• characterizing the performance of coagulation-flocculation

    Characterizing the performance of coagulation-flocculation

    Characterizing the performance of coagulation-flocculation using natural coagulants as pretreatment of tannery wastewater C. Fersi 1*, A. Ben Gamra 1, H. Bozrati 1, C. Gorgi 2, A. Irmani 2 1Laboratory of Material, Treatment and Analysis, INRAP, Biotechpole Sidi Thabet 2020, Tunisia 2National Center of Leather and Shoes, CNCC, Megrine, Tunisia

  • characterizing the performance of coagulation-flocculation

    Characterizing the performance of coagulation-flocculation

    PDF On Jan 1, 2018, C Fersi and others published Characterizing the performance of coagulation-flocculation using natural coagulants as pretreatment of tannery wastewater

  • coagulation and flocculation in water and wastewater

    Coagulation and Flocculation in Water and Wastewater

    Coagulation and Flocculation in Water and Wastewater TreatmentThe CoagulantsRemoval of Natural Organic MatterPathogen RemovalRemoval of InorganicsWastewater TreatmentFactors Affecting Coagulation OperationsRapid MixingFlocculationTesting and ControlSludge HandlingFurther ReadingReferencesRelated PublicationsCoagulation and flocculation are an essential part of drinking water treatment as well as wastewater treatment. This article provides an overview of the processes and looks at the latest thinking. Material for this article was largely taken from reference1.Coagulation and flocculation are essential processes in various disciplines. In potable water treatment, clarification of water using coagulating agents has been practiced from ancient times. As early as 2000 BC the Egyptians used al

    The role of coagulation in water treatment ScienceDirect

    Coagulation performance of TiCl 4, FeCl 3 and Al 2 (SO 4) 3 was comparatively assessed for real water treatment . The results indicate that the TiCl 4 showed superior coagulation performance compared to that of FeCl 3 and Al 2 (SO 4) 3, with the maximum removal of UV 254-abs and DOC.

  • (pdf) combined application of coagulation/flocculation

    (PDF) Combined Application of Coagulation/Flocculation

    Coagulation-flocculation is conducted prior to ultrafiltration process to minimize the effect of fouling on membrane and to improve the performance of [Show full abstract] ultrafiltration process.

  • flocculation

    Flocculation

    The purpose of this test is to select types of coagulant (alum) and also to estimate the optimal dose needed in removing the charged particles that occurred in raw water. Jar test is an experiment to understand the processes of coagulation, flocculation and sedimentation (AWWA, 2011).

  • characterization and performance of a novel lignin-based

    Characterization and performance of a novel lignin-based

    Techniques such as coagulation-flocculation, adsorption, biodegradation, chemical oxidation and membrane separation are commonly used in dye wastewater treatment (Singh et al., 2015; Zhu et al., 2014). Dye removal from wastewater by sedimentation following flocculation is the traditional method.

  • coagulation and flocculation mrwa

    COAGULATION AND FLOCCULATION MRWA

    Coagulation and Flocculation Process Fundamentals 1 Coagulation and Flocculation . Groundwater and surface water contain both dissolved and suspended particles. Coagulation and flocculation are used to separate the suspended solids portion from the water. Suspended particles vary in source, charge, particle size, shape, and density. Correct

  • combined application of coagulation/flocculation

    Combined Application of Coagulation/Flocculation

    The results presented in Table 3 demonstrate variable physicochemical characteristics for the analyzed parameters. This variation among the obtained values can be related to the dirtiness present in the pieces of clothing within the period that the wastewater was collected since the higher the dirtiness, the higher the consumption of chemicals in the washing process.

  • combinedapplicationofcoagulation/flocculation

    CombinedApplicationofCoagulation/Flocculation

    when characterizing commercial laundry wastewater. As a result, they highlighted the relevance of treating this type of wastewater to reduce this parameter since a high quantity of surfactants can lead to the formation of foam and a‰ect the water quality, besides occasioning toxicity. According to Ahmad and El-Dessouky [2], the value of

  • journal of materials and environmental science

    Journal of Materials and Environmental Science

    Characterizing the performance of coagulation-flocculation using natural coagulants as pretreatment of tannery wastewater, C. Fersi, A. Ben Gamra, H. Bozrati, C

  • wastewater sludge dewaterability enhancement using

    Wastewater sludge dewaterability enhancement using

    2016-11-15· Read "Wastewater sludge dewaterability enhancement using hydroxyl aluminum conditioning: Role of aluminum speciation, Water Research" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • treatment of road runoff by coagulation/flocculation

    Treatment of road runoff by coagulation/flocculation

    2019 (English) In: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 79, no 3, p. 518-525 Article in journal (Refereed) Published Abstract [en] A laboratory investigation of the treatment potential of a coagulation process in the context of stormwater treatment was undertaken.

