CN212894344U - Wastewater collecting and recycling system - Google Patents
Wastewater collecting and recycling system Download PDFInfo
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- CN212894344U CN212894344U CN202021254583.8U CN202021254583U CN212894344U CN 212894344 U CN212894344 U CN 212894344U CN 202021254583 U CN202021254583 U CN 202021254583U CN 212894344 U CN212894344 U CN 212894344U
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Abstract
A wastewater collecting and recycling system comprises a wastewater adjusting tank, a sludge concentration tank and a recovery tank, wherein a recycling water pipe is arranged on the recovery tank and is connected with a submersible pump arranged in the recovery tank; a wastewater main pipe is arranged on the wastewater regulating tank, a submersible stirrer is installed in the wastewater regulating tank, a lifting pump is arranged between the wastewater regulating tank and the sludge concentration tank, the production wastewater generated by a water plant enters the wastewater regulating tank through the wastewater main pipe, and the wastewater in the wastewater regulating tank is lifted to the sludge concentration tank through the lifting pump; a central transmission mud scraper is arranged in the sludge concentration tank, and an overflow weir communicated with the recovery tank is arranged on the sludge concentration tank. Adopt the system, with the waste water concentration sediment back that the water plant produced, obtain the supernatant for afforestation watering and artifical lake moisturizing usefulness in the factory, surplus water converges into former water pipeline and handles the retrieval and utilization, not only can improve water plant operation managerial ability, still the water economy resource reduces the pollution of waste water discharge to the environment.
Description
Technical Field
The utility model relates to a water treatment system, in particular to a wastewater collection and recycling system.
Background
The production wastewater produced by the water plant mainly comprises three parts, namely high-efficiency clarification tank sludge discharge water, flap filter backwashing water and activated carbon tank backwashing water, and accounts for about 3% of the water yield of the water plant. In a water treatment system of a water plant, a high-efficiency clarification tank is designed to discharge sludge for 4 times every day in a sludge discharge period of 6 hours, and the sludge discharge amount of each time is about 236m3Perh, the daily mud discharge amount is about 944m3(ii) a The reverse washing period of the flap filter is 24 hours, the water is drained 6 times every day, and the water drainage quantity is about 264m each time3About 1584m of water is discharged per day3(ii) a The backwashing period of the activated carbon tank is 24 hours, water is drained 7 times every day, and the water drainage quantity of each time is about 73m3The daily water discharge is about 511m3. So that the total amount of wastewater discharged by the plant per day is about 3000m3. If the water quantity of the water plant is fully utilized, the operation management capacity of the water plant can be improved, water resources can be saved, and the pollution of waste water discharge to the environment is reduced. The prior art does not have a device for recycling the wastewater produced in the production process of a water plant.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of prior art, provide a reasonable in design, the collection recycling system of the waste water that produces in the ability make full use of water factory production process.
