摘要
以自来水为原水,采用纳滤(NF)与低压反渗透(RO)工艺进行锅炉补给水处理研究。考察了一级NF及RO工艺、二级NF及RO工艺、NF-RO串联和RO-NF串联工艺对锅炉补给水的软化除盐效果。结果表明,NF和RO分别在0.75MPa和1.0Mpa压力下,回收率20%时处理效果最好。一级NF和一级RO可满足中低压热水锅炉补给水的水质要求;二级NF和二级RO、NF-RO和RO-NF工艺均可满足中低压蒸汽锅炉补给水的水质要求;串联工艺处理效果优于二级NF,且比二级RO节能;RO-NF和二级RO工艺可满足高压锅炉补给水的水质要求。
Boiler feed water treated by nanofiltration (NF) and low-pressure reverse osmosis (RO) was studied with running water as raw water. Results showed that one-pass NF and RO technology can meet the feed water criteria of middle and low pressure hot water boiler; two-pass NF and RO technology, NF-RO and RO-NF technology can meet the feed water criteria of middle and low pressure steam boiler while RO-NF series-connection technology and two-pass RO technology can meet the feed water criteria of high pressure boiler.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2006年第2期95-97,共3页
Environmental Science & Technology
关键词
NF
低压RO
锅炉补给水
nanofiltration(NF)
low-pressure reverse osmosis (RO)
boiler feed water
