KR200322553Y1 - Sewage purifier - Google Patents

Abstract

The present invention aims to purify the sewage discharged from the toilet 3, and has shell contact aeration chambers 6 and 7 filled with a contact material 15 made of shells, and the shell contact aeration chamber 6 In the wastewater purification apparatus configured to introduce and purify sewage, 7), a shell in which at least the nacre layer b on the inner surface side is removed is used as the contact material 15.

Description

Sewage Purification System {SEWAGE PURIFIER}

The present invention relates to a sewage purification apparatus that can quickly and highly purify sewage made of feces discharged from a toilet.

Conventionally, for example, as disclosed in Japanese Patent Application Laid-Open No. Hei 9-37996, the aeration treatment chamber in which a oyster shell is used as a contact material for aeration treatment of wastewater is highly purified by treating wastewater composed of excreta and the like derived from the toilet. BACKGROUND ART Advanced purification treatment tanks are known in which purified water is reused as washing water for flushing toilets. Since the advanced purification tank has an aeration chamber having a contact material made of oyster shell, it is possible to neutralize acidified filthy water by calcium carbonate eluted from the oyster shell, and to effectively aerated the effluent from the surface of the oyster shell. It has the advantage that it can be decomposed and purified by treatment.

However, when the oyster shell is used as the contact material installed in the aeration chamber of the advanced purification tank, if the predetermined period has not elapsed after the use of the advanced purification tank starts, the neutralization of the sewage and the decomposing purification are sufficiently exhibited. There was a problem that it took time to start.

This invention is made | formed in view of the said point, and an object of this invention is to provide the sewage purification apparatus which can purify sewage effectively, without requiring time to start.

1 is a perspective view showing a first embodiment of a wastewater purification apparatus according to the present invention.

2 is an explanatory diagram showing a first embodiment of the filthy water purification apparatus;

3 is a cross-sectional view showing the structure of a shell.

4 is a cross-sectional view showing the configuration of a shell used in the sewage purification apparatus according to the present invention.

5 is a perspective view showing a specific configuration of the circulation means.

6 is an explanatory diagram showing a second embodiment of the wastewater purification apparatus according to the present invention;

7 is an explanatory diagram showing a third embodiment of the wastewater purification apparatus according to the present invention;

The present invention has a shell contact aeration chamber filled with a contact material made of shells, and a sewage purification apparatus configured to introduce and purify sewage into the aeration chamber, wherein at least an inner shell side is removed from the shell. The shell in which the porous footnote layer is exposed by removing such a nacre layer has a high affinity for microorganisms to purify sewage, and easy to dissolve components, and thus has an excellent function as a contact material for sewage purification.

In addition, the present invention is to install an activated carbon adsorption chamber filled with coal-based activated carbon in the downstream side of the shell contact aeration chamber. In such a configuration, the treated water purified in the aeration chamber is supplied to the activated carbon adsorption chamber to effectively discolor.

In addition, the present invention provides a bioreactor in which a denitrification chamber is provided on an upstream side of the shell contact aeration chamber and a hydrogen donor is enclosed in a membrane vessel in the denitrification chamber. In this case, the ammonium component is changed into nitrogen gas through the acetic acid and acetic acid in the treated water by the denitrification using the hydrogen co-solvent by the denitrification bacteria adhered to the surface of the membrane container.

In order to describe the present invention in more detail, it will be described with reference to the accompanying drawings.

1 and 2 show a first embodiment of the wastewater purification apparatus according to the present invention. This wastewater purifying apparatus is a treatment tank 1 composed of steel sheet, aluminum alloy, stainless steel, plastic, PC (prestressed concrete), reinforced concrete, FRP (fiber-reinforced plastic) or plastic, and this treatment. It has a tank 2 which stores the process water drawn out from the tank 1, and is used in the state embedded in the ground.

