光合细菌和水浮莲在河南农村猪场污水中的应用

Application of Pistia statiotes and Rhodospirillum sp. to the Treatment of Wastewater From a Rural Swine Farm in Xinyang of Henan Province

摘要: 利用在信阳农村养猪场中的2个3.3 m深的污水氧化塘进行光合细菌和水浮莲净化污水的研究。1#氧化塘加入8×10⁸mL^-1光合细菌50 L,2#氧化塘加入水浮莲(100株.m^-2)。为期1 a的试验结果表明:经光合细菌和水浮莲的共同作用,总磷下降了41.8%~76.0%,总氮下降了61.8%~81.0%,COD下降了66.8%~79.1%,BOD₅下降了64.8%~82.3%。显示光合细菌和水浮莲能够明显改善养猪场污水水质。

Abstract: Effects of Pistia statiotes and Rhodospirillum sp.were studied on treating wastewater from rural swine farms in two ponds(area: 398 m²;depth: 3.3 m) in Xinyang of Henan.Pond #1 was treated with Rhodospirillum sp.(50 L×8×10⁸ mL^-1),and Pond #2 with Pistia statiotes(100 m^-2).After one year of experiment,results show that the combined effect of the two treatments was significant with TP dropped by 41.8%-76.0%,TN by 61.8%-81.0%,COD by 66.8%-79.1% and BOD₅by 64.8%-82.3%.It demonstrates that Pistia statiotes and Rhodospirillum sp.can greatly improve wastewater quality of swine farm.