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Treatment technology of acid wastewater in coal mine

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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Treatment technology of acid wastewater in coal mine
Formic acid | HCOOH - PubChem
Formic acid | HCOOH - PubChem

Formic Acid, is a reagent comprised of the organic chemical ,formic acid, that cleaves proteins into peptides at the C- or N-terminal side of an aspartate residue. NCI Thesaurus (NCIt) ,Formic acid, appears as a ,colorless, liquid with a pungent odor.

Sulfuric acid - Wikipedia
Sulfuric acid - Wikipedia

Sulfuric acid, (American spelling) or sulphuric ,acid, (Commonwealth spelling), also known as oil of vitriol, is a mineral ,acid, composed of the elements sulfur, oxygen and hydrogen, with molecular formula H 2 SO 4.It is a ,colorless,, odorless and viscous liquid that is miscible with water at all concentrations.. The ,acid, in pure form is highly corrosive towards other materials, as it is an …

Treatment of Wastewater from Purified Terephtalic Acid ...
Treatment of Wastewater from Purified Terephtalic Acid ...

PTA (1,4-benzenedicarboxylic ,acid,, C6H4(COOH)2) is purified via hydrogenation of crude terephthalic ,acid, and widely used as the main raw ,colorless, solid material in the manufacturing of various petrochemical products [1, 2]. A high strength organic PTA ,wastewater, is generated from the major sources of ,wastewater

Sulfuric acid - Wikipedia
Sulfuric acid - Wikipedia

Sulfuric acid, (American spelling) or sulphuric ,acid, (Commonwealth spelling), also known as oil of vitriol, is a mineral ,acid, composed of the elements sulfur, oxygen and hydrogen, with molecular formula H 2 SO 4.It is a ,colorless,, odorless and viscous liquid that is miscible with water at all concentrations.. The ,acid, in pure form is highly corrosive towards other materials, as it is an oxidant ...

Sulfuric acid | H2O4S | ChemSpider
Sulfuric acid | H2O4S | ChemSpider

Bioaccumulation Estimates from Log Kow (BCFWIN v2.17): Log BCF from regression-based method = 0.500 (BCF = 3.162) log Kow used: -2.20 (estimated) Volatilization from Water: Henry LC: 2.54E-011 atm-m3/mole (estimated by Bond SAR Method) Half-Life from Model River: 2.283E+007 hours (9.511E+005 days) Half-Life from Model Lake : 2.49E+008 hours (1.038E+007 days) Removal In ,Wastewater, …

Titration - Wikipedia
Titration - Wikipedia

Titration, (also known as titrimetry and volumetric analysis) is a common laboratory method of quantitative chemical analysis to determine the concentration of an identified analyte (a substance to be analyzed). A reagent, termed the titrant or titrator, is prepared as a standard solution of known concentration and volume. The titrant reacts with a solution of analyte (which may also be termed ...

Salicylic acid | C7H6O3 | ChemSpider
Salicylic acid | C7H6O3 | ChemSpider

Bioaccumulation Estimates from Log Kow (BCFWIN v2.17): Log BCF from regression-based method = 0.500 (BCF = 3.162) log Kow used: 2.26 (expkow database) Volatilization from Water: Henry LC: 7.34E-009 atm-m3/mole (Henry experimental database) Half-Life from Model River: 9.375E+004 hours (3906 days) Half-Life from Model Lake : 1.023E+006 hours (4.262E+004 days) Removal In ,Wastewater, …

Current Technology of Chlorine Analysis
Current Technology of Chlorine Analysis

hypochlorous ,acid, (HOCl) and hypochlorite ion (OCl—), are commonly referred to as “free available”chlorine. Hypochlorous ,acid, is a weak ,acid, and will disassociate according to: HOCl → H+ + OCl— In waters with pH between 6.5 and 8.5,the reaction is incomplete and both species (HOCl and OCl—) will be

EPA Investigates Peracetic Acid As A Green Alternative To ...
EPA Investigates Peracetic Acid As A Green Alternative To ...

PAA is a clear, colorless liquid made up of peroxide and acetic acid. It does not affect effluent toxicity, so it does not need to be removed as chlorine does. Its use doesn’t result in toxic residuals, mutagenic, or carcinogenic compounds after disinfection. Switching to PAA requires little retrofit for wastewater treatment plants.

Lactic acid | HC3H5O3 - PubChem
Lactic acid | HC3H5O3 - PubChem

Lactic Acid,, DL- is the racemic isomer of ,lactic acid,, the biologically active isoform in humans. ,Lactic acid, or lactate is produced during fermentation from pyruvate by lactate dehydrogenase. This reaction, in addition to producing ,lactic acid,, also produces nicotinamide adenine dinucleotide that is then used in glycolysis to produce energy source adenosine triphosphate ().

