KR20020031120A - Dirty and waste water purifying system - Google Patents

Abstract

PURPOSE: A wastewater/sewage treatment system that improves treatment capacity and DO(dissolved oxygen) concentration in wastewater/sewage by continuously circulating purified wastewater is provided to produce high-quality water. CONSTITUTION: The treatment systems comprises a storage tank(10) for storing the inflow wastewater/sewage; an aeration tank(20) and a precipitation tank(30); a filtration tank(40), which has a reaction tank packed with mixed porous materials and collecting tank; a decolorization tank(50), which has a reaction tank packed with activated carbon and collecting tank, adsorbs pigments and filtrates again the water from the filtration tank; a reservoir(60) that uses the water from the decolorization tank; a pipe(B) installed between the filtration tank and the storage tank to continuously supply the filtrated water to the storage tank.

Description

Waste and waste water purifying system

The present invention relates to a wastewater treatment system for purifying wastewater, such as manure wastewater, animal husbandry wastewater, kitchen sewage, and other household sewage, and more particularly, to efficiently treat wastewater and livestock wastewater generated mainly at home toilets or livestock houses. The present invention relates to a wastewater treatment system for purification and reuse.

With the development of industry, the generation of waste water is gradually increasing, and even in the case of water shortage due to the extreme weather caused by the warming phenomenon, it is an urgent task to be solved worldwide. . Therefore, in Europe, where much attention is paid to environmental protection, much research has been conducted on the purification and reuse of household wastewater, and it is also applied in many homes and workplaces. However, these conventional devices for wastewater purification and reuse have many problems in practical application because their configuration is complex and large in size or expensive to manage and operate.

Much research has been done on wastewater purification treatment in Korea. Among them, utility model registration application No. 1993-2216 (a wastewater purification facility using anaerobic and aerobic contact circulation method and its treatment method) uses microorganisms. In order to purify the waste water, the sedimentation tank for sedimentation and separation of solids and contaminants contained in the influent wastewater, the first and second anaerobic filter tanks filled with anaerobic mediators to remove nitrogen components and improve organic matter removal effect in the wastewater, Air lift pump for filling the contact material including the aerobic microbial layer to separate and remove the organic matter, the waste water from the first and second contact aeration tank equipped with aeration device into the center towel, and the circulation of the settled circulating water and Settling tank with metering device, disinfection tank to finally disinfect wastewater and discharge tank to discharge final treatment water Is one that configured by concatenated across the discharge side of the treated water from the waste water inlet side.

However, the above technology does not have facilities and processes for periodically backing anaerobic media and discharging the backwashed water. As a result, the contact area between wastewater and media is reduced due to the media closure, and the treatment efficiency is lowered. Long-term sedimentation leads to a decrease in crude treatment capacity and odor, and by supplying circulating water from the sedimentation tank to the anaerobic filtration tank, sludge (sediment) is deposited in the anaerobic filtration tank to worsen the anaerobic condition and discharged directly through the sedimentation tank. There is a problem such as the leakage of residual pollutants.

On the other hand, Patent Application No. 2000-54525 has been proposed to solve the above problems, as shown in Figure 1, through the attachment filtration tank after the waste water is circulated to the anaerobic, aerobic state through the circulation tank and the contact aeration tank After the final treatment, the sediment that is impeded by the treatment efficiency is effectively discharged, and microorganisms are activated, and anaerobic / aerobic contact circulation and adhesion filtration are used to maximize the treatment efficiency by removing residual pollutants.

