CN119392796B - An adaptive wastewater discharge management system for sandy beaches - Google Patents
An adaptive wastewater discharge management system for sandy beaches Download PDFInfo
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- CN119392796B CN119392796B CN202411632621.1A CN202411632621A CN119392796B CN 119392796 B CN119392796 B CN 119392796B CN 202411632621 A CN202411632621 A CN 202411632621A CN 119392796 B CN119392796 B CN 119392796B
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- water
- submersible pump
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- electric control
- waste water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/001—Methods, systems, or installations for draining-off sewage or storm water into a body of water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
The invention discloses a self-adaptive sewage discharge management system for sandy beach, which comprises a plurality of waste water pools which can be discharged and are distributed along the coast, wherein the waste water pools can be used for collecting marine product treatment waste water and aquaculture waste water through pipelines, waste water discharge pipelines are paved from the waste water pools to the sea, the water outlets of the pipelines are positioned at positions lower than the water surface when the lowest water level is in refund, the water outlets of the pipelines are unidirectional water outlets, pressure sensors and water flow sensors are arranged at the outer sides of the water outlets of the pipelines, the water inlets of the waste water discharge pipelines are connected with the water outlets of the waste water pools through electric control valves, submersible pumps are arranged in the waste water pools, the water outlets of the submersible pumps are connected with the water inlets of the waste water discharge pipelines through the electric control valves, a controller is connected with the pressure sensors, the electric control valves and the submersible pumps, and the submersible pumps are controlled by the controller to discharge sewage into the sea according to signals of the pressure sensors and the water flow sensors.
Description
Technical Field
The invention relates to a sewage self-adaptive emission management system for sandy beach.
Background
The sea-entering sewage outlet is the last gate for the land source pollutant to enter the ocean environment, is a key node for connecting land and ocean, further enhances the supervision of the sea-entering sewage outlet, clearly determines the specific supervision requirements of the sea-entering sewage outlet, such as setting, recording, monitoring and the like, lays a foundation for standardizing and enhancing the full-chain supervision of the sea-entering sewage outlet, and has important significance for promoting the construction of beautiful bay, guaranteeing the safety of the ocean ecological environment and the like. The ecological environment department recently issues a method for supervising and managing a sewage outlet for sea entry (trial run), on sandy beach of coastal part of China, marine farms are dense, cultivation conditions are crude, no cultivation wastewater treatment facilities exist, wastewater is directly discharged into the sea through concealed pipes, a plurality of waste or white water pipes are densely distributed on the beach, part of drain pipes are damaged, cultivation wastewater is leaked, the beach is eroded, and the coastline landscape is greatly influenced, so that the emission enhancement management is needed urgently.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a sewage self-adaptive emission management system for sandy beach, which controls the offshore emission speed according to the change of tide level, so as to reduce the influence of sewage emission on beach along the coast of sandy beach.
In order to achieve the above object, the present invention is provided with:
A self-adaptive sewage discharge management system for sandy beach comprises a plurality of waste water-dischargeable pools distributed along the coast, wherein the waste water-dischargeable pools are used for collecting marine products to treat waste water and culturing waste water-dischargeable through pipelines, waste water discharge pipelines are laid from the waste water-dischargeable pools to the sea, the waste water discharge pipelines are laid below the sandy beach, water outlets of the pipelines are positioned below the water surface when the water level is the lowest, the water outlets of the pipelines are unidirectional water outlets, pressure sensors and water flow sensors are arranged at the outer sides of the water outlet ends of the pipelines, water inlets of the waste water discharge pipelines are connected with water outlets of the waste water-dischargeable pools through electric control valves, submersible pumps are arranged in the waste water-dischargeable pools, water outlets of the submersible pumps are connected with water inlets of the waste water discharge pipelines through electric control valves, a controller is connected with the pressure sensors and the water flow sensors, the electric control valves and the submersible pumps, and the water pumps are controlled to discharge sewage into the sea according to signals of the pressure sensors and the water flow sensors.
The scheme is that the water outlet of the pipeline is positioned at a position 1 meter below the water surface when the lowest water level is refunded.
The scheme is that the waste water discharge pipeline is fixedly paved by inserting a sand bed and a seabed through a positioning drill rod.
The scheme is that the wastewater discharge pipeline is provided with a controllable telescopic pipeline in the sea water inlet section, the controllable telescopic pipeline is controlled by a controller to extend the length of the pipeline in the sea water inlet section according to the low-level of the minimum refund water level, the position of a water outlet of the pipeline lower than the water surface is guaranteed, when the extended pipeline cannot reach the position that the water outlet of the pipeline is underwater at the minimum refund water level, an alarm is sent out, and when the tide is swelled, the controllable telescopic pipeline is reset.
