CN204454746U - Water treatment carrier - Google Patents
Water treatment carrier Download PDFInfo
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- CN204454746U CN204454746U CN201520043185.4U CN201520043185U CN204454746U CN 204454746 U CN204454746 U CN 204454746U CN 201520043185 U CN201520043185 U CN 201520043185U CN 204454746 U CN204454746 U CN 204454746U
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Abstract
The utility model provides a kind of water treatment carrier, it is formed by having the polyurethane foam being communicated to inner pore from carrier surface, described polyurethane foam, its shape is square, rectangular parallelepiped or right cylinder, water-soluble swollen after square or rectangular parallelepiped all length of sides or water-soluble swollen after cylinder diameter and be highly 8 ~ 100mm, water-soluble swollen after average pore size be 0.2 ~ 2.0mm, water-soluble swollen after average pore number be 10 ~ 50/25mm, water-soluble swollen after pore between most riblet wall thickness be below 0.3mm, its volume swelling rate is 150 ~ 1000%.The utility model has excellent water settleability, and surface and carrier inside all can adsorb fixing animal and plant cells and microorganism, and unit carrier volume has larger animal and plant cells and microorganism maintenance dose.
Description
Technical field
The utility model relates to a kind of by animal and plant cells and the microorganism water treatment carrier in conjunction with the Porous used after immobilization.
Background technology
Carry out using in the waste disposal plant of sewage disposal have various carrier utilizing animal and plant cells and microorganism.Such as, the aqueous gel carriers such as polyacrylamide gel carrier, polyethylene glycol gel carrier, polyvinyl alcohol gel carrier and Lalgine gel carrier (non-porous matter) etc. are a little by animal and plant cells and microorganism embedding are fixed on the carrier used in gel.On the other hand, also having the porous carriers (non-aqueous gel) etc. such as Polyurethane carrier, cellulose carrier, polypropylene carrier, polyvinyl formal carrier and ceramic monolith, is a little by fixing the surface bound carrier of animal and plant cells and microorganism in Porous surface adsorption.
Such as, Patent Document 1 discloses the non-porous matter water treatment carrier be made up of thermoplasticity water absorbent gel, but due to its proportion higher, be therefore not suitable as the water treatment carrier in fluidized-bed.Meanwhile, carrier surface is difficult to adsorb fixing animal and plant cells and microorganism, and the surface-area of substrate monolith is less, the animal and plant cells therefore on unit carrier area and the maintenance dose of microorganism less.
In addition, Patent Document 2 discloses a kind of continuous poriferous ceramic monolith, it is using pottery as base material, and has the rib wall (skeleton part) forming multiple pore continuously, but because its proportion is higher, be therefore also not suitable for use in the water treatment carrier in fluidized-bed.
In addition, in patent documentation 3, also disclose a kind of polyurethane foam water treatment carrier, it can be used for fluidized-bed, fixed bed, and volume swelling rate does not belong to water-swellable 100 ~ 150%.
But the pore internal residual of this water treatment carrier has air, therefore there is the shortcoming of water settleability difference.Meanwhile, the carrier inside after it does not record sedimentation is for ease of adsorbing the associated viscera of the shape of fixing animal and plant cells and microorganism.Such as, do not clearly state water-soluble swollen after pore size, rib wall thickness etc. about being communicated with the concrete shape of pore, meanwhile, do not record that to can be used as water treatment carrier ability when specifically making what kind of shape effective at all yet.
That is, although disclose the water treatment carrier be made up of polyurethane foam, also openly water settleability is unexcellent at all, and surface and carrier inside all can adsorb the water treatment carrier of fixing animal and plant cells and microorganism.
Prior art document
Patent documentation
Patent documentation 1 Japanese Unexamined Patent Publication 10-136980 publication
Patent documentation 2 Japanese Unexamined Patent Publication 2-39877 publication
Patent documentation 3 Japanese Unexamined Patent Publication 2009-220079 publication
The purpose of this utility model is, provides a kind of water settleability excellent, and surface and carrier inside all can adsorb fixing animal and plant cells and microorganism, and its unit carrier volume can be made to have the water treatment carrier of larger animal and plant cells and microorganism maintenance dose.
Utility model content
For solving above-mentioned problem, water treatment carrier of the present utility model is a kind of porous carrier that be made up of water-swellable polyurethane foam, that have connection pore.
That is, the utility model provides a kind of water treatment carrier be made up of the water-swellable polyurethane foam with following volume swelling rate, stomatal number and pore size.
1, a kind of water treatment carrier, it is formed by having the polyurethane foam being communicated to inner pore from carrier surface, it is characterized in that, described polyurethane foam, its shape is square, rectangular parallelepiped or right cylinder, water-soluble swollen after square or rectangular parallelepiped all length of sides or water-soluble swollen after cylinder diameter and be highly 8 ~ 100mm, water-soluble swollen after average pore size be 0.2 ~ 2.0mm, water-soluble swollen after average pore number be 10 ~ 50/25mm, water-soluble swollen after pore between most riblet wall thickness be below 0.3mm, the volume swelling rate of carrying out defining in following formula (1) is for 150 ~ 1000%,
Formula (1): volume swelling rate (%)=(water-soluble swollen after volume/water-soluble swollen before volume) × 100.
2, in above-mentioned water treatment carrier, described volume swelling rate is 150 ~ 500%.
3, in above-mentioned water treatment carrier, water-soluble swollen after described average pore size at 0.5 ~ 2.0mm, and described average pore number is 15 ~ 25/25mm.
4, in above-mentioned water treatment carrier, water-soluble swollen after described most riblet wall thickness be below 0.1mm.
5, in above-mentioned water treatment carrier, water-soluble swollen after square all length of sides of rectangular parallelepiped or water-soluble swollen after cylinder diameter and be highly 8 ~ 50mm.
Water-swellable polyurethane foam of the present utility model, as water treatment carrier, it has excellent water settleability, and its surface and carrier inside all can adsorb fixing animal and plant cells and microorganism, and its unit carrier volume can be made to have larger animal and plant cells and microorganism maintenance dose.
The water treatment carrier be made up of polyurethane foam of the present utility model just can produce water-soluble swollen by base material self is moisture, and pore internal space becomes broad.After broad space Li Shui enters, the air of pore inside relies on hydraulic pressure to be discharged efficiently, and therefore water treatment carrier of the present utility model has excellent water settleability.In addition, pore internal space is not only broad, is still communicated with pore simultaneously, and therefore water treatment carrier of the present utility model has excellent water-permeable simultaneously.Due to the raising of water-permeable, liquid can be inner by being communicated with pore glibly, thus enable water treatment carrier of the present utility model that animal and plant cells and microorganism adsorption are fixed to carrier inside.
Accompanying drawing explanation
Fig. 1 is the sketch chart of square shape water treatment carrier.
Fig. 2 is the sketch chart of rectangular shape water treatment carrier.
Fig. 3 is the sketch chart of cylindrical shape water treatment carrier.
Fig. 4 is the enlarged view of pore and rib wall.
Embodiment
Below, with reference to accompanying drawing, the utility model is elaborated.The average pore size of polyurethane foam of the present utility model is 0.2 ~ 2.0mm, and the connection pore size with 0.5 ~ 2.0mm is then better.Now, by microscope photographing carrier, measure the long and short diameter of about 50 pores, and the diameter mean value obtained after being converted into positive circle is as average pore size.When average pore size is less than 0.2mm, animal and plant cells and microorganism are difficult to enter carrier inside, meanwhile, can block connection pore after animal and plant cells and microorganic adhesion, propagation, thus make carrier inside cannot by sufficient liquid.
The water treatment carrier be made up of polyurethane foam of the present utility model, can be used for any one in fixed bed and fluidized-bed.Simultaneously, consider the size for the treatment of trough, with the factor such as the contact efficiency of mud and load of microorganisms efficiency, carrier can be shaped to the arbitrary shape such as bar-shaped comprising square, rectangular parallelepiped and right cylinder, but because its size is less, wear resistance is more excellent, therefore in size, water-soluble swollen after square or all length of side L1 of rectangular parallelepiped, L2, L3 or water-soluble swollen after cylinder diameter d and height h at 8 ~ 100mm, preferably it is at 8 ~ 50mm.Specifically, the edge lengths L1 after moisture is the square of 9 ~ 20mm; Width L2 and depth L3 is 8mm, height L1 is the rectangular parallelepiped of 9 ~ 16mm; Or diameter d be 8mm, height h be the carriers such as the right cylinder of 12 ~ 20mm is optimum size.
Polyurethane foam of the present utility model is 150 ~ 1000% by the moisture volume swelling ratio of definition in formula (1), and preferred version is in 150 ~ 500% scopes.
Formula (1): volume swelling rate (%)=(water-soluble swollen after volume/water-soluble swollen before volume) × 100
Now, polyurethane foam is dried at 100 DEG C volume when weight no longer reduces as water-soluble swollen before volume, to be immersed in the pure water of 25 DEG C until volume when size no longer changes as water-soluble swollen after volume.If volume swelling rate is less than 150%, then distinguishes not quite with conventional polyurethanes foam, aqueous gel base material can not be referred to as.If volume swelling rate is more than 1000%, then water-soluble swollen after water treatment support strength will excessive descent, do not possess practicality.
In addition, polyurethane foam of the present utility model water-soluble swollen after average pore number be 10 ~ 50/25mm, its preferred version is at 15 ~ 25/25mm.Stomatal number is by using microscope photographing carrier, and the numerical value obtained after the stomatal number (individual/25mm) in average every 25mm length is measured.Using the mean value of stomatal number observed values more than optional 3 places as average pore number.Water-soluble swollen after average pore number less than 10/25mm time, the surface-area of porous insert will diminish, and animal and plant cells and microorganism maintenance dose will decline.
Further, have the pore 1 being communicated with carrier surface and inside in polyurethane foam of the present utility model, be namely communicated with pore, therefore carrier surface area is larger.Animal and plant cells and microorganism will be fixed on carrier by a large amount of absorption, and are absorbed and fixed at the animal and plant cells of carrier inside and microorganism also not easily peels off when flowing.
The opposing party, in polyurethane foam of the present utility model, rib wall 2 is skeleton parts that the multiple pores produced by foaming are communicated with the connection pore formed.As shown in Figure 4, rib wall thickness t between pore is uneven, and most riblet wall thickness refers to the numerical value by the most thin section of the aforementioned rib wall thickness of microscope photographing.Polyurethane foam of the present utility model water-soluble swollen after most riblet wall thickness be below 0.3mm, its preferred version is below 0.1mm.Water-soluble swollen after most riblet wall thickness when being greater than 0.3mm, the surface-area of substrate monolith can diminish, and therefore the maintenance dose of animal and plant cells and microorganism will tail off, thus processing efficiency is declined.
The manufacture method of polyurethane foam can adopt known method, that is, after being uniformly mixed raw material, injecting and foam with liquid state, and making it solidify.Meanwhile, if can ensure polyurethane foam meet moisture volume swelling ratio 150 ~ 1000% condition, raw material also can use known raw material.
Water-soluble swollen front polyurethane foam prepares a block-shaped square for length of side 7mm, and moisture volume swelling ratio is the water treatment carrier of 199%.Water-soluble swollen after become the square that the length of side is 8.8mm, water-soluble swollen after average pore size become 1.14mm, water-soluble swollen after average pore number be 20/25mm, water-soluble swollen after most riblet wall thickness be 0.05mm.
Embodiment 1
Water-soluble swollen front polyurethane foam prepares a block-shaped square for length of side 7mm, and moisture volume swelling ratio is the water treatment carrier of 199%.Water-soluble swollen after become the square that the length of side is 8.8mm, water-soluble swollen after average pore size become 1.14mm, water-soluble swollen after average pore number be 20/25mm, water-soluble swollen after most riblet wall thickness be 0.05mm.
Embodiment 2
Water-soluble swollen front polyurethane foam prepares a block-shaped square for length of side 7mm, and moisture volume swelling ratio is the water treatment carrier of 388%.Water-soluble swollen after become the square that the length of side is 11mm, water-soluble swollen after average pore size become 1.25mm, water-soluble swollen after average pore number be 17/25mm, water-soluble swollen after most riblet wall thickness be 0.21mm.
Embodiment 3
Water-soluble swollen front polyurethane foam prepares a block-shaped square for length of side 7mm, and moisture volume swelling ratio is the water treatment carrier of 283%.Water-soluble swollen after become the square that the length of side is 9.9mm, water-soluble swollen after average pore size become 1.80mm, water-soluble swollen after average pore number be 13/25mm, water-soluble swollen after most riblet wall thickness be 0.12mm.
Embodiment 4
The polyurethane foam of embodiment 1 ~ 3 is put into containing in microbic activity mud 3,000mg/l solution, rest on dark place after sealing 1 hour.After putting into solution, carrier starts sedimentation, all carriers sedimentation all during recovery immediately.After polyurethane foam after reclaiming is cut, all carriers from surface to centre portions in all visually can confirm mud.Can confirm thus, not only carrier surface, carrier inside is adsorbable fixation of microbe also.
As mentioned above, the water treatment carrier having the polyurethane foam of specific modality feature has excellent water settleability, surface and carrier inside all can adsorb fixing animal and plant cells and microorganism, and therefore, unit carrier volume has larger animal and plant cells and microorganism maintenance dose.
Claims (5)
1. a water treatment carrier, it is formed by having the polyurethane foam being communicated to inner pore from carrier surface, it is characterized in that, described polyurethane foam, its shape is square, rectangular parallelepiped or right cylinder, water-soluble swollen after square or rectangular parallelepiped all length of sides or water-soluble swollen after cylinder diameter and be highly 8 ~ 100mm, water-soluble swollen after average pore size be 0.2 ~ 2.0mm, water-soluble swollen after average pore number be 10 ~ 50/25mm, water-soluble swollen after pore between most riblet wall thickness be below 0.3mm, the volume swelling rate of carrying out defining in following formula (1) is for 150 ~ 1000%, formula (1): volume swelling rate (%)=(water-soluble swollen after volume/water-soluble swollen before volume) × 100.
2. water treatment carrier according to claim 1, is characterized in that, described volume swelling rate is 150 ~ 500%.
3. water treatment carrier according to claim 1, is characterized in that, water-soluble swollen after described average pore size at 0.5 ~ 2.0mm, and described average pore number is 15 ~ 25/25mm.
4. water treatment carrier according to claim 1, is characterized in that, water-soluble swollen after described most riblet wall thickness be below 0.1mm.
5. water treatment carrier according to claim 1, is characterized in that, water-soluble swollen after square all length of sides of rectangular parallelepiped or water-soluble swollen after cylinder diameter and be highly 8 ~ 50mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014236986 | 2014-11-21 | ||
| JP2014-236986 | 2014-11-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204454746U true CN204454746U (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520043185.4U Active CN204454746U (en) | 2014-11-21 | 2015-01-22 | Water treatment carrier |
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| CN (1) | CN204454746U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017154A (en) * | 2017-11-16 | 2018-05-11 | 广东省农业科学院农业资源与环境研究所 | A kind of preparation and its application of the compounded mix biological floating bed applied to combined type triple effect |
| CN114269914A (en) * | 2019-09-02 | 2022-04-01 | 日清纺化学株式会社 | Preparation method of microorganism immobilized carrier for water treatment |
-
2015
- 2015-01-22 CN CN201520043185.4U patent/CN204454746U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108017154A (en) * | 2017-11-16 | 2018-05-11 | 广东省农业科学院农业资源与环境研究所 | A kind of preparation and its application of the compounded mix biological floating bed applied to combined type triple effect |
| CN108017154B (en) * | 2017-11-16 | 2020-03-31 | 广东省农业科学院农业资源与环境研究所 | Preparation and application of composite filler applied to combined three-effect ecological floating bed |
| CN114269914A (en) * | 2019-09-02 | 2022-04-01 | 日清纺化学株式会社 | Preparation method of microorganism immobilized carrier for water treatment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |