Minimising Sludge Production at Water-Treatment Plants
Author:
R. Gregory, CEng, MIChemE (Member)1*Consultant and Senior Process Engineer, respectively, WRc Processes, Swindon, UK. and
G. Dillon, CEng, MIChemE
The paper identifies the mass and volume components of waterworks’sludge. The mass components arise from (i) the quality of the raw water treated, (ii) the chemicals used for treatment, and (iii) the efficiency with which those chemicals are utilised. Operation of the water-treatment processes and choice of treatment chemicals has an impact on the volume of sludge produced.
The paper also identifies the roles in sludge mass and volume minimisation of (a) the choice and management of raw-water source, (b) the choice and management of coagulant and other treatment chemicals, sludge recycle and coagulant recovery, and (c) the choice and operation of water and sludge-treatment processes.
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posted by Castro at 9:30 AM
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Waste water treatment plant
erection & commissioning
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