絮凝法处理斑点叉尾鱼回鱼宰杀废水的研究

Treatment of wastewater from channel catfish slaughtering by flocculation method

通过比较不同絮凝剂对斑点叉尾鱼回鱼宰杀废水的处理效果,得出聚合硫酸铁(PFS)的絮凝效果最佳的结论。并且研究了静置时间、pH值,聚合硫酸铁用量,搅拌时间和温度对处理斑点叉尾鱼回鱼宰杀废水絮凝效果的影响,得出最佳絮凝条件为:静置时间4 h,pH值为9,聚铁用量6 g/L,搅拌时间6min,温度20℃。此时蛋白质,CODCr及SS的去处率分别达到了91.65%,88.42%和99.30%。

The effects of different flocculants on treatment of wastewater from channel catfish slaughtering were compared,which showed that PFS was the most efficient flocculant.The effects of placing time,pH,dosage of PFS,mixing time and temperature on treatment of wastewater were studied,and the results showed that under the optimum flocculation conditions i.e.placing time is 4h,pH value 9,dosage of PFS 6g/L,mixing time 6minutes,and temperature 20℃,the removal rate of protein,CODCr and SS can reach 91.65%,88.42% and 99.30% respectively.