Volume 12, Issue 4 (3-2014)                   TB 2014, 12(4): 117-124 | Back to browse issues page

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Farrokhzadeh H, Hashemi H, Amin M, Foroughi M, Jafari N. Comparison of Dual Precipitator Electrodes (with Iron and Aluminum) and Coal electrodes on physicochemical quality of water. TB. 2014; 12 (4) :117-124
URL: http://tbj.ssu.ac.ir/article-1-1828-en.html
Shahrekord University of Medical Sciences, Shahrekord, Iran , hashemi@hlth.mui.ac.ir
Abstract:   (4856 Views)

Introduction: For marketing and selling their products, water-treatment equipment vendors use commercial iron and aluminum electrodes thereby changing the quality of water and increasing soluble and suspended solids in water. Due to the lack of scientific justification for the creation of sludge and discoloration caused by water electrolysis with commercial electrodes, this study aimed to compare the chemical water quality after electrolysis with electrodes and electrode coal trade (as a control) in order to detect trick and fraud.

 Methods: After the electrolysis process with commercial electrodes (iron and aluminum combined), each electrode individually and coal (as control) on the water quality, the parameters such as hardness, alkalinity, pH, EC, TDS before and after the electrolysis were tested by standard methods. After analyzing the data, the average water quality parameters resulting from the electrolysis of various electrodes were compared.

 Results: After placing the commercial and iron-iron electrodes, pH of the samples increased significantly (p <0.05) whereas after using aluminium-aluminum electrode,

 no significant relation was identified (p >0.05). Total hardness, alkalinity, calcium and magnesium and also the trade of placing the electrode and iron electrodes increased significantly (p <0.05) and aluminum electrodes and electrode placement of the trade remains unchanged. Electrical conductivity and total dissolved solids applied to the electrodes of all types were statistically significantly increased. Color samples of the iron electrode and electrode commercial red brownish and opaque white aluminum electrodes of the electrode and the coal was not changed. Except when using coal electrodes, in all cases in which sludge was produced using iron electrodes and electrode-alone commercial green color to black and opaque white was the color of coal electrodes. These results include the not be related to the water.

Conclusion: Electrodes in water electrolysis with commercial production of paints and sludge dumping of aluminum and iron ions and leads to the production of opaque blue and black is wrong to assume, is water impurities. These electrodes were fake and the fostering of the use of the health center should be to increase public awareness and take action to collect them from the market.
 

Full-Text [PDF 214 kb]   (701 Downloads)    
Type of Study: Research | Subject: Special
Received: 2015/11/28 | Accepted: 2015/11/28 | Published: 2015/11/28

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