JPH04265191A - Sterilizing equipment in drainage system - Google Patents

Abstract

PURPOSE:To efficiently perform sterilizing treatment of drainage with reduced energy consumption at low cost in high safety by joining a sewage sterilizing tank incorporating a heating heater to a sterilizing autoclave, and supplying steam generated in the sewage sterilizing tank to the sterilizing autoclave. CONSTITUTION:A sewage sterilizing tank 20 incorporating a heating heater 23 is joined to a sterilizing autoclave 1. Steam generated in the sewage sterilizing tank 20 is supplied to the sterilizing autoclave 1. As a result, sterilizing treatment of drainage is efficiently performed by a miniature and compact equipment with reduced energy consumption at low cost in high safety. An excellent feature is realized so that sterilization of a mechanical instrument and drainage treatment are enabled as an equipment of the same system.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to drainage system sterilization equipment. More specifically, the present invention relates to wastewater sterilization equipment for effectively preventing contamination by pathogenic microorganisms or environmental contamination by RI in wastewater from biotechnology research facilities, hospitals, etc.

0002

[Prior technology and its challenges] Genetic recombination, cell fusion,
With the rapid development of biotechnology such as monoclonal antibody technology, the importance of biohazard countermeasure equipment in research facilities has come into focus. These facilities pose problems such as infection by pathogenic microorganisms or RI contamination, and ensuring safety to protect the living environment of researchers and surrounding residents from such risks has become a top priority issue.

[0003] The basic principle of biohazard countermeasures is to contain pathogenic microorganisms within experimental research facilities and to completely sterilize them when they are discharged to the outside. Measures have been taken to prevent contamination by pathogenic microorganisms or RI in various research facilities, but there have been several problems with conventional wastewater treatment sterilization equipment and systems.

[0004] In other words, in terms of sterilization equipment systems that have been adopted so far, for example, in terms of wastewater treatment systems, the capacity scale is such that wastewater for washing hands, showers, and cleaning wastewater from floors and walls for each laboratory in an experimental research facility is used. It is generally known that wastewater is collected and stored in a storage tank weighing several tons, and the collected wastewater is treated by pressurizing and heating it using an external high-pressure steam blower and heating device. There is.

[0005] It is also known that equipment for experiments and examinations in research facilities, hospitals, etc., surgical and medical equipment, etc. can be processed in high-pressure steam blowing equipment. However, in the case of such conventional equipment systems, for example, wastewater treatment systems, enormous running costs and maintenance costs are required, and since the equipment is large-scale, energy costs and construction costs are also enormous.

Another disadvantage is that it is difficult to respond flexibly to changes in the amount of wastewater treated due to expansion of research laboratories and the installation of new drainage systems. Furthermore, with conventional equipment, it is not possible to perform biomonitoring of wastewater in each individual research laboratory, and biomonitoring of wastewater for the entire research facility is not currently performed.

[0007] In conventional equipment, when sterilizing the above-mentioned equipment, it is necessary to install a water supply system and a steam supply system for steam generation, as well as a heat source, and these heat sources and piping systems are unique. There were drawbacks such as the need for a new system. For this reason, it is not only low cost, including the sterilization process of these equipment, but also has high processing efficiency and excellent safety, and can easily accommodate new expansions of research laboratories. There was a desire to create compact, energy-saving wastewater sterilization equipment.

[0008]

[Means for Solving the Problems] This invention solves the above problems by connecting a sewage sterilization tank with a built-in heating heater to a sterilization autoclave, and supplying steam generated in the sewage sterilization tank to the sterilization autoclave. To provide drainage system sterilization equipment characterized by: Furthermore, the present invention also provides for connecting one or more sewage sterilization tanks to one or more sterilization autoclaves, and connecting a sewage sterilization tank to a water tank connected to a water washer whose water level can be freely controlled. One of the specific embodiments is that the water is treated in a sewage sterilization tank so that it can be drained.

FIG. 1 is a block diagram showing an example of the drainage system sterilization equipment of the present invention. In this example, the sterilizing autoclave (1) is installed horizontally and is connected to a hand washing basin (2). In addition, this hand wash basin (2) also has a water storage tank (3).
are connected. The sterilization autoclave (1) is capable of high-pressure steam sterilization of equipment for research experiments, etc., and the waste water from the hand wash basin (2) is first led to the water storage tank (3). . A sewage sterilization tank (20) is also connected to this water storage tank. This sewage sterilization tank (20)
sterilizes wastewater from the hand wash basin (2), etc., and even if this sewage sterilization tank (20) is in operation, the hand wash basin (2)
is available for use.

A water level sensor (5) is installed in the water storage tank (3) to keep the water level within an appropriate range, and the sewage sterilization tank (20
) so that the water level can be controlled according to the operating status. The level-controlled wastewater is led to the wastewater sterilization tank (20) through a pump (21) and a valve (22). This sewage sterilization tank (
20) has a built-in heater (23), and this heater (
23) to sterilize the waste water from the hand wash basin (2) by heating. In this case as well, the water level is controlled by the water level sensor (24). The wastewater treated in the wastewater sterilization tank (20) is automatically drained to the outside through a valve (25) and a filter (26). A characteristic feature of this equipment is that the steam generated in the sewage sterilization tank (20) is used as the heat source and pressurized steam for the sterilization autoclave (1). In other words, the sewage sterilization tank (2
The steam generated at 0) is led to the sterilizing autoclave (1) via a valve (27).

