scholarly journals The Recent Progress in Modification of Polymeric Membranes Using Organic Macromolecules for Water Treatment

Symmetry ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 239 ◽  
Author(s):  
Saraswathi Nagandran ◽  
Pei Sean Goh ◽  
Ahmad Fauzi Ismail ◽  
Tuck-Whye Wong ◽  
Wan Rosmiza Zana Binti Wan Dagang
Keyword(s):  
Water Treatment ◽  
Water Solution ◽  
Polymeric Membranes ◽  
Treatment Technology ◽  
Physiochemical Properties ◽  
Membrane Selectivity ◽  
Membrane Morphology ◽  
Global Issue ◽  
Membrane Science

For decades, the water deficit has been a severe global issue. A reliable supply of water is needed to ensure sustainable economic development in population growth, industrialization and urbanization. To solve this major challenge, membrane-based water treatment technology has attracted a great deal of attention to produce clean drinking water from groundwater, seawater and brackish water. The emergence of nanotechnology in membrane science has opened new frontiers in the development of advanced polymeric membranes to enhance filtration performance. Nevertheless, some obstacles such as fouling and trade-off of membrane selectivity and permeability of water have hindered the development of traditional polymeric membranes for real applications. To overcome these issues, the modification of membranes has been pursued. The use of macromolecules for membrane modification has attracted wide interests in recent years owing to their interesting chemical and structural properties. Membranes modified with macromolecules have exhibited improved anti-fouling properties due to the alteration of their physiochemical properties in terms of the membrane morphology, porosity, surface charge, wettability, and durability. This review provides a comprehensive review of the progress made in the development of macromolecule modified polymeric membranes. The role of macromolecules in polymeric membranes and the advancement of these membrane materials for water solution are presented. The challenges and future directions for this subject are highlighted.

scholarly journals Review of biological processes in oil sands: a feasible solution for tailings water treatment

2016 ◽  
Vol 24 (3) ◽  
pp. 274-284 ◽  
Author(s):  
Sudipta Pramanik
Keyword(s):  
Water Treatment ◽  
Oil Sands ◽  
Feasible Solution ◽  
Extraction Process ◽  
Biological Processes ◽  
Treatment Technology ◽  
Integral Role ◽  
Water Treatment Technology ◽  
Tailings Ponds

The bitumen extraction process from Athabasca oil sands ore produces large quantities of toxic processed water as tailings. The oil industry has reduced the demand for fresh water in the extraction process by recycling this tailings water. Continual recycling increases the toxicity of tailings water many times over, and poses a serious threat to surface and groundwater quality. For a sustainable expansion of Canada’s oil sands industry, it is essential to develop a technically practicable and economically feasible tailings water treatment technology. A review was carried out to describe the integral role of biological processes in oil sands history for identifying a successor tailings water treatment technology. This study proposes the application of an entrapped cells system as a feasible solution for tailings water treatment. Bio-augmentation followed by entrapment of the microbial community indigenous to tailings ponds can be a promising tailings water treatment technology.

scholarly journals FOULING BEHAVIOR OF MODIFIED CELLULOSE ACETATE ASYMMETRIC MEMBRANES FOR DIFFERENT BRACKISH WATER TREATMENT

REAKTOR ◽  
2017 ◽  
Vol 17 (1) ◽  
pp. 43
Author(s):  
Tutuk Djoko Kusworo ◽  
B Budiyono ◽  
Ulfa Nurul Aulia Rochyani
Keyword(s):  
Water Treatment ◽  
Cellulose Acetate ◽  
Skin Layer ◽  
Cellulose Acetate Membrane ◽  
Treatment Technology ◽  
Membrane Pore ◽  
Membrane Morphology ◽  
Dope Solution ◽  
And Performance ◽  
Membrane Pore Size

Water treatment technology which is being widely developed is membrane technology as an alternative technology with sieving mechanism principle.The main purposes of this research are to investigate the effects of additives and thermal treatment on the cellulose acetate membrane morphology and performance in treating brackish water.The membrane was fabricated by preparation of dope solution consits of cellulose acetate and acetone. The membrane was casted via NIPS method using mechanic casting knife. Dope solution was prepared by varying the PEG concentration of 1 and 5wt-% and the annealing temperature at 60°C and 25°C for 10 seconds. The backwash technique was used to solve fouling mechanism in this system .The results of SEM and FTIR showed that theb higher PEG addition to the dope solution resulted in larger membrane pore size and increase the hydrophilic properties of membrane. However the higher temperature and the longer annealing timg, the skin layer of membrane become denser. The result was also shown that back wash technique can reduced fouling phenomenon in the membrane. 

scholarly journals Surface Modification of PES Hollow Fiber Membranes using Iron Oxide Particles for Water Treatment Does Particle Size Really Matter?

