JPS5827681A - Automatic collection of sampling waste water and storage of collected water - Google Patents

Abstract

PURPOSE:To remarkably alleviate the load of a collecting operator and to lower the cost of water-collection for sampling, by automatically collecting purified water in an industrial place into a water-collecting tank at the desired time of a predetermined date, and keeping the water-collecting tank cool until its recovery for reuse. CONSTITUTION:When a 24hr timer 4 preset by turning ON a weekly timer 8 is driven, a 60sec timer 5 attached to the timer 4 is operated for one minute to open a solenoid water-supply valve 6 for one minute. Consequently, purified waste water W which has been pumped up by a water in-take pump 14 and let flow through a water in-take pipe 12 and a water supply pipe 9 is collected by about 1l in a water-collecting tank 7. The water-supply valve 6 is then turned OFF, and the collectionand discharge of the purified water W are repeated again, so that the purified water is collected in the water-collecting tanks 7a, 7b. When each of the water-collecting tanks 7, 7a, 7b is recovered on the same day, a gate of a lower chamber 2c is opened, the tanks 7, 7a, 7b are taken out and accommodated in a vessel such as a cooler, and new water-collecting tanks are set again.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a system for automatically collecting a certain amount of purified wastewater into a water sampling container on a regular basis in a large-scale purification treatment facility for domestic wastewater, industrial wastewater, etc., and collecting the water sampling container. This relates to an automatic sampling method for wastewater that is to be stored until the water is removed, and a method for storing the sampled water. It has become mandatory to report on chemical oxygen demand (BOD), biochemical oxygen demand (BOD), etc. in wastewater. For example, in the case of the Aichi Prefectural Ordinance that stipulates the total water quality regulation of Ise Mizo, the total drainage volume per day (daily average total drainage volume) is 30 days (one month) at a workplace of 50 to 99 m'/day. 1 time, ■100-199m'/
Once every 14 days (two weeks), ■20
0 to 399m''/7 days (1 week) at the field office
Every day at the workplace of ■4007F1'/day, such treated wastewater must be sampled before being discharged and transported to the required inspection agency for inspection. For this reason, a dedicated water sampling manager is required for each of these originally unmanned workplaces, or a water sampling manager has to go to the scattered workplaces9 to collect water. 1.It is unreasonable.

First, the COD%ROD etc. of the discharged wastewater are of a nature that changes from moment to moment throughout the day.For example, during the morning and evening hours when a large amount of domestic wastewater flows in, and during the daytime working hours when industrial wastewater flows in, etc. Various kinds of inflow wastewater flows into the tank, which is purified and released. Therefore, it is convenient to collect water from such treated wastewater according to the required times such as morning, star, and night. In view of the above-mentioned points, the present invention is intended to ensure automatic sampling of purified wastewater in this type of unmanned facility.

In addition, unattended sampling and management of treated wastewater discharged from dispersed workplaces with different average daily wastewater volumes,
When water is sampled in the morning, noon, and at night, or when it is left on a starry night and collected the next day, the quality of the sampled water naturally changes depending on the environment of the workplace, and the water quality may change, especially in the summer. The change is noticeable and it is meaningless as a test sample for COD%BOD, etc. For this purpose, it may be necessary to collect the water from the water sampling container after the water has been sampled, and to maintain and store the water in a manner that does not at least change the water quality until it is used for testing.

Therefore, in addition to the automatic water sampling means for treated wastewater, the present invention also provides a means for storing the sampled water.

First, in the attached drawing showing an example of the principle of an automatic water sampling device (S) suitable for installation in a workplace with an average daily total drainage volume of 200 to 599 m'/day, (1) is a box-shaped frame structure. The inside of the box is divided into 5 rooms (top, middle, and bottom) (2
), C2&), (2b) or the upper two compartments, and an opening/closing door (
(not shown). Among them, the upper chamber (2) accommodates the control tie i, and the middle WIC 2- accommodates the solenoid valve.
, a lower chamber (28 is a storage chamber for a water sampling container). (3) is a weekly timer, which is activated when the set day of the week arrives.

