CN105819550B - A kind of production method of magnesium carbon micro-electrolysis filler - Google Patents
A kind of production method of magnesium carbon micro-electrolysis filler Download PDFInfo
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- CN105819550B CN105819550B CN201510813889.XA CN201510813889A CN105819550B CN 105819550 B CN105819550 B CN 105819550B CN 201510813889 A CN201510813889 A CN 201510813889A CN 105819550 B CN105819550 B CN 105819550B
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Abstract
The present invention is field of environment engineering, the production method for especially preparing magnesium carbon micro-electrolysis filler as primary raw material using magnesium powder, clay and Powdered Activated Carbon.The specific process is as follows: a kind of production method of magnesium carbon micro-electrolysis filler, comprising the following steps: (1), choose magnesium powder, Powdered Activated Carbon and clay, they are uniformly mixed；(2), uniformly mixed powder raw material is injected into mold；(3), it puts into the rotary kiln of starvation, rotary kiln is heated to 650-680 DEG C under conditions of anaerobic, revolving speed are greater than 100rpm；(4), the inclination angle for controlling rotary kiln makes total heating dwell times of the mold in kiln be greater than 20min；(5), pass through ultrasonic oscillation in rotary kiln end；(6), mold is passed into the quick cooling chamber of anaerobic；(7), finished product is obtained.By using above scheme, the present invention provides a kind of filler preparation method that the reaction of magnesium carbon micro-electrolysis is made using magnesium powder, Powdered Activated Carbon, clay as main raw material(s).
Description
Technical field
The present invention is field of environment engineering, especially prepares magnesium carbon by primary raw material of magnesium powder, clay and Powdered Activated Carbon
The production method of micro-electrolysis stuffing.
Technical background
Micro-electrolysis method is using Principles of Metal Erosion, and the primary battery of formation is by a series of processes and acts on to having in waste water
Machine pollutant carries out electrochemical treatments.Containing in conductive electrolyte solution, metallic particles and carbon granule will form numerous
Small primary battery forms electric field in its action space, and electrochemical corrosion effect, new on electrode then just has occurred in the solution
One systems such as the reduction of the coagulation of the metal ion generated in the reduction of ecological hydrogen, electrode, electric field action, metal
Column physical-chemical reaction process, so that useless Organic substance in water etc. be made to be removed by these processes.
Existing water process micro-electrolysis stuffing almost all, as raw metal, utilizes the trivalent of light electrolysis generation using iron
The flocculation etc. of iron realizes the removal to dirty Organic substance in water, is manufactured however, existing iron-carbon micro-electrolysis filler has
Trouble, effluent color dilution are high, are easy passivation, cannot achieve in waste water the disadvantages of the removal of ammonia nitrogen.
Summary of the invention
The present invention overcome the problems, such as it is of the existing technology, provide it is a kind of with magnesium powder, Powdered Activated Carbon, clay for main former material
The filler preparation method of material production magnesium carbon micro-electrolysis reaction.
The specific process is as follows:
A method of preparing magnesium carbon micro-electrolysis filler, comprising the following steps: (1), choose partial size less than 10 mesh magnesium powder,
Partial size less than 100 mesh powder active carbons and partial size less than the clay of 100 mesh, wherein magnesium powder and Powdered Activated Carbon and clay powders
Mass percent be 60-85%:10-30%:5-30%, they uniformly mix；(2), uniformly mixed powder raw material is injected
Into mold and by mold close；(3), it puts into the rotary kiln of starvation, is greater than the condition of 100rpm in anaerobic, revolving speed
It is lower that rotary kiln is heated to 650-680 DEG C；(4), the inclination angle for controlling rotary kiln, when making total heating dwell of the mold in kiln
Between be greater than 20 min；(5), material is further mixed by ultrasonic oscillation in rotary kiln end；(6), mold is passed into nothing
The quick cooling chamber of oxygen makes the thawing magnesium metal in mold be quickly cooled down solidification；(7), mold is sealed off, finished product is obtained.
