JPS5832630B2 - Biological identification device for biological treatment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for determining the growth state, activity state, etc. of living organisms in order to increase the efficiency and efficiently carry out wastewater treatment using living organisms, fermentation using microorganisms, production processing using microorganisms, and the like.

Various types of bacteria and microorganisms exist in sludge during water treatment, and the effectiveness of sewage treatment differs depending on the state of microbial reproduction, and depends on whether activation is in a good state or is on a deteriorating trend. In order to improve the effectiveness of sludge treatment, it is necessary to quickly and accurately detect the sludge condition and its changing tendency and control it normally.

The present invention is suitable for accurately detecting and determining such microbial conditions, and it irradiates various electromagnetic waves or sound waves to water being treated by biological treatment, and detects reflected waves, scattered waves, or transmitted waves from aquatic organisms. For those that detect and discriminate waves, etc., a stimulator is provided to apply a stimulus such as an electric field, a magnetic field, an electromagnetic field, a shock, etc. to the treated water, and the detection and discrimination is performed while applying the stimulus. do.

In the following - the invention will be explained by means of a real case.

Referring to Fig. 1, 1 is a pipe for sampling and distributing treated water 2 of a treatment tank using activated sludge, etc., with a laser irradiation device 3 on one side, and reflected and scattered waves of irradiated light and transmitted waves on the other side. A detector 4 is provided to detect the following.

5 is a detection signal discrimination device, and 6 is a chopper device that cuts off the transmitted wave on the laser irradiation axis. For example, a chopper device configured to move a thin wire in and out on the optical axis can be used.

Reference numeral 7 denotes an electrode for forming an electric field in the treated water, which is provided facing the wall surface of the pipe 1, and is connected to a power source 8.

The power source 8 is a high frequency power source, and is engaged so that the chopper 6 is controlled in synchronization with this frequency.

In the above-described apparatus, the treated water 2 of the subject is supplied into the pipe 1 by a pump (not shown), and a laser beam is irradiated therefrom from the irradiator 3.

The irradiated light hits the microorganisms in the water and is reflected, scattered, and transmitted.

These reflected, scattered, and transmitted lights show different values depending on the amount of microorganisms, the type of microorganisms, their activity level, etc.

Such reflected, scattered and transmitted light is collected by the detector 4, detected as an electrical signal, and discriminated by the discriminator 5.

When the laser hits microorganisms in the water, it causes reflection and scattering, and the traveling wave does not travel in a geometrical straight line, but is diffracted into the shadow area, and in other cases, the traveling wave is transmitted and goes straight. When the axis is cut off, the diffracted portion can be detected by the detector 4, and when the chopper 6 is separated, the transmitted light is also detected, and these signals are combined and discriminated.

Of course, the reflected and scattered light differs depending on the angle, and the angular distribution state can be determined while moving the detector 4 or by arranging the detectors at required detection angles.

However, when the laser hits an underwater obstacle and is reflected and transmitted, the sludge and activated sludge are destroyed by simply irradiating them with light.
There is little difference between living insects, etc., and it is not possible to accurately detect the activity level of insects even if the detection signal is discriminated. The living microorganisms and activated sludge begin to move due to the stimulation of this high-frequency electric field.

Dead insects do not perform this movement.

This aquatic organism is a polymeric substance, especially anisotropic in shape,
When the size is larger than the wavelength of light, the intensity of light scattering increases with orientation due to stimulated movement under an electric field.

Therefore, since the transmitted light and scattered light detected by the detector 4 increase and decrease depending on the movement of the microorganisms, the active state of the insects, such as whether they are alive or dead, can be easily determined at the same time.

Figure 2 is a waveform diagram of the detection signal, where a is when electric field stimulation is applied and b is when there is no stimulation.The strength of the detection signal becomes a pulse waveform in response to the laser oscillation pulse, but when the stimulation is applied, In the case of given a, an increased output α to which the insect responds can be detected at time t1.

In similar detection, this does not appear in the case of b, where there is no stimulus, and also the output α does not appear when there are no living microorganisms in the water.

Therefore, the presence of a living organism can be easily detected depending on whether or not this increased output α is detected, and the degree of activity of the organism can be easily detected based on the magnitude of the detection output.

In addition, when several types of insects and microorganisms exist in water, the time to respond to stimulation (relaxation time) is different, and there is a relaxation time depending on the degree of activity, and as shown in figure a, output β is detected at time t2, It can be determined that multiple types of organisms exist in the water.

Furthermore, by inverting the polarity of the applied electric field and increasing or decreasing the electric field strength by the high-frequency power source 8, and by synchronizing this stimulation period as a function of the orientation relaxation time, the detection output can be increased and the detection sensitivity can be significantly enhanced.

In other words, by utilizing the optically anisotropic property of underwater organisms, when light enters, two refracted lights appear, and by changing the frequency of the stimulus, it is possible to obtain the output of birefringence as it is. It is.

Furthermore, by controlling the frequency and intensity changes of the stimulation by the power supply 8 and the chopper 6 in relation to the detection, it is possible to measure the outputs α and β that the living organism responds to while cutting off the transmitted light, so that output detection is not overlooked. This has the effect of allowing you to perform the process reliably and accurately without any problems.

In any case, by applying a stimulus and detecting it, it is possible to detect the presence and amount of living organisms, as well as to determine the degree of activity, and the type of living organisms can be determined at the same time.

The discriminating circuit 5 is not limited to one that takes a graph using an X, Y recorder as shown in FIG. 2, but any other configuration device that discriminates the level of the detection signal, counts the discrimination output, etc. can be used.

Although the above embodiments used electric field action as the stimulating device, magnetic fields, electromagnetic fields, various shocks such as shock waves, thermal changes, ultrasonic waves, etc. can also be used, and software other than lasers can be used as the detection signal. Electromagnetic waves such as X-rays, light rays, and microwaves, as well as sound waves such as ultrasonic waves and high-frequency waves, can be similarly used.

In biological treatment, the activity of microorganisms has a very large effect on reaction time, yield, etc., but it has been extremely difficult to measure the activity of organisms because it is determined based on the mixed state of suspended matter of sludge and dead organisms.

The present invention takes advantage of the fact that when sampling and detecting treated water during treatment operation, some kind of stimulus is given and living organisms respond to it, and the response appears in the detection signal, along with the amount of living organisms, breeding status, etc. The active state can be easily detected, and it is therefore possible to quickly detect whether the target treatment reaction is proceeding as intended and to control accordingly, ensuring that the amount of oxygen, amount of reacting nutrients, pH value, temperature, etc. are always optimized. It is possible to control and perform stable and highly efficient biological treatment, which has great practical effects.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention, and FIG. 2 is a detection signal waveform diagram, in which a is the present invention and b is a conventional example. 2 is treated water, 3 is a laser irradiation device, 4 is a detector, 5 is a discriminator, 6 is a chopper device, 7 is an electrode, and 8 is a high frequency power source.

Claims (1)

[Claims] 1. Irradiation of electromagnetic waves or sound waves into water by biological treatment,
Stimulation that applies an electric field, magnetic field, electromagnetic field, residue, or various shocks to the water of the subject for those who detect reflected, scattered waves, or transmitted waves from water to determine the state of underwater organisms. A biological discrimination device for biological processing, characterized in that the device is provided with the device and performs the detection discrimination while applying a stimulus. 2. A biological discrimination device for biological treatment as set forth in claim 1, which is equipped with a stimulation device that synchronously changes the intensity and polarity of stimulation. 3. An apparatus for identifying organisms that undergo biological treatment according to claim 1 or 2, characterized in that the apparatus is provided with a stimulation device that synchronizes the orientation relaxation time and stimulation frequency of aquatic organisms. 4. Irradiating electromagnetic waves or sound waves into the biologically treated water,
A chopper device for intermittent control of the transmitted waves from the water is provided, and a chopper device is installed to detect the reflected, scattered, deflected, or transmitted waves from the water to determine the state of underwater organisms. What is claimed is: 1. A biological discrimination device for biological treatment, characterized in that a stimulator is provided to apply an electric field, a magnetic field, an electromagnetic field, or various types of shock stimulation, and the stimulation frequency of the stimulator is synchronized with the operating cycle of a chopper device.