CN105084672A - Sectional-water-inlet A/O (anoxic/oxic) composite sewage treatment plant and sewage treatment method - Google Patents
Sectional-water-inlet A/O (anoxic/oxic) composite sewage treatment plant and sewage treatment method Download PDFInfo
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- CN105084672A CN105084672A CN201510517619.4A CN201510517619A CN105084672A CN 105084672 A CN105084672 A CN 105084672A CN 201510517619 A CN201510517619 A CN 201510517619A CN 105084672 A CN105084672 A CN 105084672A
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Abstract
The invention relates to a sectional-water-inlet A/O (anoxic/oxic) composite sewage treatment plant and sewage treatment method. The traditional sectional-water-inlet A/O or MBBR (moving bed biofilm reactor) treatment technology adopted in the existing market mainly has the problem that the influent water distribution only is set and completed at one time during debugging and can not easily satisfy the sewage quality fluctuation condition, so the qualification rate of the influent water is low. The sewage treatment plant is composed of a precipitation tank (1), wherein the precipitation tank is communicated with an intelligent sectional water distribution device (2); the intelligent sectional water distribution device is communicated with an internal return tank (3); the internal return tank is communicated with a set of oxic tanks which are connected sequentially; the inside of each oxic tank is provided with an anaerobic activated sludge biofilm, a submersible stirrer and a lateral aeration perforated pipe; an anaerobic-bacterium-attached modified biological suspended filler is added into each oxic tank; and the oxic tank at the endmost end is communicated with an anaerobic tank (4). The plant and method are used for sewage treatment.
Description
technical field:
the present invention relates to a kind of subsection water inflow A/O composite sewage treatment equipment and sewage water treatment method, be specifically related to the waste disposal plant in a kind of project of upgrading and rebuilding being applied to newly-built sewage work and built sewage work.
background technology:
the subject matter of conventional segmented water inlet A/O or MBBR treatment technology is mainly adopted to be in the market: water inlet distribution is only once provided with in debugging, and be difficult to the situation of agreeing with sewage quality fluctuation, standard water discharge rate is low; Adopt single-activity sludge system, sludge system sludge yield is high, and second pond load is large, and floor space is large; Adopt single MBBR technique, filler dosing ratio is high, invests huge; Adopt the reflux type of traditional nitrification liquid and mud, energy consumption is higher; Under cold condition, processing efficiency obviously declines, and operation stability is poor.
summary of the invention:
the object of this invention is to provide a kind of subsection water inflow A/O composite sewage treatment equipment and sewage water treatment method.
above-mentioned object is realized by following technical scheme:
a kind of subsection water inflow A/O composite sewage treatment equipment, its composition comprises: settling tank, described settling tank communicates with automatic paragraphing water dispensing apparatus, described automatic paragraphing water dispensing apparatus returns to pond with inside and communicates, described inside returns the Aerobic Pond that Chi Yuyi group connects in turn and communicates, described Aerobic Pond inside has anaerobic activated sludge microbial film, diving mixer, side direction aeration perforated pipe, and its inside adds the modification biological floating stuffing of anerobe attachment, and the described Aerobic Pond being positioned at least significant end communicates with anaerobic pond.
described subsection water inflow A/O composite sewage treatment equipment, described settling tank comprises preliminary sedimentation tank, and described preliminary sedimentation tank communicates with settling pit, and described settling tank inside is provided with into water perforated pipe, and described settling tank connects shore pipe.
described subsection water inflow A/O composite sewage treatment equipment, between the joint flange of described settling tank and described Aerobic Pond, graticule mesh is installed, between joint flange between described Aerobic Pond, graticule mesh is installed, graticule mesh between the joint flange of described Aerobic Pond and described anaerobic pond.
described subsection water inflow A/O composite sewage treatment equipment, is characterized in that: described Piecewise Water Distribution device has rising pipe.
a sewage water treatment method for subsection water inflow A/O composite sewage treatment equipment that one of claim 1-4 is described, the method comprises the steps:
waste water, after the preliminary sedimentation tank of settling tank, settling pit carry out pre-treatment, enters Aerobic Pond, anaerobic pond successively, lays diving mixer in anaerobic pond, and adds the modification biological floating stuffing of applicable anerobe attachment; Add in Aerobic Pond and be easy to aerobic bacteria attachment modification biological floating stuffing, be conducive to the residence time increasing functional microorganism on the one hand, there is strengthening synchronous nitration and denitrification usefulness simultaneously, increase denitrification effect function;
the each influent flow distribution of Aerobic Pond segmental influent is undertaken by intelligent watering device, and coefficient is respectively 0.6,0.1,0.1,0.1,0.1, and partition ratio can adjust according to influent quality; Adding of filler is successively decreased step by step from anaerobic pond to Aerobic Pond, and the dosing ratio of filler is between 20%-40%; Because filler has mobility, so establish graticule mesh in the junction in each pond, intercept filler and flee to other ponds; And the easy deposited bottom of filler, so side direction aeration perforated pipe will be arranged, to prevent bottom filler deposition pond.
beneficial effect:
efficient coupling A/O technique of the present invention and MBBR technique, and segmental influent distribution technique, active sludge-microbial film cogeneration system, low-power consumption sludge/nitrification liquid technique of backflow are integrated in overall craft, and then enhanced system is to the adaptability of change of water quality, the operation stability of raising system under low-temperature condition, consolidation system synchronous nitration and denitrification usefulness, ensures organic matter removal ability and total nitrogen, the ammonia nitrogen removal efficiency of efficient stable under all weather conditions.
the present invention is on the basis of traditional A/O technique and MBBR technique, the two technology unit is carried out efficient coupling, and segmental influent technology and active sludge-microbial film cogeneration system are integrated in overall craft, build the compound MBBR wastewater processing technology of subsection water inflow A/O.
accompanying drawing illustrates:
accompanying drawing 1 structural representation of the present invention.
accompanying drawing 2 is vertical views of accompanying drawing 1.
accompanying drawing 3 is structural representations of Aerobic Pond one.
embodiment:
embodiment 1:
a kind of subsection water inflow A/O composite sewage treatment equipment, its composition comprises: settling tank 1, described settling tank communicates with automatic paragraphing water dispensing apparatus 2, described automatic paragraphing water dispensing apparatus and inside return to pond 3 and communicate, described inside returns the Aerobic Pond that Chi Yuyi group connects in turn and communicates, described Aerobic Pond inside has anaerobic activated sludge microbial film 15, diving mixer 16, side direction aeration perforated pipe 17, and its inside adds the modification biological floating stuffing of anerobe attachment, and the described Aerobic Pond being positioned at least significant end communicates with anaerobic pond 4.
described Aerobic Pond comprises: Aerobic Pond 1, Aerobic Pond 26, Aerobic Pond 37, Aerobic Pond 48, Aerobic Pond 59, the structure of these five Aerobic Ponds is identical.
embodiment 2:
subsection water inflow A according to embodiment 1/O composite sewage treatment equipment, described settling tank comprises preliminary sedimentation tank 10, described preliminary sedimentation tank communicates with settling pit 11, and described settling tank inside is provided with into water perforated pipe 12, and described settling tank connects shore pipe 13.
embodiment 3:
subsection water inflow A according to embodiment 2/O composite sewage treatment equipment, between the joint flange of described settling tank and described Aerobic Pond, graticule mesh is installed, between joint flange between described Aerobic Pond, graticule mesh is installed, graticule mesh between the joint flange of described Aerobic Pond and described anaerobic pond.
embodiment 4:
subsection water inflow A according to embodiment 2 or 3/O composite sewage treatment equipment, described Piecewise Water Distribution device has rising pipe 14.
embodiment 5:
a sewage water treatment method for subsection water inflow A/O composite sewage treatment equipment that one of claim 1-4 is described, the method comprises the steps:
waste water, after the preliminary sedimentation tank of settling tank, settling pit carry out pre-treatment, enters Aerobic Pond, anaerobic pond successively, lays diving mixer in anaerobic pond, and adds the modification biological floating stuffing of applicable anerobe attachment; Add in Aerobic Pond and be easy to aerobic bacteria attachment modification biological floating stuffing, be conducive to the residence time increasing functional microorganism on the one hand, there is strengthening synchronous nitration and denitrification usefulness simultaneously, increase denitrification effect function;
the each influent flow distribution of Aerobic Pond segmental influent is undertaken by intelligent watering device, and coefficient is respectively 0.6,0.1,0.1,0.1,0.1, and partition ratio can adjust according to influent quality; Adding of filler is successively decreased step by step from anaerobic pond to Aerobic Pond, and the dosing ratio of filler is between 20%-40%; Because filler has mobility, so establish graticule mesh in the junction in each pond, intercept filler and flee to other ponds; And the easy deposited bottom of filler, so side direction aeration perforated pipe will be arranged, to prevent bottom filler deposition pond.
the control of processing parameter is as follows:
activated sludge concentration 2000-3000mg/L, sludge reflux 40%-60%, Digestive system backflow 100%-150%, biochemical residence time 13h.
