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Treatment of oilfield fracturing flowback fluid by two-stage oxidation process_ Chemical environmental protection_ Issue 03

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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Treatment of oilfield fracturing flowback fluid by two-stage oxidation process_ Chemical environmental protection_ Issue 03
Sulfuric Acid - Windows to the Universe
Sulfuric Acid - Windows to the Universe

3/2/2006, · These droplets ,containing sulfuric acid, fall from the sky as ,acid, rain. Humans produce more than 100 million tons of ,sulfuric acid, worldwide each year. In fact, water is the only chemical compound we produce more of! ,Sulfuric acid, is used in the production of phosphate fertilizers, for processing ores and ,wastewater,, in the refining of oil and ...

Defining Hazardous Waste: Listed Characteristic and Mixed ...
Defining Hazardous Waste: Listed Characteristic and Mixed ...

Wastewater, treatment sludges from electroplating operations except from the following processes: (1) ,Sulfuric acid, anodizing of aluminum; (2) tin plating on carbon steel; (3) zinc plating (segregated basis) on carbon steel; (4) aluminum or zinc-aluminum plating on carbon steel; (5) cleaning/stripping associated with tin, zinc and aluminum plating on carbon steel; and (6) …

Highly Effective Removal of Toxic Cr(VI) from Wastewater ...
Highly Effective Removal of Toxic Cr(VI) from Wastewater ...

Sulfuric acid modified avocado seed, (ASSA), as a low-cost carbonized adsorbent, was investigated for the removal of toxic Cr(VI) from water/,wastewater, in batch experiments. A low temperature (100 °C) chemical carbonization treatment was employed for the production of the adsorbent. FE-SEM and HR-TEM images revealed the formation of agglomerated and rodlike structured particles after ...

Heavy Metals Removal Industrial Wastewater Solutions
Heavy Metals Removal Industrial Wastewater Solutions

Water tinged with ,sulfuric acid, leached other impurities from the coal, producing an acidic runoff contaminated with heavy metals. The desire to eliminate all types of basins and ponds has prompted industry to use more refined treatment systems. Acidic streams ,containing, iron, aluminum, and sulfate are treated for removal of these contaminants.

Treatment of wastewater containing COD and surfactants ...
Treatment of wastewater containing COD and surfactants ...

10 m³ / d ,wastewater, from a contract manufacturer of cosmetic products contains a COD load of approx. 50 g / L, the majority of which are anionic, nonionic and cationic surfactants. The ,wastewater, from the company means that the municipal sewage treatment plant regularly overflows.

WASTEWATER TREATMENT PROCESS - SUMITOMO METAL …
WASTEWATER TREATMENT PROCESS - SUMITOMO METAL …

In the ,wastewater, treatment for a ,sulfuric acid,-acidic ,wastewater containing, aluminum, magnesium, and manganese, a magnesium oxide is used for part or all of the neutralizing agent to be added, the magnesium oxide is produced through the following steps (1) to (4): (1) effluent ,wastewater, obtained by separating aluminum and manganese from ,sulfuric acid,-acidic ,wastewater, …

Treatment of wastewater containing COD and surfactants ...
Treatment of wastewater containing COD and surfactants ...

10 m³ / d ,wastewater, from a contract manufacturer of cosmetic products contains a COD load of approx. 50 g / L, the majority of which are anionic, nonionic and cationic surfactants. The ,wastewater, from the company means that the municipal sewage treatment plant regularly overflows.

Sodium Chlorite Hydrogen Sulfide Control in Wastewater ...
Sodium Chlorite Hydrogen Sulfide Control in Wastewater ...

wastewater, treatment operations. Hydrogen sulfide is naturally converted to ,sulfuric acid,, which is corrosive towards steel and concrete. Control of H 2 S will result in increased life and lower maintenance cost for facilities and piping. In addition, worker safety is of concern as hydrogen sulfide is extremely toxic

Sulphuric acid - Lenntech
Sulphuric acid - Lenntech

Further evaporation in platinum or iron pans yields an ,acid, of 66° Be., ,containing, 93.5 per cent of H2S04, and known as oil of vitriol. Faming or Nordhausen ,acid,, which is still more concentrated, is prepared by special means. It is essentially a solution of sulphuric anhydride (S03) in ,sulphuric acid,.

