KR960003911B1 - Apparatus and method for waste-water treatment - Google Patents

Abstract

The apparatus comprises an input unit for puting an organic waste matter, a fermentation bath(9) having a waste extracting cover installed at lower side of the input unit, a mixing unit for mixing the organic waste matters in the fermentation bath, a heat supply unit for supplying the heat required in the fermentation process to the fermentation bath(9), a gas discharging unit for discharging a harmful gas generated in the fermentation process of the waste matter, and a control unit(7) for controlling the input unit, the mixing unit, the heat supply unit and the gas discharging unit.

Description

Organic waste disposal method and device

1 is a cross-sectional view of a waste treatment apparatus according to the present invention.

2 is a longitudinal sectional view of a waste treatment apparatus according to the present invention.

3 is a flowchart for explaining a waste treatment method according to the present invention.

4 is a block diagram schematically showing the configuration of a control circuit according to the present invention.

* Explanation of symbols for main parts of the drawings

1: gearmotor 2: chain

3: sprocket 4: shaft

5: bearing 6: pedal

7: control unit 8: heat insulating material

9: fermenter 9a: hot air supply hole

9b: air suction hole 9c: exhaust hole

9d: Feeding hole 9e: Waste input hole

10: outer case 11: strain injection hole

12: waste 13: blade

14: screw 15: high speed motor

16: waste input container 16a: water discharge pipe

17: waste input cylinder 17a: water extraction hole

18: Hopper 19: hot air fan

20: heater 21: magnetron

22: waveguide 23: exhaust fan

24: catalyst 25: deodorizing heater

26: catalyst temperature sensor 27: humidity sensor

28: temperature sensor 29: waste discharge lid

30: deodorant 31: microbial strain

32: hot air supply case 33: hot air fan motor

The present invention relates to a method for treating recyclable waste, and more particularly, to a method and apparatus for treating organic waste.

Today, due to the rapid increase in population, urbanization and industrialization, industrial waste as well as the huge increase in living waste are causing severe environmental pollution and destroying ecosystems everywhere.

If the environment around us continues to be destroyed at the same speed as it is today, the future of the earth will be irreversible.

In the case of industrial waste, not only the waste-producing countries but also other neighboring countries are seriously affected and the damage is so great that efforts are being made to minimize emissions, and monitoring, regulation and countermeasures are also being carried out worldwide. Is done by.

In order to collect and dispose of the household waste generated by the concentration of population due to metropolitanization, the central or local governments of each country suffer from a lot of troubles, and the annual economic burdens for the disposal.

Among these household wastes, there is a significant amount of food waste (about 30%). Food waste is a perishable waste that causes severe odors and has a high water content, which impedes the collection and transportation of household waste, and due to low calorific value Incineration is almost impossible and landfilling for landfill is also serious.

Governments and social organizations in each country are promoting the collection of segregation to solve the above problems, but the effect is insignificant, and the method is not an accurate solution to solve the problem fundamentally.

Therefore, it is urgently required to devise an efficient collection and storage method for perishable waste and to establish an optimal treatment plan to prevent environmental pollution due to waste and to promote the recycling of waste.

An object of the present invention is to provide a method and apparatus for processing such that perishable organic waste can be recycled as a resource.

Features of the present invention for achieving the above object are as follows. An input means for inputting organic waste, a fermentation tank having the input means at the top and a waste taking off lid at the top, a mixing means for mixing the organic waste in the fermentation tank, and heat required for the fermentation process of the waste in the fermentation tank. And a heat supply means for supplying, a gas discharge means for discharging the noxious gas generated during the waste fermentation process, and a control means for controlling the input means, the mixing means, the heat supply means, and the gas discharge means.

When described in detail with reference to the accompanying drawings the configuration and effect of the present invention.

1 is a cross-sectional view of a waste treatment apparatus according to the present invention, FIG. 2 is a longitudinal sectional view of a waste treatment apparatus according to the present invention, FIG. 3 is a flowchart for explaining a waste treatment method according to the present invention, and FIG. A block diagram showing a control circuit configuration.

The waste is put into the waste inlet hopper 18 (S1) and the control unit 7 operates the high speed motor 15 (S2).

