EM菌与化学絮凝剂复配实验研究

Experimental study on combination of EM and chemical flocculants

通过实验考查EM复壮液分别与无机高分子絮凝剂PAC、PFS复配使用处理高岭土悬浊液絮凝条件和絮凝效果。实验结果表明:EM复壮液与化学絮凝剂复配以后的适用条件为弱酸弱碱性环境。最佳复配比分别为VPAC∶VEM=0.6mL∶2 mL或VPFS∶VEM=1.0 mL∶3.0 mL,前者的絮凝率为91.2%,优于后者的87.6%。同时降低了处理后水中的金属残余量以及絮凝剂的总投加量,降低污水处理的成本,提高了水质。

The flocculation conditions and performance of the treatment of kaolin suspensions by using combination of rejuvenated EM liquid and inorganic high molecular flocculants PAC PFS were studied.The results showed that the conditions of combination rejuvenated EM liquid and chemical flocculant was weak acid and alkali environment.The best combination volume proportion of PAC（PFS） and rejuvenated EM liquid was VPAC∶VEM=0.6 mL∶2 mL（VPFS∶VEM=1.0 mL∶3.0 mL）.Flocculation rate of the former was 91.2%,,it was better than the latter,which was 87.6%.At the same time,it could not only result in the reduction of residual metallic elements in treated water and flocculants usage but also low cost in wastewater treatment.The results showed that it could reach a higher level of water quality.