CN102515426A - Anaerobic hydrolysis system for treating biorefractory waste water and anaerobic hydrolysis technology adopting the anaerobic hydrolysis system - Google Patents
Anaerobic hydrolysis system for treating biorefractory waste water and anaerobic hydrolysis technology adopting the anaerobic hydrolysis system Download PDFInfo
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- CN102515426A CN102515426A CN2011104020585A CN201110402058A CN102515426A CN 102515426 A CN102515426 A CN 102515426A CN 2011104020585 A CN2011104020585 A CN 2011104020585A CN 201110402058 A CN201110402058 A CN 201110402058A CN 102515426 A CN102515426 A CN 102515426A
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Abstract
The invention discloses an anaerobic hydrolysis system for treating biorefractory waste water and an anaerobic hydrolysis technology adopting the anaerobic hydrolysis system. The anaerobic hydrolysis system for treating biorefractory waste water is characterized in that an anaerobic hydrolysis tower, a water pipe, an aerobic device, a water pipe and a secondary sedimentation device are connected orderly; an anaerobic hydrolysis catalyst filling material is arranged in the middle part of the anaerobic hydrolysis tower; water distributors are arranged at the bottom of the anaerobic hydrolysis tower; a water feeding pump, a valve and the water distributors are connected orderly; a mixed liquid reflux pump is arranged outside the anaerobic hydrolysis tower; an aeration system is arranged at the bottom of the aerobic device; the aeration system is connected to an air blower; an outlet of the bottom of the secondary sedimentation device passes through a secondary sedimentation zone sludge reflux pump and is connected to the bottom of the aerobic device through a sludge return pipe; and a water outlet pipe is arranged at an upper part of the secondary sedimentation device. The anaerobic hydrolysis technology adopting the anaerobic hydrolysis system for treating biorefractory waste water is suitable for all biorefractory waste water such as printing and dyeing waste water, medical and chemical waste water, papermaking waste water, garbage leachate waste water and coking waste water, and can be utilized for biorefractory waste water treatment of a new sewage treatment project and for reconstruction of existent projects.
Description
Technical field
The present invention relates to field of environment engineering technology, relate in particular to a kind of anaerobic hydrolysis system and technology thereof of handling bio-refractory waste water.
Background technology
Along with the quickening propelling of city process, a large amount of development of industrial enterprise, in addition; Country and enterprise are to the more and more attention of environment protection, the synchronization implementation of cleaner production, the enforcement of national pollution emission reduction policy; Make some industrial enterprises pay attention to cleaner production; Reduce the generation of wastewater flow rate, make the concentration of waste water increase the also corresponding increase of the difficulty of wastewater treatment.The organic pollutant of these high densitys, bio-refractory can remain in the water body after getting into water body for a long time, has stronger toxicity and carcinogenic, mutagenesis, and through food chain accumulation, enrichment, finally gets into toxigenicity in animal or human's body.The poisonous and harmful trade effluent of high density, bio-refractory, it is up to standard to adopt existing conventional process method to be difficult to, and must develop pointed, reliable novel treatment technology.Along with the increasingly stringent of National Environment Policy Act rule, country and local government will propose higher requirement to enterprise's externally discharged waste water emission standard.And draining generally has the characteristics of low COD (about 100mg/L), low B/C value, difficult biochemical treatment outside the present industrial enterprise, and this just requires to develop efficiently, advanced treatment of wastewater is technological cheaply, to adapt to the environmental requirement of increasingly stringent.
Anaerobic hydrolysis technology is through the control acidization; Utilize the anaerobion in the mud; Can the larger molecular organics of non-molten attitude or difficult degradation in the waste water be converted into and dissolve the small organic molecule that attitude is prone to degraded; Therefore significantly improve the biodegradability of waste water, be applied to more and more in the pre-treatment of various used water difficult to degradate, and have that excess sludge production is few, energy consumption is low, advantage such as simple to operate, effect stability.Show that through secular practical studies the principal element that influences the acidication processing efficiency is: the homogeneity and the muddy water blended adequacy of water inlet water distribution.So the key that improves the anaerobic hydrolysis technology is to handle this two kinds of principal elements well.For this reason, scientist has gone out multiple different form to the form Study of acidication and has remedied above deficiency.The arrangement form of acidication can be divided into: flow lifting type, pulling flow type and deflector type.Various reactive modes differ from one another also respectively has shortcoming.A kind of anaerobic hydrolysis device of handling bio-refractory waste water of exploitation is still a focus in environmental protection field at present.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of anaerobic hydrolysis system and technology thereof of handling bio-refractory waste water is provided.
