RUANYan-xia,YANGWen-wen,WEIHong-bin.Application of High?pressure Belt Filter and Low Temperature Sludge Dryer System in Sludge Deep Dewatering[J].China Water & Wastewater,2024,40(8):119-124.
Application of High?pressure Belt Filter and Low Temperature Sludge Dryer System in Sludge Deep Dewatering
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第8期
Page:
119-124
Column:
Date of publication:
2024-04-17
- Keywords:
- sludge advanced dewatering; high-pressure belt filter; low temperature sludge dryer; sludge moisture content
- Abstract:
- Influences of sludge property, moisture content of inlet sludge and outlet sludge moisture content on the specific moisture extraction of low temperature sludge dryer have been experimentally studied. On this basis, the operating costs, the specific moisture evaporation rate (SMER), initial investment and sludge treatment capacity of the combined process (about 80% moisture content of inlet sludge) were discussed. The experiment results show that the high?pressure belt can reduce the inlet sludge moisture content and improve the sludge porosity in low temperature sludge dryer section, and increase specific moisture extraction and SMER by above 7.2% and 5.0%, respectively. The results of technical and economic analysis show that the combined process can save operating costs and initial investment by over 33.4% and 30.3%, respectively, which could be more significant with the increase of the outlet sludge moisture content in the low temperature drying section. The sludge treatment capacity of the excited project could be doubled by adding high-pressure belt continuous sludge deep dewatering equipment. Therefore, the combination of high-pressure belt filter for continuous deep dewatering and low temperature sludge dryer system has notably advantages on operating efficiency, operating costs, initial investment and sludge processing capacity, compared with using low?temperature sludge dryer technology separately.
Last Update:
2024-04-17