CN104817233A - Mechanical cutting wastewater treatment device and method - Google Patents
Mechanical cutting wastewater treatment device and method Download PDFInfo
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- CN104817233A CN104817233A CN201510195822.4A CN201510195822A CN104817233A CN 104817233 A CN104817233 A CN 104817233A CN 201510195822 A CN201510195822 A CN 201510195822A CN 104817233 A CN104817233 A CN 104817233A
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention relates to a mechanical cutting wastewater treatment device and method. The device comprises a wastewater adjusting tank, an acidification demulsification tank, an ozone oxidation floatation tank, a coagulative precipitation tank, an advanced oxidation reaction precipitation tank and a reverse-flow biological aerated filter, the acidification demulsification tank is provided with an acid liquor adding system, the ozone oxidation floatation tank comprises a mixed area and a separating area, the coagulative precipitation tank comprises a stirring mixed area and a precipitation area, the advanced oxidation reaction precipitation tank comprises a water inlet main pipe, a sponge iron packing cylinder, a radiant water distribution pipe and an overflow weir, the reverse-flow biological aerated filter comprises a downstream area, an upstream area and a sludge area, the quantity and the quality of wastewater are adjusted through the wastewater adjusting tank, then acidification demulsification is performed for the wastewater, the wastewater performing the acidification demulsification enters the ozone oxidation floatation tank to remove floating oil, the wastewater and a coagulant precipitate in the coagulative precipitation tank in a mixed manner, then the wastewater enters the advanced oxidation reaction precipitation tank, contaminants are oxidized and decomposed, and the wastewater reaches the standard and then is discharged after reacted and filtered through the reverse-flow biological aerated filter.
Description
Technical field
The present invention relates to environmental technology field, be specifically related to a kind of mechanical blades and cut wastewater treatment equipment and method.
Background technology
At present, along with the fast development of modern mechanical manufacturing industry, cutting fluid is widely used in the cutting of metal and alloy thereof, grinding technique, cutting fluid mainly plays cooling, lubrication, clean and antirust, reach tool life, improve processing quality, precision and efficiency, prevent the object of lathe, workpiece corrosion.Cutting fluid in use for some time, is inevitably mixed into some impurity, as metallics, dust, abrasive material powder, floating wet goods.These impurity all can grievous injury cutting fluid, accelerates the inefficacy of cutting fluid.In addition, cutting fluid itself is rich in organism and mineral substance, in use because of air contact, chip deposition, assorted oil be mixed into, workpiece carries or the bacterium etc. that contains in dilution water all may cause growing of microorganism, thus makes cutting fluid blackening, smelly.These are used to lose efficacy if therefore continue or rotten cutting fluid does not only have cooling, lubrication, the antirust and effect of cleaning, adverse influence can be produced on the contrary to machining, these cutting fluids final can only discard as industrial effluent, the cutting fluid more renewed again, produces thus and cuts waste water in a large number.
Cut waste water and there is following characteristics: (1), containing impurity such as a large amount of mineral oil, various additives and scrap metals, composition is complicated, colour difference, belongs to high density oil-containing emulsifying water; (2) contain the additive such as tensio-active agent, sanitas in waste water, chemical stability is high, and the toxicity of portions additive hinders microorganism active to a certain extent, causes it not easily to degrade; (3) variation water quality is comparatively large, the waste component composition of different sources and concentration difference very large; (4) owing to containing the alkaline matters such as sodium sulfonate, trolamine, borax in waste water, general in neutral meta-alkali.
Cut waste water, to environmental and human health impacts, there is great hazardness, the treatment process of such waste water is broadly divided into Physical, physico-chemical processes, chemical method, biological process etc. at present, but adopts traditional single one physical, chemistry, biological process all can not reach effective treatment effect.
Summary of the invention
The technical problem to be solved in the present invention is: the process problem of cutting waste water in order to solve above-mentioned mechanical blades, the invention provides a kind of mechanical blades and cuts wastewater treatment equipment and method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of mechanical blades cuts wastewater treatment equipment, comprises wastewater equalization pond, acid out breakdown of emulsion pond, ozone oxidation air flotation pool, coagulative precipitation tank, advanced oxidation reaction settling basin, reflux formula BAF; Described wastewater equalization pond, acid out breakdown of emulsion pond, ozone oxidation air flotation pool, coagulative precipitation tank, advanced oxidation reaction settling basin, reflux formula BAF are communicated with successively.
