Premium
Influence of organic loading rate on integrated bioreactor treating hypersaline mustard wastewater
Author(s) -
Kang Wei,
Chai Hongxiang,
Yang Shiwei,
Du Guojun,
Zhou Jian,
He Qiang
Publication year - 2015
Publication title -
biotechnology and applied biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 70
eISSN - 1470-8744
pISSN - 0885-4513
DOI - 10.1002/bab.1396
Subject(s) - wastewater , effluent , bioreactor , chemical oxygen demand , pulp and paper industry , chemistry , anaerobic exercise , salinity , phosphate , biochemical oxygen demand , sewage treatment , environmental science , environmental engineering , biology , biochemistry , ecology , organic chemistry , physiology , engineering
Mustard tuber wastewater is characterized by high salinity and high organic content that is potentially detrimental to the biological treatment system and affects the treatment efficiency accordingly. The experiment used the integrated bioreactor to reduce much of the organics in mustard tuber wastewater, and found the influence of organic loading rate on effluent chemical oxygen demand (COD) and phosphate (PO 4 3− ‐P). Results showed that under the condition of 10–15 °C, 6 mg/L of dissolved oxygen, the reduction value of COD removal rate in anaerobic and aerobic area was 14.5% and 31.7% when the organic loading rate increased from 2.0 to 4.0 kg COD/m 3 /day. Therefore, an integrated bioreactor should take 2.0 kg COD/m 3 /day organic loading rate in mustard wastewater treatment if the effluent is expected to meet the third level of “Integrated Wastewater Discharge Standard” (GB 8978‐1996).