EFFECTS OF SOLIDS CONCENTRATION ON CAPILLARY SUCTION TIME AS A MEASUREMENT METHOD OF WASTEWATER SLUDGE DEWATERABILITY
Capillary Suction Time (CST) measures the travel time for a given distance on a chromatography paper by the liquid drained from a sludge sample. It provides a laboratory assessment on dewaterability of the sludge. High CST suggests it would be difficult to remove the liquid from the sludge. The objectives of this research were to establish a quantitative relationship between the CST and solids concentrations. Experimental samples included undigested sludge, mesophilic aerobically digested sludge, and thermophilic aerobically digested sludge, all from wastewater treatment plants. Sludge dilution used the supernatant liquid from centrifuged sludge samples. The research found that, for each of the tested sludge samples, a strong linear correlation existed between the measured CST and the solids concentration (R2 ranged from 0.80 to 0.96). However, the coefficients (slopes and intercepts) of the correlation were sample-specific. Findings from this research suggested that, although a linear correlation exists between CST and solids concentrations, the coefficients to correct for the effect of solids concentration should be developed for each type of sludge that has unique characteristics.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Research Article
Publication date: 01 January 2004
More about this publication?
- Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed. A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.
WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
- Subscribe to this Title
- Membership Information
- About WEF Proceedings
- WEFTEC Conference Information
- Learn about the many other WEF member benefits and join today
- Ingenta Connect is not responsible for the content or availability of external websites