CN105036416B - A kind of lime node reflux heavy metal waste water treatment system - Google Patents
A kind of lime node reflux heavy metal waste water treatment system Download PDFInfo
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- CN105036416B CN105036416B CN201510471250.8A CN201510471250A CN105036416B CN 105036416 B CN105036416 B CN 105036416B CN 201510471250 A CN201510471250 A CN 201510471250A CN 105036416 B CN105036416 B CN 105036416B
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Abstract
A kind of lime node reflux heavy metal waste water treatment system, it includes wastewater collection pond (1), lime dosing pond (2), flocculation basin (3), sedimentation basin (4), regulating reservoir (5), discharge pond (6), sludge concentration tank (8), sludge press filtration system (7), flocculation medicine system (9), sour medicine system (10), lime dispensing system (11).The present invention full-automatic can be run, and is improved treatment effeciency, is reduced human cost, solves lime slurry scale problems in pipeline, prevent dirty blocked pipeline.
Description
Technical field
The present invention relates to a kind of lime node reflux heavy metal waste water treatment system.
Background technology
In acid heavy metal wastewater treatment industry, lime slurry can be used for the pH value of regulating water quality, and in water body
Colloidal particles can play Coagulation aiding, as granular core weighting agent, the precipitation of insoluble matter can be accelerated to separate, improve and improve coagulation
Sedimentation effect, the chemical stability for increasing water body.By increasing the dosage of lime slurry, pH value is set to be increased to 10.5 or so,
It can reach the effect for removing heavy metal ions in sewage.Therefore it is widely used in electroplating wastewater processing.But lime slurry
Conveying is more difficult, and lime slurry easily easy fouling in the duct, dirty blocked pipeline, causes heavy metal waste water treatment system to handle
Efficiency is low, influences the qualified discharge of water quality.
The conveying of current heavy metal-polluted water treatment system lime slurry uses pipeline, when lime slurry occurs in pipeline
, it is necessary to which artificial Cleaning pipes, need stoppage in transit heavy metal waste water treatment system, shadow when increasing human cost, and cleaning during fouling
The normal operation of acoustic system.
Existing lime slurry mode of movement be easy to cause pipeline scale, causes heavy metal containing wastewater treatment efficiency low, influences
The qualified discharge of water quality.The stifled pipeline of dirt increases human cost using manually cleaning.
The content of the invention
For the dirty situation stifled, sewage treating efficiency is low, the degree of automation is relatively low of pipeline scale of the prior art, this hair
Bright purpose is to provide a kind of lime node reflux heavy metal waste water treatment system, it include wastewater collection pond, lime dosing pond,
Flocculation basin, sedimentation basin, regulating reservoir, discharge pond, sludge concentration tank, sludge press filtration system, flocculation medicine system, sour medicine system,
Lime dispensing system；
Wherein wastewater collection pond is sequentially connected lime dosing pond, flocculation basin, sedimentation basin, regulating reservoir, discharge pond by pipeline,
The bottom precipitation outlet of sedimentation basin connects sludge concentration tank via pump, reconnects sludge press filtration system,
Sedimentation basin connection flocculation medicine system, the sour medicine system of regulating reservoir connection, lime dosing pond passes through lime delivery pipe
Road connects lime dispensing system, and the lime for being used to make lime slurry return to lime dispensing system is equipped with lime conveyance conduit and is returned
Ratio adjusting valve is respectively equipped with flow tube road, lime conveyance conduit and lime reflux line, lime dosing pond is added for adjusting
Milk of lime liquid measure and return lime dispensing system milk of lime liquid measure.
Preferably, it is additionally provided with normal closed gate on lime conveyance conduit.
Preferably, normal closed gate power is provided by air inflator.
Preferably, it is equipped with tank level control system in wastewater collection pond.
Preferably, pH online feedback systems are equipped with lime dosing pond.
Preferably, pH online feedback systems are equipped with regulating reservoir.
Preferably, whole system all controls (programmable logic controller (PLC)) full automatic working using PLC.
