Aluminum sulfate (alum), ferrous sulfate, ferric chloride and ferric chloro sulfate were commonly used as coagulants . Additionally, high COD removal capacities have been observed during the combined action of alum and lime for the treatment of stabilized leachates.
PolyAluminumFerricSilicateChloride in Water and Wastewater Treatment Baoyu Gao, Qinyan Yue, and Bingjian Wang ... Stock solution of M AlCl 3 or FeCl 3 was diluted with distilleddeionized ... a conventional Jar–test apparatus, the DC–506 Laboratory Stirrer (Huashui
ferric chloride and ferric chlorosulfate were commonly used as coagulants. ... pH of solution and addition of polyelectrolyte as coagulant ... Standard jar test with minor modification was used in the laboratory experiment. The procedures included rapid mixing, followed by slow mixing and settling. ...
Nov 28, 2014· jar test established: Jar test determined the optimum dose of ferric chloride is 45 mg/L. Plant adding correct 4dose (5mg/L) for optimum turbidity The ferric chloride plant dose could potentially be lowered to 4 mg/l if chemical cost is of concern. Id like to introduce Bob Jolly. Relief Control Center Operator. And Now For A Curveball .
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3 6H2O) and ferric sulfate 7hydrate ( 2O). All coagulants were prepared in M stock solution. Volumes of stock solutions were added to 800 mL sample volumes to obtain the desired final metal salt solutions: 100, 200, 300 and 400 mg/L for aluminum sulfate and for ferric chloride, and 250, 550, 800, 1050 mg/L for ferric sulfate.
A jar test is ideal to asses the influence of these process parameters within a short time. Adding ferric chloride causes a number of hydroly sis reactions, where the iron ions react as an acid, thereby reducing the pH. As a result of these reactions iron hydroxide already precipitates in an acidic environment.
ferric sulfate, and ferric chloride. Cationic polymers may also be used as primary ... coagulants are typically generated by partially neutralizing concentrated solutions of alum or ferric chloride with a base such as sodium hydroxide prior to their use in the coagulation process ... controllers, and oxidants. The jar test should simulate ...
Stock FeC13 solution (1000 ppm) was prepared by dissolving lg of AR grade ferric chloride solid in 1L of deionized water. The anionic polymer used was a commercially available high molecular weight polyacrylamide flocculant .
Ferric Chloride Etchant Solution is used to etch PCB's (printed circuit boards) and in jewelry making as an etchant for copper, silver, brass, and other metals. Use caution when handling this acdic 40% ferric chloride solution. Protect eyes with goggles and hands with gloves.
preparing alum stock solution, and ferric chloride (FeCl 3) salt was used for preparing ferric chloride stock solution. Bicarbonate stock solution was prepared by dissolving ... mixing at 25 rpm in a jar test apparatus. The flocs were allowed to settle down for 15 minutes. Then the final pH was measured and samples were collected for analysis of
Jar test experiments on the collected samples of 1L volume were used to study the performance of Aluminum Sulphate (Al2(SO4)) and Ferric Chloride (FeCl3. 6H2O) coagulants on a six stirrer DBK Flocculator Jar testing apparatus (Fig 2.) at room temperature with experimental characteristics as summarized in Table 1.
determined. Then, Jar test was done on them separately using three coagulants copper sulfate, ferric chloride and aluminum sulfate and optimum concentration of them were determined in removing turbidity (Kent,, 1992) and reducing microbial communities. In this research, to determine the optimum concentration, injecting
Phosphorus Removal from Water and Waste Water by Chemical ... a series of jar test was conducted to evaluate the optimum pH, dosage and performance parameters for coagulants alum and calcium chloride. Phosphorus removal by alum was found ... the stock solution (1×10 3 M KH2PO4):,,, by using 50cm3 volumetric flasks for ...
for 2 h at 60 °C. To this, a solution, 1 M of ferric chloride (prepared in 50 mL of distilled water) ... The jar test used in our experiments was a programmable apparatus (TA6, Wuhan, China). It ... sample in the jar was stirred rapidly at a paddle speed of 120 rpm for 2 min then stirred slowly at a
The "ferric chloride test" is a traditional colorimetric test for phenols which uses a 1% iron(III) chloride solution that has been neutralised with sodium hydroxide until a slight precipitate of FeO(OH) is formed. The mixture is filtered before use.