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为探讨Cu2+、p H和流速对固定化斜生栅藻去除畜禽废水中NH+4-N、TP效果的影响,在实验室条件下模拟实际污水处理过程,并采用正交实验方案对结果进行分析。结果表明低质量浓度Cu2+(0~0.05 mg/L)改善藻的净化效果,高质量浓度Cu2+(0.50~5.00 mg/L)抑制藻的净化效果;在p H较高的条件下(p H=9),固定化斜生栅藻的净化效果明显提高;流速对结果没有明显影响。通过正交实验,得出固定化斜生栅藻去除畜禽废水中NH+4-N、TP的优化条件如下:Cu2+质量浓度为0.05 mg/L,p H为9,流速为0.3 m/s。此时NH+4-N去除率为96.11%,TP去除率为97.53%。
In order to investigate the effects of Cu2 +, pH and flow rate on the removal of NH + 4-N and TP from livestock and poultry wastewater by immobilized slantback weeds, the actual wastewater treatment process was simulated under laboratory conditions and the results of orthogonal experiment Analyze. The results showed that the low concentration of Cu2 + (0 ~ 0.05 mg / L) could improve the purifying effect of algae and the high concentration of Cu2 + (0.50 ~ 5.00 mg / L) 9), the purifying effect of immobilized R. obliquus significantly increased; the flow rate had no obvious effect on the result. Through orthogonal experiment, the optimal conditions for removal of NH + 4-N and TP from livestock and poultry wastewater by immobilized Phylogenetic analysis were as follows: Cu2 + concentration was 0.05 mg / L, pH was 9, flow rate was 0.3 m / s . At this point NH + 4-N removal rate of 96.11%, TP removal rate of 97.53%.