KR930007412B1 - Method of treatment of manure - Google Patents

Abstract

The method for treating human or domestic animal excreta comprises (a) introducing the excreta into the mixed digestion tank (A), (b) agitating the mixt. of the excreta, a moisture-regulator, saw dusts and rice hulls by an impeller, feeding oxygene into the mixt. through an oxygene feeder, and disinfecting pathogens by heat of up to 90 deg.C for 2 hours, (c) feeding an anaerobe at 55 deg.C to keep for 15 hr. then an aerobe, in order, (d) agitating it in the oxidation fermenter (B), (e) separating a solid residue and a liquid residue in the centrifugal saperator (C), and (f) maturing the liquid residue in the maturity tank (D) to make a liquid fertilizer, and the the solid residue in the fermenter (F) to make an organic fertilizer.

Description

How to treat manure and livestock

1 (a) is a process block diagram of the present invention, (b) is a process schematic diagram of the present invention,

2 is a view showing a mixed digester of the present invention,

3 is a view showing the oxidation fermentation tank of the present invention,

4 is a view showing a centrifugal separator of the present invention,

5 is a view showing a preliminary ripening bath of the present invention,

6 is a view showing a filter of the present invention,

(A) (b) (c) of FIG. 7 is a figure which shows the fermentation tank of this invention.

* Explanation of symbols for main parts in the drawings

1,1 ', 1' ', 15,27: Slot 3: Screen basket

4,4 ', 4' ', 4' '': Motor 5,5 ', 5' ', 5' '': Motor pulley

6,6 ', 6' ': Belt pulley 7,7', 7 '': Shaft

8,8 ', 8' ', 31: Oxygen supply device 10,10', 13: Heat supply device

19,11 ': Heating tube 12,12', 12 '': Heat sensor

14: space 16: bowl

16 ': inner wall 17: gearbox

18: screw 19: outlet

20,26: drain 21: sponge filtering

22: activated carbon layer 23: sand

24: Gravel 25: Screen Mesh

28: Conveyor 29: Hita

A: mixed digestion tank B: oxidation fermentation tank

C: Centrifuge D: Liquid complete bath

E: filtration tank F: aging fermentation tank

The present invention is not only to be treated without any pollution and pollution before and after the process and the process of treating manure or livestock meal of humans, and manure to produce organic fertilizer and liquid fertilizer as a by-product after treatment and It relates to a livestock meal processing method.

Conventional manure and livestock meal treatment equipments had an end treatment plant installed in the city and county, but this end treatment plant was dug out of open ground and finished with concrete, filled with manure and livestock manure, and settled for a certain period of time and neutralized. After dilution, the water was sterilized by chlorine and discharged, and the residue was used as incineration, landfill, or fertilizer.

However, these end-of-life treatment facilities cannot be coped with the increasing trend of human waste and livestock meal because they are processed by natural fermentation, and there is a problem of continuously digging a pit in the open air by increasing the amount of natural fermentation storage tank. As it fermented naturally in the open air, there were smells around it, which caused disgust to the residents.

In addition, there is a more advanced fertilizer manufacturing apparatus (Jul. 15, 1989 No. 4013) with the theme of phosphate, but the present invention is to collect the phosphate and supply the water supply when filtration through a filter to remove sewage, etc. After dilution, it is discharged, and fermentation and sterilization are administered to chemicals respectively. Water is contaminated by sewage, and soil is contaminated by compound fertilizer with chemicals. There is a problem such as having a reverse function in the destruction of the natural environment, such as a secondary toxicity due to the mixing by being added to the phosphate topic.

In order to solve the above problems all at once, the fermentation of livestock and livestock meal is carried out in a closed tank equipped with optimum fermentation conditions to promote active proliferation activity, which will be described in general. As shown in FIG. 1A, the process block diagram of FIG. 1A and the public schematic of FIG. 2B, after the storage tank, the mixed digestion tank, and the oxidation fermentation tank, are separated into water and debris in a centrifuge.

