Results 31 to 40 of about 1,916 (210)

Research on Dewatering Ability of Municipal Sludge under the Treatment of Coupled Acid and Microwave

open access: yesGeofluids, Volume 2021, Issue 1, 2021., 2021
Municipal sludge is a by‐product of urban sewage treatment; it has high water content and contains many hydrophilic extracellular polymeric substances (EPS). It is difficult to achieve deep dewatering of sludge. Therefore, it is necessary to find an efficient method to treat sludge.
Xudong Zhang   +8 more
wiley   +1 more source

High-Rate Anaerobic Digestion of Waste Activated Sludge by Integration of Electro-Fenton Process

open access: yesMolecules, 2020
Anaerobic digestion (AD), being the most effective treatment method of waste activated sludge (WAS), allows for safe disposal. The present study deals with the electro-Fenton (EF) pretreatment for enhancing the WAS biogas potential with low-cost iron ...
Emna Feki   +4 more
doaj   +1 more source

Optimization of the process of decreasing the filtration resistance of sewage sludge by thermal pretreatment: a case study for the Lviv WWTP

open access: yesWater Science and Technology, 2023
The article presents the results of an experimental study of the effect of high-temperature thermal pretreatment on the specific resistance to filtration (SRF) of the sewage sludge (SS) from the Lviv wastewater treatment plant (WWTP), which is a ...
Orest Verbovskyi   +3 more
doaj   +1 more source

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

A review on the dewaterability of bio-sludge and ultrasound pretreatment

open access: yesUltrasonics Sonochemistry, 2004
Bio-sludge, which contains large quantities of water, biomass and extracellular polymeric substances (EPS), is difficult to be dewatered as a "super-compactable" sludge [Water Res. 35 (5) (2001) 1358]. Reported water content in bio-sludge was commonly about 80-90% wt after dewatering process.
Xuan, Yin   +3 more
openaire   +2 more sources

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

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

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

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