Utility model content
To solve the problems, such as in existing technology, for problem, this practicality such as sewage-treatment plant treated sewage efficiency is low
The new one kind that provides reduces wastewater discharge to greatest extent, improves the urban sewage treating device of sewage treating efficiency.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
A kind of urban sewage treating device, the device include regulating reservoir, anoxic pond, aerobic tank, sedimentation basin and clear water reserviors, adjust
Section pond is connected with anoxic pond by lifting water pump water pipe, and with aerobic tank to be arranged side by side, centre is connected anoxic pond by water pipe, is lacked
MBBR reactors are provided with oxygen pond and aerobic tank, folded plate mechanism is additionally provided with aerobic tank, aerobic tank is connected with sedimentation basin, is sunk
Shallow lake pond is connected with clear water reserviors.
Wherein, MBBR techniques are moving bed biofilm reactor technology, and the sewage-treatment plant of the utility model is in MBBR
Folded plate is set on Process ba- sis, that is, forms folded plate type moving bed biofilm reactor, MBBR process characteristics is had concurrently and makes full use of
Folded plate, anoxic pond and aerobic tank use MBBR biological treatments, wherein water conservancy diversion folded plate technology is added, by setting folded plate significantly
The time of contact of sewage and floating stuffing in reactor is added, the pollutants such as the COD in sewage, ammonia nitrogen is thoroughly dropped
Solution and removal, substantially increase sewage treating efficiency, reduce the floor space of processing system.
Further, regulating reservoir inlet is provided with grid.For intercept suspended matter larger in sewage, floating material and
The impurity such as hair, fiber, then gravity flow enter regulating pondage and homogenizing water quality, Shi Hou roads processing unit constant current fortune in regulating reservoir
OK.
Further, mixer is provided with anoxic pond.Sewage after water quality, runoff investigation enters anoxic pond in anoxic
Active biological filler is added in pond, mixer is set, makes filler flowing uniform, it is ensured that micro- life that sewage can be grown with filler surface
Thing comes into full contact with, mixes.
Further, micro-hole aerator, micro-hole aerator connection air blower are provided with aerobic tank.Set in aerobic tank
Micro-hole aerator, on the one hand fully ensures that the dissolved oxygen needed for aerobe, on the other hand ensures suspended active biologic packing material energy
Fully fluidisation is uniform in pond.
Further, sedimentation basin is connected with flocculation medicine system.Sedimentation basin is inclined-tube sedimentation tank, sets flocculation dosing system
System, is sufficiently mixed using flocculant and sewage, the interaction force between increase suspended matter colloid, discrete particles, generation size with
The larger flock of quality, in the retention by inclined tube, makes sludge settling in bottom of pond.
Further, sludge reflux pump is provided with sedimentation basin, sludge reflux pump is connected by pipeline with anoxic pond.Precipitation
Sludge reflux pump is set in pond, for maintaining the sludge concentration of anoxic section, excess sludge discharge outward transport.
The urban sewage treating device of the utility model, to handle sanitary sewage, its advantage is in MBBR technique bases
Folded plate is set on plinth, increases the time of contact of sewage and filler, substantially increases sewage treating efficiency, generally structures combine
Change, reduce the floor space of processing system, in the case where ensureing water outlet requirement, reduce construction investment and operating cost to the greatest extent,
Ensure the reliability and validity of engineering, reduce operating repairs quantities, improve operation condition.
Embodiment
The utility model is described further with reference to embodiment, but is not limited to the content on specification.
A kind of urban sewage treating device as shown in Figure 1, the device include regulating reservoir 1, anoxic pond 2, aerobic tank 3, heavy
Shallow lake pond 4 and clear water reserviors 5, regulating reservoir 1 are connected with anoxic pond 2 by lifting water pump 6 and water pipe, and anoxic pond 2 and aerobic tank 3 is side by side
Set, centre is connected by water pipe, and MBBR reactors 7 are provided with anoxic pond 2 and aerobic tank 3, folding is additionally provided with aerobic tank 3
Trigger structure 8, is handled by the Active biological filler and waste water of suspension, adds folded plate mechanism, increase sewage is reacted with MBBR
The contact area of device, makes processing procedure stabilization, uniformly carries out;Aerobic tank 3 is connected with sedimentation basin 4, sedimentation basin 4 further with clear water
Pond 5 connects.
