Commissioning and Operation of Constructed Wetland Project for Purification of Tail Water from Municipal Wastewater
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
9 9
Page:
94-100
Column:
Date of publication:
2020-05-01
- Keywords:
- Times New Roman"; font-size: 10pt; ">tail water from municipal wastewater treatment plant; constructed wetland; advanced purification; commissioning and operation
- Abstract:
-
A composite constructed wetland system with treatment capacity of 5 000 m 3/d was constructed for advanced purification of tail water from Yixing municipal wastewater treatment plant. The fillers of the system were mainly building waste blocks.The wetland system was successfully commissioned after 46 days of operation, and then it was operated with full capacity. After nearly six months (186 days) of operation, the average removal rates of TN, NH4 + -N ,NO3 - - N, TP and COD by the system during the stable period were 40%,31.1%,46.4%,72% and 12.5%,respectively.The composite constructed wetland system performed well in advanced purification of the tail water from Yixing municipal wastewater treatment plant, which effectively removed nutrients of nitrogen and phosphorus, and achieved the purpose of “ waste control by waste ” . The system provides a new reference for advanced purification of tail water from the wastewater treatment plant.
Last Update:
2020-05-01