JPH0667519B2 - Method of treating feces, urine, organic sludge, sewage, etc. - Google Patents

Description

Detailed Description of the Invention (a) Field of Industrial Application The present invention relates to manure and fish residue produced in livestock and fisheries, organic matter such as dust from households, human waste, sewage sludge, and other wastewater produced in various industries. The present invention relates to a method for treating organic sludge and sewage.

(B) Problems to be solved by the conventional technique and the present invention Conventionally, urine, sewage or raw sewage, sewage sludge, etc. generated in livestock production are diluted and discharged or solidified during fermentation and composting. However, if the former method is used, a large amount of diluting water is required and there is a drawback that it causes a problem of rabbit angle against pollution. However, there is a drawback in that the organic fertilizer produced by the fermenting and composting treatment is low in price, and the profitability is insufficient even though the water content adjusting material is required.

(C) Means for Solving the Problems In view of such drawbacks, the present invention efficiently treats urine and sewage into treated water that can be discharged or can be used as washing water to cause a problem of rabbit angle against pollution. It is possible to use it effectively without using it and to convert feces and organic sludge economically into organic fertilizers, so that feces, urine, organic sludge and sewage can be converted into solid feces, organic sludge and liquid urine and sewage. Separated and sent solid feces or organic sludge etc. to the fermented composting tank for composting treatment,
Urine and sewage are sent directly to the photosynthetic bacterial culture tank to measure the bacteria, and during this time, the high temperature malodorous gas generated in the fermenting and composting tank is supplied to promote the bacterial culture and remove the malodor. The sediment is supplied to a fermenting and composting treatment tank, and urine and sewage are sent to an ultrafiltration device to be filtered and then sent to a reverse osmosis device to be filtered so that they can be discharged or used as purified water and treated. The turbid liquid filtered and separated by the outer filtration device and the reverse osmosis device is sprayed or thrown into the feces, organic sludge and the like in the fermentation and composting treatment tank.

(D) Embodiments and Actions Now, embodiments of the present invention will be described below with reference to the drawings.

First, the feces, urine, organic sludge, sewage, etc. generated in a livestock shed or a human waste treatment plant, a sewage treatment plant, etc. (1) are separated into solid feces, dehydrated cake, organic sludge and liquid urine, sewage, Solid feces, organic sludge, etc. are fermented and composted in the fermented composting treatment tank (2). That is, in the fermenting and composting treatment tank (2), by repeating the mixing, stirring, crushing and aeration treatment of feces, organic sludge and the like with a so-called stirring and turning machine not shown in the drawing, Promote aerobic fermentation and compost.

On the other hand, urine and sewage are once stored in the urine and sewage storage tank (3) and then transferred from the storage tank (3) to the photosynthetic bacterium culture tank (5) by the pump (4). Culture tank (5)
Inside, it is purified by the action of photosynthetic bacteria.

In this case, the urine and sewage transferred to the photosynthetic bacterial culture tank (5) are supplied with the high-temperature malodorous gas generated in the fermentation composting treatment tank (2) by the pump (6). However, since the aerobic fermented material being treated in the fermenting and composting treatment tank (2) has a temperature of 60 ° C to 80 ° C, the high temperature malodorous gas generated from inside the photosynthetic bacteria culture tank (5) Since urine and sewage are heated, it becomes a desirable environment for the generation of bacteria for photosynthetic bacteria that grows best at around 25 ° C to 35 ° C, so urine and sewage are always efficiently purified,
The malodor of the above malodorous gas is also removed.

Subsequently, the urine and sewage in which the bacteria have been cultured in the photosynthetic bacterial culture tank (5) are pumped (7) by an ultrafiltration device (8).
To the treated water that can be discharged or used as wash water by transferring to an ultrafiltration device (8) and then by a reverse osmosis device (9). ), And the concentrated liquids separated by the ultrafiltration device (8) and the reverse osmosis device (9) are treated in the fermentation and composting treatment tank (2), feces, dehydrated cake, Sprinkle or throw in organic sludge, the feces, dehydrated cake,
It becomes organic fertilizer (11) along with organic sludge.

(E) Effect of the Invention The present invention is to purify liquid urine and sewage in a photosynthetic bacterial culture tank as described above, then filter with an ultrafiltration device, and further filter with a reverse osmosis device. Therefore, the produced treated water can be effectively used as washing water, and can be discharged without causing any problem to pollution. Also, urine and sewage transferred to the photosynthetic bacteria culture tank are supplied with high-temperature malodorous gas generated from the aerobic fermented product having a temperature of 60 ° C to 80 ° C in the fermentation composting tank. Since urine and sewage in the photosynthetic bacteria culture tank are heated, it becomes a desirable environment for photosynthetic bacteria that grows best at around 25 ° C to 35 ° C, so urine and sewage can be efficiently purified at all times. At the same time, the malodor of the malodorous gas is removed by being supplied into the bubbles generated in the photosynthetic bacteria culture tank.

Also, since urine and sewage in the photosynthetic bacteria culture tank become high temperature sewage at 25 ° C to 40 ° C, the temperature of the concentrated liquid separated by the ultrafiltration device and the reverse osmosis device also becomes high, so Feces, dewatering cakes, etc. being processed in the fermenting and composting tank
When the concentrated liquid is sprayed or added to the organic sludge, there is no fear that feces, dehydrated cake, fermentation of the organic sludge will be hindered and the amount of the sprayed or input will be reduced by half compared to the conventional treatment area, treatment. The facility is reduced in size, and since there is no need for a water adjustment material to maintain the aerobic fermentation and composting treatment function, it is possible to generate stable organic fertilizer in a short period of time. Since it is possible to economically treat feces, urine, organic sludge, sewage, etc. without using water and without causing the problem of rabbit angle against pollution, it is possible to make a great contribution to the industry. I will get it.

[Brief description of drawings]

The drawing shows an example of a block diagram of an apparatus used for carrying out the method according to the invention. (2) in the figure is a fermented composting treatment tank. (5) is a photosynthetic bacterial culture tank. (8) is an ultrafiltration device. (9) is a reverse osmosis device.

Claims (1)

[Claims] 1. Feces, urine, organic sludge, sewage, etc. are separated into solid stool, organic sludge, etc. and liquid urine, sewage, and the solid stool, organic sludge, etc. are treated in a fermentation composting treatment tank. Fermentation and composting treatment is performed, and liquid urine and sewage are sent to the photosynthetic bacterial culture tank to measure the culture of bacteria, and during this period, the high-temperature malodorous gas generated in the fermentation and composting treatment tank is supplied to the photosynthetic bacterial culture tank. By measuring the growth of photosynthetic bacteria and removing the foul odor of odorous gas, urine and sewage are sent to an ultrafiltration device and filtered, and then sent to a reverse osmosis device to be filtered so that water can be released or washed. Concentrated liquids separated by an ultrafiltration device and a reverse osmosis device while being treated into usable treated water are sprayed or thrown into feces, organic sludge, etc. to be treated in the fermentation and composting treatment tank. A method for treating feces, urine, organic sludge and sewage.