摘要
为探讨水生生物对养猪废水的降解效果,文章选取安徽省某养猪场的沼液废水为研究对象,设计了试验装置,废水从沼气池中接管后依次流经生物基质池和生物塘,在生物塘中分别种植美人蕉、苦草、狐尾藻和芦苇四种水生生物,监测了装置运行10 d、20 d、30 d和40 d生物基质池和生物塘中TP、COD、氨氮和SS的含量,计算出了四种水生生物对各污染物的去除率,结果表明:狐尾藻对养猪废水中COD去除效果最好,其次是苦草,去除率均在80%以上;四种植物中对养猪废水中SS去除率均在80%以上;芦苇对养猪废水中氨氮去除效果最好,在70%以上。
In order to explore the degradation effect of aquatic organisms on pig wastewater,this paper selects the biogas slurry wastewater from a pig farm in Yingtan City,Jiangxi Province as the research object and designs a test device.Cannabis,bitter grass,foxtail algae and reeds were planted in the biological ponds.The TP,COD,ammonia nitrogen and SS in the biological matrix pools and biological ponds were monitored for 10 d,20 d,30 d,and 40 d.Content calculated the removal rate of each pollutant by four aquatic organisms,and the results showed that:Myriophyllum aquaticum had the best removal effect on COD in pig wastewater,followed by bitter grass,with removal rates above 80%.The removal effect of SS in swine wastewater was very good among the four plants,and the removal rates were all above 80%.Among them,the bitter grass had the best effect,followed by myriophyllum.The removal rate of SS by these two plants.Both are above 90%.Reed has the best effect on ammonia nitrogen removal in pig wastewater with a removal rate of more than 70%.
作者
巫方才
Wu Fangcai(Xuancheng Ecological Environment Law Enforcement Monitoring Station,Xuancheng 242000,China)
出处
《环境科学与管理》
CAS
2023年第1期140-143,共4页
Environmental Science and Management
基金
宣城市2020年市科技计划面上攻关项目(XCKJ20-031)。
关键词
沼液废水
水生生物
去除率
生物基质池
biogas slurry wastewater
aquatic organism
removal rate
biological matrix pond
