CN115403173B - Reclaimed water recycling system of sewage treatment plant - Google Patents
Reclaimed water recycling system of sewage treatment plant Download PDFInfo
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- CN115403173B CN115403173B CN202211218111.0A CN202211218111A CN115403173B CN 115403173 B CN115403173 B CN 115403173B CN 202211218111 A CN202211218111 A CN 202211218111A CN 115403173 B CN115403173 B CN 115403173B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
- C02F11/147—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents using organic substances
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/10—Solids, e.g. total solids [TS], total suspended solids [TSS] or volatile solids [VS]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/18—PO4-P
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/42—Liquid level
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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- Environmental & Geological Engineering (AREA)
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Abstract
The application relates to the technical field of wastewater treatment and utilization, in particular to a reclaimed water recycling system of a sewage treatment plant. Including contact tank, reclaimed water treatment system and first water pump, contact tank and reclaimed water treatment system intercommunication, first water pump is arranged in taking out the primary water in the contact tank to reclaimed water treatment system, reclaimed water treatment system is including sand filter jar, carbon filter jar, filter and the water storage jar of intercommunication in proper order, each water system in the water storage jar intercommunication sewage plant. Can effectively improve the sewage utilization rate in the sewage plant.
Description
Technical Field
The application relates to the technical field of wastewater treatment and utilization, in particular to a reclaimed water recycling system of a sewage treatment plant.
Background
Reclaimed water, also called reclaimed water, is used as waste water which is used by people in life and production and is free of excrement and kitchen waste water, waste water (free of excrement and sewage) and domestic sewage (waste water) and is reused as waste water which is not in direct contact with human bodies, such as ground cleaning, flower watering, car washing, air conditioning cooling, toilet flushing, fire fighting and the like after being subjected to current collecting and regenerating treatment. However, the water quality index is lower than the water quality standard of the drinking water in urban water supply and higher than the water discharge standard of the water allowed to be discharged into the ground, and the water quality is between the water quality of the domestic drinking water and the water quality standard of the running discharged sewage, so the water is named as medium water.
For sewage plants, a large amount of sewage is treated daily, whereinThe sewage of (1) must have high-quality miscellaneous drainage and domestic sewage, the reclaimed water can be obtained after the sewage is treated, and a great amount of water is required every day in a sewage plant, for example, 4-6m is required for flushing one dehydrator 3 The dosage water in the water, the sludge dewatering machine room and the sludge concentrating machine room is about 45-50m per day 3 For lawn greening, 2L of water is needed per square meter, and the water consumption of a large sewage plant for one year is about 6000-7000m 3 The water used in these places is tap water. The water used in the places is not required to be contacted with a human body, and the purpose can be achieved by adopting reclaimed water with the water quality index higher than the water quality standard of the ground water body discharge standard of the sewage, so that reclaimed water recycling is carried out in a sewage plant, and the reclaimed water is used in places with low water quality requirements, thereby being an effective way for saving and reasonably utilizing water resources, being an important guarantee measure for fully utilizing the water resources and reducing water consumption in the sewage plant, and being a problem to be solved urgently.
Disclosure of Invention
The technical problem solved by the application is to provide the reclaimed water recycling system of the sewage treatment plant, which can recycle reclaimed water in the sewage treatment plant, and the reclaimed water obtained by sewage treatment is used in various water use places in the plant, so that the utilization rate of water resources is improved, and the water consumption is reduced.
The basic scheme provided by the application is as follows: the utility model provides a sewage treatment plant reuse of reclaimed water system, includes contact tank, reclaimed water treatment system and first water pump, contact tank and reclaimed water treatment system intercommunication, first water pump is arranged in taking out the primary water in the contact tank to reclaimed water treatment system, reclaimed water treatment system is including sand filter tank, carbon filter tank, filter and the water storage tank of intercommunication in proper order, each water system in the water storage tank intercommunication sewage plant.
