CN105722795A - Immobilized microorganism carrier, and contact oxidation combination system employing same - Google Patents

Abstract

Provided are an immobilized microorganism carrier for use in a fluidized bed, the carrier having exceptional wear resistance and ability to maintain an aerobic state in the center part of the immobilized microorganism carrier; as well as a water treatment system employing the same. This immobilized microorganism carrier comprises a three-dimensional structure comprising a porous foam and is provided with a prescribed cavity portion, a flow being created within an aeration tank. Due to the formation of the cavity portion, the specific surface area is increased by 10%-20%, as compared with the three-dimensional structure in which the cavity portion has not been formed. This contact oxidation combination system is provided with a fluidized bed zone in which purification treatment takes place by a fluidized bed process, and a fixed bed zone in which purification treatment takes place by a fixed bed process, the zones being arranged adjacently within a water tank for a single purification treatment in which treated water undergoing the purification treatment flows from the upstream side towards the downstream side, and employs the immobilized microorganism carrier as a contact material for the fluidized bed.

Description

Microbial fixed carrier and use its catalytic oxidation hybrid system

Technical field

The present invention relates to the microbial fixed carrier supporting microorganism in the method using microorganism that mud is processed.It addition, be directed to use with the water purification treatment system of this microbial fixed carrier.

Background technology

All the time, the method motion that lower water, draining etc. carry out purified treatment has activated sludge process etc. all.

Activated sludge process is mud and activated sludge to be mixed in aeration tank, carries out aeration and aerobic microbiological in activated sludge makes the dirty substance in mud decompose, makes the method that the activated sludge that surplus has been bred separates with the process water purified.

Patent documentation 1 motion is following invention: in activated sludge process as above, throws in the carrier keeping aerobic microbiological, makes to be attached with microorganism carrier and flow in aeration tank, mud is processed.

It addition, the buoyancy relating to there is appropriateness in the water such as draining of patent documentation 2 motion, and have the microorganism retentivity of excellence and the invention of the Microorganism incubation carrier of durability concurrently.

Patent documentation 3 be disclosed that in drainage sunk well utilize the water treatment carrier being made up of the polyurethane foaming body specified.In the publication, the water treatment carrier that the shape of above-mentioned foaming body is made tubulose etc. uses as fixing bed.On the other hand, in the publication, about situation about above-mentioned water treatment carrier being used as the thermopnore situation etc. of flowing (in aeration tank), illustration is other concrete mode.That is, make tubulose etc. and be provided with technology that the water treatment carrier of cavity portion uses as thermopnore in patent documentation 3 both without open also without enlightening.

What patent documentation 4～7 was recorded is a kind of microbe carrier being made up of Foamex, and it is for making microorganism bond area increase, and this microbe carrier is formed as hollow form.In those references, describe the technology that for the purpose making microorganism bond area increase, microbe carrier is made hollow form, but about the raising of the good oxygen condition of central part and mar proof that maintain microbial fixed carrier, study.

On the other hand, so far, in purified treatment, it is known that utilize the microorganism on the surface being attached to the contact material contacted with the processed water processing object, the method purifying processed water.This is referred to as so-called biomembrance process.In this biomembrance process, utilize following technology: the deliquescent organic fouling product in processed water or Organic substance etc. are taken in by the microorganism on the surface being attached to contact material, form biomembrane, thickening and on the microbial layer of inner side, spread all over aerobic by this biomembrane, killing the microorganism of inner side, biomembrane is from the sur-face peeling of contact material.

The thermopnore mode that the fixing bed mode of the flowing of the contact material in such biological treatment existence restriction processed water and contact material flow along with the flowing of processed water in processed water.

In this case, it was also proposed that a kind of purified treatment not individually using fixing bed mode, thermopnore mode, but among a water purification treatment system and with both motion (patent documentation 8,9).

The applicant it is also proposed by effectively playing the fixing bed mode of biological treatment, the respective favourable face of thermopnore mode, realize the fixed bed process of the raising of purified treatment ability and the Compound Water cleaning treatment system of fluidized bed method, that is, catalytic oxidation hybrid system (patent documentation 10).

Prior art literature

Patent documentation

Patent documentation 1: JP 2008-168204 publication

Patent documentation 2: JP 2002-292385 publication

Patent documentation 3: JP 2009-220079 publication

Patent documentation 4: JP 2003-154386 publication

Patent documentation 5: JP 2001-197885 publication

Patent documentation 6: JP 2003-225686 publication

Patent documentation 7: JP 2006-175311 publication

Patent documentation 8: Unexamined Patent 10-216761 publication

Patent documentation 9: JP 2004-174433 publication

Patent documentation 10: JP 2010-12369 publication

Summary of the invention

Invent problem to be solved

With reference to Fig. 1, the present application problem to be solved is illustrated.

Fig. 1 indicates that the figure of one of existing microbial fixed carrier of use example in activated sludge process.By Fig. 1 is illustrated by Porous foaming body (such as, resinous sponge) microbial fixed carrier 15 of cubic shaped that constitutes render in aeration tank mud in, the aerobic microbiological in activated sludge is supported in microbial fixed carrier 15.

At this, microbial fixed carrier requires have various performance.As one of them, the retentivity of mud can be enumerated.As the microbial fixed carrier used in Treatment of Sludge, in order to improve the maintenance dose of mud, use resin-made sponge material or the hard material such as gelatinous soft material or straw shape.

There is the reverse side of many etc the strong points of the maintenance dose of mud in the microbial fixed carrier being made up of such material, there is the problem being difficult to accumulate the discharge of mud etc in carrier.

When illustrating with reference to Fig. 1, then collided with the wall in aeration tank or other microbial fixed carriers by the flowing of mud at microbial fixed carrier 15, such as, when external force 16a, 16b, 16c, 16d, 16e, 16f act on the respective direction of arrow, the mud near each outer peripheral face of microbial fixed carrier 15 (above, bottom surface, lateral circle surface) flows out (Fig. 1 (a), (b)) to the direction of such as arrow 17a, 17b, 17c, 17d, 17e, 17f, 17k, 17l, 17m, 17n.

But, because the direction of part edge such as arrow 17g, 17h, 17i, 17j of mud flows into the inside of microbial fixed carrier 15, so mud (Fig. 1 (b)) can be remained at the central part 15a of microbial fixed carrier 15.

When the life-time service microbial fixed carrier 15 when central part 15a remains mud, the inside of microbial fixed carrier 15 just becomes anaerobic state from good oxygen condition, and the aerobic microbiological supported reduces, and the process performance of mud likely declines.

It addition, one of the performance required as microbial fixed carrier, mar proof can be enumerated.As it has been described above, microbial fixed carrier 15 by flowing in aeration tank, and collide with the wall in aeration tank or other microbial fixed carriers, therefore easily wear and tear.

For this, the replacement frequency of microbial fixed carrier increases, it is possible to hinder the purified treatment of stable mud.

Therefore, it is an object of the invention to, it is provided that microbial fixed carrier, it maintains the good oxygen condition of central part of microbial fixed carrier, raising mar proof and has characteristic so.

As it has been described above, because biomembrane is from the sur-face peeling of contact material, so one of advantage of biomembrance process being currently known is need not frequent clean contact material.

Not individually use fixing bed mode, the purified treatment of thermopnore mode but all the problem of the problem of the good oxygen condition of contact material central part maintaining thermopnore etc or the mar proof improving contact material etc is not studied among a water purification treatment system and with the motion of both patent documentations 8～10.

It is an object of the invention to, there is provided in a water purification treatment system and with the water purification treatment system of purified treatment fixing bed mode, thermopnore mode, it uses the microbial fixed carrier that improve mar proof as thermopnore, it is possible to the long-term purified treatment ability playing excellence.

For solving the means of problem

In order to solve above-mentioned problem, motion invention below.

