CN116621384B - Sewage treatment system for building construction - Google Patents
Sewage treatment system for building construction Download PDFInfo
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- CN116621384B CN116621384B CN202310753561.8A CN202310753561A CN116621384B CN 116621384 B CN116621384 B CN 116621384B CN 202310753561 A CN202310753561 A CN 202310753561A CN 116621384 B CN116621384 B CN 116621384B
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- 238000011282 treatment Methods 0.000 title claims abstract description 114
- 239000010865 sewage Substances 0.000 title claims abstract description 94
- 238000009435 building construction Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 149
- 238000010276 construction Methods 0.000 claims abstract description 47
- 238000004065 wastewater treatment Methods 0.000 claims abstract description 25
- 238000000746 purification Methods 0.000 claims abstract description 22
- 239000010840 domestic wastewater Substances 0.000 claims abstract description 19
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 12
- 238000005273 aeration Methods 0.000 claims description 83
- 238000001914 filtration Methods 0.000 claims description 45
- 238000006243 chemical reaction Methods 0.000 claims description 40
- 239000002351 wastewater Substances 0.000 claims description 30
- 238000004062 sedimentation Methods 0.000 claims description 27
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- 239000010802 sludge Substances 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 19
- 239000003814 drug Substances 0.000 claims description 17
- 229940079593 drug Drugs 0.000 claims description 17
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- 230000016615 flocculation Effects 0.000 claims description 17
- 239000003621 irrigation water Substances 0.000 claims description 16
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/303—Nitrification and denitrification treatment characterised by the nitrification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Biological Wastes In General (AREA)
Abstract
The invention relates to a sewage treatment system for building construction, which comprises a box body, a rainwater treatment system, a construction and domestic wastewater treatment system, a pH adjusting device, an ultraviolet disinfection device, a water storage tank and a control system, wherein the rainwater treatment system, the construction and domestic wastewater treatment system, the pH adjusting device, the ultraviolet disinfection device, the water storage tank and the control system are arranged in the box body; the rainwater treatment system of the sewage treatment system automatically recognizes and controls the opening and closing of the rainwater treatment system according to the collection amount of rainwater, so that the operation difficulty is reduced; the sewage treatment system has small occupied area, can move according to the needs, realizes the deep cleaning treatment of sewage, can be circularly used for a construction site water supply system after purification, and realizes the zero discharge of sewage. The main body of the sewage treatment system is made of shock-resistant sheet polypropylene, the box body is made of metal, the service life is longer, and the energy consumption for assembly and operation is lower.
Description
Technical Field
The invention relates to the field of building engineering, in particular to a sewage treatment system for building construction.
Background
Various sewage can be produced in the building construction process, especially in the house construction project, and mainly includes rainwater, construction sewage and domestic sewage. The concentration of the conventional pollutants in the construction wastewater is about COD-800 mg/L, SS-150 mg/L, NH 3-N-30 mg/L and TP-3 mg/L; most construction sites can be discharged after being treated according to the comprehensive wastewater discharge standard in China, so that on one hand, the waste of water resources is caused, and on the other hand, the construction cost is increased.
Modern sewage treatment technology is divided into primary, secondary and tertiary treatment technologies according to treatment degree. The first stage sewage treatment uses physical methods, such as screening, precipitation, etc., to remove insoluble suspended solids and floating materials from the sewage. The secondary sewage treatment mainly adopts a biological treatment method, namely, a process of converting substances through the metabolism of microorganisms, so that various complex organic matters in the sewage are oxidized and degraded into simple substances. Biological treatment has certain requirements on sewage quality, water temperature, dissolved oxygen in water, pH value and the like. The sewage three-stage treatment is to remove insoluble organic matters, phosphorus, nitrogen and other nutritive substances in the sewage by using physical and chemical methods such as coagulation, filtration, ion exchange, reverse osmosis and the like on the basis of the first-stage and second-stage treatment. The composition of pollutants in sewage is very complex, and the combination of the methods is often required to meet the treatment requirements. The primary treatment of sewage is pretreatment, the secondary treatment is main body, and the treated sewage can generally reach the discharge standard. The three-stage treatment is advanced treatment, the water quality of the effluent is better, and even the effluent can reach the standard of drinking water quality, but the treatment cost is high, and the application is less except for some countries and regions with extremely water shortage.
The existing sewage treatment equipment for construction sites has the disadvantages of scattered treatment units, large occupied area, different maintenance modes of different units and inconvenience for overall control.
Disclosure of Invention
The invention provides a sewage treatment system for building construction, aiming at the defects of the existing sewage treatment equipment for building construction sites. The rainwater treatment system of the sewage treatment system automatically recognizes and controls the opening and closing of the rainwater treatment system according to the collection amount of rainwater, and is simple to operate; meanwhile, the sewage treatment system disclosed by the invention has small occupied area, can be moved according to the needs, further realizes deep sewage cleaning treatment, can be used for a construction site water supply system in a circulating manner, and realizes zero sewage discharge.
