A Comparative Study of Sludge Dewatering Units for Sludge Management

2004 ◽  
Vol 39 (2) ◽  
pp. 473-482 ◽  
Author(s):  
Saleh Al-Muzaini
Keyword(s):  
Comparative Study ◽  
Sludge Dewatering ◽  
Sludge Management

Dewatering of Sewage Sludge Using Thermal Compression

2012 ◽  
Vol 193-194 ◽  
pp. 89-93 ◽  
Author(s):  
Li Fan ◽  
Ming Yuan Zhou ◽  
Xiu Li Li
Keyword(s):  
Sewage Sludge ◽  
Moisture Content ◽  
Bound Water ◽  
Solid Content ◽  
Mechanical Compression ◽  
Sludge Dewatering ◽  
Sludge Management ◽  
Thermal Compression ◽  
Traditional Process

Mechanical compression is a traditional process for the dewatering of sewage sludge. However, the moisture content of the cake is still high, unfavorable for the sludge management. In this paper, the use of thermal compression to improve the sludge dewatering is investigated. The dewatering efficiency is affected by the applied temperature, pressure and the sludge mass. The bound water of the sludge is further reduced by thermal compression, improving the dewatering performance. The solid content of the cake obtained after 10 min mechanical compression and 60 min thermal compression at 120 oC and 4 MPa is 85.2%.

A Comparative Study of Full-Scale Sludge Dewatering Equipment

1993 ◽  
Vol 28 (1) ◽  
pp. 37-45 ◽  
Author(s):  
Ina Andreasen ◽  
Bente Nielsen
Keyword(s):  
Comparative Study ◽  
Wastewater Treatment Plants ◽  
Membrane Filter ◽  
Filter Press ◽  
Full Scale ◽  
Sludge Dewatering ◽  
Dewatered Sludge ◽  
Solids Content ◽  
Very High ◽  
P Removal

A comparative study of 4 different types of full-scale sludge dewatering units was performed in 1990 by I. Krüger AS in co-operation with the equipment suppliers. The purpose of the study was to examine the capability of the dewatering equipment on the “new” sludge types from wastewater treatment plants with N and P removal. The achieved results have formed the basis of a financial evaluation comprising construction and operating costs. The objective of the evaluation is to compare the total costs involved in sludge dewatering and disposal. The relatively cheap types of dewatering units (belt filter press, solid bowl centrifuge) produce dewatered sludge with a lower dry solids content than the more expensive equipment (press centrifuge, membrane filter press). The latter types should consequently primarily be applied where the dewatered sludge has to meet special requirements and in situations in which disposal costs are very high.

Author response for "Laminar distribution of cortical projection neurons to the pulvinar: A comparative study in cats and mice"

2020 ◽  
Author(s):  
Bruno Oliveira Ferreira de Souza ◽  
Éve‐Marie Frigon ◽  
Robert Tremblay‐Laliberté ◽  
Christian Casanova ◽  
Denis Boire
Keyword(s):  
Comparative Study ◽  
Author Response ◽  
Projection Neurons ◽  
Cortical Projection ◽  
Laminar Distribution

Structural and functional properties of Escherichia coli-derived nucleoplasmin A comparative study of recombinant and natural proteins

2001 ◽  
Vol 268 (6) ◽  
pp. 1739-1748
Author(s):  
Aitor Hierro ◽  
Jesus M. Arizmendi ◽  
Javier De Las Rivas ◽  
M. Angeles Urbaneja ◽  
Adelina Prado ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Comparative Study ◽  
Functional Properties ◽  
Structural And Functional Properties
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