工业污水处理水再生处理初步研究

通过在聚合氯化铝絮凝处理焦化工业污水处理水的过程中引入一种精细化学品作絮凝增效剂,对焦化工业污水处理水进行再生处理。实验表明,絮凝过程中加入絮凝增效剂能大大提高焦化工业污水处理水色度和COD去除率;单独使用聚合氯化铝絮凝时,色度去除率为64.3%,COD去除率为47.3%,引入絮凝增效剂后,色度去除率可以提高到90%,COD去除率可以提高到55.7%,使焦化工业污水处理水的COD由200mg/L降低到88mg/L,色度由600度降低到55度。 This research got a dispose of regeneration for treated water of coking industrial wastewater through adding a kind of fine chemical as flocculation synergist in the process of coking treated water of industrial wastewater disposal through flocculation with PAC.The results show that the removing rate of chroma and COD can be increased markedly when flocculation synergist is added in the process of flocculation.Compared with the process when PAC is used alone,the removing rate of COD can be increased to 55.7% from 47.3%,the removing rate of chroma can be increased to 90% from 64.3%,The content of COD reduce to 88mg/L from 200mg/L while the chroma reduce to 55 from 600