The principle and the advantages of the application are as follows: the primary water which is stored in the sewage plant and is not treated by reclaimed water is initially treated, high-quality miscellaneous drainage (without excrement and kitchen drainage), miscellaneous drainage (without excrement and sewage) and domestic sewage (waste) water are initially treated and then are stored in the contact tank, the primary water is pumped into a reclaimed water treatment system through a first water pump, the primary water sequentially passes through a sand filtration tank, a carbon filtration tank and a filter in the reclaimed water treatment system for regeneration treatment, impurities are removed, reclaimed water which reaches the use standard is obtained after treatment and is stored in a water storage tank, the water storage tank is communicated with various water systems through a water outlet pipe, and when the various water systems need water, the treated reclaimed water which reaches the use standard can be used in scenes which need to be used in the sewage plant, such as flushing of a dehydrator, dispensing of an offline and concentration machine, dispensing of a pharmacy, greening and watering of a lawn, and the like. By means of the method, high-quality miscellaneous drainage, miscellaneous drainage and domestic sewage in the sewage treatment plant are treated again and recycled in the factory, the running water consumption can be saved, precious fresh water resources can be effectively utilized and saved, the discharge amount of sewage and waste water can be reduced by colleagues, and the overload phenomenon of urban sewer can be relieved.
Further, the water system for the sludge concentration machine room comprises a water pipeline for the rotary drum concentrator and a water pipeline for the plate-and-frame filter press, wherein the water pipeline for the rotary drum concentrator is used for providing back flushing water for the rotary drum concentrator; the water pipeline for the plate-and-frame filter press is used for providing the press water and the back flushing water for the plate-and-frame filter press.
In a sewage plant, the water content of the sludge is reduced, a large amount of water is needed in the use process of a rotary drum thickener and a plate-and-frame filter press in the sludge concentration machine room, tap water is adopted in the past, and reclaimed water can be used in the backwash water of the rotary drum thickener, the squeeze water and the backwash water of the plate-and-frame filter press, so that the backwash water or the squeeze water can be directly taken into a water storage tank when the water is needed by respectively connecting a water pipeline of the rotary drum thickener and a water pipeline of the plate-and-frame filter press into the water pipeline when the water is used.
Further, the water system for dispensing comprises a dispensing pipeline of the sludge concentration machine room, a dispensing pipeline of the sludge dewatering machine room and a dispensing pipeline of the dispensing room, and the water system is respectively used for providing the dispensing water for the concentration machine room, the dispensing water for the sludge dewatering machine room and the dispensing water for the dispensing room.
The sewage treatment plant needs to use a large amount of medicines, a flocculating agent is needed in a sludge concentration machine room and a sludge dewatering machine room, and a conditioning agent, a defoaming agent, a disinfectant and the like are arranged in a dosing room.
Further, the greening water system comprises a plurality of greening water pipelines distributed in the greening area of the sewage plant and used for providing greening water for the greening area.
In the past, tap water is also used for greening in a factory, and the larger the greening area of the factory is, the more water is needed to be used, generally, the greening watering can be carried out at least twice per month in the factory, and a large amount of tap water can be used in one year. The greening pipeline is used for providing reclaimed water for greening and watering, so that a great deal of cost is saved.
Further, still include cistern and second water pump, the contact tank still communicates with cistern, normal water processing system respectively, the second water pump is used for taking out the water in the contact tank to the cistern.
When water is taken, the primary water in the contact tank is also added into the reservoir, and when the water in the water storage tank is insufficient, the primary water in the reservoir can be used for flushing the filter plate of the dehydrator in scenes with low water quality requirements. And can also be used for directly pumping raw water from a reservoir to a reclaimed water treatment system for regeneration treatment.
