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Alum cannot purify acid wastewater

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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Alum cannot purify acid wastewater
Solutions for the treatment of wastewater with refractory COD
Solutions for the treatment of wastewater with refractory COD

8/10/2019, · OHP is a catalytic wet oxidation process that decomposes organic matter by reaction with hydrogen peroxide (H 2 O 2) in an ,acid, medium under moderate pressure and temperature conditions. The process is started by heating to the operating temperature (~ 120°C), when the strongly oxidizing group [OH] is formed.

Advanced Oxidation Processes in Water/Wastewater Treatment ...
Advanced Oxidation Processes in Water/Wastewater Treatment ...

treatment of actual wastewaters, the, Fenton method has, been also, coupled to, various processes, such as, coagulation, membrane filtration,, and biological oxidation, allowing to degrade more ...

The new incorporation bio-treatment technology of ...
The new incorporation bio-treatment technology of ...

The BA wastewater used as a redox mediator was able to increase the, decolorization, rate of wastewater containing azo dyes. The effects of various operating conditions such as dissolved oxygen, temperature, and pH on microbial, decolorization, were investigated experimentally. At the same time, BA was tested to assess the effects on the change of the Oxidation-Reduction Potential (ORP) values during the, decolorization, …

A Review on Advanced Oxidation Processes for Effective ...
A Review on Advanced Oxidation Processes for Effective ...

The H 2 O 2 incorporation in ozonation especially increases the color removing efficiency but treating drinking water, the oxidation of pesticides, aromatic compounds, and chlorinated solvents mainly applies O 3 /H 2 O 2,50,61 Benefits of O 3 /H 2 O 2 usage include shorter reaction time, allowing higher application of ozone doses and low agglomeration of ozone at the reactor outlet.

Treating refinery spent caustic with electro-oxidation ...
Treating refinery spent caustic with electro-oxidation ...

Oxidation., Oxidation, converts sulfides to harmless sulfate salts and turns mercaptans into sulfonic acids, neither with odor or HSE issues. The process also converts organic acid molecules into either carbon dioxide and water or organic acids with smaller molecular weights that are easily biodegradable.

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

oygen. Oxygen is one of the most abundant elements found in Nature. In its molecular form O 2, oxygen or "dioxygen" is a colourless gas that is relatively insoluble in water (see characteristic constants of gases).. As demonstrated by the oxidation reduction equations, the oxidising capacity of oxygen is heavily dependant on pH and low compared to other oxidants used.

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.

Advanced Oxidation for High Strength Caustic Wastewater ...
Advanced Oxidation for High Strength Caustic Wastewater ...

The ,wastewater, had very ,high, phenol levels (14,000 mg/L), which did not allow for processing through the activated sludge system due to biological toxicity issues. Off-site hazardous waste ,treatment, options were available, but would have cost over $600,000.

Treatment of high-salinity chemical wastewater by ...
Treatment of high-salinity chemical wastewater by ...

Treatment of high,-salinity chemical ,wastewater, by indigenous bacteria--bioaugmented contact ,oxidation,. Qiang Li Key Laboratory of Molecular Microbiology and Technology for Ministry of Education, Nankai University, Tianjin 300071, China.

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

OHP is a catalytic wet ,oxidation, process that decomposes organic matter by reaction with hydrogen peroxide (H 2 O 2) in an ,acid, medium under moderate pressure and temperature conditions. The process is started by heating to the operating temperature (~ 120°C), when the …

A Review on Advanced Oxidation Processes for Effective ...
A Review on Advanced Oxidation Processes for Effective ...

Most of the organic acids excluding acetic and propionic ,acid, 124 are converted to CO 2 at ,high, temperature. Figure 7 depicts the simple ... reaction, ,salt, separation and ... Bhanvase, B. A., & Gumfekar, S. P. Nanomaterials-based advanced oxidation processes for ,wastewater treatment,: A review. Chemical Engineering and Processing ...

Wet Oxidation Technology Based on Organic Wastewater Treatment
Wet Oxidation Technology Based on Organic Wastewater Treatment

Wet oxidation technology is a kind of advanced oxidation techno logy, which. is suitable for the treatment of high concentration, toxic, har mful and biodegradable. organic wastewater. WAO technol...

Wet Air Oxidation of Aqueous Wastes | IntechOpen
Wet Air Oxidation of Aqueous Wastes | IntechOpen

21/10/2014, · Wet air ,oxidation, (WAO) is a key technology in the disposal of industrial and agricultural process wastewaters. It is often used coupled with activated sludge ,treatment, at a ,wastewater treatment, plant (WWTP) as preliminary conversion of toxic and/or non-biodegradable components. The process is based on a ,high, temperature and pressure reaction of the oxidizable materials in water with air or ...

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

The common advanced treatment methods include, “ozone, + BAF”, “Fenton + contact oxidation”, lab, etc. BAF is the core process of advanced treatment at present. The process combination of, “ozone, + BAF” is more and more favored by new projects because of its reasonable process and good operation performance. High salt water treatment

Wet Air Oxidation of Desizing Wastewater from the Textile ...
Wet Air Oxidation of Desizing Wastewater from the Textile ...

Wet air oxidation (WAO) was applied to treat the desizing wastewater from natural and man-made fiber processing in a 2-L autoclave reactor. The range of operating temperatures examined was between 150 and 290 °C. The partial pressure of oxygen ranged from …

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