CN105198083A - Integrated sewage treatment device and method - Google Patents
Integrated sewage treatment device and method Download PDFInfo
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- CN105198083A CN105198083A CN201510591516.2A CN201510591516A CN105198083A CN 105198083 A CN105198083 A CN 105198083A CN 201510591516 A CN201510591516 A CN 201510591516A CN 105198083 A CN105198083 A CN 105198083A
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Abstract
The invention relates to the technical field of sewage treatment, in particular to an integrated sewage treatment device and method. The integrated sewage treatment device comprises a shell, a sewage inlet, a sewage outlet and sewage treatment device bodies at multiple levels, the sewage treatment device bodies at the multiple levels are connected in the shell in series, and the sewage treatment device body on each level is formed by connecting an aerobiotic chamber and an anoxic chamber in series; each sewage treatment device body is filled with water purifying packing for denitriding sewage. The sewage enters the shell from the sewage inlet and passes through the serial-connection sewage treatment device bodies at the multiple levels in a baffling state to be denitrided. As the series structure of the sewage treatment device bodies at the multiple levels is adopted, it is unnecessary to additionally arrange a sewage internal reflux facility or a power facility for driving internal reflux, the steps of equipment operation and commissioning are simplified, the difficulty of later-stage maintenance is lowered, and cost is reduced.
Description
Technical field
The present invention relates to technical field of sewage, be specifically related to a kind of integrated sewage treating apparatus and method.
Background technology
Along with the fast development of economic society and the quickening of process of industrialization, water requirement increases increasingly, and water resources has become the important factor of restriction social development.At present, most of cities and towns of China have substantially achieved effective collection of sanitary sewage and have focused on, but the Construction and operation administrative situation of China rural area and samll cities and towns' regional waste-water treatment facility is not very good, the reason of this present situation is caused to come from rural area and samll cities and towns regional population dispersion on the one hand, be not suitable for adopting pipe network unification to carry out collection and treatment, specialized sewage farm stands in the operational management personnel of the regional for want of specialty in rural area and samll cities and towns and is difficult to continue to run on the other hand.Therefore, it is possible to adapt to the sewage disposal of integrated small waste disposal plant for rural area and samll cities and towns area of the improvement of decentralized type sewage, especially denitrogenation processing is extremely important.
Existing integrated small waste disposal plant mainly utilizes biological process to carry out denitrogenation processing to sewage.Biological process denitrogenation is by nitrification and denitrification two process implementations, and its technique is simple, processing power is strong, operation scheme is flexible, is highly suitable for the sewage disposal in rural area and samll cities and towns area.The denitrification dephosphorization technique be most widely used in biological process is anoxic/aerobic (A/O) and improved technology thereof, and this technique is primarily of anoxic pond, Aerobic Pond and settling tank composition, better to dirty organic pollutants, nitrogen phosphorus ligands effect.
But existing A/O waste disposal plant often needs to add extra power set makes sewage internal reflux finally realize sewage water denitrification.The interpolation of power set makes the cost of sewage disposal device greatly promote.The interpolation of power set also makes the operation of whole equipment debugging complicated, adds the difficulty of later maintenance.And once power set cannot work, whole equipment will be caused to run well.Existing A/O waste disposal plant, except arranging this problem of extra power device, also there will be the situation of anoxic section carbon source deficiency.Carbon source deficiency will cause the denitrification of anoxic section to be restricted, and affects water outlet total nitrogen TN (TotalNitrogen) concentration.In addition, may occur in the anoxic storehouse of waste disposal plant to assimilate anti-nitration reaction, ammonia nitrogen concentration be rebounded, affects effluent characteristics.
Summary of the invention
The technical problem to be solved in the present invention is: solve existing A/O waste disposal plant and be provided with the problem that to realize sewage internal reflux, extra power device makes that plant running debugging maintenance is complicated, cost increases.
For realizing above-mentioned goal of the invention, the invention provides a kind of integrated sewage treating apparatus and method.
According to a first aspect of the present invention, provide a kind of integrated sewage treating apparatus, comprising:
Housing, arranges at least two-stage waste disposal plant of series connection in housing;
Wherein, first step waste disposal plant comprises the first aerobic bin and the first anoxic bin of series connection;
Second stage waste disposal plant comprises the second aerobic bin and the second anoxic bin of series connection;
First aerobic bin, the first anoxic bin, the second aerobic bin and the second anoxic bin passed through the passage that flow cavitation result is baffling state by mouth of a river series connection formation;
Housing sets into the mouth of a river, water outlet, the position of described water inlet is not less than the position of water outlet; Water warfare filler is filled with in first step waste disposal plant with in the waste disposal plant of the second stage.
Preferably, Water warfare filler is microbe stuffing, and cumulative volume accounts for the 50%-60% of first step waste disposal plant and the inner useful volume of second stage waste disposal plant respectively.
Preferably, waste disposal plant also comprises a point storehouse dividing plate;
Divide storehouse dividing plate, be arranged on described enclosure interior, enclosure interior be divided into first step waste disposal plant and second stage waste disposal plant.
Preferably, waste disposal plant also comprises micro-pore aeration parts;
Micro-pore aeration parts, are separately positioned in the first aerobic bin, the first anoxic bin, the second aerobic bin and the second anoxic bin, for controlling aeration situation.
Preferably, also comprise a point storehouse water replanishing device,
First aerobic bin is provided with the first water-in;
First anoxic bin is provided with the second water-in;
Second anoxic bin is provided with the 3rd water-in;
First water-in, the second water-in and the 3rd water-in are connected with water inlet respectively;
Point storehouse water replanishing device enters from described first water-in, the second water-in and the 3rd water-in for controlling sewage simultaneously.
Preferably, the flooding quantity of the first water-in, the second water-in and the 3rd water-in accounts for 70%-85%, 10%-20%, 5%-10% of enclosure interior sewage total amount respectively.
Preferably, be in series with precipitation bin after the waste disposal plant of the second stage, described settling banker chamber interior is provided with swash plate or inclined tube.
Preferably, waste disposal plant also comprises:
The 3rd aerobic bin is in series with between first aerobic bin and the first anoxic bin;
The 4th aerobic bin is in series with between second stage waste disposal plant and precipitation bin.
Preferably, waste disposal plant is the cylindrical structure that cube structure or two ends are convex surface.
According to a second aspect of the present invention, provide a kind of sewage water treatment method using above-mentioned waste disposal plant, comprising:
Make sewage enter described enclosure interior along described water-in, carry out purifying treatment by the multi-stage sewage treatment device of described series connection successively with baffling state;
Make sewage flow into described precipitation bin precipitate, the sewage after precipitation is discharged along described water outlet;
Wherein, the time that sewage stops in described housing is 12 hours.
Integrated sewage treating apparatus provided by the invention, the mode adopting multi-stage anaerobic bin/aerobic bin series connection to use, makes sewage, in device inside, the reaction of a series of nitrification and denitrification occur, finally makes the effective denitrogenation of sewage.Compared to existing A/O waste disposal plant, the present embodiment, without the need to adding internal reflux and driving the power-equipment of internal reflux, simplifies the process that equipment runs debugging, reduces the difficulty of later maintenance, reduce cost.It also avoid because the waste disposal plant that causes of the power-equipment fault situation that cannot operate simultaneously.In addition, in two anoxic bins, also add certain sewage, the carbon source in anoxic bin is effectively supplemented, facilitates the carrying out of denitrification.Add the aerobic storehouse of one-level before last precipitation bin, prevent the generation making water outlet ammonia nitrogen in sewage concentration rebound phenomena due to assimilation denitrification, ensure the quality of water outlet.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the integrated sewage treating apparatus schematic diagram that first embodiment of the invention provides;
Fig. 2 is the integrated sewage treating apparatus schematic diagram that second embodiment of the invention provides;
Fig. 3 is the left view of the integrated sewage treating apparatus shown in Fig. 2;
Fig. 4 is the vertical view of the integrated sewage treating apparatus shown in Fig. 2;
Fig. 5 is the integrated sewage treating apparatus schematic diagram that third embodiment of the invention provides;
The integrated sewage treating apparatus current flow direction schematic diagram that Fig. 6 provides for third embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
As shown in Figure 1, the integrated sewage treating apparatus that the present embodiment provides comprises: housing 1, water inlet 16, water outlet 17, Water warfare filler and micro-pore aeration parts.
