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

Treatment of acidic copper containing wastewater by sodium hydrosulfide

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.

Treatment of acidic copper containing wastewater by sodium hydrosulfide
Pharmaceuticals of Emerging Concern in Aquatic Systems ...
Pharmaceuticals of Emerging Concern in Aquatic Systems ...

In the last few decades, pharmaceuticals, credited with saving millions of lives, have emerged as a new class of environmental contaminant. These compounds can have both chronic and acute harmful effects on natural flora and fauna. The presence of pharmaceutical contaminants in ground waters, surface waters (lakes, rivers, and streams), sea water, ,wastewater treatment, plants (influents and ...

Treatment of wastewater containing 2-methoxyphenol by ...
Treatment of wastewater containing 2-methoxyphenol by ...

15/1/2020, · The experimental results show that the degradation ratio of MOP can reach 93.1% under this condition. In addition, the contribution rate of each factor to the response value was obtained by ,calculation,. The order of contribution of each factor to the degradation ratio is temperature > concentration of PS ≈ pH.

Degradation of Acid Red 73 by Activated Persulfate in a ...
Degradation of Acid Red 73 by Activated Persulfate in a ...

cavitation. Various parameters such as temperature, initial pH, sodium persulfate ,dosage,, catalyst ,dosage,, initial concentration of AR73, ultrasonic frequency and power, and free-radical quenching agents were investigated. The optimal conditions were determined to be AR73 50 mg/L, PS 7.5 mmol/L, catalyst ,dosage, 2 g/L, ultrasound frequency 80 kHz,

(PDF) Water and Wastewater Calculations Manual 2nd Ed Shun ...
(PDF) Water and Wastewater Calculations Manual 2nd Ed Shun ...

Water and ,Wastewater, Calculations Manual 2nd Ed Shun Dar Lin. Hardi Suhardian. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 25 Full PDFs related to this paper. READ PAPER. Water and ,Wastewater, Calculations Manual 2nd Ed Shun Dar Lin. Download.

Water Treatment Coagulation | Water Treatment | Waste ...
Water Treatment Coagulation | Water Treatment | Waste ...

If no alkali is added then the acidity of 1.0 mg/L alum will lower the natural alkalinity of the raw water by 0.45 mg/L. This lowering of natural alkalinity is desirable in most cases as the pH range for coagulation of turbid waters being 5.7 – 8.0.

(PDF) Flow Equalization and Neutralization
(PDF) Flow Equalization and Neutralization

The acidic ,wastewater, can be neutralised by ,alkali, reagents like caustic soda or lime. The simulator was designed to operate in both manual and automatic modes during the neutralisation process.

GPS-X Technical Reference - v8.0 - Water and Wastewater ...
GPS-X Technical Reference - v8.0 - Water and Wastewater ...

GPS-X Technical Reference, - v8.0 ...

Design Manual: Municipal Wastewater Disinfection
Design Manual: Municipal Wastewater Disinfection

Hypobromous ,acid, is a weak ,acid, and will dissociate in accordance with: HOBr =• H+ + OBr" KA = [H+][OBr~]/[HOBr] (5-19) Using thermodynamic data on hypobromous ,acid, and hypobromite (51), the following relationship for KA may be derived for temperatures in the range of normal operation: KA = 5.24 x 10~6 exp (-2265/T) (5-20) In general, the ...

Electroplating Wastewater Treatment_Method
Electroplating Wastewater Treatment_Method

Wastewater, is not categorized into categories. The chemicals used in each sort of ,wastewater, are highly targeted in order to reduce costs.As a result, the ,wastewater, of each category is poorly treated, and the integrated water is still not up to standard. 2. Use plenty of lime to …

HJ 2048-2015 PDF. - chinesestandard.net
HJ 2048-2015 PDF. - chinesestandard.net

6.3.1.2 ,acid, and ,alkali wastewater, should be ,acid, and ,alkali, pretreatment pretreatment, pH adjusted to 6 ~ 9 before they can enter the integrated processing system. 6.3.1.3 Cyanide-containing ,wastewater, should be treated separately at the production facility for discharge to meet national or local standards,

Fish Meal - Food and Agriculture Organization
Fish Meal - Food and Agriculture Organization

OTHER ,METHODS, OF MANUFACTURE. Of the other processes used, the most well known is the heat transfer method, htm, developed in the USA, where oil added to a slurry of the raw material acts as a heat transfer medium. In some other ,methods, the presses are replaced by centrifuges, and in others the oil is removed by solvent extraction.

