.Through comparative analysis,it was concluded that the removal efficiencies of pollutants in the three pools and two dam treatment modes were the most prominent,with the removal efficiencies of ammonia nitrogen,total nitrogen,and CODMn reaching 76.6%,77.4%,and 44.4%,respectively,ranking first place among the five treatment modes.The TP removal rate of total phosphorus reached 35.3%,ranking third among the five treatment modes.Compared with the other four treatment modes,the three-pond and two-dam treatment modes have the advantages of smaller footprints,low investment,and simple operation and maintenance.Comprehensive pollutant removal performance,which is a conventional treatment model that deserves popularization for freshwater aquaculture wastewater treatment,has demonstrated superior efficacy.关键词
广东/淡水水产养殖/尾水治理/技术模式/去除率/对比分析Key words
Guangdong/freshwater aquaculture/tailwater treatment/technical model/removal rate/comparative analysis分类
资源环境引用本文复制引用
邹耀,张凯,张兆威..广东省典型淡水水产养殖尾水治理技术模式污染物去除效果对比研究[J].生态环境学报,2024,33(12):1923-1930,8.基金项目
广东省生态环境厅技术服务项目(440001-2021-29746) （440001-2021-29746）