Further scheme of the invention is: the die shape is that Bauer annular or Raschig ring shape are spherical or cylindric
Or graininess, mold are made of the cast iron or copper metal material for being resistant to 700 DEG C or more high temperature, the inner surface of mold passes through oxidation
Passivation Treatment makes it easy to move back mould.
Further scheme of the invention is: the Vltrasonic device of ultrasonic oscillation is arranged in rotary kiln end, function in step (5)
Rate is greater than 1000W, and mold acts on 10s or more under ultrasonic conditions.
Further scheme of the invention is: by the control of the modes such as the temperature difference, convection current in step (6), making mold and inside
The magnesium metal of thawing temperature in 3 min by 650-680 DEG C is reduced to 600 DEG C hereinafter, solidifying the magnesium metal of melting quickly.
Advantages of the present invention is as follows:
1. melting and process of setting of the filler prepared by the present invention by magnesium powder, effectively increase the intensity of filler.
2. acted on by high-speed rotating rotary kiln and ultrasonic wave, can further promote powdery granule active carbon and
Clay being uniformly distributed in molten metal magnesium solution, is conducive to light electrolysis galvanic interaction.
3. effective to increase by planforms such as mold special Pall ring, Raschig ring, spherical, cylindric, graininess
The specific surface area of filler is conducive to galvanic interaction.
4. filler of the present invention not only has micro-electrolysis reaction ability possessed by traditional iron-carbon micro-electrolysis filler, but also has
There is struvite crystallization reaction, the organic matter in sewage can be effectively removed simultaneously and recycle phosphorus and ammonia nitrogen in sewage, and can be used as
Slow release fertilizer reuse.
5. technique of the invention is relatively easy to promote, easy to industrialized production.
Specific embodiment
A specific embodiment of the invention is as follows: by magnesium powder that partial size is 50 mesh, partial size be 100 mesh powder active carbons and
Partial size is the clay of 100 mesh as raw material, according to magnesium powder: Powdered Activated Carbon: clay powders=70%:20%:10% mass percentage
Than being uniformly mixed, introduced a material into after mixing casting internal effective diameter made of iron be 20 mm, effectively a height of 40 mm Bauer annular
In shape mold, and by mold close, wherein die shape can or graininess spherical or cylindric for Raschig ring shape, mold by
The cast iron or copper metal material of 700 DEG C of tolerance or more high temperature are constituted, and the inner surface of mold is handled by oxidative deactivation to be made it easy to
Move back mould.By 0.3 m3Mold be put into dischargeable capacity be 1 m3In rotary kiln, and under conditions of logical nitrogen, rotary kiln is controlled
Temperature be 670 DEG C, revolving speed is 100 rpm, heating dwell times of the mold in rotary kiln are 20 min, while being turned round
The ultrasonic unit that power is 1000W is arranged in kiln end, and Vltrasonic device setting is greater than 1000W, mold in rotary kiln end, power
12s is acted under ultrasonic conditions, further such that molten metal suspension is further uniformly mixed in mold, then by mould
Tool be passed through in the quick cooling chamber of logical nitrogen so that the metal suspension liquid in the metal suspension liquid mold in mold can 3min with
It is interior to be reduced to 600 DEG C or less quickly solidifications by 650-680 DEG C, the magnesium carbon micro-electrolysis filler of sizing is formed after cooling opening.
It is 100 mg/L using this filler removal COD, phosphorus is 5 mg/L, and ammonia nitrogen is 15 mg/L by pretreated poultry
Fowl breeding wastewater, to COD removal rate up to 90% or more in 30min, 95% or more phosphorus, ammonia nitrogen removal frank reaches 95 or more, water outlet
It can reach urban wastewater treatment discharge standard level-one B or more.
Claims (5)
1. a kind of production method of magnesium carbon micro-electrolysis filler, comprising the following steps:
Clay of the partial size less than the magnesium powders of 10 mesh, partial size less than 100 mesh powder active carbons and partial size less than 100 mesh is chosen,
The mass percent of middle magnesium powder and Powdered Activated Carbon and clay powders is 60-85%:10-30%:5-30%, they are uniformly mixed；
Uniformly mixed powder raw material is injected into mold and by mold close；
Mold is put into the rotary kiln of starvation, is heated rotary kiln under conditions of anaerobic, revolving speed are greater than 100rpm
To 650-680 DEG C；
The inclination angle for controlling rotary kiln makes total heating dwell times of the mold in kiln be greater than 20 min；
In rotary kiln end by ultrasonic oscillation, material is further mixed；
Mold is passed into the quick cooling chamber of anaerobic, the thawing magnesium metal in mold is made to be quickly cooled down solidification；
Mold is sealed off, finished product is obtained.
2. the production method of magnesium carbon micro-electrolysis filler according to claim 1, it is characterized in that: the die shape is Bauer
Annular or Raschig ring shape is spherical or cylindric or graininess, mold by 700 DEG C of tolerance or more high temperature cast iron or copper metal material
Texture is at the inner surface of mold is handled by oxidative deactivation to be made it easy to move back mould.
3. the production method of magnesium carbon micro-electrolysis filler according to claim 1 or 2, it is characterized in that: ultrasonic wave in step (5)
The Vltrasonic device setting of concussion is in rotary kiln end, and power is greater than 1000W, and mold acts on 10s or more under ultrasonic conditions.
4. the production method of magnesium carbon micro-electrolysis filler according to claim 1 or 2, it is characterized in that: passing through temperature in step (6)
The control of the modes such as difference, convection current is reduced to mold and the internal magnesium metal melted temperature in 3 min by 650-680 DEG C
600 DEG C hereinafter, solidify the magnesium metal of melting quickly.
5. the production method of magnesium carbon micro-electrolysis filler according to claim 3, it is characterized in that: in step (6) by the temperature difference,
The control of the modes such as convection current makes mold and the internal magnesium metal melted the temperature in 3 min by 650-680 DEG C be reduced to 600
DEG C hereinafter, solidifying the magnesium metal of melting quickly.
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| CN201510813889.XA CN105819550B (en) | 2015-11-23 | 2015-11-23 | A kind of production method of magnesium carbon micro-electrolysis filler |
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| CN105819550B true CN105819550B (en) | 2019-01-15 |
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| CN109908740A (en) * | 2016-09-18 | 2019-06-21 | 江苏省环境科学研究院 | A kind of honeycombed grain material and the method for preparing the honeycombed grain material using melting waste slag |
| CN109133442A (en) * | 2018-09-26 | 2019-01-04 | 上海力脉环保设备有限公司 | It is drained outside a kind of pair of breeding wastewater and propose the improved system of mark and its process |
| CN109110985A (en) * | 2018-09-26 | 2019-01-01 | 上海力脉环保设备有限公司 | A kind of wastewater treatment method of denitrogenation dephosphorizing recycling phosphorus |
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| CN101659504A (en) * | 2009-09-09 | 2010-03-03 | 周瑞兴 | Laboratory waste water treatment method and device |
| CN103145220A (en) * | 2011-12-06 | 2013-06-12 | 赵艳姝 | Filler for acid-base neutralization |
| CN103253741A (en) * | 2013-05-10 | 2013-08-21 | 山东大学 | Method for preparing anti-hardening granular ceramic iron-carbon micro-electrolysis filler from industrial wastes |
| CN103880122A (en) * | 2014-03-17 | 2014-06-25 | 山东大学 | Method for preparing anti-hardening granular burning-free iron-carbon microelectrolysis filler |
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| JPS52142664A (en) * | 1976-05-25 | 1977-11-28 | Nakamura Minoru | Method of depoisining ferrocyanide |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659504A (en) * | 2009-09-09 | 2010-03-03 | 周瑞兴 | Laboratory waste water treatment method and device |
| CN103145220A (en) * | 2011-12-06 | 2013-06-12 | 赵艳姝 | Filler for acid-base neutralization |
| CN103253741A (en) * | 2013-05-10 | 2013-08-21 | 山东大学 | Method for preparing anti-hardening granular ceramic iron-carbon micro-electrolysis filler from industrial wastes |
| CN103880122A (en) * | 2014-03-17 | 2014-06-25 | 山东大学 | Method for preparing anti-hardening granular burning-free iron-carbon microelectrolysis filler |
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