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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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wastewater treatment plant construction
pH and Alkalinity | UMass Amherst MWWP
pH and Alkalinity | UMass Amherst MWWP

pH and Alkalinity for Lakes, **For the Mass. Department of Environmental Protection-approved SOP, get the pdf file for lakes or for rivers**. Background Information. ,pH, is a measure of the hydrogen ion concentration of the water as ranked on a scale of 1.0 to 14.0. The lower ,the pH, …

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

By recovering metals from ,wastewater, in a pure form, they can be recycled within the manufacturing process or sold to generate revenue to offset treatment costs. Furthermore, treating so-called 'bleed streams' in this way allows for the recycling of the effluent decreasing the need for fresh water and chemicals such as ,acid,, caustic, etc.

pH Meter Calibration Problems? Check Out These 12 Tips!
pH Meter Calibration Problems? Check Out These 12 Tips!

It plays a role in the taste (,acid, = fresh, neutral = bland, and alkaline = inedible) and the preservation of food. In environmental sampling and monitoring, high or low ,pH, values can be indicative of pollution. In ,wastewater, treatment, ,pH, is regulated as part of discharge permitting and many treatment processes are ,pH, …

Wastewater sterilization: completely new method
Wastewater sterilization: completely new method "vortex ...

As reagent was used 5-10% lime milk solution. ,Value, of ,pH, process was changing in the range of 7,5-9,0. Results of testing represented in table 3. Table 3. Results of neutralization and treatment of ,wastewater, from heavy metals ions by using industrial installation and AVS-100.

A Review on Textile Wastewater Characterization in Bangladesh
A Review on Textile Wastewater Characterization in Bangladesh

1/5/2015, · ,pH, is a measure of the negative logarithm of hydrogen ion concentration in the ,wastewater, and gives an indication of how ,acid, or alkaline the ,wastewater, is. This parameter is important because aquatic life such as most fish can only survive in a narrow ,pH, range between roughly ,pH, 6-9.

Mining Wastewater | liquideffluents
Mining Wastewater | liquideffluents

17/5/2012, · ,pH,. In agreement of the comment that Dharamappa, Sivakumar and Singh (n.d.) made above about the low ,pH of acid, mine drainage, one of the major ,mining wastewater, sources, McElfish and Beier (1990) note that some ,acid, mine drainages can have a ,pH, less than 2.3.

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Acid, alum formulations are aluminum sulfate with 1 to 15-percent free sulfuric ,acid,. Their effectiveness with TOC removal applications is due to the enhanced depression of ,pH,. TOC or NOM reductions depend on the type and dosage of coagulant, ,the pH,, temperature, raw water quality and NOM characteristics.

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

The pickling ,wastewater, is produced during the pickling process of steel; it has strong acidity and contains around 60− 250 g/L of Fe2+.25,26 The Fe2+ of pickling ,wastewater, is generated by the reaction ,of acid, and steel during the pickling process, and ,the pH, range of the pickling ,wastewater, is around 1−2.

Study on Treatment of Acid Scarlet GR Wastewater by ...
Study on Treatment of Acid Scarlet GR Wastewater by ...

Using Ferrate (K2FeO4) and polymer flocculant PAFC (PAFC) Collaborative approach, deal with the ,Acid, Scarlet GR ,Wastewater,. Study the effect of Ferrate dosage, PAFC dosage, Ferrate dosing time, ,Wastewater, initial ,pH Value,. Results show that Ferrate pre-oxidation can significantly ,improve, the Coagulation for the removal ,of Acid, Scarlet GR. when the initial concentration ,of Acid, Scarlet GR is ...

PUBLIC SEWAGE WASTEWATER TREATMENT BY USING ...
PUBLIC SEWAGE WASTEWATER TREATMENT BY USING ...

4.16. ,The pH, result for 0.2 molar 59 4.17 ,The pH, result for 0.1 molar 59 4.18 Effect of EC process on values change of ,pH, and comparison 60 ,the pH, result for 0.2 molar and 0.1 molar 4.19 The Gases result for :0.2 molar 61 4.20 The gases result for 0.1 molar 62 4.21 Comparison of the Gases result for 0.2 molar and 0.1 molar 62 Xl'

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

By recovering metals from ,wastewater, in a pure form, they can be recycled within the manufacturing process or sold to generate revenue to offset treatment costs. Furthermore, treating so-called 'bleed streams' in this way allows for the recycling of the effluent decreasing the need for fresh water and chemicals such as ,acid,, caustic, etc.

Coagulation and Flocculation in Water and Wastewater ...
Coagulation and Flocculation in Water and Wastewater ...

Acid, alum formulations are aluminum sulfate with 1 to 15-percent free sulfuric ,acid,. Their effectiveness with TOC removal applications is due to the enhanced depression of ,pH,. TOC or NOM reductions depend on the type and dosage of coagulant, ,the pH,, temperature, raw …

Liquid liquid extraction and flocculation
Liquid liquid extraction and flocculation

8/4/2015, · Recovery of Carboxylic Acids from Wastewater Using a High Boiling Point Solvent ExtractionExtraction DehydrationDehydration SolventSolvent RecoveryRecovery ,Water, Feed 0.1 – 5 % Mixed Acids Acetic ,Acid, 99%+ Purity Recovered SolventRecovered Solvent Clean UpClean Up AcidAcid RecoveryRecovery Formic ,Acid, 99%+ PurityWater Raffinate < 1,000 ppb Mixed Acids

Textile Dyeing Wastewater Treatment - IntechOpen
Textile Dyeing Wastewater Treatment - IntechOpen

adjust ,the pH value, of the textile dyeing ,wastewater,. The total nitrogen and ammonia nitrogen come from dyes and raw materials, which is not very high, about 10 mg/L. But the urea is needed while using batik techniques. Its total nitrogen is 300 mg/L, which is hard to treat. The phosphorus in the ,wastewater, comes from the phosphor detergents.

Study on Treatment of Acid Scarlet GR Wastewater by ...
Study on Treatment of Acid Scarlet GR Wastewater by ...

Using Ferrate (K2FeO4) and polymer flocculant PAFC (PAFC) Collaborative approach, deal with the ,Acid, Scarlet GR ,Wastewater,. Study the effect of Ferrate dosage, PAFC dosage, Ferrate dosing time, ,Wastewater, initial ,pH Value,. Results show that Ferrate pre-oxidation can significantly ,improve, the Coagulation for the removal ,of Acid, Scarlet GR. when the initial concentration ,of Acid, Scarlet GR is ...

Refinery Wastewater Operations: Challenges Created from ...
Refinery Wastewater Operations: Challenges Created from ...

lower ,the pH, of the water and pull the salts and other contaminants into the water phase. In some cases this ,pH, reduction also aids in breaking emulsions during desalter operations and improves the quality of the water processed at the ,wastewater, plant. As discussed above, opportunity crudes can potentially create processing challenges and they

Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...
Efficient Synthesis of α-FeOOH from Pickling Wastewater in ...

The pickling ,wastewater, is produced during the pickling process of steel; it has strong acidity and contains around 60− 250 g/L of Fe2+.25,26 The Fe2+ of pickling ,wastewater, is generated by the reaction ,of acid, and steel during the pickling process, and ,the pH, range of the pickling ,wastewater, is around 1−2.

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