The grinding screw 14 is rotated at high speed and waste is transported through the groove of the screw 14 and is crushed by the blade 13 attached to the screw end.

The pulverized waste is supplied to the fermentation tank 9 through the waste input hole 9e, and when the waste is transferred, water flows into the water extraction hole 17a formed around the circumference of the waste input inner cylinder 17 by centrifugal force. Out through the water discharge pipe (16a) formed in the waste input outer cylinder 16 will fall into the sewer.

At this time, the waste water is partially dehydrated so that the water content of the waste stored in the fermentation tank 9 is about 70% compared to the initial stage. When the waste having a 70% water content passing through the feed means enters the fermenter, the control unit 7 operates the gear motor 1 so that the chain 2 connected to the sprocket 3 rotates to rotate the shaft 4. Rotate The shaft 4 is supported by a bearing 5 installed at both ends of the fermentation tank 9, and the pedal 6 connected to the shaft is operated to mix the waste evenly.

The hot air fan motor 33 and the magnetron 21 operate simultaneously by the command of the control unit 7 in order to adjust the mixed waste to a water content (50% to 60%) suitable for fermentation (S3).

The hot air fan 19 installed inside the hot air supply case 32 circulates into the fermentation tank 9 through the hot air supply hole 9a and receives hot air generated from the heater 20 in response to the control unit 7 command. Guided to the waveguide 22 for inducing ultra-high frequency oscillated from the magnetron 21 is irradiated to the waste through the feed port (9d).

The ultra-high frequency heating waste evaporates the internal moisture, and the evaporated water is heated with hot air to be exhausted to the outside, and a drying process is performed to a moisture content (50 to 60%) suitable for fermentation in a short time (S4).

In this case, if the moisture content is 60% or more, the waste water is heated again with the ultra-high frequency and hot air to repeatedly perform the above operation.

In the waste drying process, the humidity sensor 27 installed on the side of the exhaust hole 9c formed in a part of the upper part of the fermentation tank 9 is when the moisture content of the waste reaches 60% by the control unit 7 command. It detects and sends a signal to the control unit (7).

At this time, the control unit 7 stops the operation of the heater 20 and the magnetron 21 and operates the exhaust fan 23 to discharge the high temperature steam inside the fermentation tank 9 to the outside of the fermentation tank 9. Cool the waste inside (S5).

And the control unit 7 detects the temperature of the waste by operating the temperature sensor 28 installed on the side of the fermentation tank (9) (S6).

At this time, if the temperature of the waste is more than 55 ℃ continue cooling and if the temperature is less than 55 ℃ stop the drying process and inform the outside of the administration time of the microorganism strain 31 through the buzzer or light lamp (S7).

The microorganism strain 31 is opened by the strain injection lid 11, and an amount corresponding to about 0.5 to 1% of the amount of waste is input and heated by the ultra-high frequency generated by the magnetron 21 (S8).

Due to the microwave heating, fermentation proceeds, and the microbial strain 31 combines with oxygen to decompose waste, and carbon dioxide is generated and moisture is evaporated during decomposition.

At this time, the control unit 7 operates the humidity sensor 27 and the temperature sensor 28 in order to optimally make the temperature, moisture content, and air amount appropriate for the activation conditions of the microbial strain 31 to increase the waste temperature. Sensing it to be 60 ° C (S9) and then stop the microwave heating generated in the magnetron 21 (S10).

When the temperature sensed by the temperature sensor 28 is 60 ° C. or less, the microbial strain 31 is added again, and the waste is continuously heated at an extremely high frequency until the temperature becomes 60 ° C.

The air required in the step S9 is introduced through the air suction hole 9b, and the heat source required for the fermentation process is designed in the control unit so as to irradiate only very high frequency.

And the magnetron 21 is configured to turn on or off according to the operation of the control unit 7 when the temperature sensor 28 senses the temperature and sends a signal to the control unit (7).

The deodorization cylinder 30 and the catalyst 24 are installed in the upper part of the exhaust hole 9c, and the control unit 7 has the deodorization heater 25 under the catalyst 24 to exert the performance of the catalyst 24. It can maintain a temperature (about 400 ~ 500 ℃) to exhaust the ammonia gas generated during the waste fermentation through the exhaust pipe 23 to the outside harmless and odor.

When the moisture content of the waste is detected to about 15% or less by the humidity sensor 27 (S11), the controller 7 stops all the above operations (S12) and the fermentation process is also finished.

When the waste moisture content in the humidity sensor 27 is less than 15%, the waste water content is heated again at a very high frequency, and the above process is repeated until the waste moisture content is 15%.

In addition, when the water content of the waste is detected to be about 15% or less (S11), the controller 7 stops all the above operations (S12).

The organic waste fermented through the above process can be recycled by opening the waste taking out lid 29 and taking out the fermented product (S13) as feed or compost of livestock.

By the above operation, the present invention can be installed and used in public places such as apartments, as well as places for group cooking such as hospitals, restaurants, military units, factories.

Claims (7)

An input means for injecting organic waste, a fermentation tank (9) having the input means at the top and a waste taking out lid at the bottom, a mixing means for mixing the organic waste in the fermentation tank, and a fermentation process necessary for the interior of the fermentation tank And heat supply means for supplying heat, gas discharge means for discharging harmful gas generated during the waste fermentation process, and control means for controlling the input means, the mixing means, the heat supply means, and the gas discharge means. Organic waste disposal device. 2. The mixing means according to claim 1, wherein the mixing means comprises a gear motor (1), a chain (2) connected to the sprocket (3), a rotating shaft (4) supported by a bearing, and a pedal (6) connected to the rotating shaft (4). Organic waste treatment apparatus, characterized in that consisting of. The fermenter of claim 1, wherein the heat supply means includes a magnetron 21 connected to the outside of the fermentation tank 9, a waveguide 22 for guiding ultra-high frequency irradiated from the magnetron into the fermentation tank, and a fermentation tank at one end of the waveguide. Organic waste treatment apparatus, characterized in that consisting of a feed port (9d) leading to. 2. The gas exhaust means according to claim 1, wherein the gas discharge means includes an exhaust hole 9c formed in an upper portion of the fermentation tank, a humidity sensor 27 provided at an upper end of the exhaust hole, a deodorizing heater 25 connected to the humidity sensor, and a catalyst temperature detection. An organic waste treatment apparatus, characterized in that it is configured to deodorize air exhausted by a deodorization cylinder (30) composed of a sensor (26), a catalyst (24), and an exhaust fan (23). 2. The control unit (7) according to claim 1, wherein the control unit (7) includes a key input unit for manually or automatically enabling the operation, the hot air fan (19), the exhaust fan (24), the gear motor (1), and the exhaust gas. Heater control unit for deodorization, hot air / high frequency output unit for waste drying and fermentation, water content check sensor unit for moisture content check, temperature check sensor unit for fermentation temperature control, operation progress and actual condition detection Organic waste treatment apparatus, characterized in that for controlling the timer and the display unit. When the waste is put in the inlet hopper 8 and the control unit 7 operates the high-speed motor 15, the grinding screw 14 is operated so that the waste is transported through the groove of the screw 14 to the end of the screw 14. Waste is crushed by the blade 13 attached to the fermenter 9 through the waste input lid 9e, and the waste supplied to the fermenter 9 is mixed by the mixing means and then the magnetron 21 Co-heated with ultra-high frequency and hot air oscillated at the same time), and if the heated moisture content is 50 to 60% or less, the temperature sensor 28 installed at the side of the fermentation tank 9 is used to control the waste. When the temperature is sensed by 55 ° C. or higher, the cooling is continued. When the temperature is 55 ° C. or lower, the microbial strain 31 is opened by opening the strain opening lid 11, and the inside of the fermentation tank 9 is introduced, and the microbial strain introduced into the fermentation tank 9 ( 31) at the ultra-high frequency Heat and sense the waste temperature with the temperature sensor 28, if the temperature of the waste is 60 ℃ or more stop the ultra-high frequency heating, the water content of the waste after the fermentation and drying process is about 15% or less When all of the above operations are stopped and the organic waste disposal method to take out the waste. 7. The waste discharge container according to claim 6, wherein when the waste is transported through the groove of the screw (14), water flows out by the centrifugal force into the water extraction hole (17a) formed around the circumference of the waste injection container (17). Organic waste treatment method that falls into the sewer through the water discharge pipe (16a) formed in 16).