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目的:研究过滤在水净化处理过程中的作用。方法:采用聚合氯化铝(PAC)和阴离子型聚丙酰胺(PAM)复合沉降剂处理煤矿矿井水,通过装有无烟煤和石英砂的过滤柱,观察过滤在水净化中所起的作用。结果:发现过滤不仅可除去水中细小的悬浮物质,而且还有降低水中铝、铜、铅、铁、锰及氟化物的作用。结论:4份含铝0.650 mg/L～0.896 mg/L的净化矿井水,经过滤后铝含量均达到国家饮水标准限量值以下,其含量在0.020 mg/L～0.042 mg/L范围内,铜、锰、铁三种元素分别由滤前的1.81 mg/L、3.30 mg/L及1.10 mg/L降低到均<0.05 mg/L,铅由滤前的2.3 mg/L降低到<0.01 mg/L。
Objective: To study the role of filtration in water purification process. Methods: Coal mine water was treated with polyaluminum chloride (PAC) and anionic polyacrylamide (PAM) as composite settling agent, and the effect of filtration on water purification was observed through a filter column with anthracite and quartz sand. Results: The filter was found not only to remove small suspended solids in water but also to reduce the effects of aluminum, copper, lead, iron, manganese and fluoride in water. CONCLUSION: Four purified mine water containing 0.650 mg / L ~ 0.896 mg / L of aluminum is below the national drinking water standard limit after filtration, and its content is within the range of 0.020 mg / L to 0.042 mg / L. , Manganese and iron decreased from 1.81 mg / L, 3.30 mg / L and 1.10 mg / L to <0.05 mg / L respectively before the pretreatment, and lead decreased from 2.3 mg / L to <0.01 mg / L.