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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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sewage treatment equipment
Industrial Wastewater Treatment | IWA Publishing
Industrial Wastewater Treatment | IWA Publishing

Industrial wastewater treatment, covers the mechanisms and processes ,used, to treat waters that have been contaminated in some way by anthropogenic industrial or commercial activities prior to its release into the environment or its re-use. Most industries produce some wet waste although recent trends in the developed world have been to minimise such production or recycle such

How Do Wastewater Treatment Plants Work? | SSI
How Do Wastewater Treatment Plants Work? | SSI

Industrial ,wastewater often, contains a very ,high concentration, of readily identifiable chemical compounds. Specialized ,wastewater, treatment plants known as effluent treatment plants (ETPs) are useful for treating the chemical effluent that flows out from industrial manufacturing processes. Industrial sewage may take many different forms.

ELECTROCHEMICAL METHODS FOR ARSENIC REMOVAL FROM ...
ELECTROCHEMICAL METHODS FOR ARSENIC REMOVAL FROM ...

industrial waste. It can be used in both cases: high concentrations of arsenic and very low ones. In the first case, usual concentrations are about 1g/l of arsenic when it could be obtained about 0.10mg/dm3 which provide 99.9–99.99% removal efficiency. In such cases the polishing method has to be used because effluent has few times (up to 10)

Acid Mine Drainage Treatment - Water and Wastewater ...
Acid Mine Drainage Treatment - Water and Wastewater ...

As water comes in contact with the sulfur, it creates a sulfuric ,acid,. The sulfuric ,acid, then dissolves and leaches out the metals that are in the ore, creating ,high, concentrations of dissolved metals such as iron, ,arsenic,, and cadmium. As the water is exposed to oxygen, it oxidizes.

Arsenic | As - PubChem
Arsenic | As - PubChem

Arsenic, is a naturally occurring allotropic pnictogen and metalloid trace element with atomic symbol As, atomic number 33, and atomic weight 74.92 that is found in water, air, food, and soil, and has a role as a micronutrient. ,Arsenic,, which is highly toxic with acute or chronic exposure to moderate or ,high, levels through an unknown mechanism of action, is ,used, in many industrial processes, as ...

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

In the years following the industrial revolution and continuing on into the information age, industries have been challenged to develop new and innovative ways to treat ,wastewater, and bleed streams to encourage recycling and reduce discharge towards the holy grail of so-called 'zero discharge'. We've come a long way in the latter part of the 20th Century, but there's still work to be done as ...

Arsenic | As - PubChem
Arsenic | As - PubChem

Arsenic, is a naturally occurring allotropic pnictogen and metalloid trace element with atomic symbol As, atomic number 33, and atomic weight 74.92 that is found in water, air, food, and soil, and has a role as a micronutrient. ,Arsenic,, which is highly toxic with acute or chronic exposure to moderate or ,high, levels through an unknown mechanism of action, is ,used, in many industrial processes, as ...

Oil and Gas Production Wastewater: Soil Contamination and ...
Oil and Gas Production Wastewater: Soil Contamination and ...

Water is required for a range of day-to-day operations in the oil and gas industries. Activities such as well completions and truck washing may not require water to be of ,high, quality. Therefore, OGPW can be ,used, with little concern for water quality. Minimally treated produced water may be reused by petroleum operators for drilling operations.

(PDF) Heavy Metals In Water : Presence Removal and Safety
(PDF) Heavy Metals In Water : Presence Removal and Safety

The presence of pollutants in aqueous solution, particularly from hazardous heavy metals and metalloids, is an important environmental and social problem.

Characteristics of Waste-Water (Unit-I)
Characteristics of Waste-Water (Unit-I)

• It is essential, to have ,high concentration, of active bacteria present in the sample. 72. Chemical Oxygen Demand • The BOD test takes minimum 5 days time and due to this it is not very useful in control of treatment processes. An alternative test is COD test. It is widely ,used, as a means of measuring the amount of organic matter in the waste.

Industrial Wastewater Treatment Options For Inorganic ...
Industrial Wastewater Treatment Options For Inorganic ...

Typical parameters requiring treatment in industrial ,wastewater, include suspended solids, dissolved metals, nitrate, ammonia, ,arsenic,, and sulfate. This article will be a ,high,-level examination of the treatment options available for inorganic contaminants.

Acid Mine Drainage - an overview | ScienceDirect Topics
Acid Mine Drainage - an overview | ScienceDirect Topics

Acid mine drainage, (AMD), which can have pH values as low as –3.6 (Nordstrom et al., 2000), can contain ,high, concentrations of many solutes, including iron and ,arsenic, (see Chapter 11.5). The highest reported ,arsenic concentration,, 850 000 μg l −1, was found in an ,acid, seep in Richmond mine, California (Nordstrom and Alpers, 1999).

Final Report | Removal of Mercury and Other Heavy Metals ...
Final Report | Removal of Mercury and Other Heavy Metals ...

Concentrations of approximately 1 ppb Hg and 70 ppb arsenic can be achieved by the simple addition of polymeric OTC to the oil-loaded wastewater. This then utilizes …

Arsenic trioxide | As2O3 - PubChem
Arsenic trioxide | As2O3 - PubChem

Arsenic, is a nonessential trace element that is widely distributed in nature. ,Arsenic, was ,used, in medicinal agents in the 19th and early 20th centuries, but has been replaced by safer and more effective agents and has not been in use for over 50 years. Nevertheless, ,arsenic, is found widely in nature and accidental or intentional acute or chronic exposures to moderate or ,high, levels of ,arsenic, ...

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

Acid mine drainage,, ,acid, and metalliferous drainage (AMD), or ,acid, rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. ,Acid, rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks ...

INDUSTRIAL WASTEWATER TREATMENT
INDUSTRIAL WASTEWATER TREATMENT

Industrial wastewater treatment, describes the processes ,used, for treating ,wastewater, that is produced by industries as an undesirable by-product. After ... The two acids commonly ,used, are hydrochloric ,acid, and sulfuric ... and other materials such as ,arsenic,. • Extraction of ,high, value metals such as gold and silver may

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 …

Oil and Gas Production Wastewater: Soil Contamination and ...
Oil and Gas Production Wastewater: Soil Contamination and ...

During oil and natural ,gas production,, so-called “produced water” comprises the largest byproduct stream. In addition, many oil and gas operations are augmented via injection of hydraulic fracturing (HF) fluids into the formation. Both produced water and HF fluids may contain hundreds of individual chemicals, some known to be detrimental to public health and the environment.

Critical review of advanced oxidation processes in organic ...
Critical review of advanced oxidation processes in organic ...

1. Introduction. With socio-economic development, environmental pollution is a growing problem, especially organic ,wastewater, pollution (Rueda-Marquez et al., 2020).Organic pollutants in ,wastewater, pose a threat not only to water resources, but also to human health (Akpan and Hameed, 2011).The most common ,used wastewater, treatment technologies are divided into physical, chemical, and ...

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