It is using the operating process of said system：When waste water in wastewater collection pond reaches certain liquid level, PLC is automatically controlled
Waste water lifting pump startup, waste water enter lime dosing pond, and water quality acid-base property feeds back to PLC control system by pH control systems, and
Rational judgment is carried out, PLC control normal closed gates open (such as passing through air inflator system), and pass through ratio adjusting valve, addition
Milk of lime liquid measure in lime dosing pond, lime slurry are inputted by lime conveyance conduit, after addition lime dosing pond is a certain amount of
Lime automated dispensing system is returned to by lime reflux line, this system is a circulation, and lime slurry is in lime conveyance conduit
With have lime slurry circulation in lime reflux line, it is therefore prevented that the residual in pipeline of lime, and then prevent the knot of pipeline
Dirt.Waste water flows into flocculation basin by lime dosing pond, adds high polymer coagulant by medicine system of flocculating in flocculation basin, really
Protecting in flocculation basin has floccule body, and subsequently into sedimentation basin, the separation of solid and liquid in sedimentation basin, supernatant is existed into regulating reservoir by pH
Line reponse system feeds back to PLC control system, and the sour medicine system of PLC control system control quantitatively adds acid, and waste water passes through row
Put pond qualified discharge.Sediment is pumped into sludge concentration tank by PLC control system control in sedimentation basin pond, after concentration again
Sludge press filtration system is entered by PLC control system control, so far whole lime node reflux heavy metal waste water treatment system knot
Beam.
The present invention sets the pipeline of lime slurry twice to include lime conveyance conduit and lime reflux line, constitutes one
Circulation may insure there is lime slurry circulation in whole lime pipeline, prevent residual of the lime slurry in pipeline, Jin Erfang
Only pipeline scale.Normal closed gate and ratio adjusting valve are provided with lime conveyance conduit, pH on-line control systems are water quality
Acid-base property feeds back to PLC system, and the unlatching of PLC system control normal closed gate adds lime slurry, ratio volume tune in Calcified pond
Save addition of the valve control lime slurry in Calcified pond, it is ensured that lime slurry addition meets technological parameter.Flow back in lime
Ratio adjusting valve is provided with pipeline, on the one hand playing safety effect ensures that addition of the lime slurry in Calcified pond meets work
Skill parameter, on the one hand ensures there is lime slurry circulation in lime reflux line, prevents pipeline scale.
Advantages of the present invention：
1st, the present invention full-automatic can be run, and is improved treatment effeciency, is reduced human cost.(during pipeline scale, must
Palpus halt system operation, manually carries out cleaning pipeline).
2nd, the present invention solves lime slurry scale problems in pipeline, prevents dirty blocked pipeline.
Brief description of the drawings
Fig. 1 is the schematic diagram of the lime node reflux heavy metal waste water treatment system of the present invention.
The schematic diagram of the lime node return-flow system for the lime node reflux heavy metal waste water treatment system that Fig. 2 is Fig. 1.
Reference numeral：
1：Wastewater collection pond, 2：Lime dosing pond, 3：Flocculation basin, 4：Sedimentation basin, 5：Regulating reservoir, 6：Discharge pond, 8：Sludge
Concentration basin, 7：Sludge press filtration system, 9：Flocculation medicine system, 10：Sour medicine system, 11：Lime automated dispensing system, 12：It is empty
Gas inflator system, 13：PH online feedbacks system, 14,16：Ratio adjusting valve, 15：Normal closed gate, 17：Lime conveyance conduit, 18：
Lime reflux line, 19：PLC control system
Embodiment
Illustrate the present invention below in conjunction with attached drawing.