Sodium Chlorite Hydrogen Sulfide Control in Wastewater ...
Sodium Chlorite Hydrogen Sulfide Control in Wastewater ...

wastewater, treatment operations. Hydrogen sulfide is naturally converted to ,sulfuric acid,, which is corrosive towards steel and concrete. Control of H 2 S will result in increased life and lower maintenance cost for facilities and piping. In addition, worker safety is …

Heavy Metals Removal Industrial Wastewater Solutions
Heavy Metals Removal Industrial Wastewater Solutions

Water tinged with ,sulfuric acid, leached other impurities from the coal, producing an acidic runoff contaminated with heavy metals. The desire to eliminate all types of basins and ponds has prompted industry to use more refined treatment systems. Acidic streams ,containing, iron, aluminum, and sulfate are treated for removal of these contaminants.

Hydrogen Sulfide treatment- H2S Gas in Wastewater - Aquafix
Hydrogen Sulfide treatment- H2S Gas in Wastewater - Aquafix

High amounts of ,sulfuric acid, (results from oxidation of hydrogen ,sulfide, by Thiobacillus) lowers the pH of ,wastewater, and contributes to the deterioration of concrete and pipe corrosion (7). Stainless Steel – Even stainless steel is subject to corrosion by bacteria, especially if the bacteria are incorporated in a slime film attached to the metal.

Hydrogen Sulfide treatment- H2S Gas in Wastewater - Aquafix
Hydrogen Sulfide treatment- H2S Gas in Wastewater - Aquafix

High amounts of ,sulfuric acid, (results from oxidation of hydrogen ,sulfide, by Thiobacillus) lowers the pH of ,wastewater, and contributes to the deterioration of concrete and pipe corrosion (7). Stainless Steel – Even stainless steel is subject to corrosion by bacteria, especially if the bacteria are incorporated in a slime film attached to the metal.

The method of purification of sulfuric acid wastewater ...
The method of purification of sulfuric acid wastewater ...

There is also known a method of purification of ,sulfuric acid, and hydrochloric ,acid wastewater containing, compounds of vanadium, manganese and chromium, which includes operations neutralization water with lime milk, the precipitation of heavy metal ions by sodium sulfide and subsequent alkalization of ,wastewater, enter the polyacrylamide and the clarification of water in settling apparatus ...

Sulfuric acid - Wikipedia
Sulfuric acid - Wikipedia

Sulfuric acid, (American / IUPAC spelling) or sulphuric ,acid, (traditional / British spelling), also known as oil of vitriol, is a mineral ,acid, composed of the elements sulfur, oxygen and hydrogen, with molecular formula H 2 SO 4.It is a colourless and viscous liquid that is miscible with water at all concentrations.

What chemicals are used and controlled in primary ...
What chemicals are used and controlled in primary ...

Certain acidic chemicals used to lower ,wastewater, pH are: ,Sulfuric acid, (H2S0 4) is the cheapest and most readily available. It is strongly corrosive, dense, oily and clear or dark brown (depending on purity). ,Sulfuric acid, should be of the USP (United States Pharmaceutical) grade, free of heavy metals.

WASTEWATER TREATMENT PROCESS - SUMITOMO METAL …
WASTEWATER TREATMENT PROCESS - SUMITOMO METAL …

In the ,wastewater, treatment for a ,sulfuric acid,-acidic ,wastewater containing, aluminum, magnesium, and manganese, a magnesium oxide is used for part or all of the neutralizing agent to be added, the magnesium oxide is produced through the following steps (1) to (4): (1) effluent ,wastewater, obtained by separating aluminum and manganese from ,sulfuric acid,-acidic ,wastewater, is concentrated, and ...

Toxic wastewater from copper mine spills into river in ...
Toxic wastewater from copper mine spills into river in ...

In addition to the ,sulfuric acid, used for processing extracted copper from the mine, the leached ,wastewater, also contains heavy metals such as arsenic …

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