The utility model aims to solve the technical problem that the utility model is realized by the following technical proposal, the utility model relates to a wastewater collection and reuse system, which is characterized in that the system comprises a wastewater adjusting tank, a sludge thickening tank and a recovery tank, wherein the recovery tank is provided with a reuse water pipe connected with a watering pipe network or a raw water pipe, and the reuse water pipe is connected with a submersible pump arranged in the recovery tank;
the wastewater adjusting tank is provided with a wastewater header pipe for collecting wastewater generated by a water plant, the wastewater adjusting tank is internally provided with a submersible stirrer for stirring muddy water in the tank and preventing sludge from precipitating and solidifying, a lifting pump is arranged between the wastewater adjusting tank and the sludge concentration tank, the production wastewater generated by the water plant enters the wastewater adjusting tank through the wastewater header pipe, and the wastewater in the wastewater adjusting tank is lifted to the sludge concentration tank through the lifting pump;
the sludge concentration tank is internally provided with a central transmission sludge scraper, the sludge concentration tank is provided with an overflow weir communicated with the recovery tank, and supernatant in the sludge concentration tank flows into the recovery tank through the overflow weir.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the waste water equalizing basin is secret pond in the underground, and the bottom of the pool is equipped with the sump pit, the elevator pump dress is in the sump pit.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the recovery pond bottom is the concave surface, and bottom of the pool central point puts and is equipped with long-pending mud pit, is equipped with the dredge pump that is used for mud discharging and washing water tank on the recovery pond.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, sludge thickening tank is uncovered pond, and the bottom of the pool is equipped with long-pending mud pit.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, and this system is still including the water quality monitoring device who is used for monitoring sludge concentration tank supernatant quality of water condition, water quality monitoring device includes from inhaling between sampling pump and water quality monitoring instrument, and from inhaling the sampling pump and passing through the crane span structure dress on sludge concentration tank, from inhaling the sampling pump and passing through pipeline and water quality monitoring instrument and be connected within a definite time, is equipped with turbidity meter, oxygen consumption, PH meter and ammonia nitrogen on-line monitoring instrument in the water quality monitoring instrument room.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme be provided with the three-way pipe on the retrieval and utilization water pipe, a mouth of pipe of three-way pipe passes through the pipeline and is connected with former water line, and another mouth of pipe of three-way pipe passes through the pipeline and is connected with the watering pipe network, is equipped with the motorised valve on the three-way pipe mouth of pipe that meets with watering pipe network or former water line, is connected between motorised valve and water quality monitoring instrument.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme be equipped with the overflow pipeline that links to each other with artifical lake on the recovery pond, the overflow pipeline comprises overflow pipeline and overflow pump.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme, and this system still includes between the sludge storage tank and the sludge dewatering who is linked together with the sludge storage tank, and the sludge storage tank passes through the sludge conduit and is connected with the sludge thickening pond, and the sewer line links to each other with the waste water house steward or the municipal sewer pipe network of waste water equalizing basin between the sludge dewatering.
The utility model discloses the technical problem that will solve can also be realized through following technical scheme be equipped with the pipe network interface that links to each other with municipal sewage pipe network on the waste water equalizing basin.
Compared with the prior art, the utility model discloses an establish waste water equalizing basin, sludge thickening pond and recovery pond, with the concentrated back of deposiing of waste water that the water factory produced, obtain the supernatant, mainly used afforestation watering and artifical lake moisturizing usefulness in the factory, the surplus water is through the pipeline converge into former water pipeline processing retrieval and utilization. Adopt system make full use of the waste water that produces in the water plant production process, not only can improve water plant operation managerial ability, can also the water economy resource, reduce the pollution of waste water discharge to the environment.
Drawings
FIG. 1 is a system block diagram of the wastewater collection and recycling system of the present invention.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings so as to facilitate the further understanding of the present invention by those skilled in the art, and do not constitute a limitation to the right thereof.
Referring to fig. 1, a wastewater collection and recycling system comprises a wastewater adjusting tank, a sludge concentration tank and a recovery tank, wherein the recovery tank is provided with a recycling water pipe connected with a watering pipe network or a raw water pipe, and the recycling water pipe is connected with a submersible pump arranged in the recovery tank;
a wastewater main pipe for collecting wastewater generated by a water plant is arranged on the wastewater adjusting tank, a submersible stirrer for stirring muddy water in the tank and preventing sludge from precipitating and solidifying is installed in the wastewater adjusting tank, a lifting pump is arranged between the wastewater adjusting tank and the sludge concentration tank, the production wastewater generated by the water plant enters the wastewater adjusting tank through the wastewater main pipe, and the wastewater in the wastewater adjusting tank is lifted to the sludge concentration tank through the lifting pump;
the sludge concentration tank is internally provided with a central transmission sludge scraper, the sludge concentration tank is provided with an overflow weir communicated with the recovery tank, and supernatant in the sludge concentration tank flows into the recovery tank through the overflow weir.