The invention provides a sewage treatment system for building construction, which comprises a box body, a rainwater treatment system, a construction and domestic wastewater treatment system, a pH adjusting device, an ultraviolet disinfection device, a water storage tank and a control system, wherein the rainwater treatment system, the construction and domestic wastewater treatment system, the pH adjusting device, the ultraviolet disinfection device and the water storage tank are arranged in the box body; the rainwater treatment system and the water outlet of the construction and domestic wastewater treatment system are communicated with the pH adjusting device, and two ends of the ultraviolet disinfection device are respectively communicated with the pH adjusting device and the water storage tank.
According to the invention, the ultraviolet disinfection device is arranged to disinfect purified water output by the water outlet pipe, so that pollution and purification steps caused by the use of chemical disinfectants are reduced, and the system cost and the occupied area are reduced. The invention can be used for directly using the purified water on the construction site after the sewage is deeply purified by the construction and domestic wastewater treatment system.
The main body of the sewage treatment system is made of shock-resistant sheet polypropylene, the box body is made of metal, the service life of the equipment is longer, and the energy consumption for assembly and operation is lower.
Further, the rainwater treatment system in the sewage treatment system comprises a water storage tank, a filtering sedimentation tank and a sludge impurity recovery tank; a water inlet pipe and a water level monitor I are arranged on one side of the water storage tank, and the bottom of the other side of the water storage tank is connected with the filtering sedimentation tank through a water outlet pipe; and the water outlet pipe is provided with an electric valve and a water flow monitor.
The rainwater treatment system, the first water level monitor, the electric valve and the water flow monitor are used for controlling the rainwater treatment system. The water level in the water storage tank is monitored through the first water level monitor, and when the water storage amount is collected to a certain amount, the control system can control the electric valve to automatically start the rainwater purification treatment system; when the water storage amount is reduced to a certain amount, the control system can control the electric valve to automatically close the rainwater purification treatment system. When the rainwater treatment system is in an operating state, the water flow monitor displays that the water flow rates are smaller than 0.8m/s, and then the water flow monitor gives an alarm to the control system to prompt the replacement of the filter plate or the cleaning of the filter plate.
In addition, the upper side of the filter plate can be provided with a sludge scraping blade, sludge is collected into a sludge collecting box, and the sludge collecting box is cleaned at regular time.
Further, a filter plate is arranged in the filtering and precipitating box in the sewage treatment system, the filter plate is clamped with the filtering and precipitating box in a clamping groove mode, the included angle between the filter plate and the horizontal plane is 20-30 degrees, and a filter plate extraction channel is arranged on the side wall of the filtering and precipitating box and positioned at the upper part of a water outlet pipe of the filtering and precipitating box; the top of the side wall in the filtering and precipitating box is provided with a mountain-shaped water inlet guide structure which is tightly fixed on the side wall of the filtering and precipitating box; the filter sedimentation tank is internally provided with a sedimentation baffle plate positioned below the filter plate, and the sludge impurity recovery tank is connected with the filter sedimentation tank through a delivery pipe.
Further, in the sewage treatment system of the present invention, the flow guiding structure includes a first end connected to the sidewall of the filtering and precipitating tank and a second end near the filtering plate, where the first end is higher than the second end.
Further, in the sewage treatment system, a sealing door plate is arranged at the extraction channel of the filter plate, one end of the sealing door plate is hinged with the outer wall of the filtering and precipitating box, and the other end of the sealing door plate is connected with the outer wall of the filtering and precipitating box in a locking manner; a filter plate storage box is arranged on the outer wall of the filter settling box and below the filter plate extraction channel; the filter plate comprises a first filter plate and a second precise filter plate, and irregular sawtooth protrusions are arranged at the positions where water flows in the filter holes of the first filter plate. When the sealing door plate is closed, the sealing door plate can completely cover the filter plate extraction channel, and when the sealing door plate is opened, the filter plate can be conveniently replaced.
The clamping groove for clamping the filter plate can be provided with a standby clamping groove, and the rainwater treatment system can directly insert a new filter plate to be replaced into the standby clamping groove and then take out the filter plate to be cleaned in an operation state.
Sealing door plates of the filter plate extraction channels are provided with sealing strips. The mountain-shaped water inlet guide structure in the filtering and precipitating tank can fully and uniformly lay the sewage water flow on the whole filter plate, and fully utilizes the filter plate. The first filter plate is mainly used for intercepting and filtering massive impurities and sludge or other suspended matters, and the large-sized impurities and the sludge or other suspended matters enter the sludge impurity recovery box through a sewage outlet at the other side of the filter box. The irregular saw tooth protrusions of the filter holes can well further intercept impurities. The second precise filter plate filters and purifies rainwater on fine particles, and the rainwater precipitated by the precipitation plate is comprehensively purified by the pH adjusting device and the ultraviolet disinfection device and can be further utilized.
