LIANG Yuan,LIU Di,ZHOU Lin-qiang,et al.Transformation and Operation of Sludge Deep Dewatering Project in Suzhou Hi-tech Venous Industrial Park[J].China Water & Wastewater,2021,37(12 12):141-144.
Transformation and Operation of Sludge Deep Dewatering Project in Suzhou Hi-tech Venous Industrial Park
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
12 12
Page:
141-144
Column:
Date of publication:
2021-06-17
- Abstract:
- There are five sewage treatment plants in Suzhou high-tech zone. The total design treatment capacity is 28×104 m3/d, and the sludge output is about 180 t/d. However, the sludge disposal capacity is insufficient, which cannot meet the sludge treatment requirements, so it is necessary to carry out technical transformation. At the beginning of 2020, the weighbridge, receiving workshop, receiving warehouse, external power supply, water supply and drainage system were transformed, and the deep dewatering belt dehydrator was added. After the transformation, the treatment capacity of the project is 100 t/d (water content is 80%), and the water content of sludge is reduced from 80% to 60% by medicament conditioning and mechanical pressing. Through deep dewatering, the calorific value of the sludge also increases significantly, and the properties become more stable. Finally, the sludge will be transported to Suzhou Huaneng Power Plant for coordinated incineration. The project runs stably, with output sludge water content of 58%-60% and sludge reduction rate of 35%-40%.
Last Update:
2021-06-17