Waste water equalizing basin is concrete structure 20 meters long, wide 10 meters, dark 4.5 meters's secret dark pond, installs 3 dive mixers of 2.2KW in the pond for muddy water stirring in the pond prevents that mud from deposiing the solidification, simultaneously, is equipped with the sump pit at the bottom of the pool, has installed 2 7.5KW, 10 meters of lift, flow 150m in the sump pit3And the two pumps adopt a working mode of one use and one standby and are used for lifting the wastewater in the wastewater adjusting tank to the sludge concentration tank.
The bottom of the recovery tank is a concave surface, a sludge accumulation pit is arranged at the center of the bottom of the recovery tank, and a sewage pump for discharging sludge and cleaning the water tank is arranged on the recovery tank.
The sludge concentration tank is a concrete structure open tank with the diameter of 20 meters and the depth of 4 meters, a central transmission sludge scraper with the diameter of 1.5KW of 20 meters is arranged in the sludge concentration tank, waste water in the waste water adjusting tank is lifted to the concentration tank through a lifting pump, a sludge accumulation pit is arranged at the bottom of the tank, sludge which is precipitated is gathered into the sludge accumulation pit under the help of the central transmission sludge scraper, and supernatant liquid after precipitation flows into a sewer through an overflow weir.
The system also comprises a water quality monitoring device for monitoring the supernatant water quality condition of the sludge concentration tank, wherein the water quality monitoring device comprises a self-suction sampling pump and a water quality monitoring instrument, the self-suction sampling pump is mounted on the sludge concentration tank through a bridge frame and is connected with the water quality monitoring instrument through a pipeline, and a turbidity meter, an oxygen consumption amount, a PH meter and an ammonia nitrogen online monitoring instrument are arranged in the water quality monitoring instrument.
The water reuse pipe is provided with a three-way pipe, one pipe orifice of the three-way pipe is connected with a raw water pipeline through a pipeline, the other pipe orifice of the three-way pipe is connected with an irrigation pipe network through a pipeline, an electric valve is arranged on the pipe orifice of the three-way pipe connected with the irrigation pipe network or the raw water pipeline, the electric valve is connected with a water quality monitoring instrument through a control system, and the control system adopts any system structure known in the prior art for realizing automatic control.
The recovery pond is equipped with the overflow pipeline that links to each other with artifical lake, and the overflow pipeline comprises overflow pipeline and overflow pump, and when quality of water in the recovery pond can not satisfy the production retrieval and utilization and afforestation watering water, when needing the certain time to precipitate or self-purification, can carry the supernatant to factory artificial lake through the overflow pipeline for the water supply of factory artificial lake.
The system also comprises a sludge storage tank and a sludge dewatering chamber communicated with the sludge storage tank, wherein the sludge storage tank is connected with a sludge concentration tank through a sludge pipeline, the sludge dewatering chamber is connected with a wastewater main pipe or a municipal sewage pipe network of a wastewater adjusting tank through a sewage pipeline, the sludge pipeline consists of a sludge pipeline and a sludge pump arranged on the sludge pipeline, the sludge pump can be arranged in a sludge accumulation pit at the bottom of the sludge storage tank, and the sewage pipeline consists of a sewage pipeline and a sewage pump arranged on the sewage pipeline.
When the system works, a water plant conveys raw water to the water plant through a water taking pump station, a high-efficiency clarification tank, a panel turnover filter tank, an ozone activated carbon advanced treatment process and the traditional chlorine disinfection are adopted to obtain finished water, the finished water is conveyed to a water pipe network through a water conveying pump, the wastewater flows into a wastewater adjusting tank through a wastewater main pipe, after the water storage amount in the wastewater adjusting tank is adjusted, the wastewater enters a sludge concentration tank through a lifting pump, the continuous water feeding and continuous water discharging of the sludge concentration tank are realized, and after the sludge water is concentrated and precipitated, the supernatant overflows and is discharged into a sewer; the sludge is treated by a sludge storage pool and a sludge dewatering machine room, the sludge is transported out after being dewatered, and the wastewater is discharged into a municipal sewage pipe network.
