CN205347141U - Processing system of difficult biochemical degradation waste water - Google Patents
Processing system of difficult biochemical degradation waste water Download PDFInfo
- Publication number
- CN205347141U CN205347141U CN201620020790.4U CN201620020790U CN205347141U CN 205347141 U CN205347141 U CN 205347141U CN 201620020790 U CN201620020790 U CN 201620020790U CN 205347141 U CN205347141 U CN 205347141U
- Authority
- CN
- China
- Prior art keywords
- baf
- waste water
- aeration
- water
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model belongs to processing system of difficult biochemical degradation waste water in the waste water treatment field is connected gradually by half aerobe membrane filter pond of two -stage, active carbon bological aerated filter and suspension filler bological aerated filter and forms, and half aerobe membrane filter pond be the good oxygen biological filter of anaerobism - half, and the filter bed bottom is 60~80 mm's of particle diameter gravel filter, and the middle level is 10~50 mm's of particle diameter gravel filter, the upper washed ore that is 1.5 mm of particle diameter, load activated carbon filler among the active carbon bological aerated filter, installation aeration equipment and anti - flushing device, aeration way are filtering pond bottom aeration, loading cylindrical polyethylene among the suspension filler bological aerated filter and packing, installation aeration equipment, aeration way are filtering pond bottom aeration. The utility model provides a processing system of difficult biochemical degradation waste water reoxygenation is effectual, the low cost, intake in succession and impact load higher, operation management is simple and convenient, the treatment effect is stabilized up to standardly.
Description
Technical field
This utility model belongs to field of waste water treatment, is specifically related to the process system of a kind of bio-refractory waste water.
Background technology
The environmental protection disposal of bio-refractory waste water and reuse are one of encountered difficult problems of Industrial-Enterprises in China all the time.Bio-refractory waste water kind is complicated, and based on industrial wastewater, industry relates to petrochemical industry, printing and dyeing, plating, pulping and paper-making, pharmacy, pesticide and food etc., it is mainly characterized in that organic concentration big, high toxicity, high chroma and high salinity, BOD/COD ratio is less than 0.3.The bio-refractory waste water processing method that Chinese patent CN1295033 and CN101607751 provides is required for using electroxidation method, and energy consumption is high, and operating cost is high, and operation management is complicated, and treatment effect is unstable.Bacteria bed system (BiofilterSystem) processes at traditional wastewater land percolation and grows up in system-based, generally adopt waterflooding and the dry working method alternated that falls, utilize soil aquifer that sewage is carried out integrated treatment, by retaining, biodegradable synergism make pollutant be removed.The feature of this technology is not for need to add medicament, it is not required that high-energy equipment, reduces investment and the running expense for the treatment of facility.But it is big that traditional system yet suffers from floor space, the problem that treatment effeciency is relatively low and anti-shock loading is low, it is impossible to suitable in the process of bio-refractory waste water.BAF BAF (BiologicalAeratedFilter) is a kind of catalytic oxidation biomembrance process grown up on ordinary biofilter in recent years, namely its maximum feature is integrate biological oxidation and retain suspended solid, save follow-up secondary sedimentation tank, floor space is little, organic volumetric loading is high, and hydraulic load is big, and hydraulic detention time is short, it is widely used in sanitary sewage, and in the process of the difficult biochemical waste water such as Partial Food processing waste water, malting effluent.But it is structurally and operationally complex, energy consumption is relative also higher, and treatment effect still reaches to less than " urban wastewater treatment firm pollutant emission standard ".
Summary of the invention
It is high that the purpose of this utility model is in that to overcome in prior art operating cost, operation management is complicated, the defect that treatment effeciency is relatively low, there is provided that a kind of reoxygenation is effective, low cost, continuum micromeehanics and impact load higher, operation management is easy, the process system of the bio-refractory waste water for the treatment of effect stably reaching standard.
