Results 141 to 150 of about 951 (173)
Some of the next articles are maybe not open access.
Air Flow and Compression Work in Vacuum Dewatering of Paper
Drying Technology, 2013Dewatering on the paper machine takes place by gravity, suction, pressing, and evaporation. Optimizing the operation of the vacuum system is important, since the electricity consumption of the vacuum pumps might be one-fifth of the total electricity consumption of the paper machine.
openaire +1 more source
Precoat Vacuum Filtration and Natural‐Freeze Dewatering of Alum Sludge
Journal AWWA, 1972Some treatment plants can lagoon their sludge; others may dump it into nearby water “repositories.” The Albany, N. Y., facility hasn't the land area for the former and has been enjoined from the latter. Solution to its problem boiled down to two possibilities: dewater by rotary‐vacuum precoat filtration or natural freezing.
Patrick F. Mahoney, Willard J. Duensing
openaire +1 more source
Test Study on Dewatering Effect of Sewage Sludge by Vacuum Method
Advanced Materials Research, 2012The aeration-vacuum dewatering method is a new kind of solid-liquid separate technique. The filter clogging problem in the routine vacuum dewatering procedure of sludge can be solved by the method. This method is used to dewater the sewage sludge in this paper.
Yu Feng Gao +3 more
openaire +1 more source
Strength properties of vacuum-dewatered concrete
Experimental program is set up to study the effect of the vacuum dewatering process that accerates the rate of strength gain of concrete mixes, having the water-cement ratio and cement content as variables. The effect of the process on the mechanical properties of vacuum-dewatered concrete is also determined in comparison with those of the ...openaire +1 more source
Cement and Concrete Research, 1994
Abstract In this paper, the application of a vacuum microwave composite dewatering technique in concrete engineering is studied. The final w/c ratio of concrete is decreased to about 0.38. The plastic contraction of concrete occuring due to the decrease of the free water and the hydration rate of cement is increased during the microwave curing ...
Li Dongxu, Wu Xuequan
openaire +1 more source
Abstract In this paper, the application of a vacuum microwave composite dewatering technique in concrete engineering is studied. The final w/c ratio of concrete is decreased to about 0.38. The plastic contraction of concrete occuring due to the decrease of the free water and the hydration rate of cement is increased during the microwave curing ...
Li Dongxu, Wu Xuequan
openaire +1 more source
Rheological model for sludge dewatering with vacuum-assisted horizontal drains
Canadian Geotechnical JournalPrefabricated horizontal drains (PHDs) are increasingly popular for vacuum dewatering of sludge with high water content. However, traditional consolidation models based on the principle of effective stress and Darcy’s law fail to capture solid–fluid interactions in the early dewatering stages given the absence of a soil skeleton.
Hao Zhang +5 more
openaire +1 more source
Dewatering of unaggregated cakes in vacuum filters
Chemical and Petroleum Engineering, 1978T. A. Malinovskaya, A. V. Fedorov
openaire +1 more source
Environmental Science and Pollution Research
Addressing the substantial yearly production of waste dredged slurry with high water content, it is imperative to adopt effective technical treatments for sustainable development. This paper establishes that the curing-flocculation-vacuum filtration (C-F-VF) method efficiently converts high-water content dredged slurry into back-fill soil, achieving ...
Silin, Wu +4 more
openaire +2 more sources
Addressing the substantial yearly production of waste dredged slurry with high water content, it is imperative to adopt effective technical treatments for sustainable development. This paper establishes that the curing-flocculation-vacuum filtration (C-F-VF) method efficiently converts high-water content dredged slurry into back-fill soil, achieving ...
Silin, Wu +4 more
openaire +2 more sources
Dewatering, radial drainage and vacuum consolidation
2020Buddhima Indraratna +2 more
openaire +1 more source
Numerical model of water removal and air penetration during vacuum dewatering
Drying Technology, 2021Lars Nilsson +2 more
exaly