[1] microbial fixed carrier, is characterized by, it possesses at least 2 in multiple peristomes on the surface being formed in connection in the D structure thing being made up of Porous foaming body and the cavity portion of the inside through this D structure thing, and it flows in aeration tank,

By being formed with described cavity portion, specific surface area increases by 10%～20% than the described D structure thing of the state being formed without described cavity portion.

[2] microbial fixed carrier according to described [1], is characterized by,

Described Porous foaming body is polyurethane sponge system.

[3] microbial fixed carrier according to any one in described [1] and [2], is characterized by,

Described D structure thing is cube or cuboid.

[4] microbial fixed carrier according to any one in described [1]～[3], is characterized by,

Internal perisporium at the unit (cell) forming Porous structure of described foaming body is formed with annular membrane.

[5] microbial fixed carrier according to described [1], is characterized by,

Described Porous foaming body is polyurethane sponge system, and described D structure thing is cube or cuboid, and the internal perisporium at the unit forming Porous structure of described foaming body is formed with annular membrane.

[6] water purification treatment system, its adjacent outfit among the tank being cleaned the processed water of a process purified treatment dynamic from upstream side downstream effluent:

Thermopnore region, multiple thermopnore contact materials flow in processed water, carry out the purified treatment of thermopnore mode；And

Fixing bed region, fixed configurations has fixing bed contact material, is fixed the purified treatment of a mode；

In the bottom of described tank equipped with scattered gas unit,

By arranging the thermopnore contact material stoped in the flowing of thermopnore region on the border in thermopnore region and fixing bed region to the silk screen of the flowing in fixing bed region, the flowing making the processed water between thermopnore region and fixing bed region is likely to, and prevent the flowing to fixing bed region from thermopnore region of thermopnore contact material

At adjacent with described silk screen and the spaced apart regulation of the described fixing bed contact material in fixing bed region that configures and described silk screen interval, it is characterized by,

As described thermopnore contact material, use the microbial fixed carrier described in any one in described [1]～[5].

[7] water purification treatment system according to described [6], is characterized by,

As described fixing bed contact material, use the microbial fixed carrier described in any one in described [1]～[5].

Hereby it is achieved that desired purpose.

The effect of invention

According to this invention, using the teaching of the invention it is possible to provide microbial fixed carrier, it maintains the good oxygen condition of central part of microbial fixed carrier, raising mar proof and has characteristic so.

Additionally, according to this invention, water purification treatment system can be provided, it is in a water purification treatment system and by the purified treatment of fixing bed mode, thermopnore mode, wherein, use the microbial fixed carrier that improve mar proof as thermopnore, it is possible to play the purified treatment ability of excellence chronically.

Accompanying drawing explanation

Fig. 1 indicates that the figure of one of existing microbial fixed carrier example, and (a) is axonometric chart, and (b) is front view；

Fig. 2 is the figure of the microbial fixed carrier illustrating the present invention, a () indicates that the axonometric chart of first case, b () indicates that the axonometric chart of second case, c () indicates that the axonometric chart of the 3rd example, d () indicates that the axonometric chart of the 4th example, (e) indicates that the axonometric chart of the 5th example；

Fig. 3 indicates that External Force Acting is in the figure of the state of Fig. 2 (a) microbial fixed carrier illustrated and the state discharging mud, and (a) is axonometric chart, and (b) is front view；

Fig. 4 indicates that the microbial fixed carrier of the use present invention carries out the concept map of an example of Treatment of Sludge；

Fig. 5 is by concept map obtained for the partial enlargement of the unit constituting Porous structure of microbial fixed carrier, a () indicates that the internal perisporium in each unit is formed without the figure of the unit of the structure of annular membrane, (b) indicates that the internal perisporium in each unit is formed with the figure of the unit of the structure of annular membrane；

Fig. 6 is the reference photo of the partial enlargement gained of the microbial fixed carrier of the present invention by having the unit defining annular membrane, a () indicates that the reference photo of the state of the unit before the attachment of sludge treatment biological film, (b) indicates that the reference photo of the state of the unit after the attachment of sludge treatment biological film；

Fig. 7 is the reference photo of the partial enlargement gained of the microbial fixed carrier of the present invention by having the unit not forming annular membrane, a () indicates that the reference photo of the state of the unit before the attachment of sludge treatment biological film, (b) indicates that the reference photo of the state of the unit after the attachment of sludge treatment biological film；

Fig. 8 is the figure that the relation of the increase of the size to cavity portion when defining cavity portion in the microbial fixed carrier being made up of Foamex and specific surface area illustrates, a () is the situation not forming cavity portion, b (), (c) are the situations of embodiments of the present invention, d () is the situation that the size of cavity portion exceedes the scope of embodiment of the present invention, (e) indicates that the figure of the relation of the cavity portion of the existing microbe carrier being made up of Foamex being formed at cylindrical shape and the specific surface area of increase；

Fig. 9 indicates that the curve chart of the relation of the size (diameter) of cavity portion when defining cylindrical cavity portion on the microbial fixed carrier of the cubic shaped being made up of Foamex and the increase ratio of specific surface area；

Figure 10 is the figure that the embodiment to the wear test that microbial fixed carrier carries out is described；

Figure 11 indicates that the curve chart of the result to the wear test that microbial fixed carrier carries out；

Figure 12 is the profile that the schematic configuration of an embodiment to the water purification treatment system (catalytic oxidation hybrid system) fixing bed mode and thermopnore mode merged illustrates；

Figure 13 indicates that the axonometric chart of one of silk screen example；

Figure 14 is the axonometric chart that one of the fixing bed side contacts material being made up of the honeycomb duct being made up of straight tube bundle extended along vertical example is illustrated.

Detailed description of the invention

(embodiment 1)

Hereinafter, with reference to accompanying drawing, embodiments of the present invention are illustrated.Fig. 2 indicates that the figure of the microbial fixed carrier of the present invention.

The microbial fixed carrier being made up of the foaming body of Porous of the present invention of Fig. 2 diagram is the carrier supporting the aerobic microbiological in the activated sludge in aeration tank, can by manufacturing being processed in the known water-swellable polyurethane foam of this technical field etc. synthetic resin or the inorganic matter such as pottery, silica gel, sponge etc..

In the present embodiment, the foaming body 2 being made up of synthetic sponge materials such as polyurethane sponges is processed, makes microbial fixed carrier 1a, 1b (Fig. 2 (a), (b)) that the D structure thing of the cubic shaped by 10mm × 10mm × 10mm is constituted.In addition, microbial fixed carrier 1c, 1d, 1e (Fig. 2 (c), (d), (e)) of being made up of the D structure thing of rectangular shape are also illustrated.

Shape about microbial fixed carrier 1a, 1b, 1c, 1d, 1e of being made up of above-mentioned synthetic sponge material, as long as cavity portion described later can be formed therein, it is not limited to cube, cuboid, the variously-shaped D structure things such as other polygon cylinder, cylinder, spheroid can be set to.

It addition, about the material of microbial fixed carrier, except the synthetic sponge material adopted except present embodiment, also can adopt and become gelatinous resin-made sponge when swelling.

The unit number of the unit forming Porous structure of microbial fixed carrier 1a, 1b, 1c, 1d, 1e is preferably 10～50/25mm.When unit number is more than 50, just become superfine carrier, it is easy to support the reverse side of aerobic microbiological, it is easy to abrasion.It addition, when unit number is lower than 10, just become the carrier that foam is thick, it is difficult to support aerobic microbiological.Therefore, unit number is preferably 10～50/25mm.

The microbial fixed carrier of the present invention is made up of above-mentioned D structure thing, is formed with multiple peristome on the surface of its D structure thing.And, possessing cavity portion, this cavity portion links at least 2 in these peristomes, and through the inside of this D structure thing.

