Results 131 to 140 of about 1,666 (179)

SLUDGE DEWATERING BY FREEZING

Journal AWWA, 1971
The authors contend that sludge freezing can be a practical process for dewatering—when done at the right rate with a sludge that has been adequately prepared.
Gary S. Logsdon, E. Edgerley
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Dewatering of Sewage Sludge

Drying Technology, 2006
Dewatering of sewage sludges is usually carried out using belt filter presses or centrifuges. The ability to remove water from sludges by mechanical dewatering is a property of both the sludge and the equipment used for dewatering. Newer high-solids centrifuges can remove more water than a belt press but require a higher chemical conditioning dose. The
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Dewatering of Activated Sludge

1981
Activated sludge is often conditioned with the aid of polyelectrolyte to a highly flocculent state to facilitate dewatering by filtration. Activated sludges in this condition have excellent drainage characteristics when subject to low solids stress, as in gravity drainage at low filter loadings. When subject to large hydraulic gradients, however, as in
T. J. Casey, J. Daly
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Sludge dewatering

C R C Critical Reviews in Environmental Control, 1980
Richard I. Dick, Roy O. Ball, John T. Novak   +2 more
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Enhanced technology based for sewage sludge deep dewatering: A critical review

Water Research, 2021
Wj Zhang, Dongsheng Wang, Weijun Zhang   +2 more
exaly  

Enhanced technology for sewage sludge advanced dewatering from an engineering practice perspective: A review

Journal of Environmental Management, 2022
Yajun Wu
exaly  

A review of flocculants as an efficient method for increasing the efficiency of municipal sludge dewatering: Mechanisms, performances, influencing factors and perspectives

Science of the Total Environment, 2022
Andżelika Krupińska, Magdalena Matuszak, Sylwia Włodarczak   +2 more
exaly  

Flocculation and Dewatering of Sludges

1978
In recent years, with the development of sewage treatment plants for municipal waste, the production of biological as well as chemical sludges has given rise to increasing problems in dewatering (Dick 6,7). Under many operating conditions, the use of a filterbelt press or a centrifuge is atttractive from economic and space considerations (Sleeth 19 ...
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Sludge dewatering

2017
Bhola R. Gurjar, Vinay Kumar Tyagi
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Classification and Dewatering of Sludges

1988
The disposal of dredged sediments has become an ecological problem in Hamburg as well as in other seaports since these sediments have turned out to be contaminated with heavy metals (Table 1). The traditional solution of using the dredged sludge for filling up low marshland is no longer accepted by the public.
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