Wherein, housing 1 is provided with water inlet 16 and water outlet 17.Water inlet 16 is arranged on the upside of housing 1 sidewall, and water outlet 17 is arranged on the upside of sidewall relative with water inlet 16 on housing 1, and position is a little less than water inlet 16.Preferably, water inlet 16 with water outlet 17 are equipped with valve, for controlling the flow velocity of water inlet or water outlet.
Housing 1 inside is provided with first step Sewage water treatment device and the second stage waste disposal plant of series connection.
Wherein, first step waste disposal plant comprises the first aerobic bin 11 and the first anoxic bin 12 of series connection; Second stage waste disposal plant comprises the second aerobic bin 13 and the second anoxic bin 14 of series connection.Preferably, the first aerobic bin 11 is connected with water inlet 16.
Precipitation bin 15 is also in series with after second anoxic bin.Precipitation bin 15 is connected with water outlet 17.Preferably also be provided with the dividing plate for changing the direction of a stream of water in precipitation bin 15, current are flowed into precipitation bin 15 from bottom.
Wherein more preferably, multiple bin is formed by multiple points of storehouse baffle for separatings.The volume ratio of aerobic bin and anoxic bin is 1:1.Point storehouse dividing plate was provided with the mouth of a river, and each bin passed through the mouth of a river and is connected, and series connection is formed and makes flow cavitation result be the passage of baffling state.Preferably, current become vertical folding fluidised form to flow.
Wherein more preferably, in the first aerobic bin 13 of aerobic bin 11, first anoxic bin 12, second and the second aerobic bin 14, micro-pore aeration parts are provided with, for controlling the aeration situation of each bin.Wherein, the concentration of aerobic bin dissolved oxygen is preferably greater than 1-2mg/L, and the concentration of anoxic bin dissolved oxygen is preferably about 0.5mg/L.
Wherein more preferably, in the first aerobic bin 13 of aerobic bin 11, first anoxic bin 12, second and the second aerobic bin 14, be also filled with Water warfare filler, be preferably microbe stuffing.The apposition growth that microbe stuffing is microorganism provides effective carrier, thus increases effective contact area of sewage and microorganism, makes the microbial film of microbe stuffing surface attachment carry out biopurification to sewage.The cumulative volume of microbe stuffing accounts for the 50%-60% of device useful volume.
Microorganism is preferably nitrobacteria and denitrifying bacterium.Nitrobacteria issues raw nitration reaction in aerobic situation, is nitrate or nitrite by the mineralized nitrogen in sewage; There is anti-nitration reaction when anoxic in denitrifying bacterium, by the nitrate in sewage or nitrate reductase, generates gaseous nitrogen, thus realize the object of sewage water denitrification.Certainly can understand, the present invention is not limited only to this, and the present invention still can also can be filtered, be purified waste water by other physics fillers or chemical filler.
Wherein more preferably, the mounting means of waste disposal plant can adopt buried, half buried and ground type.
The integrated sewage treating apparatus that the present embodiment provides, the mode adopting multi-stage anaerobic bin/aerobic bin series connection to use, makes sewage, in device inside, the reaction of a series of nitrification and denitrification occur, finally makes the effective denitrogenation of sewage.Compared to existing A/O waste disposal plant, the present embodiment, without the need to adding extra power-equipment, simplifies the process that equipment runs debugging, reduces the difficulty of later maintenance, reduce cost.It also avoid because the waste disposal plant that causes of the power-equipment fault situation that cannot operate simultaneously.
Embodiment 2
As in Figure 2-4, the integrated sewage treating apparatus that the present embodiment provides comprises: housing 2, water inlet 28, water outlet 29, Water warfare filler, point storehouse dividing plate, micro-pore aeration parts and point storehouse water replanishing device.
Housing 2 is preferably set to cylindrical shape, and the two ends of the housing 2 of described cylindrical shape are convex surface outwardly, and the housing 2 of described cylindrical shape is horizontally disposed with, and described housing 2 preferably adopts glass steel material.The outer wall of housing 2 is preferably also provided with inspection port 215, for observing device inside sewage disposition and carry out internal maintenance of equipment.
Housing 2 inside is provided with first step Sewage water treatment device and the second stage waste disposal plant of series connection.
Wherein, first step waste disposal plant comprises the first aerobic bin 21 and the first anoxic bin 23 of series connection; Second stage waste disposal plant comprises the second aerobic bin 24 and the second anoxic bin 25 of series connection.