The scheme is further that the interval distance between the wastewater-dischargeable pools is at least 500 meters.
The scheme is that a sedimentation tank and a discharge tank are arranged in the wastewater-discharging tank, the sedimentation tank is arranged at the water inlet side of the wastewater-discharging tank, the sedimentation tank is connected with the discharge tank through an overflow port, sewage precipitated by the sedimentation tank flows into the discharge tank through the overflow port, and a submersible pump is arranged in the discharge tank.
The scheme is that the controller controls the electric control valve and the submersible pump to discharge sewage into the sea according to signals of the pressure sensor and the water flow sensor, and the method comprises the following steps of:
the first step, determining a difference Z o,Zo＝Zh-Zl between a designed high water level and a designed low water level according to a designed high water level Z h and a designed low water level Z l obtained from the duration tide level data of a local coast, wherein the water level unit is meter;
acquiring data of a pressure sensor and an ambient air pressure value in real time, determining the depth Z t of the seawater at the water outlet of the current pipeline, and controlling an electric control valve and a submersible pump according to the following rule;
When the Z is o+1<Zt, opening the electric control valve and the submersible pump;
when 1<Z t＜0.5Zo +1, the electric control valve is half opened, and the submersible pump is started;
When Z t is less than 1, the electric control valve and the submersible pump are closed.
The scheme is that when Z t＞Zo +1.5, storm surge is considered to occur, and the electric control valve and the submersible pump are closed at the moment.
The power input of the submersible pump uses a variable frequency controller, the variable frequency controller controls the output power of the submersible pump, and the data of the water flow sensor are obtained in real time;
when the reflux speed reaches or is greater than a set threshold value, the submersible pump outputs full power;
and when the reflux speed is smaller than the set threshold value, reducing the output of the submersible pump rate, and further reducing the output of the submersible pump rate along with the further reduction of the reflux speed until the output of the submersible pump rate is stopped.
The scheme is that the designed high water level and the designed low water level are obtained by calculation according to a method of designing the water level in the seaport in JTS 145-2015 (2022 version) of the Port and channel hydrologic Specification.
The invention has the beneficial effects that the tide regulation is utilized to control the discharge of wastewater, the sea-entering discharge speed is controlled according to the change of tide level, and the influence of the sand beach coastal sewage discharge on the beach is effectively reduced.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of the structure of the present invention.
Detailed Description
A self-adaptive sewage discharge management system for sandy beach is shown in figure 1, the system comprises a plurality of dischargeable wastewater ponds 1 distributed along the coast, the dischargeable wastewater ponds 1 are used for collecting marine product treatment dischargeable wastewater and cultivation dischargeable wastewater through a pipeline 2, and the dischargeable wastewater reaching the discharge standard is collected, wherein a wastewater discharge pipeline 4 is paved from the dischargeable wastewater ponds 1 to the middle sea 3, the wastewater discharge pipeline 4 is paved under the sandy beach 5, the wastewater discharge pipeline 4 is fixedly paved by inserting a sand bed and a seabed through a positioning drill 6, a water outlet 401 of the wastewater discharge pipeline 4 is positioned at a position below a water surface 301 at the lowest water level of a refuge, the water outlet 401 of the wastewater discharge pipeline 4 is positioned at a position of 1 meter below the lowest water level of the refund, the water return baffle is used for blocking the sundries from entering a blocking pipeline at the time of expansion, a pressure sensor 7 and a water flow sensor 8 are arranged at the outer side of the water outlet end of the wastewater discharge pipeline 4, the water inlet of the wastewater discharge pipeline 4 is connected with the water outlet of the dischargeable wastewater pond 1 through an electric control valve 9, a submersible pump 10 is connected with the water outlet of the water discharge pipeline 1 through the electric control valve 10 and the water outlet of the submersible pump 10 and the electric control valve 10 and the water sensor 8 in the water flow sensor 10 is connected with the water sensor 10 in the water tank 10 and the water tank according to the electric control valve 9 and the electric control valve 10 and the water flow sensor 8. The size of the wastewater-discharging pool is determined according to the specification of a pipeline and the choice of the submersible pump according to the daily discharge amount, and a network communication module is arranged in the controller and is communicated with a remote control center through the communication module to receive or transmit data and commands.
Due to the final position change of the refund caused by the rising and refund and the weather change (the rainfall amount and the quantity), the phenomenon that the water outlet of the waste water discharge pipeline 4 is not lower than the water surface temporarily occurs, and the waste water discharge pipeline is required to be regulated and controlled at a short distance for ensuring the discharge, so that the waste water discharge pipeline is provided with a controllable telescopic pipeline 402 (such as an elastic stretching controllable telescopic pipeline, a stretching rope is controlled by a controller on the shore through a winding motor) of 30-50 meters when entering the sea water section, the controllable telescopic pipeline 402 is controlled by the controller to stretch into the pipeline length of the sea water section according to the lowering of the refund minimum water level, the position of the water outlet of the pipeline lower than the water surface is ensured, and an alarm is given when the water outlet of the stretched pipeline cannot reach the refund minimum water level under the water, and the controllable telescopic pipeline is reset when the tide rises.
In an embodiment, the plurality of wastewater-capable tanks are disposed at a separation distance of at least 500 meters.
Wherein a sedimentation tank 101 and a discharge tank 102 are arranged in the wastewater-dischargeable tank, the sedimentation tank 101 is arranged at the water inlet 103 side of the wastewater-dischargeable tank, the sedimentation tank 101 and the discharge tank 102 can be connected through a filter screen, the sedimentation tank 101 is connected with the discharge tank 102 through an overflow port 104, wastewater enters the sedimentation tank 101, sewage precipitated in the sedimentation tank 101 flows into the discharge tank 102 through the overflow port 104, and a submersible pump 10 is arranged in the discharge tank 102.
In an embodiment, the step of controlling the electric control valve and the submersible pump to discharge sewage into the sea by the controller according to signals of the pressure sensor and the water flow sensor comprises the following steps:
The method comprises the steps of determining a difference Z o,Zo＝Zh-Zl between a high water level and a low water level according to a designed high water level Z h and a designed low water level Z l obtained from duration tide level data of a local coast, wherein the water level unit is meter;
Acquiring pressure sensor data and an ambient air pressure value (obtained by an air pressure sensor arranged on the shore or from a weather observation station) in real time, determining the sea water depth Z t of a water outlet of a current pipeline, and controlling an electric control valve and a submersible pump according to the following rule;
When the Z is o+1<Zt, opening the electric control valve and the submersible pump;
when 1<Z t＜0.5Zo +1, the electric control valve is half opened, and the submersible pump is started;
When Z t is less than 1, the electric control valve and the submersible pump are closed.
Wherein the sea water depth of the water outlet is obtained according to common knowledge, namely, the water depth (m) = (pressure value-air pressure value)/(water body density multiplied by 0.980665) (pressure unit: dbar, density unit: g/cm 3; global average atmospheric pressure is 10.1325dbar, and average sea water density is 1.0281g/cm 3).
Considering that storm surge can damage the discharge, when Z t>Zo +1.5, the storm surge is considered to occur, and at the moment, the electric control valve and the submersible pump are closed.
In order to more effectively bring sewage to the deep ocean through backflow, a power supply input of the submersible pump uses a variable frequency controller, the variable frequency controller controls the output power of the submersible pump, and the data of the water flow sensor are acquired in real time;
when the reflux speed reaches or is greater than a set threshold value, the submersible pump outputs full power;
and when the reflux speed is smaller than the set threshold value, reducing the output of the submersible pump rate, and further reducing the output of the submersible pump rate along with the further reduction of the reflux speed until the output of the submersible pump rate is stopped.
In the embodiment, the designed high water level and the designed low water level are obtained by calculation according to a method of designing the water level in the seaport in JTS 145-2015 (2022 version) of the Port and channel hydrologic Specification.
According to the sewage automatic discharge management system for the sandy beach, the tide rules are utilized to control the discharge of the sewage, the discharge speed into the sea is controlled according to the change of the tide level, and the influence of the sewage discharge on the beach along the coast of the sandy beach is effectively reduced.
Claims (9)
1. A self-adaptive sewage discharge management system for sandy beach comprises a plurality of dischargeable wastewater tanks distributed along the coast, wherein the dischargeable wastewater tanks are used for collecting marine products to treat the dischargeable wastewater and culturing the dischargeable wastewater through pipelines, and is characterized in that a wastewater discharge pipeline is laid from the dischargeable wastewater tanks to the sea, the wastewater discharge pipeline is laid under the sandy beach, a water outlet of the pipeline is positioned under the water surface when the water level is the lowest in refuge, the water outlet of the pipeline is a unidirectional water outlet, the water inlet of the waste water discharge pipeline is connected with the water outlet of the waste water discharge pool through an electric control valve, a submersible pump is arranged in the waste water discharge pool, the water outlet of the submersible pump is connected with the water inlet of the waste water discharge pipeline through the electric control valve, a controller is connected with the pressure sensor, the water flow sensor, the electric control valve and the submersible pump, and the controller controls the electric control valve and the submersible pump to discharge sewage into the sea according to signals of the pressure sensor and the water flow sensor;
The controller controls the electric control valve and the submersible pump to discharge sewage into the sea according to the signals of the pressure sensor and the water flow sensor, and the method comprises the following steps:
The method comprises the steps of determining a difference Z o,Zo＝Zh-Zl between a designed high water level and a designed low water level according to a designed high water level Z h and a designed low water level Z l obtained from duration tide level data of a local coast, wherein the water level unit is meter;
acquiring data of a pressure sensor and an ambient air pressure value in real time, determining the depth Z t of the seawater at the water outlet of the current pipeline, and controlling an electric control valve and a submersible pump according to the following rule;
When the Z is o+1<Zt, opening the electric control valve and the submersible pump;
when 1<Z t<0.5Zo +1, the electric control valve is half opened, and the submersible pump is started;
When Z t is less than 1, the electric control valve and the submersible pump are closed.
