CN202849130U - Electric flocculation wastewater treatment device - Google Patents
Electric flocculation wastewater treatment device Download PDFInfo
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- CN202849130U CN202849130U CN 201220553656 CN201220553656U CN202849130U CN 202849130 U CN202849130 U CN 202849130U CN 201220553656 CN201220553656 CN 201220553656 CN 201220553656 U CN201220553656 U CN 201220553656U CN 202849130 U CN202849130 U CN 202849130U
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Abstract
The utility model relates to an electric flocculation wastewater treatment device which comprises an electrolytic tank, wherein a first electrode and a second electrode are arranged in the electrolytic tank and connected with a power supply with a function of reversing an anode and a cathode through a wire respectively; the power supply is connected with a control system; the control system comprises a programmable logic controller, a current and voltage sampling circuit connected with the programmable logic controller and an electrode reversing circuit for controlling electrode reversing; and the electrode reversing circuit is connected with the programmable logic controller. The electric flocculation wastewater treatment device provided by the utility model is provided with the control system; the control system automatically controls whether to reverse the anode and cathode of the power supply according to the resistance increase rate between the first electrode and the second electrode; and by dynamically adjusting the anode/cathode reversing time of the power supply for different water qualities, electrode passivation is effectively prevented, and the electric flocculation effect is improved.
Description
Technical field
The utility model relates to technical field of sewage, particularly a kind of electricity flocculation wastewater treatment equipment.
Background technology
Electric flocculation technique is under the outside alive effect, utilize capacitive anode (iron anode for example, aluminum anode) positively charged ion that produces is hydrolyzed in solution, polymerization generates a series of multinuclear hydroxo complexes and oxyhydroxide, as organic pollutant and other colloidalmaterials in the flocculation agent absorption sewage, the oxygen that produces at anode and negative electrode simultaneously and the micro-bubble of hydrogen have good adhesion property, has the effect that separates cohesion micelle and suspended substance, so electric flocculation technique is being electroplated, chemical industry, the various industrial sewage such as pharmacy are processed and the water supply purification field is widely used.
Electricity flocculation wastewater treatment equipment comprises electrolyzer, and the electrode pair that is arranged in the electrolyzer reaches the power supply that electric energy is provided for electrode pair.Electrode pair in use is easy to occur passivation at sun, affects electric flocculating effect.In order to reduce passivation phenomenon to the impact of electricity flocculation, people update electricity flocculation wastewater treatment equipment, for example, make the shape of electrode tabular, increase the contact area of electrode and sewage, can prolong the work-ing life of electrode, but passivation phenomenon is not eased.Another improvement is that use has the power supply of putting upside down the positive-negative polarity function, puts upside down at set intervals positive and negative electrode once, makes electrode surface alternately be anode and cathodic reaction, can effectively prevent electrode passivation.
At present electricity flocculation wastewater treatment equipment can only periodically exchange the positive and negative electrode of power supply.Extremely, the electrode of passivation can be activated, and the asynchronism(-nization) of passivation occurs this electrode again, uses the utmost point of fixing cycle, the seriously but phenomenon of falling the utmost point not also of passivation of electrode can occur, causes anti-passivation effect unstable.Different water quality situation (such as different hardness, basicity, saltiness, temperature, pH etc.), the anode of electric flocculation plant is also different with the negative electrode time of falling the utmost point, processes different quality so put upside down electrode according to the same cycle, and anti-passivation effect is not good.In order to heighten anti-passivation effect, then need the scene to fall polar period according to the different quality manual regulation.Manually debugging work bothers, and existing electric flocculation plant can not regulate polar period automatically with change of water quality, causes electric flocculating effect unstable.
The utility model content
Goal of the invention of the present utility model is: can't automatically regulate the problem of polar period according to change of water quality for the electric flocculation plant that prior art exists, provide a kind of and can automatically automatically regulate the electricity flocculation wastewater treatment equipment that power positive cathode changes according to change of water quality.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of electricity flocculation wastewater treatment equipment, comprise electrolyzer, be provided with the first electrode and the second electrode in the described electrolyzer, described the first electrode be connected electrode respectively by wire with have the power supply of putting upside down the positive and negative electrode function and be connected, be connected with Controlling System on the described power supply, described Controlling System comprises programmable logic controller, the current-voltage sampling circuit that is connected with described programmable logic controller, be used for the polar circuit that the control power positive cathode is swung to, described polar circuit is connected with programmable logic controller.
