CN104609676A - Device for quickly improving water quality of urban water body - Google Patents
Device for quickly improving water quality of urban water body Download PDFInfo
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- CN104609676A CN104609676A CN201510078947.9A CN201510078947A CN104609676A CN 104609676 A CN104609676 A CN 104609676A CN 201510078947 A CN201510078947 A CN 201510078947A CN 104609676 A CN104609676 A CN 104609676A
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Abstract
The invention discloses a device for quickly improving the water quality of an urban water body. The device comprises a coagulation reactor, an inclined tube sedimentation tank, a laminating filter and a biological active carbon tank, wherein the coagulation reactor is connected with a raw water inlet tube, so that suspended matter coagulation, macromolecular organic substance coagulation and adsorption for a phosphor element in water are performed on wastewater to form a polluted flocculating constituent; the inclined tube sedimentation tank is connected with a water outlet of the coagulation reactor, so that solid-liquid separation of the polluted flocculating constituent is formed in the coagulation reactor; the laminating filter is connected with a water outlet of the inclined tube sedimentation tank, so that fine suspended substances which are not separated in the inclined tube sedimentation tank are held; the biological active carbon tank is connected with a water outlet of the laminating filter for reducing residual organic substances and the nitrogen element by utilizing the adsorption effect of the active carbon and the microbial metabolism effect; the water outlet of the laminating filter is connected with a landscape water body. The device can be used for quickly improving the water quality of the urban water body, is free of interferences of environmental factor, high in automation degree, low in treatment cost and capable of achieving a purpose of improving the water quality of the landscape water body within a circulating period. The device can realize a skid-mounted design, so that the utilization rate is greatly increased.
Description
Technical field
The invention belongs to technical field of waste water processing, relate to city appearance water body water pollutant and control, the particularly quick improving device of a kind of urban water-body water quality.
Background technology
In recent years, along with the fast development of economy, sewage treatment project comparatively urban development speed is backwardness relatively, and water pollution problems highlights day by day, especially has the rivers and lakes of landscape function, and due to its poor fluidity, self-purification capacity is low, causes body eutrophication serious.Body eutrophication refers to nitrogen phosphorus etc. nutritive substance is excessive and enters in natural water body, and the plant plankton hypertrophy such as algae in the water caused, and then cause dissolved oxygen in water body to decline, hydrobiont mortality, a series of phenomenon that water ecological environment is worsened of degradation under sensory properties.
Landscape water body, by the restriction of the practical problems such as its construction problem, view requirement, has a lot of sewage disposal technology all can not effectively to implement, mostly adopts restoration of the ecosystem.In recent years, biological floating bed technology is fast-developing, it mainly relies on the cleaning action of waterplant in floating bed, traditional biological floating bed be become different shape by the buoyant combination of materials of tool, carrying waterplant, utilizes the Eutrophication materials such as the Root Absorption Water phosphorus of waterplant prosperity, and simultaneously huge root system provides the living environment depended on for microorganism, thus purify water, improve water body self-purification ability.Research and practice shows, in eutrophication water repair process, biological floating bedly can repair water ecology to a certain extent.But, biological floating bed technology also has its intrinsic defect: the plant be planted in floating bed is fixed in soil more, and buoyancy material and soil are by plant and water body isolation, and the water yield of root system of plant contact is few, and hydraulic detention time is longer, root system effect is restricted greatly; Plant can only absorb the nitrogen phosphorus in water, can not be transformed and be discharged in air, needs timing harvesting, complex operation; And plant is also an important limiting factor in the decline that non-acoustic detection saves.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide the quick improving device of a kind of urban water-body water quality, the means such as physical chemistry, biological chemistry are utilized effectively to cut down nutritive salt such as the organic pollutant in urban water-body and N, P, to improve the water quality of urban water-body, for city resident provides good landscape aquatic ecological environment.
To achieve these goals, the technical solution used in the present invention is:
The quick improving device of a kind of urban water-body water quality, comprising:
Coagulation reactor I, connects former water water inlet pipe, and waste water completes the absorption of phosphoric in suspended substance cohesion, larger molecular organics coagulation and water wherein, is formed and pollutes flco;
Tube settler II, connects the water outlet of coagulation reactor I, and waste water carries out the solid-liquid separation of the pollution flco formed in coagulation reactor I wherein;
Laminated filter III, connects the water outlet of tube settler II, retains the fine suspension failing to be separated in tube settler II;
Biological activated carbon tank IV, connects the water outlet of laminated filter III, and utilize adsorption and the microbial metabolism effect of gac, realize the reduction of remaining organism and nitrogen element wherein, the water outlet of biological activated carbon tank IV is connected with landscape water body.
