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

How to reduce COD in 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.

Certificate of Honor

Get in touch with us

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

How to reduce COD in acid wastewater
L4. Biological wastewater treatment
L4. Biological wastewater treatment

Wastewater,: is simply that part of the water supply to the community or to the industry which has been used for different purposes and has been mixed with solids either suspended or dissolved. ,Wastewater, is 99.9% water and 0.1% solids. The main task in ,treating, the ,wastewater, is simply to remove most or all of this 0.1% of solids.

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

Terephthalic acid (TA) is widely used to manufacture polyester fibers, PET-film, medicines, dyes, synthetic per-fumes and other chemical compounds. TA is one of the main organic components of purified terephthalic acid (PTA) manufacturing wastewater [1,2], considered toxic and an endocrine disruptor [2,3]. Wastewater from the manufac-

Trichloroisocyanuric acid - Wikipedia
Trichloroisocyanuric acid - Wikipedia

Trichloroisocyanuric acid is an organic compound with the formula (C 3 Cl 3 N 3 O 3). It is used as an industrial disinfectant , bleaching agent and a reagent in organic synthesis . [1] [2] [3] This white crystalline powder, which has a strong " chlorine odour," is sometimes sold in tablet or granule form for domestic and industrial use.

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

Its chemical formula is written, CH 3 COOOH., Paracetic acid is a colourless liquid with a sharp odour and can be mixed with water in any proportion. This compound is unstable and does not exist in a pure state. It is available as an aqueous solution mixed with acetic acid and hydrogen peroxide according to the following equilibrium:

water treatment – removing hardness (calcium and magnesium ...
water treatment – removing hardness (calcium and magnesium ...

And if amounts of reagent are precisely adjusted, the water’s alkalinity will be reduced to the theoretical solubility applicable to the CaCO 3 + Mg (OH) 2 system which ranges from 2 to 3°F under normal temperature and concentration conditions.. However, this limit M-alk. figure may be increased in practice when dissolved impurities are present (e.g. organic acids, ammonium, phosphates, etc.).

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

By far, the most commonly used commercial process for treating acid mine drainage is lime (CaO) precipitation in a high-density sludge (HDS) process. In this application, a slurry of lime is dispersed into a tank containing acid mine drainage and recycled sludge to increase water pH to about 9.

Waste Water Treatment: Electrocoagulation Technology ...
Waste Water Treatment: Electrocoagulation Technology ...

The classical physico-,chemical, treatment processes that are used for the ,wastewater, treatment is filtration, air stripping, ion-exchange, ,chemical, precipitation, ,chemical, oxidation, carbon adsorption, ultrafiltration, reverse osmosis, electrodialysis, volatilization and gas stripping.

Treatment Technologies for Organic Wastewater | IntechOpen
Treatment Technologies for Organic Wastewater | IntechOpen

17/11/2011, · CWAO makes a promising technology for the treatment of refractory organic pollutants (phenolic compounds, carboxylic acids, N-containing compounds) in industrial wastewaters, such as Olive oil mill ,wastewater,, Kraft bleaching plant effluents, Coke plant ,wastewater,, Textile ,wastewater,, Alcohol-distillery ,wastewater,, Landfill leachate, Pulp and paper bleaching liquor, Heavily organic halogen polluted industrial ,wastewater, …

Understanding Laboratory Wastewater Tests: I. ORGANICS ...
Understanding Laboratory Wastewater Tests: I. ORGANICS ...

14/10/2010, · A 1L ,wastewater, sample is acidified (typically using hydrochloric or sulfuric ,acid,) to a pH = 2. The acidified ,wastewater, sample is then transferred to a 2L separatory funnel. 30 mL of the extraction ,chemical, (e.g., n-Hexane) are then added to the funnel and …

Characteristics of Wastewater | Wastewater Management
Characteristics of Wastewater | Wastewater Management

For example, glycine, commonly present in wastewater has a chemical formula [CH 2 (NH 2) COOH]. Its ThOD can be analytically determined by assuming the following steps in the reactions: (i) In the first step, carbon is converted to CO 2 and nitrogen is converted to ammonia.

