Premium
Development of the Sludge Thermal‐Drying Option for South West Water
Author(s) -
BROWN M. J.,
WHIPPS A. P.
Publication year - 1995
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1995.tb01481.x
Subject(s) - sewage sludge , raw material , waste management , environmental science , pelletizing , sewage treatment , production (economics) , water treatment , water content , business , environmental engineering , engineering , pellets , materials science , chemistry , geotechnical engineering , organic chemistry , economics , composite material , macroeconomics
Sewage‐sludge production in South West Water is predicted to more than double, to about 50000 dry tonnes per annum, by the turn of the century. Staff of South West Water Services have carried out a strategic review of sludge utilization and treatment options, and have developed a strategic planning computer model to assist in the financial evaluation of the many options which are available. The strategy allows for the provision of new raw sludge thermal‐drying facilities for the anticipated increase in sludge production. Trials were carried out with an indirect dryer system to develop and investigate the operational issues and use of the dried raw product. The initial trial produced a fluffy, low‐density material with poor storage and handling characteristics, apparently associated with the high‐fibre content of the sludge. The process has been modified to include pelletization.