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What is used to treat acidic industrial wastewater

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What is used to treat acidic industrial wastewater
CN102531226A - Method for treating acidic dye printing and ...
CN102531226A - Method for treating acidic dye printing and ...

The invention discloses a method for treating ,acidic, dye printing and dyeing ,wastewater,, which belongs to the field of ,wastewater, treatment. The method comprises the steps of (1) filtering collected ,acidic, printing and dyeing ,wastewater, through a screen, then enabling the ,acidic, printing and dyeing ,wastewater, to enter a regulation tank, and using alkali waste to regulate the pH value of the ...

Chlorine acid | Synonim
Chlorine acid | Synonim

Hypochlorous ,acid, (HOCL) is the most effective disinfectant in the ,chlorine, family available in ,dilute, solution. It is suggested that HOCL is 80 to 120 times more efficacious than sodium hypochlorite.5...

Textile Dyeing Wastewater Treatment - IntechOpen
Textile Dyeing Wastewater Treatment - IntechOpen

process, the average dyeing rate is more than 90%. It means that the residual dyeing rate in finishing ,wastewater, is about 10%, which is the main reason of contamination. According to the different dyes and process, the chroma is 200 to 500 times higher than before. pH is another factor of the dyeing ,wastewater, .

02401 - A NEW LOOK AT INDUSTRIAL WATER SYSTEM FOULING ...
02401 - A NEW LOOK AT INDUSTRIAL WATER SYSTEM FOULING ...

maintained constant by the addition of ,dilute hydrochloric acid, or ,dilute, sodium hydroxide. A range of pH values (3.0 to 9.0) was studied. During the precipitation experiments the solutions were stirred continuously at constant stirring speed (--350 evolutions per minute) with a Teflon

IS 3025 (Part 34): Method of Sampling and Test (Physical ...
IS 3025 (Part 34): Method of Sampling and Test (Physical ...

of water. Add 100 ml of concentrated ,hydrochloriC acid, and ,dilute, to 1 litre. 2.3.4 Procedure 2.3.4.1 Treatment of un distilled samples - If necessary, remove residual ,chlorine,. Add 1 ml of zinc sulphate solution to 100 ml of sample and mix thoroughly, Add 0'4 to 0'5 ml of 6 N sodium

Sodium hypochlorite - Wikipedia
Sodium hypochlorite - Wikipedia

Sodium hypochlorite, (commonly known in a ,dilute, solution as bleach) is a chemical compound with the formula NaOCl or NaClO, comprising a sodium cation (Na +) and a hypochlorite anion (OCl − or ClO −It may also be viewed as the sodium salt of hypochlorous ,acid,.The anhydrous compound is unstable and may decompose explosively. It can be crystallized as a pentahydrate NaOCl ·5 H

Process for purifying wastewater with hypochlorous acid ...
Process for purifying wastewater with hypochlorous acid ...

One method of producing ,high, purity concentrated HOCl solutions is that in which gaseous mixtures, having ,high, concentrations of hypochlorous ,acid, vapors and ,chlorine, monoxide gas and controlled amounts of water vapor are produced, for example, by the process described by J. P. Brennan et al in U.S. Pat. No. 4,147,761, which is incorporated herein its entirety by reference.

Wastewater & Effluent Treatment | B&V Chemicals
Wastewater & Effluent Treatment | B&V Chemicals

9% ,Hydrochloric acid,: Dosed 1:1 with BV123 through a ,chlorine, dioxide generator to produce ,chlorine, dioxide. ,Chlorine, dioxide is effective as both a disinfectant and an oxidant in ,wastewater, treatment where It destroys phenolics, simple cyanides and sulphides by …

Trichloroisocyanuric acid | C3Cl3N3O3 - PubChem
Trichloroisocyanuric acid | C3Cl3N3O3 - PubChem

Limit: When ready for use, the end-use ,concentration, of all di- or ,trichloroisocyanuric acid, chemicals in the solution is not to exceed 100 ppm determined as total available ,chlorine,. 40 CFR 180.940(c) (USEPA); U.S. National Archives and Records Administration's Electronic Code of Federal Regulations.

chlorine concentration for disinfection - Newswirl
chlorine concentration for disinfection - Newswirl

Copper(II)chloride (CuCl2) is used as a cathalyser during this so-called ‘Deaconprocess’: 4HCl + O2 -> 2H2O + 2Cl2 Finally, ,chlorine, can be produced by means of molten salts electrolysis and, mainly in laboratories, by means of ,hydrochloric acid, and manganese dioxide oxidation: MnO2 + 4HCl -> MnCl2 + 2H2O + Cl2 When gaseous ,chlorine, is added to water the following hydrolysis reaction takes ...