2. The management system of claim 1, wherein the water outlet of the conduit is positioned 1 meter below the water surface at a minimum level of refuge.
3. A management system according to claim 1, wherein the waste water discharge pipe is fixedly laid by inserting a positioning drill rod into the sand bed and the seabed.
4. The system according to claim 1, wherein the waste water discharge pipe is provided with a controllable telescopic pipe in the incoming sea water section, the controllable telescopic pipe is controlled by the controller to extend the length of the pipe in the sea water section according to the lowering of the minimum refund water level, to ensure the position of the water outlet of the pipe below the water surface, and to give an alarm when the extended pipe cannot reach the position that the water outlet of the pipe is under water at the minimum refund water level, and to reset when the tide is rising.
5. The system of claim 1, wherein the plurality of wastewater-evacuable basins are disposed at a separation distance of at least 500 meters.
6. The system according to claim 1, wherein a sedimentation tank and a discharge tank are provided in the waste water dischargeable tank, the sedimentation tank is provided on a water inlet side of the waste water dischargeable tank, the sedimentation tank is connected to the discharge tank through an overflow port, sewage after sedimentation in the sedimentation tank flows into the discharge tank through the overflow port, and a submersible pump is provided in the discharge tank.
7. The management system of claim 1, wherein the power input of the submersible pump uses a variable frequency controller, the variable frequency controller controls the output power of the submersible pump, and the data of the water flow sensor is obtained in real time;
when the reflux speed reaches or is greater than a set threshold value, the submersible pump outputs full power;
and when the reflux speed is smaller than the set threshold value, reducing the output of the submersible pump rate, and further reducing the output of the submersible pump rate along with the further reduction of the reflux speed until the output of the submersible pump rate is stopped.
8. The management system of claim 1, wherein storm surge is considered to occur when Z t＞Zo +1.5, at which time the electrically controlled valve and submersible pump are closed.
9. The system of claim 1, wherein the high and low levels are calculated according to the harbor design levels in version JTS 145-2015 2022 of the harbor and channel hydrologic specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411632621.1A CN119392796B (en) | 2024-11-15 | 2024-11-15 | An adaptive wastewater discharge management system for sandy beaches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411632621.1A CN119392796B (en) | 2024-11-15 | 2024-11-15 | An adaptive wastewater discharge management system for sandy beaches |
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| CN119392796A CN119392796A (en) | 2025-02-07 |
| CN119392796B true CN119392796B (en) | 2025-06-03 |
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| CN202411632621.1A Active CN119392796B (en) | 2024-11-15 | 2024-11-15 | An adaptive wastewater discharge management system for sandy beaches |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110914199A (en) * | 2017-06-18 | 2020-03-24 | 伊恩·法夸尔森 | Deposit control system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1217115B (en) * | 1986-01-06 | 1990-03-14 | Maersk Co Ltd | PROCEDURE AND TANK SHIP FOR THE DISPOSAL OF DRAINING WATERS |
| DE29807659U1 (en) * | 1998-04-28 | 1998-08-13 | Grötz, Georg, 76597 Loffenau | Drainage device for tub-like structures |
| RU2153045C1 (en) * | 1998-12-15 | 2000-07-20 | Кубанский государственный аграрный университет | Storm-sewer system |
| US7025887B1 (en) * | 2005-04-21 | 2006-04-11 | The United States Of America As Represented By The Secretary Of The Navy | Sand filter treatment facility and method for removing toxic metals from storm water |
| RU2615348C1 (en) * | 2016-02-01 | 2017-04-04 | Михаил Иванович Голубенко | Device for cleaned animal wastes discharge into the containment ponds |
| US10883238B2 (en) * | 2019-03-26 | 2021-01-05 | Edward Goodrich | Groundwater management and redistribution systems, and related methods |
| CN118390626B (en) * | 2024-06-19 | 2024-09-24 | 宁波点溪环保科技有限公司 | Rural domestic sewage discharge regulation and control system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110914199A (en) * | 2017-06-18 | 2020-03-24 | 伊恩·法夸尔森 | Deposit control system |
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