Dewatered sewage sludge of sewage treatment plant was studied by self-made experimental device dewatering based on electro-osmotic-advanced oxidation process which would be influenced by the dosage of persulfate

proportion of ferric salt and persulfate

voltage gradient and the thickness of dewatered sewage sludge. The results showed that the combination of electro-osmosis-advanced oxidation technology can improve the dewater ability. The water content can be reduced to below 60% with sludge amount of 140 g

persulfate dosage of 100 mg·(g DS)-1

Fe2+/persulfate of 1:1

mechanical pressure of 17.59 kPa and controlling initial voltage of 11 V·cm-1. Electro-osmotic-advanced oxidation process can ensure fully use of oxidation ability of to improve the sludge dewater ability based on the mechanism of reduction of electric field and electronic metastasis reaction

making persulfate fully activated compared with sludge dewatering by activated persulfate. Better than the traditional electro-osmosis sludge dewatering

more amount sludge can be treated one time and sludge cake uniformity can be highly improved for the subsequent transportation and settlement.