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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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Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · Summary The mining of metallic ores (e.g. iron, ,copper,, lead, zinc, molybdenum, and tungsten), precious metals such as gold, platinum and silver, and large scale coal mining all produces ,wastewater, (U.S.EPA, 2010). As discussed below, this ,waste water, is usually mine drainage pumped from mining areas, water used and discharged from the processing of the…

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

Generally, alkaline mercury-,containing wastewater, is usually treated by chemical coacervation or sulfide precipitation; acidic mercury-,containing wastewater, can be treated by metal reduction; low-concentration mercury-,containing wastewater, can be treated by activated carbon adsorption, chemical coacervation or activated sludge; organic mercury ,wastewater, is difficult to treat and is usually first …

Pollution of the Ocean by Sewage Nutrients and Chemicals ...
Pollution of the Ocean by Sewage Nutrients and Chemicals ...

Another source of ocean ,pollution, by sewage-related waste is the disposal of biosolids, a ... its water and ,wastewater, management, and its ,type, of waste pretreatment (if any) before delivery to a ,wastewater, ... ,copper,, lead, mercury, and arsenic) can reach high levels inside marine animals, ...

Solutions for comprehensive reuse of heavy metal ...
Solutions for comprehensive reuse of heavy metal ...

Using the technology of "pre-treatment + electrolytic pre-treatment + electrolytic non-destructive separation + electrolytic advanced treatment", the browning ,copper,-,containing wastewater, is treated into a dilute ,acid, solution with a ,copper, content of less than 0.5g/l, and then discharged into the sewage treatment station, which greatly reduces The subsequent treatment is difficult and costly, and high-purity electrolytic ,copper, …

CHARACTERIZATION OF TEXTILE WASTEWATER - Industrial …
CHARACTERIZATION OF TEXTILE WASTEWATER - Industrial …

Sodium salts of these anions are most commonly used in the process. In heavy metal chromium is in higher concentration while other heavy metals iron, zinc, lead, ,copper, and manganese are also present. The ,wastewater, also have high BOD and COD indication its polluting nature. Keywords. Textile industry, ,wastewater,, heavy metals, BOD, COD. Introduction

The Ultimate Guide to Wastewater Treatment
The Ultimate Guide to Wastewater Treatment

The downside of using ,copper, for improved semiconductor performance is that it created a ,copper,-rich effluent from electroplating that is considered hazardous waste. This ,copper,-rich waste stream also contains high levels of hydrogen peroxide that in most cases cannot be treated on site using conventional effluent treatment processes.

Current Methods For Removing Heavy Metals From Industrial ...
Current Methods For Removing Heavy Metals From Industrial ...

Wastewater treatment and heavy metal pollution as a result of industrial activities are significant issues faced by many countries, especially developing ones. When heavy metals, such as arsenic, cadmium, chromium, copper, lead, nickel and zinc, contained in wastewater discharge into rivers and trenches without proper treatment, the result is ...

Water pollution - Wikipedia
Water pollution - Wikipedia

Water ,pollution, is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers and groundwater. Water ,pollution, results when contaminants are introduced into the natural environment. For example, releasing inadequately treated ,wastewater, into natural water bodies can lead to degradation of aquatic ecosystems. In turn, this can …

4 Types of Water Pollution You Need to Know About
4 Types of Water Pollution You Need to Know About

Just like with the sulfides, water is also the main catalysts here. This type of pollution occurs when heavy metals in a mining site like copper, cobalt, lead, silver, arsenic, and zinc come into contact with water. These metals leach from the source rock and are washed into the main water bodies around.

A review on copper pollution and its removal from water ...
A review on copper pollution and its removal from water ...

The main sources of ,copper pollution, in water are from metal industries such as mines industries, effluents from water treatment plant, electro-refining plant, and ,acid, spillage from water ...

4 Types of Water Pollution You Need to Know About
4 Types of Water Pollution You Need to Know About

Just like with the sulfides, water is also the main catalysts here. This ,type, of ,pollution, occurs when heavy metals in a mining site like ,copper,, cobalt, lead, silver, arsenic, and zinc come into contact with water. These metals leach from the source rock and are washed into the main water bodies around.

Chemical precipitation of heavy metals from wastewater by ...
Chemical precipitation of heavy metals from wastewater by ...

Low-grade magnesite is a by-product that is generated during the mining of magnesite (MgCO 3 ), and the major composition is CaMg (CO 3) 2. It has caused the waste of valuable resources and environmental pollution.

The Ultimate Guide to Wastewater Treatment
The Ultimate Guide to Wastewater Treatment

Within these ,copper, mine operations, the low grade run-of-mine (ROM) material is leached using sulphuric ,acid, to produce ,copper,-,containing, pregnant leach solution (PLS) that is then processed through by SX producing two streams: a concentrated ,copper,-rich electrolyte and a ,copper,-barren raffinate which is neutralised with lime before being sent to the tailings area where clarified water is ...

SOLUTION FOR WASTEWATER PROBLEM ... - Industrial Pollution
SOLUTION FOR WASTEWATER PROBLEM ... - Industrial Pollution

Copper plating solution containing 15,200-ppm cyanide as NaCN can be treated with, sulphuric acid, and air is blown through perforated pipes for 16 hrs. There was substantial decrease in cyanide content. It is not generally satisfactory. Approximately nine days are required for …

A Review on Heavy Metal Ions and Containing Dyes Removal ...
A Review on Heavy Metal Ions and Containing Dyes Removal ...

Hydroxide precipitation is the most widely used chemical precipitation method for removing heavy metals because of its low cost, easy to use and comfortable to control the pH. 121 Hydroxide precipitation agents such as calcium hydroxide (Ca(OH) 2)and sodium hydroxide NaOH are utilised to remove the heavy metal, such as ,copper, and Chromium from the industrial ,wastewater,. 122 To improve the efficiency …

The Ultimate Guide to Wastewater Treatment
The Ultimate Guide to Wastewater Treatment

The downside of using copper for improved semiconductor performance is that it created a copper-rich effluent from electroplating that is considered hazardous waste. This copper-rich waste stream also contains high levels of hydrogen peroxide that in most cases cannot be treated on site using conventional effluent treatment processes.

Current Methods For Removing Heavy Metals From Industrial ...
Current Methods For Removing Heavy Metals From Industrial ...

Wastewater, treatment and heavy metal ,pollution, as a result of industrial activities are significant issues faced by many countries, especially developing ones. When heavy metals, such as arsenic, cadmium, chromium, ,copper,, lead, nickel and zinc, contained in ,wastewater, discharge into rivers and trenches without proper treatment, the result is ...

Characteristics of Wastewater | Wastewater Management
Characteristics of Wastewater | Wastewater Management

Copper,, lead, silver, ... This quantity of oxygen is determined by adding standard amount of potassium permanganate with dilute sulphuric ,acid, to a sample of ,wastewater,. ... It is the most widely used parameter of organic ,pollution, applied to both ,wastewater, as well as surface water.

Solutions for comprehensive reuse of heavy metal ...
Solutions for comprehensive reuse of heavy metal ...

Using the technology of "pre-treatment + electrolytic pre-treatment + electrolytic non-destructive separation + electrolytic advanced treatment", the browning ,copper,-,containing wastewater, is treated into a dilute ,acid, solution with a ,copper, content of less than 0.5g/l, and then discharged into the sewage treatment station, which greatly reduces The subsequent treatment is difficult and costly, and high-purity electrolytic ,copper, …

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