JP2009248075A - Non-powered grease trap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a non-powered, simple, low-cost and efficient method for microorganism treatment of oil-containing wastewater discharged from kitchens, water filters in air purifiers, and the like by business operations, which is desired in view of the conventional microorganism treatment of such wastewater in purification tanks called grease traps having the following problems: power is used for feeding necessary oxygen and transporting the treated wastewater, and sufficient attention is not given for providing the optimum habitat for increasing the microorganism activity. <P>SOLUTION: A non-powered oxygen feeding method as an alternative to aeration in the grease trap purification tank, and a microorganism carrier realizing a hospitable habitat for the microorganisms are provided and combined into a system. In the systematization by this combination to create a synergistic effect, respective materials for the cover and the bottom of the grease trap purification tank are selected to enhance the function of this device effectively. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

Detailed Description of the Invention

The present invention relates to a microorganism treatment apparatus and treatment method for oil-containing polluted water. In particular, the present invention relates to a microbial treatment method that is powerless, simple, inexpensive, and efficient in the treatment of kitchen waste oil water and water filter waste oil water of an air purifier.

Conventional technology

In general, kitchen waste oil water discharged from business and water filter waste oil water of an air purifier are treated by microorganisms in a septic tank called a grease trap.

Many microbial treatment apparatuses which treat oil-containing contaminated water in a grease trap septic tank have been proposed (see, for example, Patent Documents 1 and 2). All of these proposed microorganism treatment apparatuses utilize the activity of aerobic microorganisms for the decomposition of oil, and consumption of oxygen is indispensable.

In order to supply oxygen necessary for the activity of microorganisms, aeration is performed using power, but the cost is not negligible, and it is left in failure.

The reality is that the treatment capacity per volume of the grease trap septic tank is still low because the ecology of microorganisms is not enough to provide an optimal living environment for microorganisms.
JP 2000-325938 A JP 2002-86173 A

In these conventional techniques, there is a problem that consideration is not sufficient for preparing an optimal environment that uses power to supply the necessary oxygen, uses power to send treated wastewater, and enhances the activity of microorganisms.

In addition, there is a reality that enormous costs are required to replace an old grease trap septic tank. There is a need for a microbial treatment method that exhibits excellent performance with an inexpensive improvement work on an existing septic tank and that does not require running costs.

Therefore, in view of the above-mentioned problems, the present invention has been devised by researching the ecology of microorganisms and collecting knowledge, and the object of the present invention is to efficiently contaminate oil without using power. An object of the present invention is to provide an apparatus and a treatment method for treating and deodorizing water by microbial treatment.

In order to solve the problem, the present inventor devised a non-powered oxygen supply method that replaces the aeration in the grease trap septic tank, and devised a microorganism carrier that realizes a comfortable living environment for microorganisms. Two ideas were combined and systematized.

Furthermore, through repeated experiments, these two ideas were combined to create a synergistic effect and systemized, and as a means to improve the function of this device, the materials for the lid and bottom of the grease trap septic tank were selected. .

The grease trap septic tank according to the present invention is a microbial treatment tank having a substantially rectangular parallelepiped shape having an inlet and an outlet for treated wastewater and having a plurality of chambers formed by microorganism carriers. The flow of treated wastewater is controlled by the water level of each chamber, and the air in the space between the lid and the lid is in a state where the microorganism support is submerged in the treated wastewater. It is a mechanism to repeat the exposed state.

The treated wastewater is divided into a plurality of chambers by the partition plate of the microorganism carrier, and the treated wastewater flows and moves to the next chamber by a valve connected to a float that measures the water level in each chamber. Yes. The treated wastewater moves through a valve between the chambers. However, since the partition plate of the microorganism carrier has an open cell structure, it is also moved by infiltration.

The microorganism carrier that also serves as the partition plate is one obtained by impregnating open cell ceramics with fermented liquor or fermented vinegar and drying, or one obtained by slicing a wood chip, drying it, compressing it, and molding it with a net-like skin. The microbial support is not limited as long as it is made of inorganic silica as a main component or an organic wood chip, but it is not necessary to have a porous body, and it must have fine continuous bubbles (pores). It is.

With such a mechanism, the grease trap septic tank can breathe fresh air outside by the flow of treated wastewater without using power from multiple ventilation holes prepared in the lid. I can do it.

The lid of the grease trap septic tank is made of a material with excellent heat insulation.

The bottom of the grease trap septic tank is made of a material with excellent far-infrared radiation.