The water separated in this way becomes a commodity of liquid fertilization through a liquid fertilizer, a filter, a condensation tank, while the residue is made to commercialize organic fertilizer through a fermentation fermenter.

When described in detail based on the accompanying drawings as follows.

Salamin manure and livestock meal collected by trucks should be equipped with a screen basket with strong magnets at the inlet of the reservoir to remove the metals that may be in the collection of the manure and livestock meal when first put into the reservoir. In order to remove impurities such as gravel and gravel, a recess is formed under the inlet of the storage tank, and the foreign matter is dipped and hung, and once again, the wire mesh is also installed on the inlet of the storage tank to remove the contaminants.

In addition, the reservoir is provided with a manhole of a suitable size for convenient cleaning of such impurities.

The manure and livestock meal from which impurities are removed through such a storage tank is introduced through the inlet 1 of the mixed digestion tank A.

At this time, in order to remove impurities, dirt is caught through the screen basket 3 installed on the inlet 1 again.

Thus, the manure and livestock powder, which has been purified by removing impurities, is automatically introduced into the mixed digestion tank (A) by a pump, and the supply is automatically cut off when the required amount of the mixed digestion tank (A) is reached.

Then, 20-25% of manure and livestock meal were fed into sawdust or powdered rice husk, which is an organic substance, to feed moisture regulators and strains, and the water content within 60-70%, which is a favorable condition for bacterial propagation in the mixed digester (A), After adjusting so that the motor (4) is driven at 15-30 rpm per minute, the motor pulley (5) and the belt (6) on the shaft (7) connected by the belt pulley (6) are rotated and stirred, and at the same time the oxygen supply device ( 9) It supplies about 12% of oxygen per volume to stabilize the slurry and urine, and raises the internal temperature up to 90 ℃ through the heating tube 11 connected to the heat supply device 10 for 2 hours. Kill pathogens.

Then, the oxygen supply was stopped and at the same time the heat supply device 10 was cut off and the cooling water was circulated in the heating tube 11 to maintain the temperature at 55 ° C. (a) and the aerobic spawn (Clestridium thermoaceticum Anaerobic treatment is performed to keep the level of oxygenated oxygen as low as possible by adding)) and maintaining it for 15 hours.

In this state, while supplying about 1/12% of oxygen per slurry volume requiring aerobic fermentation conditions, the temperature is rapidly increased to 70-80 ° C while stirring at 30 rpm per minute to stabilize the slurry, followed by rapid culture. And aerobic spawn (Pseudomomas Putida) is added for propagation, and a small amount of concentrated nutrient or urea, sugar, rice bran, etc. is maintained for about 5 hours for active breeding activity of the spawn.

At this time, by the temperature detection of the heat sensor 12 to prevent the temperature in the mixed digestion tank (A) to fall below a certain temperature or below a certain temperature.

The fermented manure and livestock meal are transferred to the inlet 1 'of the main fermentation tank B and the motor 4' is driven at 30 rpm per minute to drive the motor pulley 5 'and the belt pulley 6'. The impeller (8 ') on the shaft (7') connected by the agitator is rotated and stirred, and at the same time, the steam or hot water is supplied to the peripheral space (14) through the heat supply device (13) to increase the temperature in the oxidation fermentation tank (B). It is maintained at −70 ° C., and actively oxidatively decomposes for 50-80 hours while supplying about 12% per slurry volume through the oxygen supply device 9 '.

At this time, the temperature in the oxidation fermentation tank (B) is maintained by 60-70 ℃ by the temperature detection of the thermal sensor 12 '.

When the fermentation is carried out as described above, the motor and the belt pulley driven at about 4000 rpm are supplied to the central portion of the bowl 16 by automatically supplying continuously to the inlet 15 of the centrifuge C at a state of at least 5-10%. 6 '') is rotated at high speed, the manure and livestock powder is sprayed on the inner wall (16 ') of the bowl 16 by the rotational force, and the inner wall (16') of the bowl 16 Manure and livestock meal are forcibly conveyed along the inner wall 16 ', which is a gentle slope of the bowl 16, by the screw 18, which is slightly decelerated by the speed reduction device in the gearbox 17 by the speed of the bowl 16. Dehydrated.

