pH 值及温度对皮革废水短程硝化的影响

pH 值及温度对皮革废水短程硝化的影响©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.http://www.cnki.netpH值及温度对皮革废水短程硝化的影响李宜娟3李彦春33(山东轻工业学院轻化与环境工程学院,山东济南250353)摘要:在SBR反应器中,控制其他条件不变,研究温度和pH值对皮革废水进行短程硝化的影响。结果发现:温度为(31±1)℃,pH值为718～812时,亚硝化效果相对最好;另外,系统在加入碳酸氢钠-氢氧化钠缓冲液后,亚硝化率相对提高很多,说明,pH值是影响亚硝化的一个重要因素。关键词:pH值;皮革废水;短程硝化中图分类号TS59文献标识码AInfluenceofpHandTemperatureonShortcutNitrosificationofLeatherWastewaterLiYijuan,LiYanchun(SchoolofLightChemistryandEnvironmentalEngineering,ShandongInstituteofLightIndustry,Jinan250353,China)Abstract:InfluenceoftemperatureandpHontheshortcutnitrosificationoftheleatherwastewaterwasstudiedinasequencingbatchreactor(SBR),withtheotherfactorssteady.Theresultsshowthattheoptimalnitrosificationconditionisthatthetempera2tureis(31±1)℃andthepHis7.8～8.2.Inaddition,thenitrosificationisenhancedalotafterthesodiumbicarbonate-sodi2umhydroxidebuffersolutionisaddedintothesystem.TheresultsindicatethatpHisanimportantfactoraffectingthenitrosifica2tion.Keywords:pH;leatherwastewate