| Treatment of desulfurization wastewater with Membrane process |
| Authors： YIN Naa，LIU Feia ,b，XING Weihong a |
| Units： a. Research center of Membrane Science and Technology, Nanjing University of Technology, |
| KeyWords： ceramic membrane; integrated process; desulfurization wastewater |
| ClassificationCode：TQ028.8 |
| year,volume(issue):pagination： 2010,1(6):0-0 |
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Abstract： |
| Abstract：Membrane process of ceramic ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) was integrated to treat the desulfurization wastewaters with the aim of reusing the resources. The results showed that sulfur (S) in the wastewater can be rejected by ceramic membrane at 100% and clear permeate were obtained. NF membrane can separate ammonium thiosulfate from ammonium thiocyanate effectively with a rejection of 95% and a permeation of more than 100%. RO process was applied to dewater the ammonium thiocyanate solutions, after four-stage treatment, the total rejection of ammonium thiocyanate reached 99%, the RO permeate was with a conductivity below 171ms·cm-1 and can be recycled to dialysis process of NF. The treatment process of desulfurization wastewater studied by this research can separate and purify the valuable sulfur and by-product salt from the wastewater, creating economic value, reducing the wastewater, reusing the water. The study provides a new process for the resourced treatment of the desulfurization wastewater. |
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AuthorIntro： |
| 殷娜（1984－），女，江苏连云港市人，博士生，研究方向：膜分离，Email：nanawin@163.com。通讯联系人：邢卫红，电话025－83172288，Email：xingwh@njut.edu.cn |
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