2021 ◽  
Vol 17 (5) ◽  
pp. 621-635
Author(s):  
Nadiene Salleha Mohd Nawi ◽  
Lau Woei Jye ◽  
Norhaniza Yusof ◽  
Noresah Said ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Particle Size ◽  
Surface Modification ◽  
Iron Oxide ◽  
Water Treatment ◽  
Polymeric Membranes ◽  
Particle Sizes ◽  
Particle Type ◽  
Iron Oxide Particles ◽  
Oxide Particles

Factors such as particle type and its loading have been previously studied in tailoring the efficiency of particles-modified polymeric membranes for water treatment. However, the role of particle sizes in membrane modification is often overlooked. 

scholarly journals APLIKASI TEKNOLOGI PENGOLAHAN AIR SEDERHANA UNTUK MASYARAKAT PEDESAAN

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Arie Herlambang ◽  
Nusa Idaman Said
Keyword(s):  
Water Treatment ◽  
Sea Water ◽  
Water Services ◽  
Treatment Technology ◽  
Domestic Industry ◽  
Water Users ◽  
Production And Distribution ◽  
Treatment Technologies ◽  
Local Water

The level of water services by PDAM (Local Water Service Company) is still 19,4% of Indonesian population. Most of them still rely on groundwater, spring, river and rain. In the big and medium cities the level of water services higher between 40 – 50 and 20 - 30% respectively, but in rural still very low. Recently many source of water is contaminated by domestic, industry, and agricultur waste due to lack of attention of water users to environment.  Beside, some dense populated areas with low sanitation fasility make many shalow well contaminated by E.coli. For improving rural water services, It needs  government policy that encourage bigger role of rural comunity to develop their ability and organization that maintain and protect source, process, production and distribution of water. Information of  Simple Water Treatment Technology is an important that must be distributed to people who live in village or remote areas,  in order to improve their knowledge. BPPT has been along time to develop many kind of water treatment technologies for treating river water, groundwater, peatwater, calcareous water,poluted water,  brachist water or even sea water to make clean water or potable water. Many of those technologies have already applied in many areas in Indonesia, and up to now BPPT still develop many kind of water treatment technologies for the future. Kata Kunci : air bersih, pengolahan air, masyarakat pedesaan. 

MASALAH DAN ALTERNATIF TEKNOLOGI PENGOLAHAN AIR UNTUK MASYARAKAT MISKIN KOTA

2018 ◽  
Vol 6 (3) ◽  
Author(s):  
Arie Herlambang
Keyword(s):  
Water Treatment ◽  
Ground Water ◽  
Potable Water ◽  
Diarrheal Disease ◽  
Low Cost ◽  
Clean Water ◽  
Treatment Technology ◽  
Alternative Technologies ◽  
The Poor ◽  
Daily Water

Clean water to poor communities who live in crowded municipal area is stillexpensive and a luxury. This condition is evidenced by the number of people whouse ground water for their daily water, because water taps still seems expensivefor them. Diarrheal disease is still relatively high for Indonesia, where nearly 16thousand people suffer from diarrhea due to poor sanitation. To help the poor inthe city, there are several alternative technologies that can be applied to publicaccess to clean water and adequate low-cost, including ground water treatmenttechnology with a filter system equipped with an ultraviolet sterilizer, or ozonegenerators, or using ultrafiltration, if possible can also use the reverse osmosismembrane that for fresh water. Arsinum is the best alternative should be chosenfor fulfilled potable water in slump area.Keywords : Sanitation, water treatment technology, portable water, low-cost, slump area

Role of nanomaterial's as adsorbent for heterogeneous reaction in waste water treatment

2021 ◽  
pp. 130596
Author(s):  
M. Sridevi ◽  
C. Nirmala ◽  
N. Jawahar ◽  
G. Arthi ◽  
Sugumari Vallinayagam ◽  
...  
Keyword(s):  
Waste Water ◽  
Water Treatment ◽  
Heterogeneous Reaction ◽  
Waste Water Treatment

scholarly journals Research Progress of Electrostatic Water Treatment Technology

2021 ◽  
Vol 831 (1) ◽  
pp. 012028
Author(s):  
Zhan Liu ◽  
Meifang Yan ◽  
Yuhua Gao ◽  
Haihua Li ◽  
Na Li ◽  
...  
Keyword(s):  
Water Treatment ◽  
Research Progress ◽  
Treatment Technology ◽  
Water Treatment Technology
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