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

Study on the acidity of wax casting wastewater

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.

Study on the acidity of wax casting wastewater
Biological process for synthesis of semiconductor copper ...
Biological process for synthesis of semiconductor copper ...

tion [17] and bio-treatment [18–20] of the ,acid, drainage of mines. The Sarcheshmeh ,Copper, Complex which is located in 160 km SW of Kerman, Iran, suffers from the same problem. 1500 t/day chalcopyrite concentrate with about 27% ,copper, content is produced in this complex [21]. Rock wastes and low grade oxide

Green synthesis of multifunctional copper sulfide for ...
Green synthesis of multifunctional copper sulfide for ...

Copper sulfide, (CuS) was prepared by co-precipitation process at low temperature and atmospheric pressure without any additive while Cu(NO3)2and thioacetamide were used as ,copper, and ,sulfide, sources, respectively. The effects of concentration, time, temperature, molar ratio of sulfur to ,copper, and the pH of reaction system on the morphology of CuS ...

Removing Dissolved Copper from wastewater effluent
Removing Dissolved Copper from wastewater effluent

The, copper, laden, wastewater, passes through the resin bed and, copper, ions are exchanged for hydrogen ions until the unit is exhausted. Once the resin bed is exhausted,, sulfuric acid, is used to regenerate. The spent solution of, copper, ion and, sulfuric acid, is sent to another system for disposal.

Heavy Metal Reduction from Industrial Wastewater Streams
Heavy Metal Reduction from Industrial Wastewater Streams

In the photos above a ,wastewater, with a Cu concentration of 300 ppm is precipitated as a hydroxide (figure 4.) and a ,sulfide, (figure 5.). Both are allowed to settle for 10 minutes. In the figure on the left a layer of blue sludge representing ~10% of …

Copper Sulfide Mining Threatens the Boundary Waters ...
Copper Sulfide Mining Threatens the Boundary Waters ...

Copper sulfide, mining extracts ,sulfide, ores which contain metals that are bonded to the sulfur. The process breaks apart the ore, exposing it to air and water, then soaks it in chemicals to release ,copper, and other minerals. A small percentage of the ore is actually metal, most of it is ,sulfide, that turns to sulfuric ,acid, in the process.

Copper complexation by dissolved organic matter from ...
Copper complexation by dissolved organic matter from ...

Consideration of ,sulfide, present in the ,wastewater, effluent does not fully explain this deviation. Due to the possibility that there exist nonhumics like biological macromolecules in WWOM, it may need to be considered as an alternative ligand to humics in toxicity and speciation predicting models like the biotic ligand model (BLM). PMID: 15922799

Copper Sulfide Mining Threatens the Boundary Waters ...
Copper Sulfide Mining Threatens the Boundary Waters ...

Copper sulfide, mining extracts ,sulfide, ores which contain metals that are bonded to the sulfur. The process breaks apart the ore, exposing it to air and water, then soaks it in chemicals to release ,copper, and other minerals. A small percentage of the ore is actually metal, most of it is ,sulfide, that turns to sulfuric ,acid, in the process.

Calcium oxide CaO - Lime - Kalkfabrik Netstal AG
Calcium oxide CaO - Lime - Kalkfabrik Netstal AG

KFN is the producer of highly pure and very reactive calcium oxide products. Offered in various grain sizes, our ,quicklime, products are the ideal base products for a wide spectrum of applications in the chemical industry, the industrial ,wastewater, cleaning, in the construction of roads and in the construction materials industry.

A Safer Alternative to Bulk Hydrated Lime Quicklime or ...
A Safer Alternative to Bulk Hydrated Lime Quicklime or ...

When compared to ,quicklime,, there is no slaking required. TG 325 OX is the practical choice that provides a safer, more cost-effective alternative. Call 800/227-4287 or visit thioguard.com to learn how TG 325 OX can improve plant performance and reduce operating costs.

ASTM-C911 | Standard Specification for Quicklime Hydrated ...
ASTM-C911 | Standard Specification for Quicklime Hydrated ...

