Pressure-driven membrane and ion exchange hybrid system for the treatment of wastewater containing sulfite and nitrite
Li, Haigang; Cao, Hongbin; Yang, Chuanfang
2016-02-25
发表期刊DESALINATION AND WATER TREATMENT
ISSN1944-3994
卷号57期号:10页码:4398-4405
摘要Denitrification of flue gas can generate a large amount of wastewater. Depending on the denitrification technology used, the water could contain a fair amount of sulfite and nitrite that need to be removed for water reuse or discharge. An integrated pressure-driven membrane and ion exchange (IX) process is therefore designed and tested for this purpose in this work. The process contains a combination of nanofiltration (NF), reverse osmosis (RO), and a mixed bed IX. NF was performed on a DL1812 membrane module at 2.0MPa using a simulated wastewater containing 63.0g/L Na2SO3 and 49.5g/L NaNO2. Sulfite was separated from nitrite with a retention rate of 92.0%, and its overall recovery efficiency achieved 91.09%. The recovery rate of nitrite in the permeate of NF was 71.06%, which was further elevated by RO using a SG1812 membrane module. A four-pass RO process was shown to be capable of recovering 98.15% of NaNO2 in the final retention. Finally, it was demonstrated that followed by IX treatment, sulfite and nitrite were successfully removed to meet the water surface discharge criteria, proving the feasibility of the hybrid NF-RO-IX system as a viable alternative for treating and reusing denitrification wastewater.
关键词Hybrid Membrane-ix System Wastewater Sulfite Nitrite Recovery
文章类型Article
WOS标题词Science & Technology ; Technology ; Physical Sciences
DOI10.1080/19443994.2014.995137
收录类别SCI
语种英语
关键词[WOS]NANOFILTRATION ; REMOVAL ; SINGLE
WOS研究方向Engineering ; Water Resources
WOS类目Engineering, Chemical ; Water Resources
项目资助者Chinese Academy of Sciences
WOS记录号WOS:000367846000012
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20255
专题湿法冶金清洁生产技术国家工程实验室
作者单位Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
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Li, Haigang,Cao, Hongbin,Yang, Chuanfang. Pressure-driven membrane and ion exchange hybrid system for the treatment of wastewater containing sulfite and nitrite[J]. DESALINATION AND WATER TREATMENT,2016,57(10):4398-4405.
APA Li, Haigang,Cao, Hongbin,&Yang, Chuanfang.(2016).Pressure-driven membrane and ion exchange hybrid system for the treatment of wastewater containing sulfite and nitrite.DESALINATION AND WATER TREATMENT,57(10),4398-4405.
MLA Li, Haigang,et al."Pressure-driven membrane and ion exchange hybrid system for the treatment of wastewater containing sulfite and nitrite".DESALINATION AND WATER TREATMENT 57.10(2016):4398-4405.
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