Welcome to the company ! we have many years of professional experience !
rsdgj@pyzyrsd.com +86 513525609655

solid waste disposal act repealed

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.

Certificate of Honor

Get in touch with us

We will confidentially process your data and will not pass it on to a third party.

solid waste disposal act repealed
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.

Highly efficient treatment of terephthalic acid wastewater ...
Highly efficient treatment of terephthalic acid wastewater ...

remove ,chemical oxygen demand, (,COD,) from the ,wastewater,. Thus, a biodegradation process was used to further treat the effluent of the Fenton-like process. After 12 h of aerobic activated sludge process, 90% ,of COD, was removed, and the pH value of the effluent ranged from 8 to 9. In addition,

Wastewater COD - Why it is Critical in Wastewater Treatment?
Wastewater COD - Why it is Critical in Wastewater Treatment?

Wastewater COD, (,Chemical Oxygen Demand,) is the amount of oxygen necessary to oxidize the organic carbon completely to CO2 and H2O. Some organic chemicals are not completely oxidized. However, ,COD, is measured in approximately 3 hours via oxidation with potassium dichromate (K2Cr2O7) in the presence of Sulfuric ,Acid, and Silver Sulphate.

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.

COD - Elimination by UV-Oxidation in Wastewater Treatment
COD - Elimination by UV-Oxidation in Wastewater Treatment

COD,-elimination in ,wastewater, by batch ,treatment, Degradation of highly concentrated and recalcitrant ,COD, ind ,wastewater, If ,COD, in concentrated ,wastewater, has to be lowered or specifically changed in chemical charcacter, we recommend the optimized batch …

Treatment of terephthalic acid plant wastewater with an ...
Treatment of terephthalic acid plant wastewater with an ...

Anaerobic treatment of terephthalic ,acid, plant ,wastewater, with a lab-scale downflow tubular fixed film reactor achieved 75% of ,COD, removal with a HRT of 3.4 days at 33°C. The raw ,wastewater, from a petrochemical plant was settled and neutralized prior to reactor feeding. The responses to shock loads and to periods without feeding

Chemical oxygen demand - Wikipedia
Chemical oxygen demand - Wikipedia

The most common application of COD is in quantifying the amount of oxidizable pollutants found in surface water (e.g. lakes and rivers) or wastewater. COD is useful in terms of water quality by providing a metric to determine the effect an effluent will have on the …

Textile Dyeing Wastewater Treatment
Textile Dyeing Wastewater Treatment

The current average COD concentration in the pre-treatment is 3000 mg/L. The main pollutants in dyeing/printing are auxiliaries and the residual dyes. The average concentration of COD is 1000 mg/L and the total average concentration is 2000 mg/L after mixing. Pre-treatment of polyester fibers mainly involv es in the reduction with alkali.

Reducing COD in final effluent | NTS chemicals for industry
Reducing COD in final effluent | NTS chemicals for industry

The COD reduction is made by, oxidation in an acid medium of a large part of, the oxidizable substances dissolved in the water to be treated. After the treatment, the reduction of COD can be measured by analysis of the acidified medium is more favorable to continued treatment with a much lower reagent consumption. Product to reduce the effluent COD

Wastewater Treatment Of Coal Chemical Industry - Screen ...
Wastewater Treatment Of Coal Chemical Industry - Screen ...

The biodegradability of the wastewater increases from 0.09 to 0.29, and the COD removal rate changes from 68.81% to 88.63%. Biochemical treatment. Biochemical treatment at home and abroad generally uses anoxic and aerobic biological treatment (A / O process).

Textile Dyeing Wastewater Treatment
Textile Dyeing Wastewater Treatment

The current average ,COD, concentration in the pre-treatment is 3000 mg/L. The main pollutants in dyeing/printing are auxiliaries and the residual dyes. The average concentration of ,COD, is 1000 mg/L and the total average concentration is 2000 mg/L after mixing. Pre-treatment of polyester fibers mainly involv es in the reduction with alkali.

Treatment of terephthalic acid plant wastewater with an ...
Treatment of terephthalic acid plant wastewater with an ...

Anaerobic ,treatment, of terephthalic ,acid, plant ,wastewater, with a lab-scale downflow tubular fixed film reactor achieved 75% ,of COD, removal with a HRT of 3.4 days at 33°C. The raw ,wastewater, from a petrochemical plant was settled and neutralized prior to reactor feeding. The responses to shock loads and to periods without feeding

Highly efficient treatment of terephthalic acid wastewater ...
Highly efficient treatment of terephthalic acid wastewater ...

remove chemical oxygen demand (COD) from the wastewater. Thus, a biodegradation process was used to further treat the effluent of the Fenton-like process. After 12 h of aerobic activated sludge process, 90% of COD was removed, and the pH value of the effluent ranged from 8 to 9. In addition,

Reducing COD in final effluent | NTS chemicals for industry
Reducing COD in final effluent | NTS chemicals for industry

The COD reduction is made by oxidation in an acid medium of a large part of the oxidizable substances dissolved in the water to be treated. After the treatment, the reduction of COD can be measured by analysis of the acidified medium is more favorable to continued treatment with a much lower reagent consumption. Product to reduce the effluent COD

Treatment of Acid Red 73 wastewater by the O3/RSR-BCR ...
Treatment of Acid Red 73 wastewater by the O3/RSR-BCR ...

1/3/2021, · Rotor-stator reactor, (,RS,R), was employed in tandem with bubble column reactor, (,BC,R), to enhance Acid Red 73 (AR73) degradation by ozonation in a simulated dyeing wastewater in this work. It was found that AR73 and COD degradation efficiencies of more than 97% and 30% respectively were achieved in the O 3 /RSR-BCR process.

Semiconductor wastewater treatment-Wastewater treatment
Semiconductor wastewater treatment-Wastewater treatment

Semiconductor ,wastewater treatment,. Wuhan Tianma Electronic Co., Ltd 1) TianMa is LCD manufacturer, ,Wastewater, source from cleaning and etching process, most of contamination are HF , CeO2, ,COD,, NH3, ,acid,, Flow rate: 190 m3/ h. Flow diagram: Influent > EQ > 1st Anoxic > …

Semiconductor wastewater treatment-Wastewater treatment
Semiconductor wastewater treatment-Wastewater treatment

Ammonia Reduction, Toxic ,wastewater, treatment Project Background Wuhan Tianma Electronic Co., Ltd 1) TianMa is LCD manufacturer, ,Wastewater, source from cleaning and etching process, most of contamination are HF , CeO2, ,COD,, NH3, ,acid,, Flow rate: 190 m3/ h

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City