Described wastewater equalization pond comprises water inlet pipe and rising pipe, for regulating water quality and the water yield of waste water.
Be provided with water inlet pipe bottom described acid out breakdown of emulsion pond, middle part is provided with whipping appts, and middle and upper part is provided with acid solution and adds and pH value TT&C system, and top is provided with rising pipe.
Described ozone oxidation air flotation pool comprises water inlet pipe and the rising pipe for discharging the rear water of process, and described ozone oxidation air flotation pool is followed successively by mixing zone and disengaging zone from bottom to up; Described disengaging zone comprises catchment area and is positioned at the dregs of fat district of catchment area; The bottom of described ozone oxidation air flotation pool mixing zone is provided with aeration plate, the top of described aeration plate is provided with water distributor, described water distributor connects water inlet pipe, and described aeration plate is connected with gas blower outside ozone oxidation air flotation pool and ozonizer by aeration tube; Triphase separator is provided with in described disengaging zone, described triphase separator comprise flow deflector and be positioned at below flow deflector with flow deflector with the use of triangle guide ring, described triangle guide ring is arranged on the inwall of ozone oxidation air flotation pool, the top of described flow deflector is identical with the shape of disengaging zone, the bottom of described flow deflector is horn-like, and the internal diameter of the bottom of described flow deflector is greater than the internal diameter of triangle guide ring; The top of described disengaging zone outer wall is provided with overfalling weir, and described overfalling weir is connected with rising pipe; Described dregs of fat district is laid with dregs of fat scraper plate and crackling receiving tank; When waste water overflows from the bottom up, water enters the bottom of flow deflector together with the dregs of fat by triangle guide ring, and the dregs of fat continue up to enter dregs of fat district, and water enters catchment area by the gap between flow deflector and triangle guide ring; In order to the better effects if of wastewater treatment, described water distributor is arranged to concentric circles or cross shape, water distributor has horizontal radiation water outlet; Further, described aeration plate is the pore type aeration plate being evenly provided with micropore.
The described rising pipe of ozone oxidation air flotation pool is communicated with the water inlet pipe of coagulative precipitation tank.
Described coagulative precipitation tank comprises and is uniformly mixed district and settling region, is uniformly mixed bottom district and is provided with wastewater inlet pipe, and middle and upper part is provided with liquid add-on system, alkali lye adds and pH value TT&C system, is provided with whipping appts being uniformly mixed in the middle part of district; Baffle plate is provided with in described settling region, the inwall of this baffle plate and settling tank forms the waste water runner entering settling region as waste water, the exit of settling region is provided with triphase separator, the outlet top of settling region is provided with overfalling weir, the tapered structure of settling region bottom design, is provided with sediment discharge valve bottom settling region.
Described advanced oxidation reaction settling basin comprises into water main, sponge iron filling tube, radiation formula water distributor, overfalling weir and the rising pipe be built in sponge iron filling tube.Described sponge iron filling tube is made up of stainless steel, radiation formula water distributor is provided with in sponge iron filling tube, radiation formula water distributor is positioned at sponge iron filling tube central authorities, sponge iron filler is added around water distributor, water distributor connects water inlet main, and sponge iron filling tube and water distributor have horizontal radiation water outlet.Described advanced oxidation reaction settling basin upper outside is provided with overfalling weir, and described overfalling weir is connected with rising pipe; The tapered structure of advanced oxidation reaction settling basin bottom design, is provided with sediment discharge valve at bottommost.
The sponge iron filler added in described sponge iron filling tube is mixed by gac, sponge iron and hydrogen peroxide.
Described reflux formula BAF middle and upper part is cylindrical, bottom is conical structure, comprises lower current area, ascending zone and mud district; Described lower current area is positioned at the middle part of the cylindrical structural of reflux formula BAF, for cylindrical structural, lower current area top is provided with water inlet pipe and water distributor, filler is provided with in the middle part of lower current area, lower current area bottom is provided with aeration tube, the bottom of described lower current area is provided with traverse baffle, and the longitudinal section of described traverse baffle is horn-like; Described ascending zone is positioned at the periphery of lower current area, the top of traverse baffle, and be provided with filler in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir; Described mud district is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district is provided with mud discharging valve.
