CN103482764B - A kind of hydrolysis acidification pool based on granule sludge enhanced flocculation technique - Google Patents
A kind of hydrolysis acidification pool based on granule sludge enhanced flocculation technique Download PDFInfo
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- CN103482764B CN103482764B CN201310477934.XA CN201310477934A CN103482764B CN 103482764 B CN103482764 B CN 103482764B CN 201310477934 A CN201310477934 A CN 201310477934A CN 103482764 B CN103482764 B CN 103482764B
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- flocculating chamber
- mud
- hydrolysis acidification
- acidification pool
- water separation
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Abstract
The invention discloses a kind of hydrolysis acidification pool based on granule sludge enhanced flocculation technique, its reactor is formed primarily of two-stage flocculating chamber and a mud-water separation room, the former water sprayed at a high speed forms vacuum in device, suck the partial reflux granule sludge after mud-water separation, former water and granule sludge flow through two-stage flocculating chamber contact flocculation, wherein one-level flocculating chamber is provided with the effect of web plate enhanced flocculation, and the sewage after secondary flocculation is by the further intensive treatment of packing layer.The present invention is without the need to stirring and refluxing unit, and energy consumption is low, and returned sluge activity is high, biomass is large, mud-water separation is effective, and flocculation efficiency is high.
Description
Technical field
The present invention relates to sewage treatment area, be specifically related to a kind of follow-on hydrolysis acidification pool based on granule sludge enhanced flocculation technique.
Background technology
Acidication treatment process is a kind of method between aerobic and anaerobic treatment method, and other process combination can reduce processing cost and improves processing efficiency.Acidication technique is different from the hydrolysis acid-producing bacteria speed of growth according to methanogen, anaerobic treatment is controlled in shorter anaerobic treatment first and second stage in reaction times, namely be dissolved organic matter by insoluble hydrolysis of organic matter under a large amount of hydrolytic bacteria, the effect of acidifying bacterium, the macromolecular substance of difficult for biological degradation is converted into the process of the small-molecule substance of readily biodegradable, thus improve the biodegradability of waste water, for subsequent disposal establishes good basis.
Traditional acidication technique has activated sludge process and the large class of biomembrance process two.Mud method comprises upflow sludge blanket device and stirring-type treatment unit.The power that the former is risen by sewage holds up Sludge Bed, and carry out adsorption-decomposition function COD by maintaining high density anaerobe and active sludge in pond, but there is the restriction of water distribution inequality in this device, if effluent flow rate control is improper, easily cause at the bottom of biochemical sludge sedimentation basin, thus make the deleterious of acidication.The latter avoids sludgd deposition problem by arranging whipping appts in pond, but its energy consumption is comparatively large, stirredly anaerobic sludge can be caused again to run off by force, while inconvenient maintenance.And, the granule sludge content formed in traditional hydrolysis acidification pool is less, when in sewage, difficult degradation dissolved organic matter content is higher, mud method technique conventional precipitation is separated and does not reach required sludge concentration, even if reach concentration, mud is also mainly from the inorganic particle suspended substance in water, and therefore sludge activity is lower.
Summary of the invention
Technical problem to be solved by this invention is: provide that the granule sludge content in a kind of pond is many, activity is high, biomass is large, settling property good, and without the need to stirring and the hydrolysis acidification pool of granule sludge enhanced flocculation technique of refluxing unit.
For solving the problems of the technologies described above, technical scheme of the present invention is: provide a kind of hydrolysis acidification pool based on granule sludge enhanced flocculation technique, this hydrolysis acidification pool comprises water inlet pipe, nozzle, trunnion, hydraucone, web plate, baffle plate, rising pipe, shore pipe, one-level flocculating chamber, secondary flocculating chamber, mud-water separation room, braiding channel, described nozzle one end connects water inlet pipe, and the other end stretches into bell-mouthed bottom; The bottom of described trunnion is connected with bell-mouthed top, and top is connected with the bottom of one-level flocculating chamber; The top of described one-level flocculating chamber is communicated with secondary flocculating chamber, is provided with three grades of web plates in this one-level flocculating chamber; The bottom of described secondary flocculating chamber is provided with baffle plate, and be communicated with mud-water separation room by baffle plate, be provided with packing layer between this periphery, secondary flocculating chamber and hydrolysis acidification pool inwall, be provided with the braiding channel be communicated with it above described packing layer, described braiding channel side has rising pipe; The bottom of described mud-water separation room is provided with shore pipe.
Further, described one-level flocculating chamber is the taper barrel structure that increases gradually of diameter from bottom to top.
Further, described secondary flocculating chamber is cylinder barrel shaped structure.
Further, the bottom of described mud-water separation room is conical structure, and its inclined-plane and horizontal plane angle are 40 °-45 °.
Further, the flow velocity of described nozzle ejection is 6-9m/s.
Further, the three grades of web plates be arranged on described in one-level flocculating chamber reduce successively by order mesh-density from top to bottom.
Further, described baffle plate is taper barrel structure, forms sludge reflux and stitch between the lower end of this baffle plate and the bottom of mud-water separation room, and raw water flow is 1:1 to 1:2 with the ratio of sludge back flow quantity.
Further, described packing layer is by the support of elastic filler, fixing filler or soft-filler, being configured to of fixing filler.
Further, described braiding channel is annular.
Have employed technique scheme, beneficial effect of the present invention is: compared with prior art, and the hydrolysis acidification pool based on granule sludge enhanced flocculation technique of the present invention has the following advantages:
1, sprayed into by the high speed of former water and form vacuum and suck returned sluge bottom mud-water separation room continuously, avoid sludgd deposition, simultaneously without the need to whipping appts, without the need to reflux pump, energy efficient;
2, the mud small part after mud-water separation is regularly got rid of as excess sludge, and major part is as returned sluge recycle.When this plant running is good, the granule sludge formed due to the self-flocculation of microorganism cells, has the advantages such as content is many, activity is high, biomass is large, settling property is good compared with the granule sludge in common hydrolysis acidification pool;
3, backflow granule sludge and former water pollutant particle carry out contact flocculation, when in former water, small flco or de-steady particle contact with returned sluge, be refluxed granule sludge layer to be retained down, the two particle diameter difference is comparatively large, and backflow granule sludge serves the effect of strengthening aquatic particle flocculation;
4, by arranging the different web plate of three grades of density in one-level flocculating chamber, increasing current turbulence, promoting particle collision, and then form large-size particles, strengthening reaction zone biological treatment efficiency.
5, the filler in pond easily makes microorganism in its surface attachment, fixes, and significantly increases microorganism total amount, ensures that enough sludge concentrations participate in biochemical degradation process, improves the organic ability of microbiological deterioration.The guarantor's mud forming the good granule sludge of settling property is played a good role effect simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Wherein: 1-water inlet pipe, 2-nozzle, 3-trunnion, 4-hydraucone, 5-web plate, 6-baffle plate, 7-rising pipe, 8-shore pipe, 9-one-level flocculating chamber, 10-secondary flocculating chamber, 11-mud-water separation room, 12-braiding channel, 13-packing layer.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1, the present invention preferably comprises water inlet pipe 1, nozzle 2, trunnion 3, hydraucone 4, web plate 5, baffle plate 6, rising pipe 7, shore pipe 8, one-level flocculating chamber 9, secondary flocculating chamber 10, mud-water separation room 11, braiding channel 12 based on the hydrolysis acidification pool of granule sludge enhanced flocculation technique, described nozzle 2 one end connects water inlet pipe 1, and the other end stretches into the bottom of hydraucone 4; The bottom of described trunnion 3 is connected with the top of hydraucone 4, and top is connected with the bottom of one-level flocculating chamber 9; The top of described one-level flocculating chamber 9 is communicated with secondary flocculating chamber 10, is provided with three grades of web plates 5 in this one-level flocculating chamber 9; The bottom of described secondary flocculating chamber 10 is provided with baffle plate 6, and be communicated with mud-water separation room 11 by baffle plate 6, packing layer 13 is provided with between this periphery, secondary flocculating chamber 10 and hydrolysis acidification pool inwall, be provided with the braiding channel 12 be communicated with it above described packing layer 13, described braiding channel 12 side has rising pipe 7; The bottom of described mud-water separation room 11 is provided with shore pipe 8.
In a preferred embodiment of the invention, described one-level flocculating chamber 9 is the taper barrel structure that increases gradually of diameter from bottom to top.
In a preferred embodiment of the invention, described secondary flocculating chamber 10 is cylinder barrel shaped structure.
In a preferred embodiment of the invention, the bottom of described mud-water separation room 11 is conical structure, and its inclined-plane and horizontal plane angle are 40 °-45 °, is preferably 45 °.Bottom surface, mud-water separation room is set to inclined-plane and is convenient to the circulation of returned sluge precipitation, avoid the formation of dead angle simultaneously.
In a preferred embodiment of the invention, the flow velocity that described nozzle 2 sprays is 6-9m/s.Former water is sprayed into trunnion 3 at a high speed by nozzle 2, will form vacuum, sucked by returned sluge near hydraucone 4.
In a preferred embodiment of the invention, the three grades of web plates 5 be arranged on described in one-level flocculating chamber 9 reduce successively by order mesh-density from top to bottom.Grid is arranged three grades that density is different, be conducive to particle collision and form macrobead.
In a preferred embodiment of the invention, described baffle plate 6 is in taper barrel structure, and form sludge reflux between the lower end of this baffle plate 6 and the bottom of mud-water separation room 11 and stitch, raw water flow is 1:1 to 1:2 with the ratio of sludge back flow quantity.
In a preferred embodiment of the invention, described packing layer 13 is by the support of elastic filler, fixing filler or soft-filler, being configured to of fixing filler.Sewage after secondary flocculation is by packing layer 13 intensive treatment further.
In a preferred embodiment of the invention, described braiding channel 12 is annular.
