介质类助滤剂对生化混合污泥脱水性能的影响研究  

Study on the Effect of Media Filter Aids on the DewateringPerformance of Biochemical Mixed Sludge

作　　者：罗含 徐辉 周毅 童佳 张四维 周昌群 Luo Han;Xu Hui;Zhou Yi;Tong Jia;Zhang Siwei;Zhou Changqun(Hunan Chengtong Tianyue Enviroment Protection Technology Co.,Ltd.,Yueyang 414002,China)

机构地区：[1]湖南诚通天岳环保科技有限公司,湖南岳阳414002

出　　处：《山东化工》2023年第12期255-257,261,共4页Shandong Chemical Industry

摘　　要：针对颗粒小、挥发性含量高、比阻值大的化学污泥以及脱水性能较差的生物污泥,我们综合了各种助滤剂的优势及配比组合使用,研究了介质类助滤剂对生化混合污泥的脱水性能的影响,实现提高过滤速度并且降低滤饼水分的双重效果。结果表明:SS=25000mg/L的生化混合污泥,分别经过PAC+PAM,PAC+造纸浆渣+PAM混凝反应,再经0.04 MPa真空抽滤12 min后,生化混合污泥的含水率相对于直接过滤的生化混合污泥分别下降了3.34%和5.8%。For chemical sludge with small particles,high volatile content,high specific resistance and biological sludge with poor dewatering performance,we have combined the advantages and ratios of various filter aids to study the media filter aids.The effect on the dewatering performance of the biochemical mixed sludge can achieve the dual effect of increasing the filtration speed and reducing the moisture of the filter cake.The results show that the biochemical mixed sludge with SS=25000 mg/L has undergone the coagulation reaction of PAC+PAM,PAC+papermaking pulp residue+PAM,and then 0.04 MPa vacuum filtration for 12 min.The filtered biochemical mixed sludge decreased by 3.34%and 5.8%,respectively.

关 键 词：生化混合污泥 介质类助滤剂 含水率 造纸浆渣 

分 类 号：X973[环境科学与工程—安全科学]