Results 11 to 20 of about 1,916 (210)
Effect of Microwave-coupled Fe0/H2O2 on Excess Sludge Dewaterability
The effects of initial pH, microwave power, reaction time, H2O2 dosage, and Fe0 dosage in microwave-coupled Fe0/H2O2 (MW-Fe0/H2O2) Fenton-like process on sludge dewaterability were systematically investigated by the specific resistance to filtration (SRF)
Yangyang LI +4 more
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Oxidative treatment of waste activated sludge by different activated persulfate systems for enhancing sludge dewaterability [PDF]
The enhancement in dewaterability of waste activated sludge (WAS) by oxidative treatment using thermally- and alkali-activated persulfates (i.e., peroxymonosulfate (PMS) and peroxydisulfate (PDS)) was studied with two indices representing dewaterability ...
Ki-Myeong Lee, Min Sik Kim, Changha Lee
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Impact of Sludge Floc Size and Water Composition on Dewaterability [PDF]
AbstractIn order to observe the impact of different water compositions on sludge dewaterability, assessments of floc sizes using a particle size analyzer and of sludge dewaterability based on the capillary suction time (CST) test were carried out. Synthetic raw water had small floc sizes, and synthetic domestic wastewater had both larger median floc ...
Fitria, D +3 more
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The potential benefits and mechanisms of potassium ferrate pretreatment and calcium chloride addition on sludge dewaterability were investigated in this study. The capillary suction time (CST) was used to evaluate sludge dewaterability. Results indicated
Yali Liu +4 more
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The sludge dewaterability in membrane bioreactors [PDF]
The influence of the sludge origin on the dewaterability features has been investigated by comparing the experimental results of six membrane bioreactor pilot plants with different configurations. The capillary suction time (CST) and the specific resistance to filtration (SRF), identified as representative of sludge dewaterability features, were ...
CAPODICI, Marco, MANNINA, Giorgio
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In the present study, the effect of hydrogen peroxide oxidation/alkaline hydrolysis was investigated on waste activated sludge (WAS), to enhance its disintegration and dewaterability.
Heng Gan Chin +2 more
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A novel technique to enhance sludge dewaterability with zero-valent iron-activated persulfate (ZVI/PDS) and hydrothermal treatment (HT) under mild temperature is proposed in this study.
Panpan Li +6 more
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Influences of extracellular polymeric substances on the dewaterability of sewage sludge during bioleaching. [PDF]
Extracellular polymeric substances (EPS) play important roles in regulating the dewaterability of sludge. This study sought to elucidate the influence of EPS on the dewaterability of sludge during bioleaching process.
Jun Zhou +3 more
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Limits of sludge dewaterability
Water in sludge appears to be of four kinds; free water which freezes at normal freezing temperatures; interstitial water, which freezes at lower temperature due to high dissolved solids concentrations; vicinal water which is associated with solid surfaces and freezes only at very low temperatures; and water of hydration, which does not enter the ice ...
Cheng-Chao Hsu, P. Aarne Vesilind
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Wastewater treatment plants are increasingly interested in adopting inorganic coagulants and organic flocculants in their sludge treatment process since sludge disposal costs more than half of the overall operational costs.
Jannatul Rumky +2 more
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