CN203295291U - Catalytic micro-electrolysis water treatment equipment - Google Patents

Catalytic micro-electrolysis water treatment equipment Download PDF

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Publication number
CN203295291U
CN203295291U CN2013203358315U CN201320335831U CN203295291U CN 203295291 U CN203295291 U CN 203295291U CN 2013203358315 U CN2013203358315 U CN 2013203358315U CN 201320335831 U CN201320335831 U CN 201320335831U CN 203295291 U CN203295291 U CN 203295291U
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micro
reactor
mixing tank
catalytic
electrolysis
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CN2013203358315U
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谢武
潘琼
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谢武
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Abstract

The utility model discloses catalytic micro-electrolysis water treatment equipment and relates to waste water treatment equipment. The technical scheme adopted by the utility model is as follows: the catalytic micro-electrolysis water treatment equipment comprises an acid mixer (1), a micro-electrolysis reactor (2), a catalytic oxidizer reactor (3), a sedimentation tank (4a), a sedimentation tank (4b), an alkali mixer (5), an air compressor (6) and dosing pumps (7a, 7b and 7c), wherein the acid mixer (1), the micro-electrolysis reactor (2), the catalytic oxidizer reactor (3) and the alkali mixer (5) are connected with the air compressor (6) through a pipeline; the outlet of the acid mixer (1) is connected with the inlet of the micro-electrolysis reactor (2); the outlet of the micro-electrolysis reactor (2) is connected with the inlet of the catalytic oxidizer reactor (3); the outlet of the catalytic oxidizer reactor (3) is connected with the inlet of the sedimentation tank (4a); the outlet of the sedimentation tank (4a) is connected with the inlet of the alkali mixer (5); the outlet of the alkali mixer (5) is connected with the inlet of the sedimentation tank (4b); the dosing pumps (7a, 7b and 7c) are respectively connected with the acid mixer (1), the catalytic oxidizer reactor (3) and the alkali mixer (5). The problems of high cost caused by membrane treatment, difficulty in concentrated water treatment and the like are solved by the catalytic micro-electrolysis water treatment equipment.

