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Acid dye wastewater

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Acid dye wastewater
Combined Electrocoagulation/Electrowinning Process for ...
Combined Electrocoagulation/Electrowinning Process for ...

wastewaters comprising electrocoagulation, acidic digestion and electrowinning. The wastewater with the initial Cu2+ ion concentration of 92 mg/L was first subjected to electrocoagulation where it successfully decreased under the upper allowed

Characteristic Study of Electroplating and Dye Industrial ...
Characteristic Study of Electroplating and Dye Industrial ...

efficiencies is to be more than 90% but it is identified as the electroplating and dye industries effluent had a low treatment efficiencies of about only 80-85%. And the electroplating wastewater has more heavy metal which has more carcinogenic effects which causes various health problems. And also the effluent of dyes in waste water concentration

Wastewater treatment: a case study of electronics ...
Wastewater treatment: a case study of electronics ...

20/9/2018, · However, electroplating wastewater has low organic matter, but have a high toxicity. Among the prime contaminants in electroplating wastewater, cyanide and suspended metals are of great concern. To obtain high-quality electroplated products, cyanide is extensively used (Zhang et al. 2015 ), which results in the production of toxic wastewater which contains cyanide.

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

Because pH is simply another means of referring to the hydrogen ion concentration, ,acidic, and basic solutions can be distinguished on the basis of pH values: pH < 7 ,Acidic, solution . pH = 7 Neutral solution . pH > 7 Basic solution . Neutralization of ,wastewater, that is highly ,acidic, (low pH) or highly basic (high pH) is required for

Electroplating Wastewater Treatment_Method
Electroplating Wastewater Treatment_Method

Electroplating, factory ,wastewater, discharged serious confusion (The quality of employees is poor and they are arranged in a row to save time.) ,Wastewater, is not categorized into categories. The chemicals used in each sort of ,wastewater, are highly targeted in order to reduce costs.As a result, the ,wastewater, of each category is poorly treated, and the integrated water is still not up to standard.

Combined Electrocoagulation/Electrowinning Process for ...
Combined Electrocoagulation/Electrowinning Process for ...

wastewaters comprising electrocoagulation, acidic digestion and electrowinning. The wastewater with the initial Cu2+ ion concentration of 92 mg/L was first subjected to electrocoagulation where it successfully decreased under the upper allowed

Characteristic Study of Electroplating and Dye Industrial ...
Characteristic Study of Electroplating and Dye Industrial ...

efficiencies is to be more than 90% but it is identified as the electroplating and dye industries effluent had a low treatment efficiencies of about only 80-85%. And the electroplating wastewater has more heavy metal which has more carcinogenic effects which causes various health problems. And also the effluent of dyes in waste water concentration

Characterization and Treatment of Real Wastewater from an ...
Characterization and Treatment of Real Wastewater from an ...

23/5/2019, · The rejection of the stage of ,electroplating, deposit contains widely metals and the following anions: BO 3−, CO 2− 3, Cr 2 O 2− 7, F −, PO 4 3−, Cl −, NO −3 and SO 4 2−. Generally, ,wastewater, contains many heavy metals. The most important of cations are Cr 6+, it is reduced to Cr 3+, while CN-is oxidized in the preliminary ...

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

Because pH is simply another means of referring to the hydrogen ion concentration, ,acidic, and basic solutions can be distinguished on the basis of pH values: pH < 7 ,Acidic, solution . pH = 7 Neutral solution . pH > 7 Basic solution . Neutralization of ,wastewater, that is highly ,acidic, …

Wastewater treatment: a case study of electronics ...
Wastewater treatment: a case study of electronics ...

20/9/2018, · However, electroplating wastewater has low organic matter, but have a high toxicity. Among the prime contaminants in electroplating wastewater, cyanide and suspended metals are of great concern. To obtain high-quality electroplated products, cyanide is extensively used (Zhang et al. 2015 ), which results in the production of toxic wastewater which contains cyanide.

Removal of chromium (VI) from electroplating wastewater ...
Removal of chromium (VI) from electroplating wastewater ...

Although ,acidic, conditions (pH = 2-6) facilitated Cr (VI) adsorption, the exchanger was effective in neutral solution and even under weak base conditions. The equilibrium data fitted well with Langmuir adsorption model, and the maximum Cr (VI) adsorption capacities at pH 6.4 were 0.35, 0.36 and 0.38 mmol/g for 15, 25 and 35 degrees C, respectively.

The Adsorption Characteristic of Heavy Metals from ...
The Adsorption Characteristic of Heavy Metals from ...

The results showed that the best acidic conditions was pH = 7 ~ 8, and δ-MnO 2 combined with PFS adsorption on heavy metals of wastewater with Cu 2+, Pb 2+, Cr 3+ was better than the single use of δ-MnO 2 and PFS, δ-MnO 2: PFS for the 3:1 quality ratio, the first dosage of δ-MnO 2 stirring for half an hour then plus PFS mixing 2 hours, the heavy metal ions Cu 2+, Pb 2+, Cr 3+ from wastewater in the …

Electroplating- Lenntech
Electroplating- Lenntech

Wastewater, composition: Almost all the substances and products used in ,electroplating, can be found in the ,wastewater,, for instance ,acidic, solutions, toxic metals, solvents, and cyanides. This contamination is a consequence of the different process steps such as spillage, rinsing, dumping of process baths.

Electroplating Wastewater Treatment_Method
Electroplating Wastewater Treatment_Method

Electroplating, factory ,wastewater, discharged serious confusion (The quality of employees is poor and they are arranged in a row to save time.) ,Wastewater, is not categorized into categories. The chemicals used in each sort of ,wastewater, are highly targeted in order to reduce costs.As a result, the ,wastewater, of each category is poorly treated, and the integrated water is still not up to standard.

REMOVAL OF HEXAVALENT CHROMIUM FROM ELECTROPLATING ...
REMOVAL OF HEXAVALENT CHROMIUM FROM ELECTROPLATING ...

2-ions in ,acidic, medium according to reaction (1), as already stated. The generated H 2 gas produced at the cathode can remove dissolved organics or any suspended material by flotation. Furthermore, Fe3+ ions undergo hydration and give, depending on pH, cationic species such as Fe(OH)2+, Fe(OH) 2 2+ in ,acidic, conditions, Fe(OH) 3 in neutral

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