In Fig. 2 (a) form illustrated, the center of front 2a and back side 2b at the foaming body 2 of cubic shaped, it is provided with the peristome 4,4 of diameter 4mm, through the center of gravity G of foaming body 2 and link the cylindrical cavity portion 3a of length 10mm of peristome 4,4 and be formed at the inside of foaming body 2.

In Fig. 2 (b) form illustrated, the center of front 2a and back side 2b at the foaming body 2 of cubic shaped, it is provided with the peristome 4,4 of diameter 4mm, through the center of gravity G of foaming body 2 and link the cylindrical cavity portion 3a of length 10mm of peristome 4,4 and be formed at the inside of foaming body 2.

It addition, on foaming body 2 2c and below the center of 2d, be provided with the peristome 4,4 of diameter 4mm, through the center of gravity G of foaming body 2 and link the cylindrical cavity portion 3b of length 10mm of peristome 4,4 and be formed at the inside of foaming body 2.

In Fig. 2 (c) form illustrated, at the center of front 2a and back side 2b of the foaming body 2 of rectangular shape, it is provided with peristome 4,4, through the center of gravity G of foaming body 2 and link the cylindrical cavity portion 3c of peristome 4,4 and be formed at the inside of foaming body 2.

In Fig. 2 (d) form illustrated, at the center of front 2a and back side 2b of the foaming body 2 of rectangular shape, it is provided with peristome 4,4, through the center of gravity G of foaming body 2 and link the cylindrical cavity portion 3c of peristome 4,4 and be formed at the inside of foaming body 2.

It addition, the center of the left surface 2e and right flank 2f at foaming body 2, it is provided with peristome 4,4, is formed at the inside of foaming body 2 through the center of gravity G of foaming body 2 and the cylindrical cavity portion 3d of link peristome 4,4.

In Fig. 2 (e) form illustrated, at the center of front 2a and left surface 2e of the foaming body 2 of rectangular shape, it is provided with peristome 4,4, through the center of gravity G of foaming body 2 and link the L-shaped cavity portion 3e of peristome 4,4 and be formed at the inside of foaming body 2.

In the embodiment of diagram, the cavity portion of the peristome linking the different surfaces being formed at D structure thing all becomes the inside through D structure thing.It is not limited to such structure, for instance, it is possible to make constructed as below: the one side at D structure thing is formed with 2 peristomes, link the inside of the cavity portion traverse D structure thing of the center of gravity of these 2 peristomes and traverse D structure thing.

As described below, link at least 2 in multiple peristomes on the surface being formed at D structure thing and play, through the cavity portion 3a of inside of this D structure thing, 3b, 3c, 3d, 3e, the effect that the mud of the inside by residuing in microbial fixed carrier 1a, 1b, 1c, 1d, 1d, 1e is discharged.

With reference to Fig. 3 and for the external power of microbial fixed carrier 1a act on microbial fixed carrier state and discharge mud state illustrate.

In the microbial fixed carrier 1a flowing by the mud containing sewage etc. processing object in aeration tank, and collide with the wall in aeration tank or other microbial fixed carriers, such as, when external force 5a, 5b, 5c, 5d, 5e, 5f act on the respective direction of arrow, the mud near each outer peripheral face of microbial fixed carrier 1a (above, bottom surface, lateral circle surface) is discharged to the direction of such as arrow 6a, 6b, 6c, 6d, 6e, 6f, 6g, 6h, 6i, 6j.

And, the part for mud the direction to such as arrow 6k, 6l, 6m, 6n the inside to microbial fixed carrier 1a flow into, but by forming cavity portion 3a, the mud within flowing into is discharged to the direction of arrow 6o, 6p also through cavity portion 3a and peristome 4,4.

Accordingly, because compared with the existing microbial fixed carrier 15 of Fig. 1 diagram, the mud residuing in inside is few, and therefore the inside of microbial fixed carrier 1a has maintained oxygen condition.If having maintained oxygen condition, then the aerobic microbiological supported can be maintained at the inside of microbial fixed carrier 1a for a long time.

Additionally, owing to the summation of surface area gained of the inner peripheral surface plus cavity portion 3a is as the specific surface area of microbial fixed carrier 1a, therefore, the part of specific surface area is added, it is easy to make aerobic microbiological support in the inside of microbial fixed carrier 1a through peristome 4,4 and cavity portion 3a.

Table 1 illustrates the specific surface area of the microbial fixed carrier 1a of this embodiment and the comparison of specific surface area of the microbial fixed carrier as comparative example, this comparative example is only on this point of being formed without cavity portion 3a, different from the microbial fixed carrier 1a of this embodiment.

[table 1]

Being confirmed by table 1, by arranging the cylindrical cavity portion 3a of diameter 4mm, length 10mm in the inside of the microbial fixed carrier 1a of 10mm × 10mm × 10mm, specific surface area adds about 17% than the microbial fixed carrier being formed without cavity portion 3a.

Therefore, the part of the specific surface area added, can easily make aerobic microbiological support the air that simultaneously can make to be produced by mud and aeration in the inside of microbial fixed carrier through peristome and cavity portion and absorb the inside at microbial fixed carrier also through peristome and cavity portion, therefore, it is possible to promote the propagation of the aerobic microbiological supported.

Additionally, in figure 3, in the microbial fixed carrier 1a flowing by the mud containing sewage etc. processing object in aeration tank, and collide with the wall in aeration tank or other microbial fixed carriers, such as, when external force 5a, 5b, 5c, 5d, 5e, 5f act on the respective direction of arrow, it is possible to relaxed these external force by cavity portion 3a.

Therefore, though life-time service microbial fixed carrier 1a, it is also possible to reducing the consumption that causes of abrasion, the replacement frequency of microbial fixed carrier 1a also reduces, it is possible to make the Treatment of Sludge function-stable of aerobic microbiological.

From these viewpoints, with regard to possess link be formed at D structure thing surface multiple peristomes at least 2 and through this D structure thing inside cavity portion present embodiment microbial fixed carrier above-mentioned cavity portion size for, it is preferable that make specific surface area than be formed without above-mentioned cavity portion state above-mentioned D structure thing increase by 10%～20% size.

When defining such as when increasing ratio less than the cavity portion of 10% that size of specific surface area, it is possible to reduce and make above-mentioned to flow into internal mud and pass cavity portion and peristome and the ability discharged.

It addition, when defining such as when increasing ratio more than the cavity portion of 20% that size of specific surface area, mar proof reduces, it is possible to weak to life-time service.

In this embodiment, the opening footpath of peristome 4 is set to 4mm, but define cavity portion by above-mentioned, compared with the above-mentioned D structure thing of the state not forming above-mentioned cavity portion, if specific surface area increases by the scope of 10%～20%, then the opening footpath of peristome 4 can also be lower than 4mm or more than 4mm.Considering the shape of microbial fixed carrier, size etc., by defining cavity portion, compared with the above-mentioned D structure thing of the state not forming above-mentioned cavity portion, increase in the scope of 10%～20% in specific surface area, the opening footpath of peristome 4 can carry out many variations.

In this embodiment, cavity portion 3a～3e passes the center of gravity G of D structure thing.But, it is not limited to this, it is possible to make at least 2 in the multiple peristomes linking the surface being formed at D structure thing and the cavity portion of inside through this D structure thing is not passed through the structure of center of gravity G of this D structure thing.