Physical-chemical Wastewater Treatment Plant Design
Physical-chemical Wastewater Treatment Plant Design

----- • Sample 3 = 110 mg/1 as Ca(OH)2. • Sample 4 = 130 mg/1 as Ca(OH)2. One milligram per liter phosphorus was achieved at a pH of 9.1-9.5. The lime ,dosage, required for optimum solids removal varied from 100 to 300 mg/1.

Degradation of Acid Red 73 by Activated Persulfate in a ...
Degradation of Acid Red 73 by Activated Persulfate in a ...

cavitation. Various parameters such as temperature, initial pH, sodium persulfate ,dosage,, catalyst ,dosage,, initial concentration of AR73, ultrasonic frequency and power, and free-radical quenching agents were investigated. The optimal conditions were determined to be AR73 50 mg/L, PS 7.5 mmol/L, catalyst ,dosage, 2 g/L, ultrasound frequency 80 kHz,

Formulation of Corrosion Inhibitors | IntechOpen
Formulation of Corrosion Inhibitors | IntechOpen

28/3/2019, · Inhibitor ,dosage, Inhibition efficiency Metals; Advanced pyridine ,alkali,: 12% HCl + 5% HF, 40°C: 0.2% <0.1 mm/a: Carbon steel: 4-Methylpyridine residual: 10% HCl + 6% HF, 30°C: 0.2% <0.1 mm/a: Carbon steel: Nitroaniline: 2–3 mol/L HNO 3: 0.002 mol/L: High efficiency: Copper: 1-Phenyl-3-thioformamide: 20–35% HNO 3: 0.0005%: High efficiency: Aluminum: Reactant of amine and alkynol

Purolite Ion Exchange Design Calculation Programs ...
Purolite Ion Exchange Design Calculation Programs ...

These effectively remove mineral acids which can be regenerated with ,alkali, using only an excess of 20% over theory in many cases. On the other hand strong base resins often require over 50% stoichiometric excess ,alkali, for effective regeneration.

HJ 2056-2018 PDF. - Chinese Standard
HJ 2056-2018 PDF. - Chinese Standard

(1) The type and ,dosage, of coagulant should be determined according to the test of ,wastewater, quality and pollutant properties; (2) It is advisable to use integrated preparation and dosing equipment for coagulant dosing; (3) The coagulation process should be equipped with pH automatic control equipment and coupled with the dosing metering pump;

Electroplating Wastewater Treatment_Method
Electroplating Wastewater Treatment_Method

Wastewater, is not categorized into categories. The chemicals used in each sort of ,wastewater, are highly targeted in order to reduce costs.As a result, the ,wastewater, of each category is poorly treated, and the integrated water is still not up to standard. 2. Use plenty of lime to make the water clear and reduce costs.

Design Manual: Municipal Wastewater Disinfection
Design Manual: Municipal Wastewater Disinfection

Hypobromous ,acid, is a weak ,acid, and will dissociate in accordance with: HOBr =• H+ + OBr" KA = [H+][OBr~]/[HOBr] (5-19) Using thermodynamic data on hypobromous ,acid, and hypobromite (51), the following relationship for KA may be derived for temperatures in the range of normal operation: KA = 5.24 x 10~6 exp (-2265/T) (5-20) In general, the equilibrium constant for HOBr dis- sociation is lower than …

Wastewater Models | GPS-X - Hydromantis
Wastewater Models | GPS-X - Hydromantis

The list of the available unit processes includes different sources of raw water (river, lake, ground, municipal, brackish and sea), chemical dosing objects (,acid, feed, ,alkali, feed, nutrients, flocculants and polymers), equalization tank, sedimentation basin, bioreactor, neutralization tank, lime softening, dissolved air floatation, cation exchange, anion exchange, Reverse Osmosis, decarbonation, …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City