KR20000019741A - Device for managing organic sewage - Google Patents

Abstract

PURPOSE: A treatment device for managing organic sewage is provided, which is characterized in that soil bacillus is used for condensing organic matters in aerobic condition in the aeration tank. CONSTITUTION: The device which is utilizing soil bacillus is composed of settling separation tank(10) where solidity will be settled down and separated, control tank(12) for flow rate for handling effluent water, aeration tank(13) which supplies air to improve managing efficiency, settling tank(15) for settling sludge after aeration tank, concentrator(14) which concentrates sludge, and discharging tank(16) for releasing treated water. A belt for conveyance will convey water from settling tank(15) to settling separation tank(10), and aeration tank(13). Air lifts(28, 29) will push water in the control tank(12) out to transferring pipe(26) and settling separation tank(10) will be supplied the air by aeration device(24) and air supplying device(20).

Description

Organic sewage treatment device

The present invention relates to an organic sewage treatment apparatus, and more particularly, to an organic sewage treatment apparatus that completely treats sewage by actively using soil bacterial groups when treating organic sewage.

In general, human beings as natural persons are like other animals in the natural environment, and feces generated in life are being purified by natural purification techniques. However, as mankind began to form villages and today's enormous urbanization, sewage derived from human life has long been beyond the level of natural treatment in the natural cycle, and it has come to a situation where human sewage has to be treated artificially. .

Here, sewage is an opposite concept to constant water and includes the concepts of sewage and wastewater.

The current recognition and technology of sewage treatment have been developed as a convenient means in this context, and in the process of development, mankind is in danger of causing a violation of nature. Nature is not helpless in purifying the dung of dense humans, and it has the power to cope with it if it is strengthened and reinforced with the right understanding.

Since the basic theory of activated sludge treatment was established about 100 years ago as a sewage treatment technique, a number of biological treatments based on activated sludge treatment have been proposed, and organic sewage treatment mainly based on these techniques has been treated.

However, in today's high energy prices due to dense industrial facilities and populations, it is necessary to find ways to treat organic sewage at a lower cost.

To do this, it should be attempted to reestablish the natural purification and apply the natural purification to the treatment of organic sewage.

In addition, the best task to solve the pollution problem of water sources, which is recently becoming a social problem, is to thoroughly regulate the pollutant sources flowing into the water source, and to this end, the standards for the emission of pollutants are being strengthened. Efforts are being made to distribute power to treat sewage and discharge it to meet the requirements.

However, the most widely used sewage treatment method is an activated sludge treatment method developed in Europe and used for several decades.

This activated sludge treatment method is a treatment method by naturally occurring sludge (microbial group), and its processing efficiency is limited, and considering the current trend of gradually requiring high treatment efficiency, only a basic treatment system has a limitation in processing performance. There is a problem, such as the occurrence of odor, excessive amount of sludge treatment, expensive maintenance costs.

The present invention is to solve the problems of the prior art, to provide an organic sewage treatment apparatus that improves the treatment efficiency of sewage by treating the sewage using the same while culturing microorganisms that treat sewage in order to treat the sewage. There is a purpose.

In order to achieve the above object, the present invention provides a sewage treatment apparatus, comprising: a sedimentation separation tank for precipitating and separating solids contained in inflowing sewage; A flow rate adjustment tank for discharging the discharged water discharged from the precipitation separation tank by an appropriate amount; An aeration tank for supplying air to the sewage to improve the treatment efficiency of the sewage introduced through the flow rate adjusting tank; A settling tank for depositing sludge contained in the sewage that has passed through the aeration tank; A concentration tank for introducing and concentrating the sludge precipitated in the precipitation tank; A storage tank into which the treated water in the settling tank flows; A discharge tank for discharging the treated water in the storage tank to the outside; A conveying pipe for returning the treated water in the settling tank to the settling separation tank, the aeration tank and the storage tank in an appropriate amount according to the treatment situation of the sewage; A first air lift for introducing sewage into the inlet of the conveying pipe to convey the treated water in the settling tank through the conveying pipe; A transfer tube for transferring the treated water in the flow rate adjustment tank to the next step; A second air lift supplied to the transfer pipe to push the treated water in the flow control tank to the transfer pipe; An aeration device installed in the aeration tank for supplying air and aeration; An acid pipe for supplying air to the settling separation tank and the storage tank; Provided is an organic sewage treatment apparatus comprising an aeration device, an air supply device for supplying air required for the operation of the diffuser and the first and second air lifts.

1 is a block diagram showing an embodiment of an organic sewage treatment apparatus according to the present invention,

Figure 2 is a block diagram showing another embodiment of the organic sewage treatment apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10, 50: 1st settling separation tank 11, 51: 2nd settling separation tank

12, 52: flow control tank 13, 53: aeration tank

14, 54: concentration tank 15, 55: sedimentation tank

16, 56: discharge tank 41, 80, 81: microbial reactor

The configuration and operation of the organic sewage treatment apparatus according to the present invention will be described in detail through one embodiment of the present invention.

1 is a block diagram showing an embodiment of the organic sewage treatment apparatus according to the present invention, Figure 2 is a block diagram showing another embodiment of the organic sewage treatment apparatus according to the present invention.

1 and 2, the configuration of the organic sewage treatment apparatus according to the present invention, the first and second sedimentation separation tank (10, 50, 11, 51) for segregating and separating the solids contained in the incoming sewage )Wow; Flow rate adjusting tanks 12 and 52 which discharge the first and second settling separation tanks 10, 50, 11, and 51 by controlling the flow rate discharged in an appropriate amount; Aeration tanks 13 and 53 for supplying air to the sewage in order to improve the treatment efficiency of the sewage flowing through the flow rate adjusting tanks 12 and 52; Settling tank (15, 55) for depositing the sludge contained in the sewage passing through the aeration tank (13, 53); Concentration tank (14, 54) for introducing and concentrating the sludge precipitated in the settling tank (15, 55); Storage tanks 17 and 57 into which the treated water in the settling tanks 15 and 55 flows; Discharge tanks 16 and 56 for discharging the treated water in the storage tanks 17 and 57 to the outside; The treated water in the settling tank (15, 55) to the settling separation tank (10, 11, 50, 51), the aeration tank (13, 53) and the storage tank (17, 57) in an appropriate amount depending on the treatment situation of the sewage. Conveying pipes 27 and 67 for conveying; First air lift 28 for introducing sewage into the inlets 25 and 65 of the conveying pipes 27 and 67 in order to convey the treated water in the settling tanks 15 and 55 through the conveying pipes 27 and 67. 68); Transfer pipes (26, 66) for transferring the treated water in the flow control tank (12, 52) to the next step; Second air lifts 29 and 69 which are supplied to the transfer pipes 26 and 66 and push the treated water in the flow control tanks 12 and 52 to the transfer pipes 26 and 66; Aeration devices (24, 64) installed in the aeration tanks (13, 53) for supplying and aeration of air; Acid pipes (22, 62) for supplying air to the settling separation tank (10, 11, 50, 51) and the storage tank (17, 57); Air supply device 20, 60 for supplying air necessary for the operation of the aeration device (24, 64) and diffuser (22, 62) and the first and second air lift (28, 29, 68, 69) Is made of.

In the first embodiment (FIG. 1), a culture tank 18 is formed between the second settling separation tank 11 and the aeration tank 13, and the microbial reactor for decomposing organic substances in the treated water is the first. In the case of the embodiment (Fig. 1), it is installed alone in the culture tank 18, and in the case of the second embodiment (Fig. 2), it is provided in the first sedimentation separation tank 50 and the aeration tank 53.

The first sedimentation separation tanks 10 and 50 are formed with inlets 30 and 70 through which sewage flows, and are connected to the source of sewage, and a passage between the first and second sedimentation separation tanks is formed at the bottom of the center thereof. It is.

Then, the second sedimentation separation tanks 11 and 51, the flow control tanks 12 and 52, the aeration tanks 13 and 53 and the precipitation tanks 15 and 55, the precipitation tanks 15 and 55 and the discharge tanks 16 and 56, respectively. Passages 72, 74, and 76 are formed between the passages of the treated water, and the passage flow rate is adjusted between the flow rate adjusting tanks 12, 52 and the aeration tanks 13, 53 according to the treatment conditions of the sewage. Flow rate regulating devices 33 and 73 are provided to properly adjust the flow rate through the transfer pipes 26 and 66 and the second air lifts 29 and 69.