But, as mentioned above, when microbial fixed carrier 1a being applied with external force 5a～5f etc., discharge mud along arrow 6o, 6p direction also through cavity portion 3a and peristome 4,4, thus, residuing on the mud of inside of microbial fixed carrier 1a reducing further, cavity portion 3a～3e is preferably the structure/form of the center of gravity G through D structure thing.When the microbial fixed carrier of the present embodiment that the D structure thing manufactured by the synthetic resin such as synthetic sponge material, water-swellable polyurethane foam or the inorganic matter such as pottery, silica gel, the sponges etc. such as polyurethane sponge are processed is constituted, its center of gravity G is mostly consistent with its center.Therefore, by linking in multiple peristomes on the surface being formed at D structure thing at least 2 and through the cavity portion of inside of this D structure thing through the center of gravity G of this D structure thing, when microbial fixed carrier is applied with external force 5a～5f etc., mud can be made to discharge efficiently through cavity portion and peristome from the inside of microbial fixed carrier, it is possible to reduce the mud of the inside residuing in microbial fixed carrier further.

Fig. 4 indicates that use microbial fixed carrier 1a carries out the concept map of an example of Treatment of Sludge.

In the diagram, namely the process object that bottom is provided with in the aeration tank 7 of scattered device of air 8 contains the mud of sewage etc. and circulates along the direction of arrow 10a, 10b, 10c, 10d.It addition, supply numerous air-bubble 9 from scattered device of air 8 to aeration tank 7.

Absorb mud and lysed air and inside becomes the microbial fixed carrier 1a in biomembranous room from the state rendered in aeration tank 7, along arrow 10a, decline in aeration tank 7, the thing followed is, the hydraulic pressure pressurizeed to all directions of arrow 11a increases, and becomes the pressurized state (pressurized state B) of the degree producing bubble 9a from the surface of microbial fixed carrier 1a.

From pressurized state A to B, microbial fixed carrier 1a is applied with hydraulic pressure to all directions of arrow 11a, but is as noted previously, as and has been internally formed cavity portion 3a at microbial fixed carrier 1a, therefore, it is possible to relaxed these hydraulic pressure by cavity portion 3a.

It addition, be easily drained, to all directions of the arrow 12a of arrow 6o, 6p of comprising Fig. 2 diagram, the mud being absorbed in inside through cavity portion 3a and peristome 4,4.

Therefore, compared with the microbial fixed carrier 15 of the cavity portion not forming Fig. 1 diagram, the mud of the inside residuing in microbial fixed carrier 1a tails off, and the inside of microbial fixed carrier 1a has maintained oxygen condition.If having maintained oxygen condition, then the aerobic microbiological supported can be maintained at the inside of microbial fixed carrier 1a for a long time.

The microbial fixed carrier 1a having discharged mud of pressurized state B rises in aeration tank 7 along arrow 10b, 10c, 10d, it follows that reduce (decompression state A, B) to the hydraulic pressure of all directions of arrow 11b

From decompression state A to B, microbial fixed carrier 1a reduces to the hydraulic pressure of all directions of arrow 11b, but now, mud and lysed air are readily absorbed by inside through cavity portion 3a and peristome 4,4 to all directions of the arrow 12b of arrow 5e, 5f of illustrating containing Fig. 3.

Additionally, owing to passing through to define cavity portion 3a, the specific surface area of microbial fixed carrier 1a increases, the part of the specific surface area therefore added, it is possible to make more aerobic microbiological support in the inside of microbial fixed carrier 1a through peristome 4,4 and cavity portion 3a.

Accordingly, because in the inside of microbial fixed carrier 1a, the aerobic microbiological supported is with good oxygen condition and above-mentioned absorbed mud and lysed air contact, therefore, it is possible to promote the propagation of aerobic microbiological.

Fig. 5 (a) indicates that the figure of a kind of form of the wall structure of the unit forming Porous structure of the microbial fixed carrier 1a of this embodiment.In Fig. 5 (a) structure illustrated, each unit 13 is hexagonal shape.Inner circumferential wall in each unit 13 of the wall structure of this hexagonal shape is formed with sludge treatment biological film, supports aerobic microbiological.

The shape of each unit 13 of wall structure is not limited to Fig. 5 (a) hexagonal shape illustrated, and can be made into the wall structure being made up of various shapes such as polygonal shape, round-shaped, elliptical shape such as triangle, tetragons (square, rectangle, rhombus).

It addition, may be made as constructed as below: at the internal perisporium of the unit forming the wall structure being made up of above-mentioned various shapes, i.e. the internal perisporium of the unit forming the Porous structure of foaming body is formed with annular membrane.

Fig. 5 (b) indicates that the internal perisporium 13a of each unit of the formation Porous structure at microbial fixed carrier of the present invention is formed with the figure of the structure of annular membrane 14.The embodiment that Fig. 5 (b) illustrates is the inner circumferential wall 13a of each unit 13 of the wall structure in the hexagonal shape shown in Fig. 5 (a) embodiment being formed with annular membrane 14.Annular membrane 14 may utilize the overlap produced in the manufacture process of foaming body and is formed at internal perisporium 13a.Formed annular membrane 14 in order that make the aerobic microbiological to support increase.

Fig. 6 is that the internal perisporium of unit forming Porous structure of the above-mentioned foaming body by the microbial fixed carrier of the present invention of the form illustrated at Fig. 2 (a) is formed with the part of the state of annular membrane and amplifies and the reference photo that obtains, the microbial fixed carrier of the present invention of the form that this Fig. 2 (a) illustrates, possess 2 peristomes linking the surface being formed at the D structure thing (12mm × 12mm × 12mm) being made up of Porous foaming body and the cavity portion (diameter 4mm, length 12mm) of the inside through this D structure thing.Unit number is set to 18/25mm.

Fig. 6 (a) indicates that the photo of state of the unit before the attachment of sludge treatment biological film, forms the annular membrane thin just like as flippers at the internal perisporium of each unit forming wall structure.

Fig. 6 (b) indicates that the photo of the state after being attached to sludge treatment biological film on the annular membrane thin as flippers of Fig. 6 (a) internal perisporium being formed at each unit illustrated.What represent is while maintaining air-vent/permeable hole, in the situation generally forming sludge treatment biological film of the internal perisporium (thin annular membrane) of each unit.

The part that Fig. 7 is the internal perisporium of the unit forming Porous structure of the above-mentioned foaming body of the microbial fixed carrier of the present invention of the form illustrated by Fig. 2 (a) is amplified and the photo that obtains, the microbial fixed carrier of the present invention of the form that this Fig. 2 (a) illustrates, possesses 2 peristomes linking the surface being formed at the D structure thing (10mm × 10mm × 10mm) being made up of Porous foaming body and the cavity portion (diameter 4mm, length 10mm) of the inside through this D structure thing.Unit number is set to 18/25mm.

Fig. 7 (b) indicates that the photo of the state after the internal perisporium of each unit of Fig. 7 (a) embodiment illustrated is attached to sludge treatment biological film.Compared with the form that Fig. 7 (b) illustrates, expression is the situation being formed with sludge treatment biological film in the part of the internal perisporium of unit.

Use same aeration tank, same process object sewage, and use the microbial fixed carrier of the present invention with the structure that Fig. 6, Fig. 7 illustrate, process.According to the quantity of ratio of the 30% of the volume accounting for aeration tank, by have the structure of Fig. 6 diagram microbial fixed carrier of the present invention and, the microbial fixed carrier of the present invention of the structure with Fig. 7 diagram together renders in aeration tank.In respective situation, measure MLSS concentration, mensuration as a result, Fig. 6 diagram form in, for about 4,900mg/L, Fig. 7 diagram form in, for about 3,000mg/L.

So can confirm that, in each unit of microbial fixed carrier, form annular membrane as above by such as Fig. 5 (b) Suo Shi, it is possible to support more aerobic microbiological.

(relating to the research of the increase of specific surface area)

In the microbial fixed carrier of the present invention, compared with the above-mentioned D structure thing of the state not forming above-mentioned cavity portion, link is formed at least 2 in multiple peristomes on the surface of D structure thing and the size through the cavity portion of the inside of this D structure thing becomes specific surface area and adds the size of 10%～20%.