(4), (4a), and (4b) are three 24-hour timers installed in parallel, the weekly timer (8) and the line 1)
, its branch lie/(Lll), (L, 12), (Ll
5) and are connected and wired respectively, and are activated when the respective set times arrive. C5)% (5m) and (5b) are timed by three 60-second timers installed in parallel, and the 24-hour timer (
4), <4&Js (4b) and the respective line (C21),
(C2) and (C23) are connected to each other.

(6), θa), (6b) are intermediate (C31), (C3
2) , connect wiring through (C53) and open each water supply valve (6), (5a), (5b) t- while the 60 second timer (5) s (5a) s (5b) is activated. .

(Te)%(7a)-〇b) are three water sampling containers housed in parallel in the lower chamber (2c), with a water sampling capacity of approximately 11 times @(8)%(8a) 5( 8b) are three water pipes arranged in parallel, the upper ends of which are connected to the water supply valves (6) and (6).
a) and GSb), and their lower ends are inserted into the water sampling containers (7), (7ω, (7). (9) is 3
A water pipe that connects the water supply valves (6), (6a), and (6b) of the body, and one of the left and right walls of the intermediate chamber (2b) is an inlet (9m), and the other is an outlet (9b). It is said that The shout is a discharge passage for treated wastewater (CW) installed at the end of the factory, (
(b) is a dam built on the outflow passageway, and this dam (6)
) is overflowing from the treatment drain and released to the outside 15! -Greru. A water sampling pipe is used to sample wastewater before discharge, one end of which is connected to the inflow port (9a), and the other end is connected to the water sampling port (1).
2a) If necessary, the strainer is submerged in the strainer. (4) is a motor-driven water sampling pump installed in water sampling management, and the pump C1→ and the line (
Ll) C) Branch line (C2) is connected and wired.

At this time, the water sampling pump) can be replaced by a submersible pump with a strainer. (b) is the outlet (9b)
) is a drain pipe connected to the terminal drain port (1
5a) will be extended to just after the dam (b) to discharge it to the outside. (16) is a drive motor that cools and refrigerates the lower chamber (2c), and the drive motor (B) and the branch line (L6) of the line (Ll) are connected and wired.

So now, weekly timer (8) is set to t-Wednesday,
Also, 24 hour tie 1 (4)s C4a), (4b) (7
) are set at 9:00 a.m., 5:00 p.m., and 9:00 p.m. When the set Wednesday comes, first, the weekly type (8) is ONL, and the water sampling pump () is set to ONL. The drive is started, and part of the treated wastewater (w) before being discharged is transferred to the strainer α.
The water is pumped up through the system, circulated through the water sampling pipe (b), water pipe (9), and drainage pipe (drainage pipe), and then discharged to the outside immediately after the dam (b).
A circulating flow is formed, and this is repeated throughout the set day or until the water is completely drawn into the water sampling container (7b). The latest treated wastewater (supplement) is always supplied. Also, the O of the weekly timer (8)
Due to the N, the motor (to) for cooling and refrigerating the lower chamber C3c) starts driving, and starts keeping the lower chamber C3c) cold. Next, set the 24-hour timer (4) at 9 a.m. at the set time.
When the timer [4] comes, a 960 second timer (
6) operates for 1 minute. With this, the electromagnetic water supply valve (6) is set to 1.
The water is drawn up by the water sampling pump), and the water is drawn up by the sampling pipe.
, water pipe (9) t- between the treated wastewater passing through It-.

