摘要
水质的恶化是影响水生生物存活率和产量的主要障碍 ,因此如何净化水质已成为养殖技术的难点和研究热点。从养虾池底泥分离得到 4株光合细菌 (PSB) ,经初步鉴定分别为纤细红螺菌、球形红假单胞菌和沼泽红假单胞菌 ;将其混合培养后处理养虾池水 ,结果表明 ,PSB可以有效分解底泥中污染物 ,去除水体中的COD、氨氮 (第 4dCOD去除率为 72 .5 9% ,氨氮去除率达 89.2 % ) ,养殖池PSB的使用量以 1mg/L为宜。
The major obstacles influenceing the livability and production of hydrophilic biotics are the water quality. How to depurate water quality has become the nodes and hotspot in aquatic breed. Four strains were selected out from mud of shrimp pond. They were determinated fringely as Rhodospirillum tneue,Rhodopseudomonas sphaeroides and Rhodopseudomonas palustris. The results show that mixed PSB could efficiently decompose pollutant in the pond sediment, and eliminate COD and NH-3-N from water body(COD and NH-3-N decreasing rate were 72.59% and 89.2% respectively), the suitable added amount of PSB to shrimp culture ponds was 1mg/L.
出处
《微生物学杂志》
CAS
CSCD
2004年第2期7-9,37,共4页
Journal of Microbiology
关键词
光合细菌
分离
鉴定
水产养殖
净化
水质
养殖池
PSB
Photosynthetic bacteria, separate and screen, aquatic breed, purify water quality.