Preferably, the present invention also can comprise intermediate water tank V is connected coagulation reactor I medicine system VII with by dosing pipe, and laminated filter III filters a rear water outlet part and enters medicine system VII by pipeline, and all the other water outlets enter biological activated carbon tank IV; A process water part for bioactive charcoal tank IV enters intermediate water tank V, and all the other enter landscape water body, and the sludge outlet of described tube settler II connects sludge treating system VI,
Described medicine system VII is divided into polymerize aluminum chloride mixing adding equipment and polyacrylamide mixing adding equipment, and wherein polyacrylamide adding equipment connects coagulation reactor I and sludge treating system VI simultaneously.
Described sludge treating system VI is with folded spiral shell formula sludge dewatering equipment for core, and processing power is 0.5m
3/ h.
Preferably, the present invention also can comprise the automatic control system VIII run for all devices in control device, and wherein automatic control system VIII is connected with such as lower component:
Be set in turn in the water sprayer 1 on described former water water inlet pipe and line mixer 2, an entrance of line mixer 2 and the outlet of water sprayer 1, another entrance connects medicine system VII, and the outlet of line mixer 2 is connected to coagulation reactor I;
Be set in turn in the force (forcing) pump 3 between described tube settler II and laminated filter III on pipeline, fax tensimeter 1 and motorized valve group one;
Be arranged at the fax tensimeter group of described laminated filter III end;
Be set in turn in the motorized valve group two between described laminated filter III and medicine system VII on pipeline and motorized valve 5 14;
Be arranged at the motorized valve 6 11 on described biological activated carbon tank IV outlet pipeline;
And the ultrasonic level gage 12 be arranged on described intermediate water tank V and be arranged at intermediate water tank V and laminated filter III export between backwashing pump 13 on pipeline;
Described laminated filter III is made up of two filtering unit parallel connections, filtering accuracy is 1 ~ 3 μm, described motorized valve group one comprises the motorized valve 1 and motorized valve 26 that are separately positioned on two filtering unit entrances, described fax tensimeter group comprises the fax tensimeter 27 and fax tensimeter 38 that are separately positioned on two filtering unit ends, and described motorized valve group two comprises the motorized valve 39 and motorized valve 4 10 that are separately positioned on two filtration unit outlet;
Described motorized valve 1, motorized valve 26, the switch of motorized valve 39 and motorized valve 4 10 is controlled with the pressure reduction of fax tensimeter 1 by fax tensimeter 27 and fax tensimeter 38, and the running of described backwashing pump 13 and motorized valve 1, motorized valve 26, motorized valve 39 and motorized valve 4 10 and fax tensimeter 27 and fax tensimeter 38 realize coordinated signals with fax tensimeter 1: when the pressure reduction of fax tensimeter 27 and fax tensimeter 1 is more than 0.3MPa, automatic control system VIII sends instruction and closes motorized valve 1 and motorized valve 39, open motorized valve 26 and motorized valve 4 10 simultaneously, or when the pressure reduction of fax tensimeter 28 and fax tensimeter 1 is more than 0.3MPa, automatic control system VIII sends instruction and closes motorized valve 26 and motorized valve 4 10, opens motorized valve 1 and motorized valve 39 simultaneously, meanwhile, automatic control system VIII sends instruction unpack backwashing pump 13 and carries out backwash to the filtering unit blocked, time remaining 3min, and the filtering unit after backwash enters stand-by state.
Described automatic control system VIII controls the keying of motorized valve 6 11, to ensure that in intermediate water tank, water storage reaches 1m according to the monitoring data of ultrasonic level gage 12
3, meet the needs of back flushing laminated filter III.
Described water sprayer 1 increases dissolved oxygen by mixing with water in air intake water, and for subsequent bio activated carbon treatment technique provides prerequisite, the gas-water ratio of its inspiratory capacity and water inlet is 2:1.
In described coagulation reactor I, hydraulic detention time is 20min, GT value is 20000 ~ 25000, and flocculation agent used is polymerize aluminum chloride and cationic polyacrylamide; Coagulation reactor top is provided with bubble release district, residence time 3min.
The charcoal bed thickness of described biological activated carbon tank IV is 1500mm, and empty bed filtering velocity is 12 ~ 18m/s, and granularity of activated carbon is 40 ~ 60 orders.
