黑龙江科技大学学报2024，Vol.34Issue(6)：852-857,6.DOI:10.3969/j.issn.2095-7262.2024.06.005
煤矿全生命周期矿井水的混凝特性
Coagulation characteristics behind mine water based on whole life cycle of coal mine
摘要
Abstract
This paper is aimed at exploring the coagulation characteristics behind mine water in the whole lifecycle of coal mine.By employing the coal mine water in HuaiHe Energy Group as the research object,the study conducts an coagulation experiment on influencing factors including PAC dosage,PAM dosage,dosing interval between PAC and PAM,flocculating velocity gradient,flocculating reaction time.The results demonstrate that the turbidity removal rates per unit dose of PAC of mine water in different lifecycle stages are 2.14,4.52 and 33.04 NTU/(mg·L),respectively,indicating a gradual enhance-ment in the coagulation performance of mine water as the lifecycle of the coal mine extends.The range of each factor in the initial stage of coal mine production are 351,43.9,58.1,66.2,40.6,the middle stage are 24.5,19,6.9,5.6,6.1,and the late stage are 4.6,1.4,1.6,1.4,3.6,respectively.Throughout the lifecycle of coal mine,the influence of PAC dosage on coagulation effect is dominant a-mong all factors,while the secondary influence factors are flocculation velocity gradient in the initial stage,PAM dosage in the mid-production stage,and flocculation reaction time in late stage.关键词
矿井水/全生命周期/混凝特性/正交混凝试验Key words
mine water/whole lifecycle/flocculent mechanism/orthogonal coagulation experiment分类
资源环境引用本文复制引用
高杰..煤矿全生命周期矿井水的混凝特性[J].黑龙江科技大学学报,2024,34(6):852-857,6.基金项目
中国煤炭科工集团科技创新创业资金专项重点项目(2023-ZD003) （2023-ZD003）
