CN103641276A - Comprehensive treatment method and system for urban landscape water body - Google Patents
Comprehensive treatment method and system for urban landscape water body Download PDFInfo
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- CN103641276A CN103641276A CN201310680465.1A CN201310680465A CN103641276A CN 103641276 A CN103641276 A CN 103641276A CN 201310680465 A CN201310680465 A CN 201310680465A CN 103641276 A CN103641276 A CN 103641276A
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Abstract
The invention discloses a comprehensive treatment method and a comprehensive treatment system for an urban landscape water body. The comprehensive treatment method comprises the following steps: (1), introducing the landscape water body into a lifting pump to be mixed with a coagulant in the lifting pump for reaction flocculation; (2), entering water at an outlet of the lifting pump into a coarse filter to remove large-particle impurities in the water body in the coarse filter; (3), entering water primarily purified by the coarse filter into a precision filter, and holding back algae in a filter material layer by virtue of micro-flocculation, precipitation, adsorption and filtration functions of the filter material layer of the precision filter; and (4), entering outlet water purified by the precision filter into the landscape water body after adding a microbial preparation and a biological algicide. The system comprises a water pump, a gas pump, the coarse filter, the precision filter, an electric valve, a coagulant adding system, a microorganism adding system, a biological algicide adding system and a self-control device. According to the invention, a technical problem that plant nutrient substances of the landscape water body are reduced can be solved by seeking a way of enriching and transferring algae.
Description
Technical field
The present invention relates to field of environment engineering technology, relate in particular to the removal of algae, turbidity material in city appearance water body (landscape lake, Landscape River, landscape pond, fountain sight, the type of breeding fish landscape water body, view fishpond etc.) and the method and system that suppress algae.
Background technology
Along with the development of national economy, the raising of people's material, educational level, people more and more yearn for " small bridge over the flowing stream, the surface of the lake ripples, ichthyornis in groups " wild beauty.But most cities landscape water body is all sealing unhurried current water body, water body self-purification ability is poor, along with the accumulation of landscape water body internal contamination and the lasting input of xenobiotic pollutants, landscape water body is eutrophication gradually, algal bloom, and Dissolved Oxygen in Water concentration acutely rises and falls, thereby cause water quality deterioration, fish and other biological mortality, make landscape water body lose view ornamental value, has a strong impact on the living environment of surrounding resident.
The type of particularly breeding fish landscape water body, a large amount of internal contaminations because fish produce, worsen water quality of landscape water fast, cause landscape water body colourity, turbidity unprecedented soaring, thereby the type landscape water body that makes to breed fish lose ornamental value.
Present landscape water body purification technique is divided into two large class methods according to its feature:
One, closed material internal recycle method, these class methods have chemical method, microbially decontaminate method, ultrasonic purification method, contact oxidation method etc., these class methods are utilized chemical agent compacting algal grown, or decompose and suppress algae, supersonic killing inhibition algae etc. by microorganism, although these class methods can be suppressed the Growth and reproduction of algae the short period of time, but As time goes on, the holophytic nutrition materials such as the nitrogen phosphorus in landscape water body all the time in water, the bottom realizes inner material circulation, all the time the water body of can not moving out, thereby landscape water body eutrophication gradually.Adopt the general water quality of landscape water body of these class methods poor, or later stage operational management cost is very high.
Two, open material outer circulation method, these class methods have wetland method, By Bubble-floating Method, filtration method or other integrated conduct method, the feature of these class methods is that the holophytic nutrition substances such as nitrogen phosphorus in landscape water body move out from water body by variety of way, thereby landscape water body is tending towards gradually and reaches oligotrophication's state.But due to the difference of technique, the difference of each art breading unit efficiencies, there is greatest differences in the front-end investment cost of various treatment processs, operational management cost, operational management difficulty, water quality management difficulty, water quality quality.
