addition amount of bentonite as flocculant in Oman
Effect of fine structure of chitosan-based flocculants on …
In addition, most of the raw materials of commercial organic synthetic polymer flocculants are derived from petroleum derivatives, which are biodegradable, and their degradation products are considered dangerous and may cause carcinogenesis (Bolto and Gregory, 2007; Li et al., 2017b).
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Use of the Potato Peels and the Bentonite as Additives of …
The main effect of dose of flocculant showed a removal of turbidity of 99.66% and 98.01% for bentonite and potato peel respectively, the BOD 5 was reduced from 317.03 mg/I to 94 mg/I. Examination of the parameters, measured after the coagulation-flocculation tests on wastewaters showed that the level of pollution had …
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Flocculation behaviour of bentonite clay-water systems
The effect of polyacrylamide (PAM) as flocculant, NaCl electrolyte concentration and pH on the degree of flocculation of bentonite suspension has been …
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Preparation and Mechanism of a New Enhanced Flocculant …
2.2.4. Mechanism of Preparation of Flocculant BTA. The preferred composition of the present product was manufactured in two separately manufactured portions or subcomponents (acid First Portion A and alkaline Second Portion B) by extruding a calcium bentonite component that was not acid-activated, together with an acid and optionally …
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Efficiency of a flocculent consisting of bentonite clay and fly …
In the first set of experiment, bentonite clay (BC) and fly ash (FA) were pulverised to 160 μm particle size respectively and rinsed with distilled water to remove impurities using 0.45 μm pore membrane (flocculent-A). Two other flocculants (flocculent-B and C) were prepared by pulverising the same reagents to the same size and mixed.
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Evaluation of the flocculation and de-flocculation …
Understanding the interaction mechanism between polymeric flocculants and solid particles in two oppositely charged solutions: bentonite and calcium fluoride, is of great practical and fundamental importance. In this work, inorganic flocculants based ... In addition, we evaluate the possibility of coagulation of bentonite by changing the ...
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Coagulation And Flocculation in Water Treatment Explained
🔎 Coagulation And Flocculation: Quick Overview. Just looking for a quick overview of coagulation and flocculation? Coagulation is the process of adding chemicals to water, causing them to bind together and form 'flocs'.. Flocculation is the process of adding flocculant to water, which further encourages floc formation and increases the floc …
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Measurement of Flocculation phenomena of Kaolin and Bentonite …
In addition, the flocculation of kaolin and bentonite powder mixtures in refined water and well water was examined. A modified version of an ordinary jar tester was used in the experiment.
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Effects of flocculant concentration on the turbidity and …
In this study, the sedimentation behavior of bentonite (Na and Ca bentonite) suspensions with different swelling potentials was investigated with single and combined coagulation and flocculation ...
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Enhancement of flocculation and shear resistivity of …
The optimum dosage of a flocculant or a coagulant reflects the amount that achieves the maximum treatment with minimum amount of chemicals. This ensures the …
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Treating Dye Wastewater of Reactive Brilliant Red K-2BP …
In addition, without flocculants, absorbed bentonite cannot settle and is difficult to be separated from the water. However, there has been little work on the combination of bentonite and flocculants. In this work, cetyltrimethylammonium chloride (CTAC)-modified bentonite combined with polyacry-lamide (PAM) flocculant is used for the removal of ...
