CN104229947A - Wastewater treatment device and method using multi-element coal and iron carbon - Google Patents
Wastewater treatment device and method using multi-element coal and iron carbon Download PDFInfo
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- CN104229947A CN104229947A CN201410445543.4A CN201410445543A CN104229947A CN 104229947 A CN104229947 A CN 104229947A CN 201410445543 A CN201410445543 A CN 201410445543A CN 104229947 A CN104229947 A CN 104229947A
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Abstract
The invention relates to a wastewater treatment device and wastewater treatment method using multi-element coal and iron carbon. The wastewater treatment device comprises a base, a reactor, a water inlet pipe and a water outlet pipe. According to the wastewater treatment device and the wastewater treatment method disclosed by the invention, the reactor with a multi-stage reaction chamber is designed, and the average particle sizes of a multi-element coal and iron carbon filling material in the reactor are sequentially reduced, so that organic wastewater can be filtered layer by layer and can be subjected to micro-electrolysis reaction with the multi-element coal and iron carbon filling material in the reaction chamber; and with the reduction of the particle sizes of the multi-element coal and iron carbon filling material, the specific surface area is gradually increased, so that a plurality of organic wastewater with different concentrations, especially high-concentration organic wastewater can be treated, and the wastewater is subjected to preliminary filtration and micro-electrolysis on a bottom layer, and then flows to a high layer to perform deep filtration and micro-electrolysis. The wastewater treatment device and the wastewater treatment method disclosed by the invention have the advantages of continuous high efficiency and non-hardening performance, can be used for greatly removing organic pollutants and improving the biodegradability of the organic wastewater, and can lay a good foundation for subsequent biological treatment.
Description
Technical field
The present invention relates to treatment of Organic Wastewater field, especially relate to a kind of wastewater treatment equipment and the method that adopt polynary coal iron carbon.
Background technology
The treatment of Organic Wastewater of organic waste water, particularly high salt, high look, high density is the difficult problem that numerous domestic environmental worker and administrative authority pay close attention to always.Along with the fast development of China's chemical industry, various novel Chemicals are applied to all trades and professions, particularly in the heavily contaminated industry such as medicine, chemical industry, plating, printing and dyeing, improving the quality of products, while quality also with day by day serious problem of environmental pollution, be mainly manifested in: organic waste organic pollutants concentration is high, Stability Analysis of Structures, biochemical are poor, common process is difficult to realize qualified discharge, and processing cost is high, reduces discharging bring great pressure to industry energy conservation.
Summary of the invention
Based on this, be necessary to provide a kind for the treatment of of Organic Wastewater effect better and the wastewater treatment equipment of lower-cost employing first coal iron carbon and method.
Adopt a wastewater treatment equipment for polynary coal iron carbon, for purification of organic waste water, this wastewater treatment equipment comprises:
Base;
Reactor, is located on described base, comprises the multistage reaction chamber be communicated with successively, is filled with polynary coal iron carbon filler in described reaction chamber, and along the flow direction of organic waste water, the mean particle size of the polynary coal iron carbon filler in described reaction chamber reduces successively;
Water inlet pipe, penetrates in described base, and described water inlet pipe is provided with the prosopyle that multiple and described reaction chamber is communicated with; And
Rising pipe, is located at the top of described reactor and is communicated with the described reaction chamber of last step.
Wherein in an embodiment, be provided with the plastic filler basket for coal iron carbon filler polynary described in splendid attire in described reaction chamber, described plastic filler basket is detachable to be fixed in described reaction chamber and to be vesicular structure at the bottom of the basket of described plastic filler basket.
Wherein in an embodiment, described reactor comprises two-stage reaction room, is respectively the first reaction chamber and the second reaction chamber, and described first reaction chamber is placed on described base, described second reaction chamber is placed on described first reaction chamber, and the opening of described prosopyle upward.
Wherein in an embodiment, the mean particle size of the polynary coal iron carbon filler in described first reaction chamber is 30-40mm, and tamped density is 60-80%; The mean particle size of the polynary coal iron carbon filler in described second reaction chamber is 10-20, and tamped density is 50-70%.
