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Showing 1 to 20 of 29 for “"Coagulation & flocculation"”.
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Physical-chemical treatment of landfill leachate : technological performance, spectral characterization and cost estimations
… physical-chemical processes, i.e. ozonation, coagulation-flocculation, granular activated carbon (GAC) adsorption, and ion exchange. The aim was obtaining an optimized and cost effective integrated leachate treatment train. The research also used spectral and chemometric techniques to …
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Landfill leachate treatment by combination of electro - fenton and sequencing batch reactor method
… The experimental involved three major parts were coagulation-flocculation, electro-Fenton and SBR method. This process could be operated independently in a batch mode and optimum conditions for each treatment were identified. In the combined process, leachate was first fed to …
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Evaluation of alternative pretreatment methods for use in direct filtration water treatment
… aid, and a primary coagulant polymer in the coagulation-flocculation-sedimentation portion of a water treatment process and to study the implications of the results with respect to future use in direct filtration. The performance of the coagulant, coagulant aid, and primary coagulant polymer …
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Effectiveness of water treatment methods for removal of haloforms and their precursors
… effective precursor removal could be achieved by coagulation, flocculation, and sedimentation, especially when followed by doses of activated carbon in the range of 30-50 mg/l. It was also observed that the chlorine concentration had more effect on the production of volatile organics than the …
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Development of a novel photocatalytic reactor for the treatment of polycyclic aromatic hydrocarbons.
… research investigated two remediation methods - coagulation-flocculation and photocatalysis - for the remediation of these 18 PAHs in water. In each remediation method investigated, preliminary works were first carried out on 3 PAHs (naphthalene, phenanthrene and fluorene) before then applying …
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Green approach to treat institutional wastewater by using cassava peels starch (CPS) as coagulant aid
… of pollutants from institutional wastewater by coagulation-flocculation processes. Alum as primary coagulant and CPS as coagulant aid was used for removal of pollutants. A series of batch experiments were performed to study the removal mechanism to achieve optimum pH, dosage, and settling time, …
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Characterization and treatment of UV quenching substances and organic nitrogen in landfill leachates and thermal hydrolysis/anaerobic digestion centrate
… treatment had little impact on organic nitrogen. Coagulation-flocculation is an effective treatment for higher molecular weight (MW) fractions whereas a membrane bioreactor would be more suitable for smaller MW fractions.
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Water Treatment: Fundamentals and Practical Implications of Bubble Formation
… as false turbidity in filter effluent. Coagulation processes can cause supersaturation and bubble formation by converting bicarbonate alkalinity to carbon dioxide by acidification. A model was developed to predict the extent of bubble formation during coagulation which proved accurate, …
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Performance Characterization of Coagulation Pretreatment for Two Industrial Effluents
In this work, performances of coagulation and flocculation were tested for two different industrial effluents. Coagulation-Flocculation and activated carbon adsorption were applied for the remediation of oil sands process-affected water (OSPW), generated from oil sands operations in Alberta, …
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Combined anaerobic-aerobic treatment of a simulated textile effluent
… of effluent and showed superior colour removal. Coagulation/flocculation was investigated as a pre-treatment but was found to be unsuitable. It was also aimed to discover whether amines were produced during anaerobic treatment, and if so, were they degraded anaerobically.<br/><br/>Anaerobic …
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Pathogen Removal by Secondary and Advanced Water Reclamation for Water Reuse
… scale include secondary biological treatment, coagulation/flocculation/clarification/granular media filtration, ozonation and ultraviolet disinfection. Literature and drinking water guidelines suggest the pathogen barriers are capable of meeting 12-10-10 LRV for virus, Giardia and …
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Detection, analysis, and photocatalytic destruction of the freshwater taint compound geosmin.
… standard water treatment such as filtration, coagulation, flocculation, sedimentation and chlorination. Activated carbon and membrane processes can physically remove GSM and MIB, but do not destroy them, and ozone treatment can be expensive. Titanium dioxide (TiO2) photocatalysis has recently …
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Water treatment analysis guide
… water treatment system, comprising; aeration, coagulation, flocculation, dissolved air floatation, sedimentation, filtration and disinfection. It also comments on the water quality that warrants certain process steps to assist the process engineer in choosing the correct configuration. For most …
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Renewable and sustainable water treatment using Moringa oleifera Lam. and biochar
… drinking water by removing contaminants through coagulation-flocculation and adsorption, respectively. Regarding using Moringa oleifera, the current study fills the gap in the literature by exploring the optimum dose, shelf-life, settling time, storage temperature and the extractant used for …
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New composite coagulant from agro-waste (tapioca peel) and polyaluminium chloride for primary landfill leachate treatment
Coagulation-flocculation is one of the applications that work efficiently for stabilised leachate treatment, alongside the utilisation of chemical coagulants. On the contrary, the use of chemical coagulants has certain drawbacks towards the health of the ecosystem and living organisms. Hence, this …
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DEVELOPMENT OF PHOTOSYNTHETIC MICROBIAL FUEL CELLS FOR AZO DYE DEGRADATION
… dye removal strategies such as adsorption, coagulation/flocculation, electrochemical oxidation, and anaerobic digestion often suffer from limitations including incomplete degradation, high operational costs, formation of toxic byproducts, or secondary pollution. In this study, photosynthetic …
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Novel fibrillar carbon nanotube heat transfer gels with enhanced thermal conductivities
… that sonication-homogenizing-mixing affects the coagulation-flocculation-aggregation-agglomeration of the nanotubes. Additionally we used two new TC instruments, the Mathis-Hot Disk and KD2 systems, to provide accurate and reproducible data with a 10% and 4% error margin for the Mathis and KD2, …
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Ozone and biofiltration as an alternative to reverse osmosis for removing PPCPs and EDCs from wastewater
… and wastewater treatment techniques, such as coagulation, flocculation, and sedimentation for water treatment and the conventional activated sludge process for wastewater treatment, have shown only limited success in their removal. Although there is a lack of evidence linking these emerging …
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