Solar electrochemical defluoridation water purifier

Abstract

A solar electrochemical defluoridation water-purifier comprises a water storage unit, an electrochemical defluoridation unit and a solar cell system for power supply. The electrochemical defluoridation unit comprises an outer aluminum drum, a filter layer and an inner aluminum drum. A purified water cavity is formed between the inner aluminum drum and the filter layer, and a waste water cavity is formed between the filter layer and the outer aluminum drum. The inner and outer aluminum drums are insulated from each other and are respectively connected with the solar cell system such that the inner and outer aluminum drums become positive and negative electrodes of the electrochemical defluoridation unit. The water storage unit is provided with a water inlet. The water storage unit is communicated with the waste water cavity through a pipeline, and the purified water cavity is communicated with the water outlet. According to the invention, solar energy is used as a power source of an electrochemical reaction, fluorine is removed based on principles of electrochemistry, and aluminium ions generated by electrolysis are used for depositing and separate fluoride ions in water. Thus, domestic drinking water which accords with the sanitary standard is obtained. The solar electrochemical defluoridation water-purifier has advantages of simple equipment, low cost and good water purification efficiency, can be placed on a balcony or suspended on an outer wall, and is applicable to home, an office space and a public place.

Description

technical field [0001] The invention belongs to the technical field of solar electrochemical technology, and in particular relates to a solar electrochemical fluorine removal water purifier. Background technique [0002] Nowadays, there are many methods of defluoridation of drinking water. Adsorption and ion exchange methods are commonly used in drinking water: such as defluoridation carbon (bone charcoal) water purification component method; activated alumina method; zeolite (molecular sieve) and ion resin exchange methods; reverse osmosis and electrodialysis. [0003] None of the above methods is suitable for all kinds of economic conditions and different types of regions. Each has its own advantages and disadvantages. Some methods work well, but the cost is high, the technology is high, and a large amount of capital is required. At the same time, continuous power guarantee is required. , such as reverse osmosis, electrodialysis, etc.; some methods have low investment and...

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Problems solved by technology

[0003] None of the above methods is suitable for all kinds of economic conditions and different types of regions. Each has its own advantages and disadvantages. Some methods work well, but the cost is high, the technology is high, and a large amount of capital is required. At the same time, continuous power guarantee is required. , such as reverse osmosis, electrodialysis, etc.; some methods have low investment and operating costs, but are affected by separation measures and have limited efficiency, and cannot fully remove fluoride in water, such as aluminum sulfate method; when using bone char and other filter materials, Unless the residual fluoride is continuously monitored, it is difficult to find the breakthrough point of water fluoride exceeding the standard, causing the defluoridation agent to fail

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