摘要
为比较分析对虾工厂化养殖与池塘养殖环境的差异及探讨简易水处理系统的处理效果。试验借助常规的水质检测方法,对比两系统水质因子,分析处理系统废水处理前后各水质因子的变化。工厂化养殖排放废水DO含量的变化范围为7.1-12.6mg/L;池塘养殖排放废水DO含量的变化范围为2.9-4.8mg/L,远低于工厂化养殖。池塘养殖废水TSS含量的变化范围为100.4-140.0mg/L;工厂化养殖废水TSS含量的变化范围为172.6-220.4mg/L。方差分析表明,工厂化养殖废水的TSS含量显著高于池塘养殖(P<0.01);工厂化养殖排放废水的总氮(TN)和总磷(TP)含量显著高于池塘养殖(P<0.05)。经沉淀池处理后,TSS含量降低了66.9%;经栽培有裙带菜的养殖槽,废水中TAN、NO2-N、NO3-N和PO4-P分别降低了58.1.0%、43.0%、55.9%和29.1%。来自工厂化养殖的废水含有较多的污染物质,直接排放可能对环境的危害更大;该实验设计的简易水处理系统具有较好的处理效果。
The characterization of pond and effluent waters characterization in semi-intensive outdoor and super-intensive indoor shrimp ponds were evaluated, and a sample water treatment system was designed to estimate its effect in this study. Routine methods were used to detect water quality factors between two farming systems. And effect was analyzed of the water treatment system. DO concentrations of effluent water in super-intensive and semi-intensive were 7.1~12.6mg/L and 2.9~4.8mg/L, respectively. Effluent DO concentration of super-intensive was significantly higher than that of semi-intensive. In semi-intensive, the effluent water TSS was 100.4 ~140.0mg/L; In super-intensive that was 172.6 ~220.4 mg/L. TSS, TN and TP concentrations in super-intensive were significantly higher（P〈0.05）than those of semi-intensive. The efficiency of treatment system showed that the average removal of 66.9% TSS, 58.1% TAN, 43.0% NO2-N, 55.9% NO3-N and 29.1% PO4-P were estimated. Effluent water from super-intensive may be more harmful to receiving water. The water treatment system was practicable technically and environmentally friendly.
出处
《中国农学通报》
CSCD
2008年第10期564-569,共6页
Chinese Agricultural Science Bulletin
基金
青岛农业大学人才启动基金项目"对虾工厂化养殖系统分析及养殖废水无害化处理体系探讨"(630628)
关键词
对虾
工厂化养殖
池塘养殖
水质因子
水处理
shrimp, super-intensive farming, pond farming, water quality factor, wastewater treatment
