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Treatment of acid coal mine wastewater by neutralization process

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 of acid coal mine wastewater by neutralization process
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.

Wastewater COD removal using sol-gel immobilized humic acid
Wastewater COD removal using sol-gel immobilized humic acid

humic ,acid, Rafik Helles Department of Chemistry, Alaqsa University, Gaza, Palestine. Accepted March 3, 2010 In this study, humic ,acid, which contains both hydrophobic and hydrophilic moieties is successfully entrapped in sol-gel matrix which is used to ,reduce, the ,chemical oxygen demand, (,COD,) of Gaza ,wastewater,. The method

Methods of ammonia removal in anaerobic digestion: a ...
Methods of ammonia removal in anaerobic digestion: a ...

The enhancement with biomass and humic ,acid, did not show any desirable result, with or without pH adjustment. On the other hand, the addition of 10–20 g/L of zeolite showed an increase in methane production. The enhancement effect of zeolite was greater on the pH-unadjusted piggery ,wastewater, (pH 8.1) than on the pH-reduced ,wastewater, (pH 6.5).

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

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.

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

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

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.

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.

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

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

How to Make Wastewater Less Wasteful
How to Make Wastewater Less Wasteful

Pretreating ,wastewater, before its release to a city sewer system is often necessary to lower its ,chemical oxygen demand, (,COD,) and biochemical oxygen demand (BOD), which basically are measures of how fast ,wastewater, will degrade oxygen in fresh water into which it is released.

Treatment on industrial wastewater for removal of surfactants
Treatment on industrial wastewater for removal of surfactants

adjusted with sodium hydroxide and sulphuric ,acid,. The effects of pH on turbidity and ,COD, removal from jar tests for coagulation of ,wastewater, using ferric chloride are shown in Figures 1 and 2. It can be seen that turbidity and ,COD, removals are most effective at a pH range between 7 and 9. The rate of turbidity and ,COD, removal

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.

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 : …

Wastewater Treatment : The Definitive Guide (2019)
Wastewater Treatment : The Definitive Guide (2019)

19/4/2019, · The ,wastewater, from a tannery normally contains a high concentration of ,COD,, has ,acid, PH and high chloride content. Emulsified fat and settable substances in high volumes tend to form a foam, which turns to be harmful to the environment if it is discharged without proper treatment.

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