Further, through water pipe and three-way valve intercommunication between contact tank, normal water processing system and the cistern, the water pipe includes first pipe, second pipe and third pipe, be equipped with import, first export and second export on the three-way valve, the import of three-way valve is through first pipe and contact tank intercommunication, and first export is through second pipe and normal water processing system intercommunication, and the second export is through third pipe and cistern intercommunication, the second pipe is located to first water pump, the second pipe is located to the second water pump.
And the communication of the contact tank, the reclaimed water treatment system and the reservoir is completed through the three-way valve and the water pipe.
Further, the system also comprises a control system, and the control system comprises a manual control module and an automatic control module;
the manual control module is used for controlling the work of the first water pump and the second water pump according to the operation of a user;
the automatic control module comprises a first liquid level detection module and a second liquid level detection module;
the first liquid level detection module is used for detecting the liquid level state in the water storage tank;
the second liquid level detection module is used for detecting the liquid level state in the reservoir;
and the automatic control module is used for controlling the operation of the first water pump according to the liquid level state in the water storage tank and controlling the operation of the second water pump according to the liquid level state in the water storage tank.
The control system is used for controlling, and can be used for controlling in a manual mode and an automatic mode, and in a manual mode, a worker controls the water pump to work. In the automatic mode, the control is performed by detecting the liquid level in the water storage tank and the water reservoir, for example, when the liquid level in the water storage tank is detected to be higher than a certain height, the control controls the first water pump to stop working, and when the liquid level in the water storage tank is detected to be lower than the certain height, the control controls the first water pump to start working. Similarly, when the liquid level in the reservoir is detected to be higher than a certain height, the second water pump is controlled to start working, when the liquid level in the reservoir is detected to be lower than a certain height, the second water pump is controlled to stop working, the phenomenon that energy waste or backflow occurs due to the fact that water is continuously pumped inwards after excessive water in the water storage tank or the reservoir is avoided, and water injection into the reclaimed water treatment system is automatically started when the amount of the reclaimed water in the water storage tank is insufficient after the reclaimed water is used is avoided.
Further, the system also comprises a water management system, wherein the water management system comprises a water quality detection module and an early warning prompt module;
the water quality detection module is used for detecting and storing the water quality parameters of reclaimed water in the water storage tank;
the early warning prompt module is preset with reference threshold values of all water quality parameters, and carries out early warning prompt when the detected water quality parameters reach the water quality threshold values.
In the long-term use process of the reclaimed water treatment system, impurities can exist in the sand filter tank, the carbon filter tank and the filter, so that the degradation efficiency of certain indexes is reduced, the effect of reclaimed water treatment cannot meet the use requirement, and the sand filter tank, the carbon filter tank and the filter are required to be washed, overhauled or replaced. Therefore, the water quality detection module detects the water quality parameter of reclaimed water in the water storage tank, when the detected water quality parameter reaches the water quality threshold, the water quality parameter is indicated to reach the critical value of the reclaimed water standard, and an early warning prompt is sent to inform workers to process the sewage, so that the sewage which does not reach the use target is avoided.
Further, the water management system further comprises a demand acquisition module, a supply acquisition module and a water balance module;
the system comprises a demand acquisition module, a demand acquisition module and a control module, wherein the demand acquisition module is used for acquiring the water consumption demand of each water consumption system, and the water consumption demand comprises water consumption time and water consumption;
a supply acquisition module for acquiring the reclaimed water supply capacity of the reclaimed water treatment system;
and the water consumption balancing module is used for scheduling the water consumption time of each water consumption system according to the water consumption requirement of each water consumption system when two or more water consumption systems are used simultaneously.
The water consumption time of each water consumption system is controlled by acquiring the water consumption requirement of each water consumption system and the water supply capacity of the reclaimed water treatment system, if the reclaimed water treatment system can meet the water consumption requirement of each water consumption system, each water consumption system can run simultaneously, the water supply requirement of the reclaimed water treatment system can not meet the water consumption requirement, and the water consumption time of the water consumption system can be adjusted and the peak staggering use can be carried out according to the emergency degree, the importance degree and the like of each user system.
