Device and method for starting and stably maintaining filamentous bacteria microdilatancy in biological nitrogen and phosphorus removal process
A biological denitrification and micro-expansion technology, applied in chemical instruments and methods, aerobic and anaerobic process treatment, sedimentation treatment, etc. Large air volume, increased operating costs of sewage treatment plants and other issues, to achieve the effect of reducing aeration energy consumption, low concentration, and reducing operating costs
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[0018] The present invention will be further described below in conjunction with the drawings and implementation cases.
[0019] The device for starting and stably maintaining the micro-swelling of filamentous bacteria in the biological nitrogen and phosphorus removal process of the present invention is shown in FIG. 1. The device is connected in order of raw water tank (1), water inlet pump (2), anaerobic zone (3), anoxic zone (4), aerobic zone (5) and secondary sedimentation tank (6). The inlet water tank and the anaerobic zone are connected through an inlet pump (2) and an inlet pipe (7); the biochemical reactor is composed of an anaerobic zone (3), anoxic zone (4) and aerobic zone (5), The anaerobic zone, anoxic zone and aerobic zone are separated by detachable baffle plates. The baffles are provided with staggered water guide holes to prevent short flow. Stirring is installed in both anaerobic zone and anoxic zone. In the device (9), the bottom of each aerobic zone is equip...
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