絮凝剂对钻井废液的无污染处理  

Non-pollution Treatment of Drilling Waste Fluid by Flocculant

作　　者：王玉飞[1,2] 王献杰 许春馨 刘倩倩 闫龙 李健[1,2] 陈娟 WANG Yu-fei;WANG Xian-jie;XU Chun-xin;LIU Qian-qian;YAN Long;LI Jian;CHEN Juan(School of Chemistry and Chemical Engineering,Yulin University,Yulin 719000,China;Shaanxi Key Laboratory of Low Metamorphic Coal Clean Utilization,Yulin 719000,China)

机构地区：[1]榆林学院化学与化工学院,榆林719000 [2]陕西省低变质煤洁净利用重点实验室,榆林719000

出　　处：《当代化工》2022年第8期1773-1777,共5页Contemporary Chemical Industry

基　　金：国家自然科学基金项目(项目编号:21663034);陕西省科技统筹创新工程计划项目(项目编号:2016KTZDGY08-04-01);陕西省重点科技创新团队(项目编号:2020TD-031);陕西省科技厅重点研发计划项目(项目编号:2021GY-165),陕西省科技厅重点产业创新链项目(项目编号:2021ZDLGY13-05);陕西省教育厅产业化项目(项目编号:20JC039)。

摘　　要：选取榆林某厂钻井废液为处理对象,研究絮凝剂对钻井废液的无污染处理,考察单一絮凝剂和混合絮凝剂、混合絮凝剂的用量、不同起始pH值对钻井废液处理的影响,并对处理后的剩余污泥进行脱水研究。结果表明:在pH=14的条件下,向钻井废液中加入混合絮凝剂(3 g聚合氯化铝、5 g氧化钙、0.1 g聚丙烯酰胺)对钻井废液的处理效果最佳,然后利用恒压过滤使过滤后污泥中的含水率降为49.8%,相对于未过滤污泥中的含水率91.7%减少了41.9%,有效降低了剩余污泥中的含水率。The waste liquid of a Yulin factory was used as the treatment object to study the non-pollution treatment of the drilling waste liquid by flocculant. The effect of the single and mixed flocculant, the dosage of mixed flocculant,the different initial pH value on the treatment of the drilling waste liquid was investigated, and the dewatering of the remaining sludge after treatment was studied. The experimental results showed that, under the conditions of pH=14,adding 3 g polyaluminum chloride, 5 g calcium oxide and 0.1 g polyacrylamide into the drilling waste liquid, the treatment effect was the best. Then the water content of the filtered sludge was reduced by 41.9% by constant pressure filtration.

关 键 词：钻井废液 絮凝剂 污泥脱水 过滤 无害化处理 

分 类 号：X789[环境科学与工程—环境工程]