CN205152007U - Energy -saving high -efficient nitrogen and phosphorus removal CASS sewage treatment system - Google Patents
Energy -saving high -efficient nitrogen and phosphorus removal CASS sewage treatment system Download PDFInfo
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- CN205152007U CN205152007U CN201520930957.6U CN201520930957U CN205152007U CN 205152007 U CN205152007 U CN 205152007U CN 201520930957 U CN201520930957 U CN 201520930957U CN 205152007 U CN205152007 U CN 205152007U
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Abstract
The utility model discloses an energy -saving high -efficient nitrogen and phosphorus removal CASS sewage treatment system, its pre -reaction district is connected with the inlet tube, and pre -reaction district and oxygen deficiency stirring district communicate through first water distribution wall, and oxygen deficiency stirring district and dominant reaction district communicate through second water distribution wall, it is linked together through return sludge pipe and pre -reaction district to be equipped with the return sludge pump in the dominant reaction district, it is linked together through mixed liquid recycle pipe and oxygen deficiency stirring district to be equipped with mixed liquid return pump in the dominant reaction district, the dominant reaction is equipped with filler, aeration equipment and strains the hydrophone in the district, strains the hydrophone and is connected with the outlet pipe, it pushes away a class mixer to be equipped with low -speed in the oxygen deficiency stirring district. The utility model discloses the water distribution is even, the energy can be saved, and nitrogen and phosphorus removal ability reinforce, it is automatic competent.
Description
Technical field
The utility model relates to technical field of sewage, is specifically related to a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems.
Background technology
Circulating type active sludge technology (Cyclicactivatedsludgetechnology, CASS) grow up in SBR technique, it adds a biological selecting area in SBR pond, realizes continuum micromeehanics, intermittent drainage, obtains larger application in medium and small sewage work.CASS reaction tank is divided into biological selecting area and main reaction region two portions along water (flow) direction, and the former is that cotton-shaped bacterium creates suitable growth conditions, and provides place for the release of denitrification and polyP bacteria phosphorus, and the latter is the main place finally removing organic substrates.
Cyclic activated sludge system has strong shock resistance, floor space is little, investment is lower, excess sludge production is low, not easily the advantage such as sludge bulking occurs, but also there is the technical problems such as water distribution inequality, glue nitrogen phosphor-removing effect be not good at present.
Utility model content
The purpose of this utility model is the shortcoming and defect in order to overcome prior art, and provide water distribution even, save the energy, denitrogenation dephosphorizing ability is strong, a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems that automatization level is high.
An energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems, comprise set gradually in pond body and pond body pre-reaction zone, anoxia stirring district, main reaction region; Described pre-reaction zone is connected with water inlet pipe, and pre-reaction zone is communicated with by the first cloth waterwall with anoxia stirring district, and anoxia stirring district is communicated with by the second cloth waterwall with main reaction region; The bottom of described first cloth waterwall is evenly provided with the first water distributing pore in length and breadth, and the top of the second cloth waterwall is evenly provided with the second water distributing pore in length and breadth; Be provided with sludge reflux pump in described main reaction region to be connected with pre-reaction zone by mud return line; Be provided with mixed-liquor return pump in main reaction region to be connected with anoxia stirring district by mixed-liquor return pipe; Be provided with filler, aerating apparatus and water decanter in main reaction region, described water decanter is connected with rising pipe; Low speed pushing flow mixer is provided with in described anoxia stirring district.
Preferably, described first water distributing pore and the second water distributing pore diameter are 10-15cm, and spacing is 20-30cm in length and breadth, and surface is provided with screen cloth.
Preferably, intensive large surface aeration mode selected by described aerating apparatus, and aerated conduit is provided with several aeration heads.
Preferably, described mud return line and mixed-liquor return pipe all adopt stripping reflux mode.
Preferably, described filler is the spherical gauze packing of PVC material.