In addition, because landscape water body water treatment project is the project that there is no income, excessive front-end investment cost, operational management cost bring huge economic pressures to the manager of landscape water body, meanwhile, the climatic characteristic of the environmental quality of city appearance water body surrounding enviroment soil an inch of land is an inch of gold and China's north and south greatest differences has also significantly limited the treatment process of landscape water body.
Summary of the invention:
The object of this invention is to provide a kind of city appearance water body integrated conduct method and system, to solve, seek a kind of technical problem of cutting down landscape water body holophytic nutrition material by the mode of enrichment, transfer algae.
A kind of city appearance water body integrated conduct method and the system that realize foregoing invention object, it comprises the following steps:
(1), landscape water body is introduced to lift pump, in lift pump and coagulating agent mix, react flocculation; Described coagulating agent is aluminium salt or molysite; Aluminium salt is Tai-Ace S 150, polymerize aluminum chloride, and its concentration is 1.0-10ppm; Molysite is ferrous sulfate, ferric sulfate or iron trichloride;
(2), the water of lift pump outlet enters coarse filter, removes oarse-grained foreign material in water body, its filtering accuracy >=1mm in coarse filter;
(3), through the water of coarse filter rough purification, enter in fine filting machine, micro-flocculation, precipitation, absorption, filtering function through fine filting machine filter material layer, be trapped in algae in filter material layer;
(4), the water outlet of fine filting machine after purifying, enter landscape water body after adding microbial preparation, biological algicide; Microbial preparation is Bacillus subtilus, genus bacillus, nitrobacteria, denitrifying bacterium, sulfuration bacterium, high-activity bio-enzyme or multiple vitamin H, total viable count >=120～15,000,000,000/gram; Described biological algicide is diamines first sulphur triazine preparation.
Realize a kind of city appearance water body total system of foregoing invention object, it comprises water pump, air pump, coarse filter, fine filting machine, motorized valve, coagulant dosage system, microorganism dosing system, biological algicide dosing system and self-con-tained unit; The water sucking mouth of described water pump is connected with coagulant dosage system; The water outlet of described water pump is connected with the water-in of coarse filter; The water outlet of described coarse filter is connected with the water-in of fine filting machine; The water outlet of described fine filting machine is connected with the water inlet pipe of landscape water body; Meanwhile, the water outlet of fine filting machine is connected with biological algicide dosing system with microorganism dosing system; The tracheae of described air pump is connected with the inlet pipe of fine filting machine; The sewage draining exit of described fine filting machine is connected with water shoot; Described coarse filter blow-off pipe, fine filting machine emptying pipe are connected with water shoot; Described fine filting machine can be by the parallel combination of one or more fine filting machines.
Described fine filting machine comprises that housing, purification pool, filtrate district, support system, water distribution system, gas distribution system, the outlet system of purifying waste water, backwashing water water exhaust system form; In described housing, be followed successively by from top to bottom and purify pool, filtrate district and support system; Venting hole is positioned at case top, and blowdown hole is positioned on the sidewall of housing lower part, and weep hole is positioned at housing bottom; Described support system inside comprises water distribution system and gas distribution system; In described purification pool, comprise the outlet system of purifying waste water, backwashing water water exhaust system; Configuration homogeneous heavy coarse media in described filtrate district; Water distribution system is comprised of raw water inlet, former water water inlet pipe, water-distributing device; Described water-distributing device has two kinds of structures, a kind ofly cloth water conduit tube, water distribution branch pipe, consists of; Another kind is comprised of water distribution board and water distribution mouth; Gas distribution system is comprised of inlet mouth, air inlet main pipe, air inlet Zhi Ganguan, air intake branch; Support system has two kinds of structures, and a kind of structure is comprised of graticule mesh, bracing frame, pillar stiffener under graticule mesh, lower filter plate, lower filter plate on graticule mesh, support filtrate, lower filter plate under upper filter plate, upper filter plate; Another kind of structure is by supporting filtrate and bracing frame forms; The described outlet system of purifying waste water is comprised of effluent collection pipe, the rising pipe of purifying waste water; Backwashing water water exhaust system is comprised of effluent collection pipe, backwashing water water shoot.