1 inlet of regulating reservoir is provided with grid 10, and sewage, through grid 10, filters before regulating reservoir 1 is flowed into for intercepting
The impurity such as larger suspended matter, floating material, hair and fiber in sewage;Sewage is entered in anoxic pond 2 by water pump lifting, is lacked
Mixer 11 is provided with oxygen pond 2, sewage stirring is carried out, suspended active biologic packing material is come into full contact with sewage;In aerobic tank 3
Micro-hole aerator 13 is provided with, micro-hole aerator 13 is communicated with air blower 12, it is preferable that aerobic tank 3 is to be provided with 2.
Sedimentation basin 4 uses inclined-tube sedimentation tank, it is connected with flocculation medicine system 13.Sedimentation basin 4 in pond by being provided with dirt
Mud reflux pump 14 is connected with anoxic pond 2, for sludge in sedimentation basin 4 to be back in anoxic pond 2 again, for maintaining sludge dense
Degree, carries out denitrification processing.
Use MBBR techniques in anoxic pond 2, specification 3000mm*3000mm*3300mm, with material is HDPE's in pond
The common 9m of suspended active biologic packing material3, filler is provided with the Inlet and outlet water of anoxic pond 2 and intercepts aperture plate, is stirred with what anoxic pond 2 was connected
Mix 10 power of machine and use 0.75KW, residence time of the sewage in anoxic pond 2 is 3.8h.
MBBR techniques are used in aerobic tank 3, with folded plate technology, specification 4000mm*3000mm*3300mm, in pond
With the common 12m of suspended active biologic packing material that material is HDPE3, at the Inlet and outlet water of aerobic tank 3 need to equally be provided with filler blocks
Aperture plate is cut, the micro-hole aerator set in pond uses EPDM/ABS, and stay time of the sewage in aerobic tank 3 is 5h.
Sedimentation basin 4 is inclined-tube sedimentation tank, and specification 2000mm*3000mm*3300mm, wherein honeycomb inclined-tube filler are 6m3,
Stay time of the sewage in sedimentation basin 4 is 2.4h.The specification of clear water reserviors 6 is 1500mm*3000mm*3300mm.
1 specification of regulating reservoir is 4500mm*3000mm*3300mm, sets supporting 3 sets of liquid-level floater in pond, sewage is being adjusted
Stay time is 5.8h in pond 1.
Using the treatment process of the urban sewage treating device of the utility model, comprise the following steps:
S1, sewage are entered sewage lifting in grid 10 by sewage pump after collecting and collecting, then from inflow regulating reservoir 1
It is interior, carry out the adjusting of water quality, water;
After sewage lifting is entered grid 10 by sewage after collecting and collecting by sewage pump, to intercept larger in sewage hang
The impurity such as float, floating material, hair and fiber.
S2, it is adjusted after sewage enter in the anoxic pond 2 for launching active biologic packing material, start mixer 11, make dirt
Water is contacted with Active biological filler, mixed, and carries out denitrification;
The stirring of mixer 10 makes biologic packing material move freely, be evenly distributed, it is ensured that sewage can grow micro- with filler surface
Biology comes into full contact with, mixes.Sewage carries out denitrification in anoxic pond 2 by denitrifying bacteria, obtains the TN in waste water
Removed to effective, while denitrification process, remove the most COD in sewage.
