非金属矿
非金屬礦
비금속광
NON-METALLIC MINES
2015年
3期
80-82
,共3页
肖利萍%刘燕%裴清煌%白际驰
肖利萍%劉燕%裴清煌%白際馳
초리평%류연%배청황%백제치
膨润土%钢渣%含Zn2+酸性矿山废水%吸附%沉淀%协同作用
膨潤土%鋼渣%含Zn2+痠性礦山廢水%吸附%沉澱%協同作用
팽윤토%강사%함Zn2+산성광산폐수%흡부%침정%협동작용
bentonite%slag%acid mine wastewater containing Zn2+%adsorption%precipitate%synergistic reaction
通过震荡吸附试验，对比研究膨润土、钢渣、膨润土-钢渣复合粉末状材料、膨润土-钢渣复合颗粒材料对含Zn2+酸性矿山废水处理效果，确定最佳吸附材料及其最佳反应条件，结果表明：8∶2膨润土-钢渣复合粉末状材料对含Zn2+的酸性矿山废水处理效果最好；对于pH值为3~4、Zn2+质量浓度为50 mg/L的酸性矿山废水，当复合吸附剂用量为7 g/L、吸附时间为120 min时，对酸性矿山废水中Zn2+去除率可达98.43%，处理后水的pH值为7.8，可达标排放；膨润土-钢渣复合材料既释放碱度中和酸，同时又对Zn2+发生了吸附、沉淀、絮凝聚沉协同作用。
通過震盪吸附試驗，對比研究膨潤土、鋼渣、膨潤土-鋼渣複閤粉末狀材料、膨潤土-鋼渣複閤顆粒材料對含Zn2+痠性礦山廢水處理效果，確定最佳吸附材料及其最佳反應條件，結果錶明：8∶2膨潤土-鋼渣複閤粉末狀材料對含Zn2+的痠性礦山廢水處理效果最好；對于pH值為3~4、Zn2+質量濃度為50 mg/L的痠性礦山廢水，噹複閤吸附劑用量為7 g/L、吸附時間為120 min時，對痠性礦山廢水中Zn2+去除率可達98.43%，處理後水的pH值為7.8，可達標排放；膨潤土-鋼渣複閤材料既釋放堿度中和痠，同時又對Zn2+髮生瞭吸附、沉澱、絮凝聚沉協同作用。
통과진탕흡부시험，대비연구팽윤토、강사、팽윤토-강사복합분말상재료、팽윤토-강사복합과립재료대함Zn2+산성광산폐수처리효과，학정최가흡부재료급기최가반응조건，결과표명：8∶2팽윤토-강사복합분말상재료대함Zn2+적산성광산폐수처리효과최호；대우pH치위3~4、Zn2+질량농도위50 mg/L적산성광산폐수，당복합흡부제용량위7 g/L、흡부시간위120 min시，대산성광산폐수중Zn2+거제솔가체98.43%，처리후수적pH치위7.8，가체표배방；팽윤토-강사복합재료기석방감도중화산，동시우대Zn2+발생료흡부、침정、서응취침협동작용。
Comparative study was conducted using shake adsorption test with particle composites, including bentonite, slag, and powder-like bentonite-slag material, for treatment of acid mine wastewater containing Zn2+; the optimum adsorption material and best reaction condition were determined. Results showed that powder-like bentonite-slag material performed best. For acid mine wastewater with pH value of 3 to 4 and concentration of 50 mg/L, the removal ratio could reach 98.43%when adsorption agent dose was 7 g/L and adsorption time was 120 min;The pH value of treated water was 7.8 and met discharge standard. It was revealed that bentonite-slag material could release alkali to neutralize acid, and at the same time adsorb, precipitate and lfocculate Zn2+.