(PDF) Acid Mine Drainage Control and Treatment
(PDF) Acid Mine Drainage Control and Treatment

Hydrated lime is a comm only-used ,chemical for treating, AMD. It is sold as a powder that tends to be hydrophobic, and extensive mechanical mixing is required to disperse it in water.

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

14/6/2004, · By far, the most commonly used commercial process for treating acid mine, drainage, is lime (CaO) precipitation in a high-density, sludge, (HDS) process. In this application, a slurry of lime is dispersed into a tank containing acid mine, drainage, and recycled, sludge, to increase water pH to …

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in wastewater, it rapidly hydrolyzes to hydrochloric acid (HCl) and hypochlorous acid (HOCl) as shown in the following chemical equation:, Cl 2 +H 2 O ↔ H + +Cl - +HOCl BB4

Biological and Chemical Wastewater Treatment Processes ...
Biological and Chemical Wastewater Treatment Processes ...

2/12/2014, · When chlorine gas is dissolved in wastewater, it rapidly hydrolyzes to hydrochloric acid (HCl) and hypochlorous acid (HOCl) as shown in the following chemical equation: Cl 2 +H 2 O ↔ H + +Cl - …

Wastewater Chemicals | Industrial Water Treatment ...
Wastewater Chemicals | Industrial Water Treatment ...

Formula: (C3H5NO)n Other Names: Acrylamide Resin, Acrylamide Gel Solution, PAM Appearance: White p... Sodium Metabisulfite Other Names: sodium pyrosulfite Appearance: white powder Molecular formula: Na2S2O5 Molecular wei...

Wastewater Chemicals | Industrial Water Treatment ...
Wastewater Chemicals | Industrial Water Treatment ...

Formula,: (C3H5NO)n Other Names: Acrylamide Resin, Acrylamide Gel Solution, PAM Appearance: White p... Sodium Metabisulfite Other Names: sodium pyrosulfite Appearance: white powder Molecular ,formula,: Na2S2O5 Molecular wei...

water treatment – removing hardness (calcium and magnesium ...
water treatment – removing hardness (calcium and magnesium ...

And if amounts of reagent are precisely adjusted, the water’s alkalinity will be reduced to the theoretical solubility applicable to the CaCO 3 + Mg (OH) 2 system which ranges from 2 to 3°F under normal temperature and concentration conditions.. However, this limit M-alk. figure may be increased in practice when dissolved impurities are present (e.g. organic acids, ammonium, phosphates, etc.).

BARIUM CARBONATE TREATMENT OF SULFURIC ACID …
BARIUM CARBONATE TREATMENT OF SULFURIC ACID …

Acid Wastewater, 76 Chemical Reaction Considerations 76 Sludge Separation Characteristics 79 Treatment of Supernatant . . . . . 81 Method II: Barium Carbonate Removal of Soluble Sulfates from Neutralized Sulfuric ,Acid Wastewater,. 81 Chemical Reaction Considerations . 81 Sludge Separation Characteristics 86 Barium Ion Concentration 87

Acid mine drainage - Wikipedia
Acid mine drainage - Wikipedia

Although a host of chemical processes contribute to acid mine drainage, pyrite oxidation is by far the greatest contributor. A general equation for this process is: 2 FeS 2 ( s ) + 7 O 2 ( g ) + 2 H 2 O ( l ) 2 Fe 2 + ( aq ) + 4 SO 4 2 − ( aq ) + 4 H + ( aq ) {\displaystyle {\ce {2FeS2{\scriptstyle (s)}+7O2{\scriptstyle (g)}+2H2O{\scriptstyle (l)}->2Fe^{2+}{\scriptstyle (aq)}+4SO4^{2-}{\scriptstyle (aq)}+4H+{\scriptstyle …

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City