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fracturing flow-back fluids treatment definition biology

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 flow-back fluids treatment definition biology
US5427691A - Lime neutralization process for treating ...
US5427691A - Lime neutralization process for treating ...

This invention is intended as, a, method for treating, acidic wastewaters containing, heavy metals and sulphate, such as, acid mine drainages, (AMD), where, a, lime slurry (CaO), containing a, specified...

WO2002079100A1 - Acidic-wastewater treating material and ...
WO2002079100A1 - Acidic-wastewater treating material and ...

A method, of treating an, acidic wastewater, containing sulfate ions, and, iron ions, especially a wastewater from a pit;, and a, solid wastewater-treating material for, use, in the, method., The...

Chemical Stability of Acid Rock Drainage Treatment Sludge ...
Chemical Stability of Acid Rock Drainage Treatment Sludge ...

the final pH of the leachate. A higher neutralization potential (e.g., a greater content of unreacted neutralizing agent) makes sludges inherently more chemically stable. Thus, when ARD or any acidic metalliferous wastewater is treated, a choice must be made between efficient reagent use and resistance to acid attack. Introduction

Chemical Stability of Acid Rock Drainage Treatment Sludge ...
Chemical Stability of Acid Rock Drainage Treatment Sludge ...

the final pH of the leachate. A higher ,neutralization, potential (e.g., a greater content of unreacted neutralizing agent) makes sludges inherently more chemically stable. Thus, when ARD or any acidic metalliferous ,wastewater, is treated, a choice must be made between efficient ,reagent, use and resistance to ,acid, attack. Introduction

Brief Analysis of the Main Treatment Methods of Phosphoric ...
Brief Analysis of the Main Treatment Methods of Phosphoric ...

The larger the equilibrium constant is, the more stable the precipitate is, the better the precipitation effect is, the more thorough the dephosphorization is, the better the solid-liquid separation effect is, and the treatment of phosphorus-containing ,wastewater, is up to the standard, P < 0.5mg/L. ,Adding, lime can improve the pH value of ,wastewater, and remove phosphorus, at the same time, the ...

Control of pH & Alkalinity | IER Wastewater Treatment ...
Control of pH & Alkalinity | IER Wastewater Treatment ...

The ability to strongly buffer ,wastewater, within a desired pH range as it undergoes ,treatment, is crucial to maintaining optimal conditions for microbiological activity and reliable ,wastewater treatment, performance. Alkalinity is what provides strong pH buffering, which is why it is so important for the ,wastewater treatment, industry.

Wastewater Treatment for Food Manufacturer - Natural ...
Wastewater Treatment for Food Manufacturer - Natural ...

An equalization tank was installed, in addition to automated systems for addition of lime and ,acid, for pH, polymer for coagulation, urea for nitrogen and ,soda ash, for alkalinity. Also, pump stations were added and existing ones were upgraded.

(PDF) The Effect of Neutralization Method and Reagent on ...
(PDF) The Effect of Neutralization Method and Reagent on ...

Neutralisation of, Acid Rock Drainage (ARD), by adding an, alkaline reagent, produces sludges generally dominated by amorphous ferrihydrite, often with high levels of adsorbed heavy metals. The effect...

INDUSTRIAL WASTEWATER TREATMENT IN DAIRY INDUSTRY
INDUSTRIAL WASTEWATER TREATMENT IN DAIRY INDUSTRY

I 1.00 Sulfuric ,acid, 375 250 8 6.7 6 II 1.00 ,Soda ash, 37.5 250 8 10 6 III-a 1.50 ,Soda ash, 37.5 250 8 10 6 III-b 1.50 ,Soda ash, 37.5 250 8 10 5 III-c 1.50 ,Soda ash, 37.5 250 8 10 4 RESULTS & DISCUSSIONS The applied three operation scenarios were made during the study period on three weeks for each of first and

Lime neutralization process for treating acidic waters ...
Lime neutralization process for treating acidic waters ...