The standard water discharge discharge of described reflux formula BAF.
Adopt above-mentioned mechanical blades a to cut method that wastewater treatment equipment carries out wastewater treatment, has following steps:
1. waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe.
2. the water after regulating enters acid out breakdown of emulsion pond by the water inlet pipe bottom acid out breakdown of emulsion pond, and acid solution is added and pH value TT&C system regulates the pH value of waste water to be 3-4, and the oil in water emulsion in acid condition in waste water is destructurized, becomes suspended state.
3. then waste water enters the middle and lower part of ozone oxidation air flotation pool by water inlet pipe; The aeration plate be positioned at below ozone oxidation air flotation pool water distributor produces a large amount of tiny bubble, ozone is oxidized to the macromolecular substance in waste water the small-molecule substance being easy to absorb and adsorb, simultaneously the tiny bubble that produces of aeration plate and the dregs of fat adhere to and form mixture and rise under buoyancy, under the effect of ozone oxidation air flotation pool disengaging zone triphase separator, mixture rises to dregs of fat district, under the effect of dregs of fat scraper plate, the dregs of fat enter crackling receiving tank and cleaned outward transport; Water after separating treatment enters ozone oxidation air flotation pool catchment area under the effect of ozone oxidation air flotation pool three-phase separation area flow deflector, is entered the water inlet pipe of coagulative precipitation tank by overfalling weir, rising pipe and pipe connecting.
4. the wastewater inlet pipe that waste water is uniformly mixed bottom district by coagulative precipitation tank enters coagulative precipitation tank, and regulate waste water to be neutral, waste water mixes with the coagulating agent from liquid add-on system, utilizes the whipping appts be arranged in the middle part of stirring area to stir; Waste water after coagulating enters settling region, and the triphase separator of settling region realizes mud-water separation; Mud sinks to the bottom of coagulative precipitation tank settling region under gravity, is discharged by the sediment discharge valve of bottom; Waste water enters the water inlet pipe of advanced oxidation reaction settling basin by overfalling weir, rising pipe and pipe connecting.
5. the water after coagulating sedimentation enters advanced oxidation reaction settling basin by the water inlet main of advanced oxidation reaction settling basin, water distributor, hydrogen peroxide in sponge iron filling tube, sponge iron reactant salt produce hydroxyl radical free radical active in a large number, destroy the structure of Pollutants in Wastewater, the oxidized decomposition of pollutent in waste water, the waste water after oxygenolysis enters the water inlet pipe of reflux formula BAF by overfalling weir, rising pipe and pipe connecting.The throw outs such as mud sink to the bottom of advanced oxidation reaction settling basin under gravity, are discharged by the sediment discharge valve of bottom.
6. waste water enters the lower current area of reflux formula BAF by water inlet pipe, water distributor, the air that aeration tube produces and waste water cross generation biochemical reaction in filler, filler filters waste water simultaneously, waste water is by entering ascending zone after traverse baffle, biochemical reaction is there is in filler, filler filters waste water simultaneously, the mud that lower current area and ascending zone produce sinks to mud district, emitted by the mud discharging valve bottom mud district, water after the process of reflux formula BAF is flowed out by overfalling weir, realizes qualified discharge.
7. the mud that coagulative precipitation tank, advanced oxidation reaction settling basin, reflux formula BAF are discharged is transported outward after concentrating, dewatering.
The invention has the beneficial effects as follows: suit measures to local conditions, capital construction
investmentit is few,
safeguardconvenient, energy consumption is lower, has reasonable treatment effect to waste water, can realize sewage recycling, fully utilize sewage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation in embodiment of the present invention acid out breakdown of emulsion pond.
In Fig. 1: 1. acid out breakdown of emulsion pond, 1-1. acid out breakdown of emulsion pond water inlet pipe, 1-2. whipping appts, 1-3. acid solution is added and pH value TT&C system, 1-4. acid out breakdown of emulsion pond rising pipe.
Fig. 2 is the structural representation of embodiment of the present invention ozone oxidation air flotation pool.
