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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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oil field fracturing flow-back fluids treatment definition science
A Review Biotechnological removal of color and dye from ...
A Review Biotechnological removal of color and dye from ...

A synthetic ,dye, in ,wastewater, cannot be efficiently decolorized by traditional methods. This is because of the high cost and disposal problems for treating ,dye wastewater, at large scale in the textile and paper industries [16]. The technologies for colour removal can be divided into three categories: biological, chemical and physical [15].

Treatment of Direct Blending Dye Wastewater and Recycling ...
Treatment of Direct Blending Dye Wastewater and Recycling ...

Therefore, ,dye wastewater, pollution is a very important issue that needs to be solved. In recent years physical or chemical treatment processes have been developed to treat ,dye wastewater,, such as adsorption, biological treatments, electrochemical, flocculation–coagulation, advanced oxidation processes and membrane separation [6–12].

Polyethylenimine-crosslinked chitin flake as a biosorbent ...
Polyethylenimine-crosslinked chitin flake as a biosorbent ...

water [3]. In general, 1,000 mg/L of ,dye, is used as a staining solu-tion, and 100 mg/L of ,dye, remains in the staining ,wastewater, [4]. As such, the discharge of dark-colored ,wastewater, can reduce the photosynthesis of aquatic organisms by suppressing the penetra-tion of sunlight. In addition, some dyes have been reported to pro-

Sewer Tracing Dye – Environmental Chemical Corporation
Sewer Tracing Dye – Environmental Chemical Corporation

For product information or to place an order call toll free: 800-262-0458 Heavy Duty Concentrate. T his highly concentrated sewer tracing ,dye, is formulated for use in all types of sewer flow studies and pollution investigations. It creates an intense fluorescent color for maximum visibility under a …

Polyethylenimine-crosslinked chitin flake as a biosorbent ...
Polyethylenimine-crosslinked chitin flake as a biosorbent ...

water [3]. In general, 1,000 mg/L of ,dye, is used as a staining solu-tion, and 100 mg/L of ,dye, remains in the staining ,wastewater, [4]. As such, the discharge of dark-colored ,wastewater, can reduce the photosynthesis of aquatic organisms by suppressing the penetra-tion of sunlight. In addition, some dyes have been reported to pro-

Dye - Wikipedia
Dye - Wikipedia

Usually acetic ,acid, is added to the ,dye, bath to help the uptake of the ,dye, onto the fiber. Basic dyes are also used in the coloration of paper . Direct or substantive dyeing is normally carried out in a neutral or slightly ,alkaline dye, bath, at or near boiling point , with the addition of either sodium chloride (NaCl) or sodium sulfate (Na 2 SO 4 ) or sodium carbonate (Na 2 CO 3 ).

Dye - Wikipedia
Dye - Wikipedia

Usually acetic ,acid, is added to the ,dye, bath to help the uptake of the ,dye, onto the fiber. Basic dyes are also used in the coloration of paper . Direct or substantive dyeing is normally carried out in a neutral or slightly ,alkaline dye, bath, at or near boiling point , with the addition of either sodium chloride (NaCl) or sodium sulfate (Na 2 SO 4 ) or sodium carbonate (Na 2 CO 3 ).

Sono-assisted photocatalytic degradation of styrene ...
Sono-assisted photocatalytic degradation of styrene ...

Titanium dioxide,, or titania (TiO 2 ), is a tremendously attractive oxide material for versatile applications, such as pollutant photodegradation [1], photo-electrochemical water splitting [2] and ...

Membrane Technology For apple cider vinegar | China JIUWU
Membrane Technology For apple cider vinegar | China JIUWU

To keep original saline matter, amino ,acid,, total acidity, reducing sugar and other effective ingredients To remove bacteria, macromolecular organically matter, suspended solids and some ,poisonous, matters To get a bright tint, a sterling fragrance, have no change of non-volatile ,acid, and soluble non-salt solids content

Subcloning | An Introduction to Subcloning Methods
Subcloning | An Introduction to Subcloning Methods

Diamond Nucleic ,Acid Dye, may be visualized and photographed with any system that has a SYBR® Gold filter or setting. CAUTION: Use protective eyewear when working with a UV light source. Note: If using ethidium bromide, you may wish to destain or rinse the gel in fresh 1X running buffer prior to viewing it on the UV lightbox.

Degradation of Acid Orange 7 Dye Wastewater by Low ...
Degradation of Acid Orange 7 Dye Wastewater by Low ...

The ,acid, orange 7 ,dye wastewater, was degraded by low temperature plasma. The effects of initial concentration of ,acid, orange 7,input power,initial pH and air flow rate on the degradation of ,acid, orange 7 were discussed. The results showed that when the input power was 18 W,the initial concentration of ,acid, orange 7 was 5 mg/L,the initial pH was 7. 0,and the air flow rate was 56 L/h,the ...

Removal of Dyes by Aqueous Mixed Coagulants | Ooi | ASEAN ...
Removal of Dyes by Aqueous Mixed Coagulants | Ooi | ASEAN ...

The alum dose of 1,000-3,000 ppm in the coagulant mixture increased by 10-25 % the color removal in the ,alkaline, zone. Floc settling time was found to (a) increase with coagulant dose and (b) take longer in the acidic color-removal zone than in the ,alkaline, zone. The presence of alum increased the floc settling time in the ,alkaline, zone.

Sewer Tracing Dye – Environmental Chemical Corporation
Sewer Tracing Dye – Environmental Chemical Corporation

For product information or to place an order call toll free: 800-262-0458 Heavy Duty Concentrate. T his highly concentrated sewer tracing ,dye, is formulated for use in all types of sewer flow studies and pollution investigations. It creates an intense fluorescent color for maximum visibility under a …

Synthesis characterization and photocatalytic activity of ...
Synthesis characterization and photocatalytic activity of ...

Titanium dioxide, (TiO 2 ) is a heterogeneous photocatalysts and TiO 2 based photocatalysis is a promising technique for ,wastewater, treatment [4], especially for ,wastewater, …

Microbial degradation of textile industry effluents: A review
Microbial degradation of textile industry effluents: A review

dyes commonly include ,acid,, reactive and direct dyes. Only one type of cationic ,dye, being utilized in textile industry is basic dyes. Nonionic dyes which do not undergo ionization in solution are disperse dyes [39]. Table 1. Some azo dyes are as follow ,Dye, Type Chemical nature References Direct blue Direct ,dye, …

Wastewater Treatment Systems Upgrading Textile Operations ...
Wastewater Treatment Systems Upgrading Textile Operations ...

The cotton-finishing mill using conventional process chemicals (no substitution for soap, starch, or acetic ,acid,) discharges a composite waste that is decidedly ,alkaline,, colored by the pre- dominant ,dye,, with a BODS of approximately 300 mg/1 and a volume of approximately 40,000 gallons per 1,000 pounds of …

Degradation of Acid Orange 7 Dye Wastewater by Low ...
Degradation of Acid Orange 7 Dye Wastewater by Low ...

The ,acid, orange 7 ,dye wastewater, was degraded by low temperature plasma. The effects of initial concentration of ,acid, orange 7,input power,initial pH and air flow rate on the degradation of ,acid, orange 7 were discussed. The results showed that when the input power was 18 W,the initial concentration of ,acid, orange 7 was 5 mg/L,the initial pH was 7. 0,and the air flow rate was 56 L/h,the ...

The SOLVOCARB® process. Neutralization of alkaline ...
The SOLVOCARB® process. Neutralization of alkaline ...

in water, carbon dioxide forms carbonic ,acid, and reduces the pH value to the appropriate level. ... → Laundries and ,dye, works → Photo-chemical ... Neutralization of ,alkaline wastewater, with carbon dioxide. General Advantages Areas of use

Development Document For Effluent Limitations Guidelines ...
Development Document For Effluent Limitations Guidelines ...

Titanium, Molten Salt Rinse. As discussed in Section III, when molten salt baths are used to descale ,titanium, alloys, they are generally followed by a waiter quench and rinse step. Water use, ,wastewater, discharge, and current recycle practices corresponding to this waste stream are summarized in Table V-178. ,Titanium, Tumbling ,Wastewater,.

Subcloning | An Introduction to Subcloning Methods
Subcloning | An Introduction to Subcloning Methods

Diamond Nucleic ,Acid Dye, may be visualized and photographed with any system that has a SYBR® Gold filter or setting. CAUTION: Use protective eyewear when working with a UV light source. Note: If using ethidium bromide, you may wish to destain or rinse the gel in fresh 1X running buffer prior to viewing it on the UV lightbox.

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