Wherein in an embodiment, described polynary coal iron carbon filler is the porous alloy structure that iron, carbon and metal catalytic element are formed, and wherein, the percent mass of each composition is frequently: iron: 68-85%, carbon: 10-30%, metal catalytic element: 1%-5%.
Wherein in an embodiment, described wastewater treatment equipment also comprises preposition pH regulator device, described preposition pH regulator device be positioned at described water inlet pipe before for regulating the pH value of organic waste water before organic waste water is passed into described water inlet pipe.
Wherein in an embodiment, described wastewater treatment equipment also comprises the pH monitoring device for detecting the organic waste water pH value passing into described water inlet pipe be located on described base.
Wherein in an embodiment, described wastewater treatment equipment also comprises the ventpipe be located in described base, towards the opposite towards the opening with described prosopyle of the pore of described ventpipe.
Wherein in an embodiment, described wastewater treatment equipment also comprises and being located on described base and the suck-back evacuated tube penetrated in described base, described suck-back evacuated tube offers multiple drain hole that Open Side Down, for the solid matter of sedimentation in emptying described reactor.
A kind of method of wastewater treatment, use the wastewater treatment equipment described in above-mentioned any embodiment, this method of wastewater treatment comprises the steps:
The pH value of described organic waste water is adjusted to 2.5 ~ 3;
Described organic waste water is passed in described wastewater treatment equipment, and carries out physical filtering and microelectrolysis processing in the reactor entering described multi-stage reaction chamber from described prosopyle;
The organic waste water through purifying treatment is discharged from described rising pipe.
Above-mentioned wastewater treatment equipment and method of wastewater treatment thereof, be there is by design the reactor of multi-stage reaction chamber, the mean particle size of the polynary coal iron carbon filler in reactor reduces successively, thus organic waste water can be filtered layer by layer, and with polynary coal iron carbon filler generation micro-electrolysis reaction in reaction chamber, along with the reduction of the granular size of polynary coal iron carbon filler, specific surface knot increases gradually, the organic waste water of multiple different concns can be processed, particularly high concentrated organic wastewater, filter and light electrolysis through preliminary at bottom, flow into high level again and carry out depth type filtration and light electrolysis, have and continue efficiently, the advantage do not hardened, while significantly removing organic pollutant, improve the biodegradability of organic waste water, for follow-up biological treatment is had laid a good foundation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wastewater treatment equipment of the employing polynary coal iron carbon filler of an embodiment;
Fig. 2 is the structural representation of the first plastic filler basket in Fig. 1;
Fig. 3 is the structural representation of the second plastic filler basket in Fig. 1;
Fig. 4 is the schematic flow sheet of the method for wastewater treatment of an embodiment.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
As shown in Figure 1, the wastewater treatment equipment 10 of the employing polynary coal iron carbon of an embodiment is mainly used in purification of organic waste water, as heavily contaminated trade effluents etc. such as medicine, chemical industry, plating or printing and dyeing.This wastewater treatment equipment 10 comprises preposition pH regulator device 100, base 200, water inlet pipe 300, pH monitoring device 400, ventpipe 500, suck-back evacuated tube 600, reaction chamber 700 and rising pipe 800.
Before preposition pH regulator device 100 is located at water inlet pipe 300, for regulating the pH of organic waste water.Preposition pH regulator device 100 includes pH proofing unit, means for feeding acid or adder-subtractor (not shown) etc.PH proofing unit detects the pH value of organic waste water in real time, and means for feeding acid or adder-subtractor carry out acid adding according to pH detected result or add alkali, and the pH value of organic waste water are adjusted between 2.5 ~ 3.
Cavity is offered in base 200 inside, can be used for being cached with organic waste water.
Water inlet pipe 300 is located on base 200 also deeply in the internal cavities of base 200.In the outside of base 200, water inlet pipe 300 is provided with water inlet control valve 310.In the inside of base 200, water inlet pipe 300 offers multiple equally distributed prosopyle 320.The opening up setting of prosopyle 320.The organic waste water passed into from prosopyle 320 or Clean-tap water first can be buffered in the internal cavities of base 200 and enter reaction chamber 700 again.
PH monitoring device 400 is located on base 200, and deeply in the internal cavities of base 200, for the potential of hydrogen of the organic waste water that Real-Time Monitoring passes into, judges whether reaction conditions meets the requirements, and can again adjust pH value according to pH value.
Ventpipe 500 is located on base 200, and deeply in base 200.The part of ventpipe 500 outside base 200 is provided with air valve 510.In the inside of base 200, the air vent openings of ventpipe 500 towards towards the opposite with the opening of prosopyle 320, and is uniformly distributed.Ventpipe 500, for passing into air in base 200, can play stirring and elicitation effect on the one hand, on the other hand, pass into air, for follow-up micro-electrolysis reaction provides oxygen atmosphere.
Suck-back evacuated tube 600 is located on base 300, and deeply in base 200.The part of suck-back evacuated tube 600 outside base 200 is provided with exhaust-valve 610.In the inside of base 200, suck-back evacuated tube 600 is connected with suction unit, and it offers multiple drain hole that Open Side Down 620, for regularly getting rid of the solid matter of sedimentation in waste water.
Reactor 700 is communicated with prosopyle 320.Polynary coal iron carbon filler is filled with, for filtering and light electrolysis organic waste water in reactor 700.In the present embodiment, reactor 700 has two-layer, is respectively the first reaction chamber 710 and the second reaction chamber 720.First reaction chamber 710 to be placed on base 200 and to be communicated with prosopyle 320.Second reaction chamber 720 is layered on the first reaction chamber 710, and is communicated with the first reaction chamber 710.Waste water can enter the second reaction chamber 720 via water inlet pipe 300, first reaction chamber 710 successively.
First reaction chamber 710 and the second reaction chamber 720 are filled with the different polynary coal iron carbon filler of mean particle size respectively.The mean particle size of the polynary coal iron carbon filler in the first reaction chamber 710 is greater than the mean particle size of the polynary coal iron carbon filler in the second reaction chamber 720, and also namely the first reaction chamber 710 and the second reaction chamber 720 constitute staged reactor.Polynary coal iron carbon filler particle in first reaction chamber 710 is thick, and if mean particle size is within the scope of 30-40mm, thus tamped density is sparse, if density is 60-80%, is conducive to filtering larger solid impurity, and carries out preliminary micro-electrolysis reaction with organic waste water.Polynary coal iron carbon filler particle in second reaction chamber 720 is thin, and if mean particle size is within the scope of 10-20mm, thus tamped density is fine and closely woven, if density is 50-70%, is conducive to filtering less solid impurity, and carries out degree of depth micro-electrolysis reaction with organic waste water.By arranging the reactor of multi-stage reaction chamber, the organic waste water can process multiple different concns, polluting in various degree, particularly high concentrated organic wastewater, filter and light electrolysis through preliminary at bottom, flow into high level again and carry out depth type filtration and light electrolysis, there is the advantage continuing efficiently, do not harden, while significantly removing organic pollutant, improve the biodegradability of organic waste water, for follow-up biological treatment is had laid a good foundation.
Further, in the present embodiment, polynary coal iron carbon filler is contained in the first plastic filler basket 712 and the second plastic filler basket 722.Wherein said plastics can as good plastic materials of erosion resistance such as polyethylene (PE).As shown in Figures 2 and 3, first plastic filler basket 712 and the second plastic filler basket 722 to be all detachably fixed in reaction chamber and stacked setting, wherein the first plastic filler basket 712 is for the larger polynary coal iron carbon filler of splendid attire mean particle size, and the second plastic filler basket 722 is for the less polynary coal iron carbon filler of splendid attire mean particle size.Be vesicular structure at the bottom of the basket of the first plastic filler basket 712 and the second plastic filler basket 722, wherein, the aperture at the bottom of the first plastic filler basket 712 basket is greater than the basket underfill aperture of the second plastic filler basket 722.In addition, be provided with for the stiffening web of reinforcing structure stability and repeated hole or the hanger structure etc. for slinging for weight handling equipment in the first plastic filler basket 712 and the second plastic filler basket 722.By being arranged on the detachable plastic filler basket structure in reaction chamber, can conveniently carry out adding and adjusting filler.
Above-mentioned polynary coal iron carbon filler is in atmosphere of inert gases, by iron, carbon and metal catalytic element according to after the ratio mixing of composition quality Fe:68-85%, C:10-30%, metal catalytic element: 1%-5%, after sintering 5-8 hour with the mould of different size at 1050 DEG C, obtain all size porous alloy structure polynary coal iron carbon filler.Wherein, metal catalytic element can be, but not limited at least one metal in platinum, palladium, rhodium, silver and ruthenium.This polynary coal iron carbon filler integrates oxidation, reduction, galvanic deposit, flocculation, absorption, bridge formation, volume are swept and the several functions such as co-precipitation.The organic waste water of difficult degradation is main on microelectrolysis process there is electrochemical oxidation, reduction, the attached collection of the electricity of discharge and recharge to flco and the combined effect to effects such as the cohesion of the katalysis of reaction and electrochemical products, the absorption of nascent state flco and the net of bed is caught, filtrations.The organic waste water Anodic iron rot that this polynary coal iron carbon filler is passing into air is very fast, a large amount of Fe
2+enter in waste water, not only effectively overcome anode passivation, and produce the nascent state Fe with greater activity
2+[H], can with many component generation redox reactions in waste water, destroy coloring matter chromophoric group or auxochrome group structure, even chain rupture in waste water, make polymer toxicity organic pollutant in waste water change into small molecules or be easy to degradable chemical; Consume hydrogen ion in aerated reaction simultaneously, the pH value of waste water is raised, for follow-up flocculation reaction creates good condition, save reagent cost.
Can understand, in other embodiments, this reactor 700 also can be provided with the reaction chamber of 3,4 or more quantity, can stackedly arrange between each reaction chamber, also can place side by side, as long as by organic waste water successively by each reaction chamber, and flow to top from the bottom of each reaction chamber; Accordingly, along the flow direction of organic waste water, the mean particle size of the polynary coal iron carbon filler in reaction chamber reduces successively.Further, can understand, in other embodiments, this wastewater treatment equipment 10 can not contain at least one component in pH monitoring device 400, ventpipe 500 and suck-back evacuated tube 600.
Rising pipe 800 is located at the top of the second reaction chamber, for by the organic waste water after process or the discharge such as Clean-tap water.In the present embodiment, the top of the second reaction chamber is provided with a cavity, rising pipe 800 and this cavity connects, and in the outside of reaction chamber, rising pipe 800 is provided with outlet water control valve 810.
In addition, present embodiment additionally provides a kind of method of wastewater treatment, and it carries out purifying treatment by using above-mentioned wastewater treatment equipment to organic waste water.As shown in Figure 4, this method of wastewater treatment comprises the steps:
Step S910: by the pH regulator to 2.5 of organic waste water ~ 3.
Step S920: organic waste water is passed in wastewater treatment equipment, and carry out physical filtering and microelectrolysis processing in the reactor entering multi-stage reaction chamber from prosopyle.
Step S930: discharge the organic waste water through purifying treatment from rising pipe.
Specifically in the present embodiment, the treatment scheme of organic waste water is as follows:
PH is adjusted to 2.5-3 by preposition pH regulator device 100 by original organic waste water, then the inside of base 200 is entered by water inlet pipe 300, waste water evenly imports by the water inlet water distribution system of water inlet pipe 300, enter reaction chamber 700 gently, whether met by the pH monitoring device 400 monitoring continuously waste water reaction condition be arranged on base 200; Open ventpipe 500 simultaneously, ventilate slowly, simple agitation waste water, water conservancy diversion waste water, toward upper reaches, to utilize in air oxygen by reacted ferrous oxidation; Waste water flows through the multi-stage reaction chamber being loaded with polynary coal iron carbon filler gently, first by thick polynary coal iron carbon filler, the large suspended substance of preliminary interception, then thin polynary coal iron carbon filler is flow through, realize simple filter effect, constantly carry out deferred reaction when wastewater streams crosses polynary coal iron carbon system simultaneously, larger molecular organics is degraded to small organism, to remove most organism.After organic waste water stops 1.5-2 hour in device, reach predefined process effect, the water shoot 800 finally above the second reaction chamber 720 flows out.After this wastewater treatment equipment 10 runs for some time, exhaust-valve 610 can be opened, drain in treating processes and be deposited on the impurity such as mud bottom base 200.
Backwash operation: first quit work, opens ventpipe 500, tunes up air flow, rinses fully, after static several minutes, open exhaust-valve 610 emptying to polynary coal iron carbon filler.After emptying, close exhaust-valve 610, inject tap water from rising pipe 800, repeat above-mentioned steps cleaning once.
Add or change filler: occur extremely when this wastewater treatment equipment 10 processes water outlet or after using the long period, polynary coal iron carbon filler can be adjusted or change polynary coal iron carbon filler.First exhaust-valve 610 is opened emptying, then the second plastic filler basket 722 is vertically up hung out, then the first plastic filler basket 712 is vertically up hung out, situation is supplemented or adjustment filler as required.Then first the first plastic filler basket 712 is vertically put down, then the second plastic filler basket 722 is vertically put down, namely complete and add or change filler.
Above-mentioned wastewater treatment equipment 10 and method of wastewater treatment thereof, be there is by design the reactor 700 of multi-stage reaction chamber, the mean particle size of the polynary coal iron carbon filler in reactor 700 reduces successively, thus organic waste water can be filtered layer by layer, and with polynary coal iron carbon filler generation micro-electrolysis reaction in reaction chamber, along with the reduction of the granular size of polynary coal iron carbon filler, specific surface knot increases gradually, the organic waste water of multiple different concns can be processed, particularly high concentrated organic wastewater, filter and light electrolysis through preliminary at bottom, flow into high level again and carry out depth type filtration and light electrolysis, have and continue efficiently, the advantage do not hardened, while significantly removing organic pollutant, improve the biodegradability of organic waste water, for follow-up biological treatment is had laid a good foundation.
This wastewater treatment equipment 10 current collection chemical reaction, oxidation, reduction, electricity flocculation, co-precipitation etc. are multi-functional in integrally, there is the advantages such as broad spectrum is strong, applied widely, treatment effect is good, not electricity consumption, cost is low, strong operability, filler are replaceable, nothing blocks and harden, be through engineering approaches can be applied to the agent technology of difficult degradation toxicity organic waste water at present, in decolouring, toxicity reduction, open loop chain rupture, remove COD and improve in wastewater biodegradability (B/C) etc. and widely applied.
It is below specific embodiment part
The composition of the polynary coal iron carbon filler that following examples adopt and mass percent are Fe:80%, C:28%, metal catalytic element: 2%.
Embodiment 1, Wastewater from Pig Farm
Polynary coal iron carbon filler particle in first reaction chamber 710 is thick, and mean particle size is within the scope of 30-40mm, and tamped density is 60%, is conducive to filtering larger solid impurity, and carries out preliminary micro-electrolysis reaction with organic waste water.Polynary coal iron carbon filler particle in second reaction chamber 720 is thin, and mean particle size is within the scope of 10-20mm, and tamped density is 80%.
Former water sample COD:10163.05mg/L before process; Use traditional common light electrolysis method process water outlet COD:5790.43mg/L; Use the wastewater treatment equipment water outlet COD:3884.27mg/L of polynary coal iron carbon of the present invention.
Embodiment 2, modified starch waste water
Polynary coal iron carbon filler particle in first reaction chamber 710 is thick, and mean particle size is within the scope of 30-40mm, and tamped density is 65%, is conducive to filtering larger solid impurity, and carries out preliminary micro-electrolysis reaction with organic waste water.Polynary coal iron carbon filler particle in second reaction chamber 720 is thin, and mean particle size is within the scope of 10-20mm, and tamped density is 80%.
Former water sample COD:12000.45 mg/L before process, uses traditional common light electrolysis method process water outlet COD:5875.21 mg/L, uses the wastewater treatment equipment water outlet COD:4184.42mg/L of polynary coal iron carbon of the present invention.
As can be seen from above-mentioned two embodiments, the wastewater treatment equipment of the employing polynary coal iron carbon of the application of the invention is after multiple-stage treatment, the COD value of waste water obviously reduces, and the conventional iron carbon material of relatively traditional employing carries out uniprocessing, waste water COD after process also obviously reduces, thus illustrate, the wastewater treatment equipment purification of waste water of employing of the present invention polynary coal iron carbon is effective.
Above two embodiments are only for illustration of the effect of the wastewater treatment equipment process waste water of employing the present invention polynary coal iron carbon, can understand, in other embodiments, for different waste water situations, can the data such as the composition of polynary coal iron carbon filler in appropriate design first reaction chamber 710 and the second reaction chamber 720 and size, to reach the object of better process organic waste water.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. adopt a wastewater treatment equipment for polynary coal iron carbon, for purification of organic waste water, it is characterized in that, this wastewater treatment equipment comprises:
Base;
Reactor, is located on described base, comprises the multistage reaction chamber be communicated with successively, is filled with polynary coal iron carbon filler in described reaction chamber, and along the flow direction of organic waste water, the mean particle size of the polynary coal iron carbon filler in described reaction chamber reduces successively;
Water inlet pipe, penetrates in described base, and described water inlet pipe is provided with the prosopyle that multiple and described reaction chamber is communicated with; And
Rising pipe, is located at the top of described reactor and is communicated with the described reaction chamber of last step.
2. wastewater treatment equipment as claimed in claim 1, it is characterized in that, be provided with the plastic filler basket for coal iron carbon filler polynary described in splendid attire in described reaction chamber, described plastic filler basket is detachable to be fixed in described reaction chamber and to be vesicular structure at the bottom of the basket of described plastic filler basket.
3. wastewater treatment equipment as claimed in claim 1 or 2, it is characterized in that, described reactor comprises two-stage reaction room, be respectively the first reaction chamber and the second reaction chamber, described first reaction chamber is placed on described base, described second reaction chamber is placed on described first reaction chamber, and the opening of described prosopyle upward.
4. wastewater treatment equipment as claimed in claim 1, it is characterized in that, the mean particle size of the polynary coal iron carbon filler in described first reaction chamber is 30-40mm, and tamped density is 60-80%; The mean particle size of the polynary coal iron carbon filler in described second reaction chamber is 10-20mm, and tamped density is 50-70%.
5. the wastewater treatment equipment as described in claim 1 or 4, it is characterized in that, described polynary coal iron carbon filler is the porous alloy structure that iron, carbon and metal catalytic element are formed, wherein, the mass percent of each composition is: iron: 68-85%, carbon: 10-30%, metal catalytic element: 1%-5%.
6. wastewater treatment equipment as claimed in claim 1, is characterized in that, also comprise preposition pH regulator device, described preposition pH regulator device be positioned at described water inlet pipe before for regulating the pH value of organic waste water before organic waste water is passed into described water inlet pipe.
7. wastewater treatment equipment as claimed in claim 1, is characterized in that, also comprise be located on described base for detecting the pH monitoring device passing into the organic waste water pH value of described water inlet pipe in real time.
8. wastewater treatment equipment as claimed in claim 1, is characterized in that, also comprise the ventpipe be located in described base, towards the opposite towards the opening with described prosopyle of the pore of described ventpipe.
9. wastewater treatment equipment as claimed in claim 1, it is characterized in that, also comprise and being located on described base and the suck-back evacuated tube penetrated in described base, described suck-back evacuated tube offers multiple drain hole that Open Side Down, for the solid matter of sedimentation in emptying described reactor.
10. a method of wastewater treatment, is characterized in that, use the wastewater treatment equipment according to any one of claim 1 ~ 9, this method of wastewater treatment comprises the steps:
The pH value of described organic waste water is adjusted to 2.5 ~ 3;
Described organic waste water is passed in described wastewater treatment equipment, and enters described reactor from described prosopyle and carry out physical filtering and microelectrolysis processing;
The organic waste water through rough purification process is discharged from described rising pipe.
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| CN115353194A (en) * | 2022-09-20 | 2022-11-18 | 上海泓济环保科技股份有限公司 | Multi-element electrochemical-generating integrated filler and preparation method thereof |
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