Welcome to the company ! we have many years of professional experience !
rsdzd@pyzyrsd.com +86 513525609655

Before and after blowout of 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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Before and after blowout of fracturing flowback fluid
Elsevier Health
Elsevier Health

We would like to show you a description here but the site won’t allow us.

Guidelines for Canadian Drinking Water Quality: Guideline ...
Guidelines for Canadian Drinking Water Quality: Guideline ...

The appropriate optimal ,pH, levels should be selected by balancing the benefits of ,improving, precursor removal with possible negative impacts on turbidity removal and the corrosion of concrete and mechanical equipment within the plant at lower ,pH, (Singer, 1999; Carlson et al., 2000; U.S. EPA, 2008), and it may be necessary to subsequently increase the ,pH,.

Characteristics of Waste-Water (Unit-I)
Characteristics of Waste-Water (Unit-I)

It is thus an indicator of the acidity or the alkalinity of sewage. If the ,pH value, is less than 7, the sewage is acidic and if the ,pH, vale is more than 7, the sewage is alkaline. • The fresh sewage is alkaline, with passed of time ,pH, tends to fall due to production ,of acid, by …

(PDF) Standard Methods For the Examination of Water and ...
(PDF) Standard Methods For the Examination of Water and ...

Standard Methods For the Examination ,of, Water ,and Wastewater,, 23nd edition, 2017

Experimental plant for the physical-chemical treatment of ...
Experimental plant for the physical-chemical treatment of ...

The effluent from the ,stripping, towers was cooled with heat recovery and then filtered through sand beds prior to the final pH ,neutralization, and discharge into the stream. Weakly contaminated groundwater ( Q = 140 m 3 h -1 ) is fed through in this final stage of filtration and ,neutralization,, giving the added benefit of reducing consumption of the neutralizing ,acid,.

Recent advances in waste water treatment through ...
Recent advances in waste water treatment through ...

15/3/2021, · Studies on the chemical oxidants (e.g., ozone (O 3), hydrogen peroxide (H 2 O 2), and persulfate (S 2 O 8 2−)) activation by TMSs-based catalysts have shown that diverse ROS can be well generated for efficient water purification in these AOPs.The extensive application of TMSs-based catalysts in Fenton-like oxidation toremove organic pollutants is presented in Table 1.

Electrodialysis for wastewater treatment—Part II ...
Electrodialysis for wastewater treatment—Part II ...

1/1/2020, · Water splitting by BMED for salt conversion into ,acid, and base has also been applied for treating ,wastewater, containing organic matter. For example, the regeneration of ammonium and sulfuric ,acid, from industrial glutamate production ,wastewater, was successfully performed, restoring the membrane properties by ,acid,–ultrasound cleaning for fouling removal [120] .

(PDF) Anaerobic Treatment of a Petrochemical Wastewater ...
(PDF) Anaerobic Treatment of a Petrochemical Wastewater ...

Sedimentation resulted in 70% TSS and 37% COD removal. UASB digesters presented comparable treatment efficiencies with rather low COD removals: the best results were 46.4% for …

Principles of Gas Absorption. | Industrial & Engineering ...
Principles of Gas Absorption. | Industrial & Engineering ...

Esterification of Acrylic ,Acid, and n-Butanol in a Pilot-Scale Reactive Distillation Column—,Experimental, Investigation, Model Validation, and Process Analysis. Industrial & Engineering Chemistry Research 2012, 51 (50) , 16444-16456. https://doi.org/10.1021/ie301934w; Xianming Zhang and Frank Wania.

(PDF) ANAEROBIC TREATMENT OF A PETROCHEMICAL …
(PDF) ANAEROBIC TREATMENT OF A PETROCHEMICAL …

All these altematives would have to be studied at laboratory scale to determine if ,neutralization, of PTA ,wastewater, for anaerobic treatment can be realized at an economical leveL Effluent recycle and CO2 ,stripping, were also retained in Amoco patent (Ely and Olsen. 1989) to decrease caustic soda requirements for aromatic acids dissolution.

Experimental Study on Treatment of High‐concentrated ...
Experimental Study on Treatment of High‐concentrated ...

However, the existing oxidation processes usually have low efficiency, the ,neutralization, and gas ,stripping, methods may cause secondary pollution due to the generation of SO 2 , SO 3 , and H 2 S ...

Principles of Gas Absorption. | Industrial & Engineering ...
Principles of Gas Absorption. | Industrial & Engineering ...

Esterification of Acrylic ,Acid, and n-Butanol in a Pilot-Scale Reactive Distillation Column—,Experimental, Investigation, Model Validation, and Process Analysis. Industrial & Engineering Chemistry Research 2012, 51 (50) , 16444-16456. https://doi.org/10.1021/ie301934w; Xianming Zhang and Frank Wania.

12.5: High-Performance Liquid Chromatography - Chemistry ...
12.5: High-Performance Liquid Chromatography - Chemistry ...

Taking advantage of a secondary equilibrium reaction is a useful strategy for ,improving, a separation. 13 Figure 12.17, which we considered earlier in this chapter, shows the reversed-phase separation of four weak acids—benzoic ,acid,, terephthalic ,acid,, p-aminobenzoic ,acid,, and p-hydroxybenzoic ,acid,—on a nonpolar C 18 column using a aqueous mobile phase that includes a buffer of acetic ,acid, ...

Recent advances and prospects of catalytic advanced ...
Recent advances and prospects of catalytic advanced ...

Some of the factors influencing the applicability of Fenton process for real industrial ,wastewater, include high chemical consumption (up to 50–80 ppm of Fe ions in solution), pH dependence (effective in the range of pH 2–4), high cost of H 2 O 2, generation of Fe sludge, necessity of post-treatment, necessity ,of neutralization, of the treated sample before disposal, and decomposition of H 2 ...

Solvent Extraction of Wastewaters from Acetic-Acid Manufacture
Solvent Extraction of Wastewaters from Acetic-Acid Manufacture

There are several disadvantages to this approach. First, the cost of the base is excessive. For NaOH, the cost would be $12.9/m ,wastewater,, assuming 5 wt.% ,acid, in the ,wastewater, feed and a cost of $0.19/kg for 50% aqueous NaOH (Chem. Market. Rep., 1978).

In-situ Cu-doped carbon-supported catalysts applied for ...
In-situ Cu-doped carbon-supported catalysts applied for ...

1. Introduction. High-salinity organic ,wastewater,, such as polycarbonate plant ,wastewater, (PCW), characterized by refractory organics and high content of soluble salts, is produced by the industrial process with rapid growth of industrial activities development , , .Bisphenol A (BPA) is applied widely in plastic industry as an intermediate for the manufacturing of polycarbonate , which ...

Solvent Extraction of Wastewaters from Acetic-Acid Manufacture
Solvent Extraction of Wastewaters from Acetic-Acid Manufacture

There are several disadvantages to this approach. First, the cost of the base is excessive. For NaOH, the cost would be $12.9/m ,wastewater,, assuming 5 wt.% ,acid, in the ,wastewater, feed and a cost of $0.19/kg for 50% aqueous NaOH (Chem. Market. Rep., 1978).

Experimental and model studies of p–nitrophenol and phenol ...
Experimental and model studies of p–nitrophenol and phenol ...

10/8/2018, · The pseudo-thermodynamic network analysis was applied to simulate the solution–diffusion transport of phenol (PH) and p–nitrophenol (PNP) with a fast ,neutralization, reaction in the ,stripping, solution. The comparison of the ,experimental, results in the system: PH, PNP aq. soln. (pH = 2)|cyclohexane|NaOH soln. (pH = 10) with the results of ...

Masstransferenhancementinthemembranearomaticrecoverysystem ...
Masstransferenhancementinthemembranearomaticrecoverysystem ...

organic acids and bases from ,wastewater, streams using a nonporous silicone rubber membrane (permeable to neutral organic compounds, but not to ionic species). The MARS process comprises two stages: in the first, the extraction stage, the neutral organic diffuses from the ,wastewater, solu-tion across the membrane into a ,stripping, solution, where it

7 NEUTRALIZATION TECHNOLOGY FOR MUSTARD AGENT HD | …
7 NEUTRALIZATION TECHNOLOGY FOR MUSTARD AGENT HD | …

HD is added to the reactor over a period of one hour to minimize the quantity of unreacted agent in the reactor at any given time. The reaction completely destroys the HD and is 90 percent selective to formation of thiodiglycol. During the ,neutralization, reaction, 2 wt pct of hydrochloric ,acid, is produced, resulting in acidic reaction conditions.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City