水土保持学报2012，Vol.26Issue(4)：231-234,4.
生态沟渠对中华鳖温室养殖排放水体的净化效果
Purifying Effect of Eco-ditch on Effluent from Greenhouse-culture of Chinese Soft-shelled Turtle（Pelodiscus sinensis）
摘要
Abstract
The purifying effect of the eco-ditch technology system, which combined with ＂aquatic plants（water hyacinth, Eichhornia crassipes ）-microbes （Bacillus subtilis ）-aquatic animals （snail, Margarya）＂, on the effluent from greenhouse-culture of Chinese soft-shelled turtle（Pelodiscus sinensis） was studied. Change of each main nutrient pollutant indicators of the treated water sample was analyzed continuously for several months. The results showed that： Total nitrogen（TN） concentration of the treated water decreased 75 %, ammonia nitrogen（NH[ -N） concen- tration decreased 91 %, total phosphorus（TP） concentration decreased 83%, chemical oxygen demand （CODe,） decreased 62 %, dissolved oxygen（DO） content in water increased nearly four times, and the water pH main- tained at a neutral level, by utilizing the eco-ditch technology system to purify the effluent from the green- house-culture for nearly five months. During the experiment period, the treated water also gradually changed from initial yellow or brown turbidity into a slightly yellowish turbidity, and no odor. It could be seen that, the purifying effect of using eco-ditch technology system, which combined with ＂aquatic plants-microbes- aquatic animals＂, to remediate the effluent from greenhouse-culture of Chinese soft-shelled turtle was very significant, thus, it could be concluded that the eeo-ditch technology system had good prospects of promotion and application in effluents purification of other fresh water fish culture.关键词
生态沟渠/中华鳖/温室养殖/排放水体/净化效果Key words
eco-ditch Chinese soft-shelled turtle greenhouse-culture effluent purifying effect分类
资源环境引用本文复制引用
吴湘,叶金云,吴昊,王趁义,韩志萍..生态沟渠对中华鳖温室养殖排放水体的净化效果[J].水土保持学报,2012,26(4):231-234,4.基金项目
浙江省重点科技创新团队项目 （）
浙江省自然科学基金青年科学基金项目 （）
浙江省重大科技（农业）项目 （）
农业部“948”项目（2010-Z40）湖州市“365”优秀创新团队项目 （）
