CN206448357U - A kind of environment protection public lavatory - Google Patents

Abstract

The utility model discloses an environment-friendly public toilet, which comprises a main body of the public toilet and a septic tank. The septic tank is provided with a water inlet pipe, and is characterized in that it also includes a biochemical tank and an anoxic sedimentation tank; , the discharge end of the sludge pump is connected to the bottom of the biochemical pool through a pipeline, and the sludge pump is electrically connected to a power timer; the bottom of the biochemical pool is equipped with an aerator, which is connected with the fan, and the aerator and The biochemical tank above the discharge end of the sludge pump is provided with a biological filler layer; the anoxic sedimentation tank is divided into a left sedimentation tank and a right sedimentation tank by a partition plate, and a baffle flow pipe is set between the biochemical tank and the left sedimentation tank, and the right A plurality of diversion plates are arranged in the sedimentation tank, a water outlet pipe is also arranged on the right sedimentation tank, and a filter screen corresponding to the water outlet pipe is also arranged in the right sedimentation tank. The utility model can carry out harmless treatment to feces sludge, and the sewage treatment quality is high.

Description

An environmentally friendly public toilet

technical field

The utility model belongs to the technical field of municipal public health facilities, in particular to an environment-friendly public toilet.

Background technique

There are many public toilets in the city for people's convenience. Septic tanks are generally built underground in public toilets. The septic tank is a small sewage treatment system. After the sewage enters the septic tank and settles for 12 to 24 hours, 50% to 60% of suspended solids can be removed. The sludge is decomposed by anaerobic fermentation for more than 3 months, so that the organic matter in the sludge is decomposed into stable inorganic matter, and the perishable raw sludge is transformed into stable cooked sludge, which changes the structure of the sludge and reduces the sludge The water content of the sludge should be cleared and transported out regularly, landfilled or used as fertilizer. The sludge cleaning time of septic tanks is generally 90 days, 180 days, and 360 days. The cleaned sludge can be used as organic fertilizer or for harmless disposal. However, with the widespread use of chemical fertilizers, social development , Fecal fertilizers are used less and less. At the same time, my country's sludge disposal industry is seriously lagging behind, and the harmless treatment of fecal sludge is insufficient. 1.36 billion people in my country produce more than 100 million tons of fecal sludge every year. According to statistics from the Bureau of Statistics, In 2012, only 8.014 million tons of fecal sludge was harmlessly treated. The removal and transfer of a large amount of fecal sludge has caused secondary pollution. Therefore, if the problem of harmless disposal of septic tank sludge cannot be solved, septic tank sludge will become a source of water pollution, and the problem of septic tank is an environmental protection issue related to the effectiveness of water pollution control.

Contents of the invention

The purpose of the utility model is to provide an environment-friendly public toilet for the above-mentioned deficiencies in the prior art, which can carry out harmless treatment of fecal sludge and has high sewage treatment quality.

In order to achieve the above object, the technical solution adopted by the utility model is: an environment-friendly public toilet, including a public toilet main body and a septic tank, the septic tank is provided with a water inlet pipe, and also includes a biochemical tank and an anoxic sedimentation tank; The bottom of the septic tank is provided with a sludge pump, and the discharge end of the sludge pump is connected to the bottom of the biochemical pool through a pipeline, and the sludge pump is electrically connected with a power timer; the bottom of the biochemical pool is provided with An aerator, the aerator is matched with the blower, the biochemical tank above the discharge end of the aerator and the sludge pump is provided with a biological filler layer, and the biological filler layer can place nitrifying bacteria; the anoxic sedimentation The pool is divided into a left sedimentation tank and a right sedimentation tank by a partition plate. There is a baffle water pipe between the biochemical tank and the left sedimentation tank. There are several drainage plates in the right sedimentation tank. A water outlet pipe is provided, and a filter screen corresponding to the water outlet pipe is also provided in the right sedimentation tank.

The baffled water pipe is a 90-degree bent pipe, the water inlet of the baffled water pipe is arranged at the upper end of the biochemical tank, and the water outlet of the baffled water pipe is arranged at the bottom of the left sedimentation tank.

The several baffles are arranged in a staggered arrangement and form baffle channels.

After adopting the above structure, the utility model has the advantages compared with the prior art: the utility model lifts the watery sludge deposited in the septic tank to the biochemical tank through the sludge pump and uses the aerator to fully Nitrification and oxidation, the watery sludge after nitrification and oxidation enters the left sedimentation tank for denitrification and precipitation through the deflected water pipe, and the supernatant water after precipitation enters the right sedimentation tank for further denitrification and precipitation, and finally The filter screen and the outlet pipe are discharged, and the harmful organisms in the sludge can be effectively killed during the nitrification oxidation and denitrification process, and the sludge is harmless; the baffle channel formed by the diversion plate in the right sedimentation tank can prolong the sedimentation time and make The sewage has been fully settled, and its use together with the filter can improve the water quality of the effluent; the power timer can automatically control the start time of the sludge pump to realize automatic control.

