scholarly journals Chemical Pre-Treatment of Anionic Surfactants Contaminated Waste Water at Enaspol A. S. using H2O2/UV Light Waste Water Pre-Treatment Method

2013 ◽  
Vol 03 (04) ◽  
Author(s):  
Banyaladzi D. Paphane
Keyword(s):  
Waste Water ◽  
Anionic Surfactants ◽  
Uv Light ◽  
Treatment Method ◽  
Pre Treatment ◽  
Contaminated Waste

scholarly journals An ecological treatment method for ifosfamide contaminated waste water resulting from oncological therapy

2020 ◽  
Vol 65 (1) ◽  
pp. 267-277
Author(s):  
Valentin Ordodi ◽  
◽  
Ana-Maria Pană ◽  
Alina Dumitrel ◽  
Daniel Hădărugă ◽  
...  
Keyword(s):  
Waste Water ◽  
Treatment Method ◽  
Oncological Therapy ◽  
Ecological Treatment ◽  
Contaminated Waste

EELS characterization of “Smut” layer films on steel surface prepared for chrome plating by anodic etching

1995 ◽  
Vol 53 ◽  
pp. 538-539
Author(s):  
E Y. Wang ◽  
J. T. Cherian ◽  
A. Madsen ◽  
R. M. Fisher
Keyword(s):  
Steel Surface ◽  
Surface Preparation ◽  
Treatment Method ◽  
Chrome Plating ◽  
Transmission Electron ◽  
Alloy Steels ◽  
Pre Treatment ◽  
Hard Chrome ◽  
Electron Energy Loss

Many steel parts are electro-plated with chromium to protect them against corrosion and to improve their wear-resistance. Good adhesion of the chrome plate to the steel surface, which is essential for long term durability of the part, is extremely dependent on surface preparation prior to plating. Recently, McDonnell Douglas developed a new pre-treatment method for chrome plating in which the steel is anodically etched in a sulfuric acid and hydrofluoric acid solution. On carbon steel surfaces, this anodic pre-treatment produces a dark, loosely adhering material that is commonly called the “smut” layer. On stainless steels and nickel alloys, the surface is only darkened by the anodic pre-treatment and little residue is produced. Anodic pre-treatment prior to hard chrome plating results in much better adherence to both carbon and alloy steels.We have characterized the anodic pre-treated steel surface and the resulting “smut” layer using various techniques including electron spectroscopy for chemical analysis (ESCA) on bulk samples and transmission electron microscopy (TEM) and electron energy-loss spectroscopy (EELS) on stripped films.

Binary MOF of iron and copper for treating ciprofloxacin contaminated waste water by integrated technique of adsorption and photocatalytic degradation

2021 ◽  
Author(s):  
Aditi Chatterjee ◽  
Amiya K Jana ◽  
Jayanta Kumar Basu
Keyword(s):  
Waste Water ◽  
Water Pollution ◽  
Photocatalytic Degradation ◽  
Metal Organic Framework ◽  
Single Step ◽  
New Approach ◽  
Metal Organic ◽  
Integrated Technique ◽  
Contaminated Waste ◽  
Control Water

Adsorption assisted photocatalysis is a new approach to control water pollution. A novel metal organic framework MIL 53(Fe-Cu) was formulated by a single step solvothermal route. The newly developed MOF...

scholarly journals The effect of drying temperature on the properties of gelatin from carps (Cyprinus carpio) skin

2019 ◽  
Vol 37 (No. 4) ◽  
pp. 246-251 ◽  
Author(s):  
Joanna Tkaczewska ◽  
Maciej Wielgosz ◽  
Piotr Kulawik ◽  
Marzena Zajac
Keyword(s):  
Cyprinus Carpio ◽  
Freeze Drying ◽  
Treatment Method ◽  
Thermal Hydrolysis ◽  
Gel Properties ◽  
Drying Temperature ◽  
Freeze Dried ◽  
Different Temperatures ◽  
Pre Treatment ◽  
Hydrolysis Of

The influence of drying temperature on the characteristics and gel properties of gelatine from Cyprinus carpio L. skin was studied. Gelatine was extracted from the carp skin using NaOH and ethanol pre-treatment method, extracted in water in 45°C and then dried in 4 different temperatures: 50, 70, 80°C and freeze-dried. The  electrophoresis and functional properties of gelatines were investigated. Freeze drying allowed to obtain a high gelling force, and all other methods did not give satisfactory results. The proteins in gelatines dried at higher temperatures separated by electrophoresis gave severely blurred bands. It may be explained by thermal hydrolysis of collagen fibrils. Freeze drying is the only effective method for drying this product, which can be used in industry.