Preferably, between the first aerobic bin 21 and the first anoxic bin 23, the 3rd aerobic bin 22 is also in series with, for promoting nitrification further; The 4th aerobic bin 26 is also in series with after the second anoxic bin 25; Precipitation bin 27 is also in series with after the 4th aerobic bin 26.
It should be noted that, the 4th aerobic bin 26 is bin for subsequent use, for except ammonia nitrogen residual in anhydrating.Due to before in denitrification, not only existing nitrate transformation is the alienation anti-nitration reaction of nitrogen, also there is assimilation denitrification.Assimilate the cell that denitrification is used for synthesizing new microbe, can be decomposed again product ammonification under aerobic condition.The ammonia nitrogen that reduction generates still exists in water, and ammonia nitrogen concentration is rebounded.Therefore, the 4th aerobic bin 26 is set after the second anoxic bin 25, avoids assimilating denitrification and ammonia nitrogen concentration is rebounded the generation of this situation, ensure that total nitrogen TN (TotalNitrogen) concentration stabilize is up to standard.
Preferably, housing 2 inside is also provided with a point storehouse water replanishing device.At the first aerobic bin 21, first anoxic bin 23 and the second anoxic bin 25, be respectively equipped with the first water-in 212, second water-in 213 and the 3rd water-in 214.Above-mentioned three water-ins are all connected with water inlet 28.
Wherein preferably, point storehouse water replanishing device control sewage is intake from above-mentioned three water-ins simultaneously.The flooding quantity of the first water-in 212, second water-in 213 and the 3rd water-in 214 accounts for 70%-85%, 10%-20%, 5%-10% of the inner sewage total amount of housing 2 respectively.
It should be noted that, the object of supplementing sewage to the first anoxic bin 23 and the second anoxic bin 25 is in order to supplementary carbon source.It is that electron donor is to carry out denitrification with carbon source that denitrifying bacterium in anoxic bin needs main.But sewage is after processing through the first aerobic bin 21 and the 3rd aerobic bin 22, carbon source is almost consumed totally.If do not have supplementing of carbon source, the denitrification in anoxic bin is by suppressed.Carbon source can be supplemented by water inlet sewage, therefore can supplement sewage to anoxic bin, promote denitrification, reduces water outlet total nitrogen TN level.
In addition, precipitation bin 27 is preferably inclined-plate clarifying basin or tube settler, and the angle of swash plate or inclined tube and settling tank inclined bottom surface is preferably 45 degree.
Other features in the present embodiment are identical with the feature of the first embodiment, do not repeat them here.
The waste disposal plant that the present embodiment provides, to be connected with multiple anoxic bin by multiple aerobic bin and is formed.Wherein, the first aerobic bin 21 and the 3rd aerobic bin 22 form second nitrification structure, make the nitration reaction of sewage more abundant.Meanwhile, supplement certain sewage at the first anoxic bin 23 and the second anoxic bin 25, for two anoxic bins provide the carbon source required for denitrification, ensure that fully carrying out of denitrification.Simultaneously being arranged in series of aerobic bin and anoxic bin, overcomes the lifting of point organism that storehouse moisturizing brings and ammonia nitrogen level, ensure that outlet water organic substance concentration and total nitrogen TN concentration.In addition, the 4th aerobic bin 26 is aerobic bin, effectively avoids the situation that assimilation denitrification may produce ammonia nitrogen concentration bounce-back, ensures effluent characteristics.Finally, be provided with swash plate or inclined tube in precipitation bin 27, add the effect of mud-water separation, enhance the effect of precipitation, decrease the sediment concentration of water outlet.
Embodiment 3
As seen in figs. 5-6, the integrated sewage treating apparatus that the present embodiment provides comprises: housing 3, water inlet 38, water outlet 39, Water warfare filler, point storehouse dividing plate, micro-pore aeration parts.
Housing 3 is preferably the cube structure of carbon steel material.
Preferably, multiple points of storehouse dividing plate transverse and longitudinals are crisscross arranged inner at housing 3, housing 3 are divided internally into the identical bin of multiple volume.By being arranged on point storehouse dividing plate crossing mouth of a river serial communication between each bin, being formed and making flow cavitation result be the passage of vertical folding fluidised form.
Other features in the present embodiment are identical with the second embodiment, do not repeat them here.