Description

A kind of catalytic type micro-electrolytic water treatment facility
Technical field
The utility model patent relates to a kind of sewage treatment equipment, be specifically related to a kind of catalytic type micro-electrolytic water treatment facility, be applicable to percolate after trade effluent, part heavy metal wastewater thereby and some biochemical treatments of high density bio-refractory and the processing of aged percolate.
Background technology
At present, China is for the trade effluent of high density bio-refractory, and method commonly used is to adopt coagulation chemical treatment method and equipment.This technology and equipment, strict to operational conditions, processing efficiency is not high.
In the processing engineering of the percolate after some biochemical treatments and aged percolate, in order to reach emission standard, according to the refuse leachate treatment technology that " 2010 annual national advanced prevention and cure of pollution exemplary teachings register " concludes, processing method and apparatus commonly used has:
1. " the integrated separation of flocculation sediment+MBR+special membrane " combined technical method and equipment;
2. " electrolysis+UASB+MBR " combined technical method and equipment;
3. " biochemical (anaerobism, anoxic, aerobic)+membrane sepn (micro-filtration, ultrafiltration, nanofiltration, reverse osmosis) " combined technical method and equipment;
4. " flocculation sediment → stripping → coagulating sedimentation → anaerobic biological → catalytic oxidation → membrane bioreactor → nanofiltration " combined technical method and equipment.
These four kinds of technique problems to be solved have:
1. problems such as film pollution to be solved and cleaning, operation stability, reduction working cost.
2. electrolysis to be solved high as the pretreatment technology expense, to the problem of extraordinary pollutent poor selectivity.
3. and 4. the problem of further reduction energy consumption to be solved and cost.
Summary of the invention
Deficiency for the treatment technology of the trade effluent that overcomes existing high density bio-refractory, percolate after some biochemical treatments and aged percolate, the utility model provides a kind of catalytic type micro-electrolytic water treatment facility, has solved the film problem such as process that expense high, the dense water that brings can't be processed.Technical solutions of the utility model are: a kind of catalytic type micro-electrolytic water treatment facility is characterized in that: comprise sour mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, settling tank 4a, settling tank 4b, alkali mixing tank 5, air compressor machine 6, dosing pump 7a, 7b, 7c; Described sour mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, alkali mixing tank 5 are connected with air compressor machine 6 by pipeline; The outlet of acid mixing tank 1 is connected with the import of micro-electrolysis reactor 2, the outlet of micro-electrolysis reactor 2 is connected with 3 imports of catalytic oxidant reactor, 3 outlets of catalytic oxidant reactor are connected with settling tank 4a import, settling tank 4a outlet is connected with 5 imports of alkali mixing tank, and 5 outlets of alkali mixing tank are connected with settling tank 4b import; Described dosing pump 7a, 7b, 7c are connected with sour mixing tank 1, catalytic oxidant reactor 3, alkali mixing tank 5 respectively;
Increase the aeration parts in described micro-electrolysis reactor 2, the aeration parts are comprised of a supervisor 8 and 4-8 root arm 9, and the radical of supervisor 8 and arm 9 sizes, arm is relevant with the size of aeration rate; Carry out precision drilling supervisor 8 with arm 9 both sides, aperture is diameter 2-5mm, is conducive to the efficient oxygen transmission and utilizes.The micro-electrolysis reactor structure is transformed, increased the aeration parts,, toward aeration in micro-electrolysis reactor, can reduce the Fe-C plate knot, the clearance of increasing to pollutents such as COD;
A kind of method of work of catalytic type micro-electrolytic water treatment facility is:
The first step, at first be delivered to waste water in sour mixing tank 1, and dosing pump 7a adds acid medicine, adjusts the pH value between 3-4, starts air compressor machine 6 aerations, and waste water is fully mixed with medicament;
Second step, be delivered to the waste water in sour mixing tank 1 in micro-electrolysis reactor 2 aerated reaction 1-2h; 2 waste water in micro-electrolysis reactor is delivered in catalytic oxidant mixing tank 3, and dosing pump 7b adds the catalyzed oxidation agent hydrogen peroxide, adjusts the pH value between 3-4, aerated reaction 1-2h;
In the 3rd step, be delivered to settling tank 4a with the waste water in catalytic oxidant mixing tank 3, and after flocs unit staticly settled in water, supernatant liquor was delivered in alkali mixing tank 5, and 7c adds basic agent by dosing pump, adjusts the pH value between 7-8, aerated reaction 5-10min;
In the 4th step, be delivered to settling tank 4b with the waste water in alkali mixing tank 5, after flocs unit staticly settles in water, and supernatant liquor qualified discharge or be delivered to the next stage treatment process until up to standard.
Described micro-electrolysis reactor iron carbon filler layer adopts iron filings and coke granule, and when waste iron filing and coke consumption volume ratio=1:2-1:4, the COD clearance is higher, and removal effect is better.During volume ratio=1:3, the COD clearance reaches 58.4%, and removal effect is best.Be deposited in long reaction time together for fear of waste iron filing and occur long afterwards hardening, so the particle diameter of coke is probably 1~2cm.The filler supporting layer adopts the thick pebbles of 150mm-200mm, prevents that the packing layer particle from passing supporting plate and stopping up prosopyle.
Technique effect of the present utility model:
Common micro-electrolysis reactor structure is transformed, increased the aeration parts,, toward aeration in micro-electrolysis reactor, can reduce the Fe-C plate knot, the clearance of increasing to pollutents such as COD;
Add catalytic oxidant in water outlet after common micro-electrolysis reactor is processed, make Fe 2+Produce complex reaction mechanism with catalytic oxidant, obviously improve the place to go rate of pollutent;
Utilize present technique to carry out pre-treatment to the waste water of high density bio-refractory, aged percolate, the biodegradability of waste water is significantly increased, can improve 0.2-0.3, good with follow-up biochemical treatment matching, make after the wastewater treatment of high density bio-refractory the emission standard that can reach national regulation.
Relatively, as with membrane technique, comparing, this technology building gross investment approximately reduces 30% for percolate after present technique and some other biochemical treatment and the treatment technology of aged percolate, and operation cost saves 55%.Therefore, present technique is the water technology of a kind of high-level efficiency, less energy-consumption, and has solved the film problem such as process that expense high, the dense water that brings can't be processed.Technical superiority is mainly reflected in:
(1) material therefor is simple and easy in the catalytic type microelectrolysis process, with waste iron filing and the lower cost for material such as coke or gac.
(2) not power consumption of catalytic type micro-electrolysis reaction process, and can produce redox, the effects such as electric agglomeration, the nascent state Fe that electrode reaction produces 2+A kind of absorption, contain and the great coagulating agent of complex ability, therefore it is many that the characteristics of the little electrolysis of catalytic type are mechanism of action, synergetic property is strong, and net effect is remarkable, good decolorizing effect, can improve wastewater biodegradability, B/C improves 0.2-0.3, and is good with follow-up biochemical treatment matching, easy and simple to handle, working cost is low; Its COD clearance can reach 75-85%, and percent of decolourization, at 80-95%, adopts special its long-time running better effects if of efficient catalytic type micro-electrolysis reaction equipment.
Description of drawings
Accompanying drawing 1 is the utility model device structure schematic diagram
Acid mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, settling tank 4a, settling tank 4b, alkali mixing tank 5, air compressor machine 6, dosing pump 7a, dosing pump 7b, dosing pump 7c
Accompanying drawing 2 is the utility model aerating apparatus structural representation
Supervisor 8, arm 9
Accompanying drawing 3 is the utility model process flow sheet.
Embodiment
Embodiment 1:
Process 100 m3/d sanitary filling field diafiltration waste water, take a kind of catalytic type micro-electrolytic water of the utility model treatment facility, order is placed sour mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, settling tank 4a, settling tank 4b, alkali mixing tank 5, air compressor machine 6, dosing pump 7a, 7b, 7c; Then described sour mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, alkali mixing tank 5 are connected with air compressor machine 6 by pipeline; The outlet of acid mixing tank 1 is connected with the import of micro-electrolysis reactor 2, the outlet of micro-electrolysis reactor 2 is connected with 3 imports of catalytic oxidant reactor, 3 outlets of catalytic oxidant reactor are connected with settling tank 4a import, settling tank 4a outlet is connected with 5 imports of alkali mixing tank, and 5 outlets of alkali mixing tank are connected with settling tank 4b import; Described dosing pump 7a, 7b, 7c are connected with sour mixing tank 1, catalytic oxidant reactor 3, alkali mixing tank 5 respectively;
Increase the aeration parts in micro-electrolysis reactor 2, aeration rate is 400m 3/ d, the aeration parts are comprised of 8 and 6 arms 9 of a supervisor, supervisor 8, with arm 9 both sides, carry out precision drilling, and aperture is 4mm.
Treatment process is:
At first 100 tons of sanitary filling field diafiltration waste water are delivered in sour mixing tank 1, dosing pump 7a adds 375 liters of the hydrochloric acid of 30% concentration, and adjusting pH value is 3.5, and startup air compressor machine 6 aerations, make waste water fully mix with medicament;
Second step, be delivered to the waste water in sour mixing tank 1 in micro-electrolysis reactor 2 aerated reaction 1.5h; 2 waste water in micro-electrolysis reactor is delivered in catalytic oxidant mixing tank 3, and dosing pump 7b adds 125 liters of catalyzed oxidation agent hydrogen peroxides, and adjusting the pH value is 3, aerated reaction 1.5h;
In the 3rd step, the waste water in catalytic oxidant mixing tank 3 is delivered to settling tank 4a, after flocs unit staticly settles in water, supernatant liquor is delivered in alkali mixing tank 5,1875 liters, the calcium hydroxide that adds basic agent 10% concentration by dosing pump 7c, adjusting the pH value is 7.5, aerated reaction 5min;
In the 4th step, be delivered to settling tank 4b with the waste water in alkali mixing tank 5, after flocs unit staticly settles in water, and supernatant liquor qualified discharge or be delivered to the next stage treatment process until up to standard.
By the sanitary filling field diafiltration waste water that the utility model is processed, the water treatment data are in Table 1:
Table: percolate water quality after 1 catalytic type micro-electrolysis reaction
Test water BOD5/(mg/L) COD/(mg/L) PH value NH4 +-N/(mg/L) Colourity
The little electrolysis of catalytic type 35 101 5.5 10.4 20
The percolate emission standard should meet " life percolate landfill yard pollutes control criterion " (GB16889-2008) standard.Specifically in Table 2.
Table 2 life percolate landfill yard pollutes control criterion
By the data of table 1 and " life percolate landfill yard pollutes control criterion " contrast, the percolate BOD5 index of discovery after catalytic type micro-electrolysis reaction advanced treatment is that 35mg/L, COD index are that 101 mg/L are below standard, but the also value of being near the mark.Therefore only needing that water outlet is delivered to that next stage biochemical treatment operation slightly deals with can be up to standard.
Embodiment 2:
Process 80 m 3/ d printed circuit board waste water, take a kind of catalytic type micro-electrolytic water of the utility model treatment facility, order is placed sour mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, settling tank 4a, settling tank 4b, alkali mixing tank 5, air compressor machine 6, dosing pump 7a, 7b, 7c; Then described sour mixing tank 1, micro-electrolysis reactor 2, catalytic oxidant reactor 3, alkali mixing tank 5 are connected with air compressor machine 6 by pipeline; The outlet of acid mixing tank 1 is connected with the import of micro-electrolysis reactor 2, the outlet of micro-electrolysis reactor 2 is connected with 3 imports of catalytic oxidant reactor, 3 outlets of catalytic oxidant reactor are connected with settling tank 4a import, settling tank 4a outlet is connected with 5 imports of alkali mixing tank, and 5 outlets of alkali mixing tank are connected with settling tank 4b import; Described dosing pump 7a, 7b, 7c are connected with sour mixing tank 1, catalytic oxidant reactor 3, alkali mixing tank 5 respectively;
Increase the aeration parts in micro-electrolysis reactor 2, aeration rate is 320 m 3/ d, the aeration parts are comprised of 8 and 4 arms 9 of a supervisor, supervisor 8, with arm 9 both sides, carry out precision drilling, and aperture is 3mm.
Treatment process is:
At first 80 tons of printed circuit board waste waters are delivered in sour mixing tank 1, dosing pump 7a adds 375 liters, 30% sulfuric acid, and adjusting the pH value is 3, starts air compressor machine 6 aerations, and waste water is fully mixed with medicament;
Second step, be delivered to the waste water in sour mixing tank 1 in micro-electrolysis reactor 2 aerated reaction 2h; 2 waste water in micro-electrolysis reactor is delivered in catalytic oxidant mixing tank 3, and dosing pump 7b adds 100 liters of catalyzed oxidation agent hydrogen peroxides, and adjusting the pH value is 4, aerated reaction 2h;
In the 3rd step, the waste water in catalytic oxidant mixing tank 3 is delivered to settling tank 4a, after flocs unit staticly settles in water, supernatant liquor is delivered in alkali mixing tank 5,900 liters, the sodium hydroxide that adds basic agent concentration 20% by dosing pump 7c, adjusting the pH value is 7, aerated reaction 5min;
In the 4th step, be delivered to settling tank 4b with the waste water in alkali mixing tank 5, after flocs unit staticly settles in water, and the supernatant liquor qualified discharge.
By the printed circuit board waste water that the utility model is processed, the data of water sample are: heavy metal ion Cr<1.5mg/L, Cu<0.5mg/L, total COD removes 70% left and right, BOD 5/ COD is increased to more than 0.40 by 0.20, and wastewater effluent reaches water white transparency, and stable effluent quality fully can qualified discharge.

Claims (2)

1. a catalytic type micro-electrolytic water treatment facility, is characterized in that: comprise sour mixing tank (1), micro-electrolysis reactor (2), catalytic oxidant reactor (3), settling tank (4a), settling tank (4b), alkali mixing tank (5), air compressor machine (6), dosing pump (7a), (7b), (7c); Described sour mixing tank (1), micro-electrolysis reactor (2), catalytic oxidant reactor (3), alkali mixing tank (5) are connected with air compressor machine (6) by pipeline; The outlet of acid mixing tank (1) is connected with the import of micro-electrolysis reactor (2), the outlet of micro-electrolysis reactor (2) is connected with catalytic oxidant reactor (3) import, catalytic oxidant reactor (3) outlet is connected with settling tank (4a) import, settling tank (4a) outlet is connected with alkali mixing tank (5) import, and alkali mixing tank (5) outlet is connected with settling tank (4b) import; Described dosing pump (7a), (7b), (7c) are connected with sour mixing tank (1), catalytic oxidant reactor (3), alkali mixing tank (5) respectively.
2. catalytic type micro-electrolytic water treatment facility according to claim 1, it is characterized in that: described micro-electrolysis reactor also comprises the aeration parts in (2), the aeration parts are comprised of a supervisor (8) and 4-8 root arm (9), and the radical of supervisor (8) and arm (9) size, arm is relevant with the size of aeration rate; Carry out precision drilling supervisor (8) with arm (9) both sides, aperture is diameter 2-5mm.
CN2013203358315U 2013-06-13 2013-06-13 Catalytic micro-electrolysis water treatment equipment Expired - Fee Related CN203295291U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103304076A (en) * 2013-06-13 2013-09-18 谢武 Catalytic micro-electrolysis water treatment equipment and process method thereof
CN107099812A (en) * 2017-05-26 2017-08-29 南阳市豫龙源汽车养护有限公司 A kind of apparatus for electrolyzing and with the device remove carbon combustion-supporting system
CN110255728A (en) * 2019-06-19 2019-09-20 武汉上善清源环保科技有限公司 A kind of a new combined process method and system of landfill leachate treatment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103304076A (en) * 2013-06-13 2013-09-18 谢武 Catalytic micro-electrolysis water treatment equipment and process method thereof
CN107099812A (en) * 2017-05-26 2017-08-29 南阳市豫龙源汽车养护有限公司 A kind of apparatus for electrolyzing and with the device remove carbon combustion-supporting system
CN110255728A (en) * 2019-06-19 2019-09-20 武汉上善清源环保科技有限公司 A kind of a new combined process method and system of landfill leachate treatment

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Granted publication date: 20131120

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