KR20010113990A - The simple sewage treatment system - Google Patents

Abstract

The present invention relates to a simple sewage treatment plant that has a high sewage treatment capacity despite the small maintenance and construction costs, which is suitable for small villages, houses, hotels, restaurants, etc., which cannot be connected with the sewage treatment plant.

In the present invention, the sewage soaks vertically into the reed tank 20 formed of the upper aggregate layer 21a and the lower aggregate layer 21b so that the sewage in the lower aggregate layer is horizontal in an anaerobic state (a state in which oxygen supply is blocked). Flow to allow purification.

Therefore, it is possible to obtain high purification effect by natural purification of sewage introduced by aerobic bacteria inhabiting the upper aggregate layer and anaerobic bacteria in the lower aggregate layer. It does not require any maintenance and operating costs, and has a long service life.

These advantages can be applied to places requiring small sewage treatment, such as small villages, detached houses, hotels, restaurants, etc., which cannot be linked to sewage treatment plants. have.

Description

Simple sewage treatment system

The present invention relates to a sewage treatment system for treating sewage through natural purification using aerobic and basic microorganisms (bacteria), and is particularly suitable for small villages, houses, hotels, catering companies, etc., which cannot be linked with sewage treatment plants. The present invention relates to a simple sewage treatment plant that has a high sewage treatment capacity even though it is a small scale with low maintenance and construction costs.

Small size, small construction cost, sewage treatment, low maintenance and operation cost, long life

It relates to a simple sewage treatment system that can be easily used.

Generally, factor wastewater is considered as a factor causing vertical pollution. But the biggest culprit is the sewage from households.

In order to prevent water pollution due to such sewage, sewage terminal treatment plants are installed in each specific area to be purified and discharged.However, due to the increase in population, the treatment capacity is limited, and at a certain point, it has to be expanded at a high cost. In addition, small towns with small populations and remote populations, rural houses and hotels, inns and restaurants that are adjacent to water supplies are increasing the water pollution because they cannot be connected to these facilities.

In recent years, sewage discharge standards have been strengthened, but in order to fundamentally solve current problems, the method of self-purifying where sewage is generated is the most efficient.

Currently known sewage treatment systems include general septic tanks and combined septic tanks. However, septic tanks simply oxidize sewage, and merger septic tanks are expensive and users are reluctant because they spend a lot of money such as electricity bills. In addition, since the sewage treatment system relies on mechanical treatment, there is a limit to requiring high purification ability such as sludge, which is a secondary pollutant, and no treatment of phosphorus and nitrogen.

As such, the sewage purification treatment facilities are not only expensive, but the effect is insignificant, and the companies or households are too small to have such sewage treatment facilities, and the operation and maintenance costs are high, so that they are not equipped. There are many difficulties, and there is an urgent need for small-sized, simple, sewage treatment facilities that are cheaper and have lower maintenance and operating costs.

Due to this need, the present application has been introduced to the natural ventilation system, aggregate bedding sewage treatment plant that can be natural registration registered as Utility Model Registration No. 190098.

It is equipped with reed tank and aquatic tank having aggregates that can increase the activity of microorganisms in the inside to obtain a good sewage purification effect through natural purification.

However, the sewage treatment plant that is elected has a disadvantage in that a lot of sites are required because the reed tank and the water plant tank are actually configured separately. Therefore, there are many burdens in terms of facility site and cost to apply in small villages, detached houses, hotels, inns and restaurants.

The present invention by placing the function of the wetland, that is, the weeding tank in the lower part of the reed tank of the utility model registration No. 190098, which was previously filed in order to solve the conventional problems, by combining the reed tank and the weeding tank as one to be stacked up and down Small villages that are small in size and small in construction cost by inducing natural purification using anaerobic and aerobic microorganisms, as well as low maintenance and operation costs, are not separated from sewage treatment plants The purpose is to provide a simple sewage treatment system suitable for installation of a septic tank in a place where small sewage treatment is required, such as a detached house, a hotel, a catering company, or a household.

The present invention for achieving the above object is settling tank for sedimenting foreign matter, such as sand or stone introduced together with the temporary storage of the sewage to be drained;

A reed tank for laminating the upper aggregate layer in which aerobic microorganisms live and the lower aggregate layer in which anaerobic microbes live up and down to decompose and purify sewage having passed through the settling tank by microorganisms;

It is achieved by configuring a water level regulator for controlling the purified water purified in the reed tank to discharge to the river.