The patent application No. 2000-54525 and the sedimentation separation tank 71; In order to decompose the treated water overflowed from the sedimentation tank into anaerobic microorganisms, there are circulating water tanks 1, 2 and 72 (73, 73) each having an anaerobic medium, and the circulating water tanks 1 and 2 are excessively attached to the anaerobic medium. Includes a customs office for the dropping of sludge; Contact aeration tanks 1 and 2 disposed adjacent to each other, including an aerobic media for decomposing and treating the treated water overflowed from the circulation tank 2 into aerobic microorganisms, and backwashing pipes and diffusers for dropping sludge that is excessively attached to the aerobic media. Two chambers (74, 75), and recycling some of the treated water in the contact aeration tank two chambers to the one circulation chamber through a circulation pipe; A settling tank 76 which receives the treated water overflowed from the contact aeration chamber 2 to settle the sludge, and simultaneously transports and discharges the sludge to the settling separation tank through a surplus sludge conveying line through an air lift; A sedimentation filtration tank (77) for additionally treating the residual contaminants contained in the treated water flowing from the sedimentation tank as an adhesion medium, but the excess sludge in the adhesion medium by dropping the sludge removed at the same time with a backwashing tube installed in the attachment filtration tank A backwash water conveying pump for transporting and discharging the sewage separation tank through a backwashing pipeline; It is configured to include a blower 70 for performing aeration, backwash, and airlift necessary for each tank.

The patented technology configured as described above allows the solids or contaminants contained in the wastewater to be separated into the sedimentation tank for sedimentation treatment, and the primary treatment water flowing out of the sedimentation tank includes the anaerobic media, respectively. Nitrogen is removed by anaerobic microorganisms by sequentially supplying one tank and two circulation tanks, and the treated nitrogen is sequentially flowed into one contact aeration tank and two contact aeration tanks each containing an aerobic medium, and aerated at the same time into each contact aeration tank. The activation of aerobic microorganisms decomposes the organic matter, the treated water decomposed in the organic matter is introduced into the sedimentation tank to precipitate the organic matter in the tertiary treatment water, and the treated water flowing in the sedimentation-precipitated sedimentation tank includes an adhesive including a contact material. Activated aerobic microorganisms by supplying oxygen to the filtration tank to remove residual pollutants. After dwelt is adapted to process the waste water in order to discharge.

However, the wastewater treatment device of the patent has a complicated structure and requires several steps, so the space occupied by the device is too large, and the oxygen must be supplied artificially, resulting in a lot of trouble and economic burden, and conclusively, wastewater. In the treatment, it is not possible to purify until it becomes reusable water, it can be treated only to the level that can be discharged, it can not bring the effect of reuse of the treated water.

In addition, the waste water treatment device of the patent is configured to discharge the waste water is determined that the purification of the waste water is finished when the waste water proceeds to each set once, rather than by discharging water that has not completely removed the pigment or smell, etc. Can cause pollution and thus destroy ecosystems.

The present invention has been invented to solve the above problems in view of the above, the object of the first, can be easily and easily installed and used in a narrow space, and second, to increase the treatment capacity of the waste water even in the simple facility Third, to improve the dissolved oxygen concentration of waste water by continuously circulating the waste water, and to provide a waste water treatment device to maximize the purification efficiency of the waste water to make a good quality purified water and to discharge or reuse the purified water.

1 is a block diagram of a conventional wastewater treatment apparatus,

2 is a schematic configuration diagram of a wastewater treatment system according to the present invention;

Figure 3 is a detailed configuration of the filtration tank and the decolorization tank of the wastewater treatment system according to the present invention.

※ Explanation of symbols on main parts of drawing ※

10: storage tank 20: aeration tank

30: sedimentation tank 40: filtration tank

41,51: reactor 42,52: sump

50: bleach 60: use

B: bypass pipe P: pump

The wastewater treatment apparatus of the present invention filters a storage tank for storing the incoming wastewater, an aeration tank for aeration of the wastewater supplied from the storage tank, a precipitation tank for precipitating sediment of the wastewater supplied from the aeration tank, and a wastewater supplied from the precipitation tank. In a waste water treatment system comprising a filtration tank to be adsorbed, a decolorization tank for adsorbing the dye of the filtration water supplied from the filtration tank and performing secondary filtration, and a place where water of the decolorization tank is supplied and used.