S3, the sewage self-flowing after the processing of anoxic pond 2 enter in aerobic tank 3, are aerated into aerobic tank, and sewage is by repeatedly folding
Stream, is reacted in MBBR reactors;
Aerobic tank uses MBBR biological treatments, wherein water conservancy diversion folded plate technology is added, by setting folded plate to greatly increase
The time of contact of sewage and floating stuffing in reactor, make the pollutants such as the COD in sewage, ammonia nitrogen thoroughly degraded and
Remove.Micro-hole aerator 13 is set in aerobic tank, on the one hand fully ensures that the dissolved oxygen needed for aerobe, on the other hand really
Protecting suspended active biologic packing material can fully fluidize uniformly in pond, be made by aeration in mixed liquor of the filler in MBBR reactors
Moved freely under the action of convolution upset, continuously across the floating stuffing in the MBBR reactors and gradual appearance in filler of sewage
Face forms biomembrane.
S4, the water after aerobic tank is handled are from sedimentation basin is flow to, and dosing flocculation, floccule is through inclined tube retention sediment in heavy
Shallow lake pond bottom of pond, supernatant flow to clear water reserviors, qualified discharge certainly;
Sedimentation basin is inclined-tube sedimentation tank, sets flocculation medicine system, is sufficiently mixed using flocculant and sewage, increase suspends
Interaction force between thing colloid, discrete particles, generates size and the larger flock of quality, then the retention by inclined tube, makes
Sludge settling sets sludge reflux pump in bottom of pond in sedimentation basin, for maintaining the sludge concentration of anoxic pond, excess sludge then by
Discharge outward transport, and obtained supernatant is precipitated from clear water reserviors are flow to, finally detect qualified discharge.
The urban sewage treating device operation principle of the utility model is:In anoxic pond section, since dirty Organic substance in water is dense
Degree is very high, and microorganism is in anaerobic condition, and microorganism is aerobic-anaerobic microbe at this time, and the organic nitrogen in sewage is converted and decomposed by they
Into ammonia nitrogen, while by the use of the organic carbon in sewage as electron donor, by the NO in sewage2- N and NO3- N changes into N2, and
Also using part organic carbon source and then synthesize new cellular material.So anoxic pond not only has certain organic matter removal work(
Energy, mitigates the organic loading of follow-up aerobic tank, in favor of denitrification, the final eutrophication pollution for eliminating nitrogen;Aerobic
Pond section, since organic concentration has been greatly lowered, but still with the presence of a certain amount of organic matter and higher ammonia nitrogen, in order to make have
Machine thing obtains further oxygenolysis, while nitrification can be smoothed out in the case where carbonization is in completion,
Aerobic tank sets the relatively low aerobic biochemical system of organic loading, is primarily present aerobic microbiological in aerobic tank section and autotrophic type is thin
Bacterium-nitrifier, wherein, organic matter is resolved into CO by aerobic microbiological2And H2O, autotroph are decomposed using organic matter and produced
Inorganic carbon or air in CO2As nutrient source, by the NH in sewage3- N changes into NO2- N and NO3- N, aerobic tank water outlet are returned
Anoxic pond is flowed to, electron acceptor is provided for anoxic pond, the pollution of nitrogen is finally eliminated by denitrification, so as to reach final
Remove the purpose of the pollutant such as BOD, COD, ammonia nitrogen and TN in sewage.
The defects for the treatment of technology of the utility model is overcome in traditional wastewater processing equipment technological design, in biochemical process
Duan Caiyong B-MBBR biologic treating techniques, by adding suspended active biologic packing material in biological tank, considerably increase reactor
Interior microorganism and microbial population, while the plate-folding device coordinated with MBBR is set in aerobic tank section, add sewage and life
The steady contact time of thing filler, allows to come into full contact with dirty water pollutant, can obtain the various pollutants in sewage thorough
The degraded and removal at bottom, strong guarantee is provided for stable water outlet qualified discharge.
Obviously, the above embodiment of the utility model is only intended to clearly illustrate the utility model example,
And it is not the restriction to the embodiment of the utility model.For those of ordinary skill in the field, stated upper
It can also be made other variations or changes in different ways on the basis of bright.Here all embodiments can not be given thoroughly
Lift.It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
Protection domain row.