JPS5949897A - Waste water disposal plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] ・)・Takumei goes back and purifies wastewater. :t! J Technology 1
2.Furthermore, regarding the water treatment equipment.

IM Ming's ``1.''
[Tap water Pi K-Wastewater treatment of buildings and buildings that are not connected to the east VC exceeds! 1 I'll be able to do it.

1 view (1:,, The problem of living sphere 19 volumes has aroused the interest of the whole world 1-.

ing. Dumping of waste into rivers, lakes and oceans occupies a special place in the overall pollution of living areas. The rapid development of ships has led to the expansion of rivers, lakes, and oceans.

This has significantly increased the consumption of ship waste, and as a result, countries around the world have shut out ships that are not equipped with wastewater purification and decontamination equipment from the territory. This led to a situation where [According to Agreement 1 on the Prevention of Marine Pollution by Waste Materials, Ships (d) must be equipped with such purification and decontamination equipment. Modern ships must be equipped with onboard wastewater treatment equipment] to operate automatically. providing.

Therefore, Tatomo is interested in the development of a high-performance, failure-free device 4 for purifying and removing contaminants from shipboard wastewater. 1i6 water treatment system which can be used on ships under construction (4 is currently well known. However, the provisions of the previous 1JS agreement
1- Since both new ships and existing ships must be equipped with such wastewater treatment systems, this requirement is usually applied to older ships with only a limited 6-hole F tank for improved designs. The issue of installing one set of wastewater treatment (waste water treatment) has been raised. Such people require a large amount of floor space,
In general, it must be installed separately from the aquarium.

[Un) Known as "Teyumatic-Retro", wastewater treatment system +i'V11979 from Rusale 7 Pachinode Co., Ltd.
Published on July 16th, Saren Pate 7 nodes, Yoshifu 1
2) is widely used, but the device,
monitors the level meters on board (the soil layer and lower water level in the water tank), and when it receives signals from these level gauges, it opens and closes the switches of the device accordingly.

The sewage tank also has a water intake unit, the end of which faces the inflow of wastewater is connected by a net perpendicular to the wall of the intake unit and the wastewater flow. .

A water intake pipe and a pipe for recirculating the processed water are installed on the inner wall of the water intake unit. The water intake pipe is connected to the suction end of the circulation pop. 11 of the circulation pump:, all things possible] ζli t, J,
'IE gradient pipe, pressure kata] / and constant pressure supply pipe to l'Y selection conduit 1. The flotation 1-, -, -) and F (Oi-C waste) are purified. The pressure tank is also connected to a pipe that circulates untreated wastewater. A drain was installed on the pipe connecting the wastewater recirculation pipe to the IE Katank.
This ejector is intended to vent the water passing through the pipe. The ejector can communicate with the gas phase part of the collector and with the clarified water tank. It is generally a tube marked with a scale at a predetermined length, and is 15J6.
1. Flotate water at a predetermined ratio. supply to customers.

A special pump injects a reagent such as yect, or ni4 (804) 3'' to coagulate contaminants in the wastewater passing through the pressure tube.

The flotation unit 7 includes a vessel for purifying the water, a drain for removing the flotsam formed during wastewater treatment, and a device for discharging the purified water.

The flotation unit communicates with a sludge collector equipped with a sludge discharge pump and a clarification tank equipped with a clarified water drainage pump. The apparatus further includes a control section electrically connected to the circulation pop, sludge discharge pump and purified water discharge pump, and level gauges for the To and F layers in the sewage tank.

During operation of the device, the circulation pop sucks wastewater from the intake knee, through the intake pipe, and conveys the wastewater under heavy pressure to the pressure tank. In this case, large solid objects carried by the wastewater can be retained by the net 1' of the water intake unit. Approximately 2
Or a heavy pressure gradient of 3 ata (absolute ICE) is created in the pressure tank. Approximately 60 liters of water in the pressure tank is returned to the wastewater intake port through an untreated wastewater recirculation pipe. An ejector connected to the raw wastewater recirculation line aerates the wastewater, and the wastewater sent to the pressure tank contains a significant amount of undissolved air. Approximately 40 g of waste water is delivered to the flotation unit by a constant delivery pressure line. This pipe is designed as a graduated pipe, so
Under constant water pressure in the pressure tank, the rate of inflow meter in the delivery pressure line during contact is constant or unchanged. A coagulant is injected into the water stream sent out by the flotation unit, and the flotation becomes 1:1 gravity. The floating sludge formed in this process is transferred to the sludge collector by a scraper, purified by a curved blade, and the sludge is sucked into the treated water tank! ＋、ru. Equipment for injecting decontamination solvents into water streams is also in disrepair.

