铅酸蓄电池废水反渗透处理浓水的沉淀去除工艺开发  

Developing aprecipitation and removal technology on concentrated wastewater from the RO process of lead acid battery

作　　者：李红艺[1,2] 郑凯[1] 曹莹[1] 张大伟[1] 丁克强[1] 

机构地区：[1]南京工程学院环境工程学院,南京211167 [2]南京理工大学环境与生物工程学院化工污染控制与资源化江苏省高校重点实验室,南京210094

出　　处：《膜科学与技术》2014年第4期82-86,共5页Membrane Science and Technology

基　　金：江苏省环保厅项目(2012007);中央高校基本科研业务费专项资金资助(30920130122007)

摘　　要：采用调节pH值、依次加入硫化钠、硫酸亚铁、聚合氯化铝、聚丙烯酰胺工艺,对铅酸电池厂反渗透处理浓水进行铅离子、镉离子的有效去除,进行了详细深入的研究.结果表明,浓水pH调节为9.5,依次加入200mg/L Na2S、50mg/L FeSO4、10mg/L聚合氯化铝(PAC)、5mg/L聚丙烯酰胺(PAM)时,浓水中Pb2+、Cd2+被沉淀剂去除效率达最高,分别为98.2%、95.8%.反渗透浓水处理后的水质,达到地表水三级排放标准.该浓水处理方法具有操作简便、成本低廉、处理工艺稳定可靠的特点,解决了反渗透浓水难以处理的难题.反渗透浓水处理成本为4元/m3.The techniques including adjusting pH values,adding Na2 S,FeSO4,aluminum polychlorid （PAC） and polyacrylamide（PAM） in sequence were deeply researched in detail to efficiently remove lead and cadmium ion in concentrated water from reverse osmosis effluents during treating wastewater of lead acid battery.The results showed when the pH values,the added doses of Na2 S,FeSO4,PAC and PAM were respectively equaled to 9.5,200 mg,50 mg,10 mg and 5 mg in per liter concentration water,the removal rate of lead and cadmium ion from concentrated water of reverse osmosis reached maximum,that is 98.2％ and 95.8％.The quality of treated concentrated water can reach Surface Water Three Categories Standard.Furthermore,the researched method is characterized by low energy consumption,simple reliable and stable operation.The expenses of treating concentrated water was 4 Yuan per dun.

关 键 词：反渗透浓水 硫化钠 聚丙烯酰胺 聚氯化铝 硫酸亚铁 金属离子 

分 类 号：X76[环境科学与工程—环境工程]