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hydraulic fracturing proppant

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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hydraulic fracturing proppant
Can we recover valuable chemicals from sewage?
Can we recover valuable chemicals from sewage?

We are engineering new chemical processes to extract valuable chemicals like sulfur, nitrogen and phosphorous from water, and then use these to create valuable products like fertilizers, disinfectants and more. It’s recycling, but for water. The ammonia in urine, for instance, can be used to make ammonium sulfate, a common fertilizer.

Liquid-Liquid Extraction Tutorial.docx - Liquid-Liquid ...
Liquid-Liquid Extraction Tutorial.docx - Liquid-Liquid ...

Liquid-Liquid Extraction Tutorial 1) 98 % of the benzoic ,acid, in a ,wastewater, stream, initially containing 6000 ppm benzoic ,acid, by mass, is to be removed by continuous counter-current extraction using chloroform as the solvent. The flow rate of feed is 1000 kg/h. Determine the number of theoretical stages and solvent mass flow rate S required if the process operates at = 1.5 S min, where S ...

Wastewater Surveillance Testing Methods | CDC
Wastewater Surveillance Testing Methods | CDC

It is important to quantitatively assess recovery because wastewater is chemically and biologically complex and variable, and often contains constituents that can interfere with sample concentration, nucleic acid extraction, or molecular quantification methods.

Extraction and recovery of lithium | Industrial wastewater ...
Extraction and recovery of lithium | Industrial wastewater ...

However, because it uses phosphoric ,acid,, which although recovered, ,can, leave magnesium and calcium phosphate residues in the form of contaminating sludge. Adsorption methods Selective adsorption of lithium contained in brines (300-1000 ppm) and seawater (0.125 ppm) has been extensively studied using adsorbents such as MnO 2 , TiO 2 , aluminum hydroxide, etc.

How to Remove Ethylene Glycol From Wastewater - CR4 ...
How to Remove Ethylene Glycol From Wastewater - CR4 ...

3/11/2017, · The products of said oxidation are glycolate, glycolic ,acid,, and carbon dioxide ... and that would not grossly pollute the water far worse than EG) that would ,extract, EG efficiently and give a clean separation ... I see no grave dangers of introducing such a process. The Fenton's reagent is already used in ,wastewater, treatment to remove ...

New Renewable Eenergy | Acid whey: Is the waste product an ...
New Renewable Eenergy | Acid whey: Is the waste product an ...

6/2/2017, · It ,can, also produce lactose and calcium phosphate, also known as milk minerals, both of which ,can, be incorporated into other food products, the center notes in a document developed for the dairy industry. Other scientists are using enzyme-based approaches to ,extract, protein and lactose from ,acid, …

Tapping sewage as a source of useful materials
Tapping sewage as a source of useful materials

One is how to economically ,extract, useful chemicals from municipal ,wastewater, when more than 99% of it is, well, water. The presence of pathogens, heavy metals, and toxic compounds such as ...

Biological Treatment of Petrochemical Wastewater | IntechOpen
Biological Treatment of Petrochemical Wastewater | IntechOpen

9/4/2018, · Petrochemical ,wastewater, is inherent to oil industries. The ,wastewater, contains various organic and inorganic components that need to be well managed before they ,can, be discharged to any receiving waters. The complexity of the ,wastewater, and stringent discharge limit push the development of ,wastewater, treatment by combinations of different methods.

New Renewable Eenergy | Acid whey: Is the waste product an ...
New Renewable Eenergy | Acid whey: Is the waste product an ...

6/2/2017, · It ,can, also produce lactose and calcium phosphate, also known as milk minerals, both of which ,can, be incorporated into other food products, the center notes in a document developed for the dairy industry. Other scientists are using enzyme-based approaches to ,extract, protein and lactose from ,acid, …

Liquid liquid extraction and flocculation
Liquid liquid extraction and flocculation

Removal of Phenol from ,Wastewater, ppb Phenol ExtractionExtraction RaffinateRaffinate StrippingStripping SolventSolvent RecoveryRecovery ,Wastewater, Feed 0.1 – 8 % Phenol Raffinate Recycled Solvent ,Extract, PhenolBiological TreatmentBiological Treatment OrOr Carbon AdsorptionCarbon Adsorption < 1 ppm Phenol 37.

