The Experimental Study Of The Alternating Electromagnetic Field Theory Applied To Algae Removal

With the development of economy,the relationship between environment and humanity is becoming increasingly severe.The large amount of industrial water leads to the eutrophication of the water.The most common result is the massive algal blooms in the water.Some of these algae produce odors,some produce toxins,and cause huge losses and disasters to humans and the natural world.So,it is necessary to pay attention to this and design corresponding products to inhibit the growth of algae.Based on the comprehensive analysis of the algal removal techniques,this paper proposes a new technology to remove algae.Firstly,this article analyzes and compares the current research situation of algae removal at home and abroad,and draws the limitations of various methods.Secondly,studying the influence of magnetic field on cells,and proposing a new theory of alternating algae using alternating triangular wave to produce alternating magnetic field by inductance,and carried out a series of simulation and analysis of the magnetic field state and current form based on MAXWELL and MATLAB.Then,a set of generating device which can produce stable high frequency triangular wave is designed.It uses a full-bridge inverter to feed the RL load to generate a triangular wave,and the control system is implemented using a MC9S12XS128 microcomputer,and the test of waveform performance is good at each frequencies.To prove the performance of the entire system,an experimental platform is built based on theoretical analysis.Through comparison experiments and microscopic investigations on the removal efficiency of algae at various frequencies,and compared to the algae in normal growth,the correctness of the theory and the feasibility of the system were verified.It means that the algae removal device,designed by this paper,has a certain positive effect on the study of algae removal,which can provide some information for future research.Finally,the future algae removal device is prospected,and the important contents of this paper are summarized.