经济动物学报2024，Vol.28Issue(4)：358-365,8.DOI:10.13326/j.jea.2024.1845
复配絮凝剂处理养殖废水中的氨氮及总磷
Treatment of Ammonia Nitrogen and Total Phosphorus in Farming Wastewater with Compound Flocculants
摘要
Abstract
Ammonia nitrogen and total phosphorus in aquaculture wastewater was treated with combination of flocculants,polyferric sulfate(PFS),polyaluminum ferric sulfate(PAFCS),and anionic,cationic,and non-ionic polyacrylamides(APAM,CPAM,NPAM)as coagulants in the study.Firstly,the removal effect of a single flocculant was compared and analyzed,and then the compound coagulation test was carried out to select the best combination and dosage.The response surface method was used to optimize the flocculation conditions of the combination with the best treatment effect.The results showed that PFS+NPAM was the optimal combination,and its removal effect was significantly higher than that of a single flocculant.When the dosage of PFS and NPAM was 1 500 mg/L and 8 mg/L respectively,ammonia nitrogen and total phosphorus were removed effectively,and the removal rate was(73.81±0.20)%and(93.57±0.30)%respectively.The removal effect was obviously improved after the optimization of flocculation conditions.When the initial pH value was 7.0,the temperature was 35℃,and the stirring time lasted for 10 min,the removal rate of ammonia nitrogen and total phosphorus reached to 79.15%and 96.50%respectively,and the wastewater discharge shall meet the Pollutant Discharge Standard of Livestock and Poultry Industry(GB 18596-2001).关键词
复配絮凝剂/养殖废水/氨氮/总磷/响应面法Key words
compound flocculant/aquaculture wastewater/ammonia nitrogen/total phosphorus/response surface methodology分类
农业科技引用本文复制引用
朱彦宾,张敬一,许湘竹,巴桑旺堆,高云航..复配絮凝剂处理养殖废水中的氨氮及总磷[J].经济动物学报,2024,28(4):358-365,8.基金项目
西藏自治区科技计划项目(XZ202101ZD0002N-04),国家现代农业产业技术体系建设专项(CARS-37) （XZ202101ZD0002N-04）