Friendly contaminants are retained by the net, and the first
Due to the fact that these solids are washed away by the stream of wastewater entering the water intake unit f through the untreated wastewater recirculation pipe - the above-described device 6. does not suffer from the drawback of low performance. On the other hand, the net becomes clogged with solid matter that is produced as the crop continues.

As a result of the closed cold, the discharge of waste water to the pressure tank is reduced, while the discharge of waste water from the tank to the flotation unit by the pressure pipe between the chambers is constant. .

This reduces the amount of water that flows through the recirculation pipe into the housing of the waste water intake unit and flushes or cleans the screen (reducing the amount of water and increasing the amount of water that clogs the screen). Therefore, the amount of waste water supplied to the pressure tank by the circulation pump is further reduced, and on the other hand, the ratio of waste water discharged from the pressure tank by the metered-rate delivery pressure pipe is 1:J, compared to the previous Ik standard. This causes the flow rate of water returning to the F water tank through the return path of the circulation pipe to decrease again, below μ. The chain of events described above is irreversible and may even lead to failure of the circulating-1 minp. To prevent this, the net must be washed by an external stream of water during operation.

It is an object of the present invention to improve the performance of wastewater treatment equipment by more effective cleaning of the mesh of the wastewater intake unit.

This objective is to carry out each IIM'r along the flow of one wound.
11. Tano・
a wastewater intake unit having a winding and a mesh at the tip of the winding facing the wastewater flow;
a water intake pipe that takes in the water, a recirculation pipe that returns untreated wastewater to the water supply unit, and a circulation pipe that connects the intake pipe with the water pipe and whose outlet connects to the untreated wastewater recirculation material; The flotation unit, which is connected to the output 1 of the circulation pump by a constant immersion delivery output pipe, is connected to the flotation unit 2.1. A 11M sludge vessel and a treated water tank each have a sludge, a discharge pump, and a pump for discharging purified water.
1. A wastewater treatment device including a control section electrically connected to a level meter for the -L layer and lower water level in the Bonog and To water tank for increasing the discharge of purified water, and the control section is connected to the It is electrically connected to the water pipe that connects the water intake agency and the population of the circulating Jg Bonog, and holds the water tank, and the output I of the circulation pump.
” can be connected directly to pipes that recirculate untreated wastewater,
A self-closing valve electrically connected to the control section is fixed +1.
Circulation of transmission route JRj? Nozouki, distributed between the west unit
This is achieved by providing the wastewater treatment device 4 characterized by the following characteristics.

The wastewater intake unit is tightened in front of the net +hi, and its de)
It is desirable to have a 5-gun M + 1-7 ring with an opening for water passage, and the net of the water intake unit is discarded, and the flow path Q is 30 degrees...) and 40 The stream of untreated water fed by the circulation ring, which is inclined at an angle of 100°, passes through the screen, is reversed from the cage, and acts on the surface of the screen, contaminating it. Wash the substance dh.

When using this apparatus for wastewater treatment, more reliable wastewater purification can be maintained even without the presence of personnel.

The wastewater treatment device according to the present invention includes a wastewater intake unit 1 (first
(Figure), includes a layer water level meter 2 and a layer water level meter 3 in the ship's sewage tank 4. The water intake unit 1 has a housing, generally designated 5, with a casing part 6 opening at its lower side, the end of the housing 5 facing the waste water flow. is covered with a mesh T. The water intake unit 1 has an intake pipe 8 for receiving incoming wastewater and a recirculation pipe 9 for recirculating untreated wastewater. A device 10 for washing is also provided,
This device 10 is installed inside the housing 5 and communicates with the outside water pipe (not explicitly shown) via an automatically actuated inlet valve.

The water intake pipe 8 passes through the water pipe 12 and the valve 13 to the circulation body 14.
Connect to people. Cough water tube 12 houses a water pressure sensor 15 . Circulation 19 Bonog 14 is connected to untreated wastewater recirculation '1ff9 through water pipe 16'tF-17 -1°2q.

Water 'ff 16 ist automatic operation rabbit 19 and flow meter adjustment membrane 2
14 is connected to the flotation unit 21 via a delivery line 18. The I″IiAIiA Uni 1 i4
Processed by water pipe 221c (connection 12 with pre-purification water tank 23,
The water pipe 24 is connected to the sludge collector 25 equipped with a pipe 2B. Next, the treated septic water tank 23 has water pipe 27p.
ζyotsu-C purified water discharge pump 28 and connection 17, curved slurry 1. Each container 25 has a slurry, a discharge tube 3゜ and a holder 5.
conclude. 1e
32, along the pipe 31,
+, 1 well 34, the boat 1 via the sunken water pipe 33\
(Explanation 1. Tena l/-1), can be discharged.

Book 1q: Control JI + District in the history of Rokil/L, ) 35, this is tohazuk 117: Level meter 2, layer water level meter 3, circulation IP pump 14, /Pif 2 water discharge ponog 28, Sludge discharge bo 5/fu” 30, self-1 mountaineering car jJ
'1''l 3, 17, 19, Futono 2611 (connect with 2 and water pressure sensor 15 with electric wire).

Water intake unit 1. In order to have a more pronounced effect on the pollutants clogging the net 1 of the net 1 and increase the efficiency of cleaning the inflowing wastewater, the net 7 (Fig. 2) i,; It is arranged at an inclination of 30 degrees to 40 degrees to
The stream 36 of untreated wastewater flowing into the water intake unit 1 in the circulation 1 shell pump 14 and thus into the water intake unit 1 in the circulation lυ1- passes through the net 7 j~
, reverse from the cane knob 6 provided on the front of the net T,
Therefore, both the inner and outer sides of the net T) j's surface 1C action 1. to flush contaminants from the screen to the bottom of the sewage tank.

The angle of inclination of the net T is preferably in the range of 30 degrees to 45 degrees. This is because, along with the force of the water flow reversed from the cane knob 6 of the water intake unit 1, the force of the water flow and 1r force of the untreated wastewater flowing in from the pipe 9 where the untreated waste water is recirculated becomes the most effective. This is because it can only be guaranteed by a certain angle.

When the angle of inclination of the net 7 exceeds 45 degrees, the efficiency of the scraping slope caused by the water flow reversed from the casing 6 becomes extremely low, while when the angle of inclination of the net 7 is less than 30 degrees, a sudden decrease in gravity occurs, which causes the cane knob to The water flow reversed from 6 cannot scrape the contaminants from the surface of the net 7, and the contaminants are further stuck. n mukai v kokoru.

The waste processing apparatus according to the present invention operates as described below.

The circulation pipe 14 (Fig. 1) is used for wastewater intake, and the circulation pipe 14 (Fig. 1)
Waste water is sucked from the maggots 7 and 5 through the net 7, and is conveyed from the pipe 8 to the water pipe 16. Contaminants or solid substances carried by the water flow pass through the wastewater and become suspended in the wastewater. I will prevent it from happening.f shield term bomb 14 person 1
At a predetermined water pressure F in the water pipe 12 following ``, the flow of water is sent to the waste water intake IK to the housing 5 of the t1, and the water pressure sensor 15 is It does not generate a signal to be transmitted to the control section 35, and therefore the valve 19 of the constant delivery pressure horn 1 Aoji 1B does not open.The water flow along the water pipe 1'6IC divides into two parts. %) enters the constant discharge pressure line IBK, and a large portion (approximately TO) is returned to the untreated wastewater recirculation line 9.

This water flow separation is ensured throughout the day in the constant eyelid delivery pressure line by the membrane 20 placed at . The wastewater being treated passes through this pressure pipe 18 and reaches the float 21, where it is finally purified and decontaminated.

The resulting sludge is discharged from the flotation tank 21 through a water pipe 22 to a treated water tank 23.

A water flow flows from the water pipe 16 into the waste water intake unit () 1...using 5 and washes away large solid objects from the net 7.

When the mesh 1 becomes clogged with contaminants, the water pressure in the water pipe 12 before the circulation bong acts on the water IE sensor 15 to transmit a signal to the control section, which closes the valve 19 of the metering pressure line 18. give a signal to do so. In the closed state of the well 19, all the water flow sucked up by the circulation pump 14 enters the untreated wastewater pipe 9 through the water pipe 16, from where it returns to the housing 5 of the wastewater intake unit 1. As a result, the growth directed towards the water pipe 16 becomes more intense, making it easier to wash the net 7 efficiently and remove any stuck contaminants from the net. The installation of the canongs 6 and the slope of the screen according to the direction of the recirculating water flow further facilitate the cleaning of the screen 7.

Flow of recirculated water after passing through the unoccluded eyes of @7 36
(Fig. 2) is reversed from the wall of the cage 6.
fZ) flows at a mirror angle on the outer surface.

Therefore, the contamination blocking the net 7 can be acted upon from two sides. Hit 1. , the flow 36 of the waste lk acts on the blockage nozzle from the inner four of the housing 5, leaves the line at one point, and the flow it 36 reversed from the four-way cage/7 g 6 flows from the outer surface of the mesh T. Contaminants tend to rub off on their proboscises. Such a ) V water gt fif+, ·7) two-direction action makes the cleaning efficiency of i-1 very high. This 1. Cleaned the net 7
1 from the F tank 4 to the water tank 4, which promotes the inflow rate to the tank 12, resulting in a low pressure F compared to the person 11 of the bonder 14 (Fig. 1). When the signal from the water pressure sensor 15 is transmitted again to the control section >35, the control section 35 outputs a constant i^ sending 1tE: J Neu U road 18's own I
Open IIJIJP19, +fF, water jili, no?
, 7>i floats 19 units, and flows in at 211.