Working process: during use, former water enters from water inlet pipe 1, first sprays into trunnion 3 at a high speed through nozzle 2, therefore near trunnion 3 bottom hydraucone 4, causes vacuum and suck returned sluge.Former water and returned sluge are admitted to one-level flocculating chamber 9 after acutely mixing in trunnion 3, and current, by web plate 5, in succession shrink, expand, and form whirlpool, and mud granule collision flows into secondary flocculating chamber 10 after growing up.The muddy water mixed solution flowed out from secondary flocculating chamber 10 carries out mud-water separation mud-water separation room 11, water after mud-water separation is through the packing layer 13 backward upper inflow braiding channel 12 of process further, drawn by rising pipe 7, mud small part after mud-water separation is regularly got rid of from shore pipe 8 as excess sludge, preferred half a year, once and major part was inhaled into trunnion 3 recycle as returned sluge.
As mentioned above, the present invention is without the need to stirring and refluxing unit, and energy consumption is low, and returned sluge activity is high, biomass is large, mud-water separation is effective, and flocculation efficiency is high.
The present invention is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, done all conversion, all drop within protection scope of the present invention.
Claims (4)
1. the hydrolysis acidification pool based on granule sludge enhanced flocculation technique, it is characterized in that: this hydrolysis acidification pool comprises water inlet pipe (1), nozzle (2), trunnion (3), hydraucone (4), three grades of web plates (5), baffle plate (6), rising pipe (7), shore pipe (8), one-level flocculating chamber (9), secondary flocculating chamber (10), mud-water separation room (11), braiding channel (12), described nozzle (2) one end connects water inlet pipe (1), and the other end stretches into hydraucone (4) bottom; The bottom of described trunnion (3) is connected with the top of hydraucone (4), and top is connected with the bottom of one-level flocculating chamber (9); The top of described one-level flocculating chamber (9) is communicated with secondary flocculating chamber (10), is provided with three grades of web plates (5) in this one-level flocculating chamber (9); The bottom of described secondary flocculating chamber (10) is provided with baffle plate (6), and be communicated with mud-water separation room (11) by baffle plate (6), packing layer (13) is provided with between this (10) periphery, secondary flocculating chamber and hydrolysis acidification pool inwall, described packing layer (13) top is provided with the braiding channel (12) be communicated with it, and described braiding channel (12) side has rising pipe (7); The bottom of described mud-water separation room (11) is provided with shore pipe (8); Described one-level flocculating chamber (9) is the taper barrel structure that increases gradually of diameter from bottom to top; The bottom of described mud-water separation room (11) is conical structure, and its inclined-plane and horizontal plane angle are 40 °-45 °; The flow velocity that described nozzle (2) sprays is 6-9m/s; The described three grades of web plates (5) be arranged in one-level flocculating chamber (9) reduce successively by order mesh-density from top to bottom; Described baffle plate (6) is in taper barrel structure, and form sludge reflux between the lower end of this baffle plate (6) and the bottom of mud-water separation room (11) and stitch, raw water flow is 1:1 to 1:2 with the ratio of sludge back flow quantity.
2. the hydrolysis acidification pool based on granule sludge enhanced flocculation technique according to claim 1, is characterized in that: described secondary flocculating chamber (10) is cylinder barrel shaped structure.
3. the hydrolysis acidification pool based on granule sludge enhanced flocculation technique according to claim 1 and 2, is characterized in that: described packing layer (13) is by the support of elastic filler, fixing filler or soft-filler, being configured to of fixing filler.
4. the hydrolysis acidification pool based on granule sludge enhanced flocculation technique according to claim 1 and 2, is characterized in that: described braiding channel (12) is annular.
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| CN107149798A (en) * | 2017-05-31 | 2017-09-12 | 常州江南环境工程有限公司 | Efficient hydrodynamic clarifies clarifier |
| CN109052809A (en) * | 2018-07-23 | 2018-12-21 | 华南理工大学 | A kind of method of enhanced coagulation processing coating waste water |
| CN109133495A (en) * | 2018-07-23 | 2019-01-04 | 华南理工大学 | A kind of carbonless paper coating wastewater treatment and circulation reuse method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113789A (en) * | 1998-07-20 | 2000-09-05 | Western Environmental Engineering Company | Pasteurization process |
| CN1721328A (en) * | 2005-05-31 | 2006-01-18 | 昆明理工大学 | Method and apparatus for preparing fumed nano oxide |
| CN1736879A (en) * | 2005-07-21 | 2006-02-22 | 华东理工大学 | Preparation method of gas phase nano titanium dioxide with average grain size |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113789A (en) * | 1998-07-20 | 2000-09-05 | Western Environmental Engineering Company | Pasteurization process |
| CN1721328A (en) * | 2005-05-31 | 2006-01-18 | 昆明理工大学 | Method and apparatus for preparing fumed nano oxide |
| CN1736879A (en) * | 2005-07-21 | 2006-02-22 | 华东理工大学 | Preparation method of gas phase nano titanium dioxide with average grain size |
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