In Fig. 2: 2. ozone oxidation air flotation pool, 2-1. ozone oxidation air flotation pool water inlet pipe, 2-2. ozone oxidation air flotation pool water distributor, 2-3. mixing zone, 2-4. catchment area, 2-5. dregs of fat district, 2-6. ozone oxidation air flotation pool aeration plate, 2-7. gas blower and ozonizer, 2-8. ozone oxidation air flotation pool triphase separator, 2-9. overfalling weir, 2-10. dregs of fat scraper plate, 2-11. crackling receiving tank.
Fig. 3 is the structural representation of embodiment of the present invention coagulative precipitation tank.
In Fig. 3: 3. coagulative precipitation tank, 3-1. is uniformly mixed district, 3-2. settling region, 3-3. wastewater inlet pipe, 3-4. liquid add-on system, 3-5. whipping appts, 3-6. baffle plate, 3-7. triphase separator, 3-8. overfalling weir, 3-9. sediment discharge valve, 3-10. alkali lye liquid adds and pH value TT&C system.
Fig. 4 is the structural representation of embodiment of the present invention advanced oxidation reaction settling basin.
In Fig. 4: 4. advanced oxidation reaction settling basin, 4-1. is intake main, 4-2. sponge iron filling tube, 4-3. radiation formula water distributor, 4-4. advanced oxidation reaction settling basin overfalling weir, 4-5. sponge iron filler, 4-6. sediment discharge valve.
Fig. 5 is the structural representation of embodiment of the present invention reflux formula BAF.
In Fig. 5: 5. reflux formula BAF, 5-1. lower current area, 5-2. ascending zone, 5-3. mud district, 5-4. reflux formula BAF water inlet pipe, 5-5. reflux formula BAF water distributor, 5-6. lower current area filler, 5-7. aeration tube, 5-8. traverse baffle, 5-9. ascending zone filler, 5-10. reflux formula BAF overfalling weir, 5-11. mud discharging valve.
Fig. 6 is the process flow sheet of the embodiment of the present invention.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment
As shown in Fig. 1 ~ Fig. 6, a kind of mechanical blades of the present invention cuts wastewater treatment equipment, comprises wastewater equalization pond, acid out breakdown of emulsion pond 1, ozone oxidation air flotation pool 2, coagulative precipitation tank 3, advanced oxidation reaction settling basin 4, reflux formula BAF 5; Wastewater equalization pond, acid out breakdown of emulsion pond 1, ozone oxidation air flotation pool 2, coagulative precipitation tank 3, advanced oxidation reaction settling basin 4, reflux formula BAF 5 are communicated with successively.
Described wastewater equalization pond comprises water inlet pipe and rising pipe, for regulating water quality and the water yield of waste water.
Be provided with water inlet pipe 1-1 bottom described acid out breakdown of emulsion pond, middle part is provided with whipping appts 1-2, and middle and upper part is provided with acid solution and adds and pH value TT&C system 1-3, and top is provided with rising pipe 1-4.
Described ozone oxidation air flotation pool 2 comprises water inlet pipe 2-1 and the rising pipe for discharging the rear water of process, and described ozone oxidation air flotation pool is followed successively by mixing zone 2-3 and disengaging zone from bottom to up; Described disengaging zone comprises catchment area 2-4 and is positioned at the dregs of fat district 2-5 of catchment area; The bottom of the mixing zone 2-3 of described ozone oxidation air flotation pool is provided with aeration plate 2-6, the top of described aeration plate is provided with water distributor 2-2, described water distributor connects water inlet pipe 2-1, and described aeration plate 2-6 is connected with gas blower outside ozone oxidation air flotation pool and ozonizer by aeration tube; Triphase separator 2-8 is provided with in described disengaging zone, described triphase separator 2-8 comprise flow deflector and be positioned at below flow deflector with flow deflector with the use of triangle guide ring, described triangle guide ring is arranged on the inwall of ozone oxidation air flotation pool, the top of described flow deflector is identical with the shape of disengaging zone, the bottom of described flow deflector is horn-like, and the internal diameter of the bottom of described flow deflector is greater than the internal diameter of triangle guide ring; The top of described disengaging zone outer wall is provided with overfalling weir 2-9, and described overfalling weir 2-9 is connected with rising pipe; Described dregs of fat district 2-5 is laid with dregs of fat scraper plate 2-10 and crackling receiving tank 2-11; When waste water overflows from the bottom up, water enters the bottom of flow deflector together with the dregs of fat by triangle guide ring, and the dregs of fat continue up to enter dregs of fat district 2-5, and water enters catchment area 2-4 by the gap between flow deflector and triangle guide ring; In order to the better effects if of wastewater treatment, described water distributor 2-2 is arranged to concentric circles or cross shape, water distributor has horizontal radiation water outlet; Further, described aeration plate is the pore type aeration plate being evenly provided with micropore.
