JINDun,DINGChun-jian.Application of the MUNITANK Process in a Municipal WWTP with Limited Land Use in Northern Region[J].China Water & Wastewater,2024,40(22):68-72.
Application of the MUNITANK Process in a Municipal WWTP with Limited Land Use in Northern Region
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第22期
Page:
68-72
Column:
Date of publication:
2024-11-17
- Keywords:
- MUNITANK process; large and medium?sized WWTP; nitrogen and phosphorus removal; impact load resistance; land conservation
- Abstract:
- The Dalian Quanshui River phase Ⅱ wastewater treatment plant(WWTP)，designed for a capacity of 10.5×104 m3/d, faces challenges such as significant fluctuation of water quantity and quality, limited land availability, and low temperature. It employs the modified unified integrated tank (MUNITANK) as the secondary treatment process to cope with impact load, enhance biological nitrogen and phosphorus removal, and reduce the addition of external carbon sources, while using an intensive, integrated tank layout to save space. Tertiary treatments including high-density settling tanks, cloth filters, and ultraviolet disinfection tanks further ensure the treatment effectiveness. Years of operational results show that all effluent quality indicators consistently meet the first level A criteria in Discharge Pollutant Standards for Municipal Wastewater Treatment Plants (GB 18918-2002), with an investment of 2 190.5 yuan/m3 and operational energy consumption of 0.26 kW·h/m3, both below the national average. This demonstrates the MUNITANK process’s efficiency, applicability, and cost-effectiveness for large and medium?sized WWTPs facing significant shock loads, limited land, and stringent treatment requirements, thus providing insights for similar WWTPs.
Last Update:
2024-11-17