New rural domestic sewage nitrogen and phosphorus removal purification system
A domestic sewage, nitrogen and phosphorus removal technology, applied in the field of sewage treatment and environmental protection, can solve problems such as blockage, activated sludge cannot be supplied, and total nitrogen and total phosphorus can not reach the first-level A level, etc., and achieve the effect of high concentration
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Embodiment 1
[0018] Embodiment 1: A new rural domestic sewage denitrification and phosphorus removal purification system, including rural domestic sewage head 17, a septic tank connected to the sewage pipe of the rural domestic sewage head 17 and an outlet pipe 18 connected to the septic tank, each Each rural domestic sewage household head 17 is connected to a septic tank correspondingly, and a septic tank 19 is added behind the septic tank, and all septic tanks are connected in parallel and connected to a septic tank 19 in a unified manner, the septic tank 19 is connected to the outlet pipe 18, and the septic tank 19 is provided with return pipeline and connects septic tank. The purification tank 19 includes a sealed tank body, which is divided into an anaerobic zone, an aerobic zone, an aeration zone, and a reflux zone, and a reflux pipe is set in the reflux zone to connect the anaerobic zone.
[0019] The septic tank includes a horizontal shell 1, a water inlet 1.1 opened at the left en...
Embodiment 2
[0020] Embodiment 2: With reference to Example 1, an auxiliary partition 14 is arranged in the anaerobic zone 3 of the septic tank, and the anaerobic zone 3 is divided into an anaerobic I zone 15 and an anaerobic II zone 16. Near the top of the plate 14, there are feces openings 14.1, the air lift automatic feces discharge device 6 is set in the anaerobic II zone 16, and the return pipe 7.2 of the mixed liquid gas lift device 7 extends into the anaerobic I zone 15 , and in the anaerobic II zone 16, and are all provided with a return port 7.2.1.
[0021] In the above embodiment 1 or 2, the rotary flow regulator 11 includes a top-sealed inner liner 11.1, a rotary sleeve 11.2 sleeved on the inner liner 11.1, a connecting joint 11.3 arranged at the bottom end of the inner liner 11.1, (the connecting joint Hoops can be used) The side wall of the inner liner 11.1 is provided with a water outlet hole 11.1.1, and the side wall of the rotating sleeve 11.2 is provided with an adjustment...
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