Further, the water management module also comprises a trend change module and a usage statistics module;
the trend change module is used for generating a change trend of the water quality parameter about the medium water consumption according to the stored water quality parameter;
the consumption statistics module is used for determining the water consumption in the next day according to the water consumption requirement of each water consumption system;
the early warning prompt module is used for judging whether the water quality parameter reaches a reference threshold value in the water use process in the next day according to the next-day consumption requirement, the change trend of the water quality parameter and the current water quality parameter, and if so, generating an early warning prompt in the current day.
After finishing the work of a day in a sewage plant, acquiring the water consumption required by each water consumption system in the next day, and combining the currently measured water quality parameter, the next-day water consumption and the change trend of the water quality parameter about the water consumption, so that the water quality parameter can not reach the reference threshold value when the next-day water consumption is judged, if so, generating an early warning prompt, flushing, overhauling or replacing the water treatment system in the current day, and preventing the used water from not reaching the index requirement in the water consumption process and using the sewage which does not reach the standard.
Drawings
FIG. 1 is a logic block diagram of a first embodiment of a water reuse system in a sewage treatment plant of the present application;
FIG. 2 is a logic block diagram of a control system in an embodiment of a water reuse system in a sewage treatment plant of the present application;
FIG. 3 is a logic block diagram of a water reuse system in a sewage treatment plant of the present application.
Detailed Description
The following is a further detailed description of the embodiments:
an example is substantially as shown in figure 1:
the sewage treatment plant reclaimed water recycling system comprises a contact tank, a water storage tank, a reclaimed water treatment system, a first water pump, a second water pump and a control system, wherein the contact tank is respectively communicated with the water storage tank and the reclaimed water treatment system, and the water storage tank is also communicated with the reclaimed water treatment system. Specifically, adopt water pipe and three-way valve to accomplish the intercommunication of contact tank, well water treatment system and cistern in this implementation, the water pipe includes first pipe, second pipe and third pipe, be equipped with import, first export and second export on the three-way valve, the import and the one section flange joint of first pipe of three-way valve, the other end of first pipe is located in the contact tank as the intake, accomplish the intercommunication of three-way valve and contact tank, first water pump passes through soft joint connection on the second pipe, first water pump is the booster pump in this embodiment for with the primary water in the contact tank through first pipe, the second pipe pours into well water treatment system into. The first outlet of the three-way valve is in flange connection with one end of the second pipe, the other end of the second pipe is communicated with the inlet of the reclaimed water treatment system, and the three-way valve is communicated with the reclaimed water treatment system. The three-way valve is in flange connection with one end of the third pipe, and the other end of the third pipe is communicated with an inlet of the reservoir.
The primary water which is subjected to primary treatment in the contact tank is pumped into the reclaimed water treatment system through the first water pump to carry out reclaimed water treatment, the primary water in the contact tank is pumped into the reservoir through the second water pump, and the primary water in the reservoir can be directly used for scenes with low requirements on water quality, such as flushing a filter plate in a dewatering machine room.
The reclaimed water treatment system comprises a sand filtering tank, a carbon filtering tank, a filter and a water storage tank which are sequentially communicated, and after primary water enters the reclaimed water treatment system, the primary water sequentially passes through the sand filtering tank, the carbon filtering tank and the filter, the sand filtering tank is quartz sand in the embodiment, the diameter of the sand filtering tank is 2m, the height of the tank body is 2.4m, the net height is 2.1m, quartz sand is used as a filtering medium, water with higher turbidity is filtered through granular or non-granular quartz sand with certain thickness under certain pressure, and suspended matters, organic matters, colloid particles, microorganisms, chlorine, smell, partial heavy metal ions and the like in the water are effectively trapped and removed. The carbon filter tank is activated carbon filtration, the diameter of the carbon filter tank is 2m, the height of the tank body is 2.4m, the net height is 2.1m, and trace pollutants in the wastewater are removed through activated carbon adsorption in reclaimed water treatment, so that the purpose of deep purification is achieved, and the application range comprises decolorization, deodorization, heavy metal ion removal, organic matter removal, radioactive substance removal and the like.