The rising pipe of described ozone oxidation air flotation pool is communicated with the water inlet pipe 3-3 of coagulative precipitation tank.
Described coagulative precipitation tank 3 comprises and is uniformly mixed district 3-1 and settling region 3-2, be uniformly mixed bottom district and be provided with wastewater inlet pipe 3-3, middle and upper part is provided with liquid add-on system 3-4, alkali lye adds and pH value TT&C system 3-10, is provided with whipping appts 3-5 being uniformly mixed in the middle part of district; Baffle plate 3-6 is provided with in described settling region, the inwall of this baffle plate and coagulative precipitation tank 3 forms the waste water runner entering settling region as waste water, the exit of settling region is provided with triphase separator 3-7, the outlet top of settling region is provided with overfalling weir 3-8, the tapered structure of settling region bottom design, is provided with sediment discharge valve 3-9 bottom settling region.
Described advanced oxidation reaction settling basin comprises into water main 4-1, sponge iron filling tube 4-2, the radiation formula water distributor 4-3 be built in sponge iron filling tube, advanced oxidation reaction settling basin overfalling weir 4-4 and rising pipe.Described sponge iron filling tube 4-2 is made up of stainless steel, radiation formula water distributor 4-3 is provided with in sponge iron filling tube 4-2, radiation formula water distributor is positioned at sponge iron filling tube central authorities, sponge iron filler 4-5 is added around water distributor, water distributor 4-3 connects water inlet main 4-1, and sponge iron filling tube and water distributor have horizontal radiation water outlet.Described advanced oxidation reaction settling basin 4 upper outside is provided with overfalling weir 4-4, and described overfalling weir is connected with rising pipe; The tapered structure of advanced oxidation reaction settling basin bottom design, is provided with sediment discharge valve 4-6 at bottommost.
The sponge iron filler 4-5 added in described sponge iron filling tube is mixed by gac, sponge iron and hydrogen peroxide.
The middle and upper part of described reflux formula BAF 5 is cylindrical, bottom is conical structure, comprises lower current area 5-1, ascending zone 5-2 and mud district 5-3; Described lower current area 5-1 is positioned at the middle part of the cylindrical structural of reflux formula BAF, for cylindrical structural, lower current area top is provided with water inlet pipe 5-4 and water distributor 5-5, filler 5-6 is provided with in the middle part of lower current area, lower current area bottom is provided with aeration tube 5-7, the bottom of described lower current area is provided with traverse baffle 5-8, and the longitudinal section of described traverse baffle 5-8 is horn-like; Described ascending zone 5-2 is positioned at the periphery of lower current area 5-1, the top of traverse baffle, and be provided with filler 5-9 in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir 5-10; Described mud district 5-3 is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district is provided with mud discharging valve 5-11.
The standard water discharge discharge of described reflux formula BAF.
Adopt above-mentioned mechanical blades a to cut method that wastewater treatment equipment carries out wastewater treatment, has following steps:
1. waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe.
2. the water after regulating enters acid out breakdown of emulsion pond 1 by the water inlet pipe 1-1 bottom acid out breakdown of emulsion pond, and acid solution is added and pH value TT&C system 1-3 regulates the pH value of waste water to be 3-4, and the oil in water emulsion in acid condition in waste water is destructurized, becomes suspended state.
