CN211255446U - Slow-release solid carbon source with microbial carrier effect - Google Patents
Slow-release solid carbon source with microbial carrier effect Download PDFInfo
- Publication number
- CN211255446U CN211255446U CN201922193986.XU CN201922193986U CN211255446U CN 211255446 U CN211255446 U CN 211255446U CN 201922193986 U CN201922193986 U CN 201922193986U CN 211255446 U CN211255446 U CN 211255446U
- Authority
- CN
- China
- Prior art keywords
- carbon source
- solid carbon
- slow
- spiral body
- columnar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a slow-release solid carbon source with the function of a microbial carrier, which is a columnar spirochete structure taking the blend of plant components and artificially synthesized degradable polymers as raw materials; the biological nitrogen-removing agent not only has the function of slowly releasing the carbon source, but also can be used as an attachment carrier of microorganisms, is easy to attach the microorganisms due to large specific surface area, and can improve the denitrification efficiency; the device has the advantages of simple structure, no need of a grinding tool for preparation, simple preparation process, low manufacturing cost and convenient use, and is suitable for denitrification and denitrification treatment of sewage in a large sewage tank.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, concretely relates to structural improvement of biodegradable solid carbon source with microbial carrier effect.
Background
With the strict implementation of intercepting sewage sources and strengthening the operation management of sewage treatment plants in China, how to treat the nitrogen-containing sewage to meet the relevant discharge standard becomes a technical problem concerned by the industry; the removal of the nitrate nitrogen is one of the bottlenecks of water pollution control, and the difficulty of the current industry is how to simply and efficiently control the carbon/nitrogen ratio in the sewage and fully exert the capability of the microorganisms in catalyzing the denitrification reaction. The technical development direction of removing nitrate and nitrogen is that solid carbon source is used as carbon source supplement and also used as microorganism carrier for denitrification. The method utilizes water-insoluble solid organic matters as attachment carriers of microorganisms and provides carbon sources for denitrifying microorganisms.
Research shows that the blend of plant components and artificially synthesized degradable polymers is used as a solid carbon source for denitrification process, so that nitrate in water can be effectively removed, and the operation cost is obviously reduced. The biodegradability of the solid carbon source, the specific surface area, and the number of microorganisms attached thereto are all factors that influence the denitrification rate.
Through retrieval, Chinese patent (patent No. 201010563775.1) discloses a preparation method of a composite biological filler, which adopts polyvinyl chloride as a framework material to attach zeolite and expanded vermiculite to prepare a polyhedral hollow sphere and a pall ring, has complex structure, needs a mould for preparation, has complex process and high preparation cost, is mainly non-degradable, cannot provide a carbon source for the denitrification reaction of microorganisms, can only utilize a small amount of microorganisms to perform sewage treatment, and has low efficiency of removing nitrate nitrogen; chinese patent (patent No. 201620357202.6) discloses a 'suspension ball filler for sewage treatment', Chinese patent (patent No. 201220127174.0) discloses a 'novel structure biological disc easy for microorganism to form a film', the two patents are the same as the above patents, only serve as carriers of microorganism to form a film, do not provide carbon sources, have complex structures, need moulds, have high preparation cost and low efficiency of removing nitrate and nitrogen. The Chinese patent application (application No. 201910437550.2) discloses a directly-thrown completely biodegradable slow-release solid carbon source and a preparation method and application thereof, which only serve as a slow-release carbon source without the action of a microbial carrier, plant components and degradable polymers are simply and physically mixed to form a spherical shape, have small bulkiness and are easy to collapse and fall off when meeting water, so that a fiber net and non-woven fabrics are adopted for multilayer packaging, and a shell is added for preventing floating, so that the preparation process is complex and the use cost is high.
In conclusion, at present, no more reports are provided on the structural form of the slow-release solid carbon source with the function of the microbial carrier. And the structural form in the prior art is as follows: or the single microbial carrier is used without the function of slowly releasing the carbon source; or as a slow-release carbon source without the function of a microbial carrier; and the structural forms of the components are complex, the preparation process is complicated, the preparation cost is increased, the efficiency of removing nitrate nitrogen is low, and the method is not suitable for denitrification treatment of nitrate nitrogen in sewage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a slowly-releasing solid carbon source with microorganism carrier effect makes it have simple structure, preparation convenience, advantage that the cost of manufacture is low, both be the solid carbon source that can slowly-release and the attached carrier of microorganism, is suitable for the denitrogenation of nitre nitrogen in the sewage to handle.