Further, in the sewage treatment system, the sewage treatment system is a movable miniature sewage treatment system, and the bottom of the tank body is provided with travelling wheels. The whole sewage treatment system is designed into a miniature sewage treatment plant, and can be conveniently moved according to the change of construction sites.
Further, the sewage treatment circulating system in the sewage treatment system further comprises a construction wastewater collecting device, wherein the construction wastewater collecting device comprises a herringbone bottom capable of opening and closing and a baffle plate part positioned on the herringbone bottom, a plastic sealing part is arranged on one side, close to the ground, of the herringbone bottom, and the construction wastewater collecting device is made of flexible materials. In specific use, the herringbone bottom is firstly opened, the whole device is in seamless fit with the ground through the molding sealing part, and then construction operation is enclosed, so that the construction wastewater can be collected and gathered. After the use, the construction waste water collecting device can be conveniently wound and stored.
Further, the construction and domestic wastewater treatment system in the wastewater treatment system comprises a biological filter and a wastewater purification chamber, wherein the biological filter is covered on the top of the wastewater purification chamber, the wastewater purification chamber is divided into at least 8 chambers by a baffle plate, the chambers comprise flocculation reaction chambers, sedimentation chambers, anaerobic first chambers, anaerobic second chambers, aeration first chambers, aeration second chambers, aeration third chambers and water purification chambers which are sequentially arranged according to the wastewater treatment flow direction, and the chambers are communicated through overflow holes; one side of the flocculation reaction chamber is provided with a water inlet, and the other side of the flocculation reaction chamber is communicated with the sedimentation chamber through an overflow hole; the anaerobic chamber and the aeration chamber are respectively provided with a biological reaction box, and the biological reaction boxes are closely contacted with overflow holes of the corresponding chambers; an aeration device is also arranged in the aeration chamber. The waste water purifying chamber can be a container with a top cover, and an exhaust hole is arranged on the top cover of the waste water purifying chamber; the waste water purifying chamber can also be an open container, and the top of the waste water purifying chamber is directly covered by the biological filter.
After the domestic wastewater and construction wastewater subjected to preliminary filtration enter a treatment system, firstly treating suspended matters and colloid substances through a flocculation reaction chamber and a sedimentation chamber, then carrying out microbial reaction through an anaerobic first chamber and an anaerobic second chamber, and carrying out enzymatic hydrolysis reaction of hydrocarbon to form low molecular weight compounds in the life process of anaerobic microorganisms in the anaerobic chamber; microorganisms feeding on simple linear low molecular weight acids and aldehydes, oxidized forms of nitrogen, phosphorus and phosphates have both organic degradation and denitrification effects. The first aeration chamber, the second aeration chamber and the third aeration chamber are used for aerobic microbial reaction, oxygen is provided by an aeration device, and the aeration device is used for providing oxygen by an air compressor; on the one hand, is responsible for degrading all the organic matter remaining in the anaerobic chamber and, on the other hand, oxidizing the ammonium and nitrogen present in the water.
Further, in the sewage treatment system, the overflow hole of the water purifying chamber is provided with the water quality monitor, and the bottom of the water purifying chamber is provided with the water level monitor II and the water outlet pump.
Further, each aeration chamber in the sewage treatment system of the present invention is provided with an aeration device.
Further, in the sewage treatment system of the present invention, the flocculation reaction chamber includes a stirring device and a drug feeder connected to the stirring device and penetrating the upper part of the biological filter.
Further, in the sewage treatment system of the invention, the aeration chamber is also provided with a water supply pump communicated with the biological filter.
Furthermore, a return pipe is arranged between the anaerobic first chamber and the aeration third chamber in the sewage treatment system.
The anaerobic bacteria in the anaerobic chamber hydrolyze soluble organic matters in the sewage into organic acids, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, and pollutants such as protein, fat and the like are aminated. Aerobic microorganisms and digestive bacteria exist in the aeration chamber, wherein the aerobic microorganisms decompose organic matters into CO 2 And H 2 O; under the condition of sufficient oxygen supply, the nitrifying action of nitrifying bacteria can make NH 3 Oxidation of N to NO 3- Returning to the anaerobic chamber through the return pipe, and under the anoxic condition, the denitrification of anaerobic bacteria can lead NO 3- Reducing to molecular nitrogen.
Further, in the sewage treatment system, the biological filter shell is of a hole-shaped structure, a meshed capillary drip irrigation water supply structure is paved inside the biological filter shell, at least two layers of capillary drip irrigation water supply structures are paved, longitudinal capillaries penetrate through the layers, and anti-blocking drippers are arranged on the capillary drip irrigation water supply structures; the uppermost pipeline of the capillary drip irrigation water supply structure is communicated with the water supply pump; the bioreactor box can be detachably arranged.
