| 生物制剂配合-水解法直接深度处理含锰废水 |
| |
| 引用本文： | 裴斐,王云燕,柴立元,舒余德.生物制剂配合-水解法直接深度处理含锰废水[J].中南大学学报(自然科学版),2010,41(6). |
| |
| 作者姓名： | 裴斐 王云燕 柴立元 舒余德 |
| |
| 作者单位： | 中南大学冶金科学与工程学院; |
| |
| 基金项目： | 国家水体污染控制与治理科技重大专项项目，国家自然科学基金重点资助项目，教育部科技重大项目，湖南省自然科学基金资助项目，湖南省科技计划项目，湖南省节能减排科技重大专项项目 |
| |
| 摘 要： | 在含锰废水特性分析的基础上,开发生物制剂配合-水解法直接深度处理含锰废水新技术.含锰废水生物制剂配合体系中存在pH为8.80～11.18和12.28～13.08的2个缓冲区.废水pH从2.04升高至10.00,氢氧化钠的加入量为2.67～4.00 g/L.研究得到优化工艺条件:生物制剂加入量(即控制生物制剂与废水中锰的质量比)为0.2,配合时间为5 min,水解时间为5 min,温度为25 ℃,pH为10.0,聚丙烯酰胺(PAM)加入量为2.0 mg/L,可将废水中锰离子质量浓度从994 mg/L去除到0.127 mg/L,远低于<污水综合排放标准>(GB 8978-1996)的限值2.000 mg/L;含锰沉渣呈无定型及棒状,主要物相为CaSO4,渣中锰含量达14.16%,可返回生产系统回收锰;生物制剂通过其中的-OH,-COOH,-NH,-C=O,-SO3,-C-O(H)和C-Cl等基团与废水中的含锰离子配合,在水解过程中形成难溶物质沉淀分离.
|
| 关 键 词： | 生物制剂 锰 废水 沉渣 配合-水解 |
Direct and deep treatment of manganese-containing wastewater by biologics complexing-hydrolyzation |
| |
| PEI Fei,WANG Yun-yan,CHAI Li-yuan,SHU Yu-de.Direct and deep treatment of manganese-containing wastewater by biologics complexing-hydrolyzation[J].Journal of Central South University:Science and Technology,2010,41(6). |
| |
| Authors: | PEI Fei WANG Yun-yan CHAI Li-yuan SHU Yu-de |
| |
| Institution: | PEI Fei,WANG Yun-yan,CHAI Li-yuan,SHU Yu-de (School of Metallurgical Science and Engineering,Central South University,Changsha 410083,China) |
| |
| Abstract: | A novel technology for direct and deep treatment of manganese-containing wastewater by biologics was put forward based on the property analysis of manganese-containing wastewater.There are two pH buffer zones which are from 8.80 to 11.18 and from 12.28 to 13.08 in the complex system of manganese-containing wastewater and biologics.Theoretically,the required amount of sodium hydroxide for increasing pH from 2.04 to 10.00 is 2.67-4.00 g/L.The optimum condition are as follows: the mass ratio of biologics to ma... |
| |
| Keywords: | biologics manganese wastewater sludge complexing-hydrolyzation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