  • wastewater sludge dewaterability enhancement using

    Wastewater sludge dewaterability enhancement using

    In addition, polymeric aluminum salt coagulant (Al-b, Al-c) had better performance in compressing extracellular polymeric substances (EPS) structure and removing sticky protein-like substances from soluble EPS fraction, contributing to improvement of sludge filtration performance. Therefore, this study provides a novel solution for improving

  • water free full-text state of the art of online

    Water Free Full-Text State of the Art of Online

    Coagulation is an essential process for the removal of suspended and colloidal material from water and wastewater. However, no comprehensive or universally accepted mathematical description of the process has been developed so far. Therefore, process optimization and control is usually based on data from jar tests and simple flow-proportional dosing concepts, while more accurate concepts based

  • enhancement of cod removal from oilfield produced

    Enhancement of COD Removal from Oilfield Produced

    2019-09-03· The operation conditions of the pretreatment were optimized to lower the operation cost and improve the UF performance. The capability of the UF membrane in COD removal and cleaning strategy of the fouled membrane were also studied.

  • improvement of the flocculation process in water treatment

    Improvement of the flocculation process in water treatment

    Since no other flocculating agents should be added in water treatment with Moringa oleifera seed extract, this natural procedure for clarifying water is a combined coagulation-flocculation process. All previous investigations pointed out the advantages of Moringa oleifera as a treatment agent versus traditional coagulant combinations (FeCl 3 and Al 2 (SO 4 ) 3 ) with synthetic polyelectrolytes

  • removal of metals and hydrocarbons from urban snowmelt

    Removal of metals and hydrocarbons from urban snowmelt

    2019 (English) Licentiate thesis, comprehensive summary (Other academic) Abstract [en] Many different stormwater control measures (SCMs) can be implemented in order to mitigate issues with polluted stormwater flows into receiving water bodies.

  • wastewater sludge dewaterability enhancement using

    Wastewater sludge dewaterability enhancement using

    Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit.

  • occurrence and behaviors of fluorescence springerlink

    Occurrence and behaviors of fluorescence SpringerLink

    Abstract. Fluorescence excitation emission matrices-parallel factor analysis (EEM-PARAFAC) is a powerful tool for characterizing dissolved organic matter (DOM), and it is applied in a rapidly growing number of studies on drinking water and wastewater treatments.

  • water soluble polymer flocculants: synthesis

    Water Soluble Polymer Flocculants: Synthesis

    In addition to the rate of polymer adsorption and particle collisions, the rate at which the adsorbed polymer chains relax on the particle surface (eventually forming a flattened conformation) is crucial in determining the extent of flocculation, defined by Gregory as equilibrium and nonequilibrium flocculation. 9 In the latter, the adsorbed polymer is still extended when particles collide

  • characterization of dissolved organic matter in municipal

    Characterization of Dissolved Organic Matter in Municipal

    2014-01-24· Dissolved organic matter (DOM) in municipal wastewater was mainly characterized using high-performance liquid chromatography (HPLC) and size exclusion chromatography (HPSEC) with multi-excitation/emission fluorescence scan. Meanwhile, fluorescence excitation–emission-matrix combined with parallel factor analysis (EEM-PARAFAC) was also applied.

  • improvement of the flocculation process in water

    IMPROVEMENT OF THE FLOCCULATION PROCESS IN WATER

    characterizing the flocculant process in drinking water is a very important task. The interest in this aspect of Moringa oleifera has been pointed out by institutions such as the Food and Agricultural Organization of the United Nations (FAO). Its multiple uses have therefore been recommended (Jahn et

  • ozone/peroxide advanced oxidation in combination with

    Ozone/Peroxide Advanced Oxidation in Combination with

    performance. This pilot study investigated the effectiveness of advanced oxidation incorporating O 3 and hydrogen peroxide/ozone (H 2 O 2 /O 3) with biofiltration (containing biologically active carbon (BAC) and anthracite) for geosmin and MIB control and disinfection by-product (DBP) precursor reduction. Application of 0.2 H 2 O 2 /O 3

  • effect of the properties of coal surface and flocculant

    Effect of the properties of coal surface and flocculant

    Three coal samples, selected out of eight with well-characterized surface properties, were used in flocculation tests. A synthetic mixture of coal and silica was used in the selective flocculation experiments. The flocculants tested included: a hydrophilic polyacrylamide (PAM) and a semihydrophobic (F1029-D) flocculants and a totally hydrophobic latex prepared by emulsion polymerization (FR-7A

  • ultrapure water microelectronics

    Ultrapure Water Microelectronics

    Ultrapure Water General Filter Requirements Achieving and maintaining ultrapure water (UPW) is extremely important in light of its widespread presence throughout the manufacture of semiconductor integrated circuits. The technology of the industry has advanced so rapidly over the past few years that

