scholarly journals Expanded clay aggregates multi-functionality for water purification: Disinfection and adsorption studies

2021 ◽  
Vol 8 (1) ◽  
pp. 1883232
Author(s):  
Gina O. Ihekweme ◽  
Ifeyinwa I. Obianyo ◽  
Esther N. Anosike-Francis ◽  
Victoria N. Anyakora ◽  
O. S. Odusanya ◽  
...  
Keyword(s):  
Water Purification ◽  
Adsorption Studies ◽  
Clay Aggregates

Fouling Is the Beginning: Upcycling Biopolymer-Fouled Substrates for Fabricating High-Permeance Thin-Film Composite Polyamide Membranes

2020 ◽  
Author(s):  
Ruobin Dai ◽  
Hongyi Han ◽  
Tianlin Wang ◽  
Jiayi Li ◽  
Chuyang Y. Tang ◽  
...  
Keyword(s):  
Thin Film ◽  
High Pressure ◽  
End Of Life ◽  
Water Purification ◽  
Low Pressure ◽  
Polymeric Membranes ◽  
Membrane Recycling ◽  
Film Composite ◽  
Thin Film Composite ◽  
First Time

Commercial polymeric membranes are generally recognized to have low sustainability as membranes need to be replaced and abandoned after reaching the end of their life. At present, only techniques for downcycling end-of-life high-pressure membranes are available. For the first time, this study paves the way for upcycling fouled/end-of-life low-pressure membranes to fabricate new high-pressure membranes for water purification, forming a closed eco-loop of membrane recycling with significantly improved sustainability.

Adsorption Studies of Methylene Blue Dye using Biosorbents

2018 ◽  
Vol 8 (3) ◽  
pp. 502-513
Author(s):  
Saravanan Narayanan ◽  
Rathika Govindasamy
Keyword(s):  
Methylene Blue ◽  
Blue Dye ◽  
Methylene Blue Dye ◽  
Adsorption Studies

DISINFEKSI UNTUK PROSES PENGOLAHAN AIR MINUM

2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Nusa Idaman Said
Keyword(s):  
Drinking Water ◽  
Water Purification ◽  
Distribution System ◽  
Residual Effect ◽  
Drinking Water Treatment ◽  
Disinfection Byproducts ◽  
Water Disinfection ◽  
Pathogenic Microorganisms ◽  
Microbiological Contamination ◽  
Disinfection Process

Water disinfection means the removal, deactivation or killing of pathogenic microorganisms. Microorganisms are destroyed or deactivated, resulting in termination of growth and reproduction. When microorganisms are not removed from drinking water, drinking water usage will cause people to fall ill. Chemical inactivation of microbiological contamination in natural or untreated water is usually one of the final steps to reduce pathogenic microorganisms in drinking water. Combinations of water purification steps (oxidation, coagulation, settling, disinfection, and filtration) cause (drinking) water to be safe after production. As an extra measure many countries apply a second disinfection step at the end of the water purification process, in order to protect the water from microbiological contamination in the water distribution system. Usually one uses a different kind of disinfectant from the one earlier in the process, during this disinfection process. The secondary disinfection makes sure that bacteria will not multiply in the water during distribution. This paper describes several technique of disinfection process for drinking water treatment. Disinfection can be attained by means of physical or chemical disinfectants. The agents also remove organic contaminants from water, which serve as nutrients or shelters for microorganisms. Disinfectants should not only kill microorganisms. Disinfectants must also have a residual effect, which means that they remain active in the water after disinfection. For chemical disinfection of water the following disinfectants can be used such as Chlorine (Cl2),  Hypo chlorite (OCl-), Chloramines, Chlorine dioxide (ClO2), Ozone (O3), Hydrogen peroxide etch. For physical disinfection of water the following disinfectants can be used is Ultraviolet light (UV). Every technique has its specific advantages and and disadvantages its own application area sucs as environmentally friendly, disinfection byproducts, effectivity, investment, operational costs etc. Kata Kunci : Disinfeksi, bakteria, virus, air minum, khlor, hip khlorit, khloramine, khlor dioksida, ozon, UV.

Adsorption Studies of Basic Green 4 from Aqueous Solution on Ca2+Exchanged Clay

2011 ◽  
Vol 48 (5) ◽  
pp. 366-374 ◽  
Author(s):  
F. K. Bangash ◽  
S. Alam ◽  
M. Khan
Keyword(s):  
Aqueous Solution ◽  
Adsorption Studies

ELECTROKINETIC PROPERTIES AND SANITARY-HYGIENIC SAFETY OF WATER BIODISPERSIONS DURING ELECTROPROCESSING

2017 ◽  
pp. 123-126
Author(s):  
S. V. Vorobjeva ◽  
O. V. Smirnov ◽  
V. O. Smirnova ◽  
T. V. Semenova
Keyword(s):  
Water Purification ◽  
Electrokinetic Properties

A correlation between the electrokinetic properties of biodispersion and the possibility of increasing the efficiency of water purification in electroprocessing is shown.

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