二次凝聚法去除原水TOC的特性研究

Study on TOC Removal from Raw Water by Secondary Flocculating Process

针对饮用水原水有机物污染加重的趋势 ,提出了提高去除原水有机物效果的二次凝聚法。通过对某河水的凝聚试验 ,发现应用二次凝聚法在去除TOC和浊度方面有明显的优势。试验结果表明 :二次凝聚法与常规凝聚相比 ,药剂量适度增加而总凝聚时间增加 1倍 ,TOC去除率提高30 %以上 ,试验沉淀出水浊度下降 2 0NTU。

Dealing with the aggravating organic pollution of natural water bodies, Secondary Flocculating (SF) process is proposed to improve the removal of organic pollutants from raw water. In conducted river water experiment the superiority of SF in TOC and turbidity removals was evident. In case when the flocculent dosage increased moderately and the flocculating time extended to two times, the TOC removal rate increased 30% and the residual turbidity of the sedimentation effluent decreased 2 0 NTU compared with the conventional flocculating process.