The purpose of this utility model is achieved through the following technical solutions:
The process system of bio-refractory waste water of the present utility model is connected in sequence by two-stage half aerobic biologic membrane filter tank, activated carbon BAF and floating stuffing BAF, it is characterized in that half aerobic biologic membrane filter tank is anaerobism-half aerobe filter bed, Inlet and outlet water mode adopts top water inlet bottom water outlet, filter bed bottom is the gravel filling of particle diameter 60～80mm, middle level is the gravel filling of particle diameter 10～50mm, and upper strata is the washed ore of particle diameter 1.5mm；Activated carbon BAF Inlet and outlet water mode adopts top water inlet bottom water outlet, loads active carbon filler, install aerator and backwashing equipment in pond, and aeration mode is aeration bottom filter tank；Floating stuffing BAF Inlet and outlet water mode adopts bottom water inlet top water outlet, loads cylindrical polyethylene plastic filler, install aerator in pond, and aeration mode is aeration bottom filter tank.
In such scheme, before described half aerobic biologic membrane filter tank, it is provided with cloth pond.
In such scheme, described aerator is connected to form by blower fan and pipeline, and activated carbon BAF and floating stuffing BAF, by recoiling water pump and backwash water pipe connects to form, are carried out watercourse aeration and backwash by backwashing equipment respectively.
In such scheme, described activated carbon BAF is connected by intermediate pool and two and half aerobic biologic membrane filter tanks.
In such scheme, described floating stuffing BAF is sequentially connected with sedimentation tank and clear water reserviors.
This utility model adopts four unit, respectively one-level half aerobic biologic membrane filter tank, two and half aerobic biologic membrane filter tanks, activated carbon BAF and floating stuffing BAF, with half aerobic biologic membrane filter tank for core, auxiliary two-stage biofilter processes, and increases treatment effeciency, increases oxidation effectiveness.
Work process of the present utility model is as follows:
(1) one-level half aerobic biologic membrane filter tank: bio-refractory waste water suction one-level half aerobic biologic membrane filter tank is processed.
(2) two and half aerobic biologic membrane filter tanks: the waste water pump processed by one-level half aerobic biologic membrane filter tank is inputted two and half aerobic biologic membrane filter tanks and processes；
(3) activated carbon BAF: the waste water processed through two and half aerobic biologic membrane filter tanks enters intermediate pool, it is lifted into activated carbon BAF by pump again to process, by blower fan, filter tank is carried out Air Exposure, regulate aeration rate, observe activated carbon biofilm situation simultaneously；
(4) floating stuffing BAF: the waste water processed through activated carbon BAF is entered from bottom floating stuffing biological filter tank again and carries out Air Exposure, control oxygen in water amount, realize dissolved oxygen Gradient distribution environment, realize the symbiosis of anaerobism in biofilter, double oxygen and aerobic three kinds of microorganisms, to realize the purpose of the pollutant such as organics removal and ammonia nitrogen, waste water after floating stuffing BAF processes enters sedimentation tank and clear water reserviors, discharge up to standard or reuse.
Sewage disposal principle of the present utility model is:
Half aerobic biologic membrane filter tank system utilizes the biochemical process of the natural physical filtering of artificial soil, absorption and microorganism, makes sewage be able to preliminary purification, particularly relieves the bio-toxicity of bio-refractory waste water, the growth of microorganism in being conducive to next step to process.
Activated carbon and floating stuffing BAF are built upon a kind of biofilter that biomembrane processes, it it is the granular filler loading high-specific surface area in filter tank, with the carrier providing microbial film to grow, at filter material layer blowing air down aeration, make air reverse with sewage or contact in the same direction, making the Organic substance in sewage be degraded by biochemical reaction with filling surface biomembrane, filler simultaneously works as physical filtering effect.And not being both of activated carbon filter and Suspended Media Filter Bed, activated carbon granule is except playing the effect of biofilm biological oxidation, it is also possible to retain absorbed portion Organic substance, and its adsorption is more than floating stuffing, and floating stuffing filters to be characterized as being and is easier to biofilm, it is easy to biochemical treatment.
Difficult biochemical waste water is generally the tail water after anaerobic-aerobic processes, its biodegradability extreme difference, advanced treating is very difficult, it is critical only that characteristic microorganism is difficult to cultivate, must reduce in front end in waste water and biochemical treatment is had inhibiting material, form single-minded flora, and improve wastewater biodegradability.