The specific working process of the wastewater collection and recycling system is as follows:
(1) a recovery tank with a concrete structure is manufactured in the empty position at the periphery of the sludge concentration tank, the diameter of the recovery tank is 3 meters, the depth of the recovery tank is 2.2 meters, the effective volume is about 15 cubic meters, and the recovery tank is mainly used for collecting supernatant of the sludge concentration tank. The bottom of the recovery tank is a concave surface, a sludge accumulation pit is arranged at the center of the recovery tank, and a sewage pump is arranged for discharging sludge and cleaning and draining water.
(2) Inputting daily sludge water of the high-efficiency clarification tank, backwashing wastewater of the flap filter and backwashing water of the activated carbon filter into a wastewater conditionerAnd after the sludge is saved, the sludge is conveyed to a sludge concentration tank through a lifting pump, and water feeding is stopped when the sludge concentration tank reaches an overflow liquid level (at the moment, the liquid level is 65cm away from the top of the concentration tank). After standing for 10-20 minutes, lowering a lift pump at the wastewater adjusting tank to low-frequency small-flow water inlet so as to avoid disturbing the supernatant of the sludge concentration tank, and overflowing the supernatant to a recovery tank along with the rise of the water level; two submersible pumps are arranged in the recovery tank, and the flow of the water pumps is 45m3And the lift is 16 meters, and the operation mode of one use and one standby is adopted for conveying the supernatant to a required point position.
(3) A self-suction sampling pump is installed on a central bridge frame of the sludge concentration tank, and a supernatant water sample is conveyed to a water quality monitoring instrument room through a DN20mmPPR pipeline. The instrument room is internally provided with a turbidity meter, an oxygen consumption meter, a PH meter, an ammonia nitrogen online monitoring instrument and the like, the quality condition of supernatant of the sludge concentration tank is monitored timely, and the purpose of the reuse water is adjusted according to different water quality conditions and water requirements. When the supernatant of the sludge concentration tank is used for greening irrigation, the main water quality index should meet the urban sewage recycling green land irrigation water quality (GB/T25499-.
(4) A three-way pipe is arranged on a DN150mmPE pipe of the reuse water, and DN150mmPE is paved to the reuse point position according to different water qualities and different purposes. One path of the reuse water is conveyed to the raw water pipeline through a pipeline, and the other path of the reuse water is conveyed to the irrigation pipe network. And electric valves are respectively arranged on two sides of the three-way pipe, namely the heads in different conveying directions, and are used for switching the two pipelines at any time according to requirements. Namely, the production, the reuse and the greening irrigation are realized according to the water quality condition of the sludge concentration tank. On the one hand, the high-quality water recycling can be ensured, the influence on the water quality of the high-purity pond is avoided, on the other hand, the problem of water taking in factory greening irrigation is solved, and the water using cost is reduced.
(5) When in recycling, the water replenishing time of the concentration tank is ensured to be less than the running time of the recovery pump. The liquid level of the recycling pump needs to be adjusted according to actual conditions to avoid bottom mud disturbance. In addition, whether the recycled water quantity can influence the coagulating sedimentation effect of the raw water needs to be adjusted and observed on site.
(6) And (3) regularly adopting the supernatant of the sludge concentration tank to detect the water quality condition, wherein the detection frequency and the detection items are the same as those of raw water detection every day, and the supernatant meets the III-class water quality standard of surface water (GB 3838 and 2002) and can be returned to the high-efficiency clarification tank for recycling.
(7) The quality of the supernatant of the sludge concentration tank is monitored for a period of time, and when the supernatant is found to be incapable of meeting the requirements of production recycling and greening irrigation water in the period of time and needs a certain time for precipitation or self-purification, the supernatant can be conveyed to the factory artificial lake through the overflow pipeline for water replenishing of the factory artificial lake. When water is not needed to be supplemented, the supernatant is purified by utilizing the retention time of the artificial lake and the water purification effect of aquatic plants in the lake, and then the supernatant overflows to a standby water source for storage.
