Open AccessDesign and operation effect of corn starch wastewater treatment project
Author(s) -
Wei Hong,
Zengguo Zhang,
Shihua Liang,
Guangbo Hong,
Xiaopei Jin,
Zhuang Hu,
Hua Li,
Changwei Yu,
Huihui Chen
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/358/2/022060
Subject(s) - effluent , wastewater , pulp and paper industry , chemistry , anaerobic exercise , sewage treatment , starch , environmental science , environmental engineering , food science , biology , engineering , physiology
The corn starch wastewater was treated by the combination of “IC anaerobic + two-stage AO biochemical + modified Fenton”. The design parameters and treatment effects of the main construction sections of the project were introduced. The operation results of the project show that the combined process has a good treatment effect on corn starch wastewater. In the case where the average concentration of COD in the influent water is 17640 mg/L, the average concentration of NH 3 -N is 91.1 mg/L, and the average concentration of TN is 1266 mg/L. The average concentration of the COD, NH 3 -N and TN in the effluent water after treatment are 36mg/L, 1.2mg/L and 11.6mg/L, respectively, which meets the design standard requirements. The process control method of using some high-concentration organic wastewater beyond the anaerobic section can achieve the standard treatment of total nitrogen without the need of external supplementary carbon source, which has significant economic benefits.