Effect of a magnetic water treatment on homogeneous and heterogeneous precipitation of calcium carbonate

2006 ◽  
Vol 40 (10) ◽  
pp. 1941-1950 ◽  
Author(s):  
Alimi Fathi ◽  
Tlili Mohamed ◽  
Gabrielli Claude ◽  
Georges Maurin ◽  
Ben Amor Mohamed
2018 ◽  
Vol 178 ◽  
pp. 09001
Author(s):  
Alexey Andrianov ◽  
Evgeny Orlov

Reverse osmosis is widely used technology for water desalination. The main problem with reverse osmosis is scaling which reduces the flow and selectivity of membranes. Normally, to prevent salt precipitation, chemicals are added to the feed water or water softening is applied. The literature data on the effect of magnetic treatment on the structure and properties of water and dissolved salts showed that there is no consensus among researchers on the mechanism of magnetic field action to prevent calcium deposits formation. The purpose of current work was to study the effect of magnetic water treatment on the rate of calcium carbonate scale formation on reverse osmosis membranes. Scaling tests were carried out on tap water using the spiral wound module with reverse osmosis membranes. Magnetic treatment efficiency was evaluated by comparison of scaling rate values (amount of calcium carbonate scales accumulated in membrane module) determined throughout experiments with and without magnetic device. The results obtained do not confirm the effect of magnetic treatment on calcium carbonate precipitate formation.


Langmuir ◽  
1989 ◽  
Vol 5 (3) ◽  
pp. 861-867 ◽  
Author(s):  
Ruth E. Herzog ◽  
Qihong Shi ◽  
Jay N. Patil ◽  
Joseph L. Katz

2021 ◽  
Vol 281 ◽  
pp. 111872
Author(s):  
Teresa Castelo-Grande ◽  
Paulo A. Augusto ◽  
Javier Rico ◽  
Jorge Marcos ◽  
Roberto Iglesias ◽  
...  

2017 ◽  
Vol 109 ◽  
pp. 38-43
Author(s):  
R. Rhodes Trussell ◽  
John D. Kenny ◽  
David R. Hokanson

2020 ◽  
Vol 5 (1) ◽  
pp. 30
Author(s):  
Ainun Nikmah

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian air minum dan herbal berbasis magnetic water treatment terhadap performa ayam pedaging. Penelitian ini dilaksanakan dengan menggunakan metode eksperimental dengan menggunakan Rancangan Acak Lengkap dengan 5 perlakuan dan 5 ulangan. Perlakuan terdiri atas : Perlakuan Kontrol (P0); Air magnetisasi selama 30 menit tanpa pemberian herbal (P1); Air + herbal sebanyak 1,5 ml/l air minum  kemudian di magnetisasi selama 30 menit (P2); Air + herbal sebanyak 2,5 ml/l air minum  kemudian di magnetisasi selama 30 menit (P3); Air + herbal sebanyak 3,5 ml/l air minum  kemudian di magnetisasi selama 30 menit (P4). Data yang didapatkan kemudian dianalisis menggunakan sidik ragam (ANOVA). Hasil dari penelitian ini menunjukkan bahwa P0, P1, P2, dan P3 tidak memberikan pengaruh terhadap konsumsi pakan, konsumsi air minum, pertambahan bobot badan, konversi pakan dan mortalitas. Pemberian air minum dan herbal dosis 3,5 ml/liter air minum (P4) memberikan pengaruh terhadap pertambahan bobot badan. Kesimpulan dari penelitian ini bahwa herbal magnetisasi dapat diberikan dengan dosis 3,5 ml/liter air minum


1955 ◽  
Vol 2 (10) ◽  
pp. 312-316 ◽  
Author(s):  
J. Laureys ◽  
J. Van Muylder ◽  
M. Pourbaix

Sign in / Sign up

Export Citation Format

Share Document