Under described upper filter plate, on graticule mesh, lower filter plate, under graticule mesh, lower filter plate, the grid gap scope of graticule mesh is: 0.5mm≤graticule mesh gap≤2mm; Described upper filter plate, lower filter plate are slight drag water distribution filter plate.
Described support filtrate adopts 4-8mm or 8-16mm filtrate, and filtrate is heavy filtrate.
The filtrate combination of two or more of described homogeneous heavy coarse media employing 0.25-0.5mm magnetite, 0.5-1mm magnetite, 1-2mm magnetite and 1-2mm quartz sand; Or the filtrate of 0.25-0.5mm magnetite, 0.5-1mm magnetite and 1-2mm magnetite combination; The thickness of homogeneous coarse media is 600-2500mm.
Between fine filting machine inlet pipe and air pump tracheae, motorized valve is set; The top that motorized valve coarse filter is set between fine filting machine sewage backwash pipe and water shoot arranges vent valve.
Advantage of the present invention is as follows:
Adopt method of the present invention to utilize algae to breed rapidly, the holophytic nutrition substance characteristics such as the nitrogen phosphorus in enrichment landscape water body, by fine filting machine filter type fast enriching, transfer algae, from enclosed circulation, change the energy cycle of matter in landscape water body into open cycle, significantly reduce the holophytic nutrition substances content in landscape water body, water quality of landscape water is tending towards and reaches oligotrophication's state; Simultaneously, by fine filting machine filter type, remove the turbidity material in water body, can promote landscape water body transparency, increase water body transparence, promote algae photosynthesis in water body, accelerate the speed of the holophytic nutrition materials such as nitrogen phosphorus in algae reproduction speed and enrichment landscape water body.
Adopt method of the present invention to compare with other method, there is the features such as equipment is simple, effluent quality is outstanding, water conditioning, water quality management maintenance is simple, working cost is cheap, be applicable to the landscape water body of the purification of big area landscape water body, high water quality requirement and superelevation water quality requirement, the purification of view fishpond waterbody.
Accompanying drawing explanation:
Fig. 1 is city appearance water body integrated conduct method of the present invention and device schematic flow sheet;
Fig. 2 is the vertical planning drawing of fine filting machine technical scheme one of the present invention;
Fig. 3 is the gas distribution pipe orthographic plan of fine filting machine technical scheme one of the present invention;
Fig. 4 is the water distribution board orthographic plan of fine filting machine technical scheme one of the present invention;
Fig. 5 is the vertical planning drawing of fine filting machine technical scheme two of the present invention;
Fig. 6 is the water distributor orthographic plan of fine filting machine technical scheme two of the present invention;
Fig. 7 is the air distribution plate orthographic plan of fine filting machine technical scheme two of the present invention.
In figure, number: 101 is housing, 102 is inspection window, 103 is venting hole, 104 is blowdown hole, 105 is weep hole, 201 for purifying pool and sewage backwash district, 301Wei filtrate district, 401 is upper filter plate, 402 is graticule mesh under upper filter plate, 403 for supporting filtrate, 404 is graticule mesh on lower filter plate, 405 is lower filter plate, 406 is graticule mesh under lower filter plate, 407 is supporting bracket, 408 is support post, 409 is supporting bracket, 410 for supporting filtrate, 501 is raw water inlet, 502 is former water water inlet pipe, 503 is water distribution board, 504 is water distributing pore, 505 is former water water inlet Zhi Ganguan, 506 is former water water inlet pipe, 601 is inlet mouth, 602 is air inlet main pipe, 603 is air inlet Zhi Ganguan, 604 is air intake branch, 701 is rising pipe, 702 is the rising pipe of purifying waste water, 801 is back flushing water shoot.
Embodiment:
Below the present invention is specifically described:
The present invention adopts with the following method by enrichment, the mode that shifts algae and cuts down landscape water body holophytic nutrition material, landscape water body is tending towards and reaches oligotrophication's state or reach the requirement of national Environmental Quality Standard of Surface Water GB3838-2002.
