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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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gas testing waste water harmless disposal drop off unused
TECHNOLOGY FACT SHEETS FOR EFFLUENT TREATMENT PLANTS …
TECHNOLOGY FACT SHEETS FOR EFFLUENT TREATMENT PLANTS …

Generally, in the ,dyeing, industry, effluents are highly ,alkaline, and require the addition of acid. However, provision should be made to be able to add both acid and alkali, as some ,dyeing, processes may give acid effluents and addition of alkali may be needed (Khan, 2006).

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, ...

TECHNOLOGY FACT SHEETS FOR EFFLUENT TREATMENT PLANTS …
TECHNOLOGY FACT SHEETS FOR EFFLUENT TREATMENT PLANTS …

Generally, in the ,dyeing, industry, effluents are highly ,alkaline, and require the addition of acid. However, provision should be made to be able to add both acid and alkali, as some ,dyeing, processes may give acid effluents and addition of alkali may be needed (Khan, 2006).

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

volume of ,wastewater, into the environment, most of which is untreated. 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

Textile Dyes: Dyeing Process and Environmental Impact ...
Textile Dyes: Dyeing Process and Environmental Impact ...

The ,dyeing, process involves three steps: preparation, ,dyeing, and finishing, as follows: Preparation is the step in which unwanted impurities are removed from the fabrics before ,dyeing,. This can be carried out by cleaning with aqueous ,alkaline, substances and detergents or by applying enzymes.

Textile Dyes: Dyeing Process and Environmental Impact ...
Textile Dyes: Dyeing Process and Environmental Impact ...

The ,dyeing, process involves three steps: preparation, ,dyeing, and finishing, as follows: Preparation is the step in which unwanted impurities are removed from the fabrics before ,dyeing,. This can be carried out by cleaning with aqueous ,alkaline, substances and detergents or by applying enzymes.

Wastewater classification - Knowledge - Gentos Measurement ...
Wastewater classification - Knowledge - Gentos Measurement ...

For example, dye factories discharge both ,acidic wastewater and alkaline wastewater,. Due to the differences in fabrics and dyes in textile printing and ,dyeing wastewater,, the pollutants and pollution effects will be very different. Even the ,wastewater, discharged from a set of production equipment may contain several pollutants at the same time.

The degradation of nonylphenol ethoxylates in the alkaline ...
The degradation of nonylphenol ethoxylates in the alkaline ...

The degradation of nonylphenol ethoxylates( NPEO),with a concentration of 6. 25 ~ 12. 5 mg·L-1in the simulated ,alkaline, denim ,dyeing wastewater,,was investigated. The results of anaerobic batch experiment showed that the total concentration of NP and short-chain NPEO( NP( 1 ~ 3) EO)was around 500 ~ 900 μg·L-1although the removal efficiency of total NPEO was more than 50%.

Removal of Textile Dye Acid Green 1 from Wastewater by ...
Removal of Textile Dye Acid Green 1 from Wastewater by ...

as ,acidic,, ,alkaline,, reactive, direct can be found in the environment. These compounds due to their chemical structure are characterized by high toxicity, mutagenicity and carcinogenic nature [6]. The main aim of the present study is investigation of a commercial activated carbon application for removal of Acid Green 1 (AG1) from aqueous ...

Salt Free Dyeing of Cotton Fabric with Reactive Dyes ...
Salt Free Dyeing of Cotton Fabric with Reactive Dyes ...

The typical textile dye ,wastewater, composition is quite complex. ... Kunal (2013),Salt Free ,Dyeing, Design with ,Acidic, (Neucleophilic ,Dyeing, Method) ,and Alkaline, (Electrophilic ,Dyeing, Method) Process on Pure Cotton Fabric by Using Reactive Dye et al., ...

Aluminum production classification of acidic waste water ...
Aluminum production classification of acidic waste water ...

31/3/2016, · Aluminum production first from the oxidation of ,acidic waste water, workshop pickling process, neutralization, oxidation process of spraying, the disposal of degreasing, pickling process, during which are rich in a variety of harmful substances or heavy metal salts.Acid is not the same as the mass fraction is large, low less than l %, higher than…

Degradation of dyeing wastewater by gas-liquid gliding arc ...
Degradation of dyeing wastewater by gas-liquid gliding arc ...

see more details of ,dyeing wastewater, was ,alkaline, and subalkalic, HCO 3-and CO 3 2-formed in solution mainly, resulting in decreasing COD removal rate. When pH was strong ,acidic,, H 2 CO 3 and CO 2 existed in the solution, and the removal rate of COD did not have an impact.

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 ...

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, ...

A Study on the Solutions of Environment Pollutions and ...
A Study on the Solutions of Environment Pollutions and ...

29/6/2020, · ,dyeing,, such as phenol, can add flavor and odors [4]. The textile industry often releases highly polluted and highly ,alkaline, or ,acidic, and coloring ,wastewater,. They contain toxic substances such as chlorine, chromium, ,alkaline, compounds, zinc, and copper. Various dyes and some of their aromatic

Textile Dyeing Wastewater Dyeing Wastewater Treatment 93 1 ...
Textile Dyeing Wastewater Dyeing Wastewater Treatment 93 1 ...

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 and BOD concentration as well as much more …

Color Removal Treatment of Dyeing Wastewater by Method of ...
Color Removal Treatment of Dyeing Wastewater by Method of ...

This paper is basing on the study of the color removal treatment of simulated dyestuffs ,wastewater, with three-dimensional-electrode method.The mechanism of treatment by three-dimensional-electrode method is studied,and the operational parameters,including applied aeration,packed materials and their weight ratio,voltage,electrode gap,pH value,etc,are discussed.The study shows the following ...

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