Research Into The Anaerobe Treatment Of Phosphorus And Nitrogen Removal Decontaminate Technology For Dispersive Household Sewage

Wastewater of biologist nitrogen and phoshphoras removal technology is an economical and valid way of control wastewater N and P pollution. Basing on keeping the advantage of life wastewater decontaminating pools, this subject is mainly to improve its techniques, increase the efficiency of biological denitrification and phosphorus removal. This thesis is largely to study and analyze the decontaminating pools of dispersed life sewage concerning relevant techniques on the detest oxygen part.Work and conclusions can be illustrated as follows:According to the theory of nitrogen and phosphorus removal, improve the original technique of sewage purification pools by adopting tripartite way —anaerobic, compound aerobic and compound anaerobic technique.By combining theory analysed with practice, through experiments of HRT, the anaerobic and phosphorus released experiment, the experiment of studding compared, etc. we have confirmed every parameters of the technique which include the first anaerobic HRT is 2h, the second anaerobic HRT is 5.33h, the three compound anaerobic (HABR) reactor one is 4.91h. That is to say, the HRT of this whole system counts 12.24h. The studding of compound aerobic and HABR reactors is selected with stretch and three-dimensional.Through an analysis of experimental data, equations about organic matter degraded, anaerobic and phosphorus removal wholly accord with first class dynamics model.Steadily run for the whole system, it suggested that the anaerobic, aerobic and anaerobic technique that made up by the first anaerobic unit, the second aerobic compound and the HABR reactor show that it's steady efficiency on decontaminating organic matter as well as phosphor and nitrogen removal of the medium low density sewage. In addition, the disposed water fits the second grade of the wastewater compound dispersed stand (GB8987-1996).Investigated different organic load impact on steady operation of the system and investigated impacts on the steady operation of the system made, which made by changes from environment temperature of the system. Results suggest that the whole system has better adaptability and stability when changes from temperature and organic load occur, and the disposed water still meet what relevant standards' requirement. Analysing the reason, the packing retains a large amount of active mud, makes the biological total amount of the system increasing and improves the stability of the system.In accordance with lacks in this text, the design to enlarge the system should be carried on and the feasible sewage disposal craft should be developed according to the actual conditions.