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

shale gas fracturing flow-back fluids separation

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.

shale gas fracturing flow-back fluids separation
Method 352.1: Nitrogen Nitrate (Colorimetric Brucine) by ...
Method 352.1: Nitrogen Nitrate (Colorimetric Brucine) by ...

6.6 Potassium ,nitrate, standard solution: 1.0 mL = 0.001 mg NO 3-N. Dilute 10.0 mL of the stock solution (6.5) to 1 liter in a volumetric flask. This standard solution should be prepared fresh weekly. 6.7 Acetic ,acid, (1 + 3): Dilute 1 volume glacial acetic ,acid, (CH 3COOH) with 3 volumes of distilled water.

Treatment of wastewater containing Silver Nitrate
Treatment of wastewater containing Silver Nitrate

Basically it is silver ,nitrate,, nitric ,acid, and deionized water. Can I let the silver settle, decant the water and adjust the pH to 7.0 and dump the water? The Silver waste will be put into a …

Exploration and verification of the feasibility of sulfide ...
Exploration and verification of the feasibility of sulfide ...

1/4/2021, · In this study, a SPDA process was established in a UASB reactor fed with synthetic ,wastewater containing nitrate,, ammonium and sulfide. This new sulfur cycle-associated anammox reaction was operated for 392 days and achieved a TN removal rate and efficiency of approximately 0.29 kgN/(m³•d) and 80%, respectively, thus proving the feasibility of this long-term application.

Wastewater | Chesapeake Bay Program
Wastewater | Chesapeake Bay Program

The process by which ammonia is oxidized into nitric ,acid, or another ,nitrate, or nitrite. Biological nitrification is a key step in the removal of nitrogen from ,wastewater,. Nutrient removal technology (NRT)

The Nitrogen Cycle - How Ammonia and Nitrite are ...
The Nitrogen Cycle - How Ammonia and Nitrite are ...

In natural or aquaculture pondsand lakes, this condition is found only in the sludge, but in ,wastewater,,the condition can be created by adding ,nitrate, to collection systems, anaerobiclagoons etc., or is created by addition of ,wastewater, that formerly containedammonia, following nitrification, as described above.

IS 3025-1 (1987): Methods of sampling and test (physical ...
IS 3025-1 (1987): Methods of sampling and test (physical ...

Itshould be noted that detergents, possibly ,containing, phosphates, cannot be used if phos­ phates o~surface.acti~e.agents are to be determined, nor can chromic ,acid,-sulphuric ,acid, mixture be used .ftrace quantities of sulphate and chromium are to be determined. Polyethylene containers, in general, should be cleaned by filling with 1 m~1/1 ...

Nitric acid - Wikipedia
Nitric acid - Wikipedia

Nitric acid, (H NO 3), also known as aqua fortis (Latin for "strong water") and spirit of niter, is a highly corrosive mineral ,acid,.. The pure compound is colorless, but older samples tend to acquire a yellow cast due to decomposition into oxides of nitrogen and water. Most commercially available ,nitric acid, has a concentration of 68% in water.

Biological nitrate removal in industrial wastewater ...
Biological nitrate removal in industrial wastewater ...

Denitrification and neutralization treatment by direct feeding of an acidic ,wastewater containing, copper ion and high-strength ,nitrate, to a bio-electrochemical reactor process Watanabe, T; Motoyama, H; Kuroda, …

Nitrate - Wikipedia
Nitrate - Wikipedia

Nitrate, is a polyatomic ion with the chemical formula NO − 3. Salts ,containing, this ion are called nitrates.Nitrates are common components of fertilizers and explosives. Almost all inorganic nitrates are soluble in water.An example of an insoluble ,nitrate, is Bismuth oxynitrate

Lesson 8: Nitrification and Denitrification
Lesson 8: Nitrification and Denitrification

Nitrate is regarded as an undesirable substance in public water. Although it occurs naturally in water, elevated levels of nitrate in groundwater usually result from human activities, such as over use of chemical fertilizers in agriculture and improper disposal of human and animal wastes.

