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Treatment technology of acid wastewater in coal mine

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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Treatment technology of acid wastewater in coal mine
COAGULATION AND FLOCCULATION TREATMENT OF WASTEWATER …
COAGULATION AND FLOCCULATION TREATMENT OF WASTEWATER …

conditions with 72.5% of COD reduction and 94.9% of turbidity reduction. In conclusion, chitosan is an effective coagulant, which can reduce the level of COD and turbidity in textile industry wastewater. Keywords: Chitosan; textile wastewater; coagulation; flocculation; wastewater treatment. 1.0 …

BOD and COD Removal Hydrogen Peroxide - Knowledge ...
BOD and COD Removal Hydrogen Peroxide - Knowledge ...

Hydrogen peroxide (H2O2) has been used to reduce the BOD and COD of industrial wastewaters for many years. While the cost of removing BOD and COD through chemical oxidation with hydrogen peroxide is typically greater than that through physical or biological means, there are nonetheless specific situations which justify the use of hydrogen peroxide.

BOD and COD Removal Hydrogen Peroxide - Knowledge ...
BOD and COD Removal Hydrogen Peroxide - Knowledge ...

Hydrogen peroxide (H2O2) has been used to reduce the BOD and COD of industrial wastewaters for many years. While the cost of removing BOD and COD through chemical oxidation with hydrogen peroxide is typically greater than that through physical or biological means, there are nonetheless specific situations which justify the use of hydrogen peroxide.

5220 CHEMICAL OXYGEN DEMAND (COD) - Standard Methods …
5220 CHEMICAL OXYGEN DEMAND (COD) - Standard Methods …

In a ,COD, analysis, hazardous wastes of mercury, hexavalent chromium, sulfuric ,acid,, silver, and acids are generated. Methods 5220C and D ,reduce, these waste problems but may be less accurate and less representative (5220A.2). 1. Selection of Method

COAGULATION AND FLOCCULATION TREATMENT OF WASTEWATER …
COAGULATION AND FLOCCULATION TREATMENT OF WASTEWATER …

conditions with 72.5% of COD reduction and 94.9% of turbidity reduction. In conclusion, chitosan is an effective coagulant, which can reduce the level of COD and turbidity in textile industry wastewater. Keywords: Chitosan; textile wastewater; coagulation; flocculation; wastewater treatment. 1.0 INTRODUCTION

Study of the coagulation process in wastewater treatment ...
Study of the coagulation process in wastewater treatment ...

In another study, poly ferrous sulphate and PAA coagulants were used in the treatment of restaurant wastewater and 91% COD removal was observed. A physicochemical treatment (coagulation-flocculation) was applied to a slaughterhouse wastewater, using anionic PAA as coagulant aid to improve the settling velocity of the flocs.

Chemical oxygen demand - SlideShare
Chemical oxygen demand - SlideShare

• ,Chemical Oxygen Demand, is an important water quality parameter because, similar to BOD, it provides an index to assess the effect discharged ,wastewater, will have on the receiving environment. Higher ,COD, levels mean a greater amount of oxidizable organic material in the sample, which will ,reduce, dissolved oxygen (DO) levels.

COAGULATION TREATMENT OF WASTEWATER IN PETROLEUM …
COAGULATION TREATMENT OF WASTEWATER IN PETROLEUM …

standards. Chemical coagulation process is an important and convectional method for wastewater treatment to reduce color, COD and TSS. Choice of a suitable coagulant for maximum contaminant removal and reduction in costs is the most important parameters of wastewater treatment. In this study the feasibility of using poly aluminum

Solutions for the treatment of wastewater with refractory COD
Solutions for the treatment of wastewater with refractory COD

The competitive range for Evaporation would be 4-100 kg ,COD,/m 3, as indicated in figure 1.In addition, after 50 kg of ,COD,/m 3, when OHP is no longer able to operate due to an autothermal reaction, that would mean having to cool the reactor which could pose a risk.. Summary. There are different procedures for the treatment of refractory ,COD, in effluents that occur in certain types of industries.

Anaerobic Digestion 101 - WEF Home
Anaerobic Digestion 101 - WEF Home

Anaerobic Digestion 101, November 2, 2017 1:00 – 3:00 pm Eastern WEF Plant Operations and Maintenance Committee

Reduce the effluent COD | NTS chemicals for industry
Reduce the effluent COD | NTS chemicals for industry

Treatment of industrial ,wastewater, : removal of ,chemical oxygen demand, (,COD,), to lower the ,COD, in the effluent of any industry rejecting process water skip to Main Content NTS Chemicals for Industry : …

5220 CHEMICAL OXYGEN DEMAND (COD) - Standard Methods …
5220 CHEMICAL OXYGEN DEMAND (COD) - Standard Methods …

In a ,COD, analysis, hazardous wastes of mercury, hexavalent chromium, sulfuric ,acid,, silver, and acids are generated. Methods 5220C and D ,reduce, these waste problems but may be less accurate and less representative (5220A.2). 1. Selection of Method

COAGULATION TREATMENT OF WASTEWATER IN PETROLEUM …
COAGULATION TREATMENT OF WASTEWATER IN PETROLEUM …

standards. Chemical coagulation process is an important and convectional method for wastewater treatment to reduce color, COD and TSS. Choice of a suitable coagulant for maximum contaminant removal and reduction in costs is the most important parameters of wastewater treatment. In this study the feasibility of using poly aluminum

Reduce the effluent COD | NTS chemicals for industry
Reduce the effluent COD | NTS chemicals for industry

Treatment of industrial ,wastewater, : removal of ,chemical oxygen demand, (,COD,), to lower the ,COD, in the effluent of any industry rejecting process water skip …

High TDS and NaCl problem in effluent treatment
High TDS and NaCl problem in effluent treatment

13/2/2012, · Q. Sir, I ask you one question is ,how to reduce, the TDS of effluent in galvanised industry. TDS is 50,000 ppm so which treatment to give for the reduction of TDS and also ,COD,, BOD,chloride, sulphate, metals. Please guide me which treatment useful for reduction of these parameters. Dharmadhikari Santosh - PUNE, India

Solutions for the treatment of wastewater with refractory COD
Solutions for the treatment of wastewater with refractory COD

The competitive range for Evaporation would be 4-100 kg ,COD,/m 3, as indicated in figure 1.In addition, after 50 kg of ,COD,/m 3, when OHP is no longer able to operate due to an autothermal reaction, that would mean having to cool the reactor which could pose a risk.. Summary. There are different procedures for the treatment of refractory ,COD, in effluents that occur in certain types of industries.

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