CN202072582U - Dephosphorization and denitrification waste-water treatment standard discharge integrated equipment - Google Patents
Dephosphorization and denitrification waste-water treatment standard discharge integrated equipment Download PDFInfo
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- CN202072582U CN202072582U CN2011200572074U CN201120057207U CN202072582U CN 202072582 U CN202072582 U CN 202072582U CN 2011200572074 U CN2011200572074 U CN 2011200572074U CN 201120057207 U CN201120057207 U CN 201120057207U CN 202072582 U CN202072582 U CN 202072582U
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Abstract
The utility model discloses dephosphorization and denitrification waste-water treatment standard discharge integrated equipment, comprising a vertical flow settling tank, an active filtering material biological filter tank, a biological denitrification filtering tank and a dephosphorization filtering tank which are connected sequentially by pipelines, wherein the biological denitrification filtering tank comprises a tank body; the bottom of the tank body is provided with a water inlet pipe and a water distributing backflush device which is communicated with the water inlet pipe; a filtering material layer is arranged above the water distributing backflush device; a water outlet pipe is arranged above the filtering material layer; and microorganisms are dispersed in the filtering material layer. The equipment has the beneficial effects that the problem of high difficulty in degradation of the content of ammonia and nitrogen in micro-pollution water is effectively solved, the removing rate can reach more than 95%, the treated discharged water can reach and is superior to the class III water standard of environment quality for surface water, the equipment can be used for various sewage treatment engineering, the investment is low, the efficiency is high and the social significance for reliving the problem of water eutrophication in China is great.
Description
Technical field
The utility model relates to a kind of sewage treatment equipment, particularly a kind of denitrogenation dephosphorizing wastewater treatment qualified discharge integrated equipment.
Background technology
The waste water treatment project of China's construction is generally only considered the removal effect of organic contamination index at present, with organic contamination index CODMn and BOD5 removal effect as the main valency index of commenting of water treatment effect, processing for materials such as nitrogen, phosphorus is slightly inadequate, and this also is to cause one of serious reason of most source water eutrophication situations.Part city even resource of water supply all are subjected to pollution in various degree.
China's water pollution mainly shows eutrophication and the numerous living phenomenon of algae, its essence is the ecotope effect of oxygen consumption organic and nitrogen, phosphorus compound.They have become the focus of China environmental protection even very thorny control governing problem.
For the improvement of micro-polluted water, problem such as the at present domestic treatment process that adopt are technology such as oxidation ditch, A2/O, A/O more, and the ubiquity floor space is big, and processing efficiency is low can't effectively be removed ammonia nitrogen.For the improvement of micro-polluted water, though people pay close attention, and drop into a large amount of financial resources, there is not a kind of investment little, the technology that processing efficiency is high can address this problem.
Summary of the invention
For solving above technical deficiency, the utility model provides a kind of denitrogenation dephosphorizing wastewater treatment qualified discharge integrated equipment, and it can effectively remove nitrogen and phosphorus in the waste water, drop into little, the processing efficiency height.
The utility model is realized by following measure:
A kind of denitrogenation dephosphorizing wastewater treatment qualified discharge integrated equipment of the present utility model, comprise the vertical sedimentation tank, active filter biological filter, biological denitrificaion filter tank and the dephosphorization filter tank that link to each other by pipeline successively, described biological denitrificaion filter tank comprises the pond body, the water distribution backflush device that body bottom, pond is provided with water inlet pipe and is connected with water inlet pipe, described water distribution backflush device top is a filter material layer, described filter material layer top is scattered with microorganism for being provided with rising pipe in the filter material layer.
Preferably, be provided with two-layer filter material layer up and down in the above-mentioned dephosphorization filter tank, the particle diameter of filter medium difference of described two-layer filter material layer.
Preferably, the particle diameter of filter medium of filter material layer is 3 ~ 5mm in the above-mentioned biological denitrificaion filter tank.
The beneficial effects of the utility model are: the utility model efficiently solves micro-polluted water ammonia, the big problem of nitrogen content degraded difficulty, clearance can reach more than 95%, water outlet after the processing can reach and be better than surface water environment quality III class water body standard, and can be used in the middle of all kinds of waste water treatment projects, less investment, the efficient height has enormous social meaning for alleviating China's body eutrophication problem.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation in biological denitrificaion filter tank.
Among the figure: 1 vertical sedimentation tank, 2 active filter biological filters, 3 biological denitrificaion filter tanks, 4 dephosphorization filter tanks,
5 pond bodies, 6 water inlet pipes, 7 water distribution backflush devices, 8 filter material layers, 9 rising pipes.
Embodiment
As shown in Figure 1, vertical sedimentation tank 1 is mainly used in the silt that washes away when removing most suspended substance and rainfall in the sewage, to guarantee the normal operation of follow-up biological filter.
The bigger filler of specific surface area is housed in the active filter biological filter 2, form microbial film by the fixed growth technology at filling surface, in the continuous contact process of water body and microbial film, make nutritive substances such as organism and nitrogen be absorbed and remove by microbial film, the active filter biological filter needs to replenish certain air in operational process, so not only for microorganism growth provides enough dissolved oxygens, and help the biomembranous update of the old and new, guarantee biomembranous high oxidative capacity.The bottom of active filter biological filter 2 is to remove the organism in the sewage, and the dominant growth heterotrophic bacterium begins organic concentration along the filter tank short transverse from the bottom and successively decreases, its degradation rate trend that also tapers off.Because organic concentration is higher, and heterotrophic microorganism is in increased logarithmic phase, BOD loading is also higher at inlet section.The top of biological filter is mainly carried out nitrated to the ammonia nitrogen in the sewage, in this section filter tank, because organic concentration is lower, heterotrophic microorganism is less, and dominant bacteria can be oxidized to the ammonia nitrogen in the sewage nitrate nitrogen or nitrite nitrogen for from nourishing one's nature nitrifier.
Biological denitrificaion filter tank 3 comprises pond body 5, the water distribution backflush device 7 that body 5 bottoms in pond are provided with water inlet pipe 6 and are connected with water inlet pipe 6, and water distribution backflush device 7 tops are filter material layer 8, filter material layer 8 tops are scattered with microorganism for being provided with rising pipe 9 in the filter material layer 8.
Used filtrate is that a kind of process is fired in the filter material layer 8, the novel filtrate that is covered with micropore, this particle diameter of filter medium is generally 3-5mm, very large specific surface area is arranged, reach as high as 3.98m2/cm3, physical strength is big, not yielding and broken, microorganic adhesion amount height, easy to be filmed, and adsorptivity and the saturating property of filter are preferably arranged.
Microbial population in the biological denitrificaion filter tank 3 is had a liking for multiple denitrifying bacteria such as phosphorus bacterium group by a large amount of facultative anaerobes, thiobacillus denitrificans, heterotrophic microorganism and AOC and is become, because the novel filtrate in this pond has rough porous, characteristic that specific surface area is big, make the microorganic adhesion amount big, can reach 10-15g/l, the performance of therefore, flocculation, absorption, sedimentation and degradation of organic substances is big.Upper and lower at filtrate, aspects such as biofilm biomass, microbe species, the organic speed of removal are all different, the organic concentration height in the waste water of the top of filtrate, and microbial nutrition is good, reproduction speed is fast, biofilm biomass is many and based on bacterium, organic pollutant removal speed height is along with the filter material layer degree of depth increases, organic content in the waste water reduces, biofilm biomass also reduces, and microorganism is senior from rudimentary trend, and organic matter removal speed reduces.
Because used novel particle diameter of filter medium is less, has only 3-5mm, and rough porous, have bigger suspended substance removal efficiency and cut the mud amount, the suspension content in the water outlet is few, SS＜18mg/l, therefore, the integrated artistic flow process can not established second pond, can qualified discharge or reuse.
Technological principle:
Sewage enters active filter biological filter 2 through post precipitation, and the gas in the filter tank, water are all the upward flow attitude.When sewage is flowed through filter material layer from bottom to top, under the aeration oxygen supply condition that microbial film is provided in the filter material layer bottom, make organism and ammonia nitrogen in the waste water obtain degraded and nitrated.Nitrated is one two step process, utilizes two quasi-microorganisms respectively, i.e. nitrite bacteria and nitrate bacterium.At first ammonia nitrogen changes into nitrite by nitrite bacteria, and then Nitromonas is converted into nitrate to nitrite.Nitrite bacteria and nitrate bacterium are referred to as nitrifier, and they utilize the energy that discharges in the ammonia nitrogen conversion process as self the metabolic energy.More than two reaction process all be the process of releasing energy, nitrite bacteria and nitrate bacterium are exactly that the energy that utilize these two reactions to produce synthesize the new bacteria body and keep normal vital movement.Ammonia nitrogen is converted into nitric nitrogen and has reduced their oxygen requirement.In addition, regularly utilize the water outlet after handling that back flushing is carried out in the filter tank, get rid of the aging microbial film of filter material surface propagation, to guarantee microbic activity.Subsequently, mixed solution enters the biological denitrificaion filter tank, finishes denitrification under anoxia condition.Denitrification process is the process of denitrifying bacteria alienation nitrate, and the nitrate that is produced by nitrifier changes into nitrogen under the effect of denitrifying bacteria, overflow from water, finally gets rid of from system.Therefore, the final removal of nitrogen will be finished by the denitrification process that carries out in the biological denitrificaion filter tank.Denitrification effect can reach 100% in theory.Carrying out dephosphorization by dephosphorization agent at last in double layer filter handles.
The foregoing description is described to be in order to specify this patent; though describe by specific term in the literary composition; but can not limit the protection domain of this patent with this; being familiar with the personage of this technical field can be after the spirit of understanding this patent and principle change or revises it and reach equivalent purpose; and this equivalence change and modification all should be covered by the claim scope and define in the category.
Claims (3)
1. denitrogenation dephosphorizing wastewater treatment qualified discharge integrated equipment, it is characterized in that: comprise the vertical sedimentation tank, active filter biological filter, biological denitrificaion filter tank and the dephosphorization filter tank that link to each other by pipeline successively, described biological denitrificaion filter tank comprises the pond body, the water distribution backflush device that body bottom, pond is provided with water inlet pipe and is connected with water inlet pipe, described water distribution backflush device top is a filter material layer, and described filter material layer top is for being provided with rising pipe.
2. according to the described denitrogenation dephosphorizing wastewater treatment of claim 1 qualified discharge integrated equipment, it is characterized in that: be provided with two-layer filter material layer up and down in the described dephosphorization filter tank, the particle diameter of filter medium difference of described two-layer filter material layer.
3. according to the described denitrogenation dephosphorizing wastewater treatment of claim 1 qualified discharge integrated equipment, it is characterized in that: the particle diameter of filter medium of filter material layer is 3 ~ 5mm in the described biological denitrificaion filter tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200572074U CN202072582U (en) | 2011-03-07 | 2011-03-07 | Dephosphorization and denitrification waste-water treatment standard discharge integrated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200572074U CN202072582U (en) | 2011-03-07 | 2011-03-07 | Dephosphorization and denitrification waste-water treatment standard discharge integrated equipment |
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| CN202072582U true CN202072582U (en) | 2011-12-14 |
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| CN2011200572074U Expired - Lifetime CN202072582U (en) | 2011-03-07 | 2011-03-07 | Dephosphorization and denitrification waste-water treatment standard discharge integrated equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819573A (en) * | 2016-05-12 | 2016-08-03 | 北京汇恒环保工程股份有限公司 | Sewage treatment equipment and method |
| CN107721065A (en) * | 2017-09-28 | 2018-02-23 | 江苏大湖环境工程有限公司 | A kind of integrated form treatment tank |
-
2011
- 2011-03-07 CN CN2011200572074U patent/CN202072582U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105819573A (en) * | 2016-05-12 | 2016-08-03 | 北京汇恒环保工程股份有限公司 | Sewage treatment equipment and method |
| CN107721065A (en) * | 2017-09-28 | 2018-02-23 | 江苏大湖环境工程有限公司 | A kind of integrated form treatment tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG SIFON ENVIRONMENTAL PROTECTION + BIO-ENER Free format text: FORMER OWNER: SHANDONG SIFON YUANTONG ENVIRONMENTAL PROTECTION CO., LTD. Effective date: 20130715 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130715 Address after: Tianchen Avenue in Ji'nan high tech Development Zone of Shandong province 250101 City No. 1151 Patentee after: Shandong Sifon Environmental Protection & Bio-Energy Co., Ltd. Address before: 250101 Shandong Province, Ji'nan City calendar (high-tech) zone Tianchen Avenue No. 1151 Patentee before: Shandong Shifang Yuantong Enviromental Protection Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20111214 |
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| CX01 | Expiry of patent term |