1 is a plan view showing the structure of the simplified sewage treatment system of the present invention.

Figure 2 is a side cross-sectional view showing the structure of the simplified sewage treatment system of the present invention.

*** Explanation of symbols for the main parts of the drawing ***

10-Sedimentation tank 11-Sewage pipe 12-Sewage distributor

20-Reed tide 21a, 21b-Upper and lower aggregate layers 22-Air barrier

23-Screen 24-Air inlet pipe 25-Exhaust pipe

26-Sewage drainage pipe 27-Reed bed 28-Separator

29-Sewage inlet 30-Water level regulator 40-Pond (40)

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view showing the structure of the simplified sewage treatment system of the present invention, Figure 2 is a side cross-sectional view showing the structure of the simplified sewage treatment system of the present invention.

The system of the present invention comprises a sedimentation tank 10 for precipitating large sewage, and a sewage distributor for distributing sewage through the sedimentation tank 10, and a reed tank 20 for purifying sewage distributed from the sewage distributor. ) And a water level regulator 30 for properly discharging the sewage purified by the reed tank 20 to the stream. If necessary, after the water level regulator 30, the pond 40 may be configured to discharge the sewage into the river through the pond 40.

The sedimentation tank 10 may be installed at the same time by inducing sewage into one place to precipitate sediment, such as sand introduced together or dispersed in each inflow path in which sewage flows. The former method may be suitable when the amount of sewage flowing in is small, and the latter method may be used efficiently when the amount of incoming sewage is large.

The reed tank 20 is divided into upper and lower aggregate layers 21a and 21b, and the lower aggregate layer 21b is divided into an anaerobic microorganism growth and activity zone and an upper aggregate layer 21a into an aerobic microbial zone. At this time, the lower aggregate layer 21b is composed of aggregates having a diameter of about 20 mm, such as gravel, and the upper aggregate layer 21a is formed of aggregates having small particles such as sand or fines.

In addition, between the upper aggregate layer (21a) and the lower aggregate layer (21b) is laid an air barrier film (22) to block the flow of air into the lower aggregate layer (21b), sewage is introduced into the basement front of the reservoir tank A lining film 23 is laid to prevent the ground water from being contaminated. At this time, the sewage inlet 29 is formed at the edge of the air barrier layer 22 to introduce the sewage that has passed through the upper aggregate layer 21a.

In addition, the air inlet pipe 24 is piped to the upper portion of the air barrier membrane 22, one end is installed to be exposed to the outside through the bank of the reed tank 20, the microorganism growing and acting in the upper aggregate layer (21a) To provide a passage for supplying oxygen to the upper surface of the air inlet pipe 24, the exhaust pipe 25 is installed at regular intervals to facilitate the circulation of air.

In addition, the lower aggregate layer (21b) below the sewage drainage pipe 26 for draining the sewage passing through each aggregate layer is piped, one end thereof is connected to the water level regulator (30).

In addition, the reed is planted on top of the upper aggregate layer (21a) to form a reed layer (27). As reeds are wide and deeply distributed, they provide a space for active growth and activity of many microorganisms that purify sewage, and when the temperature drops, such as winter, the microorganisms of the upper aggregate layer 21a are somewhat active. It keeps the sewage purification function even in winter by keeping it at a suitable temperature to grow.

In addition, the water level regulator 30 is installed so as to be connected to the end of the sewage drainage pipe 26 installed through the bank of the reed tank 20, which functions to discharge the amount of sewage to be discharged to the river by an appropriate amount. .

On the other hand, when cleaning the sewage through the reed tank 20 will require some time sufficient. However, if the volume of the reed tank 20 can not handle the sewage flows into the sewage tank 20 is divided into two zones to prevent this because the purification capacity of the sewage falls. In addition, when sewage flows into the reed tank, a microbial membrane is formed in the upper aggregate layer, which prevents the air from being distributed. Therefore, the sewage tank has to be dried for an appropriate time. However, since the purification of the reed tank 20 should be carried out continuously, the separation membrane 28 is vertically installed at the center of the reed tank so that the reed tank 20 is bisected to form an independent reed tank 20. do.

At this time, the sewage distributor 12 is installed between the sedimentation tank 10 and the reed tank 20 because a means for alternately distributing sewage through the sedimentation tank 10 to the independently separated reed tank 20 is required.