  • occurrence and behaviors of fluorescence springerlink

    Occurrence and behaviors of fluorescence SpringerLink

    Fluorescence excitation emission matrices-parallel factor analysis (EEM-PARAFAC) is a powerful tool for characterizing dissolved organic matter (DOM), and it is applied in a rapidly growing number of studies on drinking water and wastewater treatments. This paper presents an overview of recent findings about the occurrence and behavior of PARAFAC components in drinking water and wastewater

  • department of civil, environmental and natural resources

    Department of Civil, Environmental and Natural Resources

    more attention has been given to characterizing and understanding different particle size fractions and their associations with pollutants commonly found in stormwater. It has been shown that the smaller particles are very important pollutant transporters, and should be considered when designing and implementing stormwater control measures. How-ever, the settling velocities for smaller sized

  • peer reviewed: characterizing aquatic dissolved organic

    Peer Reviewed: Characterizing Aquatic Dissolved Organic

    Fractal structure and permeability of membrane cake layers: Effect of coagulation–flocculation and settling as pretreatment steps. Separation and Purification Technology 2015, 143, 40-51. DOI: 10.1016/j.seppur.2015.01.020. M. I. Dinu. Interaction between metal ions in waters with humic acids in gley-podzolic soils.

  • optimization of time requirement for rapid mixing during

    Optimization of Time Requirement for Rapid Mixing During

    Abstract Coagulation involves the rapid mixing of chemicals with raw water to facilitate particle destabilization. This study used a photometric dispersion analyzer (PDA) coupled to a jar stirrer to monitor kinetics during the optimization of alum. The optimal conditions were as follows: sample pH 8; alum dosage, 6mg/l as Al3+; G-value, 116 s-1, rapid mixing time, 15seconds. Kinetic data

  • effect of dosing method on color removal performance

    Effect of dosing method on color removal performance

    2009-08-15· Read "Effect of dosing method on color removal performance and flocculation dynamics of polyferric-organic polymer dual-coagulant in synthetic dyeing solution, Chemical Engineering Journal" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

  • removal of norovirus from water by coagulation

    Removal of norovirus from water by coagulation

    Article Removal of norovirus from water by coagulation, flocculation and sedimentation processes. In this study, we determined the removal of a prototype human norovirus (Norwalk virus, NV) by bench-scale alum coagulation, flocculation and sedimentat...

  • wastewater sludge dewaterability enhancement using

    Wastewater sludge dewaterability enhancement using

    In addition, polymeric aluminum salt coagulant (Al-b, Al-c) had better performance in compressing extracellular polymeric substances (EPS) structure and removing sticky protein-like substances from soluble EPS fraction, contributing to improvement of sludge filtration performance. Therefore, this study provides a novel solution for improving

  • peer reviewed: characterizing aquatic dissolved organic

    Peer Reviewed: Characterizing Aquatic Dissolved Organic

    Fractal structure and permeability of membrane cake layers: Effect of coagulation–flocculation and settling as pretreatment steps. Separation and Purification Technology 2015, 143, 40-51. DOI: 10.1016/j.seppur.2015.01.020. M. I. Dinu. Interaction between metal ions in waters with humic acids in gley-podzolic soils.

  • influence of the mixing energy consumption affecting

    Influence of the Mixing Energy Consumption Affecting

    The operational significance of energy-intensive rapid mixing processes remains unaddressed in coagulation and flocculation of insoluble precipitates (flocs), which play an important role in the removal of impurities from drinking water supplies. In this study, the influence of rapid mixing and associated mixing energy on floc aggregation was examined for a surface water source characterized

  • review of low-cost point-of-use water treatment systems

    Review of low-cost point-of-use water treatment systems

    For communities in developing countries, the majority of drinking water-related issues are due to pathogens from poor sanitation, resulting in infection and diarrhea. One cause of this is that

  • improvement of the flocculation process in water

    IMPROVEMENT OF THE FLOCCULATION PROCESS IN WATER

    characterizing the flocculant process in drinking water is a very important task. The interest in this aspect of Moringa oleifera has been pointed out by institutions such as the Food and Agricultural Organization of the United Nations (FAO). Its multiple uses have therefore been recommended (Jahn et

  • wastewater sludge dewaterability enhancement using

    Wastewater sludge dewaterability enhancement using

    Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit.

  • development of transitional settling regimen

    Development of Transitional Settling Regimen

    Novel settling characteristic metrics were developed based on the fundamental mechanisms of coagulation, flocculation, and settling. The settling metrics determined parameters that are essential in monitoring and optimizing the activated sludge process without the need for

  • reversibility of pvdf membrane performance and structure

    Reversibility of PVDF Membrane Performance and Structure

    The use of periodical warm water (35oC) membrane treatment could completely or almost completely recover the membrane performance and pore size structure loss caused by cold water temperature, while the use of room temperature (23±1oC) treatment recovered majority of the membrane permeability and structure loss caused by cold water temperature.

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