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Treatment of gas well fracturing flowback fluid

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 gas well fracturing flowback fluid
Chemical Stability of Acid Rock Drainage Treatment Sludge ...
Chemical Stability of Acid Rock Drainage Treatment Sludge ...

To assess the chemical stability of sludges generated by neutralizing ,acid, rock drainage (ARD) with alkaline reagents, synthetic ARD was treated ,with hydrated lime, (batch and high-density sludge process), limestone, and two proprietary reagents (KB-1 and Bauxsol). The amorphous metal hydroxide sludge produced was leached using deionized water, U.S. EPA methods (toxicity characteristic leaching ...

Design Manual Neutralization Of Acid Mine Drainage
Design Manual Neutralization Of Acid Mine Drainage

----- FIGURES Number Page 1-1 Theoretical Solubilities of Selected Ions 6 2-1 Process Flow Sheet for Treatment ,of Acid, Mine Drainage 8 2-2 Conventional ,Lime Neutralization, Process 9 2-3 High-Density Sludge Treatment Process 11 3-1 Typical Quicklime and Slaker Installation 18 3-2 ,Hydrated Lime, and Slurry Installation 19 3-3 Standard and Offset Hopper Bottoms 21 3-4 ,Lime, Feeders 25 3-5 ...

Zero-Liquid Discharge Treatment of Wastewater from a ...
Zero-Liquid Discharge Treatment of Wastewater from a ...

NaCl, KOH, NaOH and ,hydrated lime, as precipitating agents in the treatment of ,wastewater, from the fertilizer industry containing phosphate and fluoride ions, the latter in the HF and H2SiF6 forms in a wide range of pH, from 1.5 up to 12. Sodium chloride was chosen as a reagent for the ,neutralization, of hexafluorosilicic ,acid, with

COAGULATION TREATMENT OF WASTEWATER IN PETROLEUM …
COAGULATION TREATMENT OF WASTEWATER IN PETROLEUM …

dyes. Coagulation or flocculation process was conducted for the treatment of industrial ,wastewater, to achieve maximum removal of COD, TP and TSS[3]. Aluminum ,sulfate, (alum), ,ferrous sulfate,, ferric chloride and ferric chloro-,sulfate, were commonly used as coagulants [4].

Hydrated Lime in Jeddah Hydrated Limestone in Jeddah ...
Hydrated Lime in Jeddah Hydrated Limestone in Jeddah ...

8. In the tanning industry for ,neutralization of acid,, the liming of hides and skins and the flocculation of ,wastewater, 9. In the petroleum refining industry for the manufacture of additives to oils (salicatic, sulphatic, fenatic) 10. In the chemical industry for manufacture of calcium stearate 11.

Removing Heavy Metals From Wastewater
Removing Heavy Metals From Wastewater

The goal of the rapid mix operation is to first raise the ,wastewater, pH to form metal hydroxide particles, as discussed above. After the addition of caustic, the next step is to add aluminum or iron salts, or organic polymers (coagulants) directly to the ,wastewater,. These polymers attach to …

Waste disposal methods for hydrofluoric acid
Waste disposal methods for hydrofluoric acid

18/3/2011, · 2000. Yes. It's treated with calcium chloride and ,lime,, for ,neutralization, and fluoride removal. You dose with about 1/2 ounce per gallon of calcium chloride, then add ,hydrated lime, [affil. link to info/product on Amazon] to a pH of about 9. Then, floc out the solids with an anionic polymer.

Implementation of a High Density Sludge 'HDS' Treatment ...
Implementation of a High Density Sludge 'HDS' Treatment ...

can be treated for the ,neutralization, of acidity, precipitation of heavy metals and removal of S0 4 using ,lime neutralization, (Kuyucak, 1995 and 1998). ,Lime, is used as either quicklime (CaO) or ,hydrated lime, (Ca(OH) 2). The ,lime, treatment ,of acid, mine water is presented by the following equation, where metal

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

Pyrite + Oxygen + Water →, Ferrous Sulfate, + Sulfur,ic Acid., The, acid, mine drainage waste is characterized by red, water,. The simplest treatment is neutralization and clarification. The ideal neutralization first combines one of the reactants with previously precipitated solids. This blend is then mixed with the other reactant.

TREATMENT BLENDS FOR REMOVING METALS FROM …
TREATMENT BLENDS FOR REMOVING METALS FROM …

Another aspect of an embodiment of the present invention is directed toward a method of preparing a pretreatment blend comprising steps of:, adding water, to a mixing tank with a mixer, mixing the, ferrous sulfate, heptahydrate into the, water, adding, the aluminum sulfate,, adding, 85% phosphoric acid, and a, adding, coagulant.

Removal of tetracycline hydrochloride from wastewater by ...
Removal of tetracycline hydrochloride from wastewater by ...

benzenetricarboxylic acid dissolved in 10 mL of ethanol, with 2.8046 g of Ferro,us sulfate, heptahydrate and 2.6 mL of zirco-nium acetate dissolved in distilled water, and stirring the solutionfor 30min.Next, the preparedsolutionwastransferred to a 50 mL reactor and reacted at 120 C for 10 h. Once the

What is Ferric Sulphate and How is It Prepared? (with ...
What is Ferric Sulphate and How is It Prepared? (with ...

30/1/2021, · It is made by treating ,ferrous sulfate, with an oxidizing agent. Ferric sulphate may be utilized in the production of clean drinking water. The chemical compound is written out as Fe2(SO4)3, which means it contains a total of three naturally occurring chemical elements.

Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...
Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...

W.K. Merriman and ,Lime, Slurry for AMD / mine water treatment: In 2006, there was a need for high quality, low-cost alkalis in the coal industry and began supplying manufactured ,Lime, Slurry (Calcium Hydroxide) to both abandoned and active mine sites for pH adjustment and metals removal.

COAGULATION AND FLOCCULATION TREATMENT OF …
COAGULATION AND FLOCCULATION TREATMENT OF …

Aluminum ,sulfate, (alum), ,ferrous sulfate,, ferric chloride and ferric chloro-,sulfate, were commonly used as coagulants. However, a possible link of Alzheimer’s disease with conventional aluminium based coagulants has become an issue in ,wastewater, treatment. Hence, special attention has shift towards using biodegradable polymer,

Removal of arsenic from acid wastewater via sulfide ...
Removal of arsenic from acid wastewater via sulfide ...

1/11/2019, · To achieve a safe treatment of arsenic-containing ,acid wastewater,, a new process was proposed, including arsenic removal via sulfide precipitation and hydrothermal mineralization stabilization. Under optimal conditions of sulfide precipitation, 99.65% of arsenic from ,wastewater, was precipitated in the form of amorphous As 2 S 3.

Wastewater treatment using ferrous sulfate (Journal ...
Wastewater treatment using ferrous sulfate (Journal ...

During industrial tests of the purification of wastewater with ferrous sulfate, we also investigated the resulting sludge. The use of ferrous sulfate causes a significant increase in its quantity (by a factor, of, 1.5 to 1.8) and in its oil content (by a factor of 2 to 2.5). The water content in the, sludge, decreases.

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