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There is a large amount of chromium in acid environment 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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There is a large amount of chromium in acid environment wastewater
Characterization of Caulobacters isolated from wastewater ...
Characterization of Caulobacters isolated from wastewater ...

Most Caulobacters, regardless of their source, are resistant to B-lactam antibiotics, such as ampicillin and penicillin, as well as to nalidixic ,acid, and Polymyxin B. Caulobacters isolated from ,wastewater treatment, facilities, however, were more frequently resistant to chloramphenicol, tetracycline, erythromycin and, to a lesser extent, tobramycin compared to those isolated from other sources.

Fate of Environmental Pollutants
Fate of Environmental Pollutants

moleties. O-benzyl-,p-chlorophenol,, a hospital disinfectant that has widespread low level discharge to the environment through municipal ,wastewater treatment, facilities, was rapidly biode graded or photoxidized in river water and ,wastewater, sludge samples, suggesting that its persistence in the environment was

Purification and characterization of peroxidase from ...
Purification and characterization of peroxidase from ...

This enzyme can provide value for multiple industrial applications, of which the most important ones include decolorization of waste (Jadhav et al. 2009), ,treatment, of ,waste water, containing phenolic compounds (Lai and Lin 2005; Dalal and Gupta 2007), and synthesis of various aromatic chemicals and removal of peroxides from food stuffs and industrial wastes (Kim and Yoo 1996; Saitou et al. 1991).

Improvement of Laccase Activity Via Covalent ...
Improvement of Laccase Activity Via Covalent ...

The resulting mixture of the support and laccase solution was then incubated at 25 °C with a shaking speed of 170 rpm for 2 h to reach the equilibrium state. Then, the obtained immobilized laccase was magnetically separated, washed with a 0.2 M ,sodium acetate, buffer (pH 4.0), freeze-dried overnight, and stored at 4 °C for further use.

P-Chlorophenol 106-48-9 wiki - GuideChem
P-Chlorophenol 106-48-9 wiki - GuideChem

4.10 Cleanup Methods. Phenolic cmpd in ,wastewater, are oxidized with hydrogen peroxide catalyzed by iron (3+)-iron (2+). When the wt ratio of phenol:hydrogen peroxide is 1:3 and iron 5-100 ppm, more than 95% of the phenols are removed in 30 min from a 500 ppm phenol soln at pH 5-6 and 25-50 deg C. /Phenolic cmpd/.

Novel Fenton-biological combined process at neutral pH by ...
Novel Fenton-biological combined process at neutral pH by ...

1/11/2020, · The total operational cost is 2.26 RMB/m 3 for classical Fenton-biological process in ,treatment, of ,wastewater, containing 200 mg/L COD based on the following prices of chemicals (average prices from Alibaba): H 2 O 2 (30%) 1200 RMB/ton, H 2 SO 4 (98%) 800 RMB/ton, NaOH 2400 RMB/ton, and FeSO 4 200 RMB/ton. 4. Conclusions

Voc Emissions from Socmi Wastewater Background Information ...
Voc Emissions from Socmi Wastewater Background Information ...

Because of the site-specific nature of this approach, no estimates of emission control efficiency were made. 4.2 Suppression and ,treatment, technologies Under this emission control strategy, VOC emissions are reduced by a three-step program that includes: (1) suppression of emissions from collection and ,treatment, system components up to the point of ,treatment,; (2) ,treatment, of ,wastewater, streams to remove organic compounds: and (3) ,treatment, …

Low-biodegradable composite chemical wastewater treatment ...
Low-biodegradable composite chemical wastewater treatment ...

Sequencing batch reactor tech- Parameters Concentrations nology (SBR), a periodic discontinuous process can be consid- pH 7.83 ± 0.24 ered for this type of ,wastewater treatment, and application of TDS (g/l) 11 ± 0.98 this process was successfully documented for various types of Suspended solids (mg/l) 900 ± 181 ,wastewater treatment, (domestic ,wastewater,, medium and low Oil and grease …

Improvement of Laccase Activity Via Covalent ...
Improvement of Laccase Activity Via Covalent ...

The resulting mixture of the support and laccase solution was then incubated at 25 °C with a shaking speed of 170 rpm for 2 h to reach the equilibrium state. Then, the obtained immobilized laccase was magnetically separated, washed with a 0.2 M ,sodium acetate, buffer (pH 4.0), freeze-dried overnight, and stored at 4 °C for further use.

