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- Title
Increase in efficiency of separating pollution from sewage sludge through the pressure filtration process.
- Authors
Kowalczyk, Mariusz; Kamizela, Tomasz
- Abstract
The article discusses the issue of dewatering sludge from municipal wastewater. Separating solids from sewage sludge constitutes one of the initial steps in managing sewage sludge for further use or processing. The process of removing water from sewage sludge is particularly significant due to its high content in the raw sludge. This translates into problems with transporting and storing sludge. Additionally, the high water content relates to a reduction in the calorific value of the sludge. This paper focuses on the effect of adding polyelectrolytes and solid mineral substances on increasing the efficiency of the sludge dewatering process and eliminating total carbon from the oversedimentary water. The technical aspects of preparing sludge prior to dewatering are described on the basis of studies conducted on municipal sewage sludge. This research focused on conditioning and separating solids from wastewater coming from a selected treatment plant in terms of achieving the lowest final hydration and lowering the amount of total organic carbon in the leachate. The change in sludge compressibility after conditioning, the efficiency and speed of the filtration process were also analysed to reveal the mechanisms involved in the dewatering process.
- Subjects
SEWAGE sludge; SLUDGE conditioning; POLLUTION; HARD rock minerals; SEWAGE; POLYELECTROLYTES
- Publication
Desalination & Water Treatment, 2023, Vol 301, p181
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2023.29523