Results 11 to 20 of about 1,666 (179)

Impact of Conditioning Substances and Filtration Pressure on Dewatering Efficiency of Sewage Sludge

open access: yesEnergies, 2021
Sludge dewatering is a key element in sludge’s processing and management. Solid-phase separation, sludge volume reduction and the separation of a high-quality supernatant are the main tasks of the dewatering devices.
Tomasz Kamizela, Mariusz Kowalczyk
doaj   +1 more source

Effects of acid-heat combined treatment on sludge dewatering performance at low temperature [PDF]

open access: yesE3S Web of Conferences, 2019
The effects of different initial pH value, temperature and heating time on sludge dewatering performance were studied by treating sludge with acid-heat combination at low temperature and taking dewatering rate (amount of filtrate per unit time) and ...
Qian Jie, Tang Yuchao, Zhang Qianqian
doaj   +1 more source

Test and Analysis of Sludge Dewatering with a Vacuum Negative Pressure Load at the Bottom of Full Section

open access: yesAdvances in Civil Engineering, 2020
At present, the sludge production has increased sharply, and sludge treatment remains a serious problem. Rapid sludge dewatering is the key problem of sludge treatment, and the main approach for reducing the cost of the sludge treatment is to reduce the ...
Yongzheng Qi   +8 more
doaj   +1 more source

Energy demand in sludge dewatering [PDF]

open access: yesWater Research, 2005
This work investigates the energy required to dewater a suspension, i.e., activated sludge dewatered by centrifugation or consolidation. Total energy input to the suspension from the dewatering device, bond strength between adjacent water and solid surface, and intra-cake friction loss were evaluated for original and flocculated sludges. In centrifugal
Chu, C.P., Lee, D.J., Chang, C.Y.
openaire   +2 more sources

Bioflocculants as Alternative to Synthetic Polymers to Enhance Wastewater Sludge Dewaterability: A Review

open access: yesEnergies, 2023
The dewatering process reduces the water quantity in sludge, allowing the decrease in its volume, which facilitates its storage, transport, stabilization, and improves the post-treatment efficiency.
Wissem Mnif, Faouzi Ben Rebah
doaj   +1 more source

Conditioning of Sewage Sludge with Physical, Chemical and Dual Methods to Improve Sewage Sludge Dewatering

open access: yesEnergies, 2021
The paper presents the impact of different methods of sewage sludge conditioning on the improvement of sludge dewatering during pressure filtration processes.
Beata Bień, Jurand D. Bień
doaj   +1 more source

The enhanced dewaterability of sludge by a starch-based flocculant combined with attapulgite

open access: yesScientific Reports, 2023
Coagulation/flocculation is one of the most widely used and cost-effective pretreatment methods for improving the dewaterability of sludge. In this study, a cationic modified starch-based flocculant (St-CTA) in conjunction with a popular clay ...
Shaohang Shen   +4 more
doaj   +1 more source

Dewatering of sludge obtained by neutralisation from sulfuric-acid waste solutions [PDF]

open access: yesMining and Metallurgy Engineering Bor, 2014
The aim of this paper was to investigate the possibility of removing the liquid phase from the sludge using the mechanical dewatering methods. The sludge was obtained by neutralization of sulfuric acid waste solution from the process of copper ...
Marković Radmila   +3 more
doaj   +1 more source

Assessment of two sludge stabilization methods in a wastewater treatment plant in Sotaquirá, Colombia

open access: yesUniversitas Scientiarum, 2020
Wastewater sludge is a by-product of wastewater treatment; it is often employed in agricultural processes following appropriate microbiological stabilization.
José Castellanos-Rozo, Jaqueline A. Galvis-López, Nuri A. Merchán-Castellanos, Elsa H. Manjarres-Hernández, Alex L. Rojas
doaj   +1 more source

Electro-dewatering (EDW) as Hybrid Dewatering Technology: Influence of Operating Parameters and Energy Efficiency [PDF]

open access: yesE3S Web of Conferences, 2023
Electro-dewatering (EDW) is a hybrid technology for separating liquids from solids in the wastewater sludge dewatering process. EDW has excellent prospects because it is able to remove water from sludge with high efficiency and low energy consumption ...
Junaidi Junaidi   +2 more
doaj   +1 more source

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