Water is collected from the water sampling container (approximately 11 times) through the water pipe (8) (60 seconds timer), and the water supply valve (6) is set to 1.
After operating for a minute, the water supply valve (6) is turned OFF9, and the circulation of water sampling and wastewater from the treatment drainage port is repeated again. after that,
When the 24-hour timers (4a) and (4b) reach the set time, the respective 60-second timers (5a) and
(5b) is activated, and the water supply valve (6a) sθb) linked to the timer 6ω, (5b) is opened, thereby filling the water sampling containers σω, σb) with approximately 118 liters of water! If water is to be collected on the same day, the collection manager opens the door of the lower part 1i1 (2c), 5 water sampling containers (te), σ&), (7b)
t-take out, store it in a container such as a cooler that you brought with you, and set a new water sampling container S again. At this time, the final water sampling container (7bl has a floatless switch at>
ybus is inserted, and at the same time the third water sampling container (7b) is taken out, the motor for cooling and refrigeration of the lower chamber (2c) is turned on.
) stops its operation. In addition, although the water sampling pump) normally operates during the set days of the week, the water sampling container (7
It is also possible to stop the operation of not only the motor but also the water sampling pump at the same time as the BL is taken out.

Alternatively, place a stop switch (
The motor (to) is set up when the door is opened.
1 Stop the operation of each of the water sampling pumps.

9.Water sampling containers (7), (7a), (7b) t- Even if the water is collected the next day, it is collected by the same means as above, but at this time the water sampling pump is already activated. has stopped. However, as mentioned above, the drive motor 1 stops driving only after all the water sampling containers (γ), (7a), and (7d) are taken out of the storage (2 cm).

In the present invention, we have described a device that is suitable for installation in workplaces where water sampling is required once a week, but if this device is applied to water sampling once every 30 days or once every 14 days, there will be problems. However, if a monthly timer is used instead of the weekly timer (8), it can contribute to rationalization of water sampling in a similar manner. In addition, in the case of workplaces that are required to collect water daily,
Weekly tie: v(8) described above is not required, and water is automatically sampled at the required set time S using 24-hour tie'' (4), (4a), and (4b), thereby streamlining water sampling. can.

In addition, if the water sampling interval is relatively long, such as once every 30 days or once every 14 days, the device should be set up the day before or early on the day of sampling, and after the water sampling is completed. By carrying the device to the next workplace and repeating this process, it is possible to effectively utilize the device between small-scale businesses. In this case, it is possible to deal with this by reducing the size and weight of the entire device so that it can be easily carried.

In addition, in the present invention, water sampling containers (7), (7a1, (7b)
We have explained the case where the treated wastewater (W) sampled in 2015 is cooled, kept under cold conditions, and stored for the required period of time. be.

In addition, in the present invention, the case where water is sampled approximately six times a day has been described, but taking into consideration the characteristics of each workplace, it is possible to
c It can also be set to about 1 or 2 times. It is appropriate that this be determined by the ordinances of each local government. Of course, this does not preclude water sampling from being carried out more frequently.

As described above, the present invention is configured so that treated wastewater from a workplace can be automatically sampled into a water sampling container at a predetermined time on a predetermined date, so that significant streamlining can be achieved through automation of water sampling. . In addition, since the water sampling container is configured to be kept cold until it is collected, it is effective for preserving samples without causing deterioration even if the treated wastewater in the water sampling container is left for a long time. That's ridiculous, it puts a huge burden on collection managers.
It also has significant effects such as reducing water sampling costs and contributing to the reduction of water sampling costs.

[Brief explanation of the drawing]

The drawing is an overall schematic diagram showing an example of the principle diagram of the present invention. Code table [F]) Automatic water sampling device (to) Connection line W process/
Drainage (1) Box (2) Warehouse (8) Weekly timer (4) 24-hour timer (5) 60-second timer (6)
) Water supply valve (TE) Water sampling container (81 (9) Water pipe discharge passageway (B) Weir □□□ Water sampling pipe 01
9 Strainer (4) Water sampling pump house) Drain pipe
(To) Drive motor (B) 7 is -less switch (G) Stop switch Patent applicant Fujiyoshi Kogyo Co., Ltd. Agent Benho + Suiha Ako

Claims (1)

[Claims] +11 A method for automatically collecting wastewater from a workplace, which is characterized in that it is configured to automatically collect treated wastewater from a workplace into a water sampling container at a preset time on a set date. , automatically collects water into the water sampling container at the required set time on the set date,
A method for automatically sampling and storing wastewater, characterized by being configured such that the water sampling container can be kept cool until it is collected.◎