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Corrosion of metal by acid waste water

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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Corrosion of metal by acid waste water
(PDF) Advanced oxidative degradation processes ...
(PDF) Advanced oxidative degradation processes ...

The presence of Mn 2+ ions has significantly increased phenol ,degradation, and reduced the consumption of ozone compared to conventional processes (molecular ozone and hydroxyl radicals). The authors obtained a reduction on the ,organic, load (TOC) of 63% for pH 3 using the metal Mn (II) in just 7 minutes of treatment.

Durability of Ag- T i O 2 Photocatalysts Assessed for the ...
Durability of Ag- T i O 2 Photocatalysts Assessed for the ...

The effect of recycling the 0.35 Ag-T i O 2 photocatalyst on the photocatalytic ,degradation rate, of DCA is shown in Figure 3(a) and once again employing the washing technique in Figure 3(b). The reaction conditions were the same as described previously for the experiment with pure P25 T i O 2.

Chinese Journal of Chemical Physics
Chinese Journal of Chemical Physics

Photocatalytic ,degradation, of ,organic, pollutants has become a hot research topic because of its low energy consumption and environmental-friendly characteristics. Bismuth oxide (Bi2O3) nanocrystals with a bandgap ranging between 2.0-2.8 eV has attracted increasing attention due to high activity of photodegradation of ,organic, pollutants by utilizing visible light.

Nuclear wastewater decontamination by 3D-Printed ...
Nuclear wastewater decontamination by 3D-Printed ...

Such functional 3D-printing has been demonstrated for example with graphene and carbon nanotubes to form conductive objects, 22 ceramic nanoparticles for ,piezoelectric, applications, 23 and metal–,organic, frameworks to form gas adsorbing structures. 24 Monolithic zeolite-containing structures have been produced and used in dry applications such as gas adsorption, 25 gas separation, 26,27 and ...

Recent organic pollution and its biosensing methods ...
Recent organic pollution and its biosensing methods ...

At the peak of ,organic, pollution in advanced countries in the 1960s, the official or conventional ,method, for BOD was limited to the BOD 5 ,method,. 21,60 The BOD 5 ,method, has several problems that prevent it satisfying the needs for practical use in ,wastewater, control, i.e., this ,method, is time-consuming, tedious, and requires a high degree of proficiency from the person conducting the test.

WO2014158456A1 - Device and methods of using a ...
WO2014158456A1 - Device and methods of using a ...

Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a ,piezoelectric, microbalance sensor. A particular embodiment of a ,piezoelectric, microbalance sensor ...

WO2014158456A1 - Device and methods of using a ...
WO2014158456A1 - Device and methods of using a ...

Methods for monitoring scale deposition in a water-containing industrial process are disclosed. In certain embodiments, the water-containing industrial process is an aqueous cooling system. In certain embodiments, the methods incorporate fluorometric monitoring and control techniques along with a ,piezoelectric, microbalance sensor. A particular embodiment of a ,piezoelectric, microbalance sensor ...

Polymer-Based Membranes for Oily Wastewater Remediation
Polymer-Based Membranes for Oily Wastewater Remediation

Chemical oxygen demand (COD) was based on the oxidation of ,organic, materials by an excess of potassium dichromate (K2Cr2O7), in ,acidic, medium and boiling, in the presence of silver sulfate and mercury sulfate. COD was measured by a spectrophotometer of the type (DR 1900 LANGE HACH, Duesseldorf, Germany).

Thin Coatings of α‐ and β‐Bi2O3 by Ultrasonic Spray ...
Thin Coatings of α‐ and β‐Bi2O3 by Ultrasonic Spray ...

The reaction of β‐Bi 2 O 3 with CO 2, either formed in situ upon release during the photodegradation of ,organic, compounds or as a result of contact with CO 2(aq) under light irradiation, was discussed in previous studies on β‐Bi 2 O 3 particles. 3, 50-53 In contrast, XRD studies of the samples α‐Bi 2 O 3 ‐1 and β‐Bi 2 O 3 ‐1 after the ,degradation, experiments do not show any ...

(PDF) Advanced oxidative degradation processes ...
(PDF) Advanced oxidative degradation processes ...

The presence of Mn 2+ ions has significantly increased phenol ,degradation, and reduced the consumption of ozone compared to conventional processes (molecular ozone and hydroxyl radicals). The authors obtained a reduction on the ,organic, load (TOC) of 63% for pH 3 using the metal Mn (II) in just 7 minutes of treatment.

Recent organic pollution and its biosensing methods ...
Recent organic pollution and its biosensing methods ...

At the peak of ,organic, pollution in advanced countries in the 1960s, the official or conventional ,method, for BOD was limited to the BOD 5 ,method,. 21,60 The BOD 5 ,method, has several problems that prevent it satisfying the needs for practical use in ,wastewater, control, i.e., this ,method, is time-consuming, tedious, and requires a high degree of proficiency from the person conducting the test.

Water Soluble Polymer Flocculants: Synthesis ...
Water Soluble Polymer Flocculants: Synthesis ...

A comprehensive review of pH‐responsive polymers can be found elsewhere. 125 Yu et al. used pH‐responsive HM‐alginate/chitosan complexes to selectively flocculate pollutants from synthetic ,wastewater,. 126 At ,acidic, pH (below 4), the amphiphilic HM‐alginate was negatively charged and dispersed in water as a colloidal phase, attracting Sudan IV (a hydrophobic dye) toward its …

Durability of Ag- T i O 2 Photocatalysts Assessed for the ...
Durability of Ag- T i O 2 Photocatalysts Assessed for the ...

The effect of recycling the 0.35 Ag-T i O 2 photocatalyst on the photocatalytic ,degradation rate, of DCA is shown in Figure 3(a) and once again employing the washing technique in Figure 3(b). The reaction conditions were the same as described previously for the experiment with pure P25 T i O 2.

Polymer-Based Membranes for Oily Wastewater Remediation
Polymer-Based Membranes for Oily Wastewater Remediation

Chemical oxygen demand (COD) was based on the oxidation of ,organic, materials by an excess of potassium dichromate (K2Cr2O7), in ,acidic, medium and boiling, in the presence of silver sulfate and mercury sulfate. COD was measured by a spectrophotometer of the type (DR 1900 LANGE HACH, Duesseldorf, Germany).

1. Introduction
1. Introduction

The IBP ,degradation, sharply increased with an increasing catalyst dose from 0.2 until an optimal value of 0.5 g L-1. A further increase of magnesium ferrite concentration up to 1.0 g L-1 was affected positively only at the first 20 minutes. Intrestingly, IBP ,degradation, efficiency were equal for the catalytic reaction time of 30-40 min.

Nuclear wastewater decontamination by 3D-Printed ...
Nuclear wastewater decontamination by 3D-Printed ...

Such functional 3D-printing has been demonstrated for example with graphene and carbon nanotubes to form conductive objects, 22 ceramic nanoparticles for ,piezoelectric, applications, 23 and metal–,organic, frameworks to form gas adsorbing structures. 24 Monolithic zeolite-containing structures have been produced and used in dry applications such as gas adsorption, 25 gas separation, 26,27 and ...

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