中文摘要：

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。

英文摘要：

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 manganese is 0.2,the cooperation time is 5 min,the hydrolysis time is 5 min,the temperature is 25 ℃,pH is 10.0,polyacrylamide（PAM） is 2 mg/L.Under the above optimum conditions,manganese concentration decreases from 994 to 0.127 mg/L in laboratory scale experiment,which is much less than integrated wastewater discharge standard（GB 8978—1996）（2.000 mg/L）.The surface morphology of manganese-containing sludge is amorphous and rod and the main phase is CaSO4.The proportion of manganese in the sludge reaches 14.16%,indicating that the sludge can be reused for manganese recovery.In the hydrolyzation process,manganese ions combine with the functional groups including —OH,—COOH,—NH,—C=O,—SO3,—CO（H） and C—Cl in biologics,to form precipitation.