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

extra deep well drilling residue harmless disposal technology ltd stock

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.

extra deep well drilling residue harmless disposal technology ltd stock
Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

Printing, operation is carried out manually as well as mechanically both, the former on screen ,printing, tables and the latter on various ,printing, machines. For ,printing, of nylon fabrics generally ,acidic, and metal complex type of dyes are used whereas for polyester fabrics, disperse colours are used with a non-volatile acid to maintain the pH at the required level.

Decolorization of Dyeing Wastewater Using Polymeric ...
Decolorization of Dyeing Wastewater Using Polymeric ...

29/2/2012, · The ,wastewater, produced by a reactive ,dyeing, contains [2,3]: (i) hydrolyzed reactive dyes not fixed on the substrate, representing 20-30% of the reactive dyes applied (on average 2 g/L) (this residual amount is responsible for the coloration of the effluents and cannot be recycled); (ii) ,dyeing, auxiliaries or organic substances, which are non-recyclable and responsible for the high BOD/COD of ...

A critical review on advances in the practices and ...
A critical review on advances in the practices and ...

and it also increses pH of ,wastewater, [33,34]. 2.5. ,Dyeing, and ,printing, The ,dyeing, procedure involves addition of color to material and treatment with dye. The most required factors in this procedure are temperature and time. The effluent from ,printing and dyeing, both involve presence of waste materials. ,Dyeing

Review on various types of pollution problem in textile ...
Review on various types of pollution problem in textile ...

The ,waste water, from the ,dyeing, and ,printing, industries is identified as the most polluted water considering the volume generate as well as the effluent composition. 7 In textile industry 2000000REF tons of dyes are turned to effluent every year during ,dyeing,, finishing and ,printing, operations, due to the inefficiency of ,dyeing, process.

A critical review on advances in the practices and ...
A critical review on advances in the practices and ...

and it also increses pH of ,wastewater, [33,34]. 2.5. ,Dyeing, and ,printing, The ,dyeing, procedure involves addition of color to material and treatment with dye. The most required factors in this procedure are temperature and time. The effluent from ,printing and dyeing, both involve presence of waste materials. ,Dyeing

B. Ramesh Babu* A.K. Parande S. Raghu and T. Prem Kumar
B. Ramesh Babu* A.K. Parande S. Raghu and T. Prem Kumar

of ,wastewater, from different steps in the ,dyeing, and finishing processes. ,Wastewater, from ,printing and dyeing, units is often rich in color, containing residues of reactive dyes and chemicals, and requires proper treatment before being released into the environment. The toxic effects of dyestuffs and other organic compounds, as well as ,acidic, ...

Textile dyeing and textile wastewater treatment
Textile dyeing and textile wastewater treatment

Since non-polar dyes are primarily used in supercritical CO2 ,dyeing, further development is required to enhance the ,dyeing, of natural fibers with ionic dyes such as acid dyes or reactive dyes because the affinity of natural textiles with dyes occurs by chemical (covalent bonds) interactions or fixed by physical (van der waals) forces.20-21 Kraan et al. (2003) reported four factors that ...

The Treatment of High Concentration Dyeing Wastewater with ...
The Treatment of High Concentration Dyeing Wastewater with ...

produces nearly 700,000 tons of ,dyeing wastewater,. As a result, the ,wastewater, emissions, and the total amounts of pollutants of the ,dyeing, industry, rank second and fourth among the industrial departments nationwide, and the ,dyeing, industry has become one of the major water pollution industries in China.

Effect of Biosorption Parameters Kinetics Isotherm and ...
Effect of Biosorption Parameters Kinetics Isotherm and ...

Dyeing, and ,printing, is the most complex of the wet processes and ... ,wastewater, and the presence of very small amounts of dyes in water is highly visible and undesirable (Robinson et al., 2001). ... neutral and ,alkaline, conditions (Chiou & Li, 2002). 3.2 Effect of temperature

ASSESSMENT STUDIES ON WASTEWATER POLLUTION BY …
ASSESSMENT STUDIES ON WASTEWATER POLLUTION BY …

The ,wastewater, contains a variety of chemicals from the various stages of process operations which include desizing, scouring, bleaching ,and dyeing, 4-5. The textile industry is distinguished by the raw material used and this determines the volume of the water required for production as well as the ,wastewater, generated.

Treatment of Industrial Effluents - Environmental Pollution
Treatment of Industrial Effluents - Environmental Pollution

Printing, operation is carried out manually as well as mechanically both, the former on screen ,printing, tables and the latter on various ,printing, machines. For ,printing, of nylon fabrics generally ,acidic, and metal complex type of dyes are used whereas for polyester fabrics, disperse colours are used with a non-volatile acid to maintain the pH at the required level.

Textile dye wastewater characteristics and constituents of ...
Textile dye wastewater characteristics and constituents of ...

Dyeing, 6.3–10.7 72–956 258–1970.6 70–300 48–601 0.48–33.3 0.08–1.32 3.7–8.3 ,Dyeing, Gauge 6.5–12.1 175–325 458–7561 230–410 70–230 18.4–18.8 0.19–0.21 4.7–4.8 Dressing 7–7.11 135–544 825–1905 60–180 40–80 5.06–14.8 1–2.2 1.6–3.6

The application of magnesium hydroxide in the wastewater ...
The application of magnesium hydroxide in the wastewater ...

In addition, the magnesium salt as disposal agent for acid blue and blue/red ,waste water,, ,waste water, contain a variety of ,printing and dyeing, auxiliaries, containing active BP, reactive orange red K - 2 - designed.the GN, reactive purple K - 3 K R mixed dye ,wastewater, such as decoloring disposition, has a good decolorizing effect.

Decolorization of Dyeing Wastewater Using Polymeric ...
Decolorization of Dyeing Wastewater Using Polymeric ...

29/2/2012, · The ,wastewater, produced by a reactive ,dyeing, contains [2,3]: (i) hydrolyzed reactive dyes not fixed on the substrate, representing 20-30% of the reactive dyes applied (on average 2 g/L) (this residual amount is responsible for the coloration of the effluents and cannot be recycled); (ii) ,dyeing, auxiliaries or organic substances, which are non-recyclable and responsible for the high BOD/COD of ...

Anionic Surfactants - Alfa Chemistry
Anionic Surfactants - Alfa Chemistry

Anionic surfactants, show cationicity in both ,acidic, and ,alkaline, media. This makes it possible to flocculate precipitates with negatively charged aerosol particles. As the king of new flocculants, ,anionic surfactants, have extensive sources, ... textile ,printing and dyeing wastewater,. ...

RSC Advances
RSC Advances

produces a large amount of ,printing and dyeing wastewater, through synthetic dyes every year. This ,wastewater, is often slightly ,acidic, or slightly ,alkaline,, has a low ratio of BOD5/COD (5 days biochemical oxygen demand to chemical oxygen demand, around 20%), and can contain dyestuff, high salt,

The Treatment of High Concentration Dyeing Wastewater with ...
The Treatment of High Concentration Dyeing Wastewater with ...

produces nearly 700,000 tons of ,dyeing wastewater,. As a result, the ,wastewater, emissions, and the total amounts of pollutants of the ,dyeing, industry, rank second and fourth among the industrial departments nationwide, and the ,dyeing, industry has become one of the major water pollution industries in China.

Textile Wastewater Treatment: A Critical Review – IJERT
Textile Wastewater Treatment: A Critical Review – IJERT

The textile ,dyeing, industry consumes large quantities of water and produces large volumes of ,wastewater, from different steps in the ,dyeing, and finishing processes. ,Wastewater, from ,printing and dyeing, units is often rich in color, containing residues of reactive dyes and chemicals, such as complex components, many aerosols, high chroma, high COD ...

Chat Online Inquiry Email

Business cooperation

+86 513525609655

Company address

Road West, North Branch, Jingkai Road, Puyang City