Study on Treatment of Chromium Wastewater by Steel Slag

• 作者: Hui Liu Yanfeng Zhao
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 钢渣处理 含铬废水 Cr（VI） 等温吸附模型 废水处理 铬（VI） 去除率 影响因素
• 年，卷（期）: qxyhjyjywb_2013,（7）
• 页码范围: 47-49
• 页数: 3页
• 分类号: X757.05

摘要

[Objective] The research aimed to study Cr wastewater treatment by steel slag.[Method] Steel slag was used as adsorbent to remove Cr from wastewater,and influence factors of the Cr wastewater treatment by steel slag were studied.[Result] Removal rate of Cr(VI) by steel slag was quite low,and the highest removal rate only reached 8.9%.Cr(Ⅲ) removal by steel slag was quite effective.For 50 ml of Cr(VI) solution(100 mg/L),after reduction,0.30 g of steel slag(100 meshes) was added to oscillate for 35 min,and total Cr removal rate was up to 90%.Cr adsorption by steel slag was an exothermal process,and physical adsorption was dominant.Steel slag was suitable for treating acidic Cr wastewater,and its adsorption process on Cr followed Frenndlich isothermal adsorption model.[Conclusion] It could reach the aim of "waste treatment by waste"by using steel slag to treat Cr wastewater.