Claims (5)
1. subsection water inflow A/O composite sewage treatment equipment, its composition comprises: settling tank, it is characterized in that: described settling tank communicates with automatic paragraphing water dispensing apparatus, described automatic paragraphing water dispensing apparatus returns to pond with inside and communicates, described inside returns the Aerobic Pond that Chi Yuyi group connects in turn and communicates, described Aerobic Pond inside has anaerobic activated sludge microbial film, diving mixer, side direction aeration perforated pipe, and its inside adds the modification biological floating stuffing of anerobe attachment, and the described Aerobic Pond being positioned at least significant end communicates with anaerobic pond.
2. subsection water inflow A according to claim 1/O composite sewage treatment equipment, it is characterized in that: described settling tank comprises preliminary sedimentation tank, described preliminary sedimentation tank communicates with settling pit, and described settling tank inside is provided with into water perforated pipe, and described settling tank connects shore pipe.
3. subsection water inflow A according to claim 2/O composite sewage treatment equipment, it is characterized in that: between the joint flange of described settling tank and described Aerobic Pond, graticule mesh is installed, between joint flange between described Aerobic Pond, graticule mesh is installed, graticule mesh between the joint flange of described Aerobic Pond and described anaerobic pond.
4. the subsection water inflow A according to Claims 2 or 3/O composite sewage treatment equipment, is characterized in that: described Piecewise Water Distribution device has rising pipe.
5. a sewage water treatment method for subsection water inflow A/O composite sewage treatment equipment that one of claim 1-4 is described, is characterized in that: the method comprises the steps:
Waste water, after the preliminary sedimentation tank of settling tank, settling pit carry out pre-treatment, enters Aerobic Pond, anaerobic pond successively, lays diving mixer in anaerobic pond, and adds the modification biological floating stuffing of applicable anerobe attachment; Add in Aerobic Pond and be easy to aerobic bacteria attachment modification biological floating stuffing, be conducive to the residence time increasing functional microorganism on the one hand, there is strengthening synchronous nitration and denitrification usefulness simultaneously, increase denitrification effect function;
The each influent flow distribution of Aerobic Pond segmental influent is undertaken by intelligent watering device, and coefficient is respectively 0.6,0.1,0.1,0.1,0.1, and partition ratio can adjust according to influent quality; Adding of filler is successively decreased step by step from anaerobic pond to Aerobic Pond, and the dosing ratio of filler is between 20%-40%; Because filler has mobility, so establish graticule mesh in the junction in each pond, intercept filler and flee to other ponds; And the easy deposited bottom of filler, so side direction aeration perforated pipe will be arranged, to prevent bottom filler deposition pond.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| MD4483C1 (en) * | 2016-12-19 | 2017-12-31 | Василий ВЫРЛАН | Sewage treatment plant and process and floating load |
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2015
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| JPH07313992A (en) * | 1994-05-30 | 1995-12-05 | Nkk Corp | Treatment of sewage |
| WO2001009047A1 (en) * | 1999-08-02 | 2001-02-08 | Asio, S.R.O. | Municipal waste-water treatment method |
| CN200949077Y (en) * | 2006-07-28 | 2007-09-19 | 重庆大学 | Active sludge-biological film combined type integral sewage treatment equipment |
| CN101012088A (en) * | 2007-02-01 | 2007-08-08 | 北京工业大学 | Low-oxygen aeration control device and method for subsection water inflow A/O biological denitrification technique |
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| CN202625975U (en) * | 2012-04-05 | 2012-12-26 | 北京工业大学 | Device for strengthening synchronous nitrification and denitrification (SND) biological nitrogen and phosphorus removal through step-feeding process |
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| MD4483C1 (en) * | 2016-12-19 | 2017-12-31 | Василий ВЫРЛАН | Sewage treatment plant and process and floating load |
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