The biological filter is used for filtering and purifying air in a sewage purification process in construction and domestic wastewater treatment systems, and air pollution is removed by utilizing microorganisms to treat malodorous compounds, water-soluble Volatile Organic Compounds (VOC) and various sulfur-containing compounds. Microorganisms, including bacteria and fungi, in the biofilter are immobilized on the biofilm and degrade contaminants. Humidity is provided to microorganisms in the system by the reticulated capillary drip irrigation water supply structure 20, and oxygen-containing water is provided by a water supply pump arranged in the aeration chamber, so that the activity of the microorganisms is maintained.
Further, in the sewage treatment system of the invention, the water quality monitor, the water level monitor II, the water level monitor I, the electric valve and the water flow monitor are respectively and electrically connected with the control system. Because the whole volume of the sewage treatment system is smaller, the microorganisms in the biological reaction box need to be replaced regularly, and therefore, the water quality monitor can be arranged to further monitor the quality of purified water, so as to infer whether the biological reaction box needs to be replaced.
Further, in the sewage treatment system, the aeration device comprises an air compressor and an aeration part in the cavity, wherein the aeration part comprises an aeration pipe part and an aeration disc part, and aeration holes are formed in the aeration pipe part and the aeration disc part and can provide sufficient oxygen for the system.
Further, the stirring device in the sewage treatment system comprises a rotating main shaft and stirring blades, wherein the rotating main shaft and the stirring blades are of hollow structures which are communicated with each other, and are provided with drug feeding holes; the rotary main shaft is communicated with the drug feeder, a drug feeding valve is arranged at one end of the rotary main shaft, which is close to the drug feeder, and the drug feeding valve is electrically connected with the control system.
Further, in the sewage treatment system of the invention, the overflow hole of the flocculation reaction chamber is higher than the overflow hole of the sedimentation chamber, and the heights of the overflow holes of the anaerobic first chamber, the anaerobic second chamber, the aeration first chamber, the aeration second chamber and the aeration third chamber are sequentially reduced.
Compared with the prior art, the invention has the following beneficial technical effects:
the rainwater treatment system of the sewage treatment system automatically recognizes and controls the opening and closing of the rainwater treatment system according to the collection amount of rainwater, and is simple to operate. The sewage treatment system disclosed by the invention has small occupied area, can be moved according to the needs, further realizes deep sewage cleaning treatment, can be used for a construction site water supply system in a circulating manner, and realizes zero sewage discharge. The main body of the sewage treatment system is made of shock-resistant sheet polypropylene, the service life of the device is longer, and the energy consumption for assembly and operation is lower.
Drawings
FIG. 1 is a schematic diagram of a sewage treatment system according to the present invention;
FIG. 2 is a schematic diagram of a partial structure of a filter settling tank 106 of the present invention;
FIG. 3 is a schematic view of the structure of the external side of the filter settling tank 106 of the present invention;
FIG. 4 is a schematic view of a construction wastewater collection apparatus according to the present invention;
FIG. 5 is a schematic diagram of a biological filter 202 according to the present invention;
FIG. 6 is a schematic view showing the structure of the dispenser 211 and the stirring device according to the present invention;
wherein: 1. the rainwater treatment system, 2, construction and domestic wastewater treatment system, 3, pH adjusting device, 4, ultraviolet disinfection device, 5, water storage tank, 6, tank body, 101, water inlet pipe, 102, water level monitor I, 103, water storage tank, 104, electric valve, 105, water flow monitor, 106, filtration settling tank, 107, first filter plate, 108, second precise filter plate, 109, sludge impurity recovery tank, 110, sedimentation baffle, 111, filtration settling tank water outlet pipe, 112, water inlet guide structure, 113, sealing door plate, 114, storage tank, 115, sawtooth bump, 200, water inlet, 201, capillary drip irrigation water supply structure, 202, biological filter, 203, water supply pump, 204, return pipe, 210, flocculation reaction chamber, 220, sedimentation chamber, 230, anaerobic first chamber, 240, anaerobic second chamber, 250, aeration first chamber, 260, aeration second chamber, 270, aeration third chamber, 280, clean water chamber, drug feeder, 212, overflow hole, 222, sedimentation chamber hole, 231, anaerobic first chamber biological reaction box, 241, biological reaction box, 201, capillary drip irrigation second chamber, biological reaction box, capillary drip irrigation water supply structure, 202, biological filter 203, water supply pump, 204, return pipe, flocculation reaction chamber, 230, anaerobic first chamber, anaerobic second chamber, 240, anaerobic second chamber, drug feeder, 250, anaerobic second chamber, aeration second chamber, biological reaction box for water tank for water inlet and water tank for water inlet.