Disinfection of wastewater with peracetic acid: A review ...
Disinfection of wastewater with peracetic acid: A review ...

The desirable attributes of peracetic ,acid, for ,wastewater, disinfection are the ease of implementing ... PAA is clear ,colorless, liquid with a strong, pungent acrid odor, and no foaming ...

pH Indicators explained pH Indicators
pH Indicators explained pH Indicators

Acid,-base indicators behave as weak acids or bases in water or solvents. ... For water and ,wastewater, C C O O HO OH ... m-Nitrophenol (,colorless, to yellow) o-Cresolphthalein (,colorless, to red) Phenolphthalein (,colorless, to pink) The pH ranges shown are approximate.

BIOTECHNOLOGICAL TREATMENT FOR COLORLESS DENIM AND …
BIOTECHNOLOGICAL TREATMENT FOR COLORLESS DENIM AND …

acid, as mediator and a non-ionic surfactant as buffer. ... BIOTECHNOLOGICAL ,COLORLESS, DENIM AND TEXTIL ,WASTEWATER, 7 Laccase purification The enzyme was purified as follows: mixing one g of Deni Lite II and 10 cc of distilled water, the mixture was shaken for 30 min at room temperature; after that, it was centrifuged at 5000 rpm for 10 min.

Lactic acid production to purification: A review ...
Lactic acid production to purification: A review ...

Lactic acid, is a yellow to ,colorless, liquid (at 15 °C and 1 atm), and is odorless. It is the simplest hydroxycarboxylic ,acid,. ... From an environmental standpoint, the generation of large amounts of ,wastewater, is a major drawback. Furthermore, to produce one ton of ,lactic acid,, ...

Disinfection of wastewater with peracetic acid: a review
Disinfection of wastewater with peracetic acid: a review

PAA is a clear, colorless liquid with no foaming capabil-ity. It has a strong pungent acetic acid odor (acetic acid is the principal component of vinegar) and has an acidic pH of less than 2.Fora5% PAA, 20% to24% HP,and10% to12% AA solution, the specific gravity is 1.10 (Solvay Interox, 2002a). For a 12% PAA solution, the freezing point is from 40.3

WASTEWATER TREATMENT & ZERO LIQUID DISCHARGE SOLUTIONS …
WASTEWATER TREATMENT & ZERO LIQUID DISCHARGE SOLUTIONS …

70%) and nylon dyeing (acid dyes - 30%) processes. Additional wastewater originates from the cotton towel dyeing using vat/ reactive dyes. The two main chemicals for disperse dyeing are a buffer and a levelling agent. For acid dyeing, four main chemicals are being used: an acid donor, a levelling agent, a scouring agent and soda ash. For cotton

BIOTECHNOLOGICAL TREATMENT FOR COLORLESS DENIM …
BIOTECHNOLOGICAL TREATMENT FOR COLORLESS DENIM …

acid, as mediator and a non-ionic surfactant as buffer. ... BIOTECHNOLOGICAL ,COLORLESS, DENIM AND TEXTIL ,WASTEWATER, 7 Laccase purification The enzyme was purified as follows: mixing one g of Deni Lite II and 10 cc of distilled water, the mixture was shaken for 30 min at room temperature; after that, it was centrifuged at 5000 rpm for 10 min.

Treatment of Wastewater from Purified Terephtalic Acid ...
Treatment of Wastewater from Purified Terephtalic Acid ...

PTA (1,4-benzenedicarboxylic ,acid,, C6H4(COOH)2) is purified via hydrogenation of crude terephthalic ,acid, and widely used as the main raw ,colorless, solid material in the manufacturing of various petrochemical products [1, 2]. A high strength organic PTA ,wastewater, is generated from the major sources of ,wastewater

Using Spectrophotometers for Water and Wastewater Testing
Using Spectrophotometers for Water and Wastewater Testing

Spectrophotometry Overview. •UV-Visible spectroscopy measures the absorption of light in the ultraviolet and visible region of the spectrum •The UV-Visible region falls between the near-infrared and X-ray regions: 190 to 780 nm •UV Spectrum: 190 nm to 380nm •Visible (Vis) Spectrum: 325 - 360 nm to 780 nm (near infrared up to 1100 nm) •Some tests ...

Biotechnological treatment for colorless denim and textil ...
Biotechnological treatment for colorless denim and textil ...

The ABTS (2,2′-[3-etil benzotiazolin-6-sulphonic],acid,)-Laccase system was applied for discoloration of both commercial denim fabric and a synthetic indigo solution. After treatment, the denim fabric looked like an aged one, although fibers did not exhibit any damage and the synthetic indigo solution was bleached.

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