The control system comprises a manual control module and an automatic control module, wherein the manual control module or the automatic control module is controlled to be started through a gear adjusting switch, namely, the control module of the control system is adjusted to be in a manual mode or an automatic mode, the manual control module is used for controlling the first water pump and the second water pump to work according to user operation, the first water pump and the second water pump are controlled to be started or closed specifically through a manual relay, and the staff controls the start of the manual relay, so that the first water pump and the second water pump are controlled to be operated and closed.
The automatic control module comprises a first liquid level detection module and a second liquid level detection module, wherein the first liquid level detection module is used for detecting the liquid level state in the water storage pipe, the second liquid level detection module is used for detecting the liquid level state in the water storage tank, and the automatic control module is used for controlling the operation of the first water pump according to the liquid level state in the water storage tank and controlling the operation of the second water pump according to the liquid level state in the water storage tank.
Specifically, in this embodiment, the control system includes a first contactor and a second contactor, the contacts above the first/second contacts are connected to a power supply, the lower surface is connected to a first/second water pump, the first liquid level detection module and the second liquid level detection module are all liquid level relays and are respectively arranged in the water storage pipe and the water storage tank, the high probe, the middle probe and the low probe of the liquid level relay are connected in series in the coils of the first/second contactor according to proper height positions, the power supply of the liquid level relay is controlled through a switch, when the liquid level in the water storage pipe/water storage tank does not reach the position of the high probe, the liquid level relay is closed, the first/second contact coils are conducted, the first/second contactors are attracted, the first/second water pump operates, and water is injected into the reclaimed water treatment system/the water storage tank. When the liquid level reaches the position of the high probe, the contact of the liquid level relay is disconnected, and the water pump is powered off at the moment and does not inject water any more.
In this embodiment, the water system includes a sludge concentration machine room water system, a dispensing water system, and a greening water system. The water system for the sludge concentration machine room comprises a rotary drum concentration water pipeline and a plate-frame filter pressing water pipeline. One end of a water pipeline of the rotary drum thickener is communicated with the water storage tank, the other end of the water pipeline is communicated with a water inlet pipeline of the original tap water of the rotary drum thickener, and water is taken into the water storage tank through a water pump, so that back flushing water is provided for flushing the rotary drum thickener. In the operation process of the plate-and-frame filter press, a part of processes need to use the squeezing water and the back flushing of the plate-and-frame filter press, so that one end of a water pipeline of the plate-and-frame filter press is communicated with the water storage tank, and the other end of the water pipeline of the plate-and-frame filter press is communicated with a water inlet pipeline of the original tap water of the plate-and-frame filter press to provide the squeezing water and the back flushing water for the plate-and-frame filter press.
The dispensing water system comprises a dispensing pipeline of a sludge concentration machine room and a dispensing pipeline of a sludge compression machine room, wherein PAM (polyacrylamide) is required to be used as a flocculating agent in the sludge concentration machine room, one ends of the dispensing pipeline of the sludge concentration machine room and the dispensing pipeline of the sludge compression machine room are communicated with a water storage tank, and the other ends of the dispensing pipeline of the sludge concentration machine room and the dispensing pipeline of the sludge compression machine room are respectively communicated with a dosing water inlet pipe of the sludge concentration machine room and the sludge compression machine room. In addition, various medicines such as a conditioning agent, a demulsifier, a defoaming agent, a disinfectant and the like are required to be configured between the medicines and are used for various scenes in a sewage plant, so that the medicine dispensing water system further comprises a medicine adding and dispensing pipeline between the medicine adding and dispensing pipeline, and the water storage pipeline and the water pipe between the medicine dispensing pipeline are communicated through the medicine dispensing pipeline to provide reclaimed water for the medicine dispensing between the medicine adding.