What this utility model processed difficult biochemical waste water is characterized in that the creationary multistep treatment employing activated carbon, high efficiency packing and the coupling of biomembrane filter tank of BAF.Activated carbon has two effects, and one is the organic substance adsorbing some bio-refractory, and the micropore of its two activated carbon and great specific surface area are the place that exclusive aerobic microbiological flora provides growth and catalytic oxidation.And efficient floating stuffing aeration biological filter chamber treatment system, its feature is easy to be filmed, and Biomass is big, as consistent in difficult biochemical waste water character, run, effect of inoculation better, then after biofilm, the toleration of microorganism and specificity are more consistent, comparatively obvious for processing difficult biochemical waste water effect.But its shortcoming is that the microorganism species cultivated is more single, and toleration is general, once waste water quality generation large change, its aerobic microbiological treatment effect is likely to give a discount.Therefore, this utility model adds two-stage half aerobic biologic membrane filter tank in front end, using the grit of different-grain diameter as filler, whole filter tank is formed from top to bottom half aerobic to anaerobism again to half aerobic environment, cultivate exclusive microorganism, difficult biochemical waste water carried out the chain rupture at initial stage and clears up, its macromole is made to be converted into little molecule, Aerobic Process for Treatment for subordinate's BAF has good effect, is filtered by grit simultaneously and also functions to reduce organic loading, removes the effect of bulky grain and partial decolorization.This utility model has obvious and stable treatment effect for the difficult biochemical waste water (such as wastewater from chemical industry) of load relatively low (200～400mg/L), and desirable to removing effectiveness comparison while ammonia nitrogen, and waste water can stably reach relevant criterion and discharge.
The beneficial effects of the utility model are in that: technique is practical, treatment effect is stable, the scope of application is wider, may be developed that the total system of waste water is cleaned in multiple chemical packs barrelling based on this, facility structure is simple and safeguards simple, maintenance cost is low, actual processing effect is: be about 25 DEG C in temperature, one cubic meter of water processing cost is about 0.7 yuan, COD processes clearance up to 70%, colourity, and the parameter such as ammonia nitrogen all can be up to state standards discharge, environment is not caused secondary pollution, and is fully achieved Treated sewage reusing water inlet index.After premenstrual end can be made to process, the industrial wastewater water quality of not easily biochemical treatment reaches or is better than " urban wastewater treatment firm pollutant emission standard " (GB18919-2002) one-level B standard.This utility model each unit can not only be used for the pre-treating technology of biological treatment, be conducive to sedimentation and the bio-film colonization of mud, also can use as the individual processing method of the extremely difficult biochemical waste water of underload after biochemical processing process, can realize further reducing the pollutant index such as COD, ammonia nitrogen decolouring and deodorizing, treatment effect stably reaching standard.This utility model is applied widely, and disposal ability is strong, is applicable not only to tail end and the advanced treating of industrial wastewater, it is also possible to for the process of other sanitary sewages.
Therefore, it is high that this utility model overcomes operating cost in prior art, and operation management is complicated, the defect that treatment effeciency is relatively low, it is provided that the process system reoxygenation of bio-refractory waste water effective, low cost, continuum micromeehanics and impact load are higher, and operation management is easy, treatment effect stably reaching standard.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is underload biomembrane filter tank of the present utility model schematic diagram.
Fig. 3 is the N-N generalized section of Fig. 2.
Fig. 4 is activated carbon BAF of the present utility model and floating stuffing BAF schematic diagram.
In accompanying drawing, 1: water distributor, 2: water inlet pipe, 3: outlet, 4: waterwall, 5: activated carbon BAF aeration air inlet pipe, 6: active carbon filler, 7: activated carbon BAF aeration head, 8: recoil water pump, 9: backwash water pipe, 10: blower fan escape pipe, 11: floating stuffing BAF aeration air inlet pipe, 12: floating stuffing, 13: floating stuffing BAF aeration head, 14: concrete walls.
Detailed description of the invention
It is described in further detail this utility model below in conjunction with drawings and Examples, but this utility model is not limited only to described embodiment.
