Journal
WATER ENVIRONMENT RESEARCH
Volume 81, Issue 11, Pages 2344-2352Publisher
WATER ENVIRONMENT FEDERATION
DOI: 10.2175/106143009X407276
Keywords
capillary suction time test; dewatering testing; synthetic sludge; product development; wastewater
Funding
- Ola Sawalha's PhD project
- Seafield Wastewater Treatment Plant
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The capillary suction time (CST) test can be used as an alternative to predict the otherwise expensive, hard-to-run specific resistance to filtration test. One of the major drawbacks of the CST test, however, is relatively high variability of test results. The aim of this study was, therefore, to improve the product design by testing the effectiveness of using a funnel sealant to reduce variability. Use of a funnel sealant resulted in increased test precision. There was a reduction of up to 63% in the coefficient of variation and a substantial improvement in the predictability of the specific resistance to filtration test. Water Environ. Res., 81, 2344 (2009).
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