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Showing 1 to 12 of 12 for “"Filter press"”.
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Municipal sludge dewatering using a belt filter press
… the optimum polymer conditioning for a belt filter press The optimum polymer dosages for all three zones of a belt filter press were compared with each other to determine the best overall conditioning. The requirements of all three zones of a belt filter press were the same. However, the …
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Polymer dose prediction for sludge dewatering with a belt filter press
… requirements for sludge dewatering with a belt filter press. This involved correlating full-scale field studies to small scale laboratory testing. Bench testing involved the use of a high-speed mixer and two sludge dewatering response tests: the capillary suction time test and the time-to filter …
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Laboratory evaluation of conditioning requirements for sludge dewatering using belt filter press
… conditioning requirements for full-scale belt filter presses, and to determine the additional polymer demand exerted by applied pressure during the expression stage of a dewatering process. Bench-scale experiments performed with anaerobically digested, alum, and secondary sludges used a …
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Effect of conditioning on the performance of a plate and frame filter press
… introduced into a pilot scale plate and frame filter press. Filtrate volume per unit time and final cake solids were used to characterize the press performance. Results indicated that filter press, performance can be optimized by selecting mixing. speeds during conditioning that simulate the …
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The effect of polymer dose and mixing intensity on sludge dewatering with a plate and frame filter press
… digested sludge and a plate and frame filter press to determine filter press performance over a range of polymer doses and under a variety of sludge and polymer mixing conditions. In addition, bench-scale polymer dosing and mixing experiments were conducted with the same sludge samples …
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Predicting dewatering equipment performance from laboratory tests
… dewatering characteristics of a bench-scale belt filter press and a full-scale screw press, and to develop a suitable bench-scale test to simulate dewatering in a full-scale screw press. Tests were conducted to determine the effect of pressure and shear on dewatering of anaerobically digested, …
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Life cycle assessment of dewatering routes for algae-derived biodiesel processes
… a disc stack centrifuge, followed by the chamber filter press, and a heat integrated dryer. This resulted in 875 kg emissions /t BD, a 91% reduction from the base case. A model indicated the optimal case of the disc stack centrifuge, spiral plate centrifuge, heat assisted rotary filter press, and …
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The effect of certain sludge floc properties on the dewatering characteristics of biological and chemical waste sludges
… sludge viscosity and shear strength, and floc compressibility. The experimental investigation involved the collection of both water and wastewater sludge samples from full-scale treatment plants in the Commonwealth of Virginia. These samples were analyzed for each of the parameters previously …
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Investigating the Role of Various Environment and Process Conditions in Wastewater Sludge Odor Generation
… (VSCs) during storage. In this study, a belt filter press gave a higher production of sulfur and TMA odors compared to a vacuum filter for the same sludge, which is attributed to the shear imparted to sludge during the dewatering process. Preliming studies suggested incomplete mixing of lime …
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Development of an ambient temperature alkaline electrolyser for integrating with the electrical grid and renewable energy system
… be configured in either monopolar or bi-polar filter press arrangements. The flow-cell alkaline electrolyser is manifolded in order to capture the hydrogen and oxygen product gases that can be subsequently utilised in an alkaline fuel cell to essentially generate back electricity. It is …
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Effect of Digestion Processes on Dewatering and Bound Water Content of Sludge
… combines the above-mentioned processes, by pressure filtration of sludge followed by application of vacuum and heat. However, when cationic polymer conditioned sludge is dewatered in the J-Vap, the polymer is suspected to interact with the filter media at high temperatures, resulting in the …
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Recirculated Process Water in the Flotation of Sulfides
… recycling of recovered tailings water, using a filter press to separate the tailings solids from batch flotation tests of a UG2 ore. The study investigated the impact of the addition of recycled water to the sequential milling and batch flotation tests of a UG2 ore on the froth stability of the …