This invention is intended as a method for treating acidic wastewaters containing heavy metals and sulphate, such as, acid mine drainages, (AMD), where, a lime slurry (CaO) containing a specified amount of recycled sludge, is added to, the water, as a neutralizing reagent. The neutralization is performed in two stages; the pH of the water is raised to 4-4.5 in a first reactor 10 using recycled sludge and, if …

(PDF) Flow Equalization and Neutralization
(PDF) Flow Equalization and Neutralization

Flow equalization, and, chemical neutralization, and are two important components of water and wastewater treatment. Chemical neutralization is employed to balance the excess acidity or alkalinity in...

Achieving sustainable dairy wastewater management with ...
Achieving sustainable dairy wastewater management with ...

By replacing the sodium in caustic ,soda, or ,soda ash, with the magnesium ion, the treated ,wastewater, is transformed from having to deal with a detrimental form of salinity (Na+) to the benefit of a macronutrient (‎Mg +2). ‎Mg +2 is the core element in chlorophyll that drives photosynthesis in plant leaves… you can’t get greener than that!

Current legislation and methods of treatment of wastewater ...
Current legislation and methods of treatment of wastewater ...

1/1/2018, · The most commonly used chemical for neutralization of acidic e-wastewater neutralization is 50% sodium hydroxide. On the other hand, quicklime and hydrated lime offer some advantages: Cost less than sodium hydroxide;

(PDF) Acid Mine Drainage (AMD): causes treatment and case ...
(PDF) Acid Mine Drainage (AMD): causes treatment and case ...

Groundwater neutralized with lime or passive treatment Lime ,neutralization,/precipitation, referred to in systems, which rely on natural geochemical and bi- mining circles as the ‘‘chemical process’’, ,is often used, ological processes for ,acid neutralization, and precip- to treat AMD in the mining industry [13,14].

Utilizing the supernatant of waste sulfuric acid after ...
Utilizing the supernatant of waste sulfuric acid after ...

1/4/2018, · Therefore, in this study, we proposed the use of, dolomite powder, to neutralize the acid wastewater in order to improve the sanitary conditions of the processing. As dolomite contains calcium carbonate and magnesium carbonate, micro-soluble calcium sulphuric and soluble magnesium sulphuric can be formed in the neutralization reaction process.

treating plating wastewater - Wastewater Treatment Made ...
treating plating wastewater - Wastewater Treatment Made ...

The hydroxide precipitation ,treatment, employs alkaline materials such as caustic ,soda,, ,soda ash,, lime, magnesium hydroxide or a combination thereof. The entire ,treatment, involves precipitation of heavy metal hydroxide(s), flocculation with a polymeric material, settling and discharge of treated effluent.

Evaluation of Kitchen Wastewater with Additives
Evaluation of Kitchen Wastewater with Additives

Same ,method, was applied for measuring hardness. Calcium and magnesium indicator, alkali and one drop of EDTA (Ethylenediaminetetraacetic ,acid,) and EGTA (Aminopolycarboxylic ,acid,) were ,used, as the ,reagent, and carbonate hardness were determined using colorimeter. Gravimetric ,method, was selected for determination of solid contents.

Characteristics of odors emitted from municipal wastewater ...
Characteristics of odors emitted from municipal wastewater ...

1/11/2016, · The article presents basic information on the characteristics of odors from ,wastewater, treatment lines and ,wastewater, processing and management lines in a model biological ,wastewater, treatment plant conducting the biogas recovery process and also information is provided on deodorization methods, such as odor masking, biofiltration, thermal disposal and diffusion through activated sludge dedicated to ,neutralization, …

DNA Purification | DNA Extraction Methods | Promega
DNA Purification | DNA Extraction Methods | Promega

Rapid ,neutralization, with a high-salt buffer such as potassium acetate in the presence of SDS has two effects that contribute to the overall effectiveness of the ,method,. First, rapid ,neutralization, causes the chromosomal DNA to base-pair in an intrastrand manner, forming an insoluble aggregate that precipitates out of solution.

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Chemicals such as limestone, hydrated lime, ,soda ash, and caustic ,soda, are all discussed in relation to their use and function during the treatments. The web page also allows the costs of various ,treatment, methods to be compared for treating different types and acidities ,of acid, drainage.

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