Description of the embodiments
For a clearer understanding of technical features, objects, and effects of the present invention, a detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
The invention provides a sewage treatment system for building construction.
Referring to fig. 1 to 6, in some embodiments of the present invention, there is provided a sewage treatment system for construction, the sewage treatment system including a tank 6 and a rainwater treatment system 1, a construction and domestic wastewater treatment system 2, a pH adjusting device 3, an ultraviolet sterilizing device 4, a water storage tank 5, and a control system within the tank 6; the rainwater treatment system 1 and the water outlet of the construction and domestic wastewater treatment system 2 are communicated with the pH adjusting device 3, and two ends of the ultraviolet disinfection device 4 are respectively communicated with the pH adjusting device 3 and the water storage tank 5.
The main body of the sewage treatment system is made of shock-resistant sheet polypropylene.
According to the invention, the ultraviolet disinfection device is arranged to disinfect purified water output by the water outlet pipe, so that pollution and purification steps caused by the use of chemical disinfectants are reduced, and the system cost and the occupied area are reduced. The invention can be directly used in construction sites after the sewage is deeply purified by the construction and domestic wastewater treatment system 2.
In some embodiments of the invention, the rainwater treatment system 1 comprises a water storage tank 103, a filtration and precipitation tank 106 and a sludge impurity recovery tank 109; a water inlet pipe 101 and a first water level monitor 102 are arranged on one side of the water storage tank 103, and the bottom of the other side is connected with the filtering sedimentation tank 106 through a water outlet pipe; the water outlet pipe is provided with an electric valve 104 and a water flow monitor 105.
The first water level monitor 102, the electric valve 104 and the water flow monitor 105 of the rainwater treatment system 1 are used for controlling the rainwater treatment system. The water level in the water storage tank 103 is monitored through a first water level monitor 102, and when the water storage amount is collected to a certain amount, the control system controls an electric valve 104 to automatically start a rainwater purification treatment system; when the water storage amount is reduced to a certain amount, the control system controls the electric valve 104 to automatically close the rainwater purification treatment system. When the rainwater treatment system 1 is in an operation state and the water flow rate is smaller than 0.8m/s as shown by the water flow monitor 105, the water flow monitor 105 gives an alarm to the control system to prompt the replacement of the filter plate or the cleaning of the filter plate.
In some embodiments, a sludge scraping blade can be arranged on the upper side of the filter plate, sludge is collected into a sludge collecting box, and the sludge collecting box is cleaned at regular time.
In some embodiments of the present invention, a filter plate is disposed in the filtration and precipitation tank 106, the filter plate is clamped with the filtration and precipitation tank 106 by a clamping groove, an included angle between the filter plate and a horizontal plane is 20-30 °, and a filter plate extraction channel is disposed on a side wall of the filtration and precipitation tank 106 and located at an upper portion of a water outlet pipe 111 of the filtration and precipitation tank; a mountain-shaped water inlet guide structure 112 is arranged at the top of the side wall in the filtering and precipitating tank 106, and the water inlet guide structure 112 is tightly fixed on the side wall of the filtering and precipitating tank 106; a sedimentation baffle 110 is further arranged below the filter plate in the filtration and sedimentation tank 106, and the sludge impurity recovery tank 109 is connected with the filtration and sedimentation tank 106 through a delivery pipe.
In some embodiments, the flow directing structure 112 includes a first end connected to a sidewall of the filter settling tank 106 and a second end adjacent to the filter plate, the first end being higher than the second end.
In some embodiments, a sealing door plate 113 is arranged at the extraction channel of the filter plate, one end of the sealing door plate 113 is hinged with the outer wall of the filter settling tank 106, and the other end is in locking connection with the outer wall of the filter settling tank 106; a filter plate storage box 114 is arranged on the outer wall of the filter sedimentation box 106 and below the filter plate extraction channel; the filter plates at least comprise a first filter plate 107 and a second precision filter plate 108, and the filter holes of the first filter plate 107 are provided with irregular saw-tooth protrusions 115 at the positions where the water flows in.
In some embodiments, the clamping groove for clamping the filter plate can be provided with a spare clamping groove, and the rainwater treatment system 1 can directly insert a new filter plate to be replaced into the spare clamping groove and then take out the filter plate to be cleaned in the running state.
In some embodiments, the sealing door 113 of the filter plate extraction channel is provided with sealing strips. The mountain-shaped water inlet guide structure 112 in the filtering and settling tank 106 can fully and uniformly lay the sewage water flow to the whole filtering plate, and fully utilize the filtering plate. The first filter plate 107 mainly intercepts and filters bulk impurities and sludge or other suspended matters, and enters the sludge impurity recovery tank 109 through a sewage outlet on the other side of the filter tank. The irregular saw tooth projections 115 of the filter holes can intercept the foreign substances well. The second precise filter plate 108 filters and purifies the rainwater on the fine particles, and the rainwater precipitated by the precipitation plate is comprehensively purified by the pH adjusting device 3 and the ultraviolet sterilizing device 4 and can be further utilized.
