A Matter Of Water Control Effect Of Algae Attached To

With industrial development, the vast majority of rivers and lakes in China are subject to various degrees of pollution, water pollution has brought greater harm to human health, pollution, eutrophication has become China’s most prominent environmental problems. Eutrophication makes algal blooms in lakes, rivers and other water bodies in the frequency of occurrence, magnitude and duration showed an increasing trend, especially in the easily lead to the Blue Green Algae in the summer and autumn, causing many harmful for people to produce life The influence of the people to take various measures to combat the occurrence of algal blooms, however algal blooms in the formation of mechanism is not deep enough, resulting in a lot of measures ineffective. Therefore, looking for a clean, efficient, easy-to-new production management, and inexpensive to kill algae control algae become very urgent and of great practical significance.The subject of experimental selection of cyanobacteria, green algae Cladophora, fluorescent catalytic light, A material for the catalyst. The experiment of A substances in anti-raw fluorescent irradiation by UV A reaction to a substance to achieve analog control of attached algae. First, the indoor simulation method to control certain conditions such as temperature, illumination, photocatalytic reaction control experiments in a homemade device attached algae under laboratory conditions. The light source used for the four40W fluorescent lamp, the wavelength range390-780nm, the wavelength of fluorescent light emitted by the UV100-400nm. Will produce a good load of different sizes and thickness uniformity of area respectively volume, respectively,0the cm2, the cm220,40the cm2, the cm260fixed supported catalyst material of concrete modules were placed in numbered1,2,3,4the culture attached algae5000ml beakers, each beaker inoculation attached algae wet weight1.5g/L,1is blank, as the reference to use of A substance on the effect of attached algae growth impact, through experiments and a large number of experimental data obtained A substances attached to the growth of algae control. A substances, the side toward the fluorescent lamp and the load, the load A substance module of10cm distance from the fluorescent intensity about16001ux, daily light and dark reactions time control in12h:12h. The experimental temperature was controlled at25±2°C, dissolved oxygen was9.0mg/1. And then open the device for the experiment. The basic principles of the photocatalytic reaction to kill the algae is a strong oxidizing strong oxidizing hydroxyl oxygen free radicals generated by the photocatalytic reaction, the rapid oxidation of algal cells to metabolic terminate and death. The results showed that the photocatalytic reaction agent A substance attached to the growth of algae with good inhibitory effect on the water bodies.