The utility model provides a slow-release solid carbon source with the function of a microbial carrier, which is characterized in that the solid carbon source is a columnar spirochete structure taking the blend of plant components and artificially synthesized degradable polymers as raw materials; the columnar spiral body is composed of a solid bar, and the diameter of the solid bar is 3-5 mm; the columnar spiral body is provided with a thread gap (namely a gap between solid bars), the outer diameter of the columnar spiral body is 30-60 mm, and the cross section of the columnar spiral body is circular, triangular, quadrilateral or other geometric shapes.
The utility model is also characterized in that the diameter of the solid strip is 4 mm-5 mm; the outer diameter of the columnar spiral body is 40 mm-60 mm, and the thread clearance of the columnar spiral body is 0.5 mm-2 mm.
The utility model is also characterized in that the height of the columnar spirochaeta is 10 cm-25 cm, and the thread clearance of the columnar spirochaeta is 1 mm-1.5 mm.
Can find out by the aforesaid, the utility model discloses a solid carbon source not only has the effect of slowly-releasing carbon source, becomes the attached carrier of microorganism again, behind the domestication biofilm formation through the microorganism fungus, can throw and put in the effluent water sump, also can arrange in the effluent water sump through hanging, is applicable to several hundred and even the denitrogenation of sewage is handled in several thousand cubic meters effluent water sumps. Of course, the utility model discloses a solid carbon source in use can put little spiral body cover in big spiral body to increase specific surface area, make the increase of the adhering amount of microorganism fungus, promote the effect of getting rid of to nitrate nitrogen in the sewage.
The solid carbon source of the utility model is easy to be attached by microorganism due to large specific surface area, and can improve the denitrification efficiency; the device has the advantages of simple structure, no need of a grinding tool in preparation, simple and convenient preparation process, low manufacturing cost and convenient use, and is suitable for denitrification and denitrification treatment of sewage in a large sewage tank.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a columnar spirochete for sustained release of a solid carbon source with a microorganism carrier effect designed in an embodiment of the present invention, wherein R is a diameter of a solid bar, and R is an outer diameter of the columnar spirochete;
fig. 2 is a side view of a structure of a columnar spiral body for sustained release of a solid carbon source with a microorganism carrier according to an embodiment of the present invention, wherein D is a thread gap of the columnar spiral body and D is a height of the columnar spiral body.
Fig. 3 is a schematic structural diagram of the nested arrangement of the columnar helices for sustained release of the solid carbon source in an embodiment of the present invention.
Detailed Description
The following describes the embodiments of the present invention with reference to the accompanying drawings. The following embodiments are only for explanation and help understanding of the technical solution of the present invention, and should not be considered as a specific limitation of the technical solution of the present invention. The raw materials, equipment, processes, conditions, detection methods and the like are common general knowledge, common technologies and conventional methods in the field; such as: the raw materials for the slow-release solid carbon source with the function of the microbial carrier and the preparation method thereof can be implemented according to the content disclosed in the Chinese patent (patent No. 201110113587.3), and can also be implemented by other known technical methods without special limitation.
Referring to fig. 1 and 2, the slow release solid carbon source with the function of microbial carrier of the present invention is prepared by a twin-screw extruder. And (2) fully and uniformly mixing the blended materials, putting the mixture into a double-screw extruder, extruding a solid strip (the diameter R is 5mm) at 120-160 ℃, winding the mixture on a rotating cylinder (the diameter R is 50mm) while the mixture is hot, keeping the gap d of the solid strip at 1mm (thread gap) during winding, and cutting the mixture into any length according to requirements after cooling to obtain the slow-release solid carbon source in the form of a columnar spirochete (the R is 60 mm). Of course, when the solid bar is wound, a cylinder with the diameter of 40mm can also be used for winding, and the outer diameter R of the obtained slow-release solid carbon source is 50 mm. In order to increase the specific surface area, a solid carbon source 20 with an R of 50mm may be placed inside a solid carbon source 10 with an R of 60mm, as shown in fig. 3.
The utility model discloses a solid carbon source adopts activated sludge to tame earlier and hangs the membrane when using, makes the microbial inoculum adhere to on solid carbon source surface, puts or hangs in the effluent water sump again, carries out the denitrification nitrogen removal of sewage and handles.
Claims (5)
1. A slow-release solid carbon source with the function of a microbial carrier is characterized in that the solid carbon source has a cylindrical spirochete structure;
the columnar spiral body is composed of a solid bar, and the diameter of the solid bar is 3-5 mm;
the columnar spiral body is provided with a thread gap, and the outer diameter of the columnar spiral body is 30-60 mm.
2. The slow release solid carbon source of claim 1, wherein the solid strip has a diameter of 4mm to 5 mm; the outer diameter of the columnar spiral body is 40 mm-60 mm, and the thread clearance is 0.5 mm-2 mm.
3. The solid carbon source according to claim 1, wherein the height of the columnar spiral body is 10cm to 25cm, and the thread clearance of the columnar spiral body is 1mm to 1.5 mm.
4. The solid carbon source according to any one of claims 1 to 3, wherein the solid carbon source is in the form of a small cylindrical helix nested within a large cylindrical helix.
5. The slow-release solid carbon source of claim 1, wherein the solid carbon source is prepared from a blend of plant components and an artificially synthesized degradable polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193986.XU CN211255446U (en) | 2019-12-09 | 2019-12-09 | Slow-release solid carbon source with microbial carrier effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922193986.XU CN211255446U (en) | 2019-12-09 | 2019-12-09 | Slow-release solid carbon source with microbial carrier effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211255446U true CN211255446U (en) | 2020-08-14 |
Family
ID=71988718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922193986.XU Active CN211255446U (en) | 2019-12-09 | 2019-12-09 | Slow-release solid carbon source with microbial carrier effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211255446U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115784430A (en) * | 2022-12-07 | 2023-03-14 | 华夏碧水环保科技股份有限公司 | Rapid co-culture method of aerobic granular sludge and biological carrier |
-
2019
- 2019-12-09 CN CN201922193986.XU patent/CN211255446U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115784430A (en) * | 2022-12-07 | 2023-03-14 | 华夏碧水环保科技股份有限公司 | Rapid co-culture method of aerobic granular sludge and biological carrier |
| CN115784430B (en) * | 2022-12-07 | 2024-02-20 | 华夏碧水环保科技股份有限公司 | Rapid co-culture method for aerobic granular sludge and biological carrier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1331777C (en) | Nitrating aeration biological filting tank of oyster shell filling | |
| CN204939090U (en) | A kind of small-sized detachable module formula artificial wet land system | |
| JPS63229144A (en) | Carrier substance for fixing microbe | |
| CN106219736B (en) | Complex biological filtrate for biological aerated filter | |
| CN211255446U (en) | Slow-release solid carbon source with microbial carrier effect | |
| CN103058362B (en) | Suspension filler for water treatment | |
| CN108529747A (en) | Nitration denitrification simultaneous denitrification method | |
| CN111777175A (en) | Suspended filler for providing slow-release carbon source | |
| CN108383234A (en) | A kind of modified MBBR techniques suspending carrier | |
| CN113428972B (en) | Preparation mold and preparation method of filler special for constructed wetland | |
| CN204714601U (en) | A kind of microorganism filter bed device | |
| CN201901615U (en) | Restraint type elastic fiber biologic packing | |
| CN103351060B (en) | AO reactor for water treatment | |
| CN104773816A (en) | Filling material for sewage treatment and preparation method of filling material | |
| CN204752337U (en) | Biological bacterial embedding device in preliminary treatment biological reaction pond | |
| CN215049084U (en) | Microorganism water body purification system | |
| CN204958526U (en) | Modified biofilm reactor of boiling ball | |
| CN204643943U (en) | A kind of combination biologic packing material for composite bacteria ABR reactor | |
| CN207986794U (en) | A kind of no aeration and biological membrane carrier of sewage disposal | |
| CN210340462U (en) | Combined biological filler for sewage treatment | |
| CN210736325U (en) | MBBR filler and biofilm reactor | |
| CN112340839A (en) | Combined bio-ball filler for sewage treatment and application thereof | |
| CN106986465B (en) | Biological hydrophilic filter brush with novel structure | |
| CN201999788U (en) | Ring-shaped ecological medium suspended in water | |
| CN206607083U (en) | A kind of modularization controlling device of black and odorous water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |