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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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Remediation techniques for heavy metal-contaminated soils ...
Remediation techniques for heavy metal-contaminated soils ...

15/8/2018, · The concept “nanobioremediation” has just emerged, referring to the techniques for removing ,heavy, metals and organic contaminants from ,wastewater, and soil using nanoparticles (e.g., nanoiron, nanosillicates, and nanousnic ,acid,) generated by particular plants, bacterial, algae, and fungi and bacteria under controlled conditions (Yadav et al., 2017b).

New trends in removing heavy metals from industrial wastewater
New trends in removing heavy metals from industrial wastewater

1/10/2011, · 2.2. Industrial ,wastewater, sources. Industrial ,wastewater, streams containing ,heavy, metals are produced from different industries. Electroplating and ,metal, surface treatment processes generate significant quantities of wastewaters containing ,heavy, metals (such as cadmium, zinc, lead, chromium, nickel, copper, vanadium, platinum, silver, and titanium) from a variety of applications.

"Industrial wastewater neutralization systems. Skid ...

Industrial ,Wastewater, Treatment Systems. Digital Analysis Corporation manufactures skid mounted pH Neutralization Systems, fluoride removal, and ,heavy metal, reduction systems for Industry. With thousands of pH systems installed in the last 28 years our knowledge and experience are second to none.

The Selection of Acid and Base Neutralizing Chemicals
The Selection of Acid and Base Neutralizing Chemicals

The most commonly used neutralization ,chemicals, for ,acid, or base neutralization are 98% Sulfuric ,acid, and 50% Sodium hydroxide. In many cases these are very good choices, however, there are many considerations when selecting ,chemicals, and these may not always be the best selection.

Determination of aluminum content in the wastewater of ...
Determination of aluminum content in the wastewater of ...

There is a large amount of strong acid ,wastewater, containing fluorine ion generated during electrolytic ,aluminum foil, processing.This paper will investigate the EDTA complexometry fast measuring method to determine the ,aluminum, content in ,wastewater,.The study covers the impact of interfered ions on ,aluminum, content measurement,acidity selection,and the determination of ending point.Using ...

Ethylenediaminetetraacetic acid - Wikipedia
Ethylenediaminetetraacetic acid - Wikipedia

Polyaspartic ,acid,, like IDS, binds to calcium and other ,heavy metal, ions. It has many practical applications including corrosion inhibitors, ,wastewater, additives, and agricultural polymers. A Polyaspartic ,acid,-based laundry detergent was the first laundry …

Toxic heavy metal - Wikipedia
Toxic heavy metal - Wikipedia

A ,toxic heavy metal, is any relatively dense ,metal, or metalloid that is noted for its potential toxicity, especially in environmental contexts. The term has particular application to cadmium, mercury and lead, all of which appear in the World Health Organization's list of 10 chemicals of major public concern. Other examples include manganese, chromium, cobalt, nickel, copper, zinc, silver ...

Ethylenediaminetetraacetic acid - Wikipedia
Ethylenediaminetetraacetic acid - Wikipedia

Polyaspartic ,acid,, like IDS, binds to calcium and other ,heavy metal, ions. It has many practical applications including corrosion inhibitors, ,wastewater, additives, and agricultural polymers. A Polyaspartic ,acid,-based laundry detergent was the first laundry …

Recovery of hydrochloric acid from simulated ...
Recovery of hydrochloric acid from simulated ...

15/11/2011, · An experimental study was conducted to recover, hydrochloric acid, from chemosynthesis, aluminum foil wastewaters, by a SWDD membrane module. The experimental results reveal the following. (1) The SWDD membrane module took approximately 3 …

Remediation techniques for heavy metal-contaminated soils ...
Remediation techniques for heavy metal-contaminated soils ...

15/8/2018, · The concept “nanobioremediation” has just emerged, referring to the techniques for removing ,heavy, metals and organic contaminants from ,wastewater, and soil using nanoparticles (e.g., nanoiron, nanosillicates, and nanousnic ,acid,) generated by particular plants, bacterial, algae, and fungi and bacteria under controlled conditions (Yadav et al., 2017b).