Description of drawings

Fig. 1 is a structural representation of the utility model.

Figure 2 is a top view of the anoxic sedimentation tank.

detailed description

The following descriptions are only preferred embodiments of the utility model, and do not limit the scope of protection of the utility model. The utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment, see shown in Fig. 1 to Fig. 2: a kind of environmental protection public toilet, comprises public toilet main body (accompanying drawing is not drawn) and septic tank 1, is provided with water inlet pipe 2 on the septic tank 1, also comprises biochemical tank 3 and The anoxic sedimentation tank 4; the bottom of the septic tank 1 is provided with a sludge pump 5, and the discharge end of the sludge pump 5 is connected to the bottom of the biochemical tank 3 through a pipeline, and the sludge pump 5 is electrically connected to a power timer 6; The pool bottom of pond 3 is provided with aerator 7, and aerator 7 is matched with blower fan (not shown in drawing) and is connected, and the biochemical pond 3 above the discharge end of aerator 7 and sludge pump 5 is provided with can fill The biological packing layer 8 of nitrifying bacteria; the anoxic sedimentation tank 4 is divided into a left sedimentation tank 10 and a right sedimentation tank 11 by a partition plate 9, and a baffle water pipe 12 is arranged between the biochemical tank 3 and the left sedimentation tank 10, and the right sedimentation tank Several diversion plates 13 are arranged in the pond 11 , and an outlet pipe 14 is also arranged on the right sedimentation pond 11 , and a filter screen 15 corresponding to the outlet pipe 14 is also arranged in the right sedimentation pond 11 .

Preferably, the deflected water pipe 12 is a 90-degree bent pipe, the water inlet of the deflected water pipe 12 is arranged at the upper end of the biochemical pool 3, and the water outlet of the deflected water pipe 12 is arranged at the bottom of the left sedimentation tank 10.

Preferably, several baffles 13 are arranged in a staggered arrangement and form baffle channels 16 .

The utility model lifts the watery sludge deposited in the septic tank 1 to the biochemical tank 3 through the sludge pump 5, and uses the aerator 7 to carry out sufficient nitrification and oxidation, and the watery sludge after the nitrification oxidation passes through the baffle. The water pipe 12 enters the left sedimentation tank 10 for denitrification and precipitation, and the supernatant water after precipitation crosses the partition plate 9 and enters the right sedimentation tank 11 for further denitrification and precipitation, and finally is discharged through the filter screen 15 and the outlet pipe 14, nitrification, oxidation and During the denitrification process, the harmful organisms in the sludge can be effectively killed, and the sludge is harmless; the baffle channel 16 formed by the diversion plate 13 in the right sedimentation tank 11 can prolong the sedimentation time of the upper sewage, so that the sewage can be fully Precipitation, which is used together with the filter screen 15 can improve the water quality of the effluent; the power timer 6 can automatically control the start time of the sludge pump 5 to realize automatic control.

Claims (3)

1. water inlet pipe (2) is provided with a kind of environment protection public lavatory, including public lavatory main body and septic tank (1), the septic tank (1), its It is characterised by：Also include biochemistry pool (3) and anoxic sedimentation basin (4)；The bottom of the septic tank (1) is provided with sludge pump (5), institute The outlet side for stating sludge pump (5) is connected to the bottom of pond of biochemistry pool (3) by pipeline, and sludge pump (5) Electricity Federation is connected to power supply and determined When device (6)；The bottom of pond of the biochemistry pool (3) is provided with aerator (7), and the aerator (7) is connected with matched with blower, described to expose Biologic packing material layer (8) is provided with biochemistry pool (3) above the outlet side of gas device (7) and sludge pump (5)；The anoxic sedimentation basin (4) left sedimentation basin (10) and right sedimentation basin (11) are divided into every pond plate (9), the biochemistry pool (3) and left sedimentation basin (10) it Between be provided with baffling and cross in water pipe (12), the right sedimentation basin (11) and be provided with some pieces of drainage plates (13), the right sedimentation basin (11) it is additionally provided with outlet pipe (14), the right sedimentation basin (11) and is additionally provided with filter screen corresponding with outlet pipe (14) (15)。

2. a kind of environment protection public lavatory according to claim 1, it is characterised in that：It is 90 degree of bendings that the baffling, which crosses water pipe (12), Pipe, the water inlet that baffling crosses water pipe (12) is arranged on the upper ends of biochemistry pool (3), and the delivery port that baffling crosses water pipe (12) is provided with The bottom of pond of left sedimentation basin (10).

3. a kind of environment protection public lavatory according to claim 1, it is characterised in that：Phase between some pieces of described drainage plates (13) Mutually it is staggered and sets and be formed with baffling passage (16).