This is the numerical value that the ability that the mud considering the inside making inflow microbial fixed carrier is discharged through cavity portion and peristome draws.

Link is formed at least 2 in multiple peristomes on the surface of D structure thing and the cavity portion through the inside of this D structure thing can play the effect that the mud of the inside by residuing in microbial fixed carrier is discharged.That is, the mud flowed into the inside of microbial fixed carrier is discharged through above-mentioned cavity portion and above-mentioned peristome.Thus, make the amount residuing in the mud of inside reduce, become and maintaining the preferred state of aerobic state aspect within microbial fixed carrier.And, the aerobic microbiological supported in the inside of microbial fixed carrier can be maintained at inside microbial fixed carrier for a long time.

And then, from the view point of the mar proof of the microbial fixed carrier of the present invention, also specify numerical range above-mentioned, so-called specific surface area increase by 10%～20%.

As patent documentation 4～7, conventional motion is the microbe carrier being made up of Foamex, and this microbe carrier, in order to make microorganism bond area increase, is formed as hollow form by it.

But, in the existing motion that microbe carrier is formed as hollow form, naturally it is envisioned that attempt, maintaining in the scope of shape of this microbe carrier, adding bigger serface as much as possible.

Namely, in the scope of the shape of maintenance microbe carrier, when this microbe carrier is formed as hollow form and realizes the increase of specific surface area, do not expect that the mentioned microorganism carrier with the state not forming above-mentioned cavity portion compared, and specific made specific surface area increase within the limits prescribed.

It is explained with reference to accompanying drawing 8.

Such as, in the former state of shape of the microbe carrier of the cubic shaped maintaining 10mm × 10mm × 10mm, when will form cylindrical cavity portion and add bigger serface as much as possible, the big cavity portion as shown in Fig. 8 (d) is set naturally.

Fig. 9 illustrates when maintaining the former state of shape of the microbe carrier of cubic shaped of 10mm × 10mm × 10mm and be formed with cylindrical cavity portion, and how specific surface area is increased by the size of the diameter of this cylinder.

Fig. 8 (e) is the schematic diagram of the microbe carrier of Fig. 1 record of patent documentation 5 (JP 2001-197885 publication).As shown in Fig. 8 (e), specific surface area increases by 32%.This is based on the record of 0050 paragraph～0052 paragraph of patent documentation 5 and the numerical value of the increase of specific surface area calculated as follows.

(2π×6²+2π×6×12-2π×5²+2π×5×12)÷(2π×6²+ 2 π × 6 × 12) × 100=132.4%

On the other hand, the scope of the size of the cavity portion that the imparting specific surface area of the present application increases less than the cavity portion that the those skilled in the art paying close attention to specific surface area increase expect (specific surface area increases by 10%～20%) (Fig. 8 (b), (c)).

This is because the present application considers the increase scope of following factor and regulation specific surface area as mentioned above: make the ability that the mud of the inside of inflow microbial fixed carrier is discharged through cavity portion and peristome；Make the sludge quantity residuing in inside thus caused reduce, maintain the good oxygen condition within microbial fixed carrier, the aerobic microbiological supported in internal can be made to be maintained at for a long time inside microbial fixed carrier；And mar proof, life-time service.

(development test about mar proof)

As follows the microbial fixed carrier of the structure described in embodiment 1 is carried out wear test.Carry out be use microbial fixed carrier as thermopnore (making its situation etc. flowed in aeration tank) time the research about mar proof.

The enforcement main points of wear test

As shown in the schematic configuration of Figure 10, carry out wear test.

At the inner peripheral surface of tank, towards the state of the private side of tank, resistance to water sand paper is installed with abradant surface, in tank, adds water and test body, after making the water in tank rotate the stipulated time, the state of wear of development test body.

The equipment that wear test uses etc. are as described below.

Wear test testing machine MIYAMOTOCORPORATIONJAR-TESTER

Tank capacity: add tap water in 1 liter of cylindric glass beaker

Lost material: resistance to water sand paper 100#

Resistance to water sand paper 100# is installed on towards the state of the private side of glass beaker with abradant surface inner circumferential wall and the bottom surface of 1 liter of glass beaker of cylindrical shape.

Rotating speed: 200rpm

The filling rate of test body: 20%

Test body 1

The microbial fixed carrier of the structure described in embodiment 1

The cubic shaped of size: 10mm × 10mm × 10mm

The size of cavity portion: the cylindrical cavity of diameter 4mm

As shown in Fig. 7 (a), the internal perisporium at the unit forming Porous structure of foaming body defines the structure of annular membrane

Test body 2 (comparative example 1)

Utilize the microbial fixed carrier being made up of existing Porous foaming body (resinous sponge) that Fig. 1 illustrates

The cubic shaped of size: 10mm × 10mm × 10mm

Cavity portion: nothing

The annular membrane of the internal perisporium of the unit forming Porous structure of foaming body: without test body 3 (comparative example 2)

The microbial fixed carrier of the structure described in embodiment 1

The cubic shaped of size: 10mm × 10mm × 10mm

The size of cavity portion: the cylindrical cavity of diameter 7mm

As shown in Fig. 7 (a), the internal perisporium at the unit forming Porous structure of foaming body defines the structure of annular membrane

About each test body, determine the dry weight before wear test is implemented and after wear test enforcement respectively.

This result is represented in the curve chart of Figure 11.Test body 2,3 (comparative example 1,2) latter 240 hours in enforcement, residual rate is lower than 80%, and abrasion is in progress, but test body 1 is 95.6% at residual rate, and abrasion is not also in progress.

Table 2 below is based on this wear test result, the table of residual rate when estimating life-time service test body 1～3 as thermopnore.

[table 2]

Can estimate when specific surface area increases by test body 1 of 17%, it is possible to life-time service.

On the other hand, even the microbial fixed carrier of the structure that presumption is described in embodiment 1, also when specific surface area increases test body 3 of 25% (Fig. 8 (d)), when life-time service, abrasion can be in progress.

Development test by the research of the above-mentioned increase relating to specific surface area, about mar proof can confirm that, the above-mentioned D structure thing making specific surface area than forming the state of above-mentioned cavity portion by the size by least 2 in the multiple peristomes linking the surface being formed at D structure thing and through the cavity portion of the inside of this D structure thing increases by the size of 10%～20%, it is able to maintain that the good oxygen condition of the central part of microbial fixed carrier, improves mar proof.And, can confirm that when departing from this scope, effect/effect as above cannot be played.

As described in patent documentation 4～7, provide a kind of microbe carrier being made up of Foamex, when this microbe carrier being formed as hollow form for making microorganism bond area increase, naturally it is envisioned that attempt, maintaining in the scope of shape of this microbe carrier, adding bigger serface as much as possible.Such as, as it has been described above, in Fig. 1 of patent documentation 5 microbe carrier recorded, specific surface area adds 32%.

On the other hand, in embodiments of the present invention, if to strengthen those skilled in the art of the specific surface area of water treatment carrier as much as possible, the expression specific surface area then passing through specially to arrange the scope also less than the scope of the size of the cavity portion to attempt increases the cavity of (10%～20% increases), it becomes possible to the problem both sides that the aerobic of the mar proof raising and central part that solve so-called flowable carrier best maintains.It addition, when greatly departing from this scope and make specific surface area increase increase, above-mentioned problem cannot be solved best.

(embodiment 2)

Figure 12 is the Compound Water cleaning treatment system of the fixed bed process fixing bed mode and thermopnore mode merged of the water purification treatment system to this invention and fluidized bed method, i.e. the figure that the schematic configuration of one of catalytic oxidation hybrid system example illustrates.

It is being cleaned the processed water of process from upstream side (Figure 12, left side) downstream side (in Figure 12, right side) in the tank 1 of a purified treatment that flows, adjacent equipped with thermopnore region 22 with fixing bed region 23, it is configured with silk screen 24 on the border in thermopnore region 22 and fixing bed region 23.

