Results 1 to 10 of about 16,096 (146)

Application of polyelectrolytes for improving the dewatering performance of drinking water treatment sludge using geotextiles

open access: yesRevista Ambiente & Água, 2021
The sludge generated at drinking water treatment plants (WTPs) is a high-moisture content residue, and therefore difficult to handle, transport, dispose of or recover. During the last decades, geotextile tubes have been successfully applied to reduce the
Livia Luiza de Souza Avancini   +2 more
doaj   +1 more source

Dewatering as a primary treatment of faecal sludge in individual residential sector (a technologies review) [PDF]

open access: yesE3S Web of Conferences, 2020
Dewatering of faecal sludge (FS) is the most efficient method of pretreatment of bioorganic human waste for minimizing the faecal sludge volume. This process may be considered as one of management tool in service chain of Faecal Sludge Management (FSM ...
Basamykina Alena   +2 more
doaj   +1 more source

Experimental investigation of sludge dewatering for single- and double-drainage conditions with a vacuum negative pressure load at the bottom.

open access: yesPLoS ONE, 2021
The moisture content of municipal sludge is relatively high, which increases the cost of sludge transportation and treatment. To reduce the volume of the sludge, sludge dewatering is needed.
Jiesheng Zhang   +5 more
doaj   +1 more source

Artificial Neural Networks in Modeling of Dewaterability of Sewage Sludge

open access: yesEnergies, 2021
Mechanical dewatering is a key process in the management of sewage sludge. However, the drainage efficiency depends on a number of factors, from the type and dose of the conditioning agent to the parameters of the drainage device.
Mariusz Kowalczyk, Tomasz Kamizela
doaj   +1 more source

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

Factors Affecting the Mechanical Deep Dewatering of Sludge from Wastewater Treatment

open access: yesBioResources, 2023
Effects of pressure, dewatering time, and sludge cake thickness on the dewatering of wastewater sludge by the hydraulic dehydrator under the condition of adding CaO and FeSO4 were analyzed using the response surface method (RSM).
Weihua Qin   +3 more
doaj   +2 more sources

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

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

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