In water cycle process, first, landscape water body is introduced to lift pump, dosing coagulant, landscape water body, after lift pump supercharging coagulation, enters coarse filter.In coarse filter, remove macrobead foreign material more than 1mm in landscape water body.
Landscape water, after coarse filter purifies, enters the former water water inlet system of fine filting machine, then enters fine filting machine water distribution system, and former water, after fine filting machine water distribution system is evenly uniformly distributed, enters filtrate district by support system.In filtrate district, the micro-flocculation on every filtrate of algae, turbidity material, absorption, precipitation and held back by filtrate in landscape water body, the algae in water, turbidity material are removed.Landscape water body is through the speed≤45m/h of filtrate, the thickness≤2500mm in 600mm≤filtrate district.The clearance of algae reaches more than 99%, and turbidity material clearance reaches more than 98%.
Water after filtrate district purifies enters and purifies pool, then through rising pipe, collects, and by purifying waste water, rising pipe flows out.In the rising pipe of purifying waste water, add after microbial preparation and biological algicide the inflow landscape water body of purifying waste water.
In landscape water body, but biological algicide kills mud tongue in landscape water body, liver moss, unarmored dinoflagellate, blue-green algae, silk algae etc.; Biotechnological formulation decomposes organic waste in water body as residual bait, ight soil, organic debris, dead algae etc., organic waste is cleared up into small organic molecule and the inorganics of algal grown breeding, for the algae-bacteria symbiotic system in landscape water body provides matter and energy; Simultaneously, because the landscape water body after purifying has higher visibility meter, the illuminance of higher sunlight significantly promotes the photosynthesis of algae, impels algae in landscape water body with speed Growth and reproduction faster, the holophytic nutrition material in fast enriching landscape water body.
Repeatedly circulation through landscape water body purification system, holophytic nutrition material in landscape water body is by algae enrichment and transfer, its concentration is more and more lower, and water quality is tending towards gradually and reaches oligotrophication's state or reach the requirement of national Environmental Quality Standard of Surface Water GB3838-2002.
In actually operating, when water quality of landscape water reaches user's water quality demand, purification system can quit work.
When fine filting machine filters, the algae in landscape water body and turbidity material are retained down by filtrate district filter material layer gradually, and through after water cycle repeatedly, filter material layer is more and more dirtier, and now fine filting machine needs back flushing.
During fine filting machine back flushing, open the valve on blow-off pipe, close the valve on rising pipe, fine filting machine enters back flushing state.In fine filting machine backwash process, flooding quantity when fine filting machine still keeps filtering.First, booster air pump, by inlet system, input pressurized gas, pressurized gas is after the even gas distribution of gas distribution pipe of water distribution system, through support system, enter filtrate district, filtrate in filtrate district starts to expand and back flushing, and the sewage of back flushing and pressurized gas enter rising pipe and sewage backwash pipe through sewage backwash district, then enter drainage.When fine filting machine air-water backwashing is after 4-15 minute, stop air pump air feed, air-water backwashing finishes; Now enter water rinse state, after 4-15 minute, after the sewage in filtrate drains substantially, back flushing finishes.Now, open the rising pipe valve of purifying waste water, close sewage backwash tube valve, fine filting machine formally enters filtration condition.
Referring to Fig. 1, for system of the present invention forms and method flow diagram.