In some embodiments of the present invention, the sewage treatment system is a mobile miniature sewage treatment system, and travelling wheels are installed at the bottom of the tank 6. The whole sewage treatment system is designed into a miniature sewage treatment plant, and can be migrated according to the change of the construction site.
In some embodiments of the invention, the sewage treatment circulation system further comprises a construction wastewater collection device, wherein the construction wastewater collection device comprises a herringbone bottom capable of opening and closing and a baffle plate part positioned on the herringbone bottom, a plastic sealing part is arranged on one side, close to the ground, of the herringbone bottom, and the construction wastewater collection device is made of flexible materials.
In some embodiments of the present invention, the construction and domestic wastewater treatment system 2 comprises a biological filter 202 and a wastewater purification chamber, wherein the biological filter 202 covers the top of the wastewater purification chamber, the wastewater purification chamber is divided into at least 8 chambers by a partition board, the chambers comprise a flocculation reaction chamber 210, a sedimentation chamber 220, an anaerobic first chamber 230, an anaerobic second chamber 240, an aeration first chamber 250, an aeration second chamber 260, an aeration third chamber 270 and a water purification chamber 280 which are sequentially arranged according to the wastewater treatment flow direction, and the chambers are communicated through overflow holes 212; one side of the flocculation reaction chamber 210 is provided with a water inlet 200, and the other side is communicated with the sedimentation chamber 220 through an overflow hole 212; the anaerobic chamber and the aeration chamber are respectively provided with a biological reaction box, wherein the anaerobic chamber 230, the anaerobic chamber 240, the aeration chamber 250, the aeration chamber 260 and the aeration chamber 270 are respectively provided with an anaerobic chamber biological reaction box 231, an anaerobic chamber biological reaction box 241, an aeration chamber biological reaction box 251, an aeration chamber biological reaction box 261 and an aeration chamber biological reaction box 271, and each biological reaction box is tightly contacted with the overflow hole 212 of each chamber; and each aeration chamber is provided with an aeration device.
After the domestic wastewater and construction wastewater enter the treatment system, suspended matters and large-particle impurities are treated through the flocculation reaction chamber 210 and the sedimentation chamber 220, then microbial reactions are carried out through the anaerobic first chamber 230 and the anaerobic second chamber 240, and during the life process of anaerobic microorganisms in the anaerobic chamber, enzymatic hydrolysis of hydrocarbon occurs along with the formation of low molecular weight compounds, particularly the reduction of simple linear low molecular weight acids and aldehydes and nitrogen in oxidized form and the consumption of phosphorus (phosphate) take the food of microorganisms, and meanwhile, the anaerobic wastewater has the functions of degrading organic matters and denitrification. The first aeration chamber 250, the second aeration chamber 260 and the third aeration chamber 270 are subjected to aerobic microbial reaction, oxygen is provided by an aeration device, and the aeration device is provided with oxygen by an air compressor; on one hand, the anaerobic reactor is responsible for degrading all organic matters remained in the anaerobic chamber, and on the other hand, ammonia nitrogen in the water is oxidized.
In some embodiments of the present invention, a water quality monitor 272 is disposed at the overflow hole 212 of the water purifying chamber 280, and a second water level monitor 283 and a water outlet pump 281 are disposed at the bottom of the water purifying chamber 280.
In some embodiments of the invention, each aeration chamber is equipped with an aeration device.
In some embodiments of the invention, the flocculation reaction 210 includes a stirring device and a dispenser 211 coupled to the stirring device and extending through an upper portion of the biological filter 202.
In some embodiments of the present invention, the aeration-chamber 250 is further provided with a water supply pump 203 in communication with the biological filter 202.
In some embodiments of the invention, a return line 204 is provided through the anaerobic chamber 230 and the aeration chamber 270.
The anaerobic bacteria in the anaerobic chamber hydrolyze soluble organic matters in the sewage into organic acids, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, and pollutants such as protein, fat and the like are aminated. Aerobic microorganisms and digestive bacteria exist in the aeration chamber, wherein the aerobic microorganisms decompose organic matters into CO 2 And H 2 O, under the condition of sufficient oxygen supply, the nitrifying action of nitrifying bacteria can make NH 3 Oxidation of N to NO 3- Returns to the anaerobic chamber 230 through the return pipe 204, and under anoxic conditions, the denitrification of anaerobic bacteria causes NO 3- Reducing to molecular nitrogen.
