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What's the crime of discharging acidic and alkaline 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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What's the crime of discharging acidic and alkaline wastewater
Adsorption behaviors of acid dye by amphoteric chitosan ...
Adsorption behaviors of acid dye by amphoteric chitosan ...

Chitosan is the only natural cationic polymer, which can be used as an excellent non-toxic biosorbent for almost all anionic dyes including ,acid dye,, reactive ,dye, and direct ,dye, (Zhao et al. 2012). However, raw chitosan presents some major difficulties of unsatisfactory mechanical properties and dissolution in acidic media in the adsorption process ( Kyzas & Lazaridis 2009 ).

Reclamation of acid dye bath wastewater: Effect of pH on ...
Reclamation of acid dye bath wastewater: Effect of pH on ...

However, acidic textile wastewaters can be also found as reported by Capar et al. (2006), which showed ,acid dye, bath wastewaters of carpet manufacturing industry with pH values around 5.0.

Effect of dye structure on color removal efficiency by ...
Effect of dye structure on color removal efficiency by ...

1/2/2021, · PAC removed color effectively from reactive ,dye wastewater, containing phthalocyanine and azo chromophores, with the same auxochromes (–SO 3 Na, –Cl, and –NH 2). PAC also effectively removed color from the real raw reactive dyes ,wastewater,, with removal efficiency as high as 78%.

CN103755088A - Treatment method of acid dye mother liquor ...
CN103755088A - Treatment method of acid dye mother liquor ...

According to the treatment method, the collected ,acid dye, mother liquor ,wastewater, is subjected to acidification, microelectrolysis, flocculation, concentration and crystallization and separation, thereby obtaining high-quality sodium salt damp products, and the sodium salt damp products can be recycled to industrial production after being dried, and distilled water and cooled water can be recycled to …

Sodium Bisulfite production - Chemical plant design ...
Sodium Bisulfite production - Chemical plant design ...

10/3/2010, · Sodium metabisulfite is also ,used, to reduce chlorine in ,industrial, process water and ,wastewater,. In the textile industry, ,sodium bisulfite, containing metabisulfite ,is used, as a bleach, especially for wool (qv); as an antichlor after bleaching of nylon, for reducing vat dyes; and in rendering certain other dyes soluble.

Modeling and optimization of acid dye manufacturing ...
Modeling and optimization of acid dye manufacturing ...

In the present study, Fenton's oxidation of a chromium complex disazo ,dye, (,Acid, Blue 193) synthesis ,wastewater, was evaluated, modeled and optimized by employing Central Composite Design. Within this context, the individual and interactive effects of critical process parameters such as Fe2+, H2O2 concentrations, initial chemical oxygen demand (COD) and reaction time was …

Staining - Environmental leverage Inc
Staining - Environmental leverage Inc

6) Wash gently with tap water for 5 seconds approximately to stop the action of the decolorizer. 7) Flood with safranin and leave it on the specimen for 1 minute. 8) Wash the slide very lightly with water and let it air dry. 9) Observe and examine under the microscope using the bright field oil immersion.

A Review on Heavy Metal Ions and Containing Dyes Removal ...
A Review on Heavy Metal Ions and Containing Dyes Removal ...

Chrome dyes or ,acid, mordant dyes are ,acid, dyes, water‐soluble, mainly used for dyeing fibres like wool, silk and polyamides the mordant dyes ,have, no affinity for textile fibres; therefore, they attached to the fibre with the help of mordants which ,have, affinity both for the ,dye, and the fibre.

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

27/11/2018, · The artificial ,wastewater, consisted of glucose, ethanol, sodium acetate, ammonium chloride, potassium dihydrogen phosphate, dipotassium phosphate, calcium chloride dihydrate, magnesium sulphate heptahydrate, ethylenediaminetetraacetic ,acid,, ,dye, mixture (sumifix black EXA, sumifix navy blue EXF and synozol red K-4B) and 1 ml/l of trace element solution.

Dyes and their removal technologies from wastewater: A ...
Dyes and their removal technologies from wastewater: A ...

1/1/2021, · The membrane filtration can be different types such as reverse osmosis, ultrafiltration, and nanofiltration. In the former process, ,dye wastewater, is allowed via extremely thin-pored membrane and, therefore, requires high pressure for separation of treated water from pollutants. Moreover, the membrane often gets clogged by ,dye, molecules.

Experimental study of dye removal from industrial ...
Experimental study of dye removal from industrial ...

5/12/2012, · ,Wastewater, with, acid dye, treated by RO or NF membranes result in lower rejection and higher permeates flux than, wastewater, with reactive dyes. It was found that the order of effect of the operating variables on dye removal of NF and RO membranes was in …

Decolorization of an acidic dye from synthetic wastewater ...
Decolorization of an acidic dye from synthetic wastewater ...

In this research, sludge of Jalaliyeh ,water treatment plant, in Tehran was used as an alternative coagulant for the removal of a specific type of ,acid dye, (,acid, red 119 (AR119)). For this purpose, the effect of initial pH, coagulant dose and initial ,dye, concentration on ,dye, removal efficiency were investigated. Results showed that the ,dye, removal rates were largely dependent on pH.

(544gg) Photocatalytic Degradation of Acid Violet 7 Dye ...
(544gg) Photocatalytic Degradation of Acid Violet 7 Dye ...

wastewater, during this process. The amount of discarded ,dye, by industrial use depends on the kind of ,dye,, which can range between 2% for basic dyes and 50% for azo dyes [1]. Accordingly, organic contaminants such as dyes are considered an important group of synthetic dyes, since they are xenobiotic chemical

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

Wastewater,-Based Epidemiology; ... If the multiple cloning sites on both the parent and destination vectors contain two restriction sites in common that ,do, not occur within your insert, ,you have, a very straightforward subcloning process. ... Diamond™ Nucleic ,Acid Dye,. Cat.#

Polyacrylamide-Phytic Acid-Polydopamine Conducting Porous ...
Polyacrylamide-Phytic Acid-Polydopamine Conducting Porous ...

Various techniques ,have, been employed for treatment of ,dye,-containing ,wastewater,, including catalytic ... A. A. Anionic ,dye, (,acid, green 25) adsorption from water by using polyaniline nanotubes ...

In vivo and in vitro efficient textile wastewater ...
In vivo and in vitro efficient textile wastewater ...

Self-assembled fungal pellets containing Aspergillus niger ,have, great potential in ,wastewater, treatment because they are easily separated from ,dye,-containing ,wastewater,, and exhibit good decoloration properties and strong ,acid,/base tolerances …

CN103755088A - Treatment method of acid dye mother liquor ...
CN103755088A - Treatment method of acid dye mother liquor ...

The invention discloses a treatment method of ,acid dye, mother liquor ,wastewater,. According to the treatment method, the collected ,acid dye, mother liquor ,wastewater, is subjected to acidification, microelectrolysis, flocculation, concentration and crystallization and separation, thereby obtaining high-quality sodium salt damp products, and the sodium salt damp products …

In vivo and in vitro efficient textile wastewater ...
In vivo and in vitro efficient textile wastewater ...

This causes significant environmental challenges. 5 Many materials (such as organic and inorganic film, cloth, copper mesh, aerogels and bacterials) ,have, been applied in ,wastewater, treatment. 6–8 Various methods ,have, been developed to remove dyes from ,wastewater, and adsorption has become a commonly adopted technology. 9–12 Acidic anionic dyes are currently used for dying natural fibers, such as wool, …

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