有机絮凝剂对渣土废泥浆脱水效果影响

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英文篇名：Effects of Organic Flocculant on Dehydration of Waste Residue 作者：邓明莉 英文作者：DENG Ming-li;China Railway 18th Bureau Group the 4TH Engineering Co.,LTD; 关键词：渣土废泥浆 ; 有机絮凝剂 ; 含水率 ; 絮凝效果 英文关键词：Waste Residue;;Organic Flocculant;;Moisture Content;;the Effect of Flocculation 中文刊名：TLZB 英文刊名：Journal of Shijiazhuang Institute of Railway Technology 机构：中铁十八局集团第四工程有限公司; 出版日期：2019-03-15 出版单位：石家庄铁路职业技术学院学报 年：2019 期：v.18;No.72 基金：天津市自然科学基金重点项目(16JCZDJC39100) 语种：中文; 页：TLZB201901013 页数：6 CN：01 ISSN：13-1359/G 分类号：67-72

摘要

针对地铁盾构出来的渣土废泥浆污染环境,不便施工的现状,本文研究了有机絮凝剂(阴离子型聚丙烯酰胺、阳离子型聚丙烯酰胺以及两者复掺)对不同含水率下的渣土废泥浆絮体含水率、上清液浊度以及絮体大小等指标的影响。研究结果表明:不同种类的有机絮凝剂在不同掺量下均能改善渣土废弃浆脱水效果,并且针对不同含水率的废泥浆存在着最佳掺量不同;随着渣土废泥浆含水率的降低,有机絮凝剂的最佳掺量均逐渐增加;采用单掺阳离子型聚丙烯酰胺絮凝剂可明显提高渣土废泥浆的脱水效果。
        In view of the situation that the shield waste from subway construction is polluting the environment seriously and has made an impact on construction, in this paper, the effects of organic flocculant(anionic polyacrylamide, cationic polyacrylamide and their complex blending) on the moisture content of sludge floc, turbidity of supernatant and floc size under different moisture contents were studied. Different kinds of organic flocculants can improve the dewatering effect of waste sludge in different dosages, and there are different optimum dosages for waste mud with different water content; with the decrease of water content of waste residue, the optimum dosage of organic flocculation is gradually increased; single-doped cationic polyacrylamide flocculant can significantly improve the dewatering effect of the waste residue.

引文

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