Action

The action mechanism required for the grease trap septic tank obtained by the experiment is summarized as follows.
(1) Identification and growth method of microorganisms that decompose and ferment treatment objects “Microorganisms that decompose and ferment organic matter live in the organic matter”
“It is important that microorganisms inhabit many diverse species. At least 1800 species”
“Microorganisms need a space where aerobic bacteria and anaerobic bacteria propagate in their respective spaces, and both races compete.”
“Because useful microorganisms inhabit the soil, it is only necessary to bury foods that organic matter and microorganisms need in the soil, collect the microorganisms, collect them, and reproduce them.”
“It only has to be grown in the comfort of microorganisms and fixed to open-cell ceramic.”

(2) Stirring and aeration methods that do not use power “The only energy sources are sewage inflow energy and gravity energy.”
“Agitation is achieved by dividing the inside of the grease wrap into multiple tanks and repeating the inflow and discharge of sewage.”
“When the next tank is full, a mechanism is established to allow the sewage to flow in via the interlock mechanism of the float and valve.” (Same as the flush toilet mechanism)
“Instead of powered aeration, the microbial dwelling in the water (open cell ceramic) is repeatedly exposed to the air.”

(3) Propagation of microorganisms “There is a knowledge that microorganisms do not propagate unless they leave a space with escape.”

(4) Comfortable growth conditions for microorganisms “There is a knowledge that generally comfortable growth conditions for aerobic bacteria are 60% humidity and 25 ° C. in the air.”
“Generally, I want to keep the temperature above 15 ° C.”

FIG. 1 shows a first embodiment of the present apparatus.
The processing steps are as follows.
(1) Consists of a plurality of independent tanks, and the waste oil water moves from 1 tank to 4 tanks sequentially. Here, the case of four tanks is illustrated.
(2) The movement from each tank to the next tank is guided to the next tank by opening a valve provided in the lower part.
(3) The valve B is opened and closed by displacement according to the water level of the float F provided at the upper part of each tank.
(4) The float F is displaced between the water levels GL1 and GL2.
(5) The float F opens the valve B when it reaches the water level GL1, and closes the valve B when it reaches the water level GL2.
(6) When waste oil water flows beyond the capacity of each tank, it is structured to flow into the uppermost marginal space.
(7) Opening and closing of the valves provided in each tank has the following restrictions.
When the valve Bn is open, B (n-1) does not open even if the water level of the (n-1) tank reaches GL1. (8) The height of GL2 can be set according to the amount of waste oil used.

Example 2 is shown in FIG.
Since the process is the same as that of Example 1, description is abbreviate | omitted.

The invention's effect

This apparatus not only can supply oxygen by aeration by motive power without power, but also can perform microbial treatment that is several steps better than the prior art.

This apparatus has the advantage that it can be improved by using the existing housing of the grease trap septic tank as it is.

The conceptual diagram of Example 1 is shown. The conceptual diagram of Example 2 is shown.

Explanation of symbols

GL ... Water level SE ... Tank separation partition (microorganism carrier)
B ... Valve F ... Float

Claims (7)

A wastewater treatment tank with an inlet and a discharge outlet for treatment wastewater, which is a roughly rectangular parallelepiped microbial treatment tank, partitioned into a plurality of chambers by a microorganism carrier and having a detachable lid on the top. Oil-containing pollution by microbial treatment, characterized in that the flow of water is controlled by the water level in each chamber and the microbial carrier is repeatedly immersed in the treated wastewater and more than half is exposed to the air in the space of the lid Water treatment equipment 2. The apparatus according to claim 1, wherein the microbial support is obtained by impregnating open-cell ceramic with brewed liquor or brewed vinegar for 24 hours or more and then drying. 2. The apparatus according to claim 1, wherein the microorganism-supporting body is formed by slicing a wood chip, washing it with water, drying and compressing it, and molding with a mesh-like outer skin. 4. The apparatus according to claim 2, wherein the mechanism for controlling the flow of the treated waste water according to the water level of each chamber is controlled by a valve mechanism attached to the biological carrier and interlocks with a float indicating the water level of each chamber. 5. The apparatus according to claim 4, wherein the biological treatment tank has a plurality of ventilation holes in an upper part or a lid. 5. The apparatus according to claim 4, further comprising a lid made of a material having excellent heat insulation properties. 5. The apparatus of claim 4 having a bottom made of a material with excellent far-infrared radiation.

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