Application of Multi-level Electromagnetic Fields for Removal of Algae Bloom (Euglena sanguinea)
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Abstract
The objective of this research was to study a technique for removal of algae bloom (Euglena sanguinea) by using multi-level electromagnetic fields (MLEMF). With this technique, an electrical power was changed to be an electric field by an electronic control. An electron was transferred by electric field. The experiment was stimulated in a 10 L lab scale. The voltage of system could be adjustable from 0 to 60 Vac and frequency was 10 kHz. The research aimed to study the physical, biological, and chemical properties of water. After treating by MLEMF, it was found that the membrane crashed and collapsed even the organs deformed. Moreover, treatment efficiencies of SS, turbidity, COD, TN and TP represented to 89%, 96%, 73%, 67%, and 94%, respectively. The reaction of algae bloom removal was related to concentration of algae according to time followed by the first order reaction with a rate constant of 0.0004 s -1. This technique can be applied in the production of new water supply process. The advantage
of this technique is no chemical involved. MLEMF technology proposes clean water without chemical color residues.
Key words: Multi-level electromagnetic fields (MLEMF), algae bloom, Euglena sanguinea, electric current, voltage
* Corresponding author: E-mail: s6060202@kmitl.ac.th
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