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

Fracturing fluid backflow proppant backflow

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 fluid backflow proppant backflow
Removal of hexavalent chromium from electroplating ...
Removal of hexavalent chromium from electroplating ...

15/4/2016, · In general, the treatment of galvanic, wastewaters containing hexavalent chromium, involves the following steps , , : (i) reduction of Cr(VI) to Cr(III) under acidic conditions (pH between 2 and 3) through the addition of ferric chloride (FeCl 2), sodium sulfide (Na 2 S) or sodium bisulfite (NaHSO 3); (ii) oxidation of Fe(II) to Fe(III) with H 2 O 2, (iii) precipitation of metals through the addition of hydroxides …

Removal of hexavalent chromium from wastewater by acid ...
Removal of hexavalent chromium from wastewater by acid ...

This paper deals with the ,treatment, of ,hexavalent chromium, (Cr(VI)) and its removal mechanism using ,acid,-washed zero-valent aluminum (ZVAl). The ,acid,-washed ZVAl before and after reaction was characterized by scanning electron microscope, X-ray diffraction, and X-ray photoelectron spectroscopy. The influence factors such as ZVAl loading, ,acid, washing time, and pH values on Cr(VI) removal were...

Recent bioreduction of hexavalent chromium in wastewater ...
Recent bioreduction of hexavalent chromium in wastewater ...

25/11/2017, · ,Hexavalent chromium, Cr(VI) is an important water pollutant. Even at Cr(VI) levels measuring in the parts per billion (ppb), research has shown it to be toxic [6] . Cr(VI) can originate from different anthropogenic activities such as chromite mining, leather tanning, pigment synthesis, electroplating and metal finishing.

Co-benefits Project On Wastewater treatment For Fish ...
Co-benefits Project On Wastewater treatment For Fish ...

(2)highlydensity organic ,wastewater, (COD:60,000mg/L) and(3)High SS and oil and grease. ,Wastewater, treatment is necessary to be strong to shock load of amount of ,wastewater,, and be able to ,reduce, organic mater, SS and oil and grease.

Removal of hexavalent chromium from wastewater by acid ...
Removal of hexavalent chromium from wastewater by acid ...

(2016). Removal of ,hexavalent chromium, from ,wastewater, by ,acid,-washed zero-valent aluminum. Desalination and Water Treatment: Vol. 57, No. 12, pp. 5592-5600.

Frontiers | Co-digestion of Wastewater-Grown Filamentous ...
Frontiers | Co-digestion of Wastewater-Grown Filamentous ...

Wastewater, algal treatment systems show improved economic viability and enhanced energy return on investment if integrated with biofuel production. One option is to anaerobically digest the algae to generate bio-methane. This method is appropriate for relatively low lipid filamentous algae typical of turf scrubbers®. However, an unbalanced algal biomass composition (e.g. carbon-to-nitrogen ...

(PDF) Novel Passive Co-Treatment of Acid Mine Drainage and ...
(PDF) Novel Passive Co-Treatment of Acid Mine Drainage and ...

TECHNICAL TECHNICAL REPORTS: WASTE MANAGEMENT REPORTS Novel Passive ,Co,-Treatment of ,Acid Mine Drainage and Municipal Wastewater, William H. J. Strosnider,* Brandon K. Winfrey, and Robert W. Nairn A laboratory-scale, four-stage continuous-flow reactor system was constructed to test the viability of high-strength ,acid, mine ,A cid, mine drainage (AMD) and municipal ,wastewater, (MWW) …

Peracetic Acid Wastewater Disinfection - Enviro Tech ...
Peracetic Acid Wastewater Disinfection - Enviro Tech ...

By developing and offering alternative chemistries, such as Peragreen WW peracetic ,acid, (PAA), we are decreasing the disinfection cost of ,wastewater, and ensuring that critical water quality requirements are being met. PERAGREEN WW WILL: ,Reduce, bacteria in your ,wastewater, system to meet permitted requirements with less chemical, in less time.

DOWEX Ion Exchange Resins - DuPont
DOWEX Ion Exchange Resins - DuPont

reduce, the sodium content of the water and enable environmentally safe discharge. Introduction Water is typically a ,co,-product of natural gas production. When natural gas is produced from certain coal bed methane fields in the Powder River Basin of Wyoming, the water is very high in sodium.

Removal of hexavalent chromium from wastewater by acid ...
Removal of hexavalent chromium from wastewater by acid ...

(2016). Removal of ,hexavalent chromium, from ,wastewater, by ,acid,-washed zero-valent aluminum. Desalination and Water ,Treatment,: Vol. 57, No. 12, pp. 5592-5600.

Carbon Footprint Analyses of Wastewater Treatment Systems ...
Carbon Footprint Analyses of Wastewater Treatment Systems ...

3.2.1. Estimation of CH 4 and ,CO, 2 Emissions from ,Wastewater,. In ,wastewater, treatment process all organic carbon removed from the ,wastewater, is converted to ,CO, 2, CH 4, or new biomass. Aerobic ,wastewater, treatment systems produce primarily ,CO, 2 during the process of ,wastewater, treatment, whereas in anaerobic systems a mixture of CH 4 and ,CO, 2 is

Rapid removal of ammonium from domestic wastewater using ...
Rapid removal of ammonium from domestic wastewater using ...

13/2/2018, · This allows for practical ammonium recovery using available technologies for concentrated ,wastewater, streams 14. To further ,reduce, ... ,co,-BCAm ) hydrogels for ... ,wastewater, by polyacrylic ,acid, ...

Industrial Wastewater Treatment Using Phycoremediation ...
Industrial Wastewater Treatment Using Phycoremediation ...

The pH of the ,wastewater, increases during the growth of algae in ,wastewater, due to ,CO, 2 fixation. There is no need to added caustic soda or lime to correct the pH in areas where the pH is very low. Amongst different methods of carbon capture, algae-based carbon capture method is the best method to capture the emission of ,CO, 2 from the atmosphere [ 22 ].

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Coagulation is also important in several ,wastewater, treatment operations. A common example is chemical phosphorus removal and another, in overloaded wastewatertreatment plants, is the practice of chemically enhancing primary treatment to ,reduce, suspended solids and organic loads from primary clarifiers. The Coagulants

Acid-assisted Recycling of Fe(OH)3 Sludge as Coagulant for ...
Acid-assisted Recycling of Fe(OH)3 Sludge as Coagulant for ...

acid,-recovered coagulant for phosphorus (P) removal from ,wastewater, [12]. They reported that P removal using ,acid,-recovered coagulant was 88% of using fresh ferrous sulphate as a coagulant. They also concluded that the reuse of ,acid,-recovered coagulant can ,reduce, the 20-year whole life cost (WLC) by almost 50% in comparison to the

Recent bioreduction of hexavalent chromium in wastewater ...
Recent bioreduction of hexavalent chromium in wastewater ...

25/11/2017, · ,Hexavalent chromium, Cr(VI) is an important water pollutant. Even at Cr(VI) levels measuring in the parts per billion (ppb), research has shown it to be toxic [6] . Cr(VI) can originate from different anthropogenic activities such as chromite mining, leather tanning, pigment synthesis, electroplating and metal finishing.

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City