摘要
依据菌株降解特性和降解底物的差异,构建了包含不同菌群的水质改良剂,通过室内和室外试验,检测了不同水质改良剂对养殖水体化学耗氧量(COD)、氨态氮(NH4-N)、亚硝态氮(NO2-N)和溶解氧含量变化的影响。结果表明,由N419、JM14、C5三种菌组合配制的水质改良剂效果最好,处理15d时,COD降解率达到92.6%,NH4-N消减率达到94.5%,NO2-N消减率达到81.6%,溶解氧提升22.8%。
B ased on differences in the characteristics of different strains,the comparisons on water purifying efficiency of 8 microorganismwatertreatmentagentswerecarriedinthisstudy.TheresultsshowedthattheperformanceofpurificationagentwithstrainN419,JM14,C5 was higher than that of other 7 compound microbial agents. After 15 days treatment,the concentration of COD,N H 4-N and NO2-N was declined by 92.6% ,94.5% and 81.6% ,respectively.Meanwhile, the dissolved oxygen was increased by 22.8%.
出处
《湖南农业科学》
2014年第7期58-60,共3页
Hunan Agricultural Sciences
基金
湖南省农业科技项目[湘农业计(2009)76]
湖南省科技厅重大专项(2009FJ1005)
关键词
淡水
养殖
水质改良剂
复合菌群
freshwater
aquaculture
purifying agent
compound microflora
