工业水处理
工業水處理
공업수처리
INDUSTRIAL WATER TREATMENT
2015年
5期
19-22
,共4页
谢义忠%段宇浩%冯绮澜%田家宇%江圣辉%赵志伟%陈杰%杨文杰%陈伟培
謝義忠%段宇浩%馮綺瀾%田傢宇%江聖輝%趙誌偉%陳傑%楊文傑%陳偉培
사의충%단우호%풍기란%전가우%강골휘%조지위%진걸%양문걸%진위배
混凝沉淀%浸没式超滤%短流程%膜污染
混凝沉澱%浸沒式超濾%短流程%膜汙染
혼응침정%침몰식초려%단류정%막오염
coagulation and sedimentation%immersed ultrafiltration%shortened process%membrane fouling
分别针对沉淀池进水、沉淀池中部水样、沉淀池出水开展了超滤中试试验,研究了在不同混凝沉淀段位耦合时超滤膜出水水质的变化情况以及超滤膜的污染特性。结果表明,对于浊度、CODMn、UV254等水质指标而言,不同段位混凝沉淀-超滤的耦合工艺对水质的净化作用基本相当。但从膜污染上看,耦合段位设置在沉淀池进水端时,超滤膜的污染非常严重;而设置在出水端则可明显减缓膜污染;将耦合段位设置在沉淀池中部时,膜污染速率虽略有升高但幅度不大,同时可以显著减小水厂的占地面积。
分彆針對沉澱池進水、沉澱池中部水樣、沉澱池齣水開展瞭超濾中試試驗,研究瞭在不同混凝沉澱段位耦閤時超濾膜齣水水質的變化情況以及超濾膜的汙染特性。結果錶明,對于濁度、CODMn、UV254等水質指標而言,不同段位混凝沉澱-超濾的耦閤工藝對水質的淨化作用基本相噹。但從膜汙染上看,耦閤段位設置在沉澱池進水耑時,超濾膜的汙染非常嚴重;而設置在齣水耑則可明顯減緩膜汙染;將耦閤段位設置在沉澱池中部時,膜汙染速率雖略有升高但幅度不大,同時可以顯著減小水廠的佔地麵積。
분별침대침정지진수、침정지중부수양、침정지출수개전료초려중시시험,연구료재불동혼응침정단위우합시초려막출수수질적변화정황이급초려막적오염특성。결과표명,대우탁도、CODMn、UV254등수질지표이언,불동단위혼응침정-초려적우합공예대수질적정화작용기본상당。단종막오염상간,우합단위설치재침정지진수단시,초려막적오염비상엄중;이설치재출수단칙가명현감완막오염;장우합단위설치재침정지중부시,막오염속솔수략유승고단폭도불대,동시가이현저감소수엄적점지면적。
Aiming at the influent in sedimentation tank,the water samples from the central part of the sedimentation tank,and the effluent from the sedimentation tank,respectively,pilot-scale experiments have been carried out. When coupling with coagulation/sedimentation at different sections,the changes of the ultrafiltration(UF) membrane effluent water quality and the fouling characteristics of ultrafiltration membrane are investigated. The results show that,as far as turbidity,CODMn and UV254 are concerned,the coupling process of coagulation/sedimentation-ultra filtration at different sections is basically equivalent to the purification of water quality. However ,from the viewpoint of membrane fouling,it is found that when the coupling section was set at the inlet of sedimentation tank,the membrane fouling of the UF membrane was very serious. On the other hand,if the coupling section was set at the outlet of the sedimentation tank,the membrane fouling was significantly reduced. When the coupling section was set at the central part of the sedimentation tank,the membrane fouling rate was not too serious,although a slightly higher. Meanwhile,the floor area of the water plant can be reduced remarkably.