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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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Solid Waste Disposal Near me
Wastewater and Sludge | Liquid Lime | The Artesia Companies
Wastewater and Sludge | Liquid Lime | The Artesia Companies

Wastewater, neutralization. ,Wastewater, must be neutralized to adjust its pH value in order to meet the requirements of different processing units within a ,wastewater treatment, system. Neutralization may be used to treat ,acid, wastewaters containing metals. Adding an alkaline reagent increases the pH of the ,acid, …

Chemical Treatment | Wastewater Treatment | Austro Water Tech
Chemical Treatment | Wastewater Treatment | Austro Water Tech

For acidic wastes (low pH) sodium ,hydroxide,, sodium carbonate, ,calcium, carbonate or ,calcium hydroxide,, may be added among other things. For alkali wastes (high pH) sulphuric ,acid, or hydrochloric ,acid, may be added. Acids can cause corrosion of equipment and care must be taken in choosing which ,acid, …

2016 WATER & WASTEWATER TREATMENT CHEMICALS BID TABULATION ...
2016 WATER & WASTEWATER TREATMENT CHEMICALS BID TABULATION ...

2016 WATER & ,WASTEWATER TREATMENT CHEMICALS BID TABULATION, ... Hydrofluosilic ,Acid, (liquid) 31,000 Pounds ,Calcium Hydroxide, (High ,Calcium, 1,900 Tons $ 179.90 $ 341,810.00 $ 278.63 $ 529,397.00 Hydrated Lime) Powder Sulfuric ,Acid, 93% (liquid) 142,000 Pounds Powdered ...

pH Correction – Wastewater Treatment | Acorn Water
pH Correction – Wastewater Treatment | Acorn Water

pH Correction is a critical ,treatment, method in ,wastewater, processing. ... ,Calcium hydroxide, (hydrated lime) neutralizes acidity and increases alkalinity. Read more. Hydrochloric ,acid,. A strong ,acid, used to adjust pH of water or ,wastewater, throughout the ,treatment, process. Read more. Magnesium ,hydroxide,.

Removal of Cr( vi ) from wastewater by a two-step method ...
Removal of Cr( vi ) from wastewater by a two-step method ...

In this study, we investigated a two-step method to eliminate ,Cr,(VI) from ,wastewater,; in detail, the first step included the reduction of ,Cr,(VI) to ,Cr,(III) in the presence of oxalic ,acid,, followed by the adsorption of ,Cr,(III) onto MFA. At first, the optimal concentration of oxalic ,acid, was measured.

Removal of Boron from Wastewater by Precipitation of a ...
Removal of Boron from Wastewater by Precipitation of a ...

for the ,treatment, of ,wastewater, containing 50 g L 1 of sulfuric ,acid, and 0.7 g L 1 of boron, and a well-adapted precipitation process consisting of the neutral-ization of boric and sulfuric acids by powdered ,cal-cium hydroxide, is proposed. Experimental results show that under optimal conditions (50 g L …

Calcium (Ca) and water - Water Treatment and Purification
Calcium (Ca) and water - Water Treatment and Purification

Other examples of ,calcium, applications are ,calcium, hypo chloride as bleach and for disinfection, ,calcium, phosphate in glass and porcelain industries, ,calcium, polysulphide and ,hydroxide, as flocculants in ,wastewater treatment,, and ,calcium, fluoride as turbidity agent in enamel industries, in UV-spectroscopy, and as a raw material for fluid ,acid, production.

6 Kinds of Chemicals Used in Wastewater Treatment
6 Kinds of Chemicals Used in Wastewater Treatment

The most used ,acid, is Sulfuric ,Acid,. This is due to its cost, abundance, and effectiveness in adjusting the pH level. Other acids that are used include Hydrochloric ,Acid, and Phosphoric ,Acid,. As far as bases, some common chemicals that are effective are Sodium ,Hydroxide,, ,Calcium Hydroxide, (Lime), among others.

TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …
TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …

The aqueous pretreatment blend comprises: 1) ferrous sulfate heptahydrate, 2) aluminum sulfate, 3) 85% phosphoric ,acid,, and 4) coagulant. The aqueous ,treatment, blend, which can be used in conjunction with or independent of the pretreatment blend comprises: 1) ,calcium hydroxide,, 2) trimercapto-s-triazine 3) ,calcium, hypochlorite, 4) sodium ...

Wastewater: Industrial Metal Finishing
Wastewater: Industrial Metal Finishing

entering the ,wastewater treatment, system. Industrial waste streams vary considerably in both level of contaminants ... or ,calcium hydroxide, (Ca(OH) 2). ,Wastewater, with a high pH is generally neutralized with sulfuric ,acid, (H. 2. SO. 4 ... using sulfuric ,acid,, with the Oxidation Reduction Potential (ORP) …

Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...
Acid Mine Drainage Reduced with Calcium Hydroxide (Lime ...

W.K. Merriman and Lime Slurry for AMD / mine water ,treatment,: In 2006, there was a need for high quality, low-cost alkalis in the coal industry and began supplying manufactured Lime Slurry (,Calcium Hydroxide,) to both abandoned and active mine sites for pH adjustment and metals removal.

TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …
TREATMENT BLENDS FOR REMOVING METALS FROM WASTEWATER …

The aqueous pretreatment blend comprises: 1) ferrous sulfate heptahydrate, 2) aluminum sulfate, 3) 85% phosphoric ,acid,, and 4) coagulant. The aqueous ,treatment, blend, which can be used in conjunction with or independent of the pretreatment blend comprises: 1) ,calcium hydroxide,, 2) trimercapto-s-triazine 3) ,calcium, hypochlorite, 4) sodium ...

Sewage Or Wastewater Treatment Process. - Tech Process
Sewage Or Wastewater Treatment Process. - Tech Process

Sewage Or ,Wastewater Treatment, Process. Sewage Or ,WasteWater treatment, processes are primarily designed to purify industrial ,wastewater,, household ,wastewater,, and sewage water so that all of this water can be reused and does not harm our environment, its contain physical, biological, and …

Humic acid as waste water treatment - BioAg Europe
Humic acid as waste water treatment - BioAg Europe

In the chemical ,treatment, of ,waste water,, ,calcium hydroxide, or sodium ,hydroxide, are used to aid precipitation of metals. Adding humic ,acid, improves the process and lowers the concentrations of undesirable ions below the permissible limit. As stated above, it is also possible to use humic ,acid, to remove toxic metals from water.

Alkalinity Adjustments in my Wastewater Treatment Plant ...
Alkalinity Adjustments in my Wastewater Treatment Plant ...

While Magnesium ,Hydroxide, is the most difficult to store out of the three options presented, the benefits of alkalinity and pH stability will result in more consistent reaction times and with its self-buffering properties, will maintain more stable environments for ,wastewater treatment, biological organisms to work as efficiently as possible – without killing them.

Removal of Boron from Wastewater by Precipitation of a ...
Removal of Boron from Wastewater by Precipitation of a ...

for the ,treatment, of ,wastewater, containing 50 g L 1 of sulfuric ,acid, and 0.7 g L 1 of boron, and a well-adapted precipitation process consisting of the neutral-ization of boric and sulfuric acids by powdered ,cal-cium hydroxide, is proposed. Experimental results show that under optimal conditions (50 g L …

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