狐尾藻治理养殖污水技术在云南的推广应用成效

Effectiveness of the Application of Myriophyllum for Aquaculture Wasterwater Treatment Technology in Yunnan Province

就云南某猪场采用狐尾藻处理养殖污水技术的处理效率及狐尾藻营养含量进行系统分析,结果表明,经过6级狐尾藻生态处理池后,养殖污水的COD、氨氮、总氮、总磷的去除效率分别为97.28%、98.36%、96.99%和94.64%,其出水水质明显优于国家养殖废水排放标准(GB 18596-2001);狐尾藻粗蛋白含量为18.75%~21.28%,粗脂肪含量为2.85%~3.65%,磷含量为0.26%~0.31%,是一种营养价值较高的饲草饲料。可见,狐尾藻在治理养殖污水和资源化利用方面具有良好的效益,可在云南进一步推广应用。

The treatment efficiency of the treatment of aquaculture wastewater by Myriophyllum in a pig farm in Yunnan and the nutrient content of Myriophyllum were systematically analyzed.The results showed that after the 6-stage Myriophyllum ecological treatment pool,the removal efficiency of COD,ammonia nitrogen,total nitrogen and total phosphorus in the aquaculture wastewater were 97.28%,98.36%,96.99%and 94.64%,respectively,and the effluent quality was significantly better than discharge standard of pollutants for livestock and poultry breeding(GB 18596-2001).The crude protein content,crude fat content and phosphorus content were 18.75-21.28%,2.85-3.65%and 0.26%-0.31%,respectively,and it was a forage feed with high nutritional value.Myriophyllum has good benefits in controlling aquaculture wastewater and resource utilization,and can be further promoted and applied in Yunnan.