The bypass pipe is connected between the filtration tank and the storage tank, and the purified water passed through the filtration tank is re-supplied to the storage tank for continuous circulation.If the purified water of the decolorization tank is supplied to the destination by using the purified water at the place of use, the amount of the filtration tank is supplied. Part of the purified water is supplied to the decolorization tank, and the purified water in the remaining filtration tank is re-supplied to the storage tank to be continuously circulated and purified together with the waste water supplied from the use place.

The wastewater treatment system of the present invention is mainly for purifying and reusing or externally discharging livestock wastewater generated in a toilet or livestock house, so that manure wastewater generated in a home toilet can be purified and reused, and livestock Wastewater is based on clarification and external discharge, but in some cases they are purged to allow external discharge or re-use.

The wastewater treatment system of the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, first, as shown in FIG. 2, waste water is supplied to the storage tank 10, and the waste water supplied to the storage tank 10 is supplied to the aeration tank 20 so that aeration occurs and primary purification occurs. At this time, since the crusher (not shown), which is a crushing means, is installed in the storage tank 10 and the aeration tank 20, sludge present in the wastewater is crushed by the crushing means and supplied to the next settling tank together with the wastewater. That is, in the aeration tank 20, the first purified waste water enters the settling tank 30, and sludge having large particles is precipitated, and the remaining boiling water is supplied to the filtration tank 40 for purification.

As shown in FIG. 3, the filtration tank 40 includes a reaction tank 41 in which one or two or more of porous media ie, wood chips, mica chips, synthetic resin chips, and ceramic chips are mixed and filled, and the reaction tank as shown in FIG. 3. The boiling water supplied from the settling tank 20 is purified by the filter medium, and the purified water is supplied to the water collecting tank 42, which is composed of a collecting tank 42 for collecting purified water purified at 41. And the purified water collected in the water collecting tank 42 is again supplied to the storage tank 10 along the by-bath tube (B) and the purified water is supplied to the reaction tank of the aeration tank (20) → sedimentation tank (30) → filtration tank (40). 41) → The collection tank 42 continues to circulate in order to increase the purification efficiency.

On the other hand, the structure of the decolorization tank 50 consists of the reaction tank 51 in which the activated carbon which removes the pigment | dye which remain | survives in the purified water, and the collection tank 52 which collects the purified water of the reaction tank 51, and decolorization which has such a structure The purified water supply to the tank 50 is to supply the circulation of at least one cycle of the storage tank (10) → aeration tank (20) → sedimentation tank (30) → filtration tank (40), which is continuously circulated and purification efficiency If the purified water is used at the place of use 60 while increasing the amount of water, a portion of the purified water (as much as the amount of purified water at the place of use) is supplied to the place of use 60, and the amount of the purified water filter 40 is equal to the amount supplied. With the operation of the pump P, the decolorizing tank 50 is replenished, and at the same time, the purified water in the remaining filtration tank 40 is supplied back to the storage tank 10 along the bypass pipe B and supplied from the use place 60. It is continuously circulated and purified with incoming wastewater.

And when the water level sensor (not shown) is connected to the decolorization tank 50 is installed, the water level of the decolorization tank 50 is filled to detect the water level sensor to stop the operation of the pump (P), and If the water level of the decolorization tank 50 is not full, the water level sensor detects it and operates the pump P to receive the purified water of the filtration tank 40. The water level of the decolorization tank 50 is full. When the purified water is not used at the use destination 60, the purified water level of the decoloring bath 50 is not used when the purified water is used at the use destination 60. On the other hand, even when the purified water is supplied from the decolorization tank 50 to the destination 60 is made by the operation of the pump (P).

In addition, the purified water purified by the above method is not all used at the place of use 60, but may be discharged to the outside if necessary. When the livestock wastewater is purified, it is preferable to discharge to the outside rather than reuse. In the case of purifying wastewater, it is preferable to be supplied to the use place 60 and reused.