The flowing of the processed water that silk screen 24 is capable of between thermopnore region 22 and fixing bed region 23, on the other hand, stops the thermopnore contact material 29 flowed thermopnore region 22 in the flowing in fixing bed region 23.

In the bottom of tank 21, dissipate gas unit 28a～28f equipped with by multiple units of unit control successively from upstream side downstream side.Hereinafter, the generalized representation that constituent parts often dissipates gas unit 28a～28f or the scattered gas unit of unit is " dissipating gas unit 28 ".

Constituent parts dissipates the unit control of gas unit 28a～28f can manually or automatically carry out.

Throwing in thermopnore region 22 and have multiple thermopnore contact material 29, this is that thermopnore contact material 29 passes through by scattered gas unit 28 aeration being provided to thermopnore region 22, and flows in processed water, carries out the purified treatment of thermopnore mode.

At this, the unit configured successively from upstream side in thermopnore region 22 by unit control dissipates gas unit 28a, unit dissipates gas unit 28b, and the control valve of the position shown in A in Figure 12 is set to out, the control valve of the position shown in B in Figure 12 is made and closes, only in the position dissipating gas unit 28a equipped with unit, the upwelling shown in arrow upwards in Figure 12 can be produced, on the other hand, in the position dissipating gas unit 28b equipped with unit, produce the sinking shown in arrow downward in Figure 12.As mentioned above, such constituent parts dissipates the unit control of gas unit 28a～28f can manually or automatically carry out, but controlling as scattered in unit gas unit 28a, 28b in the way of stopping when the opposing party when a side carries out dissipating pneumatic work, adjacent constituent parts dissipates gas unit, the complexity of automatic control mode diminishes than manual mode.

So, gas unit 28a, 28b is dissipated by unit control constituent parts, and when the side that adjacent constituent parts dissipates gas unit 28a, 28b carries out dissipating pneumatic work, in the way of the opposing party's stopping, controlling the scattered gas unit 28a～28f being equipped with successively in the bottom of tank 21 from upstream side downstream side, it is possible to make thermopnore contact material 29 flow efficiently in the processed water in thermopnore region 22.

So, processed water or deliquescent organic fouling product, float (SuspendedSolids) are (below, in this specification, accompanying drawing, be sometimes denoted as " SS "), mixed liquor float (following, in this specification/accompanying drawing, be sometimes denoted as " MLSS ") etc. can more efficiently with the biofilm contact on the surface being formed at thermopnore contact material 29, and improve disposal ability.

In fixing bed region 23, it is fixed the purified treatment of a mode.

As shown in figure 14, the fixed configurations fixing bed contact material 25 in fixing bed region 23 is such as made up of honeycomb duct, and this honeycomb duct is made up of the straight tube bundle extended along vertical.

By by scattered gas unit 28 aeration being provided to fixing bed region 23, producing the flowing of the processed water making each cylindrical portion 25a, the 25a (Figure 14) of honeycomb duct increase.

In fixing bed region 23, the unit configured successively from upstream side downstream side also by unit control dissipates gas unit 28c～28f, and the control valve of the position shown in C in Figure 12 is set to out, the control valve of the position shown in D in Figure 12 is made and closes, can at each cylindrical portion 25a of the honeycomb duct of the position dissipating gas unit 28c equipped with unit, the inside of 25a, produce the upwelling shown in arrow upwards in Fig. 1, the oxygen that supply Institute of Micro-biology needs, SS or Organic substance are entered by biomembrane group efficiently, on the other hand, each cylindrical portion 25a at the honeycomb duct of the position dissipating gas unit 28d equipped with unit, the inside of 25a, produce the sinking shown in arrow downward in Fig. 1, it is suitable for peeling off excess sludge, purify efficiently.

So, in the water purification treatment system of the present invention, any one region in thermopnore region 22, fixing bed region 23, all by being carried out whole aeration by the scattered gas unit 28a～28b of multiple units of the bottom being provided to tank 21 from upstream side to downstream, or unit control constituent parts dissipates gas unit 28a～28f, carry out splitting whole and whole of aeration splits aeration.And, in processed water, thus produce eddy flow etc., make treatment effeciency improve.

As thermopnore contact material 29, the microbial fixed carrier described in embodiment 1 can be used.That is, the microbial fixed carrier of flowing in aeration tank, this microbial fixed carrier is made up of Porous foaming body, possesses at least 2 in the multiple peristomes linking the surface being formed at D structure thing and the cavity portion of the inside through this D structure thing.And, this microbial fixed carrier is by forming above-mentioned cavity portion, and specific surface area increases by the carrier of 10%～20% than the above-mentioned D structure thing of the state not forming above-mentioned cavity portion.

Such thermopnore contact material 29 is set to multiple, for instance, 280000/m³Ratio, filling rate 20～40%, render to thermopnore region 22.

Figure 14 is the axonometric chart eliminating a part that one of structure when being constituted fixing bed contact material 25 by the honeycomb duct being made up of straight tube bundle extended along vertical example is illustrated.Honeycomb duct is such as set to polrvinyl chloride system, when Figure 14 illustrates, for instance can be set to width: 500mm, length: 1000mm, highly: 1000mm, specific surface area: 133m²/m³(Unit 30), weight: 27kg/m³(230 microns).

Such Figure 14 honeycomb duct illustrated is provided to fixing bed region 23 so that such as filling rate 80% is fixing.

Additionally, in the form of Figure 14 diagram, the example being made up of fixing bed contact material 25 honeycomb duct being made up of straight tube bundle extended along vertical is illustrated, but fixing bed contact material 25 is not limited to the form of Figure 14 diagram.As long as produce upwelling by being provided to the aeration of the scattered gas unit 28 bottom tank 21 via the fixing bed contact material 25 of the upside being provided to scattered gas unit 28, and the form becoming the rectified action than the flowing evenly of the flowing in the processed water produced by dissipating the aeration of gas unit 28 in an upward direction can be played in above-mentioned thermopnore region 22, then can be set to corrugated plate shape or gravel, ball shape etc. in the known various shapes/structure/form of this technical field.

Such as, it is possible to use the microbial fixed carrier of the D structure thing being made up of Porous foaming body described in many embodiments 1, constitute the wall of straight tube, then many these straight tubes are bundled, make fixing bed contact material 25.

Figure 13 is the figure that silk screen 24 is described.As it has been described above, silk screen 24 can realize the flowing of the processed water between thermopnore region 22 and fixing bed region 23, on the other hand, the thermopnore contact material 29 in thermopnore region 22 flowing can be stoped to the flowing in fixing bed region 23.

When utilizing the purifying water process of biological treatment, the surface area of contact material is more big, and more microorganism more can be made to be attached to the surface of contact material, and disposal ability more becomes big.Therefore, in the biological treatment of thermopnore mode, by contact material is made ducted body, or making the structure that voidage is big, can make contact material both further miniaturizations, enlarged surface amasss again.

Additionally, when the biological treatment of thermopnore mode, the silk screen preventing thermopnore contact material 29 from flowing out is set, so that the thermopnore contact material 29 in thermopnore region 22 flowing does not flow out from thermopnore region 22, but for the purpose expanding specific surface area, and when achieving the microminiaturization of thermopnore contact material 29, the mesh width of this silk screen is also required to the microminiaturization corresponding to thermopnore contact material 29 and miniaturization.In this case, when reducing the mesh width of silk screen, will when the draining etc. that the high draining of the concentration of SS flowed into or sticking draining, load are big, also adhere at silk screen self, live biomembrane, produce blocking, there is obstruction so-called from the problem of the round and smooth flowing of the processed water of upstream side downstream side.