4 selection Uni 1. In Toss 1, (I^Water?Sludge generated in the p-conversion vortex rod (+, [Water 11724Nyodde Sludge Collector 2
5 is sucked by pop 3 OK.

The sludge collector is ventilated by a fan 26.

The purified water carried from the flotation unit 21 to the treated tree tank 23 along the water pipe 22 is discharged onto the ship by the pump 2B through the water pipe 27.

In view of the above, by using the proposed device, when the net T is clogged with contaminants, it will not disturb the reliable operation of the system incorporated in the device and will not require the intervention of the crew. It is possible to automatically clean the M137.

It is also possible to completely automatically clean the net T by opening the valve 11 and supplying the cleaning liquid to the net cleaning device 10. Increase 1] (If 1 does not occur, the screen washing device 10 will automatically operate.

Furthermore, since such a device can be easily installed in a relatively narrow space in a machine room, this device 6. On-board use of the system allows replenishment of existing wastewater treatment systems at minimal cost. For example, for a ship with 50 crew members, a volume of 1.7 ms and only 0.7 rr? only requires an area of In addition, the system can be operated using the existing sewage tank without disassembling the sewage treatment equipment on board.

[Brief explanation of drawings]

Fig. 1 is a functional diagram of a wastewater treatment device equipped with a wastewater intake unit according to the present invention, and is shown in a cross-sectional view C in the long sleeve direction.
FIG. 1...Wastewater intake unit, 2...Level meter for mixed layer water level, 3...F wastewater (Xr level meter, 4...Sewage tank,
5...Housing, 6...Casing, 7...Net,
8...Wastewater intake pipe, 9...Untreated wastewater recirculation chopstick, 1o...Network Service J 11,13.1? ,19,
32.34...Automatic valve, 12,16,22,24,2
7,29゜31.33...Water pipe, 14...Circulation pop, 15...Water pressure sensor, 18...Standing power delivery line, 20-i quantity, lock adjustment, 21 ...γ! N-Uni, To,
23...Tokoro J Risai Aquarium, 25...Kura 1. collector, 26...fan, 2B...purified water discharge pump, 30
...Sludge discharge pump, 35...Control classification. Continued from page 1 0 Inventor Vlasii-Mir Anatolyevich Medov Engineering-Ziv Soviet Union Ningrad Ulitsya Gromovar 6 Cavei 50 568-

Claims (1)

[Scope of Claims] H) 1'96 Housings (5) provided in the sewage tank (4) and housings (5) facing the wastewater flow, each arranged sequentially along the water flow. a wastewater intake unit (1) having a net (7) covering the tip, an intake pipe (8) for taking in the wastewater and recirculation for returning untreated wastewater to the water unit (1); [This is a water pipe (1)
a circulation pump (14) connected to the water intake pipe (8) by 2) and whose outlet is connected to the untreated wastewater recirculation pipe (9);
Circulation pump (
A flotation unit (21) is connected to the outlet of the flotation unit 1-(21), and a sludge discharge pump (30) and a pump (30) for discharging sludge water are connected to the flotation unit 1-(21), respectively.
28) with a sludge collector (25) and a treated water tank (
23), a pump (28, 30) for discharging sludge and discharging purified water, and an I/pel meter (2, 3) for the upper and lower water levels in the sewage tank, respectively.
and a control section (35) electrically connected to the control section (35), further electrically connected to the control section (35) and connected to the intake pipe (8) and the inlet of the circulation pump (14). the outlet of the circulation pump (14) is directly connected to a pipe (9) for recirculating untreated wastewater; ) Vct pneumatically connected self-closing valve (19)
The wastewater treatment apparatus is characterized in that the circulation pump (14), the flotation unit, ) (21) are disposed between the circulation pump (14) and the discharge pipe (18). (2) The wastewater intake unit (1) includes a casing (6) which is fastened to the front surface of the net (7) and has one wastewater passage phase opening in its F blade part, and the wastewater intake unit (1) The screen (7) is inclined at an angle of 30 to 40 degrees to the wastewater flow path, so that the flow of untreated wastewater supplied by the circulation pump (14) passes through the screen 1) and the casing (6). ) to 1
Claim 1(r): The waste water treatment device is characterized in that it acts on the surface of the net (7) and washes the pollutants therefrom.