The treatment tank (1) has a sedimentation separation chamber (4) for separating solids in the sewage discharged from the toilet (3) through the discharge pipe (3a), and aeration for aeration treatment of the separation water derived from the sedimentation separation chamber (4). Derived from the processing chamber 5, the first and second shell contact aeration chambers 6 and 7 for further aeration of the treated water derived from the aeration treatment chamber 5, and the second shell contact aeration chamber 7 A sedimentation filtration chamber (8) for sedimentation filtration of the treated water and an activated carbon adsorption chamber (9) for decolorizing the treated water extracted from the sedimentation filtration chamber (8) are provided.

The sedimentation separation chamber 4 segregates and separates solids such as paper and coarse foreign matter in sewage, and separates the separated water from which the solids are separated into the aeration treatment chamber 5 on the downstream side by the derivation pipe 10. The baffle plate 11 is configured to prevent the floating material from being lost in the aeration chamber 5. In addition, the solid precipitated in the precipitation filtration chamber 8 is discharged and treated on a regular basis (for example, every year).

The aeration chamber 5 is provided with a diffuser 14 which is filled with a conventionally known plastic contact material 12 and discharges air supplied from the blower 13 below. The microorganisms attached to the plastic contact member 12 and reproduced while being stirred by the air discharged from the diffuser 14 are separated from the sedimentation separation chamber 4 into the aeration treatment chamber 5. And the dirt in the separated water is decomposed.

Further, the first and second shell contact aeration chambers 6 and 7 have oysters, scallops, clams, pearl clams, ramie clams, clams, clams, clam shells, marbling, seashells, and shellfish. The diffuser 16 which fills the shell contact material 15 which accommodates the shell made from shells or stony stones, and discharges the air supplied from the blower 13 below is provided.

As shown in Fig. 3, the shell contains calcium carbonate as a main component, and contains trace components such as calcium phosphate and magnesium carbonate, the outer skin layer (a), the inner shell layer (b), and the It consists of a footnote layer (c) in between. And as shown in FIG. 4, the said contact material 15 is comprised by accommodating in a bag body in the state in which the nacre layer b of the said shell was removed.

As a method of removing the nacre (b) of the shell, a method of peeling the nacre (b) using a suitable tool, a method of natural erosion of the nacre (b) by leaving the shell for about a year where the waves of the coast hit, hydrochloric acid The method of dissolving a nacre layer (b) using chemicals, such as these, or the method of peeling a nacre layer (b) by stirring many shells with a stirrer and making them contact. In addition, when removing the nacre layer (b) by the said natural erosion or agitation method, a part of the said cuticle layer (a) is also removed with this nacre layer (b).

Then, the treated water flowing from the aeration chamber 5 into the first shell contact aeration chamber 6 is introduced into the shell contact member 15 while being agitated by the air discharged from the diffuser 16. The microorganisms reproduced in the state decompose the dirt in the treated water. Further, the treated water flowing in from the first shell contact aeration chamber 6 into the second shell contact aeration chamber 7 is introduced into the shell contact member 15 while being agitated by the air discharged from the diffuser 16. The microorganisms reproduced in the state attached to the c) are further decomposed and processed into the sedimentation filtration chamber 8 after the dirt in the treated water is further decomposed.

The precipitation filtration chamber (8) has a filter body (17) containing a zeolite made of a porous body, and precipitates impurities in the treated water derived from the second shell contact aeration chamber (7) to separate filthy water and fines. The fine impurities in the fine water are filtered by the filter body 17, and then the fine water treated water is led to the activated carbon adsorption chamber 9 through the discharge pipe 18.

