Results 121 to 130 of about 1,666 (179)
Electrochemical Nutrient Recovery for the Food-Energy-Water Nexus at Municipal Wastewater Facilities: Multivariate Analyses of Seasonal Sampling and Reactor Performance. [PDF]
ACS ES T EngHeydarian S +6 more
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A review on sludge dewatering indices [PDF]
Water Science and Technology, 2016 Dewatering of sludge from sewage treatment plants is proving to be a significant challenge due to the large amounts of residual sludges generated annually. In recent years, research and development have focused on improving the dewatering process in order to reduce subsequent costs of sludge management and transport.
Hai Nguyen Tran +2 more
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Sludge dewatering with cyclodextrins
Water Research, 2007Cyclodextrins (CDs) increase the cake solids and drainage rate of belt-pressed biological or primary sludge when added to the sludge slurry along with conventional conditioning chemicals. These benefits are obtained at very low CD dosage. A 2.8 percentage point increase in cake solids was obtained in a full-scale trial with mixed primary and biological
Bradley H, Hartong +4 more
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Quantification of wastewater sludge dewatering
Water Research, 2015Quantification and comparison of the dewatering characteristics of fifteen sewage sludges from a range of digestion scenarios are described. The method proposed uses laboratory dewatering measurements and integrity analysis of the extracted material properties.
Samuel J. Skinner +9 more
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Osmotic effects in sludge dewatering
Advances in Environmental Research, 2003A model of filtration dewatering is presented. The model is based on the d’Arcy flow equation in which the resistance to filtration is described by the Corzeny–Carman equation and the driving force is the difference between the external pressure and the osmotic pressure of the filter cake. It has been found that this model reproduces all known features
Keiding, Kristian, Rasmussen, Michael R.
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Water Research, 1972
A DECISION on the mechanical dewatering of raw and digested sludges calls for an initial appraisal of the outline economics related to the budgetary costs of capital construction and estimate of operating costs. The latter at times can be the subject of material revision when the plant is installed and operated, and demands a firm performance ...
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A DECISION on the mechanical dewatering of raw and digested sludges calls for an initial appraisal of the outline economics related to the budgetary costs of capital construction and estimate of operating costs. The latter at times can be the subject of material revision when the plant is installed and operated, and demands a firm performance ...
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Innovation in Dewatering Sludges
Water Intelligence Online, 2015Dewatering practices reduce the water content of sludges in order to minimise the volume to be handled and improve handling properties. Studies have shown that the ability of dewatering processes to reduce the water content is dependent on the specific dewatering process and the nature of the sludge.
S. A. Miller +3 more
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Drying Technology, 2002
ABSTRACT The production of wastewater treatment sludge, the basic characteristics of the sludge and the state of the water in the sludge are described in this paper. The methods for the determination of bound water content are discussed. The literature (including patents) on sludge dewatering and drying is reviewed, including vacuum filters, belt ...
Chen, Guohua, Yue, Po Lock, Mujumdar, AS
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ABSTRACT The production of wastewater treatment sludge, the basic characteristics of the sludge and the state of the water in the sludge are described in this paper. The methods for the determination of bound water content are discussed. The literature (including patents) on sludge dewatering and drying is reviewed, including vacuum filters, belt ...
Chen, Guohua, Yue, Po Lock, Mujumdar, AS
openaire +2 more sources
Separation technologies for sludge dewatering
Journal of Hazardous Materials, 2007Particles in sludge feeds interact strongly one with another to prevent settling and offer a significant resistance to filtration and compression. This leads to the need for dewatering forces to be compressive ones applied directly to the networked solid phase; sometimes shear forces can be an assist dewatering.
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