柱式MBR膜污染分析及清洗工艺优化
发布时间：2018-08-15 17:55
【摘要】：采用SEM-EDS对九江石化生活污水和炼油污水回用系统中MBR装置中被污染超滤膜的分析,并对被污染MBR膜性能恢复分别进行了清洗剂种类、清洗剂浓度和清洗工艺进行优化。结果表明:MBR膜面的主要污染物为Fe(OH)_3、Cu(OH)_2、Al(OH)_3和少量胶体Si污染;pH=1的柠檬酸、草酸+EDTA、盐酸清洗MBR膜通量分别为80%、86.4%和90%;采用pH=13的碳酸钠、次氯酸钠+氢氧化钠和氢氧化钠清洗被污染MBR膜通量恢复率分别为84.53%、90.23%和94.42%;p H=1的草酸+EDTA和p H=13的Na OH进行交替清洗后的膜通量可恢复到初始通量的91.88%。
[Abstract]:SEM-EDS was used to analyze the contaminated ultrafiltration membrane in the MBR plant of domestic sewage and refinery sewage reuse system of Jiujiang Petrochemical Company. The performance recovery of contaminated MBR membrane was optimized by cleaning agent type, concentration of cleaning agent and cleaning process, respectively. The results showed that the main pollutants on the membrane surface of Fe (OH) were Fe (OH) _ 3Cu (OH) _ 2AL (OH) _ 3 and a small amount of colloidal Si contaminated citric acid, oxalic acid and hydrochloric acid cleaning MBR membrane flux were 80 ~ 86.4% and 90%, respectively. The membrane flux recovery rates of sodium hypochlorite sodium hydroxide and sodium hydroxide cleaning contaminated MBR membrane were 90.23% and 94.42% respectively. The membrane fluxes of EDTA oxalate and NaOH of pH 13 could be recovered to 91.88% of the initial flux after alternate cleaning of sodium hypochlorite sodium hydroxide (NaOH) and sodium hydroxide (NaOH).
【作者单位】： 中国石油化工股份有限公司九江分公司机动处;
【基金】：中国石油化工股份有限公司资助项目(G6001-15-14ZS0414)
【分类号】：TQ051.893
本文编号：2184972
[Abstract]:SEM-EDS was used to analyze the contaminated ultrafiltration membrane in the MBR plant of domestic sewage and refinery sewage reuse system of Jiujiang Petrochemical Company. The performance recovery of contaminated MBR membrane was optimized by cleaning agent type, concentration of cleaning agent and cleaning process, respectively. The results showed that the main pollutants on the membrane surface of Fe (OH) were Fe (OH) _ 3Cu (OH) _ 2AL (OH) _ 3 and a small amount of colloidal Si contaminated citric acid, oxalic acid and hydrochloric acid cleaning MBR membrane flux were 80 ~ 86.4% and 90%, respectively. The membrane flux recovery rates of sodium hypochlorite sodium hydroxide and sodium hydroxide cleaning contaminated MBR membrane were 90.23% and 94.42% respectively. The membrane fluxes of EDTA oxalate and NaOH of pH 13 could be recovered to 91.88% of the initial flux after alternate cleaning of sodium hypochlorite sodium hydroxide (NaOH) and sodium hydroxide (NaOH).
【作者单位】： 中国石油化工股份有限公司九江分公司机动处;
【基金】：中国石油化工股份有限公司资助项目(G6001-15-14ZS0414)
【分类号】：TQ051.893
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