In the activated carbon adsorption chamber 9, as shown in FIG. 5, the adsorption pipe 21 provided with the partition plates 19 and 20 in which the some transparent hole was formed up and down, and the partition board in this adsorption pipe 21 are shown. Circulating pipe 23 and circulation pump 24 for sucking the activated carbon receptor 22 provided between the 19 and 20 and the treated water in the activated carbon adsorption chamber 9 and discharging it under the activated carbon receptor 22. A circulation means 25 having a is provided. The activated carbon acceptor 22 is constituted by filling coal-based activated carbon in a bag made of cloth or the like. The treated water discharged below the activated carbon receptor 22 by the circulation means 25 circulates in the activated carbon adsorption chamber 9 through the adsorption tube 21 and at that time, the activated carbon receptor 22 The color tone component is adsorbed by the coal-based activated carbon in the inside, so that it is effectively decolorized.

As shown in FIG. 1, the purified water produced by the decolorization treatment in the activated carbon adsorption chamber 9 is provided by a water supply means 28 having a pump 26 and a water supply pipe 27, whereby a toilet 3 is used. In addition to being supplied to the water supply tank 29, the remainder is configured to be led out and stored in the storage tank (2) through the induction pipe (30).

As the contact material 15 filled in the first and second shell contact aeration chambers 6 and 7 of the sewage purification apparatus as described above, at least the nacre layer b on the inner surface side is removed so that the porous columnar layer c is formed. Since a shell made of exposed oyster shell or the like is used, dirt in the contact material 15 and the treated water introduced into the first and second shell contact aeration chambers 6 and 7 from the aeration chamber 5 are removed. Affinity with microorganisms to be subjected to decomposition treatment can be increased, and these can be propagated appropriately. Therefore, the wastewater in the treated water can be effectively decomposed by the microorganisms propagated in the porous columnar layer (c), and the wastewater can be efficiently purified.

In addition, since the decomposition treatment function of the microorganism can be exerted from the beginning of installation of the sewage purification apparatus, environmental pollution is effectively prevented from occurring when the purified water purified by the sewage purification apparatus is discharged to the outside. At the same time, there is an advantage that the purified water can be effectively used as the washing water of the toilet 3, thereby enabling effective use of the water quality source.

In addition, in the aeration treatment chamber 5 and the first and second shell contact aeration chambers 6 and 7, the sewage is aerated so that, when the treated water is acidified, calcium carbonate is rapidly dissolved from the shell and the treated water. Can be neutralized. That is, the shell in which the nacre layer (b) has been removed has the advantage that its dissolution is easy to proceed, and thus there is an advantage that the acidified treated water can be effectively neutralized.

In addition, since the treated water is neutralized in the first and second shell contact aeration chambers 6 and 7 as described above, protozoa and tonic animals such as sunworms can be generated and reproduced in large quantities. For this reason, by incorporating and erasing bacteria, such as E. coli, present in the treated water into the protozoan, etc., it is possible to effectively prevent the incorporation of bacteria in the purified water derived from the septic purification apparatus.

Moreover, when the phosphorus component is contained in the said treated water, it can react with this calcium carbonate, and calcium phosphate can be produced | generated. The calcium phosphate is adsorbed to the activated carbon in the activated carbon receptor 22 provided in the activated carbon adsorption chamber 9 to recover the calcium phosphate, which can be used as a fertilizer or the like.

In addition, some of the calcium phosphate in the treated water precipitates in the precipitation filtration chamber 8 and is adsorbed by the filter body 15, and the rest of the calcium phosphate is adsorbed on the activated carbon in the activated carbon adsorption chamber 9. However, in order to remove the trace amount of phosphorus components remaining in the treated water, it is preferable to have a structure in which the activated carbon adsorption chamber 9 is provided with a phosphorus adsorption cylinder filled with shells such as oyster shells.

In order to confirm the purification performance of the sewage by the sewage purification apparatus shown in FIG. 1 and FIG. 2, the nacre layer b was removed as the contact material 15 of the first and second shell contact aeration chambers 6 and 7. The present invention using oyster shell, Comparative Example 1 using a conventionally known plastic contact material, and Comparative Example 2 using an untreated oyster shell having the nacre (b) as a contact material to confirm the purification performance of sewage As a result of the experiment, data as shown in Tables 1 to 7 below were obtained.

