title: Preparation of ceramic-corrosion-cell fillers and application for cyclohexanone industry wastewater treatment in electrobath reactor.
abstract: As new media, ceramic-corrosion-cell fillers (Cathode Ceramic-corrosion-cell Fillers - CCF, and Anode Ceramic-corrosion-cell Fillers - ACF) employed in electrobath were investigated for cyclohexanone industry wastewater treatment. 60.0 wt% of dried sewage sludge and 40.0 wt% of clay, 40.0 wt% of scrap iron and 60.0 wt% of clay were utilized as raw materials for the preparation of raw CCF and ACF, respectively. The raw CCF and ACF were respectively sintered at 400°C for 20 min in anoxic conditions. The physical properties (bulk density, grain density and water absorption), structural and morphological characters and toxic metal leaching contents were tested. The influences of pH, hydraulic retention time (HRT) and the media height on removal of COD(Cr) and cyclohexanone were studied. The results showed that the bulk density and grain density of CCF and ACF were 869.0 kg m(-3) and 936.3 kg m(-3), 1245.0 kg m(-3) and 1420.0 kg m(-3), respectively. The contents of toxic metal (Cu, Zn, Cd, Pb, Cr, Ba, Ni and As) were all below the detection limit. When pH of 3-4, HRT of 6h and the media height of 60 cm were applied, about 90% of COD(cr) and cyclohexanone were removed.
authors.affiliation: Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, 250100 Jinan, China.
authors.forename: Suqing
authors.initials: S
authors.lastname: Wu
authors.forename: Yuanfeng
authors.initials: Y
authors.lastname: Qi
authors.forename: Yue
authors.initials: Y
authors.lastname: Gao
authors.forename: Yunyun
authors.initials: Y
authors.lastname: Xu
authors.forename: Fan
authors.initials: F
authors.lastname: Gao
authors.forename: Huan
authors.initials: H
authors.lastname: Yu
authors.forename: Yue
authors.initials: Y
authors.lastname: Lu
authors.forename: Qinyan
authors.initials: Q
authors.lastname: Yue
authors.forename: Jinze
authors.initials: J
authors.lastname: Li
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry; D057919:Biological Oxygen Demand Analysis; D002516:Ceramics / Q000737:chemistry*; D000077215:Clay; D003343:Corrosion; D003512:Cyclohexanones / Q000302:isolation & purification*; D004566:Electrodes; D004572:Electrolysis; D007220:Industrial Waste / Q000032:analysis / Q000517:prevention & control*; D007501:Iron / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D012722:Sewage / Q000737:chemistry; D013499:Surface Properties; D014874:Water Pollutants, Chemical / Q000302:isolation & purification*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods*
chemical_list: D000538:Aluminum Silicates; D003512:Cyclohexanones; D007220:Industrial Waste; D012722:Sewage; D014874:Water Pollutants, Chemical; C036468:cyclohexanone; D007501:Iron; D000077215:Clay