Analysis of rheological properties of modified sewage sludge

2018 ◽  
Vol 134 ◽  
pp. 143-147
Author(s):  
Pawel Wolski
Keyword(s):  
Sewage Sludge ◽  
Rheological Properties

Influence of sewage sludge on the rheological properties of petroleum coke-water slurry

2012 ◽  
Vol 8 (3) ◽  
pp. 453-460 ◽  
Author(s):  
Xiuyuan Ma ◽  
Yufeng Duan ◽  
Meng Liu ◽  
Huafeng Li
Keyword(s):  
Sewage Sludge ◽  
Rheological Properties ◽  
Petroleum Coke ◽  
Water Slurry

scholarly journals Rheological properties of sewage sludge ash ceramic masses

2021 ◽  
Vol 2124 (1) ◽  
pp. 012002
Author(s):  
S A Shakhov ◽  
N Yu Nikolaev
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Sewage Sludge ◽  
Rheological Properties ◽  
Drinking Water Treatment ◽  
Building Ceramic ◽  
Water Treatment Sludge ◽  
Sewage Sludge Ash ◽  
Highly Dispersed ◽  
Sludge Ash

Abstract Industrial wastes are widely involved in the building ceramic production. Sewage sludge ashes are promising secondary sources for building ceramics production. However, sewage sludge ash application for building ceramic materials production is limited by unsatisfactory molding properties. According to modern concepts, coagulation structure formation processes can be controlled by adjusting ceramic mass compositions by highly dispersed modifying additives. In this study, the drinking water treatment sludge filtrate generated in pumping and filtering stations was used as a highly dispersed additive. The purpose of study was to assess the drinking water treatment sludge filtrate effect on rheological properties of ash-clay molding mixtures. Using the photo sedimentation analysis, X-ray phase analysis, calorimeter method and parallel-shifting plate plastometry the drinking water treatment sludge filtrate additive effect on rheological properties of ash-clay mixtures was established. It was found that ash-clay mixture modification with the drinking water treatment sludge filtrate promotes a slow elastic deformations percentage increase from 3-17% to 7-34%. Apparently, this is due to the drinking water treatment sludge filtrate highly dispersed particles adsorption on coarse ash and clay particles that promotes the growth of their hydrophilic properties. Ash-clay mixtures molding properties improvement makes it possible to increase the ceramic blanks density.

Influence of Sewage Sludge on the Slurrying Properties and Co-Gasification Kinetics of Coal-Sludge Slurries

2013 ◽  
Vol 634-638 ◽  
pp. 239-244
Author(s):  
Bang Yang Zhu ◽  
Han Xu Li ◽  
Jie Yao ◽  
Qiao Liu ◽  
Zi Li Zhang ◽  
...  
Keyword(s):  
Activation Energy ◽  
Fourier Transform ◽  
Sewage Sludge ◽  
Rheological Properties ◽  
Apparent Viscosity ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Coal Sludge ◽  
Kinetics Of

The feature of coal-sludge slurries(CSSs) were studied by mixing Shenhua coal and sewage sludge collected from Huainan sewage treatment plant. The results showed that, the rheological properties of CSSs prepared with the adding dosage from 0 to 15% were the shearing and diluting feature. With the adding dosages of the sludge increase, the apparent viscosity values increased and the maximum solid concentrations of CSSs decreased. Also, the gasification kinetics were studied by Thermogravimetry-Fourier Transform Infrared(TG-FTIR). The gasification starting temperatures and activation energy decreased with the adding dosages of the sludge increase, it indicated that the process was accelerated by sewage sludge.

Relationship between electrical and rheological properties of sewage sludge – Impact of temperature

2015 ◽  
Vol 73 ◽  
pp. 1-8 ◽  
Author(s):  
C. Ségalen ◽  
E. Dieudé-Fauvel ◽  
J. Clément ◽  
J.C. Baudez
Keyword(s):  
Sewage Sludge ◽  
Rheological Properties

Electrical and rheological properties of sewage sludge – Impact of the solid content

2015 ◽  
Vol 82 ◽  
pp. 25-36 ◽  
Author(s):  
C. Ségalen ◽  
E. Dieudé-Fauvel ◽  
J.C. Baudez
Keyword(s):  
Sewage Sludge ◽  
Rheological Properties ◽  
Solid Content

scholarly journals Substrate and operational conditions as regulators of fluid properties in full-scale continuous stirred-tank biogas reactors – implications for rheology-driven power requirements

2018 ◽  
Vol 78 (4) ◽  
pp. 814-826 ◽  
Author(s):  
Annika Björn ◽  
Luka Šafarič ◽  
Anna Karlsson ◽  
Åsa Danielsson ◽  
Jörgen Ejlertsson ◽  
...  
Keyword(s):  
Sewage Sludge ◽  
Rheological Properties ◽  
Full Scale ◽  
Stirred Tank ◽  
Organic Loading Rate ◽  
Operational Conditions ◽  
Fluid Properties ◽  
Biogas Reactors ◽  
Continuous Stirred Tank ◽  
Fluid Characteristics

Abstract Understanding fluid rheology is important for optimal design and operation of continuous stirred-tank biogas reactors (CSTBRs) and is the basis for power requirement estimates. Conflicting results have been reported regarding the applicability of total solid (TS) and/or total volatile solid (TVS) contents of CSTBR fluids as proxies for rheological properties. Thus, the present study investigates relationships between rheological properties of 12 full-scale CSTBR fluids, their substrate profiles, and major operational conditions, including pH, TS and TVS contents, organic loading rate, hydraulic retention time, and temperature. Rheology-driven power requirements based on various fluid characteristics were evaluated for a general biogas reactor setup. The results revealed a significant correlation only between the rheological fluid properties and TS or TVS contents for sewage sludge digesters and thermophilic co-digesters (CD), but not for mesophilic CD. Furthermore, the calculated power requirements for pumping and mixing, based on the various fluid characteristics of the studied CSTBRs, varied broadly irrespective of TS and TVS contents. Thus, this study shows that the TS and/or TVS contents of digester fluid are not reliable estimators of the rheological properties in CSTBRs digesting substrates other than sewage sludge.

scholarly journals Rheological properties of sewage sludge during enhanced anaerobic digestion with microwave-H2O2 pretreatment

2016 ◽  
Vol 98 ◽  
pp. 98-108 ◽  
Author(s):  
Jibao Liu ◽  
Dawei Yu ◽  
Jian Zhang ◽  
Min Yang ◽  
Yawei Wang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Rheological Properties ◽  
H2o2 Pretreatment
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