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Flocculation of bentonite particles by a cyanobacterial …
Flocculation of bentonite suspensions by bioflocculant produced by the cyanobacterium Phormidium species strain J1 was correlated with the adsorption mechanism of the flocculant on the bentonite particles in the presence of various CaCl 2 concentrations. The optimal flocculant concentration decreased with an increase in …
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Enhancement of flocculation and shear resistivity of bentonite
The optimum dosage of a flocculant or a coagulant reflects the amount that achieves the maximum treatment with minimum amount of chemicals. This ensures the best performance with the lowest possible cost. Ideally, a turbid system tends to decrease in turbidity upon addition of coagulant dosages at the beginning, until the optimum dosage …
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INDUSTRIAL WASTEWATER PRODUCTS
RM-10® FLOCCULANTS Our trusted RM-10 flocculants are a non-hazardous blend of naturally occurring bentonite, pH adjusting agents, polymers and other proprietary components. RM-10 flocculants offer you a safe, simple and cost-effective means of treatment and disposal for your various wastewater streams. CETCO currently has over …
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The Aggregation of Bentonite Using Poly(N-isopropylacrylamide…
Abstract. Sedimentation tests of bentonite suspension were carried out by adding various concentrations of poly(N-isopropylacrylamide) (PNIPAM) with different molecular weights as flocculant below and above lower critical solution temperature (LCST).Also, the effect of PNIPAM on aggregation of bentonite was investigated by sedimentation rate, turbidity …
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Preparation, Performances, and Mechanisms of Microbial Flocculants …
In recent years, close attention has been paid to microbial flocculants because of their advantages, including safety to humans, environmental friendliness, and acceptable removal performances. In this review, the preparation methods of microbial flocculants were first reviewed. Then, the performances of bioflocculants in the removal of …
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Effects of a new synthetic Fe-PAM flocculants on filtration …
The optimal flocculation conditions for various types of PAM and Fe-PAM were evaluated through flocculation stirring experiments. The stirring speeds ranged from 200 to 500 rpm, and the stirring times varied from 5 to 30 s (Table 2).The flocculation reaction conditions were assessed using the GT value, which is the product of the …
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(PDF) The Aggregation of Bentonite Using Poly(N …
PDF | On Jan 1, 2018, Ayano Nakamura and others published The Aggregation of Bentonite Using Poly(N-isopropylacrylamide) as a Flocculant | Find, read and cite all the research you need on …
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Flocculant
When the pores in the soil are large, it is difficult to achieve the desired conditioning effect by using bentonite or flocculants alone. Adding flocculants ... In another study, addition of a small amount of Ca 2+ improved flocculating efficiency from 72% to 83% in the mass culture of Chlorella vulgaris [77].
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Valorization of Cherry By-Products as Coagulant/Flocculants …
CFD processes occur by the addition of coagulants/flocculants to wastewater, ... for example, the types of coagulant/flocculant agents, the amount of coagulant/flocculant, the stirring and pH ... "Valorization of Cherry By-Products as Coagulant/Flocculants Combined with Bentonite Clay for Olive Mill Wastewater …
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(PDF) The effect of single and combined …
In this study, the sedimentation behavior of bentonite (Na and Ca bentonite) suspensions with different swelling potentials was investigated with single and combined coagulation and flocculation ...
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Performance of bentonite clay as a coagulation …
The combined use of aluminum sulfate and bentonite has resulted in a 98.2% reduction in phosphate, thereby reducing the amount of aluminum sulfate required. ...
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The enhanced dewaterability of sludge by a starch-based flocculant …
The coagulation and skeleton builder combination process thus has the advantages of high-cost performance and ease of operation by the direct addition of flocculants and skeleton builders without ...
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Experimental Investigation on the Effectiveness of Flocculant …
After addition of flocculant into the solution, a uniform stirring was given and was allowed for floc formation. Turbidity Measurements. In this laboratory experiment, …
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ACCOFLOC ® Flocculant Aid
• AccoFloc 350 flocculant aid is a high-activity powdered sodium bentonite chosen especially for its flocculation characteristics. • AccoFloc SDG flocculant aid is a high-activity granular sodium bentonite. It is manufactured as an agglomerated (uniform granular particles) product which allows it to immediately disperse when mixed with water.
ادامه مطلبBentonite
Treatment of acid-cracked waste liquor from wool scouring can also be assisted by the addition of bentonite to aid flocculation (Heisey, 1977). Many different clay minerals are more effective than alum, polyaluminium chloride, and four organic flocculants for the removal by flocculation of red-tide and brown-tide organisms (Sengco et al., 2001 ...
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Frontiers | Evaluation of Anionic and Cationic Pulp-Based Flocculants …
where T 0 is the turbidity of the initial wastewater at time zero, and T f is the turbidity of the supernatant of the treated sample at a given time. In some cases, values of turbidity removal lower than zero were obtained. This is because just after addition of bentonite turbidity usually increases, and, if the settling of the particles is poor, even …
ادامه مطلبEnhancement of flocculation and shear resistivity of …
Bentonite suspension was prepared at a concentration of 1.5 g/L by adding a calculated amount of bentonite to water in a high-shear homogenizer. Beakers were then placed in the jar test (Stuart Flocculator SW6, UK); a predetermined amount of …
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Effect of fine structure of chitosan-based flocculants on the
The obtained flocculants were used to flocculate bentonite and humic acid solution. ... by the combined addition of bentonite. For an equivalent removal of contaminants, the required dosage of ...
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Biopolymer-based flocculants: a review of recent technologies
Biopolymer-based flocculants have become a potential substitute for inorganic coagulants and synthetic organic flocculants due to their wide natural reserves, environmental friendliness, easy natural degradation, and high material safety. In recent years, with more and more attention to clean technologies, a lot of researches on the modification and …
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