Abstract
The research includes study the effect of three factors (voltage, rotational speed, acidity) with time to remove or reduce the percentage of algae in uncovered water tank; these factors studied combined with each other or individually. the removal percentage of algae increased by increasing the electrical voltage, Best result of removal was obtained when using two factors, change in the voltage (4, 8,12 and 16) vole /cm and speed of rotation (50, 100, 150 and 200) rpm . The rate of removal of algae was 100% at voltage 16 volts with a rotation speed (200) rpm and 40 min. The values extracted for algae removal showed that the best result was (100%) at (voltage 16 vole/cm and acidity with pH 4) with time 30 min. It can be conclude, the best method to remove or reduction of algae in uncovered tanks was physical one as a compared with the other methods like chemical or biological methods. Therefore, it needs additional requirements unlike physical strategies decrease, the cost and time required to evacuate green growth.
Highlights
Electrocoagulation has a long history as a water and wastewater treatment technology having been employed to remove a wide range of pollutants [Naje and Abbas,2013]
The results showed that the removal efficiency increased with increasing temperature and the same efficiency obtained with low current density with long treatment time, or high current density with short time of treatment. [Mikko, 2012] have connected electrocoagulation in crude water treatment and Wastewater applications the surface water utilized as a part of this examination contained high convergences of common natural issue (NOM)
The action of electric voltage on the elimination efficiency and effectiveness of algae shown in frame (4.2) with [40] min for each run
Summary
Electrocoagulation has a long history as a water and wastewater treatment technology having been employed to remove a wide range of pollutants [Naje and Abbas,2013]. The impacts of different factors, such as pH, flow rate and current density on dye and COD removal examined. The experimental results showed that the removal of organic matter increased with increasing current density. The effects of several parameters such as conductivity, pH, current density, temperature and spacing between electrodes studied. The influence of the operating time, initial concentration of chromium and chemical oxygen demand and current density was studied. A comparison between iron and aluminum electrodes ,where used in electrocoagulation process for the removal of Reactive Red 24 from synthetic wastewater was carried out by [Ghalwa,et al ,2016] The effects of parameter such as pH, initial dye concentration, current density, distance between electrodes, electrolyte type and concentration of electrolyte on the removal efficiency of dye and COD were investigated. Materials and Methods and 83.8%, by using aluminum and the optimum conditions were: pH of 7.2, distance between electrodes of 0.8 cm, NaCl concentration of 2500 mg/L and temperature of 20oC
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