Compared with prior art, the present invention can improve urban water-body water quality fast, not by the such environmental effects such as season, weather; And plant automation degree is high, easy and simple to handle, without the need to staff on duty; Processing cost is low; The treatment unit quantity adapted to it can be prepared, to reach the target that loop cycle Study of Platycladus orientalis-Robinia pseudoacacia water quality improves according to urban water-body scale; Apparatus of the present invention can realize sledge-borne type design, and utilization ratio of device can significantly improve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with drawings and Examples.
As shown in Figure 1, the quick improving device of a kind of urban water-body water quality, specifically comprise the coagulation reactor I connecing former water water inlet pipe, its water outlet access tube settler II, the precipitation water going out tube settler II enters laminated filter III by lift pump pressurization, laminated filter III filters a rear water outlet part and enters medicine system VII by pipeline, all the other all enter biological activated carbon tank IV, medicament is dropped into coagulation reactor I by dosing pipe by medicine system VII, a process water part for bioactive charcoal tank IV enters intermediate water tank V, and all the other all enter landscape water body; The bottom of tube settler II sinks mud and drains into sludge treating system VI, wherein, medicine system VII is divided into polymerize aluminum chloride mixing adding equipment and polyacrylamide mixing adding equipment, wherein polyacrylamide adding equipment connects coagulation reactor I and sludge treating system VI simultaneously, and in device, all devices runs and controlled by automatic control system VIII.
Automatic control system VIII is connected with such as lower component:
Be set in turn in the water sprayer 1 on former water water inlet pipe and line mixer 2, an entrance of line mixer 2 and the outlet of water sprayer 1, another entrance connects medicine system VII, and the outlet of line mixer 2 is connected to coagulation reactor I;
Be set in turn in the force (forcing) pump 3 between tube settler II and laminated filter III on pipeline, fax tensimeter 1 and motorized valve group one;
Be arranged at the fax tensimeter group of laminated filter III end;
Be set in turn in the motorized valve group two between laminated filter III and medicine system VII on pipeline and motorized valve 5 14;
Be arranged at the motorized valve 6 11 on biological activated carbon tank IV outlet pipeline;
And the ultrasonic level gage 12 be arranged on intermediate water tank V and be arranged at intermediate water tank V and laminated filter III export between backwashing pump 13 on pipeline.
And laminated filter III is made up of two filtering unit parallel connections, for subsequent use each other, filtering accuracy is 1 ~ 3 μm.Now, motorized valve group one comprises the motorized valve 1 and motorized valve 26 that are separately positioned on two filtering unit entrances, fax tensimeter group comprises the fax tensimeter 27 and fax tensimeter 38 that are separately positioned on two filtering unit ends, and motorized valve group two comprises the motorized valve 39 and motorized valve 4 10 that are separately positioned on two filtration unit outlet;
Motorized valve 1, motorized valve 26, the switch of motorized valve 39 and motorized valve 4 10 is controlled with the pressure reduction of fax tensimeter 1 by fax tensimeter 27 and fax tensimeter 38, and the running of backwashing pump 13 and motorized valve 1, motorized valve 26, motorized valve 39 and motorized valve 4 10 and fax tensimeter 27 and fax tensimeter 38 realize coordinated signals with fax tensimeter 1: when the pressure reduction of fax tensimeter 27 and fax tensimeter 1 is more than 0.3MPa, automatic control system VIII sends instruction and closes motorized valve 1 and motorized valve 39, open motorized valve 26 and motorized valve 4 10 simultaneously, or when the pressure reduction of fax tensimeter 28 and fax tensimeter 1 is more than 0.3MPa, automatic control system VIII sends instruction and closes motorized valve 26 and motorized valve 4 10, opens motorized valve 1 and motorized valve 39 simultaneously, meanwhile, automatic control system VIII sends instruction unpack backwashing pump 13 and carries out backwash to the filtering unit blocked, time remaining 3min, and the filtering unit after backwash enters stand-by state.
Intermediate water tank V volume is 1m
3or 1m
3above, automatic control system VIII controls the keying of motorized valve 6 11, to ensure that in intermediate water tank, water storage reaches 1m according to the monitoring data of ultrasonic level gage 12
3, meet the needs of back flushing laminated filter III.
