CN104628091B - A kind of multiple catalyzing micro-electrolysis stuffing and preparation method thereof and application - Google Patents
A kind of multiple catalyzing micro-electrolysis stuffing and preparation method thereof and application Download PDFInfo
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- CN104628091B CN104628091B CN201510036512.8A CN201510036512A CN104628091B CN 104628091 B CN104628091 B CN 104628091B CN 201510036512 A CN201510036512 A CN 201510036512A CN 104628091 B CN104628091 B CN 104628091B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F1/46114—Electrodes in particulate form or with conductive and/or non conductive particles between them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/04—Surfactants, used as part of a formulation or alone
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Abstract
The invention discloses a kind of multiple catalyzing micro-electrolysis stuffing and preparation method thereof and application, belong to field of waste water treatment. This micro-electrolysis stuffing is taking iron powder, aluminium powder, activated carbon powder, copper powder, zinc powder, diatomite, ammonium chloride, sodium tetraborate as primary raw material, through weighing, mix, moulding, oven dry roasting, the step such as cooling prepare, this micro-electrolysis stuffing is used for to sewage disposal, wastewater biodegradability significantly improves, filler is difficult for hardening, and is difficult for passivation, and life cycle is long, filler installs additional convenient, fast, safeguards simple.
Description
Technical field
The present invention relates to a kind of micro-electrolysis stuffing and preparation method thereof and application, relate in particular to a kind of multiple catalyzing micro-electrolysis stuffingAnd preparation method thereof with application, belong to field of waste water treatment.
Background technology
The improvement of the chemical waste water of high concentration, difficult for biological degradation is very large with technical difficulty economically, adopts conventional thingReason, chemistry and biological method are processed this class waste water, and not only cost is high, efficiency is low but also very difficult qualified discharge, cause seriousEnvironmental pollution.
Micro electrolysis tech is effective preprocessing means of processing high concentration, difficult for biological degradation wastewater from chemical industry, and its operation principle is profitBy micro-electrolysis material self the generation potential difference being filled in waste water, waste water is carried out to electrolytic treatments, just by high molecular complexitySubstance decomposition is small-molecule substance, improves wastewater biodegradability, reaches the object of degradation of contaminant.
At present, traditional micro electrolysis tech adopts the simple mixtures of iron filings and activated carbon as micro-electrolysis material, in reality mostlyIn the engineering application process of border, the long-term use at filling surface of the filler of this kind forms one deck passivating film, blocked in water poisonousHarmful substance contacts with filler, affects treatment effect, and iron filings easily harden, and packing layer hardens into as a whole, and current areDitch stream mode, crosses flow rate and declines, and reaction speed reduces, and in addition, granular mixed fillers is in regular supplementing and changingIn journey, exist inconvenience.
Summary of the invention
For the above-mentioned shortcoming of traditional micro-electrolysis stuffing, the invention discloses a kind of multiple catalyzing micro-electrolysis stuffing and preparation side thereofMethod and application.
This micro-electrolysis stuffing taking iron powder, aluminium powder, activated carbon powder, copper powder, zinc powder, diatomite, ammonium chloride, sodium tetraborate asPrimary raw material, through weighing, mix, moulding, oven dry roasting, the step such as cooling prepare, is used for this micro-electrolysis stuffingIn sewage disposal, can make wastewater biodegradability significantly improve, meanwhile, filler has and is difficult for hardening, and is difficult for passivation, uses weekPhase is long, installs filler additional convenient, fast, safeguards the advantages such as simple.
One of the object of the invention is open a kind of multiple catalyzing micro-electrolysis stuffing, and this micro-electrolysis stuffing is prepared from by following raw material:Iron powder, aluminium powder, activated carbon powder, copper powder, zinc powder, diatomite, ammonium chloride, sodium tetraborate.
Preferably, this micro-electrolysis stuffing is prepared from by the raw material of following weight portion:
Iron powder: 30-40;
Aluminium powder: 20-30;
Activated carbon powder: 10-20;
Copper powder: 5-10;
Zinc powder: 3-8;
Diatomite: 5-15;
Ammonium chloride: 2-5;
Sodium tetraborate: 2-5.
As one of preferred version of the present invention, this micro-electrolysis stuffing is prepared from by the raw material of following weight portion:
Iron powder: 32;
Aluminium powder: 28;
Activated carbon powder: 12;
Copper powder: 8;
Zinc powder: 4;
Diatomite: 10;
Ammonium chloride: 4;
Sodium tetraborate: 2.
As two of preferred version of the present invention, this micro-electrolysis is prepared from by the raw material of following weight portion
Iron powder: 40;
Aluminium powder: 22;
Activated carbon powder: 16;
Copper powder: 5;
Zinc powder: 5;
Diatomite: 6;
Ammonium chloride: 2;
Sodium tetraborate: 4.
Two of the object of the invention is to provide a kind of preparation method of multiple catalyzing micro-electrolysis stuffing, and this preparation method comprises following stepRapid:
1) weigh and mix: weigh respectively iron powder, aluminium powder, activated carbon powder, copper powder, zinc powder, diatomite, the chlorination of mass partsAmmonium, sodium tetraborate, add water after fully mixing and obtain semi-finished product A;
2) extrusion modling: by step 1) in semi-finished product A pack in roller bearing forcing press, under 150-200KN pressure, suppressOvalisation semi-finished product B;
3) in temperature dry: by step 2) in semi-finished product B be positioned in baking oven, at temperature 60-110 DEG C, dry 24 hoursMoulding obtains semi-finished product C;
4) high-temperature roasting: by step 3) in semi-finished product C put into stove, be filled with nitrogen, be warming up to 400-500 DEG C of roasting20-30 minute, is then warming up to 900-1000 DEG C of roasting 60-90 minute and obtains semi-finished product D;
5) cooling forming: by step 4) in semi-finished product D in stove, naturally cool to below 100 DEG C, take out and be placed on ventilationPlace continues to be cooled to room temperature, obtains micro-electrolysis stuffing.
Three of object of the present invention is to provide the one application of above-mentioned polynary micro-electrolysis stuffing, and above-mentioned polynary micro-electrolysis stuffing existsApplication in wastewater treatment, can be used for processing the chemical waste water of high concentration, difficult for biological degradation, complicated component.
The embodiment of the present invention 4 and embodiment 5 adopt aeration contrast test, use respectively polynary micro-electrolysis prepared by the present invention to fill outMaterial and certain commercially available oval micro-electrolysis stuffing are processed certain chemical industrial park comprehensive wastewater and certain pharmacy corporation medicinal chemicals workshopThe hc effluent of discharge, experiment showed, under the identical prerequisite of experiment condition, the micro-electrolysis stuffing place that adopts the present invention to prepareWhen reason waste water, the removal effect of its COD, colourity is more excellent, and wastewater biodegradability increase rate is larger, has obtained unexpectedTechnique effect.
Meanwhile, dyeing waste water coagulant of the present invention and preparation method thereof, compared with prior art, its advantage is as follows:
1, in the polynary micro-electrolysis stuffing of the present invention, adopt the composite of the elements such as iron, aluminium, carbon, copper, zinc, formed iron-Solder for Al-Cu Joint WeldingThe polynary micro cell reaction system of-zinc-active carbon, the polynary micro cell potential difference of formation is large, has reaction speed fast, to waste waterIn organic oxidation efficiency advantages of higher.
2, the polynary micro-electrolysis stuffing of the present invention is compared with traditional Single Iron-carbon micro-electrolysis filler, and the scope of application is wider, one,Under sour environment, between iron/copper-carbon, can form potential difference, its two, under neutrality and alkaline environment, aluminium-zinc-carbon itBetween can form potential difference, the therefore better adaptability of this filler to water quality.
3, the polynary micro-electrolysis stuffing of the present invention is each element to be sintered under reducing atmosphere into the carrier with stronger mechanical performance,Filler active carbon and diatomite in the time of high temperature sintering are conducive to increase the porosity that becomes of filler inside, make filler inner produce a large amount ofMicrocellular structure, has increased the contact area of waste water and filler, has strengthened micro-electrolysis strength, has improved reaction efficiency.
