摘要
针对煤矿疏干水净化过程中V型滤池滤料板结问题,通过对石英砂滤料表观分析、酸溶解板结物试验及离子组分分析,确定板结物(可溶于盐酸部分)质量占比平均值为7.27%,滤料板结物主要成分为碳酸氢钙,同时含少量硫酸钙、碳酸钙、碳酸镁、氢氧化镁等无机物;板结主要成因为水中碳酸氢根、碳酸根、pH的波动(升高);提出板结滤料清洗措施以及日常运维减缓滤料板结的措施,为解决疏干水处理滤料板结难题提供了参考。
In response to the problem of V-shaped filter material agglomeration in the purification process of coal mine drainage water,through the analysis of quartz sand filter material appearance,acid dissolution test of the precipitate,and ion composition analysis.The average mass proportion of the precipitate(soluble in hydrochloric acid)is determined to be 7.27%.The main component of the filter material precipitate is calcium bicarbonate,and it also contains a small amount of inorganic substances such as calcium sulfate,calcium carbonate,magnesium carbonate,and magnesium hydroxide;The main reason for hardening is the fluctuation(increase)of bicarbonate,carbonate,and pH in water.Measures for cleaning the slaking filter material and daily operation and maintenance to slow down the slaking of filter material were proposed,providing a reference for solving the problem of filter material slaking in drainage water treatment.
作者
闫慧
翟学东
Yan Hui;Zhai Xuedong(Production Management Department,Zhongtian Hechuang Energy Co.,Ltd.,Inner Mongolia,017000;Safe Drinking Water and Sewage Disposal Technology Research and Development Center,Ordos Anxintai Environmental Protection Technology Co.,Ltd.,Inner Mongolia,017000)
出处
《当代化工研究》
CAS
2024年第9期97-99,共3页
Modern Chemical Research
基金
中天合创能源有限责任公司技术开发项目“煤化工废水近零排放系统优化与关键技术开发”(项目编号:ZTHG-2023-02-1183)
中央引导地方科技发展资金项目“百城百园”行动、“梯级氧化耦合动态膜滤深度保障优质饮水技术及产业化”(项目编号:2020ZY0068)
“科技兴蒙”行动重点专项项目“创建呼包鄂国家自主创新示范区项目—西部地区复杂水源格局下城镇供水安全保障关键技术、装备研发与产业化”(项目编号:2020XM04)。
关键词
疏干水
V型滤池
石英砂
滤料板结
drained water
V filters
quartz sand
filter material hardening
