10.1021/acs.iecr.8b01019.s001 Hang Lv Hang Lv Fang Wang Fang Wang Daoguang Liu Daoguang Liu Yanlin Zhang Yanlin Zhang Yueyuan Gu Yueyuan Gu Du Yuan Du Yuan Siqi Xing Siqi Xing Xu Wu Xu Wu Jiakuan Yang Jiakuan Yang Wenbiao Zhang Wenbiao Zhang Keith Scott Keith Scott Effects of Piecewise Electric Field Operation on Sludge Dewatering: Phenomena and Mathematical Model American Chemical Society 2018 sludge resistance variation modeling results Piecewise Electric Field Operation LSV experiment sludge cake electro-dewatering processes Mathematical Model Electro-dewatering EDW 2018-06-04 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Effects_of_Piecewise_Electric_Field_Operation_on_Sludge_Dewatering_Phenomena_and_Mathematical_Model/6479921 Electro-dewatering (EDW) is an energy-efficient method for sludge dewatering. In this study, effects of piecewise electric field operation on EDW were investigated by experiments and simulation. Operational parameters were studied mainly in terms of sludge resistance variation during electro-dewatering process, which were evaluated by linear sweep voltammetry (LSV) analysis. Simulation of the sludge cake electro-dewatering processes was developed and validated, based upon time-dependent experimental data of electric currents and filtrate weights. The modeling results were in good agreement with experiments. It was proved by experimental and modeling results that the piecewise operation has positive effects on key performances of EDW devices, that is, limited water content, space-time yield, and mass specific energy consumption.