Year: 2022
Type: article
Abstract: In this study, the treating performance with the two stage of constructed wetland in the treatment of the effluent of tandoku-shori johkasou and the gray water was estimated and the possibility of the advanced treatment of domestic wastewater with the constructed wetland was examined.The obtained results were as follows.The average removal efficiency of BOD was 92.2 ± 8.0% throughout the experiment, and those of COD, TN and NH4-N were 69.4 ± 6.9, 65.9 ± 1 9.3 and 77.7 ± 17.7% , respectively.Stable processing efficiencies were achieved in BOD, COD, TN and NH4-N.The treating efficiencies of the second stage of the constructed wetland were higher than those of the first stage of constructed wetland.Although TN removal efficiency in the first stage of vertical flow constructed wetland was low in the former period, the change of the vertical flow constructed wetland to the hybrid constructed wetland in the first stage of the constructed wetland the latter period greatly improved the treatment efficiency of TN.It was shown that the application of the constructed wetland as the advanced treatment of Tandoku -shori johkasou was sufficiently possible.
DOI: 10.51048/00000207
Language: Japanese
Subfield: Waste Management and Disposal
Field: Environmental Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7207601692
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