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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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Nickel - Ni - Water Treatment and Purification - Lenntech
Nickel - Ni - Water Treatment and Purification - Lenntech

Effects ,of nickel, on the ,environment,. ,Nickel, is released into the air by power plants and trash incinerators. It will than settle to the ground or fall down after reactions with raindrops. It usually takes a long time for ,nickel, to be removed from air. ,Nickel, can also end up in surface water when it is a part of ,wastewater, streams.

The economic and environmental benefi ts of new wastewater ...
The economic and environmental benefi ts of new wastewater ...

environment. Th e plant removed nickel to less than 0.2ppm (parts per million), well below the required 0.5ppm set by regulators. BioteQ built the plant for US$1.8m, and is responsible for all aspects of the on-going plant operations. Xstrata pays BioteQ a water treatment fee, and sells the nickel that is recovered,

Treating Metal Finishing Wastewater
Treating Metal Finishing Wastewater

and the entire ,treatment, requires several adjustments of pH as well as the addition of ,acid,, coagulant, lime or caustic, and polymeric flocculant. In addition, the process generates large volumes of sludge/waste which requires disposal and is normally hazardous due to the high concentrations of heavy

Review on biological wastewater treatment and resources ...
Review on biological wastewater treatment and resources ...

Anaerobic biological ,treatment, of ,acid, mine drainage from abandoned mines using SRB has shown nearly 99.2% effective removal of copper, zinc, and ,nickel, (Sierra-Alvarez et al. 2006). The use of suspended biological methods for bioremediation of ,wastewater, and resources recovery is an eco-friendly and cost-efficient way.

Electrical Products | IPEX
Electrical Products | IPEX

Industrial Process Piping, Double Containment, ,Acid, Waste, Compressed Air & Valves Electrical PVC Conduit & Fittings, Lighting, Duct, HDPE, Specialty Products PE Electrofusion Friatec Fittings for Water, Genesis Electrofusion Processor

Ethylenediaminetetraacetic acid - Wikipedia
Ethylenediaminetetraacetic acid - Wikipedia

Ethylenediaminetetraacetic ,acid, (EDTA) is an aminopolycarboxylic ,acid, with the formula [CH 2 N(CH 2 CO 2 H) 2] 2.This white, water-soluble solid is widely used to bind to iron and calcium ions. It binds these ions as a hexadentate ("six-toothed") chelating agent.EDTA is produced as several salts, notably disodium EDTA, sodium calcium edetate, and tetrasodium EDTA.

Defining Hazardous Waste: Listed Characteristic and Mixed ...
Defining Hazardous Waste: Listed Characteristic and Mixed ...

Wastewater treatment, sludges from electroplating operations except from the following processes: (1) Sulfuric ,acid, anodizing of aluminum; (2) tin plating on carbon steel; (3) zinc plating (segregated basis) on carbon steel; (4) aluminum or zinc-aluminum plating on carbon steel; (5) cleaning/stripping associated with tin, zinc and aluminum plating on carbon steel; and (6) chemical etching and ...

Comparison on efficiency of various techniques in ...
Comparison on efficiency of various techniques in ...

1/12/2016, · Methods of ,wastewater treatment, were first developed in response to the adverse conditions caused by the discharge of ,wastewater, to the ,environment, and the concern for public health. Further, as cities became larger, limited land was available for ,wastewater treatment, and disposal, principally by irrigation and intermittent filtration.

Wastewater Management | Encyclopedia.com
Wastewater Management | Encyclopedia.com

Wastewater, ManagementWastewater is any water that requires cleaning after it is used. This includes water that has been used for laundry, bathing, dishwashing, toilets, garbage disposals, and industrial purposes. ,Wastewater, also includes rainwater that has accumulated pollutants as it runs into oceans, lakes, and rivers. Pollutants are unwanted chemicals or materials that contaminate air, soil ...

One-Step Treatment of Phosphite-Laden Wastewater: A Single ...
One-Step Treatment of Phosphite-Laden Wastewater: A Single ...

The quenching experiments with scavengers and electron spin resonance tests verify the pivotal role of •O2– in transformation of phosphite. Tests carried out with ,nickel,-plating ,wastewater, further demonstrate the superiority of this integrated system, as evidenced by efficient removal of phosphite and ,nickel, …

Scenedesmus - Wikipedia
Scenedesmus - Wikipedia

Scenedesmus, is known to have high biomass productivity among green algae, and has been actively researched for its use for bio-diesel production. Its heterotrophic production of biomass and lipid in optimized conditions is reported to have higher efficiency than its autotrophic production.

Removal of nickel and vanadium from ammoniacal industrial ...
Removal of nickel and vanadium from ammoniacal industrial ...

An ,acid, rinse (1 M H 2 SO 4) enhanced ,nickel, recovery up to 94%. Anion exchange proved to be the most effective method for simultaneous removal ,of nickel, and vanadium from industrial ,wastewater,. Keywords: ,Nickel, , Vanadium , Industrial ,wastewater, , Adsorption , Ion exchange , Regeneration

Recent advances in waste water treatment through ...
Recent advances in waste water treatment through ...

15/3/2021, · The optical properties of TMSs-based photocatalysts and their applications in ,wastewater treatment, are summarized in Table 2. For instance, CdS sub-microspheres with ∼0.5 µm size possessed a low band gap of 2.26 eV, showing potential applications in photodegradation of acetaminophen and levofloxacin Al Balushi et al., 2018 ).

Problems & Solutions | Environmental Protection Department
Problems & Solutions | Environmental Protection Department

Treatment, processes for chelated zinc, copper and ,nickel, waste solutions are essentially the same as those for chelated ferric chloride etchants. Due to the multiple waste streams involved and a multitude of chelated compounds in these streams, two parallel ,treatment, trains are used.

Water quality for agriculture - Home | Food and ...
Water quality for agriculture - Home | Food and ...

The ,acid, can be added to the system on a continuous basis if the problem is severe enough but this is expensive and difficult and the ,acid, is dangerous to handle. It is recommended that ,acid, be added at a rate to maintain pH close to but not lower than pH 6.5. Sulphur burners have also been used to acidify the supply water for drip irrigation.

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

4. Electrolysis. Electrolytic ,treatment, of high-concentration circuit board ,wastewater, can reduce the content of heavy metal ions, but the electrolysis method is effective only for the ,treatment, of high-concentration heavy metal ions, and consumes a large amount of electricity, and can only process a …

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