Experiment And Reserch On Vortex Clarifier In Different Water Quality And Different Cortex Reactor

The safety of drinking water has become one social issue with great importance, traditional disposal process hasn't content with the demands of water quality, drinking water polluted more and more serious. Many efforts have been made in studying water treatment technology by scholars and researchers in the world aiming to meet beings'demands on the drinking water safety.Through the application of the self-designed vortex clarification tank by putting a certain amount of micro-vortex reactor into the tank, master State of the Field home and abroad by read literature widely, under the direction of my tutor, design of experiment and complete test. study the effects of micro-vortex reactor in the flocculation areas.The main contexts for the study:1. A laboratory test was carried out under simulated conditions of coagulation in the reaction chamber of vortex2. Not using micro-vortex reactor and using micro-vortex reactor, research affect of the micro-vortex.3. Different rate of inflow, research treatment scale of micro-vortex clarification.4. Different temperature and different turbidity, research the effects of micro-vortex clarification.5. Dispose of slightly polluted water use micro-vortex clarification.6. Research the best combination of different model micro-vortex reactor.The main research results as following:1. Experiment decide choose PAC as the coagulant of this test and 35mg/l as the optimum amount.2. The rate of inflow is 6m³/h, temperature is 12℃, and control turbidity of effluent is 1NTU. The quantity of coagulant is 22mg/L with no vortex reactor, the quantity of coagulant is 14mg/L with vortex reactor.3. Treatment scale is 6m³/h with no vortex reactor; treatment scale is 10m³/h with vortex reactor.4. The rate of inflow is 6m³/h, temperature is 12℃, the turbidity of inflow water is 20NTU(30NTU), control turbidity of effluent is 1NTU, the quantity of coagulant is 22mg/L(19mg/L) with no vortex reactor, and the quantity of coagulant is 14mg/L(16mg/L).5. The rate of inflow is 6m³/h, temperature is 12℃, release by vortex reactor with 35mm aperture. The water inflow quality: turbidity21.7NTU, Zeta potential -26.68, UV254 0.0703cm^-1; KMnO4 is8.16mg/L.Mode one: the quantity of coagulant is 10mg/L, turbidity of effluent is 2.81, Zeta potential is -10.227, and UV254 rate of removal is 27.3%, KMnO4 rate of removal is 43.2%, equivalent grain size is 0.389mm.Mode tow: the quantity of coagulant is 12mg/L, turbidity of effluent is 0.98, Zeta potential is -3.924, and UV254 rate of removal is 33.9%, KMnO4 rate of removal is 49.6%, equivalent grain size is 0.451mm.Mode three: the quantity of coagulant is 16mg/L, turbidity of effluent is 0.41, Zeta potential is -1.667, and UV254 rate of removal is 39.5%, KMnO4 rate of removal is 61.2%, equivalent grain size is 0.487mm.6. The rate of inflow is 6m³/h, temperature is 28℃, the turbidity of inflow water is 20NTU, and control turbidity of effluent is 1NTU.Mode one: the quantity of coagulant is 17mg/L, 19mg/L, 20mg/L, 22mg/L, 25mg/L, 28mg/L with no vortex reactor.Mode tow: the quantity of coagulant is 11mg/L, 12mg/L, 14mg/L, 16mg/L, 17mg/L, and 18mg/L with release vortex reactor by 35mm aperture to the first and second reaction chamber.Mode three: the quantity of coagulant is 9mg/L, 10mg/L, 11mg/L, 13mg/L, 15mg/L, and 16mg/L with release vortex reactor by 25mm aperture to the first and second reaction chamber.Mode four: the quantity of coagulant is 9mg/L, 9mg/L, 10mg/L, 12mg/L, 14mg/L, and 16mg/L with release vortex reactor by 25mm aperture to the first and release reactor by 25mm aperture to the second reaction chamber.