In some embodiments of the present invention, the housing of the biological filter 202 is a hole-shaped structure, and a meshed capillary drip irrigation water supply structure 201 is laid inside, at least two layers of capillary drip irrigation water supply structures 201 are laid, longitudinal capillaries penetrate between the layers, and the capillary drip irrigation water supply structures 201 are provided with anti-blocking drippers; the uppermost layer pipeline of the capillary drip irrigation water supply structure 201 is communicated with the water supply pump 203; the bioreactor box is detachable.
The biofilter 202 is used for air filtration and purification of sewage purification processes in construction and domestic wastewater treatment system 2, and removes air pollution by microorganisms, and treats malodorous compounds and water-soluble volatile organic compounds VOC and various sulfur-containing compounds. Microorganisms, including bacteria and fungi, in the biofilter are immobilized on the biofilm and degrade contaminants. Humidity is provided to microorganisms in the system by the net capillary drip irrigation water supply structure 201, and oxygen-containing water is provided by the water supply pump 203 arranged in the aeration-chamber 250, so that the activity of the microorganisms is maintained.
In some embodiments of the present invention, the water quality monitor 272, the second water level monitor 283, the first water level monitor 102, the electric valve 104 and the water flow monitor 105 are electrically connected to the control system, respectively. Because the whole volume of the sewage treatment system is smaller, the microorganisms in the biological reaction box need to be replaced periodically, and therefore, the water quality monitor 272 can be arranged to further monitor the quality of purified water, so as to infer whether the biological reaction box needs to be replaced.
In some embodiments, the aeration device comprises an air compressor and an aeration part in the chamber, wherein the aeration part comprises an aeration pipe part and an aeration disc part, and aeration holes are formed in the aeration pipe part and the aeration disc part and can provide sufficient oxygen for a system.
In some embodiments, the stirring device comprises a rotating main shaft and stirring blades, wherein the rotating main shaft and the stirring blades are hollow structures which are communicated with each other, and are provided with drug administration holes; the rotary main shaft is communicated with the drug feeder 211, one end of the rotary main shaft, which is close to the drug feeder 211, is provided with a drug feeding valve, and the drug feeding valve is electrically connected with the control system.
In some embodiments, the overflow aperture 212 of the flocculation reaction chamber 210 is higher than the overflow aperture 222 of the sedimentation chamber, and the height of the overflow apertures of the anaerobic first chamber 230, the anaerobic second chamber 240, the aeration first chamber 250, the aeration second chamber 260, and the aeration third chamber 270 is sequentially slightly reduced.
The rainwater treatment system of the sewage treatment system in the embodiment of the invention automatically identifies and controls the opening and closing of the rainwater treatment system according to the collection amount of rainwater, and is simple to operate; the occupied area is small, the sewage can be moved according to the requirements, the sewage deep cleaning treatment is realized, the purified sewage can be recycled for a water supply system of a construction site, and the zero discharge of the sewage is realized; the main body is made of shock-resistant sheet polypropylene, the service life of the device is longer, and the energy consumption for assembly and operation is lower.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, either fixedly attached, detachably attached, or integrally formed; unless explicitly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present disclosure, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the invention has been described with reference to the specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. The parts of the present invention not described in detail in the specification are known to those skilled in the art. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. A sewage treatment system for building construction, which is characterized by comprising a box body (6) and a rainwater treatment system (1), a construction and domestic wastewater treatment system (2), a pH adjusting device (3), an ultraviolet disinfection device (4), a water storage tank (5) and a control system which are positioned in the box body (6); the water outlets of the rainwater treatment system (1) and the construction and domestic wastewater treatment system (2) are communicated with the pH adjusting device (3), and the two ends of the ultraviolet disinfection device (4) are respectively communicated with the pH adjusting device (3) and the water storage tank (5);
the rainwater treatment system (1) comprises a water storage tank (103), a filtering sedimentation tank (106) and a sludge impurity recovery tank (109); a water inlet pipe (101) and a first water level monitor (102) are arranged on one side of the water storage tank (103), and the bottom of the other side of the water storage tank (103) is connected with the filtering sedimentation tank (106) through a water outlet pipe; an electric valve (104) and a water flow monitor (105) are arranged on the water outlet pipe;
a filter plate is arranged in the filtering and precipitating box (106), the filter plate is connected with the filtering and precipitating box (106) in a clamping way in a clamping groove way, the included angle between the filter plate and the horizontal plane is 20-30 degrees, and a filter plate extraction channel is arranged on the side wall of the filtering and precipitating box (106) and positioned at the upper part of a water outlet pipe (111) of the filtering and precipitating box; a mountain-shaped water inlet guide structure (112) is arranged at the top of the side wall in the filtering and precipitating box (106), and the water inlet guide structure (112) is tightly fixed on the side wall of the filtering and precipitating box (106); a precipitation baffle plate (110) is arranged below the filter plate in the filtering and precipitating box (106), and the sludge impurity recycling box (109) is connected with the filtering and precipitating box (106) through a delivery pipe;
the water inlet flow guide structure (112) comprises a first end connected with the side wall of the filtering and precipitating box (106) and a second end close to the filtering plate, and the first end is higher than the second end;
the construction and domestic wastewater treatment system (2) comprises a biological filter (202) and a wastewater purification chamber, wherein the biological filter (202) covers the top of the wastewater purification chamber, the wastewater purification chamber is divided into at least 8 chambers by a baffle plate, the chambers comprise flocculation reaction chambers (210), sedimentation chambers (220), anaerobic first chambers (230), anaerobic second chambers (240), aeration first chambers (250), aeration second chambers (260), aeration third chambers (270) and water purification chambers (280) which are sequentially arranged according to the wastewater treatment flow direction, and all the chambers are communicated through overflow holes (212);
the aeration one chamber (250) is also provided with a water supply pump (203) communicated with the biological filter (202);
the housing of the biological filter (202) is of a hole-shaped structure, a meshed capillary drip irrigation water supply structure (201) is paved inside the housing, at least two layers of capillary drip irrigation water supply structures (201) are paved, longitudinal capillaries penetrate through the layers, and anti-blocking drippers are arranged on the capillary drip irrigation water supply structures (201); the uppermost pipeline of the capillary drip irrigation water supply structure (201) is communicated with the water supply pump (203).