Development of an MSFIA-MPFS pre-treatment method for radium determination in water samples

Talanta ◽  
2007 ◽  
Vol 71 (3) ◽  
pp. 1172-1179 ◽  
Author(s):  
Y. Fajardo ◽  
E. Gómez ◽  
F. Garcias ◽  
V. Cerdà ◽  
M. Casas
Keyword(s):  
Water Samples ◽  
Treatment Method ◽  
Pre Treatment

scholarly journals Improvement of waste water quality by application of mixed algal inocula

2018 ◽  
Vol 53 (1) ◽  
pp. 77-82
Author(s):  
MA Riaz ◽  
B Ijaz ◽  
A Riaz ◽  
M Amjad
Keyword(s):  
Waste Water ◽  
Experimental Treatment ◽  
Total Coliform ◽  
Post Treatment ◽  
Coliform Bacteria ◽  
Physiochemical Parameters ◽  
Pollutant Concentrations ◽  
Pre Treatment ◽  
Wastewater Samples ◽  
The One

Present study aim to investigate application of microalgae for improvement of physiochemical parameters of waste water and improvement of treatment process through reducing the pollutant concentrations including coliform bacteria through their ability to uptake nutrients. Aquatic cultures were conducted in container with dimensions of 1.5×3sq ft. and wastewater samples 5 Litre samples were collected in plastic cans from Sukhnar drain and algal samples were collected from Bhaini Sigyain Village near Ravi Siphon, Lahore. The one experimental treatment lasted for 10 days to make 50% 5 liter water added concentration and 200g of inocula of algae were grown in wastewater container for experiments to optimize at room temperature as local outdoor cultures conditions for wastewater treatment. Total experiment repeated thrice and completed in 30 days. Results show that treatments improved the physiochemical parameter after week. Turbidity (NTU), total suspended solids (mg/L), total dissolved solids (mg/L), nitrate (mg/L), phosphate (mg/L) decrease (P < 0.05) after treatment. However, pH not significantly decreases (P≥ 0.05) pre-treatment values 6.56±0.05 (mg/L) and post-treatment 6.53± 0.057(mg/L). Maximum total coliform disinfection (P < 0.05) was indicated with 200 g of algae was pre-treatment 1602± 6.8 (MPN) and post treatment 1447±39.5 (MPN) observed.Bangladesh J. Sci. Ind. Res.53(1), 77-82, 2018

scholarly journals Novel pre-treatment method for seawater reverse osmosis: Fibre media filtration

Desalination ◽  
2010 ◽  
Vol 250 (2) ◽  
pp. 557-561 ◽  
Author(s):  
J.J. Lee ◽  
M.A.H. Johir ◽  
K.H. Chinu ◽  
H.K. Shon ◽  
S. Vigneswaran ◽  
...  
Keyword(s):  
Reverse Osmosis ◽  
Treatment Method ◽  
Seawater Reverse Osmosis ◽  
Pre Treatment

Fabrication and characterization of composite MoS2-TiO2 coating material

2021 ◽  
pp. 095440622110157
Author(s):  
Avinash V Borgaonkar ◽  
Ismail Syed ◽  
Shirish H Sonawane
Keyword(s):  
Bond Strength ◽  
Treatment Method ◽  
Optical Microscope ◽  
Scratch Resistance ◽  
Substrate Material ◽  
Coating Film ◽  
Tribological Behaviour ◽  
Molybdenum Disulphide ◽  
Before And After ◽  
Pre Treatment

Molybdenum disulphide (MoS2) is a popularly used solid lubricant in various applications due to its superior tribological behaviour. However, it possesses poor wear resistance which requires further improvement. In the present study efforts have been made to enhance the tribological properties of pure MoS2 coating film by doping TiO2 nanoparticles as a reinforcement material. The Manganese phosphating is selected as a pre-treatment method to improve the bond strength between coating and substrate. The coating is bonded with the substrate material employing sodium silicate as a binder. The effects of wt. % of TiO2 onto the mechanical properties of composite MoS2-TiO2 coating such as hardness and bond strength have been studied. In addition coating microstructure before and after experimental test was studied using optical microscope and scanning electron microscope. It was also found that with increase in wt. % addition of TiO2 upto 15% into MoS2 base matrix, the hardness of coating increases proportionally. Beyond 15 wt. % addition of TiO2, the coating becomes brittle in nature. This leads to reduction in the scratch resistance.

Sign in / Sign up

Export Citation Format

Share Document