3. then waste water enters the middle and lower part of ozone oxidation air flotation pool 2 by water inlet pipe 2-1; The aeration plate 2-6 be positioned at below ozone oxidation air flotation pool water distributor 2-2 produces a large amount of tiny bubble, ozone is oxidized to the macromolecular substance in waste water the small-molecule substance being easy to absorb and adsorb, simultaneously the tiny bubble that produces of aeration plate and the dregs of fat adhere to and form mixture and rise under buoyancy, under the effect of ozone oxidation air flotation pool disengaging zone triphase separator 2-8, mixture rises to dregs of fat district 2-5, under the effect of dregs of fat scraper plate 2-10, the dregs of fat enter crackling receiving tank 2-11 and cleaned outward transport; Water after separating treatment enters ozone oxidation air flotation pool catchment area 2-4 under the effect of ozone oxidation air flotation pool three-phase separation area flow deflector, is entered the water inlet pipe 3-3 of coagulative precipitation tank by overfalling weir 2-9, rising pipe and pipe connecting.
4. the wastewater inlet pipe 3-3 that waste water is uniformly mixed bottom district by coagulative precipitation tank enters coagulative precipitation tank 3, waste water is regulated to be neutral, waste water mixes with the coagulating agent from liquid add-on system 3-4, and utilization is arranged on the whipping appts 3-5 be uniformly mixed in the middle part of district and stirs; Waste water after coagulating enters settling region 3-2, and the triphase separator 3-7 of settling region realizes mud-water separation; Mud sinks to the bottom of coagulative precipitation tank settling region 3-2 under gravity, is discharged by the sediment discharge valve 3-9 of bottom; Waste water enters the water inlet main 4-1 of advanced oxidation reaction settling basin by overfalling weir 3-8, rising pipe and pipe connecting.
5. the water after coagulating sedimentation enters advanced oxidation reaction settling basin 4 by water inlet main 4-1, the radiation formula water distributor 4-3 of advanced oxidation reaction settling basin, hydrogen peroxide in sponge iron filling tube 4-2, sponge iron reactant salt produce hydroxyl radical free radical active in a large number, destroy the structure of Pollutants in Wastewater, the oxidized decomposition of pollutent in waste water, the waste water after oxygenolysis enters the water inlet pipe 5-4 of reflux formula BAF by overfalling weir 4-4, rising pipe and pipe connecting.The throw outs such as mud sink to the bottom of advanced oxidation reaction settling basin 4 under gravity, are discharged by the sediment discharge valve 4-6 of bottom.
6. waste water is by water inlet pipe 5-4, water distributor 5-5 enters the lower current area 5-1 of reflux formula BAF, the air that aeration tube 5-7 produces and waste water cross generation biochemical reaction in filler 5-6, filler filters waste water simultaneously, waste water is by entering ascending zone 5-2 after traverse baffle 5-8, biochemical reaction is there is in filler, filler 5-9 filters waste water simultaneously, the mud that lower current area and ascending zone produce sinks to mud district 5-3, emitted by the mud discharging valve 5-11 bottom mud district, water after the process of reflux formula BAF is flowed out by overfalling weir 5-10, realize qualified discharge.
7. the mud that coagulative precipitation tank 3, advanced oxidation reaction settling basin 4, reflux formula BAF 5 are discharged is transported outward after concentrating, dewatering.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the scope not departing from this invention technological thought.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (2)
1. mechanical blades cuts a wastewater treatment equipment, it is characterized in that: comprise wastewater equalization pond, acid out breakdown of emulsion pond (1), ozone oxidation air flotation pool (2), coagulative precipitation tank (3), advanced oxidation reaction settling basin (4), reflux formula BAF (5); Wastewater equalization pond, acid out breakdown of emulsion pond (1), ozone oxidation air flotation pool (2), coagulative precipitation tank (3), advanced oxidation reaction settling basin (4), reflux formula BAF (5) are communicated with successively;
Described wastewater equalization pond comprises water inlet pipe and rising pipe, for regulating water quality and the water yield of waste water;
Be provided with water inlet pipe (1-1) bottom described acid out breakdown of emulsion pond, middle part is provided with whipping appts (1-2), and middle and upper part is provided with acid solution and adds and pH value TT&C system (1-3), and top is provided with rising pipe (1-4);