The greening water system comprises a plurality of greening water pipelines distributed in the greening areas of the sewage plant, one end of each greening water pipeline is communicated with the water storage tank, and the other end of each greening water pipeline is respectively arranged in each greening area in the sewage plant to supply reclaimed water for watering the greening areas.
Example two
The difference between the first embodiment and the second embodiment is that the system further comprises a water management system, wherein the water management system comprises a water quality detection module, an early warning prompt module, a demand acquisition module, a supply acquisition module, a water balance module, a trend change module and a usage statistics module.
The water quality detection module is used for detecting the water quality parameters of reclaimed water in the water storage tank. In this example, the Chemical Oxygen Demand (COD) and BOD were measured 5 (the water body is polluted by organic matters), SS (suspended solids), TP (total phosphorus) and TN (total nitrogen), and various water quality parameters in the water quality are detected by various sensors. The early warning prompt module is preset with a reference threshold value of the water quality parameters, carries out early warning prompt when the detected water quality parameters reach the water quality threshold value, specifically stores a value required by the adjacent reclaimed water of each water quality parameter in the system in advance, and carries out early warning prompt when detecting that the value reaches the value in real time, and the prompt mode is that information is sent to a mobile phone and a computer of a worker. The quality of reclaimed water in the water storage tank is detected by the water quality detection module, and the reclaimed water is atIn the long-term use process of the management system, impurities exist in the sand filter tank, the carbon filter tank and the filter, so that the degradation efficiency of certain water quality parameters is reduced, the reclaimed water index in the water storage tank is detected, and the reference threshold value of each parameter is set, so that the reference threshold value in the embodiment is 105% of the water quality parameters in the reclaimed water use standard. When the detected water quality parameter approaches the reference threshold value, namely reaches the relevant index, the water quality in the current water storage tank is not required to meet the requirement, and the sand rate tank, the carbon filter tank and the filter are required to be washed, overhauled or replaced, so that early warning prompt is carried out when the water quality parameter reaches the water quality threshold value.
The demand acquisition module acquires the water demand of each water system, and the water demand refers to the time of single water use and the required water consumption of each water system. The dewatering machine in the sludge concentration machine room washes the filter plates once every day, two filter plates need to be washed, 16 cubic meters are shared, and 45 cubic meters of water are used for dispensing medicines of the dewatering machine and the concentration machine room once every day. In the pharmacy, the volume of each dispensing pool is 6 cubic meters, the two dispensing pools are required to dispense medicines, the total dosage is 12 cubic meters, the dosage is twice daily, the lawn is watered in a greening manner, the average water consumption per square meter is 2L, and the water consumption per month is irrigated for 2 times. Assuming that the rate of the primary water treatment system to treat the primary water into water is 15 cubic meters per hour, the volume of the water storage tank is 20 cubic meters. After obtaining the water demand of each water system and the water capacity of the reclaimed water system, judging whether the water supply capacity can meet the water supply demand when two or two water systems are simultaneously operated, and enabling the two water systems to be simultaneously operated when the water supply demand can be met.
The trend change module draws a curve according to the stored water quality parameters along with the change of the water consumption system, the water quality parameters are taken as a vertical axis, the medium water consumption is taken as a horizontal axis, the change trend of the water quality parameters about the medium water consumption is obtained, after a sewage plant finishes one day of work, the water consumption system which needs to work next day and the water consumption required by each water consumption system are obtained through the consumption statistics module, and therefore the total water consumption required next day is obtained, for example, according to the requirements, the water consumption in next day is 16+46+12=72 (cubic meters), and if greening needs to be carried out next day, 60 cubic meters required by greening are added. By combining the current measured water quality parameter, the next daily water consumption and the change trend of the water quality parameter about the water quality, the water quality parameter can not reach the reference threshold when the next daily water consumption is judged, namely, whether the water quality parameter reaches the reference threshold after 132 cubic meters of water is used is judged according to the current daily water quality parameter and the change trend of the water quality parameter, if so, an early warning prompt is generated, the water treatment system is flushed, overhauled or replaced in the current day, the condition that the used water does not reach the index requirement in the water use process is prevented, and the sewage which does not reach the standard is used.