4, the polynary micro-electrolysis stuffing of the present invention is introduced ammonium chloride, the NH that ammonium chloride produces under hot conditions3Play pore-creating effect,Increased porosity and the specific area of filler, the filler of loose structure effectively prevents hardening or forming between different filler unitsChannel, thus the long-term stability operation of micro-electrolysis system ensured.
5, the polynary micro-electrolysis stuffing of the present invention is introduced sodium tetraborate, and sodium tetraborate plays the effect of dispersant, has promoted multiple goldBelong to element and be mixed to form filler internal voids, and can effectively reduce iron mud output, slow down the knot of filler top layer and inner cavityScar and fouling.
6, the polynary micro-electrolysis stuffing raw material of the present invention is easy to get, and preparation technology is simple, installs filler additional convenient, fast, makes at fillerUse after some cycles, without replacing, can realize continuing, stablizing and transport of micro-electrolysis system by the mode of directly adding on a small quantityOK.
Detailed description of the invention
Below will further illustrate the present invention by specific embodiment, but it should be appreciated by those skilled in the art that the present invention is concreteEmbodiment does not also limit the present invention in any way. Take up an official post and how all fall into protection model of the present invention with replacement on basis of the present inventionWithin enclosing.
Embodiment 1: the preparation of polynary micro-electrolysis stuffing
Weigh respectively iron powder 32kg, aluminium powder 26kg, activated carbon powder 12kg, copper powder 8kg, zinc powder 4kg, diatomite 10kg,Ammonium chloride 4kg, sodium tetraborate 2kg, add water after fully mixing and obtain semi-finished product A, packs semi-finished product A into roller bearing pressureIn machine, under 150-200KN pressure, be pressed into oval semi-finished product B, semi-finished product B be positioned in baking oven, in temperatureAt 60-110 DEG C, dry moulding in 24 hours and obtain semi-finished product C, semi-finished product C is put into stove, be filled with nitrogen, be warming up to400-500 DEG C of roasting 20-30 minute, is then warming up to 900-1000 DEG C of roasting 60-90 minute and obtains semi-finished product D, will half one-tenthProduct D naturally cools to below 100 DEG C in stove, and taking-up is placed on ventilation and continues to be cooled to room temperature, obtains the micro-electricity of multiple catalyzingSeparate filler.
Embodiment 2: the preparation of polynary micro-electrolysis stuffing
Weigh respectively iron powder 40kg, aluminium powder 22kg, activated carbon powder 16kg, copper powder 5kg, zinc powder 5kg, diatomite 6kg,Ammonium chloride 2kg, sodium tetraborate 4kg, add water after fully mixing and obtain semi-finished product A, packs semi-finished product A into roller bearing pressureIn machine, under 150-200KN pressure, be pressed into oval semi-finished product B, semi-finished product B be positioned in baking oven, in temperatureAt 60-110 DEG C, dry moulding in 24 hours and obtain semi-finished product C, semi-finished product C is put into stove, be filled with nitrogen, be warming up to400-500 DEG C of roasting 20-30 minute, is then warming up to 900-1000 DEG C of roasting 60-90 minute and obtains semi-finished product D, will half one-tenthProduct D naturally cools to below 100 DEG C in stove, and taking-up is placed on ventilation and continues to be cooled to room temperature, obtains the micro-electricity of multiple catalyzingSeparate filler.
Embodiment 3: the preparation of polynary micro-electrolysis stuffing
Weigh respectively iron powder 35kg, aluminium powder 25kg, activated carbon powder 13kg, copper powder 6kg, zinc powder 5kg, diatomite 10kg,Ammonium chloride 3kg, sodium tetraborate 3kg, add water after fully mixing and obtain semi-finished product A, packs semi-finished product A into roller bearing pressureIn machine, under 150-200KN pressure, be pressed into oval semi-finished product B, semi-finished product B be positioned in baking oven, in temperatureAt 60-110 DEG C, dry moulding in 24 hours and obtain semi-finished product C, semi-finished product C is put into stove, be filled with nitrogen, be warming up to400-500 DEG C of roasting 20-30 minute, is then warming up to 900-1000 DEG C of roasting 60-90 minute and obtains semi-finished product D, will half one-tenthProduct D naturally cools to below 100 DEG C in stove, and taking-up is placed on ventilation and continues to be cooled to room temperature, obtains the micro-electricity of multiple catalyzingSeparate filler.
Embodiment 4: polynary micro-electrolysis stuffing prepared by the present invention and the contrast experiment of certain commercially available oval micro-electrolysis stuffing
Experiment waste water is taken from certain chemical industrial park comprehensive wastewater, and this industrial park is distributed with dyeing, wiring board industry, platingIndustry, oil refining industry and other organic chemical industry's industries, water quality index is in table one.
Experimental technique is as follows: at two high 80cm, in the cylindrical reactor of diameter 10cm, add aeration head, be respectively charged into heapAmass polynary micro-electrolysis stuffing (experimental group) and certain commercially available oval micro-electrolysis stuffing that highly prepared by the embodiment 1 for 60cm (rightAccording to group), then in two reactors, add respectively above-mentioned wastewater from chemical industry to 70cm place, open aeration, control dissolved oxygen is1-2mg/L, reacted after 2 hours, staticly settled 30min, got its supernatant liquor, carried out COD, colourity, BOD5Detection.
Experimental result is as shown in Table 1:
Table one: polynary micro-electrolysis stuffing prepared by the present invention and the contrast experiment of certain commercially available oval micro-electrolysis stuffing
As shown in Table 1: when polynary micro-electrolysis stuffing prepared by the present invention is processed wastewater from chemical industry, its COD clearance is 58.2%,Chroma removal rate is that 60%, B/C is increased to 0.325 by 0.188; When certain commercially available oval micro-electrolysis stuffing is processed wastewater from chemical industry,Its COD clearance is 51.1%, and chroma removal rate is that 50%, B/C is increased to 0.295 by 0.188. Visible, at experiment barUnder the identical prerequisite of part, while adopting micro-electrolysis stuffing prepared by the present invention to process wastewater from chemical industry, the removal effect of its COD, colourityMore excellent, wastewater biodegradability increase rate is larger.
Embodiment 5: polynary micro-electrolysis stuffing prepared by the present invention and the contrast experiment of certain commercially available oval micro-electrolysis stuffing
Experiment waste water is taken from the hc effluent of certain pharmacy corporation medicinal chemicals workshop discharge, and this waste water contains residual doctorMedicine intermediate and residual organic solvent, water quality index is in table two.
Experimental technique is as follows: at two high 80cm, in the cylindrical reactor of diameter 10cm, add aeration head, be respectively charged into heapAmass polynary micro-electrolysis stuffing (experimental group) and certain commercially available oval micro-electrolysis stuffing that highly prepared by the embodiment 1 for 60cm (rightAccording to group), then in two reactors, add respectively above-mentioned wastewater from chemical industry to 70cm place, open aeration, control dissolved oxygen is1-2mg/L, reacted after 2 hours, staticly settled 30min, got its supernatant liquor, carried out COD, colourity, BOD5Detection.
Experimental result is as shown in Table 2:
Table two: polynary micro-electrolysis stuffing prepared by the present invention and the contrast experiment of certain commercially available oval micro-electrolysis stuffing
As shown in Table 2: when polynary micro-electrolysis stuffing prepared by the present invention is processed wastewater from chemical industry, its COD clearance is 63.0%,Chroma removal rate is that 60%, B/C is increased to 0.448 by 0.241; When certain commercially available oval micro-electrolysis stuffing is processed wastewater from chemical industry,Its COD clearance is 49.3%, and chroma removal rate is that 50%, B/C is increased to 0.355 by 0.241. Visible, at experiment barUnder the identical prerequisite of part, while adopting micro-electrolysis stuffing Pharmaceutical Wastewater Treatment prepared by the present invention, the removal effect of its COD, colourityMore excellent, wastewater biodegradability increase rate is larger.
Claims (5)
1. for a multiple catalyzing micro-electrolysis stuffing for wastewater treatment, it is characterized in that it is prepared from by the raw material of following weight portion:
Iron powder: 30-40;
Aluminium powder: 20-30;
Activated carbon powder: 10-20;
Copper powder: 5-10;
Zinc powder: 3-8;
Diatomite: 5-15;
Ammonium chloride: 2-5;
Sodium tetraborate: 2-5.
2. multiple catalyzing micro-electrolysis stuffing according to claim 1, is characterized in that it is by the raw material preparation of following weight portionBecome:
Iron powder: 32;
Aluminium powder: 28;
Activated carbon powder: 12;
Copper powder: 8;
Zinc powder: 4;
Diatomite: 10;
Ammonium chloride: 4;
Sodium tetraborate: 2.
3. multiple catalyzing micro-electrolysis stuffing according to claim 1, is characterized in that it is by the raw material preparation of following weight portionBecome:
Iron powder: 40;
Aluminium powder: 22;
Activated carbon powder: 16;
Copper powder: 5;
Zinc powder: 5;
Diatomite: 6;
Ammonium chloride: 2;
Sodium tetraborate: 4.
4. according to the arbitrary described multiple catalyzing micro-electrolysis stuffing of claim 1-3, it is characterized in that described ferrous powder granules diameterFor 60-100 order; Aluminum particle diameter is 60-100 order; Activated carbon granule diameter is 100-120 order; Copper powder particle diameterFor 60-100 order; Zinc particle diameter is 60-100 order; Diatomite particle diameter is 100-120 order; Ammonium chloride, four boronAcid sodium is commercially available technical grade.
5. the preparation method of multiple catalyzing micro-electrolysis stuffing according to claim 4, is characterized in that comprising the following steps:
1) weigh and mix: weigh respectively iron powder, aluminium powder, activated carbon powder, copper powder, zinc powder, diatomite, the chlorination of mass partsAmmonium, sodium tetraborate, add water after fully mixing and obtain semi-finished product A;
2) extrusion modling: by step 1) in semi-finished product A pack in roller bearing forcing press, under 150-200KN pressure, suppressOvalisation semi-finished product B;
3) in temperature dry: by step 2) in semi-finished product B be positioned in baking oven, at temperature 60-110 DEG C, dry 24 hoursMoulding obtains semi-finished product C;
4) high-temperature roasting: by step 3) in semi-finished product C put into stove, be filled with nitrogen, be warming up to 400-500 DEG C of roasting20-30 minute, is then warming up to 900-1000 DEG C of roasting 60-90 minute and obtains semi-finished product D;
5) cooling forming: by step 4) in semi-finished product D in stove, naturally cool to below 100 DEG C, take out and be placed on ventilationPlace continues to be cooled to room temperature, obtains multiple catalyzing micro-electrolysis stuffing.
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| CN107012316A (en) * | 2017-04-07 | 2017-08-04 | 江西理工大学 | The method that many first micro-electrolysis stuffings of Regularization Fe Ni C are produced with lateritic nickel ore |
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| CN105110427B (en) * | 2015-09-30 | 2017-12-01 | 东营国安化工有限公司 | A kind of compound micro-electrolysis stuffing and preparation method and application |
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| CN109911992B (en) * | 2019-03-20 | 2021-11-19 | 浙江省环境保护科学设计研究院 | Preparation method and application of iron-based multi-metal alloy micro-electrolysis filler |
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| CN113304752A (en) * | 2021-06-11 | 2021-08-27 | 上海复沅环保工程有限公司 | Cracking reduction catalyst for sewage treatment and preparation method thereof |
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| CN102887568A (en) * | 2011-07-19 | 2013-01-23 | 张宇 | Filler used for wastewater purification |
| CN104003483B (en) * | 2014-06-19 | 2015-11-18 | 福州大学 | A kind of bamboo charcoal base light electrolysis porous ceramic grain filler and preparation method thereof |
| CN104108772B (en) * | 2014-08-05 | 2016-01-06 | 广州巨邦环保工程设备有限公司 | A kind of micro-electrolysis stuffing for sewage disposal and preparation method thereof |
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| CN107012316A (en) * | 2017-04-07 | 2017-08-04 | 江西理工大学 | The method that many first micro-electrolysis stuffings of Regularization Fe Ni C are produced with lateritic nickel ore |
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