Benzalkonium Chlorides: Uses Regulatory Status and ...
Benzalkonium Chlorides: Uses Regulatory Status and ...

Benzalkonium chlorides (BACs) are chemicals with widespread applications due to their broad-spectrum antimicrobial properties against bacteria, fungi, and viruses. This review provides an overview of the market for BACs, as well as regulatory measures and available data on safety, toxicity, and environmental contamination. We focus on the effect of frequent exposure of microbial communities to ...

Biological Nutrient Removal manual
Biological Nutrient Removal manual

An essential nutrient that is often present in ,wastewater, as ammonia, nitrite, ,nitrate,, and organic nitrogen. The sum of these is expressed as Total Nitrogen : Nitrogen cycle . The chemical transformation of nitrogen through various stages of decomposition and assimilation : Nitrogen gas . Gaseous form of nitrogen, also called atmospheric nitrogen.

Nitrate Removal from Wastewater through Biological ...
Nitrate Removal from Wastewater through Biological ...

Sources of nitrate comprise natural cycle and human activities, mainly from uncontrolled land discharges of treated or raw domestic and industrial wastewaters, landfills, and animal wastes predominantly from animal farms [1,2]. Therefore, several studies focused on the nitrates removal from wastewater in order to achieve an acceptable concentration

Nitrate and Nitrite in Drinking-water - WHO
Nitrate and Nitrite in Drinking-water - WHO

The nitrate concentration in surface water is normally low (0–18 mg/L; up to ~4 mg/L as nitrate-nitrogen), but can reach high levels as a result of agricultural runoff, refuse dump runoff or contamination with human or animal wastes. The concentration often fluctuates

Nitrogen Nitrate - Hach
Nitrogen Nitrate - Hach

The Chromotropic ,Acid, high range ,nitrate, method involves the reaction of ,nitrate, in a strong ,acid, medium with chromotropic ,acid,. The final reaction mixture is contained in the screw-capped Test ’N Tube ™ vial. The low range ,nitrate, test is also a modification of the Cadmium Reduction Method, and uses a very sensitive chromotropic ,acid, indicator.

* Nitrate (Environment) - Definition - Online Encyclopedia
* Nitrate (Environment) - Definition - Online Encyclopedia

Nitrate is formed in soil from the breakdown of nitrogen-rich proteins in wastewater. Nitrate: a salt or ester (acid-alcohol product) of nitric acid; in soil, used by plants for building amino acids and proteins. Artificially manufactured nitrates are used in fertilizers and explosives.

Adsorption of emerging contaminants from water and ...
Adsorption of emerging contaminants from water and ...

15/3/2021, · Table 1 summarizes the types, impacts and general treatment methods of some typical aqueous ECs. At present, the methods commonly used to remove ECs from water mainly include microbial method (Ferreira et al., 2016), electrochemical method (Barrios et al., 2016), adsorption method, membrane process, and chemical oxidation process (Acero et al., 2015).

Hydrofluoric acid | HF - PubChem
Hydrofluoric acid | HF - PubChem

Hydrofluoric acid, is an irritant to the mucosa of the upper and lower portions of the respiratory tract. As in ocular tissues, concentrations as low as 5 mg/L (5 ppm) may produce irritation to the nasal mucosa. When ,hydrofluoric acid, is present in concentrations greater than 48%, the solution fumes, adding to the volatile airborne fraction.

Nitrate - Wikipedia
Nitrate - Wikipedia

Nitrate, is a polyatomic ion with the chemical formula NO− 3. Salts ,containing, this ion are called nitrates. Nitrates are common components of fertilizers and explosives. Almost all inorganic nitrates are soluble in water. An example of an insoluble ,nitrate, is Bismuth oxynitrate. ,Nitrate, Names Systematic IUPAC name ,Nitrate, Identifiers CAS Number 14797-55-8 Y 3D model Interactive image ChEBI CHEBI:17632 …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City