Relationships between sludge specific resistance, coefficient of compressibility, blinding coefficient and vacuum filter yield

The relationships between an activated sludge's particle size distribution and its specific resistance were investigated. Particle size distributions were rearranged by sludge storage, replacing sludge supernatant with alum sludge supernatant, and by polymer conditioning. Specific resistance was found to increase with decreasing mean particle size. The blinding coefficient (B) was used to show the influence of mean particle size on filter cloth blinding. Blinding was shown to occur only for mean diameters less than 40u. The use of the blinding coefficient also allowed the prediction of maximum and minimum values of specific resistance and showed blinded sludges to have underestimated specific resistance values. The coefficient of compressibility was shown to decrease with increasing mean particle size. The use of the coefficient of compressibility to predict vacuum filter yield was shown to be a valid relationship.

Name thesis:degree_name

M.S.

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Sanitary Engineering

Department dc:contributor.department

Sanitary Engineering

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1983

Author dc:creator

• Goodman, Gregory

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Handle dc:identifier.uri

https://hdl.handle.net/10919/118347

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/118347