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| 化学预处理-膜法处理电厂锅炉EDTA清洗废水的研究 | |
| 引用本文： | 王罗春,蒋爱国,李新学,丁桓如.化学预处理-膜法处理电厂锅炉EDTA清洗废水的研究[J].华东电力,2007,35(6):50-52. |
| 作者姓名： | 王罗春 蒋爱国 李新学 丁桓如 |
| 作者单位： | 1. 上海电力学院能源与环境工程学院,上海,200090 2. 上海吴泾热电厂,上海,200241 3. 太仓港环保发电有限公司,江苏,太仓,215433 |
| 基金项目： | 上海市重点学科建设项目 , 上海市教委资助项目 |
| 摘 要： | 采用化学预处理-膜法处理电厂锅炉EDTA清洗废水,首先加入NaOH溶液将废水pH值调至13以上去除金属离子,然后用硫酸将滤液pH值调至0.5以下以析出EDTA,再用纳滤和反渗透系统净化滤液以使出水达到排放要求.该工艺可考虑采用电厂纯水生产系统报废的反渗透膜件将处理成本降低至厂家可承受的范围内,具有很好的推广应用前景. |
| 关 键 词： | 电厂锅炉 EDTA清洗废水 纳滤 反渗透 化学预处理 |
| 文章编号： | 1001-9529(2007)06-0050-03 |
| 修稿时间： | 2007年1月30日 |
Treatment of boiler cleaning waste of EDTA by membrane technology with chemical pretreatment |
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| WANG Luo-chun,JIANG Ai-guo,LI Xin-xue,DING Huan-ru.Treatment of boiler cleaning waste of EDTA by membrane technology with chemical pretreatment[J].East China Electric Power,2007,35(6):50-52. | |
| Authors: | WANG Luo-chun JIANG Ai-guo LI Xin-xue DING Huan-ru |
| Abstract: | The process of treating the boiler cleaning waste of EDTA by membrane technology with chemical pretreatment is presented.Firstly,the NaOH was added to adjust the pH value of the waste to 13 in order to eliminate the metal ions;secondly,the sulphuric acid was put into the waste to ensure that its pH value was less than 0.5 so that the EDTA can be seperated out;at last,the nanofiltration and the reverse-osmosis system were used to purify the solution to make it meet discharge requirements.If the reverse-osmosis membrane abandoned from the pure water generating system of power plants can be used,the waste treatment cost could be acceptable and the treatment method will have a promising application prospect. |
| Keywords: | power plant boiler cleaning wastes of EDTA nanofiltration reverse-osmosis chemical pretreatment |
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