CN111747556A - Fecal sewage treatment device and method - Google Patents

Abstract

The invention relates to a fecal sewage treatment device and a method, wherein the device is specially used for realizing the method and comprises the following steps: an oxidant preparation chamber; the bottom of the oxidation chamber is provided with an oxidant releasing disc communicated with the oxidant preparation chamber; a micron-sized filter chamber communicated with the oxidation chamber through an overflow hole, wherein a micron-sized filter is arranged in the micron-sized filter chamber; the perforated sludge discharge pipe is arranged at the bottom of the oxidation chamber and the micron-sized filter chamber; and a reclaimed water tank for storing the water separated in the micron-sized filter chamber. And a compressed air input pipe for preventing the filter membrane from being blocked is arranged at the bottom of the micron-sized filter chamber. And the nano-scale filter is communicated with the reclaimed water tank. The oxidation chamber is divided into a first oxidation chamber and a second oxidation chamber by a grid, and a buffer filler is arranged in the second oxidation chamber. The material of the buffer filler is polypropylene plastic. The invention can process the fecal sewage in real time on the premise of neglecting the requirement of environmental temperature; and the sludge is greatly reduced, and the killing rate of bacteria is higher.

Description

Fecal sewage treatment device and method

technical field

The invention relates to a method for treating feces and sewage, and also relates to a device for treating feces and sewage.

Background technique

Fecal sewage refers to the washing water excreted in the life of residents, which is defined as domestic sewage containing fecal matter, such as toilet flushing water. Fecal sewage is a typical high-concentration organic sewage, and the basic task of fecal sewage treatment is to remove various organic substances in it. The existing fecal sewage treatment methods are mainly biological treatment methods, which utilize the life activities of microorganisms to degrade the organic matter in the dissolved or colloidal state in the sewage, thereby purifying the sewage.

Patent document CN200310105989.4 discloses a biological treatment method for fecal sewage suitable for active public toilets or community public toilets, including the steps of anaerobic fermentation treatment and aerobic fermentation treatment. The treatment time of fermentation is long, so the existing biological treatment methods of fecal sewage have shortcomings that need to be improved.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a fecal sewage treatment device and method, which can treat fecal sewage immediately under the premise of ignoring environmental temperature requirements.

The fecal sewage treatment device of the present invention is characterized in that it includes:

Oxidant preparation room;

an oxidation chamber, the bottom of which is provided with an oxidant release plate communicated with the oxidant preparation chamber;

A micron-level filter chamber communicated with the oxidation chamber through the overflow hole, and a micron-level filter is arranged in it;

The perforated sludge discharge pipe is arranged at the bottom of the oxidation chamber and the micron filter chamber;

And a reclaimed water tank for storing the moisture separated from the micron filter chamber.

The bottom of the micron filter chamber is provided with a compressed air input pipe for preventing clogging of the filter membrane.

Also included is a nanoscale filter in communication with the reclaimed water tank.

The oxidation chamber is divided into a first oxidation chamber and a second oxidation chamber by a grid, and a buffer filler is arranged in the second oxidation chamber.

The material of the buffer filler is polypropylene plastic.

The fecal sewage treatment method of the present invention is characterized in that comprising the following steps:

The fecal sewage is mixed with the oxidant in the oxidation chamber and oxidized;

The oxidized sewage is filtered through the micron-level filter chamber to form a clear liquid after the separation of mud and water and enter the reclaimed water tank;

It also includes the following steps:

The clear liquid in the reclaimed water tank is filtered through a nano-scale filter and then discharged.

The beneficial effects of the present invention are: 1. In the fecal sewage treatment device of the present invention, chemical reaction occurs in the oxidation chamber, and pure physical changes occur in the micron-level filter chamber and nano-level filter, which belongs to the method of physical chemistry as a whole, avoiding Due to the use of microorganisms, the working process is not limited by the ambient temperature; 2. The oxidation method can greatly reduce the organic matter in the sewage, and the final sludge reduction can reach more than 50%; , the killing rate of bacteria is higher, reaching more than 99.9%; 3. Due to the strong oxidation chemical reaction in the oxidation chamber, the degradation time of pollutants is greatly shortened, and the treatment time of fecal sewage is greatly shortened by this method, which can basically be treated immediately.

Description of drawings

FIG. 1 is a schematic structural diagram of the fecal sewage treatment device of the present invention.

Detailed ways

The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

Referring to FIG. 1 , the fecal sewage treatment device of the present invention includes an oxidant preparation chamber 1 , an oxidation chamber, a micron filter chamber 3 , a reclaimed water tank 4 , and a nanometer filter 5 .

The oxidant preparation chamber 1 is provided with a number of electrolytic positive electrodes 11 and negative electrodes 12, which are immersed in an aqueous solution in which salt is dissolved. When the electrolytic power source is connected to the electrolytic positive electrodes and negative electrodes, an oxidant for strongly oxidizing fecal sewage can be produced, It is output from the oxidant output port 13 .

