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

Treatment of acid wastewater from factories

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 acid wastewater from factories
Peracetic Acid for Chlorine Replacement in Wastewa | USP ...
Peracetic Acid for Chlorine Replacement in Wastewa | USP ...

Peracetic Acid is a strong oxidant and disinfectant with oxidation potential higher than that of chlorine or chlorine dioxide. PAA is available in the form of equilibrium mixture which also contains hydrogen peroxide, acetic acid (vinegar) and water as shown by the following equation: CH 3 CO2H + H 2 O 2 <-> CH 3 CO3H + H 2 O

Chemical Oxidation Techniques | EMIS
Chemical Oxidation Techniques | EMIS

Chemical oxidisation involves adding or generating oxidants in the wastewater. A few currently used oxidants include, ozone, (O 3 ),, hydrogen peroxide (H, 2 O 2, ), natriumhypochlorite or bleaching liquor (NaOCl), chlorine dioxide (ClO 2 ), chlorine gas (Cl 2 ), peroxy acetic acid (C, 2 H 4 O 3 ) and, pure oxygen (O 2, ).

water treatment - the oxidants and disinfectants - Degremont®
water treatment - the oxidants and disinfectants - Degremont®

Paracetic acid is also called peroxyacetic acid or ethanoperoxoic acid and, like hydrogen peroxide, belongs to the group of peroxide compounds identified by the presence of two adjacent atoms of oxygen (-O-O-, "peroxy" group). Its ,chemical, formula is written CH 3 COOOH.

How peracetic acid is changing wastewater treatment
How peracetic acid is changing wastewater treatment

In November 2018, the 356 million L per day Maynard C. Stiles Wastewater Treatment Facility started using, peracetic acid, supplied by PeroxyChem—the world’s largest such system. In February of this year, the big German chemical maker Evonik Industries purchased PeroxyChem for $640 million, largely on the strength of its, peracetic acid, business.

Textile Dyeing Wastewater Treatment - IntechOpen
Textile Dyeing Wastewater Treatment - IntechOpen

adjust the pH value of the textile dyeing ,wastewater,. The total ,nitrogen, and ,ammonia nitrogen, come from dyes and raw materials, which is not very high, about 10 mg/L. But the urea is needed while using batik techniques. Its total ,nitrogen, is 300 mg/L, which is hard to treat. The phosphorus in the ,wastewater, comes from the phosphor detergents.

Wastewater Treatment during PCB Fabrication Process | PSPCB
Wastewater Treatment during PCB Fabrication Process | PSPCB

This process produces ,acidic, copper-,containing, waste liquid, copper-,containing wastewater,, and ,ammonia,. (6) Fading: Dissolve the hardened dry film on the copper line with an aqueous solution ,containing, sodium hydroxide or an organic solvent to expose the copper line and wash it with water. This process produces organic ,wastewater, and waste.

Application of Peracetic Acid for Municipal Wastewater ...
Application of Peracetic Acid for Municipal Wastewater ...

Peroxyacetic acid, or peracetic acid (PAA) is gaining interest for, wastewater, disinfection due to its ability to inactivate microbes at costs competitive to other mature disinfection technologies, with secondary benefits of a chemical oxidant.

Growth of Nitrosococcus-Related Ammonia Oxidizing Bacteria ...
Growth of Nitrosococcus-Related Ammonia Oxidizing Bacteria ...

that ,ammonia, oxidation proceeds at pH values of around 4 in engineered reactors ,containing, synthetic wastewaters.2−5 In nitrified urine, the pH dropped to values as low as 2.5.6 The minimal pH value of 2.5 is stunning, as a lower pH limit of 2.9 was demonstrated for ,ammonia, oxidation in ,acidic, tea soils7

Degradation of 4Chlorophenol in Wastewater by Organic ...
Degradation of 4Chlorophenol in Wastewater by Organic ...

As an emerging ,oxidant, and disinfectant, peracetic acid (PAA) has increasingly been used in ,wastewater, treatment and the food and medical industries and has attracted greater research interest.

