Results 11 to 20 of about 10,575 (222)

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

Progression of Vacuum Level in Successive Vacuum Suction Boxes in a Paper Machine – Impact on Dewatering Efficiency and Energy Demand – A Laboratory Study

open access: yesBioResources, 2023
Producing tissue paper is an energy-demanding process; a significant amount of energy is expended when removing water by vacuum, mechanical pressing, and thermal drying. Because the water is most energy-demanding to remove in drying, making the preceding
Björn Sjöstrand
doaj   +2 more sources

Dewatering of Sewage Sludge with Vacuum Assisted Sludge Dewatering Beds

open access: yesWater Science and Technology, 1992
The “Rapid Sludge Dewatering System (RSDS)”, in which the sludge is dewatered by way of vacuum supported sludge drying beds, was tested for performance, efficiency and applicability. Generally, the RSD-System can be regarded as an alternative to other sludge dewatering systems, especially for small purification plants, for agricultural use and ...
Ch. Salzer, R. Haberl
openaire   +1 more source

A new approach to analyzing the type of moisture inside the filter cake of hematite concentrate [PDF]

open access: yesInternational Journal of Mining and Geo-Engineering, 2023
Filters are widely used for dewatering in the mining industry. In general, different parameters affect vacuum filtration, such as solid percentage, vacuum level, particle size distribution, filter cloth, and chemical additives.
Mohsen Izadi-Yazdan Abadi   +3 more
doaj   +1 more source

Method for Studying Water Removal and Air Penetration during Through Air Drying of Tissue in Laboratory Scale

open access: yesBioResources, 2023
Energy use, together with consumption of raw materials, machine clothing, and wet end chemicals, are some of the most critical aspects in successful tissue making today. This work was aimed at developing a laboratory-scale method of estimating dewatering
Björn Sjöstrand   +2 more
doaj   +2 more sources

A field experimental study of sludge vacuum preloading based on the temperature increasing heating technology

open access: yesShuiwen dizhi gongcheng dizhi, 2022
Temperature increasing heating combined with vacuum preloading is a new sludge dewatering and consolidation technology, and relevant field experimental research has not been carried out.
Jin CHENG   +7 more
doaj   +1 more source

Stabilization of Landslides Sliding Layer Using Electrokinetic Phenomena and Vacuum Treatment

open access: yesGeosciences, 2020
The article presents the efficiency of application of cohesive soil dewatering for increasing its resistance to shearing, which influences the mass stability of flysch rock.
Janusz Ukleja
doaj   +1 more source

Dewatering and Structural Analysis of Foam-Formed, Lightweight Fibrous Materials

open access: yesBioResources, 2022
This work studied the effect of the dewatering conditions on the behavior of fiber foams during dewatering and on the final structure of the formed, thick, lightweight lignocellulosic materials. The vacuum level, fiber type, consistency, and basis weight
Janne Tapani Keränen   +3 more
doaj   +2 more sources

The Sludge Dewaterability in Advanced Wastewater Treatment: A Survey of Four Different Membrane BioReactor Pilot Plants [PDF]

open access: yes, 2017
The wasted activated sludge dewaterability represents a major concern for Wastewater Treatment Plants (WWTPs) managers. Indeed, whereas the dewatered sludge could represents a re-usable matrix, the principal drawback related to the wasted sludge ...
A Cosenza   +13 more
core   +1 more source

Consolidation of Sludge Dewatered in Geotextile Tubes under Combined Fill and Vacuum Preloading [PDF]

open access: yesJournal of Geotechnical and Geoenvironmental Engineering, 2022
Recently, permeable geotextile tubes in conjunction with prefabricated horizontal drains (PHDs) have become increasingly popular for dewatering high water content slurries or sludge. However, how to analyze the consolidation process of the sludge in the geotextile tube so as to provide a proper design and prediction becomes a technical challenge.
Hao Zhang   +6 more
openaire   +1 more source

Home - About - Disclaimer - Privacy