Example III
The difference between the present embodiment and the second embodiment is that in the present embodiment, the water management system further includes a greening management system
The greening management system comprises a greening dosage module, a allowance acquisition module and a region selection module;
the greening using amount module is used for obtaining the single water consumption of each greening pipeline;
the surplus acquisition module is used for acquiring the residual water quantity in the current day;
the area selection module is used for selecting a current day greening area according to the single water consumption of each greening pipeline and the current day water residual quantity;
the area marking module is used for marking the used greening area in the current round.
Specifically, the areas of different greening areas in the sewage plant are different, the water consumption needed is different, and the approximate consumption of each time of water consumption of each greening area can be determined by determining the single water consumption of each greening pipeline. Meanwhile, watering in the greening areas is not needed every day, so that after water consumption of each device in a sewage plant is completed every day, the residual water quantity is obtained, and according to the residual water quantity and the single water consumption of each greening pipeline, the residual water quantity in the water can meet the watering water consumption of one or more greening areas, so that the current greening area is determined to be watered, and the current-round used area is marked after watering. Therefore, the greening area is watered in batches according to the quantity of the existing reclaimed water, and when the quantity of water used for greening is insufficient, tap water is not needed to be used for watering, so that the water consumption of the tap water is reduced.
The foregoing is merely exemplary of the present application, and specific structures and features well known in the art will not be described in detail herein, so that those skilled in the art will be aware of all the prior art to which the present application pertains, and will be able to ascertain the general knowledge of the technical field in the application or prior art, and will not be able to ascertain the general knowledge of the technical field in the prior art, without using the prior art, to practice the present application, with the aid of the present application, to ascertain the general knowledge of the same general knowledge of the technical field in general purpose. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. Sewage treatment plant reclaimed water recycling system, its characterized in that: the system comprises a contact tank, a reclaimed water treatment system and a first water pump, wherein the contact tank is communicated with the reclaimed water treatment system, the first water pump is used for pumping primary water in the contact tank to the reclaimed water treatment system, the reclaimed water treatment system comprises a sand filter tank, a carbon filter tank, a filter and a water storage tank which are sequentially communicated, the water storage tank is communicated with a water system in a sewage plant, and the water system comprises a sludge concentration machine room water system, a dispensing water system and a greening water system;
the system also comprises a water management system, wherein the water management system comprises a water quality detection module and an early warning prompt module;
the water quality detection module is used for detecting and storing the water quality parameters of reclaimed water in the water storage tank;
the early warning prompt module is used for presetting a reference threshold value of each water quality parameter, and carrying out early warning prompt when the detected water quality parameter reaches the water quality threshold value;
the water management system further comprises a demand acquisition module, a supply acquisition module and a water balance module;
the system comprises a demand acquisition module, a demand acquisition module and a control module, wherein the demand acquisition module is used for acquiring the water consumption demand of each water consumption system, and the water consumption demand comprises water consumption time and water consumption;
a supply acquisition module for acquiring the reclaimed water supply capacity of the reclaimed water treatment system;
the water consumption balancing module is used for arranging the water consumption time of each water consumption system according to the water consumption requirement of each water consumption system when two or more water consumption systems are used simultaneously;
the water management system also comprises a trend change module and a usage statistics module;
the trend change module is used for generating a change trend of the water quality parameter about the medium water consumption according to the stored water quality parameter;
the consumption statistics module is used for determining the water consumption in the next day according to the water consumption requirement of each water consumption system;
the early warning prompt module is used for judging whether the water quality parameter reaches a reference threshold value in the water use process in the next day according to the next-day consumption requirement, the change trend of the water quality parameter and the current water quality parameter, and if so, generating an early warning prompt in the current day.
2. The water reuse system according to claim 1, characterized in that: the water system for the sludge concentration machine room comprises a water pipeline for the rotary drum concentrator and a water pipeline for the plate-and-frame filter press, wherein the water pipeline for the rotary drum concentrator is used for providing back flushing water for the rotary drum concentrator; the water pipeline for the plate-and-frame filter press is used for providing the press water and the back flushing water for the plate-and-frame filter press.
3. The water reuse system according to claim 1, characterized in that: the dispensing water system comprises a dispensing pipeline of the sludge concentration machine room, a dispensing pipeline of the sludge dewatering machine room and a dispensing pipeline of the dispensing room, and is used for providing dispensing water for the concentration machine room, dispensing water for the sludge dewatering machine room and dispensing water for the dispensing room.
4. The water reuse system according to claim 1, characterized in that: the greening water system comprises a plurality of greening water pipelines distributed in a greening area of the sewage plant and used for providing greening water for the greening area.
5. The water reuse system according to any of the claims 1-4, characterized in that: the water treatment device comprises a water tank, a water treatment system, a water storage tank, a water pump and a water pump.
6. The water reuse system according to claim 5, wherein: the water pipe comprises a first pipe, a second pipe and a third pipe, an inlet, a first outlet and a second outlet are formed in the three-way valve, the inlet of the three-way valve is communicated with the contact tank through the first pipe, the first outlet is communicated with the reclaimed water treatment system through the second pipe, the second outlet is communicated with the reservoir through the third pipe, the first water pump is arranged on the second pipe, and the second water pump is arranged on the second pipe.
7. The water reuse system according to claim 6, wherein: the system also comprises a control system and a control system, wherein the control system comprises a manual control module and an automatic control module;
the manual control module is used for controlling the work of the first water pump and the second water pump according to the operation of a user;
the automatic control module comprises a first liquid level detection module and a second liquid level detection module;
the first liquid level detection module is used for detecting the liquid level state in the water storage tank;
the second liquid level detection module is used for detecting the liquid level state in the reservoir;
and the automatic control module is used for controlling the operation of the first water pump according to the liquid level state in the water storage tank and controlling the operation of the second water pump according to the liquid level state in the water storage tank.
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| CN102070280A (en) * | 2010-11-26 | 2011-05-25 | 浙江大学 | Advanced treatment and recycling device and method of papermaking wastewater |
| CA2744508A1 (en) * | 2011-06-23 | 2012-12-23 | The Royal Institution For The Advancement Of Learning/Mcgill University | Use of alpha-2-macroglobulin for determining osteonecrosis disease status and for screening therapeutic agents for treating osteonecrosis |
| CN206255917U (en) * | 2016-12-16 | 2017-06-16 | 东莞市秦泰盛实业有限公司 | A kind of 8 tons of intermediate water reuse systems per hour |
| CN109144825A (en) * | 2018-07-27 | 2019-01-04 | 阿里巴巴集团控股有限公司 | A kind of alert data monitoring method, device and equipment |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070280A (en) * | 2010-11-26 | 2011-05-25 | 浙江大学 | Advanced treatment and recycling device and method of papermaking wastewater |
| CA2744508A1 (en) * | 2011-06-23 | 2012-12-23 | The Royal Institution For The Advancement Of Learning/Mcgill University | Use of alpha-2-macroglobulin for determining osteonecrosis disease status and for screening therapeutic agents for treating osteonecrosis |
| CN206255917U (en) * | 2016-12-16 | 2017-06-16 | 东莞市秦泰盛实业有限公司 | A kind of 8 tons of intermediate water reuse systems per hour |
| CN109144825A (en) * | 2018-07-27 | 2019-01-04 | 阿里巴巴集团控股有限公司 | A kind of alert data monitoring method, device and equipment |
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