DENG Mi,YU Guo-long,YANG Er-kui,et al.Pharmaceutical Production Wastewater Treatment by Micro-electrolysis, UASB, Two-stage A/O and Flocculation[J].China Water & Wastewater,2020,36(24 24):155-159.
Pharmaceutical Production Wastewater Treatment by Micro-electrolysis, UASB, Two-stage A/O and Flocculation
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
24 24
Page:
155-159
Column:
Date of publication:
2020-12-17
- Keywords:
- pharmaceutical wastewater; micro-electrolysis; UASB; two-stage A/O; flocculation
- Abstract:
- A combined process of iron-carbon micro-electrolysis, UASB, two-stage A/O, flocculation was adopted to treat pharmaceutical production wastewater which contains refractory benzene and its derivatives. The process selection basis, the major process flow and removal effect were introduced. The operation result shows that the removal rates of COD, BOD5, NH3-N and SS were 97.1%, 92.4%, 88.9%, and 86.4%, respectively, and the corresponding effluent concentrations were 280 mg/L, 130 mg/L, 40 mg/L and 95 mg/L, respectively. The effluent quality are superior to the third level in table 4 of Integrated Wastewater Discharge Standard (GB 8978-1996) and could meet the intake water quality requirements of sewage pipelines, with the operation cost of 3.45 yuan/m3.
Last Update:
2020-12-17