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Treatment of acid wastewater from factories

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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Treatment of acid wastewater from factories
WASTEWATER CHARACTERISTICS IN TEXTILE FINISHING MILLS
WASTEWATER CHARACTERISTICS IN TEXTILE FINISHING MILLS

Wastewater, characteristics in textile finishing mills 861 Table 2. ,Wastewater, characteristics for Section 3, corresponding to Bleaching Sector (PI) Date pH NO 3-mg/L TSS mg/L Chlorides mg/L COD mgO 2/L H 2S mg/L NH 4 + mg/L NO-2 mg/L Fixed Residual mg/L BOD 5 mgO 2/L 14-07 10.5 6.1 219 100 1865 - 15.3 6.1 4231 - 16-07 9.3 2.2 135 2200 966 - 2.5 ...

Electrocatalytic Properties of a Novel β-PbO2/Halloysite ...
Electrocatalytic Properties of a Novel β-PbO2/Halloysite ...

To improve the efficiency of electrochemical degradation of ,wastewater,, lead dioxide was synthesized by a hydrothermal method with low cost, simple operation, and high conversion rate. β-PbO2/HNT composites were prepared by a hydrothermal method with Halloysite nanotubes (HNTs) and β-PbO2. The PbO2/HNT/ITO electrode was prepared by modifying the β-PbO2/HNT composite on an indium tin …

Kaimi braced tubular membrane for alkaline wastewater ...
Kaimi braced tubular membrane for alkaline wastewater ...

Printing wastewater, is highly polluted industrial ,wastewater, with high chroma, high ,acidity,,difficult to deal with. Ultrafiltration membrane system can address the treatment of this caustic ,printing wastewater, and recover lye / caustic / soda. It not only save energy consumption, but also optimize economic efficiency and production efficiency.

Pharmaceuticals and personal care products (PPCPs) in the ...
Pharmaceuticals and personal care products (PPCPs) in the ...

1/3/2017, · Analysis of surface water, sediment and mussel samples collected from San Francisco Bay, California, an urban estuary that receives ,direct discharge, from 40 municipal and industrial ,wastewater, outfalls, revealed the predominant compounds to be: triclocarban in sediment, valsartan in surface water and DEET in mussels at concentrations of 33 ng/g, 92 ng/L and 14 ng/g respectively .

cel-report - SlideShare
cel-report - SlideShare

AIMS AND OBJECTIVES The objective of the ,experiment, is to investigate the removal efficiency of total suspended solid, color intensity, turbidity and aluminum content by varying the following parameters in the production of drinking water: Coagulant dosage pH value settling time stirring speed The target of the ,experiment, is to fulfill the standard of drinking water as below: Total suspended solid : 90 mg/l Color …

Textile industry's environmental effects and approaching ...
Textile industry's environmental effects and approaching ...

Desizing effluent of starch sized cotton fabric rise the BOD values of ,wastewater, stream thoroughly 45 and at the same time, this ,wastewater, constitutes of circa 50% of the water contamination. 52 Inherent and later attached contaminations existing on textile fibers such as oil, waxes, lubricants, etc. are expelled through scouring to refine the fibers and make it hydrophilic.

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 ...

Assessment of Textile Industrial Effluent by Wastewater ...
Assessment of Textile Industrial Effluent by Wastewater ...

Wastewater, Quality Standards. Aijaz Panhwar, Khalida Faryal, Aftab Kandhro, Sofia Qaisar. Abstract- The current study was conducted in textile industrial city Karachi, Pakistanto assess the impacts of , textile industries ,wastewater, focusing on physico-chemical parameterssuch as temperature, color, pH, total hardness, biological oxygen demand,

Acid Mine Drainage and the Techniques to Cleanup this ...
Acid Mine Drainage and the Techniques to Cleanup this ...

6/5/2019, · Many recent studies have also been looking into the use of chicken eggshells as a solution because of their heavy metal removal and alkaline abilities. 14 One ,experiment, used eggshell residue and paired it with an alkaline material such as cement or limestone while also alternating the materials, it was found to reduce acidification of AMD tailings. 15 Specific tailings, the waste produced from the mine, …

What would be the downside of using carbon dioxyde to ...
What would be the downside of using carbon dioxyde to ...

The consequence is that effect on the sewage treatment plant of adding the ,acid, will disappear as the water will get to equilibrium with atmospheric CO2 during the aeration. So by adding CO2 you ...

Pharmaceutical Waste - an overview | ScienceDirect Topics
Pharmaceutical Waste - an overview | ScienceDirect Topics

H.N. Chang, in Comprehensive Biotechnology (Third Edition), 2011 2.43.4.5.1 MBRs (,Wastewater, Treatment, GE). The earliest reports of MBRs come from the late 1960s. At that time, Dorr-Oliver, Inc. developed the membrane sewage-treatment process, in which ,wastewater, flowed through a suspended growth bioreactor via rotating drum screen to externally located UF membrane modules.

Final Lab Report 17.docx - Soaps and Detergents Zachary ...
Final Lab Report 17.docx - Soaps and Detergents Zachary ...

From this data the concentration of each, waste water, was calculated using the equation M ₁ V ₁ =M ₂ V ₂ where M ₁ is the molarity (concentration) of the acid/base used in neutralization, V ₁ is the volume of that acid/base, M ₂ is the molarity of the, wastewater, (the

Textile dyeing industry: wastewater treatment and management
Textile dyeing industry: wastewater treatment and management

• Major pollutants in textile wastewaters are high suspended solids, chemical oxygen demand, heat, color, ,acidity,, and other soluble substances. • Substances which need to be removed from textile ,wastewater, are mainly COD, BOD, nitrogen, heavy metals and dyestuffs 1,2. 6.

4 management treatment of wastewater printing ink ...
4 management treatment of wastewater printing ink ...

Effluent discharge ,of printing, ink ,waste water, contains high colour, ... , ,wastewater, treatments to determine the process system of ,wastewater, treatment has been carried out.

Zinc removal from model wastewater by electrocoagulation ...
Zinc removal from model wastewater by electrocoagulation ...

1/10/2018, · Abstract. In this work, the research focused on the Zn 2+ removal from the synthetic ,wastewater, by electrocoagulation (EC) with aluminum electrodes. The effects of current density (2.1–12.5 mA/cm 2 ), initial concentration (50–2000 mg/L), solution pH (2.9–7.4) and conductivity (0.15–14.11 mS/cm) on the removal efficiency and energy consumption were ...

Elsevier Health
Elsevier Health

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diazotisation reaction and synthesis of azodyes
diazotisation reaction and synthesis of azodyes

EXPERIMENT, All the chemicas and or reagents used were of AR grade. DIAZOTIZATION REACTION Place 200 mg of sulfanilic ,acid, in a 50-ml Erlenmeyer flask. Add 60 mg of anhydrous Na2CO3 and 2-ml of water. Warm this mixture gently on the sand bath to dissolve the solids. Then, cool the solution to room temperature. Add 85 mg of NaONO (sodium nitrite).

ASTM D1067 - Standard Test Methods for Acidity or ...
ASTM D1067 - Standard Test Methods for Acidity or ...

scope: These test methods2 cover the determination of ,acidity, or alkalinity of all types of water. Three test methods are given as follows: In all of these test methods the hydrogen or hydroxyl ions present in water by virtue of the dissociation or hydrolysis of its solutes, or both, are neutralized by titration with standard alkali (,acidity,) or acid (alkalinity).

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