In addition, the first and second air lifts 28, 29, 68, and 69, which operate by receiving air from the air supply devices 20 and 60, are controlled by valves 21 and 61, respectively. Control of the valves 21 and 61 is controlled by the manager.

Then, the air supply for operating the aeration devices 24 and 64 and the diffusers 22 and 62 and the supply amount adjustment are made by the valves 21 and 61.

Meanwhile, in the first embodiment of FIG. 1, the microbial reactor 41 is installed only in the culture tank 18 to treat organic materials in sewage, but in some cases, the first sedimentation separation is performed as in the second embodiment of FIG. 2. The microbial reactors 80 and 81 may be installed in the tank 50 and the aeration tank 53 to improve treatment efficiency.

Here, the microbial reactors 41, 80, and 81 have a function of culturing and activating soil microbial groups, and the microbial reactors 41, 80, and 81 have soil fungal groups (phenolic). The best habitat conditions (environmental conditions similar to good soils) in the group of bacteria that metabolize using the compound are formed by the sludge described below.

Under these environmental conditions, the soil bacteria group contained in the sludge is selectively cultured, propagated, and activated according to the process of inactivation, thereby inhibiting the growth by inactivating the non-earth bacteria group, that is, the decayed bacteria and E. coli bacteria group. do.

In the microbial reactors 41, 80, and 81, the soil bacterial group is activated while the sewage stays or passes, and the force increases, whereas the non-satellite bacterial group is inhibited from proliferating, and the soil bacterial group becomes dominant.

The sludge in the microbial reactors 41, 80, and 81 is usually changed to soil group for about one month, and when the soil group is almost completely established, it has the following characteristics.

Increased antibacterial and stabilization of treated water, that is, anaerobic decay of residual BOD does not occur even if the treated water is left for a long time, and residual BOD and COD are precipitated to form floc (FLOC) by polycondensation. .

And, even if the sludge is left for a long time, no rot occurs like the treated water. The sludge particle formation becomes uniform, the sedimentation property is improved, and when settling, the interface between the sludge and the supernatant is apparent.

Here, the soil group is composed of soil aerobic bacteria and aerobic anaerobic bacteria group, a group of bacteria expressing phenolic metabolic function, that is, a group of anaerobic bacteria (killed bacteria in free oxygen environment such as methane bacteria) It is a soil bacterium that has a relationship and can inhabit an environment with silicates but no free oxygen.

Materials that activate these soil bacteria include substances containing large amounts of activated silicic acid (sandite, granite, rhyolite, volcanic glass, clay minerals, diatomaceous earth, acidic clay, etc.), and corrosive precursors, i.e. As an extracted material, it is a substance produced by the process of changing organic matter to corrosive material. It is a product of corrosive reaction which occurs when organic matter reacts physically and chemically with phenolic metabolite and material including activated silicate (SILICATE), It refers to metabolites of microorganisms containing oxides of phenolic compounds (chinoic acid, organic acids, polysaccharides, amino acids, etc.).

In addition, as a nutritional substance of soil bacteria, it acts in the soil bacteria group, and there is an aqueous solution of organic matter and arsenic.

In the process of treating the organic sewage, the soil group acts together with the activating material in the sewage containing organic matters, and denatures the organic matters.

In other words, there are low molecular weight processes to enzymatically decompose, decompose and gasify organic substances, and polymerize processes to coalify, corrode and sludge. Most of the processes on the earth are polymerized.

As a result of this process, most organic substances are largely molecularized, sludgeized and corroded, and anti-corruption, that is, inhibiting or sterilizing various bacteria other than soil bacteria such as Escherichia coli, rot, staphylococci, and viruses, Deodorization action occurs due to decomposition or synthesis of malodor molecules, and inorganic ionic substances (heavy metal) and the like are bubbled into the chelate structure.

On the other hand, there are two kinds of activating materials of the microbial reactors 41, 80, and 81 used in the present invention, A and B materials. Among them, the component composition ratio of A materials is as follows.