It should be noted that, the water outlet 39 in the present embodiment can also be arranged on the sidewall adjacent with water inlet 38.Correspondingly, the bin be connected with water outlet 39 is for precipitate bin.Sewage enters from water inlet 38, and each bin flowing through series connection mutually successively carries out denitrogenation processing, finally enters precipitation bin 37 and precipitates, discharged after precipitation by water outlet 39.
Embodiment 4
The sewage water treatment method of employing integrated sewage treating apparatus provided by the invention, comprising:
Water warfare filler is filled in device inside;
The sewage that order enters enclosure interior flows through the multi-stage sewage treatment device of mutually connecting successively with baffling state, carry out repeatedly denitrogenation processing;
In first step waste disposal plant, the first aerobic bin is made to connect with the first anoxic bin;
In the waste disposal plant of the second stage, the second aerobic bin is made to connect with the second anoxic bin.
Wherein, preferably, sewage is that upper and lower baffling state passes through multi-stage sewage treatment device successively.
The concentration of aerobic bin dissolved oxygen is preferably set to be greater than 1-2mg/L, and the concentration of anoxic bin dissolved oxygen is about 0.5mg/L.
In addition, Water warfare filler is preferably microbe stuffing, comprises nitrobacteria and denitrifying bacterium.Wherein, sewage is nitrated by nitrobacteria in aerobic bin, is nitrate by mineralized nitrogen; Nitrate transformation by denitrifying bacterium denitrification, is gaseous nitrogen by sewage in anoxic bin.The cumulative volume of filling microbe stuffing accounts for the 50%-60% of first step waste disposal plant and second stage waste disposal plant useful volume respectively.
Certainly can understand, the present invention is not limited only to this, and the present invention still can also can be filtered, be purified waste water by other physics fillers or chemical filler.
Preferably, sewage is in series with again the 3rd aerobic bin, carries out second nitrification process there is nitration reaction in the first aerobic bin after.It is more abundant that the combination of twice nitration treatment makes the nitration reaction between sewage and microorganism carry out; Sewage is after secondary denitrogenation processing, then the 4th aerobic bin of connecting carries out an aerobic treatment, removes the ammonia nitrogen of the remnants be not removed, and prevents the ammonia nitrogen concentration bounce-back caused due to assimilation denitrification from rising, is lifted out quality.
Preferably, while sewage enters housing from water-in, supplement certain sewage to the first anoxic bin and the second anoxic storehouse simultaneously.Carbon source in sewage, as the electron donor of denitrifying bacterium, prevents because carbon source deficiency causes denitrification suppressed.Facilitate the generation of denitrification, reduce the level of water outlet total nitrogen TN.
Wherein, the flooding quantity in the first aerobic bin, the first anoxic bin and the second anoxic storehouse accounts for 70%-85%, 10%-20%, 5%-10% of enclosure interior sewage total amount respectively.
Preferably, make the sewage after denitrogenation processing enter precipitation bin precipitation, the sewage after precipitation is discharged along water outlet.Preferably, adopt the method for tube settling or sloping plate deposition to be separated by the silt in sewage, strengthen the effect of precipitation.
In addition, arranging the time that sewage stops in device is preferably 12 hours, and the mounting means of device preferably adopts buried, half buried and ground type.
The sewage water treatment method that the present embodiment provides, adopt multistage nitrated/denitrification series connection mode, achieve effective denitrogenation of sewage.Compared to the sewage water treatment method of existing employing A/O technique, the present embodiment does not need to add internal reflux, makes that sewage water treatment method becomes simply controlled, later maintenance is comparatively easy, and input cost this is few, be easy to realize.In addition, supplement a certain amount of sewage in the denitrification stage, for denitrifying bacterium provides carbon source, further promote denitrification, reduce water outlet nitrogen content.Meanwhile, sewage carries out one-level aerobic treatment before precipitation, avoids the ammonia nitrogen concentration bounce-back rising because assimilation denitrification causes, reduces water outlet total nitrogen TN concentration, ensure effluent characteristics.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. an integrated sewage treating apparatus, is characterized in that, comprising:
Housing, arranges at least two-stage waste disposal plant of series connection in described housing;
Wherein, first step waste disposal plant comprises the first aerobic bin and the first anoxic bin of series connection;
Second stage waste disposal plant comprises the second aerobic bin and the second anoxic bin of series connection;
Described first aerobic bin, the first anoxic bin, the second aerobic bin and the second anoxic bin passed through the passage that flow cavitation result is baffling state by mouth of a river series connection formation;
Described housing sets into the mouth of a river, water outlet, the position of described water inlet is not less than the position of described water outlet; Water warfare filler is filled with in described first step waste disposal plant with in the waste disposal plant of the second stage.
2. waste disposal plant as claimed in claim 1, it is characterized in that, described Water warfare filler is microbe stuffing, and cumulative volume accounts for the 50%-60% of described first step waste disposal plant and the inner useful volume of second stage waste disposal plant respectively.
3. waste disposal plant as claimed in claim 1, is characterized in that, also comprise a point storehouse dividing plate;
Described point of storehouse dividing plate, is arranged on described enclosure interior, and described aerobic bin and anoxic bin are opened by described point of storehouse baffle for separating.
4. waste disposal plant as claimed in claim 1, is characterized in that, also comprise micro-pore aeration parts;
Described micro-pore aeration parts, are separately positioned in described first aerobic bin, the first anoxic bin, the second aerobic bin and the second anoxic bin, for controlling aeration situation.
5. waste disposal plant as claimed in claim 1, is characterized in that, also comprise: described waste disposal plant also comprises a point storehouse water replanishing device,
Described first aerobic bin is provided with the first water-in;
Described first anoxic bin is provided with the second water-in;
Described second anoxic bin is provided with the 3rd water-in;
Described first water-in, the second water-in and the 3rd water-in are connected with described water inlet respectively;
Described point of storehouse water replanishing device enters from described first water-in, the second water-in and the 3rd water-in for controlling sewage simultaneously.
6. waste disposal plant as claimed in claim 5, is characterized in that,
The flooding quantity of described first water-in, the second water-in and the 3rd water-in accounts for 70%-85%, 10%-20%, 5%-10% of described enclosure interior sewage total amount respectively.
7. waste disposal plant as claimed in claim 1, it is characterized in that, be in series with precipitation bin after the waste disposal plant of the second stage, described settling banker chamber interior is provided with swash plate or inclined tube.
8. waste disposal plant as claimed in claim 7, is characterized in that, also comprise:
The 3rd aerobic bin is in series with between described first aerobic bin and described first anoxic bin;
The 4th aerobic bin is in series with between described second stage waste disposal plant and precipitation bin.
9. waste disposal plant as claimed in claim 1, it is characterized in that, described device is the cylindrical structure that cube structure or two ends are convex surface.
10. use a sewage water treatment method for waste disposal plant as described in claim 1-9 any one, it is characterized in that, comprising:
Make sewage enter described enclosure interior along described water inlet, carry out purifying treatment by the multi-stage sewage treatment device of described series connection successively with baffling state;
Wherein, the time that control sewage stops in described housing is 12 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591516.2A CN105198083A (en) | 2015-09-16 | 2015-09-16 | Integrated sewage treatment device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510591516.2A CN105198083A (en) | 2015-09-16 | 2015-09-16 | Integrated sewage treatment device and method |
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| CN105198083A true CN105198083A (en) | 2015-12-30 |
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| CN201510591516.2A Pending CN105198083A (en) | 2015-09-16 | 2015-09-16 | Integrated sewage treatment device and method |
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| CN106348445A (en) * | 2016-11-10 | 2017-01-25 | 济宁金水科技有限公司 | Multilevel aerobic and anaerobic sewage treatment device and method |
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| CN110015807A (en) * | 2019-03-18 | 2019-07-16 | 沈阳建筑大学 | A kind of strengthened denitrification reactor and its deep denitrification method for advanced nitrogen |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106348445A (en) * | 2016-11-10 | 2017-01-25 | 济宁金水科技有限公司 | Multilevel aerobic and anaerobic sewage treatment device and method |
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| CN110015807A (en) * | 2019-03-18 | 2019-07-16 | 沈阳建筑大学 | A kind of strengthened denitrification reactor and its deep denitrification method for advanced nitrogen |
| CN110015807B (en) * | 2019-03-18 | 2022-11-15 | 广东东日环保股份有限公司 | Enhanced denitrification reactor for deep denitrification and deep denitrification method thereof |
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