Reduction of Fe3+ by intermediates during Fenton oxidation ...
Reduction of Fe3+ by intermediates during Fenton oxidation ...

Seven kinds of additional compounds, malic ,acid,, ,sodium, propionate, ,sodium acetate,, ,sodium, citrate, phenol, glucose and soluble starch were taken as co metabolism substrates respectively.

Characterization of Caulobacters isolated from wastewater ...
Characterization of Caulobacters isolated from wastewater ...

Most Caulobacters, regardless of their source, are resistant to B-lactam antibiotics, such as ampicillin and penicillin, as well as to nalidixic ,acid, and Polymyxin B. ,Caulobacters isolated from wastewater treatment, facilities, however, were more frequently resistant to chloramphenicol, tetracycline, erythromycin and, to a lesser extent, tobramycin compared to those isolated from other sources.

Fate of Environmental Pollutants
Fate of Environmental Pollutants

moleties. O-benzyl-,p-chlorophenol,, a hospital disinfectant that has widespread low level discharge to the environment through municipal ,wastewater treatment, facilities, was rapidly biode graded or photoxidized in river water and ,wastewater, sludge samples, suggesting that its persistence in the environment was

4-Chlorophenol | C6H4ClOH - PubChem
4-Chlorophenol | C6H4ClOH - PubChem

The quantum yield for the disappearance of 4-chlorophenol was 0.25 when it was irradiated at 296 nm in aqueous solution at pH 1-13; products of photolysis included hydroquinone. If released to soil, 4-chlorophenol is expected to have very high to moderate mobility based upon a Koc range of 70 to 485.6.

Immobilised enzymes in biorenewables production - Chemical ...
Immobilised enzymes in biorenewables production - Chemical ...

Oils, fats, carbohydrates, lignin, and amino acids are all important raw materials for the production of ,biorenewables,. These compounds already play an important role in everyday life in the form of wood, fabrics, starch, paper and rubber. Enzymatic reactions do, in principle, allow the transformation of the Enzyme immobilisation

Purification and characterization of peroxidase from ...
Purification and characterization of peroxidase from ...

This enzyme can provide value for multiple industrial applications, of which the most important ones include decolorization of waste (Jadhav et al. 2009), ,treatment, of ,waste water, containing phenolic compounds (Lai and Lin 2005; Dalal and Gupta 2007), and synthesis of various aromatic chemicals and removal of peroxides from food stuffs and industrial wastes (Kim and Yoo 1996; Saitou et al. 1991).

Fate of Environmental Pollutants
Fate of Environmental Pollutants

moleties. O-benzyl-,p,-chlorophenol, a hospital disinfectant that has widespread low level discharge to the environment through municipal ,wastewater treatment, facilities, was rapidly biode graded or photoxidized in river water and ,wastewater, sludge samples, suggesting that its persistence in the environment was

INSTRINSICALLY ANTIMICROBIAL POROSIC MATRIX COMPOSITES …
INSTRINSICALLY ANTIMICROBIAL POROSIC MATRIX COMPOSITES …

In further embodiments, the solid pore-forming substance comprises ,sodium, sulfate, sugars (such as glucose, trehalose, fructose and many others), dissolvable or meltable natural polymers, dissolvable or meltable artificial polymers or salts comprising ammonium, calcium, magnesium, potassium, lithium, iron, aluminum and other metals and cations, pyridinium, quaternary, ammonium, ,sodium,, ,acetate, ...

Full article: Characterization and immobilization of ...
Full article: Characterization and immobilization of ...

13/7/2015, · An amount of modified bead (0.05 g) was added to 2.5 ml of the laccase solution (2 mg/ml), and the immobilization reaction was accomplished in a rotary shaker for 4 h at 25°C. The beads were washed with 0.05 M ,acetate, buffer and were stored in ,acetate, buffer at 4°C until use.

106-48-9P-Chlorophenol-Product Center-Changzhou ...
106-48-9P-Chlorophenol-Product Center-Changzhou ...

Folic ,acid,,59-30-3; MK-4827 (HCl) Folic ,acid,; 5-Bromo-2-chloropyrimidine 32779-36-5; Niraparib (R)-tert-butyl 3-(4-aminophenyl)piperidine-1-carboxylate

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