Open AccessStudy on the treatment of livestock farm wastewater by falling water aeration constructed wetland
Author(s) -
Yuelei Wang,
Yuping Han,
Xinyue Zhou,
Mengyuan Liang,
Pingping Chu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/6/062052
Subject(s) - aeration , wastewater , environmental science , environmental engineering , nitrification , simultaneous nitrification denitrification , wetland , phosphorus , livestock , sewage treatment , nitrogen , pulp and paper industry , waste management , chemistry , ecology , biology , engineering , organic chemistry
The livestock farms produce wastewater with high concentration of nitrogen and phosphorus through water rinsing, which is treated by building constructed wetlands. In order to improve the removal efficiency of nitrogen, the author set up a water tank, through falling water aeration to obtain a higher concentration of oxygen to promote nitrification and denitrification reaction. Experiments showed that the removal rates of BOD, NH3-N, TN and TP were 88%, 79.9%, 90.8% and 91.1% respectively. The results show that the experimental removal effect is good, and the results have practical significance for the treatment of aquaculture wastewater.