The present invention be by among a tank 21 in the way of clipping silk screen 24 adjacent outfit thermopnore region 22 and fixing bed region 23, solve this problem, this silk screen 24 can realize the flowing of the processed water between thermopnore region 22 and fixing bed region 23, on the other hand, the thermopnore contact material 29 in thermopnore region 22 flowing can be stoped to the flowing in fixing bed region 23.

At this, flowing about the processed water that can realize between thermopnore region 22 and fixing bed region 23, the thermopnore contact material 29 in thermopnore region 22 flowing can be stoped on the other hand to the silk screen of the flowing in fixing bed region 23, as mentioned above, preferably make the further miniaturization of contact material, enlarged surface amasss, on the other hand, it is preferable that make the mesh width considering to avoid the drawback self produced of so-called silk screen blocking.

Inventors etc. also consider following effect in the present invention and study, confirm in clean water treatment effect, the mesh width of silk screen 24 is preferably made the size of about the 1/2 of the overall dimensions of thermopnore contact material 29 by clean water treatment efficiency aspect, the effect of this consideration is as described later, be by force by dissipating the aeration of gas unit 28 to produce the processed water via silk screen 24 from thermopnore region 22 to fixing bed region 23, or realize from fixing bed region 23 to the flowing in thermopnore region 22 etc., additionally, by making thermopnore contact material 29 miniaturization and enlarged surface amasss, or the forced flow produced by the aeration of the scattered gas unit 28 in thermopnore region 22 (whole aeration or whole segmentation aeration, eddy flow etc.) and realize.

Figure 13 be the silk screen of the mesh width 5mm in the gap of the spaced apart 5mm of adjacent clava 24a, the 24a to the clava 24a adopted at the diameter 7mm extended parallel to each other along the vertical direction as the thermopnore contact material 29 using the microbial fixed carrier of size described in embodiment 1 to constitute time the figure that illustrates of the situation of one of silk screen 24 example.

Additionally, silk screen 24 can realize the flowing of the processed water between thermopnore region 22 and fixing bed region 23, on the other hand, the thermopnore contact material 29 in thermopnore region 22 flowing can be stoped to the flowing in fixing bed region 23.Therefore, it is not limited to the form of Figure 13 diagram, as long as have the overall dimensions of thermopnore contact material 29 about 1/2 mesh width, be not limited to the form being made up of as shown in fig. 13 that vertically extending multiple clavas, it is also possible to for the silk screen of sieve-like.

In the present invention, even if in thermopnore region 22, produce whole aeration or eddy flow also by the scattered gas of scattered gas unit 28, processed water or MLSS can efficiently with the biofilm contact on the surface being formed at thermopnore contact material 29, improve disposal ability.

Additionally, dissipate in gas unit 28 being provided to the unit of bottom of tank 21 successively from upstream side downstream side, gas unit 28a～28f is dissipated by controlling adjacent constituent parts in the way of the opposing party's stopping during carrying out dissipating pneumatic work a side, it is capable of such as, as shown in figure 12, the scattered gas unit 8b of unit being configured at the downside of silk screen 24 is stopped, and unit scattered gas unit 28a, 28c of being adjacent to be configured at upstream side and downstream with the scattered gas unit 28b of this unit carry out dissipating pneumatic work.Or, in contrast, it is possible to making the unit being configured at the downside of silk screen 4 dissipate gas unit 28b and carry out dissipating pneumatic work, unit dissipates gas unit 28a, 28c and stops.Thereby, it is possible to force produce via silk screen 24 processed water from thermopnore region 22 to fixing bed region 23 or from fixing bed region 23 to the flowing in thermopnore region 22, it is possible to more efficiently prevent the blocking of silk screen 24.

In addition, the size of tank 21, constituent parts dissipate gas unit size relation in, although not shown, but be not limited to be equipped with unit in the downside of silk screen 24 and dissipate gas unit, it is also considered that become and dissipate the form of gas unit being equipped with unit than the upstream side, downside of silk screen 24 and downstream.In this case, also in be provided to the scattered gas unit 28 of the unit of bottom of tank 21 successively from upstream side downstream side, gas unit 28a～28f is dissipated by controlling adjacent constituent parts in the way of the opposing party's stopping during carrying out dissipating pneumatic work a side, force produce via silk screen 24 processed water from thermopnore region 22 to fixing bed region 23 or from fixing bed region 23 to the flowing in thermopnore region 22, more efficiently prevent the blocking of silk screen 24.

And, in the water purification treatment system of the present invention, use the thermopnore contact material 29 that specific surface area is bigger than the fixing bed contact material 25 being provided to fixing bed region 23, in thermopnore region 22, the processed water that SS concentration is big is processed by within a short period of time, about the processed water that deliquescent Organic dirt concentration is little, in fixing bed region 23, by fixing bed contact material 25 (in the example in the figures, fixing bed contact material 25 by being made up of the honeycomb duct being made up of straight tube bundle extended along vertical), process.

In addition, as mentioned above, in fixing bed region 23, the fixing bed contact material 25 that can play the shapes/configurations/form of rectified action is provided in the upside of scattered gas unit 28, and this rectified action is to become the effect than the flowing evenly of the flowing in the processed water produced by dissipating the aeration of gas unit 28 in above-mentioned thermopnore region 22 in an upward direction.Such as, in the illustrated embodiment, by the fixing bed contact material 25 being made up of the honeycomb duct being made up of straight tube bundle extended along vertical, rectified action is produced.

Therefore, in order to be both effectively taking place processed water via silk screen 24 from thermopnore region 22 to fixing bed region 23 or from fixing bed region 23 to the flowing in thermopnore region 22, improve again the rectification effect in fixing bed region 23 simultaneously, in the water purification treatment system of the present invention, at adjacent with silk screen 24 and the spaced apart regulation of the fixing bed contact material 25 in fixing bed region 23 that configures and silk screen 24 interval.

In Figure 12 embodiment illustrated, owing to being formed with fixing bed region 23 in the downstream of silk screen 24, therefore, as shown in symbol 27, the interval of the spaced apart regulation of the honeycomb duct 26 closest to silk screen 24 in the honeycomb duct of bed contact material 25 and silk screen 24 is fixed in the composition in fixing bed region 23.

So, in fig. 12, adjacent with silk screen 24 shown in symbol 27 and the big I at interval between fixing bed contact material 25 and the silk screen 24 in fixing bed region 23 that configure specify according to following viewpoint, this viewpoint is, both be effectively taking place processed water via silk screen 24 from thermopnore region 22 to fixing bed region 23 or from fixing bed region 23 to the flowing in thermopnore region 22, improve again the rectification effect in fixing bed region 23 simultaneously.Such as, more than 30cm can be at least set to.

Then, to the water purification treatment system using Figure 12 present invention illustrated, namely, the example when system that fixing bed mode and thermopnore mode merge is carried out purifying water process illustrates, and this system is the catalytic oxidation hybrid system of the Compound Water cleaning treatment system of fixed bed process and fluidized bed method.

As shown in arrow 30, make the processed water (former water) of process object flow into the thermopnore region 22 of tank 21 of purified treatment.

The thermopnore contact material 29 being made up of microbial fixed carrier that embodiment 1 illustrates is thrown in thermopnore region 22, in the way of the opposing party's stopping when a side carries out dissipating pneumatic work, unit control is configured at the scattered gas unit 28a of unit of the bottom of tank 21 successively from upstream side downstream side, unit dissipates gas unit 28b, such as, only in the position dissipating gas unit 28a equipped with unit, produce the upwelling shown in arrow upwards in Figure 12, on the other hand, in the position dissipating gas unit 28b equipped with unit, produce the sinking shown in arrow downward in Figure 12.Thus, thermopnore contact material 29 effectively flows in processed water, processed water or deliquescent Organic fouling product, SS, MLSS more effectively with the biofilm contact on the surface being formed at thermopnore contact material 29, and entered in biomembrane by group.

