Results 31 to 40 of about 412 (178)

Influence of extracellular polymeric substances on sludge dewaterability and bound water content at various pH values

open access: yes工程科学学报, 2015
The changes of sludge dewaterability and bound water content at various pH values were investigated in this study. The protein and polysaccharide contents in each layer of extracellular polymeric substances(S-EPS、LB-EPS and TB-EPS) and the organic acid ...
XING Yi   +7 more
doaj   +1 more source

Improvement of sludge dewaterability and disintegration efficiency using electrolytic zero-valent iron activated peroxymonosulfate

open access: yesWater Science and Technology, 2021
Electrolysis zero-valent iron activated peroxymonosulfate (EZVI-PMS) was applied to enhance sludge dewaterability and disintegration performance. Sludge dewaterability was characterized by capillary suction time (CST), specific resistance to filtration ...
Shaodong Guo   +3 more
doaj   +1 more source

Sewage Sludge Valorization via Hydrothermal Carbonization: Optimizing Dewaterability and Phosphorus Release

open access: yesEnergies, 2020
As the use of sewage sludge as a fertilizer in agriculture is increasingly restricted in the European Union, other ways to utilize this waste stream need to be developed.
Taina Lühmann, Benjamin Wirth
doaj   +1 more source

Residues from the dairy industry as co‐substrate for the flexibilization of digester operation

open access: yesWater Environment Research, Volume 92, Issue 4, Page 534-540, April 2020., 2020
Demand‐oriented gas production using co‐substrates can contribute to the increase in self‐sufficient electricity supply of sewage treatment plants. However, a discontinuous operation of the digester is avoided in order to maintain process stability.
Christian Hubert   +2 more
wiley   +1 more source

Effect of Substrate Characteristics and Process Fluid Percolation on Dry Anaerobic Digestion Processes

open access: yesChemical Engineering &Technology, Volume 43, Issue 1, Page 59-67, January 2020., 2020
Dry batch anaerobic digestion trials in pilot scale and oedometer tests under compression were performed to investigate the influence of material structure and percolation on the dry batch digestion process. Material compaction during the digestion process negatively affects substrate permeability.
Harald Wedwitschka   +6 more
wiley   +1 more source

Modern techniques for sludge dewaterability improvement

open access: yesDrying Technology, 2022
Since sludge mitigation requires new strategies for enhanced dewaterablity, several scientific and technological advancements in conditioning, dewatering and drying technologies for a variety of sludges are being developed continuously. Grappling with the problem of ever-increasing sludge volume, it is important to critically assess the new concepts to
Tolga Tunçal, Arun S. Mujumdar
openaire   +3 more sources

Effects of Four Kinds of Oxide Nanoparticles on Proteins in Extracellular Polymeric Substances of Sludge

open access: yesBioMed Research International, Volume 2020, Issue 1, 2020., 2020
Proteins are the most important component in sludge extracellular polymeric substances (EPS) and play a crucial role in the formation of sludge flocs, adsorption performance of sludge, and flocculation ability of sludge. This research is aimed at exploring the changes in proteins in EPS extracted from concentrated sludge after various nanoparticle (NP)
Weiyun Wang   +5 more
wiley   +1 more source

Ultrasonic and Thermal Pretreatments on Anaerobic Digestion of Petrochemical Sludge: Dewaterability and Degradation of PAHs.

open access: yesPLoS ONE, 2015
Effects of different pretreatment methods on sludge dewaterability and polycyclic aromatic hydrocarbons (PAHs) degradation during petrochemical sludge anaerobic digestion were studied. Results showed that the total biogas production volume in the thermal
Jun Zhou   +6 more
doaj   +1 more source

Shear‐Dependent Yield Stress of Iron Ore Fine Tailings in Two‐Step Flocculation Process

open access: yesAdvances in Materials Science and Engineering, Volume 2020, Issue 1, 2020., 2020
Both shear and flocculation have a significant influence on the rheological behavior of tailings, especially the yield stress. In the two‐step flocculation process, the above two kinds of actions exist at the same time, and they influence each other.
Ying Yang   +4 more
wiley   +1 more source

The effect of microwave hydrothermal treatment on the combustion behavior of sewage sludge

open access: yesFrontiers in Environmental Science, 2022
In this study, the thermal behavior of microwave hydrothermal char of sewage sludge (MTC) was compared with dried sludge (DS) and char produced by electric hydrothermal treatment (ETC).
Zechen Jin   +8 more
doaj   +1 more source

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