[0011] Sterilization autoclave (1) and sewage sterilization tank (
By distinguishing the objects to be sterilized in step 20), efficient drainage system sterilization becomes possible. In particular, its great advantage is that it utilizes the steam produced by heating waste water. Compared to the conventional method, which required a special steam generator and used tap water as the steam generation source, this point has an advantage in energy saving, downsizing of equipment, and improved operational efficiency. The improvement is significant.

As mentioned above, the horizontally connected sterilization autoclave (1) enables steam sterilization of equipment used in research facilities, etc., and this type of autoclave can be used, for example, in the clean area (A). It also has the feature that it can be used both in the dirty area (B) and in the divided space. Of course, the sterilization autoclave (1) may also be of vertical type.

In the case of the equipment example of the present invention illustrated in FIG. 2, two sterilizing autoclaves (1a) and (1b) are installed horizontally, and these sterilizing autoclaves (1a),
1b) is connected to a sewage sterilization tank (20), a wash basin (2) serving as a sewage discharge source and other discharge sources (2'), and a waste water storage tank (3). The wastewater storage tank (3) is used to adjust the amount of wastewater introduced into the sewage sterilization tank (20),
In addition, when there are a plurality of wastewater discharge sources close to each other (not shown), it can be provided to simplify the piping connection to the sewage sterilization tank (20). Its capacity is large enough to temporarily store wastewater from multiple sources until it is introduced into the sewage sterilization tank (20).

[0014] In the wastewater treatment system comprising such an example of equipment, the wastewater from the wash basin (2) is first led to the wastewater storage tank (3), similar to the example of equipment shown in Fig. 1 above. In the waste water storage tank (3), the stored waste water is transferred to the water level sensor (5).
), a pump (6), a valve (7), and a determination unit (8). The wastewater is led to a sewage sterilization tank (20). The sewage sterilization tank (20) has a built-in heater (23), and the heater (23) heat-sterilizes the waste water from the waste water storage tank (3). Further, a drainage control device (4') consisting of a water level sensor, a pump, a valve, and a judgment section is connected to the sewage sterilization tank (20), and the sterilization autoclave (1a)
Alternatively, condensed water after sterilization in the sterilization autoclave (1b) can be introduced into the wastewater sterilization tank (20).

On the other hand, the sewage sterilization tank (20) is provided with a path for automatically draining the treated wastewater to the outside through a valve (25) and a filter (26) while controlling the water level with a water level sensor (24). ing. Steam generated by heating the wastewater in the wastewater sterilization tank (20) is used as a heat source or pressurized steam for the sterilization autoclaves (1a) and (1b). For this purpose, for example, as shown, the steam can be supplied to the sterilizing autoclave (1a), (1b) via valves (27a), (27b). In addition,
A heater may be further installed inside the sterilization autoclave (1a), (1b).

In the above example, the control system, sensor group, and other detailed equipment are not limited at all, but various equipment can be provided in a conventional manner. Furthermore, various configurations are possible regarding the capacity of the autoclave, the safety system, and the piping system. For example, instead of the example shown in FIG. 2, a plurality of sewage sterilization tanks (20) can be installed, and the waste water from the waste water storage tank (3) can be treated while being switched in its introduction.

[0017]

[Effect of the invention] This invention enables sterilization of wastewater, etc.
With a small and compact device, it can be carried out efficiently with energy saving, low cost, and high safety. In particular, it has the excellent feature of being able to treat wastewater as the same type of equipment that sterilizes equipment, etc.

[Brief explanation of the drawing]

[Figure 1]

FIGS. 1 and 2 are block diagrams illustrating the equipment of the present invention.

[Explanation of symbols]

1, 1a, 1b Sterilization autoclave 2 Hand wash basin 2′　Other drainage sources 3 Drainage water tank 4 Drainage water level control device 4' Drainage control device 5 Water level sensor 6 Pump 7 Valve 8 Judgment department 20 Sewage sterilization tank 21 Pump 22 Valve 23 Heater 24 Water level sensor 25 Valve 26 Filter 27, 27a, 27b valve

Claims (3)

[Claims] 1. Drainage system sterilization equipment, characterized in that a sewage sterilization tank with a built-in heating heater is connected to a sterilization autoclave, and steam generated in the sewage sterilization tank is supplied to the sterilization autoclave. [Claim 2] Claim 1, wherein one or more sewage sterilization tanks are connected to one or more sterilization autoclaves.
drainage system sterilization equipment. 3. Drainage system sterilization equipment, characterized in that a water storage tank connected to a water washer and whose water level can be freely controlled is connected to the sewage sterilization tank, and the washing water can be treated in the sewage sterilization tank and drained.