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fracturing flow-back fluids discharge fluid retention

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 discharge fluid retention
New concepts of microbial treatment processes for the ...
New concepts of microbial treatment processes for the ...

The newly discovered anaerobic ,ammonia, oxidizing planctomycetes and the anaerobic metabolism of proteobacterial ,ammonia, oxidizers open up new possibilities for ,nitrogen, removal from ,wastewater,. More specifically, the paradigm that the only way to biologically convert ,wastewater, ammonium to dinitrogen gas necessitates the complete oxidation to nitrate followed by heterotrophic denitrification, …

The Benefits of Nitrogen Monitoring by High Temperature ...
The Benefits of Nitrogen Monitoring by High Temperature ...

20/9/2002, · Total Kjeldahl ,Nitrogen, (TKN) is the standard method for organic ,nitrogen, analysis of ,wastewater,. The objective of the TKN test is to convert ,nitrogen, from biological origins or organic ,forms, into ,ammonia, through a digestion procedure. The ,ammonia, is then determined through a titration procedure. Hence, TKN is the sum of organic ,nitrogen, and ...

New concepts in anammox processes for wastewater nitrogen ...
New concepts in anammox processes for wastewater nitrogen ...

The discovering of anaerobic ammonium oxidation (anammox) process led to the development of autotrophic nitrogen removal systems for the treatment of effluents with low C:N rate. The anammox processes provide an efficient way to remove high concentrations of ammonium compounds from industrial and urban wastewater and covert them to dinitrogen.

The Adsorption of Ammonium Nitrogen from Milking Parlor ...
The Adsorption of Ammonium Nitrogen from Milking Parlor ...

Ammonium ,nitrogen, (NH 4 –N) is one of the main components of milking parlor ,wastewater, [], and when in excess concentration, its release into bodies of water leads to serious environmental ramifications such as eutrophication, ,acid, deposition, reactive ,nitrogen, emissions, global warming, and over-fertilized soils [3,4].,Nitrogen, is often regarded as the most essential and determinant nutrient ...

TROUBLESHOOTING OF NITRIFICATION UPSETS AT …
TROUBLESHOOTING OF NITRIFICATION UPSETS AT …

In municipal ,wastewater,, organic amines (mostly urea) undergoes biologically mitigated hydrolysis very quickly, with the residual non-,ammonia, TKN being no more than 1.5 mg/l (EPA, 1978) and mostly originating from byproducts of biological metabolism. In such ,wastewater,, the limiting step in the ,nitrogen, removal sequence is normally the subsequent

Dynamics of Nitrogen Transformation and Removal in a Pilot ...
Dynamics of Nitrogen Transformation and Removal in a Pilot ...

The pilot unit received ,wastewater, from an ,existing, ... ,Nitrogen forms, considered were organic ,nitrogen,, ,ammonia nitrogen, ... Mass balance equations for organic ,nitrogen,, ,ammonia,-,nitrogen,, and nitrate-,nitrogen, in high rate pond (HRP) are expressed in accordance with Equations (2)-(4), ...

Nutrient Recovery from Municipal Wastewater for ...
Nutrient Recovery from Municipal Wastewater for ...

10/7/2019, · In contrast to P, ,nitrogen, availability for fertilizer production is inexhaustible as the industrial process such as Haber–Bosch ,nitrogen, fixation can convert ,nitrogen, gas to ,ammonia,; but ,ammonia, synthesis is energy-intensive because so much energy is required to break the triple bond of molecular N ≡ N so that it can be converted (with the addition of hydrogen from water) to two molecules ...

Dynamics of Nitrogen Transformation and Removal in a Pilot ...
Dynamics of Nitrogen Transformation and Removal in a Pilot ...

The pilot unit received ,wastewater, from an ,existing, ... ,Nitrogen forms, considered were organic ,nitrogen,, ,ammonia nitrogen, ... Mass balance equations for organic ,nitrogen,, ,ammonia,-,nitrogen,, and nitrate-,nitrogen, in high rate pond (HRP) are expressed in accordance with Equations (2)-(4), ...

The Adsorption of Ammonium Nitrogen from Milking Parlor ...
The Adsorption of Ammonium Nitrogen from Milking Parlor ...

Ammonium ,nitrogen, (NH 4 –N) is one of the main components of milking parlor ,wastewater, [], and when in excess concentration, its release into bodies of water leads to serious environmental ramifications such as eutrophication, ,acid, deposition, reactive ,nitrogen, emissions, global warming, and over-fertilized soils [3,4].,Nitrogen, is often regarded as the most essential and determinant …

Nitrogen and Phosphorus Recovery from Wastewater (pdf ...
Nitrogen and Phosphorus Recovery from Wastewater (pdf ...

Air stripping of ,ammonia, from anaerobic digestate has been reported to recover 70–92 % ,of nitrogen,. Membrane separation provides recovery in the order of 99–100 % with no secondary pollutant in the permeate.With regard to phosphorus (P) removal, physical filtration and membrane processes have the potential to reduce suspended P to trace amounts but provide minimal dissolved P removal.

1. Introduction - Hindawi
1. Introduction - Hindawi

Ammoniacal ,nitrogen, is one of the ,wastewater, contaminants, which can be found in many types of ,wastewater,. Excessive ammoniacal ,nitrogen, in water body may lead to eutrophication, which induces the growth and decay of excessive plant and algal, and caused degradation of the water quality [1].Notably, algal blooms may limit light penetration.

White Paper - METHANOL INSTITUTE
White Paper - METHANOL INSTITUTE

Domestic ,wastewater, typically has a total ,nitrogen, content that is about one-fifth of the BOD, with typical ,nitrogen, concentrations ranging from 20 to 70 mg/L. About 60% to 70% is ,ammonia,-,nitrogen,, and 30% to 40% percent is organic ,nitrogen,, with less than 1% nitrite and nitrate ,nitrogen, (Tchobanoglous et …

Ammonia - Wikipedia
Ammonia - Wikipedia

Ammonia, is a compound ,of nitrogen, and hydrogen with the formula NH 3.A stable binary hydride, and the simplest pnictogen hydride, ,ammonia, is a colourless gas with a distinct characteristic of a pungent smell. It is a common nitrogenous waste, particularly among aquatic organisms, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to ...

Industrial wastewater treatment for fertilizer industry—A ...
Industrial wastewater treatment for fertilizer industry—A ...

nutrients such as ,nitrogen,, phosphorous and potassium (N, P, K- nitrogenous, phosphatic and potassic fertilizers). A typical fertilizer industry complex would include ,ammonia, plant (essential for ,nitrogen, fertilizers), ,acid, plants such as phosphoric ,acid,/nitric ,acid,, solvents such …

Beyond fossil fuel–driven nitrogen transformations | Science
Beyond fossil fuel–driven nitrogen transformations | Science

Reduced ,forms of nitrogen,, particularly ,ammonia, (NH 3), are vital to life. Before the early 1900s, all reduced N came from biological ,nitrogen, fixation by microbes. This landscape changed in the early 1900s with the invention by Haber and Bosch of an industrial process to reduce N 2 …

11-Design and Development of Sustainable Wastewater ...
11-Design and Development of Sustainable Wastewater ...

ammonia nitrogen, oxidized in advanced ,wastewater, treatment because the POTE discharge effluent has acidic nature of pH 6.6 (Metcalf & Eddy, 2015). Nitrate is th e hydrogen electron acceptor. As the algae production takes place in lake due to photosynthesis and therefore limited nutrients must be available for the control of eutrophication.

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