GLOBAL WATER PATHOGEN PROJECT PART FOUR. …
GLOBAL WATER PATHOGEN PROJECT PART FOUR. …

MANAGEMENT OF RISK FROM EXCRETA AND ,WASTEWATER CHEMICAL, DISINFECTANTS Tamar Kohn Ecole Polytechnique Federale de Lausanne Lausanne ... widely applied ,chemical oxidant,. 1.1 Free Chlorine ... hypochlorous ,acid, (HOCl) and its conjugated base, hypochlorite (OCl-). HOCl is a weak ,acid, (pKa=7.54 at 25°C; Morris, 1966) and strong ,oxidant, (E=1.49 ...

New concepts of microbial treatment processes for the ...
New concepts of microbial treatment processes for the ...

Abstract. Many countries strive to reduce the emissions of ,nitrogen, compounds (,ammonia,, nitrate, NO x) to the surface waters and the atmosphere.Since mainstream domestic ,wastewater, treatment systems are usually already overloaded with ,ammonia,, a dedicated ,nitrogen, removal from concentrated secondary or industrial wastewaters is often more cost-effective than the disposal of such wastes to ...

Reactivity of Peracetic Acid with Organic Compounds: A ...
Reactivity of Peracetic Acid with Organic Compounds: A ...

15/6/2020, · ABSTRACT: As an emerging oxidant and disinfectant, peracetic acid (PAA) has increasingly been used in wastewater treatment and the food and medical industries and has attracted greater research interest. To better understand reactions initiated by PAA, this paper is …

Catalytic oxidation and spectroscopic analysis of ...
Catalytic oxidation and spectroscopic analysis of ...

The catalyst was used for the catalytic oxidation of simulated acid chrome blue K ,wastewater,. The COD removal efficiency and decolor efficiency by catalytic oxidation are 72.0% and 87.8%, respectively, at the condition of ,wastewater,'s COD is 2,418 mg/L, the optimum pH value is 1.2, the dosage of chlorine dioxide is 1,200 mg/L, the dosage of activated carbon-MnO(2) catalyst is 4 g by reacting 50 min.

Control Strategies for PAA Wastewater Disinfection at ...
Control Strategies for PAA Wastewater Disinfection at ...

peroxide, acetic acid, (vine,gar) and water, and has been used in a variety of industries, including the medical and food safety markets, as a disinfectant and sterilizing agent. While its use as a wastewater disinfectant is relatively new in the US municipal market, its effectiveness on controlling bacterial microorganisms is well-known4.

Advanced Oxidation Processes (AOPs) in Wastewater ...
Advanced Oxidation Processes (AOPs) in Wastewater ...

18/9/2015, · ,Advanced oxidation, processes (AOPs) were first proposed in the 1980s for drinking water treatment and later were widely studied for treatment of different wastewaters. During the AOP treatment of ,wastewater,, hydroxyl radicals (OH·) or sulfate radicals (SO4 ·−) are generated in sufficient quantity to remove refractory organic matters, traceable organic contaminants, or certain inorganic ...

CN105906073A - Oxidant for treating chemical wastewater ...
CN105906073A - Oxidant for treating chemical wastewater ...

The invention provides an ,oxidant, for treating ,chemical wastewater, and a preparation method thereof. The ,oxidant, is prepared from the following components: a secondary mixed solution, peroxide, water, and citric acid or citric acid water soluble salt, wherein the secondary mixed solution is prepared from a primary mixed solution and yeast lyase; the peroxide is a mixture of hydrogen peroxide ...

fundamental concepts on the oxidation-reduction chemical ...
fundamental concepts on the oxidation-reduction chemical ...

variation of the oxidation reduction potential according to the pH. Some partial oxidation reduction reactions involve water molecules H 2 O, protons H + and hydroxyl ions OH – for maintaining electrical charges in equilibrium. In this case, the oxidation reduction potential will depend on the pH.

(PDF) Wastewater Disinfection with Peracetic Acid
(PDF) Wastewater Disinfection with Peracetic Acid

Peracetic acid (PAA), has attracted growing attention as an alternative, oxidant, and disinfectant in, wastewater, treatment due to the increased demand to reduce chlorine usage and control ...

2350 OXIDANT DEMAND/REQUIREMENT - Standard Methods For …
2350 OXIDANT DEMAND/REQUIREMENT - Standard Methods For …

Oxidants are added to water supplies and wastewater primarily for disinfection. Other beneficial uses include slime removal, oxidation of undesirable inorganic species (e.g., ferrous ion, reduced manganese, sulfide, and ammonia) and oxidation of organic constituents (e.g., taste- …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City