SU Zhi-sheng,LIN Pei-zhen,LUO Jian-biao,et al.Discussion and Summary on the Design of Sludge Dewatering, Pumping and Storage System[J].China Water & Wastewater,2021,37(4 4):76-81.
Discussion and Summary on the Design of Sludge Dewatering, Pumping and Storage System
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
4 4
Page:
76-81
Column:
Date of publication:
2021-02-17
- Abstract:
- The systems of sludge dewatering, pumping and storage are important for sludge treatment and disposal. The design and optimization suggestion of dewatering process, sludge feeding equipment, dosing system and sludge-water separation valve were introduced through a project of sludge treatment and disposal in Nanning. As to the sludge pumping system, the technical characteristics of screw conveyor, sludge bin and material level detection were also discussed. Furthermore, the integrated arch breaker device were put forward, and the sludge pumping features and its pumping failure-solution were described in details. With regard to the sludge storage system， the design points of piping and feeding-inlet, the optimization of arch breaker device and its heat balance calculation of the hydraulically-driven system were analyzed. Since the project was put into operation, the water content of sludge was decreased to 80%, the daily transportation capacity of sludge reached 66.85 m3/d and its sludge storage capacity was more than 200 m3. The sludge reduction was realized. Finally, the technoeconomic analysis was conducted, which could provide reference for the similar projects.
Last Update:
2021-02-17