As the basic equipment in public toilets, toilets, squatting pans, urinals and wash basins are all connected to the underground septic tank. After the pretreatment device pre-treats the fecal liquid in the septic tank, the fecal sewage in the septic tank is pumped to the fecal sewage inlet 20 at the top of the oxidation chamber by the sewage lift pump, so as to facilitate oxidation treatment in the oxidation chamber.

The oxidation chamber includes a first oxidation chamber 21 and a second oxidation chamber 22 separated by a grid plate 200, and a plurality of oxidant release trays 23 are arranged at the bottom thereof, which are connected with the oxidant output port 13 of the oxidant preparation chamber 1 through a pipeline 24 Connected. When the oxidant enters the bottom of the first oxidizing chamber 21 and the second oxidizing chamber 22, it is fully mixed with the fecal sewage contained therein to produce strong oxidation, specifically: degrading COD; decolorizing; and killing bacteria and harmful microorganisms.

A buffer filler 221 made of polypropylene plastic is also arranged in the second oxidation chamber 22, and its function is to prolong the contact time between the oxidant and the sewage, so that it has enough time to degrade the pollutants in the sewage. But even so, due to the strong oxidation of the oxidant, the fecal sewage stays in the equipment for only about 20 minutes, which can achieve the purpose of fully degrading the pollutants. Unlike the existing biological treatment technology, the anaerobic residence time of the microbial carrier is more than 8 hours, and the residence time in the aerobic stage is more than 24 hours. Therefore, the present invention greatly shortens the treatment time of fecal sewage, which is basically instant treatment.

Next to the oxidation chamber is the micron filter chamber 3, and the two are communicated through the overflow port 30, that is, when the amount of fecal sewage after oxidation treatment is sufficient, it overflows into the micron filter chamber 3 for the separation of mud and water. The micron-level filter chamber 3 is provided with a micron-level filter 31 and an air input pipe 32. Under the action of the pressure difference, the mud and water in the sewage are further separated, and the separated water is called clear liquid, which can enter the reclaimed water tank 4 Stored and used as flushing water.

The air input pipe 32 is connected to the compressed air source. After the compressed air enters, it is mixed with the fecal sewage, and a large number of rising air bubbles are generated after the air and water are mixed. .

At the bottom of the oxidation chamber and the micron filter chamber, there is also a sludge discharge pipe 28, which is provided with a number of perforations for absorbing sludge separated from the sewage. Generally, it is enough to clear the sludge once a year, and the sludge in the sludge discharge pipe will enter the sludge tank.

Under the action of the lift pump 51, the water in the reclaimed water tank enters the nanofiltration device 5. Since the nanofiltration device is provided with a nanofiltration membrane, substances with larger particles are blocked outside the membrane, and water molecules pass through the membrane surface. In order to clean the water, the clear liquid is further made to reach the discharge qualified level, and is discharged from the water outlet 52 .

Since the fecal sewage treatment device of the present invention avoids the use of microorganisms, and is purely a physical and chemical method, the requirement for ambient temperature is extremely low.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Personnel, within the scope of not departing from the technical solution of the present invention, can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above, but all content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (7)

1. a fecal sewage treatment device is characterized in that comprising: Oxidant preparation room; an oxidation chamber, the bottom of which is provided with an oxidant release plate communicated with the oxidant preparation chamber; A micron-level filter chamber communicated with the oxidation chamber through the overflow hole, and a micron-level filter is arranged in it; The perforated sludge discharge pipe is arranged at the bottom of the oxidation chamber and the micron filter chamber; And a reclaimed water tank for storing the moisture separated from the micron filter chamber. 2 . The fecal sewage treatment device according to claim 1 , wherein the bottom of the micron-level filter chamber is provided with a compressed air input pipe for preventing clogging of the filter membrane. 3 . 3. The fecal sewage treatment device according to claim 1 or 2, characterized in that it further comprises a nano-scale filter communicated with the reclaimed water tank. 4 . The fecal sewage treatment device according to claim 3 , wherein the oxidation chamber is divided into a first oxidation chamber and a second oxidation chamber by a grid, and a buffer filler is arranged in the second oxidation chamber. 5 . 5. The fecal sewage treatment device according to claim 4, wherein the material of the buffer filler is polypropylene plastic. 6. a fecal sewage treatment method is characterized in that comprising the steps: The fecal sewage is mixed with the oxidant in the oxidation chamber and oxidized; The oxidized fecal sewage is filtered through a micron-level filter chamber to form a clear liquid after mud-water separation and enter the reclaimed water tank. 7. fecal sewage treatment method as claimed in claim 6 is characterized in that also comprising the steps: The clear liquid in the reclaimed water tank is filtered through a nano-scale filter and then discharged.

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