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

fracturing flow-back fluids reinjection

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.

fracturing flow-back fluids reinjection
Recovery/removal of metallic elements from waste water ...
Recovery/removal of metallic elements from waste water ...

Because acidic ,wastewater,, including ,acid, mine drainage, discolors streams, damages ecological systems, and harms wildlife, federal and state limits for ,waste-water, effluent require that the discharge pH be between 6 and 9, and that the concentration of common metallic ,elements, such as iron and manganese be less than 2 milligrams per liter (mg/L) [cf. U.S. Environmental Protection Agency, 1994].

Removal of Fluorine from Wet-Process Phosphoric Acid Using ...
Removal of Fluorine from Wet-Process Phosphoric Acid Using ...

The deep ,removal, of ,fluorine from wet-process phosphoric acid, is currently a very serious issue. In this paper, an efficient liquid–liquid separation method based on a bubble membrane was developed to solve this problem. Tributyl phosphate (TBP) …

ChemEngineering | Free Full-Text | Removal of the ...
ChemEngineering | Free Full-Text | Removal of the ...

The combined chemical and biological treatment of this ,wastewater, in the bioreactors with hematite iron ore removed up to 70% of TOC. About 20% of TOC was removed quickly by adsorption on iron ore particles, but adsorption/precipitation of others up to 50% of TOC was due to ferrous/,ferric, ions and hydroxides produced during microbial reduction and dissolution of iron ore.

Technologies for Recovering Nutrients from Wastewater: A ...
Technologies for Recovering Nutrients from Wastewater: A ...

9/5/2019, · Therefore, conventional ,wastewater, treatment processes are focused principally on ,removal, of nitrogen from ,wastewater,, most commonly by biological nitrification and denitrification. Newly developed processes, such as Anammox, can convert ammonia and nitrite to nitrogen gas directly under anaerobic conditions (Jetten et al. , 1998 ).

Phosphorus removal and recovery from wastewater via hybrid ...
Phosphorus removal and recovery from wastewater via hybrid ...

21/1/2021, · Phosphorus ,removal, and recovery from ,wastewater, via hybrid ion exchange nanotechnology: a study on sustainable regeneration chemistries

Journal of Water Process Engineering
Journal of Water Process Engineering

mud), five cycles of heavy metals ,removal, could be done. Besides, it is an important research direction to treat sewage by the coagulant pre-pared from modified red mud, such as aluminum ,ferric, silicate floccu-lant and polyaluminium ,ferric, chloride flocculant [18–22]. Fly ash is a solid waste obtained by filtering, deposition, and col-

Recovery/removal of metallic elements from waste water ...
Recovery/removal of metallic elements from waste water ...

Because acidic ,wastewater,, including ,acid, mine drainage, discolors streams, damages ecological systems, and harms wildlife, federal and state limits for ,waste-water, effluent require that the discharge pH be between 6 and 9, and that the concentration of common metallic ,elements, such as iron and manganese be less than 2 milligrams per liter (mg/L) [cf. U.S. Environmental Protection Agency, 1994].

William Abraham Tarpeh's Profile | Stanford Profiles
William Abraham Tarpeh's Profile | Stanford Profiles

Trace, organics (0.1 μg L-1) and ,elements, (30 μg L-1) were not detected at appreciable levels in the ,ammonium sulfate, fertilizer product. This novel approach holds promise for selective recovery of nitrogen from concentrated liquid waste streams such as source-separated urine.

Dissolved Selenium(VI) Removal by Zero-Valent Iron under ...
Dissolved Selenium(VI) Removal by Zero-Valent Iron under ...

Removal, of >90% Se(VI) was achieved in 4 h (PM) to 8 h (QMP) in the absence of SO 4 2– and NO 3 – (Figure 2a). The ,removal, rates decreased approximately 10 times in the presence of SO 4 2– (1800 mg L –1), with 90% Se(VI) ,removal, observed in 50 h …

Experimental Research on the Preparation Process and ...
Experimental Research on the Preparation Process and ...

These processes with FeSO4 as an absorbent,NaClO3 as an oxidant and SO2 in flue gases as raw material to synthesize flocculent agent PFS in the packed absorption column were investigated.The oxidation experiment showed that the production of consistent with national standard polymeric ,ferric sulfate,(PFS) under the precondition of high SO2 ,removal, efficiency is feasible.To do the research of ...

Experimental Research on the Preparation Process and ...
Experimental Research on the Preparation Process and ...

These processes with FeSO4 as an absorbent,NaClO3 as an oxidant and SO2 in flue gases as raw material to synthesize flocculent agent PFS in the packed absorption column were investigated.The oxidation experiment showed that the production of consistent with national standard polymeric ,ferric sulfate,(PFS) under the precondition of high SO2 ,removal, efficiency is feasible.To do the …

ChemEngineering | Free Full-Text | Removal of the ...
ChemEngineering | Free Full-Text | Removal of the ...

The combined chemical and biological treatment of this ,wastewater, in the bioreactors with hematite iron ore removed up to 70% of TOC. About 20% of TOC was removed quickly by adsorption on iron ore particles, but adsorption/precipitation of others up to 50% of TOC was due to ferrous/,ferric, ions and hydroxides produced during microbial reduction and dissolution of iron ore.

Waste Water Treatment
Waste Water Treatment

These oxidizing agents make waterreusable by hampering the biological growth process of bacteria which happensto be the main cause of decomposition of water. NeutralizationWhen it comes to industrial ,wastewater treatment,, a chemical process known asNeutralization is quite common.This process involves adding ,acid, or base to the water to adjust its pH value andbring it back to neutral level ...

Phosphorus removal and recovery from wastewater via hybrid ...
Phosphorus removal and recovery from wastewater via hybrid ...

21/1/2021, · Phosphorus ,removal, and recovery from ,wastewater, via hybrid ion exchange nanotechnology: a study on sustainable regeneration chemistries

Removal of selenium from water by complexation with ...
Removal of selenium from water by complexation with ...

The prior art has suggested the ,removal, of Selenium in two common methods. One, ,Ferric, coprecipitation, involves the addition of a ,ferric, salt, typically ,ferric, chloride or ,sulfate, to the ,waste water,. Adjustment of pH precipitates the iron as ,ferric, hydroxide. Selenite is strongly adsorbed on the ,ferric, hydroxide floe.

Recovery/removal of metallic elements from waste water ...
Recovery/removal of metallic elements from waste water ...

Because acidic ,wastewater,, including ,acid, mine drainage, discolors streams, damages ecological systems, and harms wildlife, federal and state limits for ,waste-water, effluent require that the discharge pH be between 6 and 9, and that the concentration of common metallic ,elements, such as iron and manganese be less than 2 milligrams per liter (mg/L) [cf. U.S. Environmental …

Sequestration and Transformation in Chemically Enhanced ...
Sequestration and Transformation in Chemically Enhanced ...

For coagulation selection and optimization, jar test are often performed and in laboratory DOC ,removal, studies, ,ferric sulfate, was shown to outperform PAC (Mourad 2008; Henneberry 2012). Laboratory studies subjecting flocs to varying pH and redox conditions to simulate field conditions indicated both types of flocs to be equally resilient and no DOC was observed to be released ( Henneberry 2012 ).

Removal of selenium from water by complexation with ...
Removal of selenium from water by complexation with ...

The prior art has suggested the removal of Selenium in two common methods. One, Ferric coprecipitation, involves the addition of a ferric salt, typically ferric chloride or sulfate to the waste water. Adjustment of pH precipitates the iron as ferric hydroxide. Selenite is …

Removal of silver and antimony radionuclides from low ...
Removal of silver and antimony radionuclides from low ...

Suitable reagent(s) and the optimum doses were to be investigated for the treatment and conditioning of the ,wastewater,. Different scavenging agents like ,ferric, chloride, ferrous ,sulfate,, stannous chloride, in situ precipitated manganese hydroxide and lanthanum nitrate were studied for the ,removal, …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City