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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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Dissolved effluent organic matter: Characteristics and ...
Dissolved effluent organic matter: Characteristics and ...

15/6/2015, · The dissolved effluent ,organic, matter (dE f OM) present in biologically treated urban ,wastewater,, consists of a heterogeneous mixture of refractory ,organic, compounds with diverse structures and varying origin, including dissolved natural ,organic, matter, soluble microbial products, endocrine disrupting compounds, pharmaceuticals and personal care products residues, disinfection …

Project Report on Waste Water Treatment
Project Report on Waste Water Treatment

Such biological decomposition is conducted ,under, aerobic ,conditions,, i.e. in the presence of plenty of oxygen. For oxidation of 1 mg of car­bon, 2.67 mg of dissolved oxygen is required. ,Organic,, hydrogen, sulphur and nitrogen, the major elements in ,waste water,, consume additional oxygen for their oxidation.

Dissolved ozone flotation (DOF) — a promising technology ...
Dissolved ozone flotation (DOF) — a promising technology ...

The mineral ,flotation wastewater, containing residual potassium n-butyl xanthate (PBX) must be treated because of its biotoxicity, stench, and difficulty to be degraded.

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Industrial wastewater treatment, describes the processes used for treating ,wastewater, that is produced by industries as an undesirable by-product. After treatment, the treated industrial ,wastewater, (or effluent) may be reused or released to a sanitary sewer or to a surface water in the environment.. Most industries produce some ,wastewater,.Recent trends have been to minimize such production or ...

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

17/11/2011, · The amount ,of organic, compounds in ,wastewater, is generally evaluated by chemical oxygen demand (COD) test, biological oxygen demand (BOD) test, and (TOC) test. The basis for the COD test is that nearly all ,organic, compounds can be fully oxidized to carbon dioxide with a strong oxidizing agent ,under acidic conditions,.

Review of Organic Wastewater Compound Concentrations and ...
Review of Organic Wastewater Compound Concentrations and ...

They can be sources of nutrients and pathogen pollution and have been linked to health effects in communities where they contaminate drinking water. However, few studies have evaluated their ability to remove ,organic wastewater, compounds (OWCs) such as pharmaceuticals, hormones, and detergents.

FLOATATION REAGENTS - SlideShare
FLOATATION REAGENTS - SlideShare

If it is used in ,flotation under, high alkali ,conditions,, it can improve the separation ,flotation, effect between lead and zinc, with little or without any cyanide. Isopropyl (ethyl,isobutyl) xanthogen ethyl formate Application: It is a collecting agent of nonferrous metal mine, which has better ,flotation, effect than the related xanthogenate, also has more steady character and could be used in ,acidic, pulp .

A review of the applications of ion floatation: wastewater ...
A review of the applications of ion floatation: wastewater ...

Rose et al. investigated ,conditions, for concentrating yttrium from solution using α-sulphonated fatty acids via ion ,flotation,, and a maximum recovery of 99.5% was obtained ,under, optimum ,conditions, within 30 minutes; furthermore, they found that by increasing the pH to 8, the extraction rate was 3 times faster with a smaller loss in extraction compared with ,flotation, at pH 2.75. 84 Chirkst et al. found that as the pH …

Application of coagulation/flocculation in oily wastewater ...
Application of coagulation/flocculation in oily wastewater ...

Under acidic conditions,, anionic polyelectrolytes are considered non-ionic. When the pH is below 4.5, anionic PAM(APAM) is generally nonionic. For polyacrylic acid (PAA), it is 4.5. The adsorption action will be realized by hydrogen bonding because electrostatic interaction between the polymer chains and particles will be considered weak at this time.

Research on treatment and mechanism of salicylhydroxamic ...
Research on treatment and mechanism of salicylhydroxamic ...

