EGSB反应器处理高浓度废水的可行性研究蒋萍萍

EGSB*1211．5410042．100029EGSBPVA。COD2．2～12．9g/L5．4～51．79g/L·d。30g/L·dCOD96%。pH7．0pHVFA。30g/L·d38L。EGSBVFAStudyofTreatmentforHigh－concentrationWastewaterinEGSBＲeactorJIANGPingping1YEYe2ZHANGWenjie11．GuangxiScientificExperimentCenterofMiningMetallurgyandEnvironmentSchoolofEnvironmentalScienceandEngineeringGuilinUniversityofTechnologyGuilinGuangxi541004AbstractPVA－gelbeadsareaddedtotheEGSBreactortotreathigh－concentrationwastewaterinthisexperi-ment．TheinfluentCODlevelisincreasedstepwisefrom2．2g/Lto12．9g/Lunderstableinfluentandtheorganicloadingrateischangedrelatively5．4～51．79g/L·d．TheCODremovalratecanreach96%withanorganicloadingrateof30g/L·dinthereactor．WhiletheorganicloadingrateisincreasedandtheinfluentpHiskeptat7．0thechangesofeffluentpHandVFAareobservedthustheappropriategrowthenvironmentformethanogenscanbedetermined．Inacertainrangethegasproductionrateisincreasedwiththeincreaseofinfluentloadingrate．Whentheorganicloadingratereaches30g/L·dthegasvolumecanbeincreasedtoitspeak38L．KeyWordsEGSBhighconcentrationwastewaterorganicloadingrateVFA0、1。AF、AFBEGSB2。EGSB3－45－8。EGSBPVA9。CODpHVFA。11．1EGSB109．0LD=17．5cm115cm。2。511～52193964cm90cm。。31℃。*51108108411610752013GXNSFCA0190181298014－140901Z021KH2012ZD004。·1·2015411January2015IndustrialSafetyandEnvironmentalProtection11．2VFApH。EGSB。1．3pH、、COD、VFA。CODGB11914—89pHGB/T6920—86。VFATCDGC－112A。22．11。8115d。1～610h7～86h。1～7COD2．2～12．9g/LOLＲ5．4～52g/L·d8CODCOD6．9g/LOLＲ27．5g/L·d。pH7．0。1/dpHpHCOD/g·L－1HＲT/hOLＲ/g·L－1·d－111～77．008．24±0．052．2±0．1105．4±0．3228～147．008．02±0．154．2±0．01010．07±0．02315～207．007．93±0．095．2±0．11012．49±0．20421～357．008．01±0．177．5±0．11017．91±0．21536～447．007．94±0．1410．3±0．31024．83±0．69645～677．008．03±0．1712．4±0．21029．78±0．47768～717．007．31±0．0712．9±0．0651．79±0．20872～1157．007．51±0．316．9±0．1627．54±0．272．2OLＲCODCOD。1～6HＲT10hCOD2～12g/LOLＲ5．4～29．8kg/m3·dCOD。5COD96%OLＲ25g/L·d。6OLＲ29．78g/L·dCOD92%。7～8HＲT6h。7OLＲ51．5g/L·dCOD92%80%。COD8COD6．9g/LOLＲ27．5g/L·d14dCOD91%。OLＲOLＲ25g/L·dCOD29．78g/L·dCODCOD96%51．5g/L·dCOD。29．78g/L·d。2．3pHVFApHpH7．0。。68～71dCODpH2OLＲVFApH。2HＲT10h6h、pHHＲT6hVFA。8COD12．9g/L6．9g/LHＲT6h。2EGSBPVA。2．46L3·2·2VFApH。6～40L。638L29．78g/L·d。751．79g/L·d34LVFApH。OLＲ27．54g/L·dpH12L10d26L。3。70%30%CO2。1～60．24m3/kg。CO2。33130kg/m3·d。251．79g/L·dVFApHCOD。338L70%30%CO2。1．J．201332247－51．2．J．20134267784－7786．3ATawfikaAOhashiHHarada．Sewagetreatmentinacombinedup－flowanaerobicsludgeblanketUASBdown－flowhangingspongeDHSsystemJ．Biochemi-calEngineeringJournal200629210－219．4YinLiuKaisongZhangＲuneBakkeetal．Membranein-stallationforenhancedup－flowanaerobicsludgeblanketUASBperformanceJ．JournalofBioscienceandBioen-gineering201311－5．5．UASBJ．2013281－8386．6．J．20113735－6．7．EGSBJ．201127196－97．8．EGSBJ．201228368－69．9ZhangWenjieWangDunqiuKogaYasunorietal．PVA－gelbeadsenhancegranuleformationinaUASBreactorJ．BioresourceTechnology2008998400－8405．10．HＲTUASBJ．201263113674－3679．1990。2013－11－26·3·