نتایج جستجو برای: dewatering

تعداد نتایج: 1064  

Introduction and Purpose: Production of large quantities of sludge is a major problem in wastewater treatment plants, which necessitates adopting proper economical and environmental approaches for its management and treatment. The aim of this study was to investigate the effect of polyacrylamide polymer, modified with aluminum oxide nanoparticles, on dewatering of sludge produced from municipal...

Journal: :Environmental Modelling and Software 2002
L. Li D. A. Barry C. B. Pattiaratchi G. Masselink

Field and laboratory observations have shown that a relatively low beach groundwater table enhances beach accretion. These observations have led to the beach dewatering technique (artificially lowering the beach water table) for combating beach erosion. Here we present a process-based numerical model that simulates the interacting wave motion on the beach, coastal groundwater flow, swash sedime...

Journal: :Archives of Disease in Childhood - Fetal and Neonatal Edition 1999

2005
Michael Zawadzki Talat Mahmood Sujit Banerjee

An innovative and energy efficient sludge dewatering technology has been developed. The technology, impulse drying, involves briefly contacting the sludge under pressure with a heated surface. A unique feature of impulse drying is that the majority of moisture removal occurs as lipid water. A pilotand laboratory-scale demonstration was performed on low ash primary paper mill sludge. The pilot-s...

2016
Mathieu Larronde-Larretche Xue Jin

Article history: Received 9 October 2015 Received in revised form 8 December 2015 Accepted 22 January 2016 Available online xxxx Forward osmosis (FO) is gaining increasing interests for its potential applications in biofuel generation. In this study, bench-scale experiments were conducted to investigate the FO performance for microalgae dewatering which is one of the technical challenges in alg...

Journal: :Doboku Gakkai Ronbunshu 1994

Journal: :Environmental Earth Sciences 2022

The foundation pit of Yamansu hydropower station has an average depth 70 m and been excavated with five-level slopes. Lowering groundwater level is important in excavation. In this study, drainage pumping were conducted dewatering. Pumping tests performed to reverse hydraulic parameters calibrate numerical models. Numerical simulations evaluate the dewatering scheme. first stage, powerhouse tai...

Journal: :journal of mining and environment 2010
e. von sperling c.a.p. grandchamp

the paper presents the case study of the current formation of a brazilian pit lake from an iron ore mining activity. the water used for the filling of the lake comes from rain, ground water and the complementary pumpage from a close river. at its final stage, which will be reached around year 2018, lake aguas claras will have a surface area of 0.67 km2 and the depth of 234 m, which will make it...

Journal: :Archives of Disease in Childhood - Fetal and Neonatal Edition 1999

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