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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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Advanced Treatment of Pesticide-Containing Wastewater ...
Advanced Treatment of Pesticide-Containing Wastewater ...

Effect of (a) initial ,pH value, with H 2 O 2 dosage of 40 mmol/L, (b) H 2 O 2 dosage, and (c) Fe 2+ dosage with H 2 O 2 dosage of 100 mmol/L on COD removal. General experimental parameters: initial ,pH value, of 5, Fe 2+ dosage of 0.6 mmol/L, and reaction time of 120 min.

Water glossary - Water Treatment and Purification - Lenntech
Water glossary - Water Treatment and Purification - Lenntech

pH,. The ,value, that determines if a substance is ,acid,, neutral or basic, calculated from the number of hydrogen ions present. It is measured on a scale from 0 to 14, on which 7 means the substance is neutral. ,pH, values below 7 indicate that a substance is acidic and ,pH, values above 7 indicate that it is basic. Phase. A state of matter.

Optimize the pH Balance of Cooling Tower Water- Chardon Labs
Optimize the pH Balance of Cooling Tower Water- Chardon Labs

Why Does Unbalanced ,pH, Happen? ,The pH, measures the balance ,of acid, and base in a substance. The more alkaline — baser — a material is, the higher its ,pH,. The neutral ,pH, of cooling tower water is 7.0. For every 1.0 increase in ,pH,, the alkalinity ,increases, by ten times, according to …

ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …
ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …

A number ,of biological, processes can remove metals from ,wastewater, and generate alkalinity (consume acidity), and therefore have potential uses in neutralizing AMD. However, due to the elevation of ,pH, that typically occurs during the removal of metals and sulfate, sulfate-reduction appears to be the most promising bioprocess for AMD ,treatment, and metal recovery.

pH - Wikipedia
pH - Wikipedia

The neutral ,value, of ,the pH, depends on the temperature, being lower than 7 if the temperature ,increases,. ,The pH value, can be less than 0 for very strong acids, or greater than 14 for very strong bases. ,The pH, scale is traceable to a set of standard solutions whose ,pH, is established by international agreement.

Controlling the acid capacity on wastewater treatment plants
Controlling the acid capacity on wastewater treatment plants

The ,acid, capacity is defined as the amount of hydrochloric ,acid, that can be added to a certain amount of ,waste water, until a ,pH, of 4.3 is reached (common abbreviation: KS4.3). Causes ,of acid, capacity deficits in ,wastewater treatment, plants During the ,treatment, process, organic carbon-, nitrogen- and phosphate-containing ,wastewater

Removal of Microbeads from Wastewater Using ...
Removal of Microbeads from Wastewater Using ...

The pH of the influent is a very significant variable which affects the treatment of laundry waste-water considerably, the optimal range being 6.0-8.0. The pH increases from 8.3 to > 10 over the 1st hour of treatment after which the pH remains relatively const.

Factors Affecting BOD5 and TSS Removal from Wastewater ...
Factors Affecting BOD5 and TSS Removal from Wastewater ...

However, the lower limit of ,pH value, of 4 has been identified by Gerardi (2006), stating that an acidic ,pH, can be tolerated by the microorganisms as long as ,the pH value, is not lower than 4. Therefore, the basic ,value, of ,pH, encountered in this case implies that the conditions are …

Removal of Microbeads from Wastewater Using ...
Removal of Microbeads from Wastewater Using ...

The pH of the influent is a very significant variable which affects the treatment of laundry waste-water considerably, the optimal range being 6.0-8.0. The pH increases from 8.3 to > 10 over the 1st hour of treatment after which the pH remains relatively const.

Controlling the acid capacity on wastewater treatment plants
Controlling the acid capacity on wastewater treatment plants

The ,acid, capacity is defined as the amount of hydrochloric ,acid, that can be added to a certain amount of ,waste water, until a ,pH, of 4.3 is reached (common abbreviation: KS4.3). Causes ,of acid, capacity deficits in ,wastewater treatment, plants During the ,treatment, process, organic carbon-, nitrogen- and phosphate-containing ,wastewater

Advanced Treatment of Pesticide-Containing Wastewater ...
Advanced Treatment of Pesticide-Containing Wastewater ...

Effect of (a) initial ,pH value, with H 2 O 2 dosage of 40 mmol/L, (b) H 2 O 2 dosage, and (c) Fe 2+ dosage with H 2 O 2 dosage of 100 mmol/L on COD removal. General experimental parameters: initial ,pH value, of 5, Fe 2+ dosage of 0.6 mmol/L, and reaction time of 120 min.

Factors Affecting BOD5 and TSS Removal from Wastewater ...
Factors Affecting BOD5 and TSS Removal from Wastewater ...

However, the lower limit of ,pH value, of 4 has been identified by Gerardi (2006), stating that an acidic ,pH, can be tolerated by the microorganisms as long as ,the pH value, is not lower than 4. Therefore, the basic ,value, of ,pH, encountered in this case implies that the conditions are …

ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …
ACID MINE DRAINAGE TREATMENT AND METAL REMOVAL …

A number ,of biological, processes can remove metals from ,wastewater, and generate alkalinity (consume acidity), and therefore have potential uses in neutralizing AMD. However, due to the elevation of ,pH, that typically occurs during the removal of metals and sulfate, sulfate-reduction appears to be the most promising bioprocess for AMD ,treatment, and metal recovery.

Treatment of laundry wastewater by biological and ...
Treatment of laundry wastewater by biological and ...

The pH of the wastewater evidently promoted the destruction of the bacteria, as the dead bacterial cells increased the organic content in the wastewater, which consequently increased the COD in …

Treatment of laundry wastewater by biological and ...
Treatment of laundry wastewater by biological and ...

The pH of the wastewater evidently promoted the destruction of the bacteria, as the dead bacterial cells increased the organic content in the wastewater, which consequently increased the COD in …

Biological wastewater treatment and bioreactor design: a ...
Biological wastewater treatment and bioreactor design: a ...

11/12/2019, · ,Biological wastewater treatment, is a biochemical process that is centuries old. Even today, as the quantity of industrial effluents discharged is on the increase and the types of pollutants present in the effluent streams are getting diversified, ,wastewater treatment, processes are being investigated and experimented exorbitantly all over the globe.

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