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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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Profile control with fracturing fluid backflow
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 …

9. Wastewater use case studies
9. Wastewater use case studies

Historically, agricultural use has dominated, and continues to ,do, so, but over the past decade reclaimed ,wastewater, has been increasingly used for landscape irrigation in urban areas and for groundwater recharge. Most of the reclaimed water (78%) is used in the …

Federal Register :: Effluent Limitations Guidelines ...
Federal Register :: Effluent Limitations Guidelines ...

CHWC ,wastewater, means water used in air pollution control systems or water used to quench flue gas or slag generated as a result of commercial hazardous waste combustion operations. Most of the ,wastewater, generated by Commercial Hazardous Waste …

Acid rain - Wikipedia
Acid rain - Wikipedia

Acid rain, has a much less harmful effect on oceans on a global scale, but it creates an amplified impact in the shallower waters of coastal waters. ,Acid rain, can cause the ocean's pH to fall, known as ocean acidification, making it more difficult for different coastal species to …

Energy positive domestic wastewater treatment: the roles ...
Energy positive domestic wastewater treatment: the roles ...

WSPs are the most widely used phototrophic treatment technology. 101 In the U.S. alone there are >7000 WSPs in use, which accounts for over one-third of all centralized treatment systems. 77 During the day, phototrophs in these systems ,produce dissolved oxygen,, which facilitates COD degradation by aerobic heterotrophs 102 and promotes photo-oxidative damage for pathogen removal. 103–105 Although WSPs are often a cost effective solution for ,wastewater, …

Electrochemical Recovery of Phosphorus from Acidic Cheese ...
Electrochemical Recovery of Phosphorus from Acidic Cheese ...

Electrochemical phosphorus mining from high-ionic strength acidic ,wastewater, is accomplished by electrochemically induced calcium phosphate precipitation and provides a …

Wastewater Management: A Plan for the Future - ScienceBuzz
Wastewater Management: A Plan for the Future - ScienceBuzz

This document proposes a 50 year ,wastewater, management plan for the Gastineau Channel, located near Juneau, Alaska. Recently, local ,wastewater, treatment problems have become a recognized health hazard, causing the City and Borough of Juneau to face pending criminal charges. Juneau’s ,wastewater, treatment facilities are discharging viruses, bacteria and parasites which are known to cause ...

Predicting acid concentrations in processing plant ...
Predicting acid concentrations in processing plant ...

PREDICTING ,ACID, CONCENTRATIONS IN PROCESSING PLANT EFFLUEN ™R AN APPLICATION OF TIME SERIES PREDICTION USING NEURAL NETWORKS Antonette M. Logar, Edward M. Cowin and William J. B. Oldham, Department of Computer Science, Texas Tech University The data was generated from a laboratory experiment which models the ,acid, concentration of ,wastewater, from chemical plants.

Electrochemical Recovery of Phosphorus from Acidic Cheese ...
Electrochemical Recovery of Phosphorus from Acidic Cheese ...

Electrochemical phosphorus mining from high-ionic strength acidic wastewater is accomplished by electrochemically induced calcium phosphate precipitation and provides a potential phosphorus source.

Energy positive domestic wastewater treatment: the roles ...
Energy positive domestic wastewater treatment: the roles ...

WSPs are the most widely used phototrophic treatment technology. 101 In the U.S. alone there are >7000 WSPs in use, which accounts for over one-third of all centralized treatment systems. 77 During the day, phototrophs in these systems ,produce dissolved oxygen,, which facilitates COD degradation by aerobic heterotrophs 102 and promotes photo-oxidative damage for pathogen removal. 103–105 Although WSPs are often a cost effective solution for ,wastewater, …

15 Profitable Recycling Businesses You Can Start in 2021 ...
15 Profitable Recycling Businesses You Can Start in 2021 ...

The U.S. are one of the most ecologically conscious countries in the world, and, according to the U.S. Environmental Protection Agency, recycling has been steadily increasing through the years. The municipal solid waste (MSW) generated in 2017 was 267.8 million tons, or 4.51 pounds per person per day. Of the MSW generated, around 67 million tons […]

Technology for Solid Waste Treatment – 浙江奇彩环境科技股份有 …
Technology for Solid Waste Treatment – 浙江奇彩环境科技股份有 …

Technical characteristics: 1, the technology can be comprehensive utilization of solid iron in the iron and aluminum resources, ,do, not need to be separated, reduce costs. 2, resource utilization is high, the basic ,does, not ,produce, secondary pollution.

How Two Young Scientists Built A $250 Million Business ...
How Two Young Scientists Built A $250 Million Business ...

6/7/2020, · Houston-based Solugen is making cheaper, more effective industrial chemicals to help scrub everything from pools and hot tubs to oil and gas companies’ ,wastewater,. Up next: fertilizers. Explore

Overview of Greenhouse Gases | Greenhouse Gas (GHG ...
Overview of Greenhouse Gases | Greenhouse Gas (GHG ...

Nitrous oxide is also generated from treatment of domestic ,wastewater, during nitrification and denitrification of the nitrogen present, usually in the form of urea, ammonia, and proteins. Nitrous oxide emissions occur naturally through many sources associated with the nitrogen cycle, which is the natural circulation of nitrogen among the atmosphere, plants, animals, and microorganisms …

Acid rain - Wikipedia
Acid rain - Wikipedia

Acid, rain is a rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).It can have harmful effects on plants, aquatic animals, and infrastructure. ,Acid, rain is caused by emissions of sulphur dioxide dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to ,produce, acids.

Does Granular Activated Carbon with Chlorination Produce ...
Does Granular Activated Carbon with Chlorination Produce ...

Abstract. Granular activated carbon (GAC) adsorption is well-established for controlling regulated disinfection byproducts (DBPs), but its effectiveness for unregulated DBPs and DBP-associated toxicity is unclear. In this study, GAC treatment was evaluated at three full-scale chlorination drinking water treatment plants over different GAC service ...

What is the full process for making hydrochloric acid for ...
What is the full process for making hydrochloric acid for ...

Hydrochloric ,acid, is prepared by dissolving gaseous hydrogen chloride in water. Because of the corrosive nature of the ,acid,, ceramic, glass, or sometimes tantalum apparatus is commonly used. Hydrochloric ,acid, is usually marketed as a solution containing 28–35 percent by weight hydrogen chloride, commonly known as concentrated hydrochloric ,acid,.

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