Embodiment one
Process system such as Fig. 1 of the bio-refractory waste water of this example, Fig. 2, shown in Fig. 3 and Fig. 4, by two-stage half aerobic biologic membrane filter tank, activated carbon BAF and floating stuffing BAF are connected in sequence, half aerobic biologic membrane filter tank is anaerobism-half aerobe filter bed, it it is concrete foundation at the bottom of pond, sidewall waterwall 4 is brick, water distribution system pipe fitting all adopts Corvic (UPVC) material, Inlet and outlet water mode adopts top water inlet bottom water outlet, bottom filling adopts gravel rebasing, particle diameter 60～80mm, this layer thickness is about 400mm, middle part adopts particle diameter to be 10～50mm gravel filling, thickness 300mm, top adopts particle diameter 1.5mm washed ore, thickness is 600mm.Activated carbon BAF Inlet and outlet water mode adopts top water inlet bottom water outlet, loads active carbon filler 6 in pond, and active carbon filler 6 adopts φ 5 × 8mm column-shaped active carbon, and thickness of filter bed is 2400mm；Installing aerator and backwashing equipment, aeration mode is aeration bottom filter tank.Floating stuffing BAF Inlet and outlet water mode adopts bottom water inlet top water outlet, and in pond, the floating stuffing 12 of filling is cylindrical polyethylene plastic filler, size φ 25 × 9mm, specific surface area 8m2About/g, floating stuffing layer height 2000mm；Installing aerator, aeration mode is aeration bottom filter tank.
It is provided with cloth pond before half aerobic biologic membrane filter tank.
The aerator of activated carbon BAF is connected to form with activated carbon BAF aeration air inlet pipe 5 and activated carbon BAF aeration head 7 by blower fan escape pipe 10, and activated carbon BAF is carried out watercourse aeration.The backwashing equipment of activated carbon BAF is connected to form by backwash water pipe 9, recoil water pump 8 and activated carbon BAF aeration head 7, and activated carbon BAF is carried out backwash.
The aerator of floating stuffing BAF is connected to form with floating stuffing BAF aeration air inlet pipe 11 and floating stuffing BAF aeration head 13 by blower fan escape pipe 10, and floating stuffing BAF is carried out watercourse aeration.
Activated carbon BAF is connected by intermediate pool and two and half aerobic biologic membrane filter tanks.
Floating stuffing BAF is sequentially connected with sedimentation tank and clear water reserviors.
System hydraulic load is 0.2～2m3/(m2D), 1d:3d(water distribution 1d, run 3d).
Monitoring result shows, enters COD average out to 200mg/L, the NH of half aerobic biologic membrane filter tank system through the waste water that cleans of front-end processing after a series of processing units3-N is 5mg/L, after the process system of the bio-refractory waste water of this example processes, and water outlet COD average out to 60mg/L, NH3-N is 0mg/L, COD clearance is 70%, NH3-N clearance is 100%.Sewage effluent quality reaches " urban wastewater treatment firm pollutant emission standard " (GB18919-2002) one-level B standard.
Experimental data shows: after stable, in difficult biochemical wastewater from chemical industry, COD is 235.2～311.1mg/L, 169.6～192.6mg/L is reduced to behind one-level half aerobic biologic membrane filter tank, two grades is 143.5～166.4mg/L later, it is 73.41～104.4mg/L through activated carbon aerating filter, is 47.4～68.1mg/L after floating stuffing aerating filter.
When increasing waste water load COD is 500mg/L, last water outlet COD, at 82.9mg/L, meets national sewage comprehensive emission standard.
Embodiment two
The process system of the bio-refractory waste water of this example is not except having cloth pond before half aerobic biologic membrane filter tank, and all the other are with embodiment one.
Embodiment three
The process system of the bio-refractory waste water of this example is except not having intermediate pool, and outside activated carbon BAF directly connects with two and half aerobic biologic membrane filter tanks, all the other are with embodiment one.
Claims (5)
1. the process system of a bio-refractory waste water, it is connected in sequence by two-stage half aerobic biologic membrane filter tank, activated carbon BAF and floating stuffing BAF, it is characterized in that half aerobic biologic membrane filter tank is anaerobism-half aerobe filter bed, Inlet and outlet water mode adopts top water inlet bottom water outlet, filter bed bottom is the gravel filling of particle diameter 60～80mm, middle level is the gravel filling of particle diameter 10～50mm, and upper strata is the washed ore of particle diameter 1.5mm；Activated carbon BAF Inlet and outlet water mode adopts top water inlet bottom water outlet, loads active carbon filler, install aerator and backwashing equipment in pond, and aeration mode is aeration bottom filter tank；Floating stuffing BAF Inlet and outlet water mode adopts bottom water inlet top water outlet, loads cylindrical polyethylene plastic filler, install aerator in pond, and aeration mode is aeration bottom filter tank.
