摘要
为探索煤矿采空区积水混凝处理方法和拓展积水资源化利用前景,进行了混凝剂聚合氯化铁(PFC)、聚合硫酸铝(PAS)和聚合氯化铝(PAC)单投及与助凝剂聚丙烯酰胺(PAM)和活化硅酸联投的试验研究。结果表明:采用单一混凝剂处理采空区积水效果有限,当PAC投加量为40 mg/L时,去浊率只达到86.7%,而PAS投加量为50 mg/L时,才接近相同效果;当联投PAC投加量为40 mg/L,PAM投加量为0.50 mg/L时,出水剩余浊度达到10.5NTU,去浊率达95.7%;而活化硅酸替代PAM,其投加量为50 mg/L时,才接近相同效果。
In order to explore the coagulation treatment method of coal mine goaf water and expand the utilization of water resource, the flocculation agents such as polymetric ferric chloride（PFC）、polyaluminium sulfate（PAS）、polyaluminium chloride（PAC） dosed alone and combined with the coagulant aids such as polyacrylamide（PAM） and activated silicic acid were conducted by the experiment. The results shows that the treatment effect of coal mine goaf water by dosing a flocaulation agent alone was limited, when the dosage of PAC was 40mg/L, the removal rate of turbidity was only 86.7 %, while the dosage of PAS was 50 mg/L to reach the same effect; When the combined dosage was PAC of 40 mg/L and PAM of 0.50 mg/L, the effluent turbidity was 10.5NTU and the removal rate could reach 95.7 %, while the dosage of activated silicic acid instead of PAM was 50 mg/L to achieve the same result.
出处
《能源环境保护》
2017年第2期8-10,16,共4页
Energy Environmental Protection
关键词
混凝工艺
采空区积水
混凝剂
助凝剂
coagulation process
goaf water
flocculation agents
coagulant aids
