Title :
The study on micro-electrolytic degradation of the CODCr of secondary effluent water from refinery
Author :
Hao Yang ; Miao Zhang ; Fuping Wu ; Wenyan Song
Author_Institution :
Sch. of Environ. & Municipal Eng., Lanzhou Jiaotong Univ., Lanzhou, China
Abstract :
In this paper, the degradation of CODcr of secondary effluent from refinery is completed by iron-carbon micro-electrolysis with the purpose of recycling. The optimal process parameters are determined, with the mass ratio of Fe / C being 3:2, the dosage amount of sponge iron being 15g, the reaction time being 2.5 hours, the reaction pH being 3, the range of the filler particle size being 1-2mm. Operated with optimal parameters, the removal rate of the CODcr of secondary effluent can be as high as 75% or more, improving the biodegradability of wastewater.
Keywords :
carbon; geochemistry; iron; oxygen; pH; wastewater treatment; water quality; C; CODCr microelectrolytic degradation; CODCr removal rate; Fe; Fe-to-C mass ratio; O; iron-carbon microelectrolysis; optimal process parameters; particle size; reaction pH; reaction time; refinery; secondary effluent water; size 1 mm to 2 mm; sponge iron dose; time 2.5 hour; wastewater biodegradability; Compounds; Degradation; Effluents; Electrodes; Grain size; Iron; Wastewater; CODcr removal rate; micro-electrolysis; refinery wastewater;
Conference_Titel :
Geomatics for Integrated Water Resources Management (GIWRM), 2012 International Symposium on
Conference_Location :
Lanzhou, Gansu
Print_ISBN :
978-1-4673-1283-7
DOI :
10.1109/GIWRM.2012.6349631