Table 1

TABLE 2

TABLE 3

Table 4

Table 5

Table 6

TABLE 7

Table 1 measured the pH concentration in the purified water, and in the present invention, it was confirmed that the pH tended to show acidity in Comparative Examples 1 and 2, while the pH showed neutrality throughout the year. From the data in Table 1, it was confirmed that by using the oyster shell from which the nacre layer b was removed as the contact material 15, it was possible to effectively prevent acidification of the purified water.

Tables 2 to 4 show the amount of suspended matter (SSmg / L), BOD (bio-oxygen demand mg / L) and COD (chemical oxygen demand mg) in the purified water according to the present invention and Comparative Examples 1 and 2. / L) was measured separately, and from these data, by using the oyster shell from which the nacre (b) was removed as the catalyst material (15), the dirt in the sewage was effectively decomposed and purified from the beginning of the installation of the drainage purification device. It was confirmed that it could be done.

Table 5 shows data showing the change state of the coliform count in the purified water. From this data, the oyster shell from which the nacre (b) was removed as the contact material 15 can be effectively reduced the number of bacteria in the filthy water. It was confirmed.

Tables 6 and 7 show data showing the state of change of the total amount of phosphorus (TP) contained in the purified water and the state of change of the amount of phosphate (PO ₄ -P). By using the oyster shell from which the nacre (b) was removed, it was confirmed that the phosphorus component and the phosphate phosphorus content in the filthy water can be effectively reduced.

In the first embodiment, since the activated carbon adsorption chamber 9 having the activated carbon receptor 22 filled with coal-based activated carbon is provided in the downstream side of the first and second shell contact aeration chambers 6 and 7, The treated water purified in the first and second shell contact aeration chambers 6 and 7 can be effectively decolorized in the activated carbon adsorption chamber 9.

That is, in the present invention example in which the activated carbon of the coal type is accommodated in the activated carbon receptor 22 and the comparative example in which the coconut shell activated carbon is accommodated, the experiment of measuring the change state of chromaticity in the purified water, Data as shown in Table 8 is obtained. From this data, it was confirmed that the use of the coal-based activated carbon can maintain the decolorizing performance in a good state for a long time as compared with the case of using the coconut shell activated carbon.

Table 8

In particular, as shown in the first embodiment, the treated water in the activated carbon adsorption chamber 9 is sucked and discharged below the activated carbon receptor 22 to circulate the treated water in the activated carbon adsorption chamber 9. When it is comprised so that it may have the advantage that the pigment component in the said treated water can be adsorbed effectively by the coal type activated carbon in the activated carbon acceptor 22, and the decolorization effect can be improved.

In the first embodiment, the aeration treatment chamber 5 filled with the plastic contact material 12 is provided upstream of the first and second shell contact aeration chambers 6 and 7 to purify the waste water to some extent. Since it is comprised so that it may supply to the 1st, 2nd shell contact aeration chamber 6 and 7 in one state, the shells, such as an oyster shell, provided in this 1st, 2nd shell contact aeration chamber 6, 7 will be damaged early. There is an advantage that it can effectively suppress the melted or dissolved and lost.

In particular, as shown in Fig. 6, the aeration chamber 5 and the first shell contact aeration chamber 6 are provided with a sedimentation chamber 5a for sedimenting and separating the mud in the treated water aerated in the aeration treatment chamber 5; In the case of installation between the shells, the shells provided in the first and second shell contact aeration chambers 6 and 7 can be more effectively suppressed from being prematurely stained, dissolved or lost.

In addition, in the second embodiment shown in FIG. 6, a denitration chamber 50 is provided between the first shell contact aeration chamber 6 and the second shell contact aeration chamber 7. Bioreactor in which a hydrogen donor composed of an organic carbon compound such as methanol is enclosed in a membrane container formed in a bag shape made of polyethylene film or the like (see, for example, Japanese Patent Application Laid-Open Nos. 10-323694 and 2000-237791). 51 is provided.

