摘要
为开发海水低温环境下人工湿地在水产养殖上的应用,研究人工湿地在海水环境下对梭鱼亲本室内越冬养殖废水的处理效果和净化效能。海水（16.8‰~19.6‰）人工湿地对室内越冬养殖废水的净化效果：总凯氏氮去除率为13.4%,总氨氮为32.1%,亚硝氮为33.1%,浊度为55.1%,COD为35.6%,总磷为34.6%。越冬期间养殖池水质稳定。低温对总凯氏氮和三态氮的去除率有一定影响,并制约人工湿地脱氮过程;对浊度、COD、总磷去除率影响并不明显。海水人工湿地能维持连续运转并保持越冬养殖池的水质稳定。养殖负载量、越冬期间水力负荷尚有提升空间。
To develop constructed wetland in the application of aquaculture under condition of seawater and low temperature, the purification effects of Chelon haematocheilus parents in the indoor recirculating overwinter aquaculture system combined with seawater wastewater constructed wetland were investigated. The results showed that the removal rates of total Kjeldahl nitrogen, total ammonia nitrogen, nitrite nitrogen, turbidity, chemical oxygen demand and total phosphorous in system were 13.4%, 32.1%, 33.1%, 55.1%, 35.6%, and 34.6%, respectively. Various water quality parameters in the culture tanks were stable. Low temperature had a certain influence on the removal rate of total Kjeldahl nitrogen, total ammonia nitrogen, nitrite nitrogen, and nitrate nitrogen, which restricted denitrification process in the constructed wetland. Low temperature had unconspicuous influence on the removal rate of turbidity, chemical oxygen demand, and total phosphorus. Seawater constructed wetland can handle wastewater from the recirculating overwinter aquaculture system continuously, and keep water quality in the culture tanks stable. There is more potential to improve aquaculture load and hydraulic loading rate during overwinter aquaculture.
出处
《安徽农业大学学报》
CAS
CSCD
北大核心
2014年第3期395-400,共6页
Journal of Anhui Agricultural University
基金
上海市科学技术委员会(09ZR1429000
沪农科攻字(2012)第1-6号)
上海高校知识服务平台上海海洋大学水产动物遗传育种中心(ZF1206)共同资助
关键词
人工湿地
养殖废水
循环水越冬养殖系统
净化效果
去除率
梭鱼
constructed wetland
wastewater
recirculating overwinter aquaculture system
purifying effect
removal percentage
Chelon haematocheilus
