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The effects of aging for improving wastewater sludge electro-dewatering performances
Hang Lv,Daoguang Liu,Siqi Xing,Dandan Wu,Fang Wang,Jiakuan Yang,Xu Wu,Wenbiao Zhang,Xiaohu Da 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.80 No.-
The effects of sludge aging on improving sludge electro-dewatering (SED) performance were studied,with the sludge properties variation during aging process investigated. Sludge electro-dewateringperformances were explored by constant voltage method (25 V) on various samples. The organic matterin the extracellular polymeric substances (EPS) was gradually consumed and decomposed during sludgeaging process. Under identical electro-dewatering conditions, dewaterability and time-space yield ofaged sludge achieved 49.33% solid content and 223.46 kg m 2 h 1 respectively. Such results indicate thebeneficial effects of sludge aging process in terms of SED performances, which needs further explorationinto fundamental mechanisms.