The simple sewage treatment system of the present invention having such a structure is installed in a small village, a detached house, a hotel, an inn, a restaurant, and so on, which cannot be connected to the sewage terminal treatment plant. Inflow to the settling tank 10 through.

Inflowing sewage is precipitated in the sedimentation tank 10 and then introduced into the reed tank 20. When the reed tank 20 is divided into two zones, the sewage distributor 12 is passed through a proper time difference. Alternately supply sewage.

The supplied sewage is passed through the primary reed layer 27, and is primarily decomposed by the microorganisms active in the root of the reed, and part of the sewage is absorbed and decomposed into the root of the reed.

The sewage that has passed through the reed layer 27 again penetrates into the upper aggregate layer 21a and is secondaryly decomposed by microorganisms, and is decomposed by aerobic microorganisms (bacteria). The aerobic decomposition requires a lot of oxygen, which is supplied with a large amount of oxygen through the air inlet pipe (24) and the exhaust pipe (25) provides a vigorous decomposition activity of the microorganisms. Through this, it is possible to effectively remove phosphorus (P), which is a key factor for water purification.

The sewage that has passed through the upper aggregate layer 21a also penetrates into the lower aggregate layer 21b through the sewage inlet 29 formed at the edge of the air barrier film 22, and is anaerobic by the anaerobic microorganisms of the lower aggregate layer 21b. Decomposition takes place and purification.

The purified sewage is discharged to the water level regulator 30 through the sewage drainage pipe 26 and discharged into the river while adjusting the appropriate water level. At this time, in order to increase the amount of dissolved oxygen more by installing a separate pond 40 to drain to the pond 40 through the discharge pipe of the water level regulator 30 to be discharged into the stream, but suitable between the discharge pipe and the pond (40) It is a good idea to drop a drop to drain enough sewage to induce sufficient oxygen. In addition, by installing the pond 40, the degree of purification of the sewage can be grasped, and the water of the pond can be supplied to agricultural water such as rice fields or fields.

As described above, the present invention purifies the sewage flows vertically in the anaerobic state (a state in which oxygen supply is blocked) in the lower aggregate layer by allowing sewage to vertically penetrate into the reed tank composed of the upper aggregate layer and the lower aggregate layer. As a result, it is possible to obtain a high purification effect by the natural purification of sewage introduced by aerobic bacteria inhabiting the upper aggregate layer and anaerobic bacteria inhabiting the lower aggregate layer. Since it is not necessary at all, it has no long-term maintenance costs and operating costs, and has a long life advantage.

These advantages can be applied to places requiring small sewage treatment, such as small villages, detached houses, hotels, restaurants, etc., which cannot be linked to sewage treatment plants. have.

Claims (3)

A sedimentation tank 10 for temporarily depositing sewage to be drained to settle foreign substances such as sand or stones introduced together; Reed tank (20) for introducing the sewage passed through the settling tank 10 to be decomposed and purified by microorganisms; Consists of a water level regulator 30 to discharge the purified water purified in the reed tank 20 to the stream by adjusting the appropriate amount, The reed tank 20 grinds the water repellent membrane 23 on the bottom surface, pipes the sewage drainage pipe 26 to the upper portion thereof, exposes one end thereof, and connects the water level regulator 30 to the upper portion of the anaerobic microorganism. The lower aggregate layer 21b is formed to provide a breeding and activity space, and a sewage inlet 29 is formed at the top thereof to introduce the sewage of the upper portion, and an air barrier membrane 22 is formed to block the inflow of air. And, the air inlet pipe 24 of the porous body is connected to the upper portion of the air barrier membrane is exposed vertically at a predetermined interval vertically, and the growth and activity of aerobic microorganisms on the top of the air inlet tube 24 Forming an upper aggregate layer (21a) such as gravel to ensure, and on the upper portion of the upper aggregate layer (21a) is characterized by comprising a reed layer 27 for warming the temperature suitable for decomposition of sewage and growth and activity of microorganisms Simplified sewage Processing system. The method of claim 1, wherein the reed tank 20 is vertically bisected through the separation membrane 28, and the sewage distributor 12 is installed between the settling tank 10 and the reed tank 20 to settling tank 10 Simple sewage treatment system characterized in that the supply of rough sewage to the reed tank 20 alternately at regular intervals. 2. The simplified sewage treatment system according to claim 1, wherein the pond 40 is installed at the next position of the water level regulator 30 so that the sewage purified in the reed tank 20 is discharged through the pond 40. .