A PROCESS FOR PURIFYING IMPOTABLE WATER AND WASTEWATER …
A PROCESS FOR PURIFYING IMPOTABLE WATER AND WASTEWATER …

A process for treating ,wastewater, characterised by admixing with the ,wastewater, a solution consisting of hypochlorous ,acid, substantially free of ionic impurities ,containing, at least 0.5 percent by weight of HOCl and having a pH of less than 3, to prepare disinfected ,wastewater, having substantially no available ,chlorine, content.

Effluent Treatment Plant Design Operation And Analysis Of ...
Effluent Treatment Plant Design Operation And Analysis Of ...

These parameters are all used as a measure of the nutrientspresent in the ,wastewater,, as a ,high, nutrient content can result in excessive plant growth inreceiving water bodies, subsequent oxygen removal and the death of aquatic life.pHpH is a measure of the ,concentration, of hydrogen ions in the ,wastewater, and gives anindication of how ,acid, or alkaline the ,wastewater, is.

Industrial Wastewater Treatment | IWA Publishing
Industrial Wastewater Treatment | IWA Publishing

The two acids commonly used are ,hydrochloric acid, and sulfuric ,acid,. Wastewaters include acidic rinse waters together with waste ,acid,. Although many plants operate ,acid, recovery plants, (particularly those using ,Hydrochloric acid,), where the mineral ,acid, is boiled away from the iron salts, there remains a large volume of highly ,acid, ferrous sulfate or ferrous chloride to be disposed of.

Hazardous Waste Disposal Guide – Research Safety
Hazardous Waste Disposal Guide – Research Safety

Slowly stir ,acid, in a large amount of an ice-water-to ,dilute, to about 5% by volume. Prepare a base solution of one of the following: sodium carbonate (soda ash), or sodium hydroxide. The base ,concentration, should be 5 to 10 % for nitric and perchloric acids. A one-molar solution is about 4% (4 grams per 100 ml).

METHOD 9014 CYANIDE IN WATERS AND EXTRACTS USING ...
METHOD 9014 CYANIDE IN WATERS AND EXTRACTS USING ...

7.3.4 Pyridine-barbituric ,acid, reagent, C 5H 5N•C 4H 4N 2O 3 - Place 15 g of barbituric ,acid, in a 250-mL volumetric flask and add just enough water to wash the sides of the flask and wet the barbituric ,acid,. Add 75 mL of pyridine and mix. Add 15 mL of concentrated ,hydrochloric acid, (HCl), mix, and cool to room temperature. ,Dilute, to 250 mL ...

Laboratory Procedures: Analysis for Wastewater Treatment ...
Laboratory Procedures: Analysis for Wastewater Treatment ...

HYDROGEN-ION ,CONCENTRATION, DISCUSSION The ,acid, or alkali intensity, hydrogen-ion ,concentration,, of a solution is found by determining the pH. Ions are electrically charged atoms or groups of atoms. When ,acid, base or salt is dissolved in a suitable solvent the molecules dissociate into smaller units, some of which have a positive electric charge and others are equal negative charge.

Ion Exchange Softeners and Dealkalizers – Water Technology ...
Ion Exchange Softeners and Dealkalizers – Water Technology ...

15/5/2017, · Strong ,acid, cation resins contain a sulfonic ,acid, group on the exchange site. They are capable of removing all cations (positively charged ions) associated with strong and weak ,acid, salts. These resins are used in a wide variety of applications, but are commonly found in sodium ion exchangers (water softeners) used for routine hardness removal, hydrogen dealkalizers, and for cation …

METHOD 9014 CYANIDE IN WATERS AND EXTRACTS USING ...
METHOD 9014 CYANIDE IN WATERS AND EXTRACTS USING ...

7.3.4 Pyridine-barbituric ,acid, reagent, C 5H 5N•C 4H 4N 2O 3 - Place 15 g of barbituric ,acid, in a 250-mL volumetric flask and add just enough water to wash the sides of the flask and wet the barbituric ,acid,. Add 75 mL of pyridine and mix. Add 15 mL of concentrated ,hydrochloric acid, (HCl), mix, and cool to room temperature. ,Dilute, to 250 mL with water.

IS 3025-34 (1988): Methods of sampling and test (physical ...
IS 3025-34 (1988): Methods of sampling and test (physical ...

400 ml of water, add 100 ml of concentrated ,hydrochloric acid, and ,dilute, to 1 litre. b) Cqbaltous chloride solution - Dissolve of water. Add 100 ml of concentrated 2.3.4 Procedure 12’0 g of cobaltous chloride ( CoCh.GH10 ) in 200 ml ,hydrochloric acid, and ,dilute, to 1 litre.

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