Silicon oxide (SiO ₂ ): 45.0 to 55.0 wt%, aluminum oxide (Al ₂ O ₃ ): 7.0 to 8.0 wt%, iron oxide (Fe ₂ O ₃ ): 3.8 to 4.4 wt%, potassium oxide (K ₂ O): 0.2 to 0.6% by weight, calcium oxide (CaO): 0.5 to 1.5% by weight, magnesium oxide (MgO): 0.4 to 2.0% by weight, organic matter: 30 to 50% by weight, and remaining water, and the total amount of carbon is 13 to 20 wt%, total nitrogen amount is 0.7-1.4 wt%, carbon and nitrogen composition ratio (C / N) is 10-18, carbon and organic composition ratio (C / organic) is 39-45, acidity ( pH) is 2.65-3.0.

The component composition ratio of the B material is as follows.

Silicon oxide (SiO ₂ ): 80.0 wt% or more, iron oxide (Fe ₂ O ₃ ): 2.5 wt% or less, aluminum oxide (Al ₂ O ₃ ): 7.0 wt% or less, calcium oxide (CaO): 0.5 wt% or less, Magnesium oxide (MgO): The composition is 0.6% by weight or less.

The organic sewage treatment apparatus according to the present invention configured as described above functions as follows.

Sewage flowing from where sewage is generated flows into the first settling tanks 10 and 50, and in the second embodiment, the organic matter contained in the sewage is first decomposed by the microbial reactor 80, and the solid The material settles to the bottom.

Then, the passage formed at the lower end of the center is moved to the second settling tanks 11 and 51, and the solid matter is precipitated again. In this process, in the case of the second embodiment, the organic matter in the treated water is continuously decomposed by the soil bacteria cultured by the microbial reactor 80.

The treated water moved to the flow regulating tanks 12 and 52 from the intermediate position of the second settling tanks 11 and 51 by the flow regulating device 23 in the case of the first embodiment is treated in an appropriate amount. The water moves to the aeration tank 13 via the culture tank 18, and in the case of the second embodiment, the appropriate amount of treated water is moved to the aeration tanks 13 and 53 by the flow regulating device 63.

In the culture tank 18 of the first embodiment and the aeration tank 53 of the second embodiment, microbial reactors 41 and 80 are installed, except for the settling tanks 15 and 55 and the flow control tanks 12 and 52. Since the aeration apparatuses 24 and 64 and the diffusers 22 and 62 are installed in the tank, respectively, the treatment action of the microbial reactors 41 and 80 is activated and processed, and the passage 34 in the aeration tanks 13 and 53 is treated. 74) to the settling tanks (15, 55).

The treated water moved to the settling tanks 15 and 55 is transferred to the thickening tanks 14 and 54 installed in the periphery of the settling tanks 15 and 55 while the sludge generated while treating the treated water is concentrated and stored at the bottom. The water is converted into nearly perfect clean water during the treatment process and stored in the discharge tanks 16 and 56 via the reservoir tanks 17 and 57 and the passages 36 and 76, and then the outlet 37 of the discharge tanks 16 and 56. Through 77).

Here, to move the sludge from the settling tank (15, 55) to the thickening tank (14, 54) in the sludge separation apparatus (35, 75) installed on the top of the thickening tank (14, 54) in the settling tank (15, 55) Separated by.

The sludge that is separated and accumulated in the thickening tanks 14 and 54 is collected and discarded.

The organic sewage treatment apparatus according to the present invention made as described above is a superactive sludge treatment method, and the characteristics of this superactive sludge treatment method are as follows.

1. As the forces of soil bacteria in the treatment system expand, the stability of the treatment is improved, and it has high stability against fluctuations in the external environment such as fluctuations in throughput and temperature.

2. Can be treated immediately without diluting the treated water.

3. The BOD volume load of the conventional activated sludge treatment method is 0.6 kgBOD / m ³ / day), whereas the BOD of the treated water by the super activated sludge treatment method is 10 ppm or less on average.

4. The treated water is hygienic, the number of Escherichia coli is usually 100 / cm ² or less, and the treated water has antimicrobial properties, so that there is almost no rot caused by decomposition of residual BOD, and the biologically excellent treated water is able to inhabit fish.

