西南科技大学学报
西南科技大學學報
서남과기대학학보
JOURNAL OF SOUTHWEST CHINA INSTITUTE OF TECHNOLOGY
2012年
2期
31-34,47
,共5页
宋美云%杨海君%王会镇%唐云
宋美雲%楊海君%王會鎮%唐雲
송미운%양해군%왕회진%당운
海水提铀%丙烯腈%废水处理
海水提鈾%丙烯腈%廢水處理
해수제유%병희정%폐수처리
Extracting uranium from seawater%Acrylonitrile%Treatement of wasterwater
在海水提铀螯合树脂的研究和制备中,会产生大量高浓度丙烯腈废水,其CODCr,高达110770mg·L-1。以该废水为研究对象,采用Fe-C微电解法、Fenton-UV氧化法和KMn04氧化等物理化学方法对其进行处理,发现单一方法的COD凸去除率较低,将上述方法进行串联,对废水进行处理,结果表明串联的方式可以明显提高废水的CODCr,去除率。采用Fe-C微电解法、Fenton-UV氧化法和KMnO。氧化法3种方法串联的方式处理高浓度丙烯腈废水时,CODCr。的去除率高达99.1%,CODc,降至957mg·L-1,BOD5为406mg·L-1,BOD5/CODCr为0.42,显著提高了水样的可生化性,达到了化纤工业废水的三级排放标准(GB8978-1996)。研究结果为海水提铀螯合树脂制备中高浓度丙烯腈废水的处理提供了一条有效的技术途径。
在海水提鈾螯閤樹脂的研究和製備中,會產生大量高濃度丙烯腈廢水,其CODCr,高達110770mg·L-1。以該廢水為研究對象,採用Fe-C微電解法、Fenton-UV氧化法和KMn04氧化等物理化學方法對其進行處理,髮現單一方法的COD凸去除率較低,將上述方法進行串聯,對廢水進行處理,結果錶明串聯的方式可以明顯提高廢水的CODCr,去除率。採用Fe-C微電解法、Fenton-UV氧化法和KMnO。氧化法3種方法串聯的方式處理高濃度丙烯腈廢水時,CODCr。的去除率高達99.1%,CODc,降至957mg·L-1,BOD5為406mg·L-1,BOD5/CODCr為0.42,顯著提高瞭水樣的可生化性,達到瞭化纖工業廢水的三級排放標準(GB8978-1996)。研究結果為海水提鈾螯閤樹脂製備中高濃度丙烯腈廢水的處理提供瞭一條有效的技術途徑。
재해수제유오합수지적연구화제비중,회산생대량고농도병희정폐수,기CODCr,고체110770mg·L-1。이해폐수위연구대상,채용Fe-C미전해법、Fenton-UV양화법화KMn04양화등물이화학방법대기진행처리,발현단일방법적COD철거제솔교저,장상술방법진행천련,대폐수진행처리,결과표명천련적방식가이명현제고폐수적CODCr,거제솔。채용Fe-C미전해법、Fenton-UV양화법화KMnO。양화법3충방법천련적방식처리고농도병희정폐수시,CODCr。적거제솔고체99.1%,CODc,강지957mg·L-1,BOD5위406mg·L-1,BOD5/CODCr위0.42,현저제고료수양적가생화성,체도료화섬공업폐수적삼급배방표준(GB8978-1996)。연구결과위해수제유오합수지제비중고농도병희정폐수적처리제공료일조유효적기술도경。
In the preparation of chelate resin for extracting uranium from seawater, it has produced a large amount of high-concentrated acrylonitrile wastewater, of which the CODcr is up to 110 770 mg.L-1. In this paper, the wastewater was treated with Fe - C micro-electrolysis, Fenton - UV oxidation, and KMnO4 oxidation. The results show that the removal rates of CODcr are very low, when single method was applied to treat the wastewater. Treatment of the wastewater via combination of the three methods could obviously increase the removal rates of CODcr. When the wastewater was treated via combination of Fe - C micro-e- lectrolysis, Fenton -UV oxidation, and KMnO4 oxidation, the removal rate of CODcr is up to 99. 1%, CODcr is 957 mg .L-1 ,BODs is 406 mg.L-1 , BODs/CODcr is 0.42. This improves the biodegradability of wastewaster, meets the grade -Ⅲ standard for discharge of chemical fibre industrial wasterwater. The results can provide an effective technological path for treatment of wastewater containing high concentration acrylonitrile in the preparation of chelate resin for extracting uranium from seawater.