Described ozone oxidation air flotation pool (2) comprises water inlet pipe (2-1) and the rising pipe for discharging the rear water of process, and described ozone oxidation air flotation pool is followed successively by mixing zone (2-3) and disengaging zone from bottom to up; Described disengaging zone comprises catchment area (2-4) and is positioned at the dregs of fat district (2-5) of catchment area; The bottom of the mixing zone (2-3) of described ozone oxidation air flotation pool is provided with aeration plate (2-6), the top of described aeration plate is provided with water distributor (2-2), described water distributor connects water inlet pipe (2-1), and described aeration plate (2-6) is connected with gas blower outside ozone oxidation air flotation pool and ozonizer by aeration tube; Triphase separator (2-8) is provided with in described disengaging zone, described triphase separator (2-8) comprise flow deflector and be positioned at below flow deflector with flow deflector with the use of triangle guide ring, described triangle guide ring is arranged on the inwall of ozone oxidation air flotation pool, the top of described flow deflector is identical with the shape of disengaging zone, the bottom of described flow deflector is horn-like, and the internal diameter of the bottom of described flow deflector is greater than the internal diameter of triangle guide ring; The top of described disengaging zone outer wall is provided with overfalling weir (2-9), and described overfalling weir (2-9) is connected with rising pipe; Described dregs of fat district (2-5) is laid with dregs of fat scraper plate (2-10) and crackling receiving tank (2-11); When waste water overflows from the bottom up, water enters the bottom of flow deflector together with the dregs of fat by triangle guide ring, and the dregs of fat continue up to enter dregs of fat district (2-5), and water enters catchment area (2-4) by the gap between flow deflector and triangle guide ring; In order to the better effects if of wastewater treatment, described water distributor (2-2) is arranged to concentric circles or cross shape, water distributor has horizontal radiation water outlet; Further, described aeration plate is the pore type aeration plate being evenly provided with micropore;
The rising pipe of described ozone oxidation air flotation pool is communicated with the water inlet pipe (3-3) of coagulative precipitation tank;
Described coagulative precipitation tank (3) comprises and is uniformly mixed district (3-1) and settling region (3-2), be uniformly mixed bottom district and be provided with wastewater inlet pipe (3-3), middle and upper part is provided with liquid add-on system (3-4) and alkali lye and adds and pH value TT&C system (3-10), is provided with whipping appts (3-5) being uniformly mixed in the middle part of district; Baffle plate (3-6) is provided with in described settling region, the inwall of this baffle plate and coagulative precipitation tank forms the waste water runner entering settling region as waste water, the exit of settling region is provided with triphase separator (3-7), the outlet top of settling region is provided with overfalling weir (3-8), the tapered structure of settling region bottom design, is provided with sediment discharge valve (3-9) bottom settling region;
Described advanced oxidation reaction settling basin comprises into water main (4-1), sponge iron filling tube (4-2), the radiation formula water distributor (4-3) be built in sponge iron filling tube, advanced oxidation reaction settling basin overfalling weir (4-4) and rising pipe; Described sponge iron filling tube (4-2) is made up of stainless steel, radiation formula water distributor (4-3) is provided with in sponge iron filling tube (4-2), radiation formula water distributor is positioned at sponge iron filling tube central authorities, sponge iron filler (4-5) is added around water distributor, water distributor (4-3) connects water inlet main (4-1), and sponge iron filling tube and water distributor have horizontal radiation water outlet; Described advanced oxidation reaction settling basin (4) upper outside is provided with overfalling weir (4-4), and described overfalling weir is connected with rising pipe; The tapered structure of advanced oxidation reaction settling basin bottom design, is provided with sediment discharge valve (4-6) at bottommost;
The sponge iron filler (4-5) added in described sponge iron filling tube is mixed by gac, sponge iron and hydrogen peroxide;
The middle and upper part of described reflux formula BAF (5) is cylindrical, bottom is conical structure, comprises lower current area (5-1), ascending zone (5-2) and mud district (5-3); Described lower current area (5-1) is positioned at the middle part of the cylindrical structural of reflux formula BAF, for cylindrical structural, lower current area top is provided with water inlet pipe (5-4) and water distributor (5-5), filler (5-6) is provided with in the middle part of lower current area, lower current area bottom is provided with aeration tube (5-7), the bottom of described lower current area is provided with traverse baffle (5-8), and the longitudinal section of described traverse baffle (5-8) is horn-like; Described ascending zone (5-2) is positioned at the periphery of lower current area (5-1), the top of traverse baffle, filler (5-9) is provided with in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir (5-10); Described mud district (5-3) is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district is provided with mud discharging valve (5-11);
The standard water discharge discharge of described reflux formula BAF.
