Invention Grant
- Patent Title: Liquefying de-watered sludge preparatory to drying
- Patent Title (中): 液化脱水污泥准备干燥
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Application No.: US12041005Application Date: 2008-03-03
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Publication No.: US08011605B2Publication Date: 2011-09-06
- Inventor: Owen Patrick Ward , Ajay Singh
- Applicant: Owen Patrick Ward , Ajay Singh
- Applicant Address: CA Waterloo, Ontario
- Assignee: Lystek International Inc.
- Current Assignee: Lystek International Inc.
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Anthony Asquith Corp
- Priority: GB0704310.2 20070306; CA2608506 20071029
- Main IPC: B02C19/00
- IPC: B02C19/00
Abstract:
Sewage sludge that has been de-watered to 25% solids is subjected to a combination of shearing and heating that liquefies the sludge, and drops its viscosity to below 12,000 cP. The fact of liquefaction prepares the sludge such that subsequent drying can be done more cost-effectively than hitherto. After drying, the dried sludge can be incinerated.
Public/Granted literature
- US20080302889A1 LIQUEFYING DE-WATERED SLUDGE PREPARATORY TO DRYING Public/Granted day:2008-12-11
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