A city appearance water body integrated conduct method, it comprises the following steps:
(1), landscape water body is introduced to lift pump, in lift pump and coagulating agent mix, react flocculation; Described coagulating agent is aluminium salt or molysite; Aluminium salt is Tai-Ace S 150, polymerize aluminum chloride, and its concentration is 1.0-10ppm; Molysite is ferrous sulfate, ferric sulfate or iron trichloride;
(2), the water of lift pump outlet enters coarse filter, removes oarse-grained foreign material in water body, its filtering accuracy >=1mm in coarse filter;
(3), through the water of coarse filter rough purification, enter in fine filting machine, micro-flocculation, precipitation, absorption, filtering function through fine filting machine filter material layer, be trapped in algae in filter material layer;
(4), the water outlet of fine filting machine after purifying, enter landscape water body after adding microbial preparation, biological algicide; Microbial preparation is Bacillus subtilus, genus bacillus, nitrobacteria, denitrifying bacterium, sulfuration bacterium, high-activity bio-enzyme or multiple vitamin H, total viable count >=120～15,000,000,000/gram; Described biological algicide is diamines first sulphur triazine preparation.
Equally referring to Fig. 1, a kind of city appearance water body total system, it comprises water pump, air pump, coarse filter, fine filting machine, motorized valve, coagulant dosage system, microorganism dosing system, biological algicide dosing system and self-con-tained unit; The water sucking mouth of described water pump is connected with coagulant dosage system; The water outlet of described water pump is connected with the water-in of coarse filter; The water outlet of described coarse filter is connected with the water-in of fine filting machine; The water outlet of described fine filting machine is connected with the water inlet pipe of landscape water body; Meanwhile, the water outlet of fine filting machine is connected with biological algicide dosing system with microorganism dosing system; The tracheae of described air pump is connected with the inlet pipe of fine filting machine; The sewage draining exit of described fine filting machine is connected with water shoot; Described coarse filter blow-off pipe, fine filting machine emptying pipe are connected with water shoot; Described fine filting machine can be by the parallel combination of one or more fine filting machines.
Embodiment
Below in conjunction with accompanying drawing, fine filting machine principle of work of the present invention is described as follows:
Technical scheme one, referring to Fig. 2,3,4.
Fine filting machine of the present invention, comprises that housing, purification pool (You Cheng sewage backwash district), filtrate district, support system, water distribution system, gas distribution system, the outlet system of purifying waste water, backwashing water water exhaust system form.Homogeneous heavy coarse media upward flow filtering equipment is followed successively by from top to bottom and purifies pool and sewage backwash district 201, filtrate district 301, support system; Described support system inside comprises water distribution system and gas distribution system; In described purification pool, comprise the outlet system of purifying waste water, backwashing water water exhaust system; Configuration homogeneous heavy coarse media in described filtrate district.
Filtered water system: former water enters former water water inlet pipe 502 through raw water inlet 501, then enter the below of water distribution board 503, after water distributing pore 504 uniform water distributions, former water enters the top of water distribution board 503. on water distribution board 503, dispose more than 3 water distributing pores 504.Former water above water distribution board 503, after water distribution uniformity inside lateral, then step by step by graticule mesh 404 on graticule mesh 406, lower filter plate 405, lower filter plate under supporting bracket 407, lower filter plate, support graticule mesh 402, upper filter plate 401 under filtrate 403, upper filter plate.Support the conventional batching of filtrate and adopt 4-8mm, 8-16mm magnetite.Under lower filter plate, on graticule mesh 406, lower filter plate, under graticule mesh 404, upper filter plate, the conventional specification of graticule mesh 402 is: 0.5mm≤graticule mesh gap≤2mm.Lower filter plate 405, upper filter plate 401 are slight drag water distribution filter plate.Former water enters after filtrate district 301 homogeneous heavy filtrates, turbidity material in former water and algae are progressively purified after flocculating, precipitate, adsorb, hold back in homogeneous heavy filtrate, and the water after purification enters and purifies pool, after rising pipe 701 collects, by purifying waste water, rising pipe 702 flows out.The conventional batching of homogeneous heavy filtrate adopts the filtrate combination of 0.25-0.5mm magnetite, 0.5-1mm magnetite, 1-2mm magnetite, 1-2mm quartz sand; Or the filtrate combination of 0.25-0.5mm magnetite, 0.5-1mm magnetite, 1-2mm magnetite.The conventional thickness of homogeneous heavy filtrate is 600-2500mm.