Referring to Figures 1 and 2, a kind of lime node reflux heavy metal waste water treatment system, it includes wastewater collection pond 1, stone
Grey dosing pond 2, flocculation basin 3, sedimentation basin 4, regulating reservoir 5, discharge pond 6, sludge concentration tank 8, sludge press filtration system 7, flocculation dosing
System 9, sour medicine system 10, lime dispensing system 11；
Wherein wastewater collection pond 1 is sequentially connected lime dosing pond 2, flocculation basin 3, sedimentation basin 4, regulating reservoir 5, row by pipeline
Pond 6 is put, the bottom precipitation outlet of sedimentation basin 4 connects sludge concentration tank 8 via pump, reconnects sludge press filtration system 7,
The connection flocculation medicine system 9 of sedimentation basin 4, regulating reservoir 5 connect sour medicine system 10, and lime dosing pond 2 passes through lime
Conveyance conduit 17 connects lime dispensing system 11, is equipped with lime conveyance conduit 11 and is used to make lime slurry return lime make up a prescription
Ratio adjusting valve 14,16 is respectively equipped with the lime reflux line 18 of system, lime conveyance conduit 17 and lime reflux line 18,
The milk of lime liquid measure in lime dosing pond 2 is added for adjusting and returns to the milk of lime liquid measure of lime dispensing system 11.
Preferably, normal closed gate 15 is additionally provided with lime conveyance conduit.Preferably, normal closed gate power is by air gas
Cylinder 12 provides.Preferably, it is equipped with tank level control system in wastewater collection pond.Preferably, it is anti-online that pH is equipped with lime dosing pond
Feedback system.Preferably, pH online feedback systems are equipped with regulating reservoir.Preferably, whole system is all controlled full-automatic using PLC
Operation.
It is using the operating process of said system：When waste water in wastewater collection pond 1 reaches certain liquid level, PLC is controlled automatically
Waste water lifting pump startup processed, waste water enter lime dosing pond, and water quality acid-base property feeds back to PLC control system by pH control systems 13
19, and rational judgment is carried out, PLC control normal closed gates 15 open (by air inflator system 12), and pass through ratio adjusting valve
14th, 16 the milk of lime liquid measure in lime dosing pond 2 is added, lime slurry is inputted by lime conveyance conduit 17, is added lime and is added
Lime automated dispensing system 11 is returned to by lime reflux line 18 after medicine pond 2 is a certain amount of, this system circulates for one, lime slurry
Have lime slurry circulation in lime conveyance conduit 17 and lime reflux line 18, it is therefore prevented that lime it is residual in pipeline
Stay, and then prevent the fouling of pipeline.Waste water flows into flocculation basin 3 by lime dosing pond 2, passes through dosing of flocculating in flocculation basin 3
System 9 adds high polymer coagulant, it is ensured that there is floccule body in flocculation basin 3, subsequently into sedimentation basin 4, and the solid-liquid point in sedimentation basin 4
From supernatant feeds back to PLC control system 19 into regulating reservoir 5 by pH online feedbacks system 13, and PLC control system 19 controls
Sour medicine system 10 quantitatively adds acid, and waste water is by discharging 6 qualified discharge of pond.Sediment is controlled by PLC in 4 pond of sedimentation basin
The control of system 19 is pumped into sludge concentration tank 8, enters sludge press filtration system by the control of PLC control system 19 again after concentration
7 so far whole lime node reflux heavy metal waste water treatment systems terminate.
Tests prove that the present invention full-automatic can be run, longtime running lime slurry pipeline improves place without fouling
Efficiency is managed, human cost is reduced, solves lime slurry scale problems in pipeline, prevent dirty blocked pipeline.
Claims (7)
- The heavy metal waste water treatment system 1. a kind of lime node flows back, it includes wastewater collection pond (1), lime dosing pond (2), wadding Solidifying pond (3), sedimentation basin (4), regulating reservoir (5), discharge pond (6), sludge concentration tank (8), sludge press filtration system (7), flocculation dosing System (9), sour medicine system (10), lime dispensing system (11)；Wherein wastewater collection pond (1) is sequentially connected lime dosing pond (2), flocculation basin (3), sedimentation basin (4), regulating reservoir by pipeline (5), pond (6) are discharged, the bottom precipitation outlet of sedimentation basin (4) reconnects sludge press filtration system via pump connection sludge concentration tank (8) Unite (7),Sedimentation basin (4) connection flocculation medicine system (9), the sour medicine system (10) of regulating reservoir (5) connection, lime dosing pond (2) are logical Lime conveyance conduit (17) connection lime dispensing system (11) is crossed, is equipped with lime conveyance conduit (17) and is used to make lime slurry The lime reflux line (18) of lime dispensing system (11) is returned, is divided on lime conveyance conduit (17) and lime reflux line (18) Not She You ratio adjusting valve (14), (16), for adjust add lime dosing pond (2) milk of lime liquid measure and return lime make up a prescription The milk of lime liquid measure of system (11).
- The heavy metal waste water treatment system 2. lime node according to claim 1 flows back, wherein, it is another on lime conveyance conduit It is externally provided with normal closed gate.
- The heavy metal waste water treatment system 3. lime node according to claim 2 flows back, wherein, normal closed gate power be by Air inflator system (12) provides.
- The heavy metal waste water treatment system 4. lime node according to any one of claim 1-3 flows back, wherein, waste water is received Collection is equipped with tank level control system in pond.
- The heavy metal waste water treatment system 5. lime node according to any one of claim 1-3 flows back, wherein, lime adds PH online feedback systems are equipped with medicine pond.
- The heavy metal waste water treatment system 6. lime node according to any one of claim 1-3 flows back, wherein, regulating reservoir It is interior to be equipped with pH online feedback systems.
- The heavy metal waste water treatment system 7. lime node according to any one of claim 1-3 flows back, wherein, the whole series system System all controls full automatic working using PLC.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510471250.8A CN105036416B (en) | 2015-08-01 | 2015-08-01 | A kind of lime node reflux heavy metal waste water treatment system |
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| CN201510471250.8A CN105036416B (en) | 2015-08-01 | 2015-08-01 | A kind of lime node reflux heavy metal waste water treatment system |
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| CN105036416A CN105036416A (en) | 2015-11-11 |
| CN105036416B true CN105036416B (en) | 2018-04-20 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417784A (en) * | 2015-12-09 | 2016-03-23 | 北京安国水道自控工程技术有限公司 | Method for curing solidification treatment of heavy metal-containing sour water |
| CN109650510A (en) * | 2018-12-06 | 2019-04-19 | 彩虹（合肥）液晶玻璃有限公司 | A kind of PH control device and waste water treatment system |
| CN110902881A (en) * | 2019-12-02 | 2020-03-24 | 沈阳环境科学研究院 | Efficient combined water treatment process for short-distance coagulating sedimentation and filtration |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291429A (en) * | 2014-10-31 | 2015-01-21 | 四川北方硝化棉股份有限公司 | Neutralization treatment device for nitrocellulose waste acid water and lime cream |
| CN204369733U (en) * | 2014-12-24 | 2015-06-03 | 浙江蓝天求是环保股份有限公司 | A kind of flue gas desulfurization wastewater treatment system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190287A (en) * | 1984-03-09 | 1985-09-27 | Mitsubishi Heavy Ind Ltd | Treatment of waste gas desulfurization waste water |
| CN202164162U (en) * | 2011-07-04 | 2012-03-14 | 吉林市世纪华扬环境工程有限公司 | Lime milk dosing and neutralizing device for sewage treatment |
| CN102276044B (en) * | 2011-08-11 | 2013-05-22 | 无锡市新都环保科技有限公司 | Connection structure for lime feeding tube in water treatment equipment |
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- 2015-08-01 CN CN201510471250.8A patent/CN105036416B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104291429A (en) * | 2014-10-31 | 2015-01-21 | 四川北方硝化棉股份有限公司 | Neutralization treatment device for nitrocellulose waste acid water and lime cream |
| CN204369733U (en) * | 2014-12-24 | 2015-06-03 | 浙江蓝天求是环保股份有限公司 | A kind of flue gas desulfurization wastewater treatment system |
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Address after: 230601 Anhui city of Hefei Province Economic and Technological Development Zone No. 11 Zi Peng Lu Patentee after: Hefei Tongguan electronic copper foil Co., Ltd Address before: 230601 Anhui city of Hefei Province Economic and Technological Development Zone No. 11 Zi Peng Lu Patentee before: HEFEI TONGGUAN GUOXUAN COPPER PRODUCTS Co.,Ltd. |
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