Described current-voltage sampling circuit is used for gathering electric current and the voltage between two electrodes, thereby calculate two resistance between the electrode, described programmable logic controller is according to the resistance change between two electrodes, positive and negative electrode by the automatic control power supply of falling the polar circuit is swung to, avoided because of the again asynchronism(-nization) of passivation behind the electrode activation, use the fixed cycle utmost point and the unsettled problem of anti-passivation effect that causes has improved electric flocculating effect.For different quality, the time of the positive and negative electrode counter-rotating of the adjusting power supply of the utility model electricity flocculation wastewater treatment equipment capable of dynamic, effectively prevented electrode passivation, improve electric flocculating effect.
As preferred version of the present utility model, the shape of described the first electrode and the second electrode is tabular cylindric or netted.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: be provided with Controlling System in the utility model electricity flocculation wastewater treatment equipment, Controlling System is according to the resistance increased value between the first electrode and the second electrode, whether the positive and negative electrode of automatic control power supply reverses, time for the counter-rotating of the positive and negative electrode of different quality dynamic adjustments power supply has effectively prevented electrode passivation, improves electric flocculating effect.Avoid simultaneously manual change's reversal of power cycle, saved cost.
Description of drawings
Fig. 1 is structural representation block diagram of the present utility model.
Fig. 2 is the structural representation block diagram of Controlling System.
Fig. 3 is the resistance change schematic diagram between the electrode in the wastewater treatment process.
Mark among the figure: 1-the first electrode, 2-the second electrode, 3-power supply, 4-Controlling System, 5-electrolyzer, 6-wire, 7-the first connection terminal, 8-the second connection terminal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
With reference to figure 1, the electricity flocculation wastewater treatment equipment that the present embodiment is enumerated comprises electrolyzer 5, be provided with the first electrode 1 and the second electrode 2 in the described electrolyzer 5, described the first electrode 1 is connected with the second connection terminal 8 of power supply 3 by wire 6, the second electrode 2 is connected with the first connection terminal 7 of power supply 3 by wire 6, this power supply 3 has the function of putting upside down positive-negative polarity, be connected with Controlling System 4 on the described power supply 3, described Controlling System 4 comprises programmable logic controller (PLC), the current-voltage sampling circuit that is connected with described programmable logic controller, be used for the polar circuit that control electrode is swung to, described polar circuit is connected with programmable logic controller, as shown in Figure 2.Described current-voltage sampling circuit, the technology of falling the polar circuit are very ripe, no longer are specifically addressed herein.
Can cause the resistance of electrode to increase behind the electrode passivation.The utility model electricity flocculation wastewater treatment equipment is controlled the power positive cathode reversed time automatically by measuring the resistance increased value between the first electrode 1 and the second electrode 2.Along with the carrying out of electricity flocculation electrolysis work, the impurity in the water, calcium ions and magnesium ions etc. are deposited on the negative electrode gradually, and strong oxidizing reaction occurs on the anode, cause the surface of anode to form fine and close metal oxide film passivation layer, and then cause resistance to increase.Current-voltage sampling circuit real-time detection the first electrode 1 in the Controlling System 4 and current value (I) and the magnitude of voltage (U) between the second electrode 2, and continuous calculated resistance increased value, when the resistance increased value reaches the set(ting)value (for example 3 ohm) of Controlling System 4 inside, Controlling System 4 is swung to by the control of falling polar circuit power supply 3 positive and negative electrode immediately, the second electrode 2 and the positive pole of power supply 3 are connected, connect the first electrode 1 and the negative pole of power supply 3 (before supposing that power positive cathode is swung to, the second electrode 2 is connected with the negative pole of power supply 3, the first electrode 1 is connected with the positive pole of power supply 3), simultaneously with current resistance increased value zero clearing.Along with the electrode of the post-passivation of falling the utmost point is activated, resistance reduces gradually, when resistance is reduced to Schwellenwert, Controlling System with this lowest resistance value as the resistance initial value in this cycle, then resistance can raise along with the passivation of the first electrode, when resistance value raises 3 ohm the time, Controlling System 4 is swung to by the control of falling polar circuit power supply 3 positive and negative electrode again, the second electrode 2 and the negative pole of power supply 3 are connected, the first electrode 1 and the positive pole of power supply 3 are connected, with current resistance increment zero clearing, again sought again the resistance initial value simultaneously, and the calculated resistance increased value, as shown in Figure 3.Resistance increased value between the first electrode 1 and the second electrode 2 whenever reaches 3 ohm once, and the positive-negative polarity that 4 of Controlling System are put upside down power supply 3 once.Like this, Controlling System 4 is according to the resistance increased value between the first electrode 1 and the second electrode 2, the positive and negative electrode of automatic control power supply 3 is swung to the cycle, the time of swinging to for the positive and negative electrode of different quality dynamic adjustments power supply 3, effectively prevented electrode passivation, improve electric flocculating effect, avoided the not good problem of electric flocculating effect of using the power supply of same fixedly reversal periods to cause because of different quality.And need not artificial to change the reversal of power cycle according to the water quality situation, reduced human cost.