Backwash water system: adopt former water backwashing during the back flushing of homogeneous heavy coarse media upward flow filtering equipment.Former water enters former water water inlet pipe 502 through raw water inlet 501, then enters the below of water distribution board 503, and after water distributing pore 504 uniform water distributions, former water enters the top of water distribution board 503.Former water is above water distribution board 503, after water distribution uniformity inside lateral, then step by step by after graticule mesh 402, upper filter plate 401 under graticule mesh 404, support filtrate 403, upper filter plate on graticule mesh 406, lower filter plate 405, lower filter plate under supporting bracket 407, lower filter plate, former water enters 301 pairs, filtrate district homogeneous heavy filtrate and carries out back flushing, the water rinsing after filtrate enters sewage backwash district 201, after rising pipe 701 collects, by 801 discharges of back flushing water shoot.
Back flushing air system: pressurized air enters in air inlet main pipe 602 through inlet mouth 601, after air inlet Zhi Ganguan 603 uniform blastings, enter air intake branch 604, the qi-emitting hole of air driven pump air intake branch 604 is divided into after some small bubbles, step by step by supporting bracket 407, graticule mesh 406 under lower filter plate, lower filter plate 405, graticule mesh 404 on lower filter plate, support filtrate 403, under upper filter plate, graticule mesh 402, upper filter plate 401 enters filtrate district 301, bubble rises in homogeneous heavy filter material layer, expand, break, impel the lifting that makes progress of homogeneous heavy filtrate, and rolling up and down, wash by rubbing with the hands.Air enters behind backwashing sewage water district 201, and part air is got rid of by the venting port 103 of housing 101 tops, and part air is discharged by rising pipe 701, back flushing water shoot 801 with current.
Back flushing generally comprises following steps:
The first step: gas/water backwashing: backwashing water comes from former water.During back flushing, former water, after topping-up pump supercharging, enters filtrate district by water distribution system, support system.Pressurized air also enters filtrate district by gas distribution system, support system.The homogeneous heavy filtrate in filtrate district, under the acting in conjunction of gas/water, expands, rolls and wash by rubbing with the hands up and down, and the foreign material on filtrate and filtrate gap enter sewage backwash district with current, and after rising pipe collects, by sewage backwash pipe, get rid of.
Second step: water rinse: further the homogeneous heavy filtrate in filtrate district is carried out to rinsing by former water, to discharge sewage and the bubble in homogeneous heavy filtrate.After back flushing finishes, can reenter filter.
In technical scheme two, referring to Fig. 5,6,7.
Fine filting machine of the present invention, comprises that housing, purification pool (You Cheng sewage backwash district), filtrate district, support system, water distribution system, gas distribution system, the outlet system of purifying waste water, backwashing water water exhaust system form.Homogeneous heavy coarse media upward flow filtering equipment is followed successively by from top to bottom and purifies pool and sewage backwash district 201, filtrate district 301, support system; Described support system inside comprises water distribution system and gas distribution system; In described purification pool, comprise the outlet system of purifying waste water, backwashing water water exhaust system; Configuration homogeneous heavy coarse media in described filtrate district.
Filtered water system: former water enters former water water inlet main pipe 502 through raw water inlet 501, then enters former water water inlet primary branch 505, and after the preliminary water distribution of former water water inlet primary branch 505, former water enters former water water inlet pipe 506.Former water stitches after water distribution uniformity by the water distribution on former water water inlet pipe 506, and former water enters filtrate district 301 by supporting filtrate 410.In filtrate district 301, the turbidity material in former water and algae are progressively purified after flocculating, precipitate, adsorb, hold back in homogeneous heavy filtrate, and the water after purification enters and purifies pool, and after rising pipe 701 collects, by purifying waste water, rising pipe 702 flows out.The routine batching that supports filtrate 410 is 4-8mm, 8-16mm magnetite, and the conventional thickness that supports filtrate 410 is as the criterion to cover former water water inlet primary branch 505.The conventional batching of homogeneous heavy filtrate adopts the filtrate combination of 0.25-0.5mm magnetite, 0.5-1mm magnetite, 1-2mm magnetite, 1-2mm quartz sand; Or the filtrate combination of 0.25-0.5mm magnetite, 0.5-1mm magnetite, 1-2mm magnetite.The conventional thickness of homogeneous heavy filtrate is 600-2500mm.