2. the process system of bio-refractory waste water according to claim 1, it is characterised in that be provided with cloth pond before described half aerobic biologic membrane filter tank.
3. the process system of bio-refractory waste water according to claim 1, it is characterized in that described aerator is connected to form by blower fan and pipeline, activated carbon BAF and floating stuffing BAF, by recoiling water pump and backwash water pipe connects to form, are carried out watercourse aeration and backwash by backwashing equipment respectively.
4. the process system of bio-refractory waste water according to claim 1, it is characterised in that described activated carbon BAF is connected by intermediate pool and two and half aerobic biologic membrane filter tanks.
5. the process system of bio-refractory waste water according to claim 1, it is characterised in that described floating stuffing BAF is sequentially connected with sedimentation tank and clear water reserviors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620020790.4U CN205347141U (en) | 2016-01-11 | 2016-01-11 | Processing system of difficult biochemical degradation waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620020790.4U CN205347141U (en) | 2016-01-11 | 2016-01-11 | Processing system of difficult biochemical degradation waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205347141U true CN205347141U (en) | 2016-06-29 |
Family
ID=56174834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620020790.4U Active CN205347141U (en) | 2016-01-11 | 2016-01-11 | Processing system of difficult biochemical degradation waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205347141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417897A (en) * | 2016-01-11 | 2016-03-23 | 四川省环境保护科学研究院 | Treatment system of wastewater difficult to degrade through biochemistry |
-
2016
- 2016-01-11 CN CN201620020790.4U patent/CN205347141U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417897A (en) * | 2016-01-11 | 2016-03-23 | 四川省环境保护科学研究院 | Treatment system of wastewater difficult to degrade through biochemistry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017413373B2 (en) | Method and device for bioremediation of water body | |
| CN107151050B (en) | A kind of mixotrophism type denitrification filler and its methods for making and using same | |
| WO2021243733A1 (en) | Sewage treatment apparatus with solid-liquid separation, and separation method thereof | |
| CN103880193B (en) | Build the method for vertical current constructed wetland processing breeding wastewater based on waterworks sludge | |
| CN206051680U (en) | A kind of denitrification filter pool for processing country sewage is combined MBR devices | |
| CN109942156B (en) | Biological filter based mariculture tail water treatment system and application method thereof | |
| CN110642476A (en) | Multistage A/O sewage treatment system | |
| US20100326904A1 (en) | Wastewater treatment | |
| CN210915759U (en) | Multistage A/O sewage treatment system | |
| CN209128125U (en) | A kind of biological aerated filter system for black and odorous water purification of water quality | |
| CN205347141U (en) | Processing system of difficult biochemical degradation waste water | |
| CN208071544U (en) | A kind of railway communication system production wastewater treatment system | |
| CN207792814U (en) | A kind of denitrification dephosphorization system | |
| CN110589964A (en) | Internal circulation high-efficiency denitrification biological denitrification filter tank | |
| CN103803757A (en) | Bean product waste water treatment method | |
| CN206985970U (en) | It is a kind of to improve biochemical and deeply treating wastewater system using Powdered Activated Carbon | |
| CN105417897B (en) | The processing system of bio-refractory waste water | |
| CN211644985U (en) | Brewing production wastewater purification ecological system | |
| CN101343115B (en) | Unpowered bio-filter water purifying system with oxygenation and backwash functions | |
| CN210340470U (en) | Novel biological aerated filter | |
| CN103601291A (en) | Method and denitrification infiltration system for treating sewage with low carbon-nitrogen ratio | |
| CN112811611A (en) | Double-group B-BAF filter tank device and sewage denitrification treatment method | |
| CN207130116U (en) | A kind of mechanical cleaning wastewater treatment equipment | |
| CN206751619U (en) | A kind of sanitary sewage and production wastewater comprehensive treatment system | |
| CN111977788A (en) | Plug flow type anaerobic biological filter and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |