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Fracturing flowback fluid treatment equipment

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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Fracturing flowback fluid treatment equipment
Evaluation of Recent Treatment Techniques for Removal of ...
Evaluation of Recent Treatment Techniques for Removal of ...

cheapest for the removal and ,recovery, of chromium. The optimum pH for maximum removal with 1 ime is 6.6; removal of chromium exceed- ed 98% at that pH. The precipitated chromium hydroxide is separated by settling, filtered, and redissolved in sulfuric ,acid, to form chromium ,sulfate, which can be …

Education Development Center
Education Development Center

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Apache2 Ubuntu Default Page: It works
Apache2 Ubuntu Default Page: It works

A A's AMD AMD's AOL AOL's AWS AWS's Aachen Aachen's Aaliyah Aaliyah's Aaron Aaron's Abbas Abbas's Abbasid Abbasid's Abbott Abbott's Abby Abby's Abdul Abdul's Abe Abe's Abel Abel's

Cyanide Destruction Methods and Processes
Cyanide Destruction Methods and Processes

The process is optimally carried out at a pH of about 5.0 to 6.0 and iron is added as ,ferrous sulfate, (FeSO4-7H2O).,Ferrous sulfate, usage ranges from about 0.5 to 5.0 moles Fe per mole of CN- depending on the desired level of treatment.

Hexavalent Chromium Removal by Reduction with Ferrous ...
Hexavalent Chromium Removal by Reduction with Ferrous ...

The process consisted of the reduction of Cr(VI) to Cr(III) using ,ferrous sulfate, followed by coagulation and filtration. Results indicated that the technology could reduce influent Cr(VI) concentrations of 100 μg L -1 to below detectable levels and also remove total Cr (Cr(VI) plus Cr(III)) to very low concentrations (<5 μg L -1 ) under optimized conditions.

Sulfuric acid waste recycling by regenerative process ...
Sulfuric acid waste recycling by regenerative process ...

Ferrous sulfate, has been researched extensively as a recovery product for, waste sulfuric acid,, for example, in the steel industry as pickle liquor recovery,, Sulfuric Acid, and, Ferrous Sulfate, Recovey from Waste Pickle Liquor by Thornton, W. E. in US EPA ORD Series EON-660/2-73-032 (01/00/94) and Recovery of, Ferrous Sulfate, and, Sulfuric Acid, from Spent Pickle Liquor of the Steel Industry by …

Ferrous Sulfate Products test - C T I Crown Technology
Ferrous Sulfate Products test - C T I Crown Technology

Crown, is also the leader in acid recovery systems which produce the highest grade, ferrous sulfate, from the steel industry pickling process. Crown’s Ferrous Sulfate products are used throughout the lawn care and fertilizer industry and licensed for sale in more than 40 states. Complies with AWWA Specifications

Sulfuric acid waste recycling by regenerative process ...
Sulfuric acid waste recycling by regenerative process ...

Ferrous sulfate has been researched extensively as a recovery product for waste sulfuric acid, for example, in the steel industry as pickle liquor recovery, Sulfuric Acid and Ferrous Sulfate Recovey from Waste Pickle Liquor by Thornton, W. E. in US EPA ORD Series EON-660/2-73-032 (01/00/94) and Recovery of Ferrous Sulfate and Sulfuric Acid from Spent Pickle Liquor of the Steel Industry by …

Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

pH - A term used to describe the ,acid,-base characteristics of water, typically measured by a pH meter. Specifically, the concentration of H+ ions in water. Formally, pH is the negative logarithm of the H + concentration, i.e., pH = -log [H+]. The following values indicate the classification of a water: pH < 7 refers to ,acid, …

US4705639A - Ferrous and sulfide treatment of ...
US4705639A - Ferrous and sulfide treatment of ...

This method, produces approximately one-fourth the sludge generated by the, previously known acidic reaction treatment using only ferrous sulfide. The present invention involves a …

Decolorization of printing and dyeing wastewater ...
Decolorization of printing and dyeing wastewater ...

It is to use ,ferrous sulfate,, polymeric ferric ,sulfate, and other chemical agents with adsorption effect to remove colored dyes in ,wastewater, by adsorption and precipitation. After the dye in the ,wastewater, is treated by this method, it is mixed with the sludge in the water and separated by the sludge to achieve the decolorization effect.

TECHNOLOGY PROFILE: ACID RECOVERY AND RECYCLE …
TECHNOLOGY PROFILE: ACID RECOVERY AND RECYCLE …

refrigeration, and centrifuge (screen) separation to achieve the recycle of sulfuric ,acid,. ,Ferrous sulfate, heptahydrate and copper ,sulfate, tetrahydrate crystals recovered in the process are sold as a co-product. Thousands of tons are produced each year and used in agriculture, ,wastewater, treatment, and mining.

Final Report | Metals Recycling From Waste Sludges by ...
Final Report | Metals Recycling From Waste Sludges by ...

Recovery, as their sulfates via crystallization was only one technique; it is possible that other approaches, such as precipitation as the carbonate or precipitation as the hydroxide followed by calcining, may be more economical. A mass balance of the process was prepared at a design basis of 50 wet tons per day.

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

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, …

Project Report on Water Pollution
Project Report on Water Pollution

Project Report # 7. ,Environment, of Aquatic in Water: Water quality characteristic of aquatic ,environment, arises from a multitude of physical, chemical and biological interaction. The water bodies rivers, lakes and estuaries are con­tinuously subject to a dynamic state of change with respect to their geological age and geochemical characteristics.

TECHNOLOGY PROFILE: ACID RECOVERY AND RECYCLE …
TECHNOLOGY PROFILE: ACID RECOVERY AND RECYCLE …

Ferrous sulfate, heptahydrate and copper ,sulfate, tetrahydrate crystals recovered in the process are sold as a co-product. Thousands of tons are produced each year and used in agriculture, ,wastewater, treatment, and mining. The low operating cost of an ,acid recovery, crystallizer and the value of the co-product make this

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