ASTM-C911 Standard Specification for ,Quicklime,, Hydrated ... specification covers lime and limestone products that are suitable for chemical and industrial uses such as in waste ,acid, neutralization, agricultural liming, soil stabilization, asphalt, flue gas desulfurization, drinking water softening, waste and ,wastewater, neutralization ...

Copper complexation by dissolved organic matter from ...
Copper complexation by dissolved organic matter from ...

Consideration of ,sulfide, present in the ,wastewater, effluent does not fully explain this deviation. Due to the possibility that there exist nonhumics like biological macromolecules in WWOM, it may need to be considered as an alternative ligand to humics in toxicity and speciation predicting models like the biotic ligand model (BLM). PMID: 15922799

Selective sulfide precipitation of copper ions from ...
Selective sulfide precipitation of copper ions from ...

Copper and arsenic in acidic, wastewater, were, separated, by, cascade sulfidation, followed by replacement of arsenic in the precipitates by copper in the solution which was realized by recycling ...

Selective sulfide precipitation of copper ions from ...
Selective sulfide precipitation of copper ions from ...

25/2/2020, · The selective adsorption of copper ions on the surface of, iron sulfide, minerals suggests that FeS can be a reagent for the sulfide precipitation of copper ion in highly acid wastewater. Moreover, FeS may contribute to the selective separation of copper from arsenic, which is beneficial for the recovery and utilization of metal ions in wastewater.

Treatment of complexed copper in waste water
Treatment of complexed copper in waste water

27/2/2019, · A. Copper responds very well to ferrous sulfide. It is generated in situ by adding a little ferrous sulfate (about 1 - 2 pounds per 1000 gallons of wastewater) at pH 4 or thereabouts, raising the pH to 9 with sodium hydroxide, and dosing the waste with sodium sulfide. This should be used sparingly - about a pound per 1000 gallons of wastewater.

Treatment of complexed copper in waste water
Treatment of complexed copper in waste water

27/2/2019, · A. Copper responds very well to, ferrous sulfide., It is generated in situ by adding a little, ferrous, sulfate (about 1 - 2 pounds per 1000 gallons of wastewater) at pH 4 or thereabouts, raising the pH to 9 with sodium hydroxide, and dosing the waste with sodium sulfide. This should be used sparingly - about a pound per 1000 gallons of wastewater.

Hydrothermal Treatment of Arsenic Sulfide Residues from ...
Hydrothermal Treatment of Arsenic Sulfide Residues from ...

In the smelting of ,copper, or lead-zinc ore, larger amounts of acidic ,wastewater, are discharged when gaseous emission containing SO2, As, Cu, Pb, Zn and other impurities are washed with diluted ,acid, [7]. Moreover, wasted electrolyte with a high concentration of arsenic is produced abundantly in ,copper, and lead-zinc electrolyte processes [8,9].

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

The most commonly mined ore of ,copper,, chalcopyrite, is itself a ,copper,-iron-,sulfide, and occurs with a range of other sulfides. Thus, ,copper, mines are often major culprits of ,acid mine drainage,. At some mines, acidic drainage is detected within 2–5 years after mining begins, whereas at other mines, it is not detected for several decades.

Chemical Make-Up Storage & Dosing Systems for Wastewater ...
Chemical Make-Up Storage & Dosing Systems for Wastewater ...

Chemical Make-Up, Storage & Dosing Systems for, Effluent Treatment Richard Alan is a specialist group of companies with 50 years’ engineering experience, providing turnkey solutions for chemical systems, including; make-up, storage and dosing for effluent treatment.

Zero Liquid Discharge Compliance Strategies for FGD Wastewater
Zero Liquid Discharge Compliance Strategies for FGD Wastewater

blowdown, gypsum, fly ash and ,quicklime, disposal in a landfillfor This reaction uses the . station’s fly ash as a cementing agent. This approach the ability to sell fly ash used for reduces commercial products and requires extra landfill volume. The basic pozzolanic reaction is an ,acid,-base reaction between lime and silicic ,acid, (H 4SiO 2 ...

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City