In the sewage purification apparatus including the first and second shell contact aeration chambers 6 and 7 as described above, the denitrification chamber 50 in which the bioreactor 51 is installed is the second shell contact aeration chamber 7. In the upstream side of the reactor, the ammonium component is passed through acetic acid and acetic acid in the treated water by denitrification using the hydrogen donor by denitrification bacteria adhered to the surface of the membrane body constituting the bioreactor 51. Since it can be removed by changing into nitrogen glass, the ammonium component and nitrogen compound in the treated water can be effectively reduced.

Moreover, according to the said structure, when the hydrogen donor is over-released from the bioreactor 51, there exists an advantage that it can decompose | disassemble by the calcium carbonate eluted from the shell in the said 2nd shell contact aeration chamber 7. In addition, since the denitrification bacteria are anaerobic, it is not preferable to supply a large amount of air to the denitrification chamber 50, but a small amount of air is supplied from the diffuser 16 to stir the inside of the denitrification chamber 50. Thereby, the denitrification effect by the said denitrification bacterium can be improved.

Further, instead of the embodiment in which the denitrification chamber 50 is provided between the first and second shell contact aeration chambers 6 and 7, the denitrification chamber (upstream side) of the first shell contact aeration chamber 6 is provided. It is good also as a structure provided 50). Further, in the first and second embodiments, the sedimentation separation chamber 4, the aeration treatment chamber 5, the precipitation chamber 5a, the first and second shell contact aeration chambers 6, in a single treatment tank 1, 7) The example where the denitrification chamber 50, the precipitation filtration chamber 8, the activated carbon adsorption chamber 9, etc. were installed was demonstrated, but what is needed, arrangement | positioning, etc. among the chambers which comprise the said wastewater purification apparatus are mentioned. It is not limited to the said embodiment, A various change is possible in the range which does not deviate from the meaning of this invention.

For example, as shown in FIG. 7, the primary treatment tank 31 which has the sedimentation separation chamber 4, the aeration treatment chamber 5, and the precipitation chamber 5a, and the 1st, 2nd shell contact aeration chamber 6 And 7), the denitrification chamber 50, the precipitation filtration chamber 8, the activated carbon adsorption chamber 9 and the like may be configured separately from the secondary treatment tank 32. In addition, the sedimentation separation chamber 4, the aeration treatment chamber 5, and the primary treatment tank 31 having the sedimentation chamber 5a are omitted, and the wastewater discharged from the toilet 3 is disposed in the treatment tank 32. Directly to the first shell contact aeration chamber 6, the first shell contact aeration chamber 6, the denitrification chamber 50, the second shell contact aeration chamber 7, the precipitation filtration chamber 8 and the activated carbon. The adsorption chamber 9 may be sequentially supplied and purged.

As described above, the sewage purification apparatus according to the present invention is useful for decomposing and purifying sewage in sewage discharged by toilets and the like, and in particular, it is possible to exert an excellent sewage purification function immediately after installing the sewage purification treatment apparatus. It is also suitable for preventing the purified water from acidifying.

Claims (3)

A sewage purifying apparatus having a shell contact aeration chamber filled with a contact material made of shells, and configured to introduce and purify sewage into the shell contact aeration chamber, wherein the shell is formed by removing at least an inner surface of the nacre as the contact material. Sewage purifier The sewage purification apparatus according to claim 1, further comprising an activated carbon adsorption chamber filled with coal-based activated carbon at a downstream side of the shell contact aeration chamber. The wastewater purification apparatus according to claim 1 or 2, wherein a denitrification chamber is provided on an upstream side of the shell contact aeration chamber, and a bioreactor in which a hydrogen donor is enclosed in a membrane container is provided in the denitrification chamber. Device.