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This project aims to study the feasibility of treating wastewater from the wastewater treatment process of dyeing yarn with a constructed wetland. With the cooperation of the factory case study of a rural district. Khon Kaen The sewage treatment plant has a cooling pond already. The physical characteristics as a pond for a total of eight wells and a flow rate of the sewage system is 82 m3 / day by the parameters analyzed include pH DO NH3TKN NO3 TSS BOD TP and COD is the BOD is used. In the design area of the wetland system requirements. Which is equal to 231 m2
, and a survey of the area to find suitable areas for the construction of wetland system. Then select the area of the end of the dry pond treatment system. It has an area of approximately 500 m2 of construction by the soil and reinforced earthen dam water. And the highest treatment and Asiatic Amazon, then left for 30 days to allow the system to a stable state. The water samples were collected to analyze the characteristics of the waste water after construction. The analysis parameters include pH DO NH3 TKN NO3 TSS BOD TP COD and Cl-
from water samples to analyze the characteristics of the waste water after construction. By comparing the characteristics of the waste water into and out of the wetland system. Found effective in the treatment of COD BOD TKN and TP of pond drying equals 35.60%, 35.66%, 76.18%, 79.1% respectively, the performance of the constructed wetland were 12.90%, 12.90%, 7.34%, 14.49% respectively, and the effective integration of these two systems is equal. 43.95% 43.96% 77.93% 82.09% respectively, also found that the ability to treat COD BOD TKN and TP of wetland values 3.12 0.34 0.09 and 0.01 g / m2.day respectively, which are quite low. This may be due to the duration of the study can not be limited to trees, the main mechanism for healing, growth and reproduction as a fully dense enough quantities.
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