The operating procedure of the quick improving device of a kind of urban water-body of the present invention water quality is as follows:
Step one, prepares flocculation agent, coagulant aids in medicine system VII, and flocculation agent is polymerize aluminum chloride, and preparation mass concentration is 10%; Coagulant aids is polyacrylamide, and preparation mass concentration is 3 ‰, by the coagulation beaker experiments determination added amount of chemical to former water water sample.Medicine system VII is divided into polymerize aluminum chloride mixing adding equipment and polyacrylamide mixing adding equipment, and wherein polyacrylamide adding equipment connects coagulation reactor I and sludge treating system VI simultaneously.
Step 2, sends the pending water source of urban water-body into water sprayer 1 by lift pump, relies on suction function to make air dissolve in water, and increasing its dissolved oxygen for follow-up BAC process provides oxygen, and the gas-water ratio of its inspiratory capacity and water inlet is 2:1; Subsequently, polymerize aluminum chloride mixing adding equipment adds the flocculation agent (dry weight basis with polymerize aluminum chloride) of 50ppm in water, and medicament and pending water are fully reacted in line mixer 2.
Step 3, mixed waste water enters the bubble release district at coagulation reactor I top, and stop 3min to eliminate the impact of undissolved air on subsequent reactions, the coagulant aids that the adding equipment of polyacrylamide mixing subsequently adds 2ppm in water carries out aggregation; Coagulating time controling is 20000 ~ 25000 in 20min, GT value.
Step 4, the waste water gravity flow after coagulating enters tube settler II and carries out solid-liquid separation, and the residence time is 0.5 hour, and this process simultaneously can part phosphoric in Adsorption water; Tube settler II base sludge is delivered to sludge treating system VI by hydrostaticpressure, carries out processed by folded spiral shell formula sludge dewatering equipment, deviates from water and drains into device top and carry out reprocessing.
Step 5, sends into laminated filter III with the fine particle thing of filtering remnants by the process water through solid-liquid separation by intermediate booster pump.
Step 6, through the water outlet that laminated filter III processes, enters the dissolved organic matter in biological activated carbon tank IV further reduction water and nitrogen nutrition salt.The charcoal bed thickness of biological activated carbon tank IV is 1500mm, and empty bed filtering velocity is 14m/s, and granularity of activated carbon is 40 ~ 60 orders.
Whole device runs automatically by the control realization of automatic control system VIII to each tensimeter, valve and pump.
After above-mentioned process, the indexs such as water outlet TN, TP, coliform count meet three class water quality indexs in " water environment quality standard " (GB3838-2012), the water-quality guideline such as CODMn, BOD5 are better than case Ⅱ waters water-quality guideline, and processing cost only has 0.1 yuan/ton.
Claims (10)
1. the quick improving device of urban water-body water quality, is characterized in that, comprising:
Coagulation reactor (I), connects former water water inlet pipe, and waste water completes the absorption of phosphoric in suspended substance cohesion, larger molecular organics coagulation and water wherein, is formed and pollutes flco;
Tube settler (II), connects the water outlet of coagulation reactor (I), and waste water carries out the solid-liquid separation of the pollution flco formed in coagulation reactor (I) wherein;
Laminated filter (III), connects the water outlet of tube settler (II), retains the fine suspension failing to be separated in tube settler (II);
Biological activated carbon tank (IV), connect the water outlet of laminated filter (III), utilize adsorption and the microbial metabolism effect of gac, realize the reduction of remaining organism and nitrogen element wherein, the water outlet of biological activated carbon tank (IV) is connected with landscape water body.
2. the quick improving device of urban water-body water quality according to claim 1, it is characterized in that, also comprise intermediate water tank (V) is connected coagulation reactor (I) medicine system (VII) with by dosing pipe, after laminated filter (III) filters, a water outlet part enters medicine system (VII) by pipeline, and all the other water outlets enter biological activated carbon tank (IV); A process water part for bioactive charcoal tank (IV) enters intermediate water tank (V), and all the other enter landscape water body, and the sludge outlet of described tube settler (II) connects sludge treating system (VI).
3. the quick improving device of urban water-body water quality according to claim 2, it is characterized in that, described medicine system (VII) is divided into polymerize aluminum chloride mixing adding equipment and polyacrylamide mixing adding equipment, and wherein polyacrylamide adding equipment connects coagulation reactor (I) and sludge treating system (VI) simultaneously.
4. the quick improving device of urban water-body water quality according to claim 2, it is characterized in that, described sludge treating system (VI) is with folded spiral shell formula sludge dewatering equipment for core, and processing power is 0.5m
3/ h.
5. the quick improving device of urban water-body water quality according to Claims 2 or 3 or 4, it is characterized in that, also comprise the automatic control system (VIII) run for all devices in control device, wherein automatic control system (VIII) is connected with such as lower component:
Be set in turn in the water sprayer (1) on described former water water inlet pipe and line mixer (2), an entrance of line mixer (2) and the outlet of water sprayer (1), another entrance connects medicine system (VII), and the outlet of line mixer (2) is connected to coagulation reactor (I);
Be set in turn in the force (forcing) pump (3) between described tube settler (II) and laminated filter (III) on pipeline, fax tensimeter one (4) and motorized valve group one;
Be arranged at the fax tensimeter group of described laminated filter (III) end;
Be set in turn in the motorized valve group two between described laminated filter (III) and medicine system (VII) on pipeline and motorized valve five (14);
Be arranged at the motorized valve six (11) on described biological activated carbon tank (IV) outlet pipeline;
And the ultrasonic level gage (12) be arranged on described intermediate water tank (V) and be arranged at intermediate water tank (V) and laminated filter (III) export between backwashing pump (13) on pipeline.
6. the quick improving device of urban water-body water quality according to claim 5, it is characterized in that, described laminated filter (III) is made up of two filtering unit parallel connections, filtering accuracy is 1 ~ 3 μm, described motorized valve group one comprises the motorized valve one (5) and motorized valve two (6) that are separately positioned on two filtering unit entrances, described fax tensimeter group comprises the fax tensimeter two (7) and fax tensimeter three (8) that are separately positioned on two filtering unit ends, described motorized valve group two comprises the motorized valve three (9) and motorized valve four (10) that are separately positioned on two filtration unit outlet,
Described motorized valve one (5), motorized valve two (6), the switch of motorized valve three (9) and motorized valve four (10) is controlled with the pressure reduction of fax tensimeter one (4) by fax tensimeter two (7) and fax tensimeter three (8), and the running of described backwashing pump (13) and motorized valve one (5), motorized valve two (6), motorized valve three (9) and motorized valve four (10) and fax tensimeter two (7) and fax tensimeter three (8) realize coordinated signals with fax tensimeter one (4): when the pressure reduction of fax tensimeter two (7) and fax tensimeter one (4) is more than 0.3MPa, automatic control system (VIII) sends instruction and closes motorized valve one (5) and motorized valve three (9), open motorized valve two (6) and motorized valve four (10) simultaneously, or, when the pressure reduction of fax tensimeter two (8) and fax tensimeter one (4) is more than 0.3MPa, automatic control system (VIII) sends instruction and closes motorized valve two (6) and motorized valve four (10), opens motorized valve one (5) and motorized valve three (9) simultaneously, meanwhile, automatic control system (VIII) sends instruction unpack backwashing pump (13) and carries out backwash to the filtering unit blocked, time remaining 3min, and the filtering unit after backwash enters stand-by state.
7. the quick improving device of urban water-body water quality according to claim 5, it is characterized in that, described automatic control system (VIII) controls the keying of motorized valve six (11), to ensure that in intermediate water tank, water storage reaches 1m according to the monitoring data of ultrasonic level gage (12)
3, meet the needs of back flushing laminated filter (III).
8. the quick improving device of urban water-body water quality according to claim 5, it is characterized in that, described water sprayer (1) increases dissolved oxygen by mixing with water in air intake water, and for subsequent bio activated carbon treatment technique provides prerequisite, the gas-water ratio of its inspiratory capacity and water inlet is 2:1.
9. the quick improving device of urban water-body water quality according to claim 1, it is characterized in that, in described coagulation reactor (I), hydraulic detention time is 20min, GT value is 20000 ~ 25000, and flocculation agent used is polymerize aluminum chloride and cationic polyacrylamide; Coagulation reactor top is provided with bubble release district, residence time 3min.
10. the quick improving device of urban water-body water quality according to claim 1, it is characterized in that, the charcoal bed thickness of described biological activated carbon tank (IV) is 1500mm, and empty bed filtering velocity is 12 ~ 18m/s, and granularity of activated carbon is 40 ~ 60 orders.
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|---|---|---|---|
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| CN104609676B CN104609676B (en) | 2017-01-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107445269A (en) * | 2017-09-08 | 2017-12-08 | 王娜 | A kind of water quality ensuring equipment based on Mechanical Driven pulse clarifying equipment |
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| CN104609676B (en) | 2017-01-25 |
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