Claims (10)
1. The utility model provides a recycling system is collected to waste water which characterized in that: the system comprises a wastewater adjusting tank, a sludge concentration tank and a recovery tank, wherein the recovery tank is provided with a reuse water pipe connected with a watering pipe network or a raw water pipeline, and the reuse water pipe is connected with a submersible pump arranged in the recovery tank;
a waste water main pipe for collecting waste water generated by a water plant is arranged on the waste water adjusting tank, a submersible stirrer for stirring muddy water in the tank and preventing sludge from precipitating and solidifying is arranged in the waste water adjusting tank, a lifting pump is arranged between the waste water adjusting tank and the sludge concentration tank, the waste water generated by the water plant enters the waste water adjusting tank through the waste water main pipe, and the waste water in the waste water adjusting tank is lifted to the sludge concentration tank through the lifting pump;
the sludge concentration tank is internally provided with a central transmission sludge scraper, the sludge concentration tank is provided with an overflow weir communicated with the recovery tank, and supernatant in the sludge concentration tank flows into the recovery tank through the overflow weir.
2. The wastewater collection and reuse system according to claim 1, wherein: the waste water equalizing basin is an underground hidden basin, a water collecting pit is arranged at the bottom of the waste water equalizing basin, and the lifting pump is arranged in the water collecting pit.
3. The wastewater collection and reuse system according to claim 1, wherein: the bottom of the recovery tank is a concave surface, a sludge accumulation pit is arranged at the center of the bottom of the recovery tank, and a sewage pump for discharging sludge and cleaning the water tank is arranged on the recovery tank.
4. The wastewater collection and reuse system according to claim 1, wherein: the sludge concentration tank is an open tank, and a sludge accumulation pit is arranged at the bottom of the tank.
5. The wastewater collection and reuse system according to claim 1, wherein: the system also comprises a water quality monitoring device for monitoring the water quality condition of the supernatant in the sludge concentration tank.
6. The wastewater collection and reuse system according to claim 5, wherein: the water quality monitoring device comprises a self-suction sampling pump and a water quality monitoring instrument, the self-suction sampling pump is mounted on a sludge concentration tank through a bridge frame, the self-suction sampling pump is connected with the water quality monitoring instrument through a pipeline, and a turbidity meter, an oxygen consumption amount, a PH meter and an ammonia nitrogen online monitoring instrument are mounted between the water quality monitoring instruments.
7. The wastewater collection and recycling system according to claim 6, wherein: the water recycling pipe is provided with a three-way pipe, one pipe opening of the three-way pipe is connected with a raw water pipeline through a pipeline, the other pipe opening of the three-way pipe is connected with an irrigation pipe network through a pipeline, an electric valve is arranged on the pipe opening of the three-way pipe connected with the irrigation pipe network or the raw water pipeline, and the electric valve is connected with a water quality monitoring instrument.
8. The wastewater collection and reuse system according to claim 1, wherein: and an overflow pipeline connected with the artificial lake is arranged on the recovery tank, and the overflow pipeline consists of an overflow pipeline and an overflow pump.
9. The wastewater collection and reuse system according to claim 1, wherein: the system also comprises a sludge storage tank and a sludge dewatering room communicated with the sludge storage tank, wherein the sludge storage tank is connected with a sludge concentration tank through a sludge pipeline, and the sludge dewatering room is connected with a wastewater main pipe or a municipal sewage pipe network of the wastewater regulating tank through a sewage pipeline.
10. The wastewater collection and reuse system according to claim 1, wherein: and a pipe network interface connected with a municipal sewage pipe network is arranged on the wastewater regulating tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254583.8U CN212894344U (en) | 2020-07-01 | 2020-07-01 | Wastewater collecting and recycling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021254583.8U CN212894344U (en) | 2020-07-01 | 2020-07-01 | Wastewater collecting and recycling system |
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| Publication Number | Publication Date |
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| CN212894344U true CN212894344U (en) | 2021-04-06 |
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| CN202021254583.8U Active CN212894344U (en) | 2020-07-01 | 2020-07-01 | Wastewater collecting and recycling system |
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