However, the livestock wastewater is not necessarily purified and discharged, and the home wastewater is not purified and reused, but according to the method of operating or operating the purification system of the present invention, both livestock wastewater and manure wastewater may be purified and reused. Alternatively, both livestock and manure wastewater can be purified and discharged externally.

In the case of reusing the purified water, the use place 60 will be mainly a water storage tank, a water storage tank, an item washing tank, etc. of the toilet, and the water used here becomes wastewater again and is supplied again to the storage tank 10. The waste water purification procedure of the waste water purification tank 10 → aeration tank 20 → sedimentation tank 30 → filtration tank 40 is continuously circulated or some purified water of the filtration tank 40 is decolorized tank 50 → use place 60 The cycle of the storage tank 10 repeats the purification of the waste water and the use of the purified water.

The filter medium filled in the reaction tank 41 of the filtration tank 40 is made of porous wood chips, mica chips, synthetic resin chips, ceramic chips, etc., and, when efficiently purified by such media, removes all colors and odors of waste water. Thus, the finally discharged effluent can be colorless and odorless to the same extent as ordinary water. That is, when the waste water is supplied to the reaction tank 41 in which the filter medium is filled, the waste water passes through the pores of the filter medium and between the filter medium and the filter medium, and is sufficiently purified by the microorganisms for wastewater purification to be discharged as clear water.

However, in order to achieve such efficient purification, the microorganisms must be completely cultured in the media of the reactor 41, and the amount of dissolved oxygen and temperature necessary for the microorganisms to fully function must be managed and maintained.

Moreover, since activated carbon is filled in the reaction tank 51 which is the decoloring tank 50, the smell and pigment | dye which remain | survives in the purified water which passed the filtration tank 40 are completely removed.

The wastewater treatment system of the present invention as described above allows energy to be supplied by naturally overflowing without using power except the minimum point requiring power, and also of the wastewater supplied to the storage tank, as well as purification. By circulating and purifying the purified water, the purification efficiency can be maximized, and the waste water can be prevented by reusing the purified water.

The wastewater treatment system of the present invention as described above has the effect that, firstly, the configuration is simple and the installation does not require much space, so that it can be simply installed in a small area, and secondly, the filtration tank and the storage tank are continuously Through the circulation, the purification efficiency was maximized. Third, the water purification was prevented by recycling the purified water to the place where it was reused.

Claims (3)

A storage tank 10 for storing incoming waste water, an aeration tank 20 for aeration of the waste water supplied from the storage tank, a precipitation tank 30 for precipitating sediment of the waste water supplied from the aeration tank, and the waste water supplied from the precipitation tank A waste water treatment consisting of a filtration tank 40 for filtration, a decolorizing tank 50 for adsorbing the pigment of the filtration water supplied from the filtration tank, and a destination 60 for receiving and using the water of the decolorization tank. In the system, The bypass pipe (B) is connected between the filtration tank (40) and the storage tank (10) to be connected again to supply the purified water passed through the filtration tank to the storage tank to be continuously circulated, but the decolorization tank by the use of the purified water (60) ( When a part of the purified water of 50) is supplied to the place of use, a portion of the purified water purified water is supplied to the decolorization tank, and the remaining purified water is supplied to the storage tank to be continuously circulated and purified together with the waste water supplied from the place of use. Wastewater treatment system characterized by. The method of claim 1, wherein the filtration tank 40 is a reaction tank 41 filled with one or two or more of porous wood chips, mica chips, synthetic resin chips, ceramic chips to purify the waste water and purified in the reaction tank Waste water treatment system, characterized in that consisting of a collecting tank 42 for collecting purified water. The decolorization tank (50) according to claim 1, wherein the decolorization tank (50) is composed of a reaction tank (51) filled with activated carbon for adsorbing and removing a pigment of purified water supplied from a filtration tank, and a collecting tank (52) for collecting purified water from the reaction tank. Wastewater treatment system characterized by.