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Iron treatment of NO3 in acid 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.

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Iron treatment of NO3 in acid wastewater
Fluoride Wastewater Treatment by Adsorption onto ...
Fluoride Wastewater Treatment by Adsorption onto ...

Data were evaluated with the aim of developing an alternative treatment technology for washing wastewater arising from an Aluminum can production plant. Kinetics and adsorption isotherms data have been also produced Sorption is greatly affected by pH and the best condition for fluoride removal are obtained at pH 5–6 and alkalinity competes successfully with fluoride ions for the exchange sites.

Fluoride Removal - Water and Wastewater Information
Fluoride Removal - Water and Wastewater Information

Pilot-scale ,fluoride,-,containing wastewater treatment, by the ballasted flocculation process A pilot-scale ballasted flocculation system was used to remove ,fluoride, from one type of industrial ,wastewater,.

Semiconductor Wastewater Treatment - Ovivo
Semiconductor Wastewater Treatment - Ovivo

Fluoride discharge limit >10 ppm. Some examples of Ovivo semiconductor wastewater treatment solutions: Treatment of CMP and Backgrind Water. CMP is an essential process in semiconductor fabrication. The resultant wastewater can be treated by flocculation and sedimentation to …

Wastewater treatment for semiconductor production
Wastewater treatment for semiconductor production

Before waste water can be discharged or reused, hydrofluoric acid and its salts must be removed. The waste water is treated by precipitation and flocculation. The fluoride contained is precipitated as calcium fluoride by the addition of lime milk or calcium chloride.

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces copper-,containing wastewater,, sulfuric ,acid, mist. (10) Soldermask (Green): Its function is to prevent bridging during wave soldering, improve soldering quality and save solder. It is also a permanent protective layer for printed boards that protects against moisture, corrosion, mildew and mechanical abrasion.

Acid Fluoride-containing Wastewater Treatment Project in ...
Acid Fluoride-containing Wastewater Treatment Project in ...

The reconstruction project of ,acid fluoride,-,containing wastewater treatment, in rare earths refinery was introduced. The ,wastewater, was characterized by complex composition, strong acidity, and high content of ,fluoride, with contents of many kinds of heavy metal ion. In the pretreatment process, natural limestone was used for neutralization and precipitation, and then the lime cream and PAM were ...

Fluoride Removal (Water and Wastewater) Articles
Fluoride Removal (Water and Wastewater) Articles

Pilot-scale ,fluoride,-,containing wastewater treatment, by the ballasted flocculation process A pilot-scale ballasted flocculation system was used to remove ,fluoride, from one type of industrial ,wastewater,.

Method of fluoride-containing wastewater treatment ...
Method of fluoride-containing wastewater treatment ...

A method of ,fluoride,-,containing wastewater treatment,, comprising: performing a primary fluoric ion concentration detection process upon ,wastewater,, the primary fluoric ion concentration detection process comprising: providing a buffer solution having a stable pH value; adding a fixed amount of the ,wastewater, into the buffer solution; detecting a fluoric ion concentration in the buffer solution ...

Acid Fluoride-containing Wastewater Treatment Project in ...
Acid Fluoride-containing Wastewater Treatment Project in ...

The reconstruction project of ,acid fluoride,-,containing wastewater treatment, in rare earths refinery was introduced. The ,wastewater, was characterized by complex composition, strong acidity, and high content of ,fluoride, with contents of many kinds of heavy metal ion. In the pretreatment process, natural limestone was used for neutralization and precipitation, and then the lime cream and PAM were ...

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces copper-,containing wastewater,, sulfuric ,acid, mist. (10) Soldermask (Green): Its function is to prevent bridging during wave soldering, improve soldering quality and save solder. It is also a permanent protective layer for printed boards that protects against moisture, corrosion, mildew and mechanical abrasion.

Wastewater treatment for semiconductor production
Wastewater treatment for semiconductor production

Before waste water can be discharged or reused, hydrofluoric acid and its salts must be removed. The waste water is treated by precipitation and flocculation. The fluoride contained is precipitated as calcium fluoride by the addition of lime milk or calcium chloride.

Fluoride Removal (Water and Wastewater) Articles
Fluoride Removal (Water and Wastewater) Articles

Pilot-scale ,fluoride,-,containing wastewater treatment, by the ballasted flocculation process A pilot-scale ballasted flocculation system was used to remove ,fluoride, from one type of industrial ,wastewater,.

Method of fluoride-containing wastewater treatment ...
Method of fluoride-containing wastewater treatment ...

A method of ,fluoride,-,containing wastewater treatment,, comprising: performing a primary fluoric ion concentration detection process upon ,wastewater,, the primary fluoric ion concentration detection process comprising: providing a buffer solution having a stable pH value; adding a fixed amount of the ,wastewater, into the buffer solution; detecting a fluoric ion concentration in the buffer solution ...

Fluoride Removal - Water and Wastewater Information
Fluoride Removal - Water and Wastewater Information

Pilot-scale ,fluoride,-,containing wastewater treatment, by the ballasted flocculation process A pilot-scale ballasted flocculation system was used to remove ,fluoride, from one type of industrial ,wastewater,.

The effectiveness of calcium hydroxide and sodium ...
The effectiveness of calcium hydroxide and sodium ...

for reducing ,fluoride, in hazardous ,wastewater, Jenny Anna Margaretha, Candra Irawan, Poppy Sri Lestari, Azkiyah Rahma and Erizal Tanjung Abstract The use of coagulant in Hazardous ,wastewater treatment containing Fluoride, can decrease the pH ,of waste water,, so calcium hydroxide and sodium hydroxide compound has been added in the process which

Fluoride Wastewater Treatment by Adsorption onto ...
Fluoride Wastewater Treatment by Adsorption onto ...

Data were evaluated with the aim of developing an alternative treatment technology for washing wastewater arising from an Aluminum can production plant. Kinetics and adsorption isotherms data have been also produced Sorption is greatly affected by pH and the best condition for fluoride removal are obtained at pH 5–6 and alkalinity competes successfully with fluoride ions for the exchange sites.

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces copper-,containing wastewater,, sulfuric ,acid, mist. (10) Soldermask (Green): Its function is to prevent bridging during wave soldering, improve soldering quality and save solder. It is also a permanent protective layer for printed boards that protects against moisture, corrosion, mildew and mechanical abrasion.

A Novel Recovery Method for Treating Wastewater Containing ...
A Novel Recovery Method for Treating Wastewater Containing ...

A new treatment method for wastewater containing concentrated fluoride and fluoroborate ions by hydrothermal treatment were developed. The treatment is an earth-mimetic method to produce natural minerals by hydrothermal treatment with Ca(OH) 2 as a mineralizer.

Semiconductor Wastewater Treatment - Ovivo
Semiconductor Wastewater Treatment - Ovivo

Fluoride discharge limit >10 ppm. Some examples of Ovivo semiconductor wastewater treatment solutions: Treatment of CMP and Backgrind Water. CMP is an essential process in semiconductor fabrication. The resultant wastewater can be treated by flocculation and sedimentation to …

A Novel Recovery Method for Treating Wastewater Containing ...
A Novel Recovery Method for Treating Wastewater Containing ...

A new treatment method for wastewater containing concentrated fluoride and fluoroborate ions by hydrothermal treatment were developed. The treatment is an earth-mimetic method to produce natural minerals by hydrothermal treatment with Ca(OH) 2 as a mineralizer.

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