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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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Removal of Cl(−I) from strongly acidic wastewater using ...
Removal of Cl(−I) from strongly acidic wastewater using ...

1/10/2020, · The high concentration of, contaminants, in the acidic wastewater will lower the produced sulfuric acid quality, and may even lead to the unavailability of this recovered sulfuric acid. For instance, during the production where the recovered diluted sulfuric acid containing Cl(−I) is used as the materials, Cl(−I) impurity may be transferred to the products and greatly lower the quality of products.

(PDF) Treatment of Azo Dye-Containing Wastewater Using ...
(PDF) Treatment of Azo Dye-Containing Wastewater Using ...

tation of the ,wastewater, with highly effective strains provides a much more reliable process in whi ch the process manager can use bacterial strains that target particu- lar dye chemic als and ...

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

Therefore, the green glass adsorbent can be used to ,treat wastewater, containing heavy metal ions with a concentration ranging from sub-ppm to %. The glass structure is retained on purpose during the transformation process, so the green glass adsorbent can work with acids and chemicals and can even be used to ,treat wastewater, in a low pH medium (equating to 0) to accomplish effective absorbing ...

Zinc removal from wastewater
Zinc removal from wastewater

5/11/2009, · We are dealing with some problems in our current system for treating ,wastewater,. Due to the high Zinc concentration, we are producing a huge volume of sludge at the end of the process. The treatment we use increases the pH until 6 with magnesium oxide and then, we add an organic flocculant in order to remove some ,iron, present in the effluent.

US5120452A - Process for purifying wastewater with ...
US5120452A - Process for purifying wastewater with ...

A process for treating wastewater the improvement which comprises admixing with the wastewater at least 0.5 percent by weight of a solution consisting of hypochlorous acid having a pH of less than...

Wastewater organic acid removal process - Baker Hughes Inc.
Wastewater organic acid removal process - Baker Hughes Inc.

It is speculated, that the aluminum cation is functioning to replace the sodium (or calcium) cation to result in an insoluble aluminum naphthenate precipitate. This method offers an advantage over acidified extraction as a strategy for organic acid removal in that it does not require pH depression.

The Disappearance of Kelp Forests - The Restoration Project
The Disappearance of Kelp Forests - The Restoration Project

As ocean pH drops, the aquatic environment could become to ,acidic, for kelp to survive. Human use of rivers and estuarine habitats can also affect kelp forests. As we continue to use rivers for such things as logging, dredging, and development, we dislodge large amounts of sediment into the rivers that is ultimately flushed into the oceans.

Polyacrylamide for steel wastewater
Polyacrylamide for steel wastewater

Such a low sulfuric ,acid, content obviously has no recovery value, so neutralization is often used. Method. The treatment of mine ,acid wastewater, generally adopts the lime neutralization method. ,Iron, and steel plant ,wastewater, treatment uses anionic polyacrylamide as a flocculant to ,treat wastewater, …

Groundwater pollution - Wikipedia
Groundwater pollution - Wikipedia

Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way down into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.

(PDF) Flocculation : A New Way to Treat the Waste Water
(PDF) Flocculation : A New Way to Treat the Waste Water

So it is necessary to remove suspension in water and ,wastewater,. The coagulation-flocculation method is sustainable solution for different kind of surface water, ground water, synthetic water and ...

Remediation of wastewater contaminated by antibiotics. A ...
Remediation of wastewater contaminated by antibiotics. A ...

30/11/2019, · Municipal ,wastewater, treatment plant, which is a place for antibiotic ,wastewater,-concentrated disposition, cannot completely remove antibiotics by conventional secondary treatment. In this case, the research emphasis of antibiotic ,wastewater, treatment includes the removal efficiency and, at the same time, the cost.

Wastewater organic acid removal process - Baker Hughes Inc.
Wastewater organic acid removal process - Baker Hughes Inc.

It is speculated, that the aluminum cation is functioning to replace the sodium ... It should be recognized that the addition of ,acidic, polyaluminum chloride solutions to sulfide-containing process waters can alter the chemistries such that H 2 S gas can be ... removal which can be equally important to ,wastewater, treatment and fish toxicity.

A study on the mechanism of oxidized quinoline removal ...
A study on the mechanism of oxidized quinoline removal ...

reaction of Fe2+, organics and PS in ,acidic, solutions. This may dramatically improve the overall removal efficiency of Qu. The results indicated that the initial removal rate of Qu increases from 85.8% to 92.9%. The cleavage pathway of Qu is ,speculated, by Frontier molecular orbital (FMO) theory and verified by GC/ MS analysis. Introduction

Efficient nitrification and low N2O emission in a weakly ...
Efficient nitrification and low N2O emission in a weakly ...

15/3/2021, · This study demonstrated that comammox Nitrospira can survive well under the weakly ,acidic, and low-DO conditions, implying that achieving efficient nitrification with low N 2 O emission as well as low energy and alkalinity consumption is feasible for ,wastewater, treatment.

Treatment of Organics Contaminated Wastewater by Ozone ...
Treatment of Organics Contaminated Wastewater by Ozone ...

The highest efficiency was observed in weak ,acidic, conditions and an increase in salinity enhanced the treatment efficiency significantly. Furthermore, the treatment of highly saline industrial ,wastewater, as well as multi-contaminant groundwater containing persistent organics were also investigated.

Treatment of Organics Contaminated Wastewater by Ozone ...
Treatment of Organics Contaminated Wastewater by Ozone ...

The highest efficiency was observed in weak ,acidic, conditions and an increase in salinity enhanced the treatment efficiency significantly. Furthermore, the treatment of highly saline industrial ,wastewater, as well as multi-contaminant groundwater containing persistent organics were also investigated.

Resource utilization of pickling wastewater (waste acid)
Resource utilization of pickling wastewater (waste acid)

Neutralization is the most commonly used method to treat pickling wastewater (waste acid). The commonly used neutralizing agents are limestone, soda, sodium hydroxide, fly ash, etc. The process of lime neutralization + three effect evaporation is adopted.

Performance and mechanism of methylene blue degradation by ...
Performance and mechanism of methylene blue degradation by ...

However, at different initial pH values, slight fluctuations in the removal effect confirmed that, under ,acidic, conditions, Fe 3+ is converted to soluble monomeric may be hydrated and species such as Fe(OH) 2+, Fe(OH) 2 + and Fe 2 (OH) 2 4+ are predominant in the EC system. 42 Besides, the soluble Fe(iii) and Fe(ii) show a certain stability at pH < 6.0, and thus Fe(OH) 3 and Fe(OH) 2 flocs are more poorly …

Groundwater pollution - Wikipedia
Groundwater pollution - Wikipedia

Groundwater pollution, can be caused by untreated waste discharge leading to diseases like skin lesions, bloody diarrhea and dermatitis. This is more common in locations having limited ,wastewater, treatment infrastructure, or where there are systematic failures of the on-site sewage disposal system.

How To Apply Defoaming Agent In Different Wastewater ...
How To Apply Defoaming Agent In Different Wastewater ...

It is one of the industrial wastewater which is difficult to treat. The common treatment method of papermaking wastewater is coagulation method, which has the advantages of strong adaptability, simple equipment and convenient operation, but it has the disadvantages of high cost and large sludge production, the other is biological method, which has no secondary pollution.

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