Title :
A study on kinetic experiment of decarburization and denitrification reaction of shallow surface flow constructed wetland
Author :
Ouyang, Feng ; Yue, Airu
Author_Institution :
Sch. of Earth Sci. & Environ. Eng., Southwest Jiaotong Univ. (SWJTU), Chengdu, China
Abstract :
In the shallow surface flow constructed wetland constructed in the laboratory, with domestic sewage as the study object, the most applicable conditions for removal of COD from the system are discussed to seek the rule of impact on denitrification capacity caused by hydraulic load. The optimal conditions for the removal of COD is obtained as 0.15m3/m2 · d hydraulic loading, the water height of 20 cm, COD influent concentration of 270mg / L. As the hydraulic load increases, the capacity of contaminant removal of the system firstly increases and then decreases. Based on such test data, a Level I reaction kinetic model is established.
Keywords :
geochemistry; hydrological techniques; water quality; COD influent concentration; COD removal; contaminant removal; decarburization; denitrification capacity; denitrification reaction; domestic sewage; hydraulic loading; kinetic experiment; level I reaction kinetic model; optimal conditions; shallow surface flow constructed wetland; test data; water height; Biological system modeling; Effluents; Kinetic theory; Load modeling; Microorganisms; Nitrogen; Surface contamination; organics; removal rate; shallow surface flow constructed wetland;
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.2012.6349583