The dehydrated debris is discharged to the discharge port 19, and at the same time, the water woven by the screw 18 (hereinafter referred to as liquid) overflows the drain 20 to drain.

The liquid ratio woven in the screw 18 of the centrifugal separator (C) in this way is transferred to the inlet (1 ″) of the liquid completion tank D from the drain port (20).

The motor (4 ") mounted in the liquid bath (D) then operates at about 30 rpm per minute to rotate the impeller (8") on the shaft (7 ") connected by the motor pulley (5") and the belt pulley (6 "). While stirring the liquid ratio while supplying 12% oxygen per volume through the oxygen supply device (9 "), and aged for about 48 hours while maintaining the 40 ℃ through the heating tube (11").

It is then transferred to the filtration tank (E) to pass through the sponge filtering 21 and the activated carbon layer 22, decolorized, deodorized, debris, sand (23), gravel (24) layer and screen mesh (cotton or synthetic fiber material) After passing through the (25) to be completely filtered, it is transferred to the concentration tank through the drain hole 28, concentrated at a certain magnification, and then packed in a predetermined container to complete the product used as the liquid ratio.

On the other hand, the residue of the water content of 45-50% discharged to the outlet 19 is introduced into the inlet 27 of the fermentation fermentation tank (F) is transferred to the conveyor 28, wherein the temperature in the fermentation fermentation tank (F) is aged 40 ° C is maintained by the heaters 29 installed on both sides of the fermentation tank F, and oxygen is supplied through the oxygen supply device 30 to supply about 8-10% of oxygen per residue, and the fermentation fermentation tank ( The operation of the impeller (31), which is a simple stirring device in F), is operated twice a day for 1-5 days and once per day for 6-15 days with dregs to stir the residue to promote bacterial oxidation. After 15 days, 1.5-2m each day in the drying room, the moisture content of the dregs is dried below 20%, and then packaged by a certain amount to complete the fertilizer.

The present invention treated by such an apparatus and method not only solves the pollution caused by manure at once, but also by-products thereof to produce high-quality organic fertilizer and liquid fertilizer. It is to cultivate the intellect of soil that is acidified by use and solve the local limitations, and it is operated by its own heat source, so it is an innovative invention in preventing pollution due to the low facilities and operation funds.

Claims (1)

The manure and livestock meal from which dirt is removed is fed to the mixed digester A by a pump, and the supply is automatically cut off when the capacity is reached. Then, after adjusting the subsidiary materials so that the water content of manure is within 60-70%, the impeller (8) is rotated at 15-30rpm per minute, stirred and supplied with 12% oxygen per volume, and the internal temperature is 90 ° C. After raising to 2 hours to kill unnecessary pathogens, the oxygen supply is interrupted and the heat supply is interrupted. The anaerobic spawn is added and maintained for 15 hours while maintaining the internal temperature at 55 ° C to lower the biological oxygen demand level. Let's do it. Then, the temperature is rapidly increased to 70-80 ℃ at the same time as the oxygen supply, and the aerobic spawn is added and maintained for about 5 hours while stirring at 30rpm, and transferred to the oxidation fermentation tank (B) while stirring at 30rpm and at the same time the internal temperature It is maintained at 60-70 ° C, and 12% oxygen is supplied per volume to decompose 50-80 hours, and when the corrosion content reaches 5-10%, it is transferred to the centrifuge (C). Then, the manure is forcibly dehydrated by the centrifuge C, and the waste is drained to the outlet 19, and the liquid ratio is drained to the drain 20. The above liquid ratio is matured in the maturation tank (D), and then becomes the commodity of the liquid fertilization through the filtration tank (E). To be commercialized as organic fertilizer.