The simulated, flotation wastewater, with, hydroxamic acid, was put into BAF step by step according the nutrient solution to, hydroxamic acid wastewater, ratio of 9:1, 8:2, 7:3 until 10:0. The concentration and removal ratio of CODCr during the simulated, flotation wastewater, continuous feeding process were tested as in Figure 6.

Industrial wastewater treatment - Wikipedia
Industrial wastewater treatment - Wikipedia

Aerobic ,conditions, are maintained by forced air flowing through the bed or by natural convection of air. The process involves adsorption ,of organic, compounds in the ,wastewater, by the microbial slime layer, diffusion of air into the slime layer to provide the oxygen required for the biochemical oxidation of the ,organic

Review of Organic Wastewater Compound Concentrations and ...
Review of Organic Wastewater Compound Concentrations and ...

They can be sources of nutrients and pathogen pollution and have been linked to health effects in communities where they contaminate drinking water. However, few studies have evaluated their ability to remove ,organic wastewater, compounds (OWCs) such as pharmaceuticals, hormones, and detergents.

Flotation in Water and Wastewater Treatment - MDPI
Flotation in Water and Wastewater Treatment - MDPI

Flotation, is known as a separation process, based on the introduction of gas bubbles as the transport medium. Suspended particulate matter, being hydrophobic or conditioned to be so, is then attach to the bubbles and moves toward the water solution surface—i.e., contrary to the direction of gravity [ 1, 2 ].

Combined use of O3/H2O2 and O3/Mn2+ in flotation of dairy ...
Combined use of O3/H2O2 and O3/Mn2+ in flotation of dairy ...

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Study on the Degradation of Sodium Diethyldithiocarbamate ...
Study on the Degradation of Sodium Diethyldithiocarbamate ...

Chemical oxidation is an effective method to remove organic pollutants from wastewater, with the advantages of variety of oxidants, rapidity of reaction, and good quality of effluent which make it be one of the most widely used methods for treating residual chemical reagents in beneficiation wastewater, meanwhile with the disadvantages of large dosage of oxidants and relatively high cost [ 12

FLOATATION REAGENTS - SlideShare
FLOATATION REAGENTS - SlideShare

If it is used in flotation ,under, high alkali ,conditions,, it can improve the separation flotation effect between lead and zinc, with little or without any cyanide. Isopropyl (ethyl,isobutyl) xanthogen ethyl formate Application: It is a collecting agent of nonferrous metal mine, which has better flotation effect than the related xanthogenate, also has more steady character and could be used in ,acidic, pulp .

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

17/11/2011, · The amount of organic compounds in wastewater is generally evaluated by chemical oxygen demand (COD) test, biological oxygen demand (BOD) test, and (TOC) test. The basis for the COD test is that nearly all organic compounds can be fully oxidized to carbon dioxide with a strong oxidizing agent under acidic conditions.

Micro and nanobubble technologies as a new horizon for ...
Micro and nanobubble technologies as a new horizon for ...

In conventional bubbling systems generation of %OH is not detected in acidic pH. Similarly, studied the degradation of organic substances in winery wastewater, and observed that reduction of chemical oxygen demand (COD) under the action of O 3 for acidic pH is negligible and more accelerated in neutral and alkaline pH by the fast -OH formation.

Flotation in Water and Wastewater Treatment - MDPI
Flotation in Water and Wastewater Treatment - MDPI

Flotation, is known as a separation process, based on the introduction of gas bubbles as the transport medium. Suspended particulate matter, being hydrophobic or conditioned to be so, is then attach to the bubbles and moves toward the water solution surface—i.e., contrary to the direction of gravity [ 1, 2 ].

1. Introduction - Hindawi
1. Introduction - Hindawi

Sunlight degradation was not an effective treatment method for practical flotation wastewater. Under varied operation parameters of reaction time, initial pH, and O 3 dosage, ozonation was proved to be effective for simulated salicylchydroxamic acid wastewater, the CODcr removal ratio could reach the maximum 55.46% at the optimum experimental conditions, and the BOD 5 /CODcr value increased to …

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