Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

Acid mine wastewater in China

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

Acid mine wastewater in China
Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · Activated carbon is by far the most common adsorbent used in wastewater treatment. Since, during adsorption, the pollutant is removed by accumulation at the interface between the activated carbon (absorbent) and the wastewater (liquid phase) the adsorbing capacity of activated carbon is always associated with very high surface area per unit volume.

Printing - Standard Methods for the Examination of Water ...
Printing - Standard Methods for the Examination of Water ...

acid-base equilibria. At a given temperature the intensity of the acidic or basic character of a solution is indicated by pH or hydrogen ion activity. Alkalinity and acidity are the acid- and base-neutralizing capacities of a water and usually are expressed as milligrams CaCO3 per liter.

WATER & WASTEWATER ANALYSIS CATALOG
WATER & WASTEWATER ANALYSIS CATALOG

common chemicals, including carbonate, bicarbonate, hydroxide, phosphates, borate and organic acid salts The alkalinity of a water . sample indicates its ability to resist pH change The amount of alkalinity in water is mostly due to the bicarbonate/ carbonate present A low alkalinity level indicates that the water is …

6.6 Alkalinity and Acid Neutralizing Capacity
6.6 Alkalinity and Acid Neutralizing Capacity

Sulfuric ,acid, titrant . Sulfuric ,acid, is the titrant used routinely by the U.S. Geological Survey (USGS). The normality of sulfuric ,acid, titrant is subject to change with time; proper storage and standardization of the ,acid, titrant are essential. ,Reagents, should be stored in a cool (less than 25–30 degrees Celsius

An overview of industrial wastewater treatment and ...
An overview of industrial wastewater treatment and ...

1/1/2005, · There are many acceptable methods for neutralizing over acidic or over alkaline waste waters such as mixing acid wastes with lime slurries, adding the proper proportions of concentrated solutions of sodium hydroxide (NaOH) or sodium carbonate (Na 2 CO 3) to acid wastes, blowing waste boiler flue gases through alkaline wastes and adding waste sulphuric acid to alkaline wastes.

Defining pH Neutralization Systems | Pumps & Systems
Defining pH Neutralization Systems | Pumps & Systems

The preferred method for pH neutralization of waste streams is by the automatic addition of ,acid, or caustic. The ideal setup is a batch neutralization module. A basic batch system includes a treatment tank with a mechanical agitator (mixer), an in-tank pH sensor, an in-tank level control, metering pumps for ,acid, and caustic injection, an automated drain valve or pump for the effluent, and a ...

Chemical Treatment of Highly Toxic Acid Mine Drainage at A ...
Chemical Treatment of Highly Toxic Acid Mine Drainage at A ...

When neutralizing solutions with NaOH, arsenic-containing phases are formed most actively, arsenate chalcophyllite Cu18Al2(AsO4)4(SO4)3(OH)2436H2O, a hydrated iron arsenate scorodite, kaatialaite FeAs3O98H2O and Mg(H2AsO4)2. A common specificity of the neutralization processes is …

Defining pH Neutralization Systems | Pumps & Systems
Defining pH Neutralization Systems | Pumps & Systems

The preferred method for pH neutralization of waste streams is by the automatic addition of ,acid, or caustic. The ideal setup is a batch neutralization module. A basic batch system includes a treatment tank with a mechanical agitator (mixer), an in-tank pH sensor, an in-tank level control, metering pumps for ,acid, and caustic injection, an automated drain valve or pump for the effluent, and a ...

What Exactly Is pH? | Treatment Plant Operator
What Exactly Is pH? | Treatment Plant Operator

A base (or alkali) substance is one that will accept protons, thereby ,neutralizing, the ,acid,. An example of an alkali is hydroxyl (OH-), which when combined with the acidic hydronium ion (H3O+) neutralizes, forming two molecules of water: OH- + H3O+ → 2H2O. Raw ,wastewater, generally has a pH near neutral (7.0), although it may vary between 6 and 8.

What Exactly Is pH? | Treatment Plant Operator
What Exactly Is pH? | Treatment Plant Operator

A base (or alkali) substance is one that will accept protons, thereby ,neutralizing, the ,acid,. An example of an alkali is hydroxyl (OH-), which when combined with the acidic hydronium ion (H3O+) neutralizes, forming two molecules of water: OH- + H3O+ → 2H2O. Raw ,wastewater, generally has a pH near neutral (7.0), although it may vary between 6 and 8.

WO1997000225A1 - Method for producing caro's acid - Google ...
WO1997000225A1 - Method for producing caro's acid - Google ...

The mole ratios of sulfuric acid to hydrogen peroxide (H2S04/H202) can range from about 1/1 to about 4/1 with about 2/1 to about 3/1 being preferred. The reaction results in Caro's acid being...

Zaichenko Acid Mine Drainage Lime Neutralized Sludge
Zaichenko Acid Mine Drainage Lime Neutralized Sludge

A common by -product of lime neutralisation process is gypsum (calcium sulphate bi hydrate). Gypsum precipitation occurs as acidic drainage is often rich in sulphate and calcium added from the lime will bring the solubility product well above saturation.

Neutralization Processing and Study of Dynamic of Acidic ...
Neutralization Processing and Study of Dynamic of Acidic ...

process and increasing ,wastewater, treatment capacity, needless to say the pollution to the water, ... Two types of ,reagents, were used for neutralization in the experiments, ... the residual ,acid, would be react with ,neutralizing, reagent first.

15 types of industrial wastewater treatment processes ...
15 types of industrial wastewater treatment processes ...

For neutralization treatment, the principle of treating waste with waste should be considered first. Such as acid and alkaline wastewater neutralize each other or use waste alkali (slag) to neutralize acidic wastewater, use waste acid to neutralize alkaline wastewater. In the absence of these conditions, a neutralizing agent can be used.

What Role Does CO2 Wastewater Treatment Play in Industry ...
What Role Does CO2 Wastewater Treatment Play in Industry ...

An alternative treatment solution is CO2. When injected directly into wastewater, CO2 causes the formation of carbonic acid, which naturally adjusts the pH to a suitable level. This treatment method is easy to control, and the byproducts it creates are harmless. None of …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City