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Adjustment of acid wastewater by desulfurization ash

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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Adjustment of acid wastewater by desulfurization ash
Heterogeneous Catalytic Process for Wastewater Treatment ...
Heterogeneous Catalytic Process for Wastewater Treatment ...

13/6/2019, · The ,principle, of heterogeneous catalytic treatment process of refractory ,wastewater, was analyzed, and several different types of heterogeneous catalytic oxidation processes, technical progresses, and application examples were presented. The mechanisms of heterogeneous catalytic oxidation degradation of pollutants in ,wastewater, were also discussed.

water treatment - the oxidants and disinfectants - Degremont®
water treatment - the oxidants and disinfectants - Degremont®

They share the ,principle, whereby they are capable of generating a more powerful and less selective secondary oxidant in the reaction medium by activating an available primary oxidant. In most cases, the reactive species formed will be the hydroxyl radical whose standard oxidising reduction potential reaches 2.8V …

(PDF) Treatment of Dairy Processing Wastewaters | chindia ...
(PDF) Treatment of Dairy Processing Wastewaters | chindia ...

Final ,wastewater, polishing after biological treatment usually involves chemical treatment of the ,wastewater, with calcium, ,iron,, or aluminum salts to remove dissolved nutrients such as nitrogen and phosphorus.

(PDF) Treatment of Textile Wastewater by Adsorption ...
(PDF) Treatment of Textile Wastewater by Adsorption ...

The results indicated that the use of Tamarind kernel ,powder,, as a coagulant to remove COD, TDS, BOD, TS, turbidity and sulphate present in a dairy industry ,wastewater, seems to be an economical ...

Method for stabilization of hazardous wastes with dilute ...
Method for stabilization of hazardous wastes with dilute ...

U.S. Pat. No. 5,037,479 discloses a method for ,treating, highly hazardous waste containing unacceptable levels of TCLP Pb such as lead by mixing the solid waste with a buffering agent selected from the group consisting of magnesium oxide, magnesium hydroxide, reactive calcium carbonates and reactive magnesium carbonates with an additional agent which is either an ,acid, …

Methods for Chemical Analysis of Water and Wastes
Methods for Chemical Analysis of Water and Wastes

----- water, 1 1 hydrochloric ,acid,, tap water and finally deionized distilled water in that order NOTE 1: Chromic ,acid, may be useful to remove organic deposits from glassware, however, the analyst should be cautioned that the glassware must be thoroughly rinsed with water to remove the last traces of chromium This is especially important if chromium is to be included in the analytical …

Effect of Iron-Carbon Micro-Electrolysis-Fenton on the ...
Effect of Iron-Carbon Micro-Electrolysis-Fenton on the ...

In this paper, combined ,with iron,-carbon micro-electrolysis-Fenton method, the sludge was adjusted, and the cracking performance and dewatering performance of the sludge were studied. Single factor experiments show that when the amount of ,iron powder, is 1.2 g/L, the reaction time is 45 min, H2 O 2When the dosage was 4.2 g/L, the protein and polysaccharide content in the …

Chemical precipitation of heavy metals from wastewater by ...
Chemical precipitation of heavy metals from wastewater by ...

Photocatalysis has significant limitations and it is only attractive for certain types of ,wastewater,, the most common application is treatment of ,wastewater, containing dichromate. Dichromate can be converted into less toxic Cr 3+ via the photocatalysis process, but the Cr 3+ ion cannot be removed from ,wastewater,.

Principle and Process of Heavy Metal Removal from Sewage ...
Principle and Process of Heavy Metal Removal from Sewage ...

The sufficient removal of heavy metals from sewage sludge remains to be achieved. Heavy metals that exist on the cell surfaces of the microorganisms in the sludge seem to be dissolved by ,acid, treatments. This study shows that heavy metals in sewage sludge can be removed easily by ,treating, a sludge filter cake with phosphoric ,acid, containing hydrogen peroxide for 1 h at room temperature ...

water treatment - the oxidants and disinfectants - Degremont®
water treatment - the oxidants and disinfectants - Degremont®

They share the ,principle, whereby they are capable of generating a more powerful and less selective secondary oxidant in the reaction medium by activating an available primary oxidant. In most cases, the reactive species formed will be the hydroxyl radical whose standard oxidising reduction potential reaches 2.8V at 25°C.

Principle and Process of Heavy Metal Removal from Sewage ...
Principle and Process of Heavy Metal Removal from Sewage ...

This study shows that heavy metals in ,sewage sludge, can be removed easily by ,treating, a sludge filter cake with phosphoric ,acid, containing hydrogen peroxide for 1 h at room temperature. Phosphoric ,acid, of 8% concentration with hydrogen peroxide showed good removal rates of heavy metals comparable to those by 1 N hydrochloric ,acid,.

Chemical precipitation of heavy metals from wastewater by ...
Chemical precipitation of heavy metals from wastewater by ...

Photocatalysis has significant limitations and it is only attractive for certain types of ,wastewater,, the most common application is treatment of ,wastewater, containing dichromate. Dichromate can be converted into less toxic Cr 3+ via the photocatalysis process, but the Cr 3+ ion cannot be removed from ,wastewater,.

Heterogeneous Catalytic Process for Wastewater Treatment ...
Heterogeneous Catalytic Process for Wastewater Treatment ...

13/6/2019, · The ,principle, of heterogeneous catalytic treatment process of refractory ,wastewater, was analyzed, and several different types of heterogeneous catalytic oxidation processes, technical progresses, and application examples were presented. The mechanisms of heterogeneous catalytic oxidation degradation of pollutants in ,wastewater, were also discussed.

CN104876816A - Synthetic method of ferrous lactate ...
CN104876816A - Synthetic method of ferrous lactate ...

According to the synthetic method,, ferrous, carbonate and lactic acid are taken as raw materials and directly react to generate, ferrous, lactate and carbon dioxide, so that the introduction of...

Treatment of wastewater - Soane Energy LLC
Treatment of wastewater - Soane Energy LLC

A method of removing contaminants from frac flowback water or oilfield produced water, wherein the contaminants comprise dissolved ,iron,, suspended solids, and oil, and further wherein the dissolved ,iron, comprises ferrous ,iron,, said method comprising the steps of: contacting the water with an oxidizing agent wherein the oxidizing agent oxidizes the ferrous ,iron, to form precipitated ferric ,iron,, and removing the precipitated ferric ,iron, …

Method for stabilization of hazardous wastes with dilute ...
Method for stabilization of hazardous wastes with dilute ...

U.S. Pat. No. 4,652,381 discloses a process for ,treating, industrial ,wastewater, contaminated with battery plant waste, such as sulfuric ,acid, and heavy metals by ,treating, the waste waster with calcium carbonate, calcium sulfate, calcium hydroxide to complete a separation of the heavy metals. However, this is not for use in a solid waste situation.

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