Principle of work of the present utility model is as follows:
By outside lift pump, water inlet is promoted to pre-reaction zone, in pre-reaction zone, realize dominant bacteria screening, polyP bacteria release phosphorus, remove suspended substance and easy degraded solubility organic substrates fast simultaneously, then enter anoxia stirring district and carry out denitrification, carry out the hydrolysis of part hardly degraded organic substance simultaneously, reacted laggard enter organic matter degradation is carried out in main reaction region, nitration denitrification, polyP bacteria inhale the process such as phosphorus, precipitation, water outlet is discharged through water decanter.Wherein, at aeration phase by the mixed-liquor return of main reaction region to anoxia stirring district, at precipitate phase by the sludge reflux of main reaction region to pre-reaction zone, drain into sludge dewatering workshop outside excess sludge.
The beneficial effects of the utility model are:
1. water distribution homogenizing, the utility model folding fan-shaped cloth waterwall increases waste water face, decreases flow resistance, by the water distributing pore evenly laid in length and breadth, can realize sewage in pond and be uniformly distributed;
2. water distribution uniformity makes aeration phase muddy water fully mix, in addition the bubble cutting action of filler, greatly strengthen the aeration effect of system, decreases aeration time, thus save the consumption of the energy;
3., by setting up anoxia stirring district and changing sludge reflux scheme, strengthen denitrification further and release phosphorus process, folding fan-shaped water distribution is combined with stripping reflux mode, makes microorganism and the abundant contact reacts of sewage, can significantly improve the denitrogenation dephosphorizing ability of system;
4. aeration phase, by the nitrated mixed-liquor return of main reaction region to anoxia stirring district, fully mixes with sewage, enhances system denitrifying capacity, thus improve Nitrogen removal effect under the overbottom pressure effect of low speed pushing flow agitator and stripping reflux device;
5. precipitate phase, by the sludge reflux of main reaction region to pre-reaction zone, mud air lift reflux is utilized with the overbottom pressure of outside lift pump, returned sluge fully to be mixed with sewage, under anaerobic polyP bacteria is fully released phosphorus and is absorbed organism, for the excess ingestion of follow-up main reaction region phosphorus creates conditions;
The spherical gauze packing of 6.PVC material, can realize effective cutting of bubble, improves aeration efficiency, enhances effectively biological fixing simultaneously, improves biochemical reaction effect;
7. mud return line and mixed-liquor return pipe all adopt stripping reflux mode, control return flow, time, reach automatic returning function by Automated condtrol inlet period and intensity, and improve the automatization level of system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A sectional view of the present utility model;
Fig. 3 is A-A sectional view of the present utility model.
In accompanying drawing: 1, Chi Ti, 11, pre-reaction zone, 111, water inlet pipe, 12, anoxia stirring district, 121, the first cloth waterwall, the 1211, first water distributing pore, the 122, second cloth waterwall, the 1221, second water distributing pore, 123, low speed pushing flow mixer, 13, main reaction region, 131, filler, 132, water decanter, 133, rising pipe, 21, mud return line, 211, sludge reflux pump, 22, mixed-liquor return pipe, 221, mixed-liquor return pump, 23, excess sludge discharge pipe, 31, aerating apparatus, 32, screen cloth.
Embodiment
Below in conjunction with embodiment, embodiment of the present utility model is described in further detail:
As shown in Figure 1, a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems, comprise set gradually in pond body 1 and pond body 1 pre-reaction zone 11, anoxia stirring district 12, main reaction region 13; Pre-reaction zone 11 is connected with water inlet pipe 111, and pre-reaction zone 11 is communicated with by the first cloth waterwall 121 with anoxia stirring district 12, and anoxia stirring district 12 is communicated with by the second cloth waterwall 122 with main reaction region 13; First cloth waterwall 121 and the second cloth waterwall 122 are folding fan-shaped cloth waterwall, the first water distributing pore 1211 is evenly provided with in length and breadth in the bottom of the first cloth waterwall 121, the second water distributing pore 1221 is evenly provided with in length and breadth on the top of the second cloth waterwall 122, water distributing pore diameter is 10cm, spacing is 20cm in length and breadth, and surface is provided with screen cloth 32.
