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- Title
Experimental study on municipal sludge dewatering capacity by using quicklime and slag.
- Authors
Qiang, Xue; Yi-jun, Chen
- Abstract
Sludge dewatering was an important part of sludge treatment and disposal. Building a dewatering skeleton played a vital role in sludge dewatering. Experimental study on municipal sludge dewatering capacity was conducted by using quicklime and slag. Research indicated that sludge with 83% moisture content was conducive to establish the skeleton. Slag with large, small, or even particle diameters were disadvantageous to the skeleton formation, the effective combination range for the particle diameter was from 0.075 to 0.85 mm. When the sludge with 83% moisture content is added with 15% quicklime, it can reach the maximum dewatering rate and meet the health and epidemic-prevention safety index. The moisture content was lower than 60% with the following conditions: 83% moisture content of sludge, 15% quicklime, ≥80% slag, and 3,000–4,200 separation factors which satisfied various engineering applications such as landfills, ecological slope protection, and landscaping.
- Subjects
SLUDGE management; LIME (Minerals); SLAG; FRACTAL dimensions; PREVENTION of epidemics
- Publication
Desalination & Water Treatment, 2015, Vol 54, Issue 6, p1499
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.889607