CN105198075A - Preparation method for magnetic biological carrier applied to sewage treatment - Google Patents

Preparation method for magnetic biological carrier applied to sewage treatment Download PDF

Info

Publication number
CN105198075A
CN105198075A CN201410295834.XA CN201410295834A CN105198075A CN 105198075 A CN105198075 A CN 105198075A CN 201410295834 A CN201410295834 A CN 201410295834A CN 105198075 A CN105198075 A CN 105198075A
Authority
CN
China
Prior art keywords
magnetic
particle
carrier
molecular polymer
particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410295834.XA
Other languages
Chinese (zh)
Inventor
刘维艮
Original Assignee
刘维艮
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 刘维艮 filed Critical 刘维艮
Priority to CN201410295834.XA priority Critical patent/CN105198075A/en
Publication of CN105198075A publication Critical patent/CN105198075A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Abstract

A preparation method for a magnetic biological carrier applied to sewage treatment. The magnetic biological carrier is characterized by comprising the following components: 7-21wt% of magnetic-particles and 79-93wt% of high-molecular polymer, wherein the magnetic-particles are one or a mixture of iron-containing magnetic substances; the high-molecular polymer comprises one or a mixture of high molecular materials; preparation steps are as follows: 1), drying magnetic-particles with the grain size of 0.01-0.05 mm at 80-120 DEG C and preserving in a closed manner at the normal temperature; 2), washing the high-molecular polymer with the density of 0.90-1.30 g/cm<3> and then drying; 3), mixing the magnetic-particles obtained in the step 1) with the high-molecular polymer obtained in the 2) through a stirrer, feeding the mixture into an extruder, melting under the action of the extruder so as to enable the magnetic-particles to be fully mixed with the high-molecular polymer, extruding and cutting off to form high-molecular polymer particles containing magnetic-particles; 4), grinding the high-molecular polymer particles obtained in the 3) and screening through a sieve so as to obtain magnetic carrier particles with the grain size of 0.043-0.315 mm and the density of 1.0-1.4 g/cm<3>, wherein the magnetic carrier particles are used as magnetic biological carriers for sewage treatment.