2. adopt mechanical blades as claimed in claim 1 to cut the method that wastewater treatment equipment carries out wastewater treatment, there are following steps:
1. waste water enters wastewater equalization pond regulating water quality and the water yield by water inlet pipe;
2. the water after regulating enters acid out breakdown of emulsion pond (1) by the water inlet pipe (1-1) bottom acid out breakdown of emulsion pond, acid solution is added and pH value TT&C system (1-3) regulates the pH value of waste water to be 3-4, oil in water emulsion in acid condition in waste water is destructurized, becomes suspended state;
3. then waste water enters the middle and lower part of ozone oxidation air flotation pool (2) by water inlet pipe (2-1); The aeration plate (2-6) be positioned at below ozone oxidation air flotation pool water distributor produces a large amount of tiny bubble, ozone is oxidized to the macromolecular substance in waste water the small-molecule substance being easy to absorb and adsorb, the tiny bubble that aeration plate produces and the dregs of fat adhere to and form mixture and rise under buoyancy, under the effect of ozone oxidation air flotation pool disengaging zone triphase separator (2-8), mixture rises to dregs of fat district (2-5), under the effect of dregs of fat scraper plate (2-10), the dregs of fat enter crackling receiving tank (2-11) and cleaned outward transport; Water after separating treatment enters ozone oxidation air flotation pool catchment area (2-4) under the effect of ozone oxidation air flotation pool three-phase separation area flow deflector, is entered the water inlet pipe (3-3) of coagulative precipitation tank by overfalling weir (2-9), rising pipe and pipe connecting;
4. the wastewater inlet pipe (3-3) that waste water is uniformly mixed bottom district by coagulative precipitation tank enters coagulative precipitation tank (3), waste water is regulated to be neutral, waste water mixes with the coagulating agent from liquid add-on system (3-4), and utilization is arranged on the whipping appts (3-5) be uniformly mixed in the middle part of district and stirs; Waste water after coagulating enters settling region (3-2), and the triphase separator (3-7) of settling region realizes mud-water separation; Mud sinks to the bottom of coagulative precipitation tank settling region (3-2) under gravity, is discharged by the sediment discharge valve (3-9) of bottom; Waste water enters the water inlet main (4-1) of advanced oxidation reaction settling basin by overfalling weir (3-8), rising pipe and pipe connecting;
5. the water after coagulating sedimentation enters advanced oxidation reaction settling basin (4) by the water inlet main (4-1) of advanced oxidation reaction settling basin, radiation formula water distributor (4-3), hydrogen peroxide in sponge iron filling tube (4-2), sponge iron reactant salt produce hydroxyl radical free radical active in a large number, destroy the structure of Pollutants in Wastewater, the oxidized decomposition of pollutent in waste water, the waste water after oxygenolysis enters the water inlet pipe (5-4) of reflux formula BAF by overfalling weir (4-4), rising pipe and pipe connecting; The throw outs such as mud sink to the bottom of advanced oxidation reaction settling basin (4) under gravity, are discharged by the sediment discharge valve (4-6) of bottom;
6. waste water is by water inlet pipe (5-4), water distributor (5-5) enters the lower current area (5-1) of reflux formula BAF, the air that aeration tube (5-7) produces and waste water cross generation biochemical reaction in filler (5-6), filler filters waste water simultaneously, waste water enters ascending zone (5-2) by after traverse baffle (5-8), biochemical reaction is there is in filler, filler (5-9) filters waste water simultaneously, the mud that lower current area and ascending zone produce sinks to mud district (5-3), emitted by the mud discharging valve (5-11) bottom mud district, water after the process of reflux formula BAF is flowed out by overfalling weir (5-10), realize qualified discharge,
7. the mud that coagulative precipitation tank (3), advanced oxidation reaction settling basin (4), reflux formula BAF (5) are discharged is transported outward after concentrating, dewatering.
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Effective date of registration: 20201109 Address after: 221300 Chahe Town New District, Pizhou City, Xuzhou City, Jiangsu Province Patentee after: Pizhou Borui Investment Management Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |