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Pipes for industrial discharge of acid 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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Pipes for industrial discharge of acid wastewater
50% Content of decoloring agent of Dyeing and printing ...
50% Content of decoloring agent of Dyeing and printing ...

1.This chemical is able to make a good decoloration effect on printing and dyeing wastewater of active and acid dyes. 2.It is able to reduce COD.COD removal rate can reach over 85%. 3.In alkali wastewater,it can make PH value neutral.It is better to be used together with PAC.

Rejection of antimony in dyeing and printing wastewater by ...
Rejection of antimony in dyeing and printing wastewater by ...

25/11/2020, · In particular, the treatment of ,wastewater, from ,dyeing, and ,printing, process, which experienced rapid development especially in developing countries in the past few decades, is still a challenge because of the complexity of ,dyeing, and ,printing wastewater, such as high chemical oxygen demand (COD) value, presence of chrominance, turbidity, and various organic chemical contaminants …

15 types of industrial wastewater treatment processes ...
15 types of industrial wastewater treatment processes ...

The mass fractions of acids vary widely, ranging from less than 1% to as high as 10%. Alkaline wastewater mainly comes from printing and dyeing plants, leather mills, paper mills, and oil refineries. Some of them contain organic bases or inorganic bases. Some of the mass fractions of alkali are higher than 5% and some are lower than 1%.

Decolorization of dyeing wastewater and characterization ...
Decolorization of dyeing wastewater and characterization ...

Dyeing wastewater, from the textile ,printing, and ,dyeing, industry can cause aesthetical problems and impede light penetration, which greatly upsets biological processes in surface water (Rajkumar & Kim 2006; Santhy & Selvapathy 2006; Gul & Silah 2014).

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, ...

14 Industrial Wastewater Treatment Principals and Ideas
14 Industrial Wastewater Treatment Principals and Ideas

The acid mass fraction varies widely, from less than 1% at low and greater than 10% at high. Alkaline wastewater mainly comes from printing and dyeing factories, leather factories, paper mills, oil refineries and so on. Some of them contain organic or inorganic alkali. The mass fraction of the alkaline is higher than 5%, and some are less than 1%.

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

The dye-fiber reaction can occur under neutral or mild ,acidic, conditions without the use of electrolytes and therefore severe wash-off procedures can be eliminated since hydrolysis of dyes generally occurs in ,alkaline, conditions.

Dye Waste Water Treatment COD
Dye Waste Water Treatment COD

compounds, along with ,acidic, and ,alkaline, contaminants, from industries on the general public are widely accepted.The dyes are mainly aromatic or heterocyclic compounds, with colour-containing groups and polar groups. The structure is complicated and stable, resulting in higher difficulty to degrade the ,wastewater,…

TEXTILE BLEACHING DYEING FINISHING & PRINTING
TEXTILE BLEACHING DYEING FINISHING & PRINTING

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, and ,alkaline, contaminants, from industrial establishments on the general public are widely accepted.

50% Content of decoloring agent of Dyeing and printing ...
50% Content of decoloring agent of Dyeing and printing ...

1.This chemical is able to make a good decoloration effect on ,printing, and ,dyeing wastewater, of active and acid dyes. 2.It is able to reduce COD.COD removal rate can reach over 85%. 3.In alkali ,wastewater,,it can make PH value neutral.It is better to be used …

Pretreatment of printing and dyeing wastewater by Fe/C ...
Pretreatment of printing and dyeing wastewater by Fe/C ...

A large volume of complex and refractory organic wastewater is generated from dyeing, printing and sizing processes with the development of the textile industry in recent years (Gupta et al. 2015). Such wastewater not only is characterised by high color, poor biodegradability and biological toxicity, but also threatens the balance of ecology and the safety of human beings ( Holkar et al. 2016 ; Sultan 2017 ).

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

The dye-fiber reaction can occur under neutral or mild acidic conditions without the use of electrolytes and therefore severe wash-off procedures can be eliminated since hydrolysis of dyes generally occurs in alkaline conditions.

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, ...

50% Content of decoloring agent of Dyeing and printing ...
50% Content of decoloring agent of Dyeing and printing ...

1.This chemical is able to make a good decoloration effect on ,printing and dyeing wastewater, of active and acid dyes. 2.It is able to reduce COD.COD removal rate can reach over 85%. 3.In alkali ,wastewater,,it can make PH value neutral.It is better to be used together with PAC.

PAPER OPEN ACCESS Progress Research on Treatment Methods ...
PAPER OPEN ACCESS Progress Research on Treatment Methods ...

Printing and dyeing wastewater is recognized as one of the most difficult industrial wastewater treatments due to its complex composition, high content of refractory organic matter, high chroma, high alkalinity and poor biodegradability.

Textile Wastewater Treatment: A Critical Review
Textile Wastewater Treatment: A Critical Review

For ,printing and dyeing wastewater,, the first consideration is the organic pollutants, color and heavy metal ions. Recently, as the lack of water, the recovery of ,wastewater, should be considered. So the decolorization of the ,printing and dyeing wastewater, increased heavily. IV. TEXTILE ,WASTEWATER, TREATMENT PROCESSES

TEXTILE BLEACHING DYEING FINISHING & PRINTING
TEXTILE BLEACHING DYEING FINISHING & PRINTING

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, and ,alkaline, contaminants, from industrial establishments on the general public are widely accepted.

Decolorization of dyeing wastewater and characterization ...
Decolorization of dyeing wastewater and characterization ...

Dyeing wastewater from the textile printing and dyeing industry can cause aesthetical problems and impede light penetration, which greatly upsets biological processes in surface water (Rajkumar & Kim 2006; Santhy & Selvapathy 2006; Gul & Silah 2014).

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