Description

A kind of preparation method being applied to the magnetic bio-carrier of sewage disposal
Technical field
The invention belongs to field of Environment Protection, relate to a kind of magnetic bio-carrier of disposing of sewage for suspended biological embrane method and preparation method thereof, specifically be in the aeration tank that is added in Wastewater Treated by Activated Sludge Process sewage of the magnetic bio-carrier that the method is prepared, thus the biological concentration that improve in aeration tank, improve sewage treating efficiency, meanwhile, magnetic carrier can major part reclaim, and again utilizes after demoulding.
Background technology
At present, existing sewage work of China has more than 40% to adopt traditional activated sludge process, and it is large that traditional activated sludge process exists floor space, the shortcomings such as the treatment time is long, and unit surface processing efficiency is not high.Therefore, improve sewage treating efficiency on the original basis, shorten treatment cycle and become problem in the urgent need to address.
In aeration tank, add carrier contribute to improving biological concentration, improve sewage treating efficiency.At present, the bio-carrier adopted both at home and abroad mainly contains: pottery, polystyrene spheres, gac, hard coal, fine quartz sand, yellow sand, flue dust, slag, baton round etc.There is the shortcomings such as pump around circuit energy consumption is large, carrier demoulding difficulty, operational administrative are complicated in them.Coke fines adsorptivity is strong, and due to surface irregularity, biofilm is easy, but insufficient strength, easily damaged and number of dropouts is very large during demoulding.Flue dust is as bio-carrier except having the similar character of same coke fines, and also the light weight because its particle diameter is little, more easily runs off, need often to supplement.In general quartz sand be the comparatively good vector of aerobic biological fluid-bed technical finesse waste water, but because of its smooth surface not easy to be filmed.
Research shows, although carrier granule that is tiny, light weight has larger specific surface area than thick carrier granule, processing efficiency has more advantage, but be difficult to sedimentation, guarantee can only be operated below entrainment velocity particle not to be taken out of, so there is higher turnover rate, limit operation of equipment ability; The carrier granule sedimentation that density is large is fast, but usual this kind of material surface is smooth, and biofilm is slower.
Employing magnetic bio-carrier effectively can solve the problem existing for present stage sewage disposal carrier.First because magnetic bio-carrier surface irregularity, specific surface area is large, easy to be filmed, and density is close with sewage, can well with sewage fluidization, same energy consumption can drop to very low; Because carrier has magnetic, so its magnetic can be utilized to carry out most recovery, re-use after demoulding, improve recycle efficiency; The cost of preparation is also relatively low, good in economic efficiency.
Summary of the invention
The object of the invention is to overcome the existing bio-carrier shortcomings such as pump around circuit energy consumption is large in the treatment of waste water, carrier demoulding difficulty, operational administrative are complicated, thus provide one to have magnetic response performance, bigger serface, easy to be filmed, the magnetic bio-carrier that density is close with sewage.The present invention for carrier with the magnetic-particle of coated high molecular polymer, is added to aeration tank, not only increases the biological concentration in pond, compared with common bio-aeration pool, improve COD clearance, and magnetic carrier reclaims by magnetic separator, realize recycling of carrier.
Another object of the present invention is to provide a kind of preparation method being applied to the magnetic bio-carrier of sewage disposal.
Magnetic bio-carrier for the treatment of sewage comprises: magnetic-particle, a high molecular polymer, and its component is as follows:
Magnetic-particle 7-21wt%;
High molecular polymer 79-93wt%;
Described magnetic-particle is the mixture of the wherein one or more than one of the magnetic substance of iron content;
Described high molecular polymer comprises the mixture of the wherein one or more than one of macromolecular material.
The magnetic substance of described iron content comprises Z 250, metal iron powder, magnetite.
Described macromolecular material comprises polyethylene, polypropylene, polystyrene; Rubber powder.
For the treatment of a preparation method for the magnetic bio-carrier of sewage, comprise the steps:
1) by particle diameter at the magnetic-particle of 0.01 ~ 0.05mm after 80 ~ 120 DEG C of dryings, the airtight preservation of normal temperature;
2) be 0.90 ~ 1.30g/cm by density 3high molecular polymerization composition granule washing post-drying;
3) by step 1) magnetic-particle that obtains and step 2) the high molecular polymerization composition granule that obtains, by a certain percentage, after agitator fully mixes, be added in forcing machine, under the effect of forcing machine, through melting, magnetic-particle is fully mixed with high molecular polymerization composition granule, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.
4) by step 3) the high molecular polymer particle abrasion that obtains, sieving obtains the magnetic carrier that particle diameter is 0.043 ~ 0.315mm, obtains the magnetic bio-carrier for the treatment of sewage.
The present invention compared with prior art, has the following advantages:
1), when magnetic bio-carrier provided by the invention is used for sewage disposal, treatment effect is good;
2) magnetic bio-carrier provided by the invention is reusable, reduces the cost of sewage disposal;
3) magnetic bio-carrier preparation method provided by the invention is simple, and required reagent and material are easy to get;
4) magnetic bio-carrier provided by the invention can adopt waste high polymer (i.e. waste or used plastics, waste old), while making waste product resource circulation utilization, also reduces the production cost of this carrier.
5) magnetic bio-carrier preparation method provided by the invention has used for reference extrusion moulding in Plastics Industry and melting principle, adopt melt-blending process to prepare magnetic composite, advantage is that equipment is simple, and controllability is strong, with short production cycle, be easy to realize suitability for industrialized production.
Embodiment
Embodiment 1
Select polyvinyl resin (5000g) and Fe 3o 4magnetic-particle (800g) is after agitator fully mixes, be added in plastics extruder, in the machine barrel of plastics extruder, through melting, magnetic-particle fully mixed with polyethylene resin particles, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.16 ~ 0.315mm, density is about 1.11g/cm 3, obtain magnetic bio-carrier S-1.
Embodiment 2
Select acrylic resin (4000g) with metal iron powder magnetic-particle (700g) after agitator fully mixes, be added in plastics extruder, in the machine barrel of plastics extruder, through melting, magnetic-particle is fully mixed with acrylic resin particle, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.076 ~ 0.16mm, density is about 1.04g/cm 3, obtain magnetic bio-carrier S-2.
Embodiment 3
Select polystyrene resin (5000g) with magnetite powder magnetic-particle (900g) after agitator fully mixes, be added in plastics extruder, in the machine barrel of plastics extruder, through melting, magnetic-particle is fully mixed with polystyrene resin beads, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.043 ~ 0.076mm, density is about 1.20g/cm 3, obtain magnetic bio-carrier S-3.
Embodiment 4
Select waste and old resin material (major ingredient is polystyrene) (5000g) with magnetite powder magnetic-particle (1000g) after agitator fully mixes, be added in plastics extruder, in the machine barrel of plastics extruder, through melting, magnetic-particle is fully mixed with waste and old resin material particle, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.076 ~ 0.16mm, density is about 1.29g/cm 3, obtain magnetic bio-carrier S-4.
Embodiment 5
Select rubber powder (5000g) with magnetite powder magnetic-particle (900g) after agitator fully mixes, be added in plastics extruder, in the machine barrel of Rubber Extruder, through melting, magnetic-particle is fully mixed with powder rubber particle, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.043 ~ 0.076mm, density is about 1.40g/cm 3, obtain magnetic bio-carrier S-5.
Embodiment 6
Select waste old material (6000g) with magnetite powder magnetic-particle (900g) after agitator fully mixes, be added in plastics extruder, in the machine barrel of plastics extruder, through melting, magnetic-particle is fully mixed with waste old material granule, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.076 ~ 0.16mm, density is about 1.32g/cm 3, obtain magnetic bio-carrier S-6.
Embodiment 7
After selecting acrylic resin and polystyrene resin mass ratio 1: 1 to mix (5000g) with ferromagnetic powdered iron ore magnetic-particle (500g) after agitator fully mixes, be added in plastics extruder, in the machine barrel of plastics extruder, through melting, magnetic-particle is fully mixed with acrylic resin, polystyrene resin beads, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle.Then by high molecular polymer particle abrasion, sieving obtains the magnetic carrier that particle diameter is about 0.076 ~ 0.16mm, density is about 1.07g/cm 3, obtain magnetic bio-carrier S-7.

Claims (2)

1. be applied to a preparation method for the magnetic bio-carrier of disposing of sewage, it is characterized in that magnetic bio-carrier component is as follows: magnetic-particle 7-21wt%; High molecular polymer 79-93wt%; Described magnetic-particle is the mixture of the wherein one or more than one of the magnetic substance of iron content; Described high molecular polymer comprises: the mixture of macromolecular material wherein one or more than one; Preparation process is as follows: 1) by particle diameter at the magnetic-particle of 0.01 ~ 0.05mm after 80 ~ 120 DEG C of dryings, the airtight preservation of normal temperature; 2) be 0.90 ~ 1.30g/cm by density 3high molecular polymerization composition granule washing post-drying; 3) by step 1) magnetic-particle that obtains and step 2) the high molecular polymerization composition granule that obtains, after agitator mixing, be added in forcing machine, under the effect of forcing machine, through melting, magnetic-particle is fully mixed with high molecular polymerization composition granule, extrude, cut off, form the high molecular polymer particulate containing magnetic-particle; 4) by step 3) the high molecular polymer particle abrasion that obtains, sieving obtains the magnetic carrier particles that particle diameter is 0.043 ~ 0.315mm, and density is 1.0 ~ 1.4g/cm 3, serve as the magnetic bio-carrier of disposing of sewage.
2. by the preparation method being applied to the magnetic bio-carrier of disposing of sewage according to claim 1, it is characterized in that: the magnetic substance of described iron content is Z 250, metal iron powder, magnetite ore particles.
CN201410295834.XA 2014-06-27 2014-06-27 Preparation method for magnetic biological carrier applied to sewage treatment Pending CN105198075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410295834.XA CN105198075A (en) 2014-06-27 2014-06-27 Preparation method for magnetic biological carrier applied to sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410295834.XA CN105198075A (en) 2014-06-27 2014-06-27 Preparation method for magnetic biological carrier applied to sewage treatment

Publications (1)

Publication Number Publication Date
CN105198075A true CN105198075A (en) 2015-12-30

Family

ID=54946110

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410295834.XA Pending CN105198075A (en) 2014-06-27 2014-06-27 Preparation method for magnetic biological carrier applied to sewage treatment

Country Status (1)

Country Link
CN (1) CN105198075A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967322A (en) * 2016-07-18 2016-09-28 胡勇飞 Immobilized microbial ball used in sewage treatment plant and operating method thereof
CN108913679A (en) * 2018-06-12 2018-11-30 河海大学 A kind of biofilm reactor magnetic bio-carrier and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105967322A (en) * 2016-07-18 2016-09-28 胡勇飞 Immobilized microbial ball used in sewage treatment plant and operating method thereof
CN108913679A (en) * 2018-06-12 2018-11-30 河海大学 A kind of biofilm reactor magnetic bio-carrier and preparation method thereof
CN108913679B (en) * 2018-06-12 2021-07-27 河海大学 Magnetic biological carrier for biofilm reactor and preparation method thereof

Similar Documents

Publication Publication Date Title
CN101254976B (en) Preparation method of magnetic bio-carrier for treating sewage water
CN101244884A (en) Wastewater treatment method using magnetism biological carrier and magnetic separation technique
CN100486687C (en) Plastic-skeleton bentonite bentonite composite adsorbent and its production
KR100990730B1 (en) Material for treating nitrate nitrogen and producing method thereof, method and apparatus for eliminating nitrate nitrogen from water, and material for denitration
CN104609567B (en) Preparation method of suspended packing bioreactor and application thereof
CN102225806A (en) Magnetic biological carrier and preparation method thereof
CN105198075A (en) Preparation method for magnetic biological carrier applied to sewage treatment
CN107344794A (en) Phenol wastewater qualified discharge processing system
CN108726623B (en) Sewage treatment method based on recyclable modified porous ceramic material
CN102259974B (en) Magnetite-zeolite magnetic biological carrier material, as well as preparation method and application method thereof
CN108147833A (en) A kind of preparation method of iron tailings base low temperature haydite
CN204892545U (en) Papermaking discarded object resources recovery and recycle processing system
CN108608604A (en) A kind of separation method of plastic refuse
CN108773882A (en) A kind of Inorganic complex coagulant and its preparation method and application
CN107286429A (en) A kind of method of incineration of refuse flyash recycling and products thereof
CN103755170A (en) Red mud desertification process and equipment
JP6544607B1 (en) Soil purification system
CN103157449B (en) Composite film and preparation method thereof
CN101279792A (en) Forming method of magnetic biological carrier for sewage disposal
CN106630033A (en) Electromagnetic-adsorption-separation micro-electrolytic reaction device and reaction method
CN204689689U (en) Serialization, anti-compaction micro electrolytic reaction system
JP2005000122A (en) Organism-supporting material and method for producing the same
CN106268698A (en) Feature board for Adsorption of Pyridine and preparation method thereof
JP6544608B1 (en) Soil purification system
CN106311174A (en) Functional plate for thiofuran adsorption and preparation method thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20151230