Claims (6)

An organic sewage treatment apparatus comprising: first and second sedimentation separation tanks (10, 50, 11, 51) for sedimenting and separating solids contained in incoming sewage; Flow rate adjusting tanks 12 and 52 which discharge the first and second settling separation tanks 10, 50, 11, and 51 by controlling the flow rate discharged in an appropriate amount; Aeration tanks 13 and 53 for supplying air to the sewage in order to improve the treatment efficiency of the sewage flowing through the flow rate adjusting tanks 12 and 52; Settling tank (15, 55) for depositing the sludge contained in the sewage passing through the aeration tank (13, 53); Concentration tank (14, 54) for introducing and concentrating the sludge precipitated in the settling tank (15, 55); Storage tanks 17 and 57 into which the treated water in the settling tanks 15 and 55 flows; Discharge tanks 16 and 56 for discharging the treated water in the storage tanks 17 and 57 to the outside; The treated water in the settling tank (15, 55) to the settling separation tank (10, 11, 50, 51), the aeration tank (13, 53) and the storage tank (17, 57) in an appropriate amount depending on the treatment situation of the sewage. Conveying pipes 27 and 67 for conveying; First air lift 28 for introducing sewage into the inlets 25 and 65 of the conveying pipes 27 and 67 in order to convey the treated water in the settling tanks 15 and 55 through the conveying pipes 27 and 67. 68); Transfer pipes (26, 66) for transferring the treated water in the flow control tank (12, 52) to the next step; Second air lifts 29 and 69 which are supplied to the transfer pipes 26 and 66 and push the treated water in the flow control tanks 12 and 52 to the transfer pipes 26 and 66; Aeration devices (24, 64) installed in the aeration tanks (13, 53) for supplying and aeration of air; Acid pipes (22, 62) for supplying air to the settling separation tank (10, 11, 50, 51) and the storage tank (17, 57); Air supply device 20, 60 for supplying air necessary for the operation of the aeration device (24, 64) and diffuser (22, 62) and the first and second air lift (28, 29, 68, 69) Organic sewage treatment apparatus, characterized in that consisting of. The flow rate adjusting device (33, 73) is provided between the flow rate adjusting tank (12, 52) and the aeration tank (13, 53) according to claim 1, which can adjust the passage flow rate in accordance with the sewage treatment situation. Organic sewage treatment apparatus, characterized in that to properly control. The organic sewage treatment apparatus according to claim 1, wherein a culture tank (18) for culturing microorganisms is formed between the flow control tank (12, 52) and the aeration tank (13, 53). The method of claim 1 or 3, wherein the first sedimentation separation tank (10, 50) or aeration tank (53) and the culture tank (18) are soil bacteria that decompose organic matter contained in the sewage and the soil bacteria Microbial reactors 41, 80, and 81 containing active materials for activating are installed, and the composition ratios of the active materials in the microbial reactors 41, 80, and 81 are silicon oxide (SiO ₂ ): 45.0 to 55.0 weight. %, Aluminum oxide (Al ₂ O ₃ ): 7.0 to 8.0% by weight, iron oxide (Fe ₂ O ₃ ): 3.8 to 4.4% by weight, potassium oxide (K ₂ O): 0.2 to 0.6% by weight, calcium oxide (CaO) : 0.5 to 1.5% by weight, magnesium oxide (MgO): 0.4 to 2.0% by weight, organic matter: 30 to 50% by weight, and remaining water, 13 to 20% by weight of total carbon, 0.7 to 1.4% by weight of total nitrogen %, The composition ratio (C / N) of carbon and nitrogen is 10-18, the composition ratio (C / organic) of carbon and organic matter is 39-45, and acidity (pH) is 2.65-3.0 abandonment Sewage treatment apparatus. The method of claim 1 or 3, wherein the first sedimentation separation tank (10, 50) or aeration tank (53) and the culture tank (18) are soil bacteria that decompose organic matter contained in the sewage and the soil bacteria Microbial reactors (41, 80, 81) containing the active material for activating is installed, the composition ratio of the active material in the microbial reactor (41, 80, 81) is more than 80.0% by weight of silicon oxide (SiO ₂ ) , Iron oxide (Fe ₂ O ₃ ): 2.5% by weight or less, aluminum oxide (Al ₂ O ₃ ): 7.0% by weight or less, calcium oxide (CaO): 0.5% by weight or less, magnesium oxide (MgO): 0.6% by weight or less The organic sewage treatment apparatus characterized by the above-mentioned. The air supply apparatus (20, 60) according to claim 1 or 3, wherein the first and second settling separation tanks (10, 11, 50, 51), the culture tank (18), and the storage tanks (17, 57) are described above. An organic sewage treatment apparatus, wherein the diffuser 22 for supplying air from the air is provided.