MSpace - DSpace at UofM >
University of Manitoba Researchers (Research Publications) >
Research Publications (UofM Student, Faculty and Staff only access) >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1993/3003

Title: Wastewater biosolids: an overview of processing, treatment, and management
Authors: Oleszkiewicz, J
Mavinic, DS
Keywords: sludge
biosolids
process design
dewatering
digestion
BIOLOGICAL PHOSPHORUS REMOVAL
ANAEROBIC-DIGESTION
INHIBITION
MUNICIPAL
Issue Date: 31-Jan-2001
Citation: 0315-1468; CAN J CIVIL ENG, JAN 2001, vol. 28, no. , p.102 to 114.
Abstract: Treated as a valuable resource, municipal sludge, often today referred to as biosolids, is processed through a variety of novel unit operations leading to a safe, aesthetically pleasing, and sought-after product. The design engineer is concerned first with the ultimate disposal and utilization of the biosolids, providing at least two options for the final disposal. Volume reduction, stabilization or vector attraction reduction, and pathogen inactivation are the key goals; process trains combining them into one unit process are the target technologies. Drying and pelletization are now being applied at much smaller plants because of the introduction of indirect dryers, which have fewer air pollution problems than the direct dryers still used at some larger plants. Stabilization of biosolids in newer plants is more often combined with disinfection at thermophillic temperatures, in anaerobic and particularly in aerobic regimes. For the smallest plants, dewatering is now available in drying bags or vacuum drying beds, and larger plants benefit from an array of new devices offering sludge cakes as dry as 22 to greater than or equal to 40% total solids. The ultimate dryness will depend on the quality of sludge, polymer conditioning program, and machine parameters. Emphasis on cost reduction, with simultaneous demand for an excellent quality end product, calls for innovative and case-specific solutions that go beyond the treatment plant and also address the quality of industrial-commercial discharges to the municipal sewers.
URI: http://hdl.handle.net/1993/3003
Appears in Collection(s):Research Publications (UofM Student, Faculty and Staff only access)

Files in This Item:

File Description SizeFormat
Oleszkiewicz_Wastewater_biosolids.pdf217.79 kBAdobe PDFView/Open
View Statistics

Items in MSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! MSpace Software Copyright © 2002-2010  Duraspace - Feedback