Toxic heavy metal - Wikipedia
Toxic heavy metal - Wikipedia

A ,toxic heavy metal, is any relatively dense ,metal, or metalloid that is noted for its potential toxicity, especially in environmental contexts. The term has particular application to cadmium, mercury and lead, all of which appear in the World Health Organization's list of 10 chemicals of major public concern. Other examples include manganese, chromium, cobalt, nickel, copper, zinc, silver ...

Recovery of hydrochloric acid from simulated ...
Recovery of hydrochloric acid from simulated ...

aluminum,, ,aluminum foil,, artificial membranes, cost effectiveness, dialysis, energy, hydrochloric acid, ,wastewater, Abstract: Diffusion dialysis (DD) and conventional electrodialysis (CED) were integrated to recover hydrochloric acid from simulated chemosynthesis ,aluminum foil wastewater,.

Recovery of hydrochloric acid from simulated ...
Recovery of hydrochloric acid from simulated ...

Recovering hydrochloric acid from simulated chemosynthesis ,aluminum foil wastewater, by spiral wound diffusion dialysis (SWDD) membrane module was studied. Effects of flow rate intensity, diffusate flow rate intensity, dialysate flow rate intensity, and initial feed composition (HCl and AlCl₃ concentration) on diffusion performance were investigated.

Recovery of hydrochloric acid from simulated ...
Recovery of hydrochloric acid from simulated ...

1/8/2012, · Tank (4) was used as a feed tank, and in this study a simulated chemosynthesis aluminum foil wastewater composed of 1.35 mol/L hydrochloric acid and 0.15 mol/L aluminum chlorides was added into the tank. Tank (5) was used to receive the dialysate solution treated by the SWDD membrane module.

New trends in removing heavy metals from industrial wastewater
New trends in removing heavy metals from industrial wastewater

1/10/2011, · 2.2. Industrial ,wastewater, sources. Industrial ,wastewater, streams containing ,heavy, metals are produced from different industries. Electroplating and ,metal, surface treatment processes generate significant quantities of wastewaters containing ,heavy, metals (such as cadmium, zinc, lead, chromium, nickel, copper, vanadium, platinum, silver, and titanium) from a variety of applications.

Heavy Metal ions in Industrial Wastewater?
Heavy Metal ions in Industrial Wastewater?

Two forms are common in natural waters: arsenite (AsO3 3u0001) and arsenate (AsO4 3u0001), referred to as arsenic (III) and arsenic (V). Pentavalent (+5) or arsenate species are AsO4 3u0001, HAsO4 ...

(PDF) Synthesis of Potash Alum from Waste Aluminum Foil ...
(PDF) Synthesis of Potash Alum from Waste Aluminum Foil ...

The synthesis of potash alum from, aluminum foil, and aluminum scraps was carried out in this study. The aluminum wastes were dissolved in potassium hydroxide to form a complex aluminate. The solution was filtered and sulphuric acid was then added to

Recovery of hydrochloric acid from simulated ...
Recovery of hydrochloric acid from simulated ...

HCl from acidic ,wastewater, produced by aluminium ,foil, industry was recovered by integrating diffusion dialysis and ED (model solution with 1.35 mol/L HCl and 0.15 mol/L AlCl 3 ) [264] or BMED ...

The Selection of Acid and Base Neutralizing Chemicals
The Selection of Acid and Base Neutralizing Chemicals

The most commonly used neutralization ,chemicals, for ,acid, or base neutralization are 98% Sulfuric ,acid, and 50% Sodium hydroxide. In many cases these are very good choices, however, there are many considerations when selecting ,chemicals, and these may not always be the best selection.

"Industrial wastewater neutralization systems. Skid ...

Industrial ,Wastewater, Treatment Systems. Digital Analysis Corporation manufactures skid mounted pH Neutralization Systems, fluoride removal, and ,heavy metal, reduction systems for Industry. With thousands of pH systems installed in the last 28 years our knowledge and experience are second to none.

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