2. The sewage treatment system according to claim 1, wherein a sealing door plate (113) is arranged at the extraction channel of the filter plate, one end of the sealing door plate (113) is hinged with the outer wall of the filter settling tank (106), and the other end is in locking connection with the outer wall of the filter settling tank (106); a filter plate storage box (114) is arranged on the outer wall of the filter sedimentation box (106) and below the filter plate extraction channel; the filter plate comprises a first filter plate (107) and a second precise filter plate (108), wherein irregular sawtooth bulges (115) are arranged at the positions where water flows in the filter holes of the first filter plate (107).
3. The sewage treatment system according to claim 2, wherein the sewage treatment system is a mobile miniature sewage treatment system, and travelling wheels are mounted at the bottom of the tank (6).
4. A sewage treatment system according to claim 3, wherein the sewage treatment circulation system further comprises a construction wastewater collection device, the construction wastewater collection device comprises a herringbone bottom which can be opened and closed, a baffle plate part positioned on the herringbone bottom, a plastic sealing part is arranged on one side of the herringbone bottom close to the ground, and the construction wastewater collection device is made of flexible materials.
5. The sewage treatment system according to claim 4, wherein the flocculation reaction chamber (210) is provided with a water inlet (200) at one side and is communicated with the sedimentation chamber (220) at the other side through an overflow hole (212); the anaerobic chamber and the aeration chamber are respectively provided with a biological reaction box, and the biological reaction boxes are closely contacted with overflow holes (212) of the corresponding chambers; an aeration device is also arranged in the aeration chamber;
a water quality monitor (272) is arranged at the overflow hole (212) of the water purifying chamber (280), and a water level monitor II (283) and a water outlet pump (281) are arranged at the bottom of the water purifying chamber (280);
the flocculation reaction chamber (210) comprises a stirring device and a drug feeder (211) which is connected with the stirring device and penetrates through the upper part of the biological filter (202);
a return pipe (204) is arranged between the anaerobic first chamber (230) and the aeration third chamber (270).
6. The wastewater treatment system of claim 5, wherein the bioreactor cartridge is removable.
7. The wastewater treatment system of claim 6, wherein the water quality monitor (272), the second water level monitor (283), the first water level monitor (102), the electric valve (104) and the water flow monitor (105) are electrically connected to the control system, respectively.
8. The wastewater treatment system of claim 7, wherein the aeration device comprises an air compressor and an aeration portion within the chamber, the aeration portion comprising an aeration tube portion and an aeration pan portion, the aeration tube portion and the aeration pan portion each having aeration holes therein.
9. The sewage treatment system of claim 8, wherein the stirring device comprises a rotary main shaft and stirring blades, wherein the rotary main shaft and the stirring blades are hollow structures which are communicated with each other, and are provided with drug administration holes; the rotary main shaft is communicated with the drug feeder (211), a drug feeding valve is arranged at one end of the rotary main shaft, which is close to the drug feeder (211), and the drug feeding valve is electrically connected with the control system.
10. The wastewater treatment system of claim 9, wherein the overflow aperture (212) of the flocculation reaction chamber (210) is higher than the overflow aperture (222) of the sedimentation chamber, and the heights of the overflow apertures (212) of the anaerobic first chamber (230), the anaerobic second chamber (240), the aeration first chamber (250), the aeration second chamber (260) and the aeration third chamber (270) are sequentially decreased.
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