Paying Waste: Sewage Contains More Usable Energy Than ...
Paying Waste: Sewage Contains More Usable Energy Than ...

Several methods ,can, be employed to harvest it—for example, engineers ,can extract, methane through anaerobic (oxygen-free) digestion, or produce electricity using microbial fuel cells.

New Renewable Eenergy | Acid whey: Is the waste product an ...
New Renewable Eenergy | Acid whey: Is the waste product an ...

6/2/2017, · It ,can, also produce lactose and calcium phosphate, also known as milk minerals, both of which ,can, be incorporated into other food products, the center notes in a document developed for the dairy industry. Other scientists are using enzyme-based approaches to ,extract, protein and lactose from ,acid, …

US5395536A - Wastewater organic acid removal process ...
US5395536A - Wastewater organic acid removal process ...

The organic liquid may include, but is not limited to, diesel oil, mineral oils or other paraffinic solvents. The organic liquid may be optionally added after or during initial contact of the aqueous solution with the composition containing the polyaluminum chlorohydrate.

Acid Whey FAQ - MooScience
Acid Whey FAQ - MooScience

Liquid ,acid whey can, also be used directly as a healthy additive in food products. ,Extract, Other Useful Nutrients from ,Acid Whey,: Both lactose and lactic ,acid can, be used in food processing. Food scientists are working on processes to economically remove the lactose, lactic ,acid, and minerals from ,acid whey,.

Acid Whey FAQ - MooScience
Acid Whey FAQ - MooScience

Liquid ,acid whey can, also be used directly as a healthy additive in food products. ,Extract, Other Useful Nutrients from ,Acid Whey,: Both lactose and lactic ,acid can, be used in food processing. Food scientists are working on processes to economically remove the lactose, lactic ,acid, and minerals from ,acid whey,.

Extraction and recovery of lithium | Industrial wastewater ...
Extraction and recovery of lithium | Industrial wastewater ...

However, because it uses phosphoric ,acid,, which although recovered, ,can, leave magnesium and calcium phosphate residues in the form of contaminating sludge. Adsorption methods Selective adsorption of lithium contained in brines (300-1000 ppm) and seawater (0.125 ppm) has been extensively studied using adsorbents such as MnO 2 , TiO 2 , aluminum hydroxide, etc.

What wastewater might tell us about COVID-19 infections ...
What wastewater might tell us about COVID-19 infections ...

There, they quickly learned to ,extract, the genetic material of the virus that causes COVID-19 from untreated ,wastewater, samples. This extracted material is not the active virus itself; rather it is a remnant of the SARS-CoV-2 viral particles that COVID-19 patients release into ,wastewater, …

Effects of a Phenol-Enriched Purified Extract from Olive ...
Effects of a Phenol-Enriched Purified Extract from Olive ...

The olive mill ,wastewater, (OMWW) used for the studies was provided by Agriturismo La Vialla (Castiglion Fibocchi (Arezzo), Italy). The phenol-enriched purified ,extract, (OMWW ,extract,) was obtained from Massimo and Daniele Pizzichini according to Patent formulation (Patent 8815815) [].The composition of the batch was provided by a certificate of analysis of Fattoria LaVialla ().

Biological Treatment of Petrochemical Wastewater | IntechOpen
Biological Treatment of Petrochemical Wastewater | IntechOpen

9/4/2018, · Petrochemical ,wastewater, is inherent to oil industries. The ,wastewater, contains various organic and inorganic components that need to be well managed before they ,can, be discharged to any receiving waters. The complexity of the ,wastewater, and stringent discharge limit push the development of ,wastewater, treatment by combinations of different methods.

Waste Degradation and Utilization by Lactic Acid Bacteria ...
Waste Degradation and Utilization by Lactic Acid Bacteria ...

3/10/2016, · ,Lactic acid bacteria, (LAB) are one of the most well-studied bacterial groups known from ancient times. These valuable microorganisms are used in numerous areas, especially food industry and medicine. LAB produce a wide range of compounds for food upgrading. Moreover, LAB ,can, find special applications like generation of bioenergy not affecting the surrounding environment.

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