Backwash water system: adopt former water backwashing during the back flushing of homogeneous heavy coarse media upward flow filtering equipment.Former water enters former water water inlet main pipe 502 through raw water inlet 501, then enters former water water inlet primary branch 505, and after the preliminary water distribution of former water water inlet primary branch 505, former water enters former water water inlet pipe 506.Former water stitches after water distribution uniformity by the water distribution on former water water inlet pipe 506, and former water enters filtrate district 301 by supporting filtrate 410.In filtrate district 301, former water carries out back flushing to homogeneous heavy filtrate, and the water rinsing after filtrate enters sewage backwash district 201, after rising pipe 701 collects, by 801 discharges of back flushing water shoot.
Back flushing air system: pressurized air enters in air inlet main pipe 602 through inlet mouth 601, after air inlet Zhi Ganguan 603 uniform blastings, enter air intake branch 604, pressurized air is divided into after some small bubbles through the qi-emitting hole of air intake branch 604, enters and supports in filtrate 410; In supporting filtrate 410, small bubbles are divided into some less small bubbles again, then enter homogeneous heavy filter material layer; In homogeneous heavy filter material layer, small bubbles rise, expand, break, and impel the lifting that makes progress of homogeneous heavy filtrate, and roll up and down, wash by rubbing with the hands.Air enters behind backwashing sewage water district 201, and part air is got rid of by the venting port 103 of housing 101 tops, and part air is discharged by rising pipe 701, back flushing water shoot 801 with current.
Back flushing generally comprises following steps:
The first step: gas/water backwashing: backwashing water comes from former water.During back flushing, former water, after topping-up pump supercharging, enters filtrate district by water distribution system, support system.Pressurized air also enters filtrate district by gas distribution system, support system.The homogeneous heavy filtrate in filtrate district, under the acting in conjunction of gas/water, expands, rolls and wash by rubbing with the hands up and down, and the foreign material on filtrate and filtrate gap enter sewage backwash district with current, and after rising pipe collects, by sewage backwash pipe, get rid of.
Second step: water rinse: further the homogeneous heavy filtrate in filtrate district is carried out to rinsing by former water, to discharge sewage and the bubble in homogeneous heavy filtrate.After back flushing finishes, can reenter filter.
Claims (9)
1. a city appearance water body integrated conduct method, it comprises the following steps:
(1), landscape water body is introduced to lift pump, in lift pump and coagulating agent mix, react flocculation; Described coagulating agent is aluminium salt or molysite; Aluminium salt is Tai-Ace S 150, polymerize aluminum chloride, and its concentration is 1.0-10ppm; Molysite is ferrous sulfate, ferric sulfate or iron trichloride;
(2), the water of lift pump outlet enters coarse filter, removes oarse-grained foreign material in water body, its filtering accuracy >=1mm in coarse filter;
(3), through the water of coarse filter rough purification, enter in fine filting machine, micro-flocculation, precipitation, absorption, filtering function through fine filting machine filter material layer, be trapped in algae in filter material layer;
(4), the water outlet of fine filting machine after purifying, enter landscape water body after adding microbial preparation, biological algicide; Microbial preparation is Bacillus subtilus, genus bacillus, nitrobacteria, denitrifying bacterium, sulfuration bacterium, high-activity bio-enzyme or multiple vitamin H, total viable count >=120～15,000,000,000/gram; Described biological algicide is diamines first sulphur triazine preparation.
2. a city appearance water body total system, is characterized in that, it comprises water pump, air pump, coarse filter, fine filting machine, motorized valve, coagulant dosage system, microorganism dosing system, biological algicide dosing system and self-con-tained unit; The water sucking mouth of described water pump is connected with coagulant dosage system; The water outlet of described water pump is connected with the water-in of coarse filter; The water outlet of described coarse filter is connected with the water-in of fine filting machine; The water outlet of described fine filting machine is connected with the water inlet pipe of landscape water body; Meanwhile, the water outlet of fine filting machine is connected with biological algicide dosing system with microorganism dosing system; The tracheae of described air pump is connected with the inlet pipe of fine filting machine; The sewage draining exit of described fine filting machine is connected with water shoot; Described coarse filter blow-off pipe, fine filting machine emptying pipe are connected with water shoot; Described fine filting machine can be by the parallel combination of one or more fine filting machines.
3. a kind of city appearance water body total system according to claim 2, it is characterized in that, described fine filting machine comprises that housing, purification pool, filtrate district, support system, water distribution system, gas distribution system, the outlet system of purifying waste water, backwashing water water exhaust system form; In described housing, be followed successively by from top to bottom and purify pool, filtrate district and support system; Venting hole is positioned at case top, and blowdown hole is positioned on the sidewall of housing lower part, and weep hole is positioned at housing bottom; Described support system inside comprises water distribution system and gas distribution system; In described purification pool, comprise the outlet system of purifying waste water, backwashing water water exhaust system; Configuration homogeneous heavy coarse media in described filtrate district; Water distribution system is comprised of raw water inlet, former water water inlet pipe, water-distributing device; Described water-distributing device has two kinds of structures, a kind ofly cloth water conduit tube, water distribution branch pipe, consists of; Another kind is comprised of water distribution board and water distribution mouth; Gas distribution system is comprised of inlet mouth, air inlet main pipe, air inlet Zhi Ganguan, air intake branch; Support system has two kinds of structures, and a kind of structure is comprised of graticule mesh, bracing frame, pillar stiffener under graticule mesh, lower filter plate, lower filter plate on graticule mesh, support filtrate, lower filter plate under upper filter plate, upper filter plate; Another kind of structure is by supporting filtrate and bracing frame forms; The described outlet system of purifying waste water is comprised of effluent collection pipe, the rising pipe of purifying waste water; Backwashing water water exhaust system is comprised of effluent collection pipe, backwashing water water shoot.
4. a kind of city appearance water body total system according to claim 3, is characterized in that, under described upper filter plate, on graticule mesh, lower filter plate, under graticule mesh, lower filter plate, the grid gap scope of graticule mesh is: 0.5mm≤graticule mesh gap≤2mm; Described upper filter plate, lower filter plate are slight drag water distribution filter plate.
5. a kind of city appearance water body total system according to claim 3, is characterized in that, supports filtrate and adopts 4-8mm or 8-16mm filtrate, and filtrate is heavy filtrate.
6. a kind of city appearance water body total system according to claim 3, it is characterized in that the filtrate combination of two or more of described homogeneous heavy coarse media employing 0.25-0.5mm magnetite, 0.5-1mm magnetite, 1-2mm magnetite and 1-2mm quartz sand; Or the filtrate of 0.25-0.5mm magnetite, 0.5-1mm magnetite and 1-2mm magnetite combination; The thickness of homogeneous coarse media is 600-2500mm.
7. a kind of city appearance water body total system according to claim 3, is characterized in that, between fine filting machine inlet pipe and air pump tracheae, motorized valve is set; Between fine filting machine sewage backwash pipe and water shoot, motorized valve is set.
8. claim 3 is stated a kind of city appearance water body total system, it is characterized in that, the housing of fine filting machine is tank body or pond; The material in tank body or pond is a kind of in glass reinforced plastic, plastics, concrete or steel.
9. a kind of city appearance water body total system according to claim 2, is characterized in that, the top of coarse filter arranges vent valve.
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| CN115517222A (en) * | 2021-12-31 | 2022-12-27 | 山东东山新驿煤矿有限公司 | Diversified filtering system and method for landscape pool |
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