As shown in arrow 30, the processed water flowing into tank 21 flows from upstream side (Figure 12, left side) downstream side (in Figure 12, right side) in tank 21, acceptance process, then as shown in arrow 31a, 31b, discharges from tank 21.

At this moment, the mesh width of about the 1/2 of the overall dimensions that silk screen 24 is thermopnore contact material 29 being provided between thermopnore region 22 and fixing bed region 23, owing to becoming relatively larger mesh width, even if therefore when the SS concentration of the processed water flowed into is high, or when the processed water etc. that sticking processed water, load are big, adhere at silk screen 24 self, live biomembrane and produce the probability of blocking also little.

And, as mentioned above, by often adjacent unit dissipate gas unit 28a～28f all when a side carries out dissipating pneumatic work in the way of the opposing party's stopping the unit of the bottom that unit control is configured at tank 21 successively from upstream side downstream side dissipate gas unit 28a～28f, the flowing of compulsory processed water is produced between thermopnore region 22 and fixing bed region 23, even if when the SS concentration of the processed water flowed into is high, or at sticking processed water, when the big processed water etc. of load, it also is able to be more reliably prevented from adhering at silk screen 24 self, live biomembrane and produce blocking.

The processed water being subject to purified treatment in thermopnore region 22 flows into fixing bed region 23 through silk screen 24, at this, as mentioned above, equipped with carrying out dissipating each cylindrical portion 25a of the honeycomb duct of the position of the scattered gas unit 28 of pneumatic work, the inside of 25a, produce the upwelling shown in arrow upwards in Figure 12, the oxygen that supply microorganism is necessary, SS or Organic substance are entered by biomembrane group efficiently, on the other hand, equipped with stopping dissipating each cylindrical portion 25a of the honeycomb duct of the position of the scattered gas unit 28 of pneumatic work, the inside of 25a, produce the sinking shown in arrow downward in Figure 12, it is suitable for peeling off excess sludge.

So, after fixing bed region 23 has carried out process, as shown in arrow 31a, 31b, discharge from tank 21.

The water purification treatment system of the present invention according to Figure 12 embodiment illustrated, in short time the processed water that the concentration of deliquescent organic dirt is high is processed in thermopnore region 22 at first, then in fixing bed region 23, the processed water of the concentration step-down of deliquescent organic dirt is processed, effectively combine the process of thermopnore mode and the process of fixing bed mode, it is possible to efficiently and effectively purify.It addition, it is possible to be difficult to be subject to hyphomycetic impact.

Additionally, may correspond to become the character of the processed water of purified treatment object and be changed to: the upstream side at tank 21 configures fixing bed region 23 and clips silk screen 24 and configuring the form in thermopnore region 22 downstream, be configured to the form in the fixing 23-silk screen 24-thermopnore region, bed region 22 of thermopnore region 22-silk screen 24-from upstream toward downstream successively, be configured to all forms such as form in the fixing bed region 23 of fixing bed region 23-silk screen 24-thermopnore region 22-silk screen 24-.

As mentioned above, water purification treatment system according to the present invention, namely, the system that fixing bed mode and thermopnore mode are merged, the catalytic oxidation hybrid system of the present invention of the Compound Water cleaning treatment system of fixed bed process and fluidized bed method, by an existing tank 21 of the purified treatment dynamic from upstream side downstream effluent at the processed water being cleaned process, it is disposed adjacent thermopnore region 22 and fixing bed region 23 to the silk screen 24 of the flowing in fixing bed region 23 via stoping the thermopnore contact material 29 in thermopnore region 22 flowing, can effectively play the fixing bed mode of biological treatment, the respective favourable face of thermopnore mode.And owing to an existing tank 21 of existing purified treatment can be used to carry out this process, therefore becoming present aspect highly advantageous.

Additionally, by using the thermopnore contact material 29 being made up of microbial fixed carrier described in embodiment 1, the good oxygen condition within thermopnore contact material 29 can be maintained well, the aerobic microbiological supported is made to be maintained at thermopnore contact material 29 for a long time internal, improve purified treatment ability, on the other hand, it is possible to the thermopnore of life-time service excellent in wear resistance contact material 29.

Above, with reference to accompanying drawing, the preferred embodiment of the present invention, embodiment are illustrated, but the present invention is not limited to the embodiment, the embodiment that relate to, in the technical scope grasped from the record of claims, variable more all forms.

Symbol description

1a, 1b, 1c, 1d, 1e microbial fixed carrier

2 foaming bodies

The front of 2a foaming body

The back side of 2b foaming body

Above 2c foaming body

Below 2d foaming body

The left surface of 2e foaming body

The right flank of 2f foaming body

3a, 3b, 3c, 3d, 3e cavity portion

4 peristomes

The action direction of 5a 5f external force

The outflow direction of 6a 6o mud

7 aeration tanks

8 dissipate device of air

9 bubbles

The bubble that 9a produces from microbial fixed carrier

The flowing of the mud in 10a, 10d, 10c, 10d aeration tank

The compression aspect of 11a hydraulic pressure

The decompression direction of 11b hydraulic pressure

The discharge direction of 12a mud

The absorption direction of 12b mud

Unit 13

The internal perisporium of 13a unit

14 annular membranes

15 existing microbial fixed carriers

The central part of 15a microbial fixed carrier

The action direction of 16a 16f external force

The outflow direction of 17a 17n mud

The tank of 21 purified treatment

22 thermopnore regions

A 23 fixing region

24 silk screens

25 fixing bed contact materials

Each cylindrical portion of 25a, 25a honeycomb duct

26 closest to the honeycomb duct of silk screen

Gap between 27 silk screens and honeycomb duct

29 thermopnore contact materials

28,28a～28f dissipates gas unit

Claims (7)

1. microbial fixed carrier, it is characterised in that it possesses at least 2 in multiple peristomes on the surface being formed in connection in the D structure thing being made up of Porous foaming body and the cavity portion of the inside through this D structure thing, and it flows in aeration tank,

By forming described cavity portion, specific surface area increases by 10%～20% than the described D structure thing of the state not forming described cavity portion.

2. microbial fixed carrier according to claim 1, it is characterised in that

Described Porous foaming body is polyurethane sponge system.

3. the microbial fixed carrier according to any one in claim 1～2, it is characterised in that

Described D structure thing is cube or cuboid.

4. the microbial fixed carrier according to any one in claims 1 to 3, it is characterised in that

Internal perisporium at the unit forming Porous structure of described foaming body is formed with annular membrane.

5. microbial fixed carrier according to claim 1, it is characterised in that

Described Porous foaming body is polyurethane sponge system, and described D structure thing is cube or cuboid, and the internal perisporium at the unit forming Porous structure of described foaming body is formed with annular membrane.

6. water purification treatment system, its adjacent outfit among the tank being cleaned the processed water of a process purified treatment dynamic from upstream side downstream effluent:

Thermopnore region, multiple thermopnore contact materials flow in processed water, carry out the purified treatment of thermopnore mode；And

Fixing bed region, fixed configurations has fixing bed contact material, is fixed the purified treatment of a mode；

In the bottom of described tank equipped with scattered gas unit,

By arranging the thermopnore contact material stoped in the flowing of thermopnore region on the border in thermopnore region and fixing bed region to the silk screen of the flowing in fixing bed region, the flowing making the processed water between thermopnore region and fixing bed region is likely to, and prevent the flowing to fixing bed region from thermopnore region of thermopnore contact material

At adjacent with described silk screen and the spaced apart regulation of the described fixing bed contact material in fixing bed region that configures and described silk screen interval, it is characterised in that

As described thermopnore contact material, use the microbial fixed carrier described in any one in claim 1～5.

7. water purification treatment system according to claim 6, it is characterised in that

As described fixing bed contact material, use the microbial fixed carrier described in any one in claim 1～5.