Be provided with sludge reflux pump 211 in main reaction region 13 to be connected with pre-reaction zone 11 by mud return line 21, be provided with mixed-liquor return pump 221 in main reaction region 13 and be connected with anoxia stirring district 12 by mixed-liquor return pipe 22; Mud return line 21 and mixed-liquor return pipe 22 all adopt stripping reflux mode.
Be provided with filler 131, aerating apparatus 31 and water decanter 132 in main reaction region 13, water decanter 132 is connected with rising pipe 133; Low speed pushing flow mixer 123 is provided with in anoxia stirring district 12; Intensive large surface aeration mode selected by aerating apparatus 31, and aerated conduit is provided with several aeration heads; Filler 131 is the spherical gauze packing of PVC material.
The above is only preferred implementation of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as within protection domain of the present utility model.
Claims (7)
1. an energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems, is characterized in that, comprise set gradually in pond body and pond body pre-reaction zone, anoxia stirring district, main reaction region; Described pre-reaction zone is connected with water inlet pipe, and pre-reaction zone is communicated with by the first cloth waterwall with anoxia stirring district, and anoxia stirring district is communicated with by the second cloth waterwall with main reaction region; The bottom of described first cloth waterwall is evenly provided with the first water distributing pore in length and breadth, and the top of the second cloth waterwall is evenly provided with the second water distributing pore in length and breadth; Be provided with sludge reflux pump in described main reaction region to be connected with pre-reaction zone by mud return line; Be provided with mixed-liquor return pump in main reaction region to be connected with anoxia stirring district by mixed-liquor return pipe; Be provided with filler, aerating apparatus and water decanter in main reaction region, described water decanter is connected with rising pipe; Low speed pushing flow mixer is provided with in described anoxia stirring district.
2. a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems according to claim 1, it is characterized in that, described first cloth waterwall and the second cloth waterwall are folding fan-shaped cloth waterwall.
3. a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems according to claim 1, it is characterized in that, described first water distributing pore and the second water distributing pore diameter are 10-15cm, and spacing is 20-30cm in length and breadth.
4., according to the arbitrary described a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems of claim 1-3, it is characterized in that, described first water distributing pore and the second water distributing pore surface are provided with screen cloth.
5. a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems according to claim 1, is characterized in that, intensive large surface aeration mode selected by described aerating apparatus, and aerated conduit is provided with several aeration heads.
6. a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems according to claim 1, it is characterized in that, described mud return line and mixed-liquor return pipe all adopt stripping reflux mode.
7. a kind of energy-saving high-efficient denitrification and dephosphorization CASS Sewage treatment systems according to claim 1, it is characterized in that, described filler is the spherical gauze packing of PVC material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520930957.6U CN205152007U (en) | 2015-11-20 | 2015-11-20 | Energy -saving high -efficient nitrogen and phosphorus removal CASS sewage treatment system |
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| CN201520930957.6U CN205152007U (en) | 2015-11-20 | 2015-11-20 | Energy -saving high -efficient nitrogen and phosphorus removal CASS sewage treatment system |
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| CN205152007U true CN205152007U (en) | 2016-04-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396100A (en) * | 2016-10-10 | 2017-02-15 | 中国人民解放军后勤工程学院 | Strengthened nitrogen and phosphorus removal CASS flow-separating biochemical device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106396100A (en) * | 2016-10-10 | 2017-02-15 | 中国人民解放军后勤工程学院 | Strengthened nitrogen and phosphorus removal CASS flow-separating biochemical device |
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Address after: 410000 No. 8 Aviation Road, Wangcheng Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: HUNAN JINLV ENVIRONMENTAL PROTECTION CO., LTD. Address before: 410000 Fourth Floor of Management Committee Office Building of Longping High-tech Park, Furong District, Changsha City, Hunan Province Patentee before: HUNAN JINLV ENVIRONMENTAL PROTECTION CO., LTD. |