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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 recycle cans near me
Wastewater from Carbon Capture - Special Considerations ...
Wastewater from Carbon Capture - Special Considerations ...

The SAC resin has a higher selectivity for the amine and ammonia constituents in the wastewater stream than for the acid constituents. This is not true for alkali in the wastewater; therefore, neutralization with sodium hydroxide, potassium hydroxide, or other caustic chemical is not recommended until after ion-exchange treatment.

Phosphate Recovery from Swine Wastewater by a Struvite ...
Phosphate Recovery from Swine Wastewater by a Struvite ...

20/6/2019, · Xiao et al. 1 claimed that the cost recovery of phosphate from swine ,wastewater, using the supernatant of the waste sulfuric ,acid after, dolomite ,neutralization, was 1.7 ¥/m 3, indicating that their ...

New progress of ammonia recovery during ammonia nitrogen ...
New progress of ammonia recovery during ammonia nitrogen ...

28/8/2020, · Abstract. The recovery of ammonia–nitrogen during wastewater treatment and water purification is increasingly critical in energy and economic development. The concentration of ammonia–nitrogen in wastewater is different depending on the type of wastewater, making it challenging to select ammonia–nitrogen recovery technology.

Experimental exploration for measurement of ammonia ...
Experimental exploration for measurement of ammonia ...

Ammonia nitrogen, is an important indicator in the monitoring of water and ,wastewater,. The existing environmental Standards has established ,ammonia nitrogen, as a project for the control of the quality of the water environment ,such as :The Environmental Quality Standards for Surface Water(GB 3838-2002), Groundwater

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).

Removal of ammonia from aqueous solutions by ligand ...
Removal of ammonia from aqueous solutions by ligand ...

Ammonia, is the most commonly occurring nitrogenous pollutant in ,wastewater, and is widely derived from sewage, agricultural and industrial sources. 1–3 The excess emission of ,ammonia, into ecosystems can cause severe environmental problems such as eutrophication and algal bloom. 4 A maximum ,ammonia, concentration of 21 μg L −1 NH 3 –N was considered to be protective for most marine fish ...

1. Introduction - Hindawi
1. Introduction - Hindawi

Human activities appear to be the major contributor to water pollution, for instance, agricultural, industrial, and municipal activities. ,Nitrogen, surplus released into the environment has been proven to cause negative impacts on water qualities, human health, and ecosystems [1].Nonetheless, a wide range of technologies is available to reduce the release of ,ammonia nitrogen, into the ...

Treatment of terephthalic acid plant wastewater with an ...
Treatment of terephthalic acid plant wastewater with an ...

Wastewater, characteristics. The water used in this study was obtained from a Purified Terephthalic ,Acid, (PTA) factory. Raw ,wastewater, was weekly sampled at the entrance of the activated sludge treatment system of the PTA plant, ,after, nutrient (N and P) addition. Table 1 shows a characterization of the ,wastewater,, with the main aromatic

Phosphate Recovery from Swine Wastewater by a Struvite ...
Phosphate Recovery from Swine Wastewater by a Struvite ...

20/6/2019, · Xiao et al. 1 claimed that the cost recovery of phosphate from swine ,wastewater, using the supernatant of the waste sulfuric ,acid after, dolomite ,neutralization, was 1.7 ¥/m 3, indicating that their ...

Nitrogen Syngas 2021 - CRU
Nitrogen Syngas 2021 - CRU

Wastewater, generated at a large-scale fertilizer complexes should preferably be ... Control of pH is of extreme importance in the ,neutralization, reaction process of Nitric ,Acid, and ,Ammonia, to produce ,Ammonia, Nitrate. Many ... From 2008-2020 he worked as a chemical engineer for the ,ammonia, plants of OCI ,Nitrogen, on the Chemelot site in the ...

Nitrogen Syngas 2021 - CRU
Nitrogen Syngas 2021 - CRU

Wastewater, generated at a large-scale fertilizer complexes should preferably be ... Control of pH is of extreme importance in the ,neutralization, reaction process of Nitric ,Acid, and ,Ammonia, to produce ,Ammonia, Nitrate. Many ... From 2008-2020 he worked as a chemical engineer for the ,ammonia, plants of OCI ,Nitrogen, on the Chemelot site in the ...

Removal of ammonia from aqueous solutions by ligand ...
Removal of ammonia from aqueous solutions by ligand ...

Ammonia, is the most commonly occurring nitrogenous pollutant in ,wastewater, and is widely derived from sewage, agricultural and industrial sources. 1–3 The excess emission of ,ammonia, into ecosystems can cause severe environmental problems such as eutrophication and algal bloom. 4 A maximum ,ammonia, concentration of 21 μg L −1 NH 3 –N was considered to be protective for most marine fish ...

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · However, the ,increased, metabolism at the higher temperatures may lead to problems of oxygen limitations. 4.2. Bacterial ... were designed for removal of BOD 5 or ,ammonia nitrogen, (NH 3-N), or both, from ,wastewater, [1, 2]. ... ,Neutralization,: Case of acidic ,wastewater, . Note: a stoichiometric reaction will yield a pH of 7.0.

1. Introduction - Hindawi
1. Introduction - Hindawi

Human activities appear to be the major contributor to water pollution, for instance, agricultural, industrial, and municipal activities. ,Nitrogen, surplus released into the environment has been proven to cause negative impacts on water qualities, human health, and ecosystems [1].Nonetheless, a wide range of technologies is available to reduce the release of ,ammonia nitrogen, into the ...

Growth of Nitrosococcus -Related Ammonia Oxidizing ...
Growth of Nitrosococcus -Related Ammonia Oxidizing ...

Ammonia, oxidation decreases the pH in wastewaters where alkalinity is limited relative to total ,ammonia,. The activity of ,ammonia, oxidizing bacteria (AOB), however, typically decreases with pH and often ceases completely in slightly acidic wastewaters.

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