CN102206004A

CN102206004A - Double-chamber suspended biological carrier

Info

Publication number: CN102206004A
Application number: CN2011101020884A
Authority: CN
Inventors: 田秉晖; 张晓伟; 辛丽花; 张磊; 马玉涛; 杨磊
Original assignee: Research Center for Eco Environmental Sciences of CAS
Current assignee: Research Center for Eco Environmental Sciences of CAS
Priority date: 2011-04-22
Filing date: 2011-04-22
Publication date: 2011-10-05

Abstract

The invention discloses a biological suspended carrier, namely a double-chamber suspended biological carrier. Compared with a normal carrier, the double-chamber carrier is additionally provided with a region of a different environment so as to form double chambers. By adjusting a carrier material, a surface functional group, an indoor functional carrier and the like, and by designing a carrier chamber structure, a flow form, flow rate and the like, two superior flora habitats with different purifying functions are formed and bi-functional synchronous treatment which can be manually designed and technologically adjusted and optimized is realized in a biological water treatment process. Besides, the characteristics that the biomass is large and the biologic activity is high and the like after the suspended carrier is subjected to film formation are fully utilized by the double-chamber suspended biological carrier, so that the efficiency and the applicability of a biological treatment process are greatly improved.

Description

Two chambers suspended biological carrier

Affiliated technical field

The present invention relates to a kind of manufacturing improvement technology of water treating equipment, be applied to the central suspended biological carrier of biomembrance process treatment process of sewage and waste water.

Background technology

Efficient carrier is the core of the biological treatment of biomembrane process and sewage.The tempo of bio-carrier is very fast, and the kind of carrier of using is a lot of at present, plays an important role in the biological treatment of sewage.Since the seventies in last century, having occurred is the rigid carrier of representative with the honeycomb substrate, but little, the easy obstruction that is specific surface area of its carrier main drawback; Occurred flexible carrier, medium-soft carrier, combination carrier and suspension ball carrier since the eighties: flexible carrier overcomes the susceptible to plugging shortcoming of rigid carrier, but carrier easily hardens, the life-span is shorter; Medium-soft and combination carrier are the improvement of flexible carrier; The extension modulus of suspending carrier is big, difficult to be stopped up, but suspending carrier runs off easily.In patent of invention number is that 03115913.3 patent has been described a kind of new type functional floating stuffing, and it is to grip particle or block functional water processing material and the compound wing plate type suspending carrier made by plastic plate; Patent of invention a kind of carrier element that number has been 95192761.2 patented invention with many flow passages; Patent of invention number is 200610123717.1 patented invention, and a kind of some rhizoid shaped polymer bodies twine the suspended biological carrier that forms any face shapings of random layers; Patent of invention a kind of floating stuffing of forming in the baton round housing of surperficial perforate that places by float stone and hydrophobic foam plastics that number has been 200010132379.7 patented invention; Patent of invention number is 200410101669.6 patented invention suspending carrier that a kind of matrix material that is become to be grouped into by macromolecule resin and inorganic active makes; Patent of invention a kind of mesh cavernous body suspending carrier of making by macromolecule polymer material that number has been 201010117070.7 patented invention.

The present invention is on the basis of summing up present bio-carrier R﹠D work, prepare have the physical strength height, difunctional synchronous processing, the microorganic adhesion of manually design, process adjustments and optimization are effective, startup is quick, and has a bio-carrier of regulating advantages such as microorganism growth environmental functional, determine best preparation technology parameter, form the gordian technique of the preparation of novel bionical bio-carrier.

Summary of the invention

The present invention has invented a kind of pair of chamber suspended biological carrier in order to overcome the deficiency of traditional suspended biological carrier, by the control appropriate condition, makes in the carrier or between the carrier and has formed tangible dicyclo border, has improved biomass and biological activity.

The invention has the advantages that: 1) specific surface area of carrier is big, is convenient to biomembranous growth, has formed visibly different dicyclo border between two chambers, helps the growth of different microbial populations, thereby has set up the biological degradation environment that the mixing microorganisms flora is formed.2) in same carrier, provide the varying environment of microorganism growth, advantage such as it has effect stability, and cost of manufacture is low.3) artificial-strengthening can be passed through in the dicyclo border of this suspending carrier formation, provides and may go for there are several different advantage engineering bacterias simultaneously in carrier inside.4) this bio-carrier is in the membrane biological reaction actuator temperature is 20-30 ℃ of scope, and MLSS is when the 12g/L left and right sides, and suspended biological carrier improves 10%15% concerning the denitrogenation dephosphorizing effect of sanitary sewage with respect to common suspending carrier, have effect preferably.

Description of drawings

Accompanying drawing is an enforcement legend of the present invention:

Fig. 1,2 is respectively the designed suspended biological carrier synoptic diagram of the present invention;

Concrete embodiment

In conjunction with above-mentioned accompanying drawing and enforcement legend suspended biological carrier of the present invention is described further.

Suspending carrier of the present invention has designed and had two chambers simultaneously in the middle of same carrier, has visibly different environment between these two cells, and multiple different microbial growth can be provided like this, has increased the size of interior microbic activity of carrier and biomass.The concrete shape of carrier involved in the present invention is uncertain, as long as it can satisfy and have two kinds of different habitats simultaneously.As shown in Figure 1 be the spheric suspended biological carrier, two chambers are interior mistress; Fig. 2 is the suspending carrier of rectangular parallelepiped, and two chambers are chamber, the left and right sides.Bio-carrier is fluidisation in the middle of whole reactor, has strengthened the mass transfer effect between water, gas and the microorganism, and does not need the support facility, therefore can reduce investment and working cost in the water treatment procedure.

The suspending carrier and the traditional suspending carrier that are used for as shown in Figure 1 are respectively applied for membrane bioreactor carries out the cold operation denitrogenation dephosphorizing to city domestic sewage research, with the difference of mistress in the carrier shown in Figure 1 by the control dissolved oxygen, inner room is controlled to be anoxic environment, this suspending carrier is put into membrane bioreactor and is experimentized, the carrier filling ratio is 30%-70%, carry out continuous aeration at reactor bottom, when being the 10-30 ℃ of left and right sides, tests temperature-averaging, the clearance result of pollutent is: COD all can reach more than 95%, ammonia nitrogen removal frank is about 75%-85%, nitrogen removal rate is about 60%-70%, be respectively at the clearance of common suspending carrier under the identical hydraulics to pollutent: COD is about 85%, ammonia nitrogen is 60%-75%, total nitrogen is 50%-60%, and the treatment effect of the suspending carrier that the present invention is used is better.

Claims

1. two chambers suspended biological carrier, on the basis of the single environment of common suspending carrier, two kinds of environment that in identical carrier, exist have been designed, therefore in this suspending carrier, can there be several different advantage engineering floras, the treatment effect of enhanced sewage so greatly simultaneously.

2. according to claim 1 pair of chamber suspending carrier is characterized in that: can be by the difference of the various conditions of control, in carrier, create two kinds of visibly different environment, make it form two chambers, as: the difference by the control dissolved oxygen conditions creates aerobic-anaerobic dicyclo border, by in the middle of carrier, add some efficiently engineering bacteria (as have a liking for utmost point bacterium, exclusive degradation bacteria etc.), make it in carrier, form routine-exclusive dicyclo border; Or routine-oxidation (reduction) dicyclo border, routine-acid (alkali) property dicyclo border etc.

3. according to claim 1 pair of chamber suspending carrier is characterized in that: waste water and active sludge can pass through the directly unrestricted flow of size of the aperture and the perforate density in hole between two Room of carrier, also can flow mutually between two chambers by perforate, need not additionaling power, scavenging process not takes place respectively in waste water in two kinds of environment, strengthened the treatment effect of waste water.

4. the according to claim 1 pair of design shape that the chamber suspending carrier is concrete can be spherical shape as figure (1), the little spherical shape of fixed hollow is fixed within the ectosphere, constitutes two chambers between the sizes of balls; Also can be rectangular-shaped shape shown in figure (2), this design breaks it into two, and is divided into chamber, the left and right sides, makes two Room form the environment of multiple microorganism growth by Artificial Control.

5. according to claim 1 pair of chamber suspending carrier is characterized in that: twoly indoorly can add some different weighting materials, can increase the area of microorganic adhesion, guarantee that the microorganism on the bio-carrier has higher biomass and biological activity, for a space is comparatively stably created in the microbial growth breeding, while is also played certain buffered effect to the regulatory function of self, thereby improved the anti-shock loading of biofilm reactor, guaranteed metastable water outlet effect.

6. according to claim 1 pair of chamber suspending carrier is characterized in that: its material density is less, carrier can be suspended in the top of reactor, process easily and corrosion-resistant material, its material can be utilized making such as zeolite small-particle, PVC, UPVC, polyurethane foam, high molecular polymerization plastics, the poly-cruel resin of ammonia, fiber, also can be the waste made of these materials.

7. according to claim 1 pair of chamber suspending carrier is characterized in that: the size of described pair of chamber carrier: its spheric suspending carrier diameter can be designed to 5-15cm, and the diameter of carrier inner room can be 3-10cm; The suspending carrier length of rectangular parallelepiped can be designed to 5-15cm, and width can be designed to 5-10cm, and height can be designed to 5-10cm.

8. according to claim 1 pair of chamber suspending carrier is characterised in that: the biofilm biomass of its carrier can reach 10-15mg/L, the COD clearance can reach 95%, ammonia nitrogen removal frank can reach 85%, and the clearance of total nitrogen can reach 75%, and the clearance of total phosphorus can reach 70%.