The first electrode 1 and the second electrode 2 can adopt the materials such as soluble material such as aluminium, iron, copper to make, and also can adopt the making such as insoluble material such as titanium, gold, platinum.The shape of the first electrode 1 and the second electrode 2 can be that first electrode 1 such as tabular, cylindric, netted and the second electrode 2 occur in pairs, and its quantity can be selected one or more pairs of according to the needs of electrolytic current density and area.
The shape of electrolyzer 5 can be the container of round shape or square or other shape, and electrolyzer 5 can open wide, and can be the pressurized vessel of closed also, fills pending sewage or mobile pending sewage in the container.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. electricity flocculation wastewater treatment equipment, comprise electrolyzer, be provided with the first electrode and the second electrode in the described electrolyzer, described the first electrode be connected electrode respectively by wire with have the power supply of putting upside down the positive and negative electrode function and be connected, it is characterized in that, be connected with Controlling System on the described power supply, described Controlling System comprises programmable logic controller, the current-voltage sampling circuit that is connected with described programmable logic controller, be used for the polar circuit that control electrode is swung to, described polar circuit is connected with programmable logic controller.
2. electricity flocculation wastewater treatment equipment according to claim 1 is characterized in that, the shape of described the first electrode and the second electrode is tabular cylindric or netted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553656 CN202849130U (en) | 2012-10-26 | 2012-10-26 | Electric flocculation wastewater treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220553656 CN202849130U (en) | 2012-10-26 | 2012-10-26 | Electric flocculation wastewater treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN202849130U true CN202849130U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220553656 Expired - Lifetime CN202849130U (en) | 2012-10-26 | 2012-10-26 | Electric flocculation wastewater treatment device |
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| CN (1) | CN202849130U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071932A (en) * | 2014-07-21 | 2014-10-01 | 湖南大学 | Treating method and electric flocculation device for Cu-EDTA complex wastewater |
| CN106242131A (en) * | 2016-08-25 | 2016-12-21 | 上海江柘环境工程技术有限公司 | A kind of sulfur-containing waste water processing system and process process thereof |
| CN106277588A (en) * | 2016-08-25 | 2017-01-04 | 上海江柘环境工程技术有限公司 | A kind of silicon-containing wastewater processing system and process process thereof |
| CN107162289A (en) * | 2017-07-21 | 2017-09-15 | 成都飞创科技有限公司 | A kind of AEC electric flocculations Waste Water Treatment |
| CN107827209A (en) * | 2017-11-09 | 2018-03-23 | 中国恩菲工程技术有限公司 | Electric flocculation wastewater treatment equipment and electric flocculation waste water treatment process |
| CN108191003A (en) * | 2017-12-29 | 2018-06-22 | 欧群飞 | A kind of electrolytic processing method of containing sulfate radicals waste water |
-
2012
- 2012-10-26 CN CN 201220553656 patent/CN202849130U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104071932A (en) * | 2014-07-21 | 2014-10-01 | 湖南大学 | Treating method and electric flocculation device for Cu-EDTA complex wastewater |
| CN104071932B (en) * | 2014-07-21 | 2016-04-27 | 湖南大学 | A kind for the treatment of process of Cu-EDTA complexing waste water and electric flocculation plant |
| CN106242131A (en) * | 2016-08-25 | 2016-12-21 | 上海江柘环境工程技术有限公司 | A kind of sulfur-containing waste water processing system and process process thereof |
| CN106277588A (en) * | 2016-08-25 | 2017-01-04 | 上海江柘环境工程技术有限公司 | A kind of silicon-containing wastewater processing system and process process thereof |
| CN107162289A (en) * | 2017-07-21 | 2017-09-15 | 成都飞创科技有限公司 | A kind of AEC electric flocculations Waste Water Treatment |
| CN107827209A (en) * | 2017-11-09 | 2018-03-23 | 中国恩菲工程技术有限公司 | Electric flocculation wastewater treatment equipment and electric flocculation waste water treatment process |
| CN108191003A (en) * | 2017-12-29 | 2018-06-22 | 欧群飞 | A kind of electrolytic processing method of containing sulfate radicals waste water |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
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| CX01 | Expiry of patent term |