The anaerobic hydrolysis system that handles bio-refractory waste water comprises intake pump, valve, water distributor, anaerobic hydrolysis catalyst filling, anaerobic hydrolysis tower, crosses water pipe, gas blower, aerobic device, aerating system, crosses water pipe, two sink devices, two heavy district sludge reflux pumps, mud return line, rising pipe and mixed-liquor return pumps; Anaerobic hydrolysis tower, mistake water pipe, aerobic device, mistake water pipe, two sink devices link to each other in order; Anaerobic hydrolysis tower middle part is provided with the anaerobic hydrolysis catalyst filling; The anaerobic hydrolysis tower bottom is provided with water distributor, and intake pump, valve, water distributor link to each other in order, and the anaerobic hydrolysis tower is provided with the mixed-liquor return pump outward; Aerobic bottom of device is provided with aerating system; Aerating system links to each other with gas blower, and two sink device outlet at bottoms link to each other with aerobic bottom of device through mud return line through two heavy district sludge reflux pumps, and two sink device tops are provided with rising pipe.
The anaerobic hydrolysis technology of handling bio-refractory waste water is: bio-refractory waste water gets into the anaerobic hydrolysis tower through intake pump through the valve water distributor; Bio-refractory waste water is through the anaerobic hydrolysis catalyst filling in the anaerobic hydrolysis tower; Stop and passed through water pipe after 12～24 hours and get into aerobic device; The mud that also has warp two sink devices two heavy district sludge reflux pumps to reflux and come that gets into synchronously through mud return line; Establish aerating system in the aerobic device, make the sewage sludge thorough mixing, bio-refractory waste water is carried out sufficient aerobic reaction; To bio-refractory waste water, anaerobic hydrolysis mainly is the biodegradability that improves waste water, reduces the concentration of sewage, alleviates follow-up aerobic load; Mixed solution in the aerobic device charges into air through gas blower and aerating system, and airborne oxygen is absorbed by the aerobic microbiological in the bio-refractory waste water, the mikrobe organic pollutant in the mixed solution of in process of growth, degrading simultaneously; Bio-refractory waste water flows into two sink devices through aerobic device, mistake water pipe, and after mud-water separation, supernatant effluxes, and two sink device mud are back to aerobic bottom of device through mud return line, excess sludge decontamination mud treatment system through two heavy district sludge reflux pumps; Mixed solution through 12～24 hours anaerobic hydrolysis towers flow to anaerobic hydrolysis tower inlet area through the mixed-liquor return blowback simultaneously.
Described anaerobic hydrolysis catalyst filling is to be carrier with aluminum oxide, zeolite, activated-carbon catalyst; Through immersion, load, sintering process loaded Cu, Cs, Mn, Fe, Ni, Zn metallic element, promote anaerobic hydrolysis to improve the purpose of wastewater biodegradability and decolouring to reach.
Described bio-refractory waste water is dyeing waste water, doctorization waste water, paper waste, percolate waste water, coking chemical waste water.
The beneficial effect that the present invention compared with prior art has is:
1) compactness simple for structure of the hydrolysis device in this technology, water distribution is even, and the operation operational management is convenient.
2) biodegradability of bio-refractory waste water can fully improve in the acidication workshop section in this technology, and follow-up aerobic workshop section can better be played a role.
3) in the acidication workshop section in this technology through loading the catalyzer of crossing through overactivation, more can improve the biodegradability of bio-refractory waste water.
4) this technology both can be used for newly-built sewage treatment project, also can be used for building the transformation of engineering.
Description of drawings
Fig. 1 is an anaerobic hydrolysis system architecture synoptic diagram of handling bio-refractory waste water;
Fig. 2 is the plot plan of water distributor of the present invention.
Embodiment
As shown in Figure 1, the anaerobic hydrolysis system that handles bio-refractory waste water comprises intake pump 1, valve 2, water distributor 3, anaerobic hydrolysis catalyst filling 4, anaerobic hydrolysis tower 5, crosses water pipe 6, gas blower 7, aerobic device 8, aerating system 9, crosses water pipe 10, two sink devices, 11, two heavy district sludge reflux pumps 12, mud return line 13, rising pipe 14 and mixed-liquor return pumps 15; Anaerobic hydrolysis tower 5, mistake water pipe 6, aerobic device 8, mistake water pipe 10, two sink devices 11 link to each other in order; Anaerobic hydrolysis tower 5 middle parts are provided with anaerobic hydrolysis catalyst filling 4; Anaerobic hydrolysis tower 5 bottoms are provided with water distributor 3, and intake pump 1, valve 2, water distributor 3 link to each other in order, the anaerobic hydrolysis tower 5 outer mixed-liquor return pumps 15 that are provided with; Aerobic device 8 bottoms are provided with aerating system 9; Aerating system 9 links to each other with gas blower 7, and two sink devices, 11 outlet at bottoms link to each other with aerobic device 8 bottoms through mud return line 13 through two heavy district sludge reflux pumps 12, and two sink devices, 11 tops are provided with rising pipe 14.
The anaerobic hydrolysis technology of handling bio-refractory waste water is: bio-refractory waste water gets into anaerobic hydrolysis tower 5 through intake pump 1 through valve 2 water distributors 3; Bio-refractory waste water is through the anaerobic hydrolysis catalyst filling 4 in the anaerobic hydrolysis tower 5; Stop and passed through the aerobic device 8 of water pipe 6 entering after 12～24 hours; The mud that also has warp two sink devices 9 two heavy district sludge reflux pumps 12 to reflux and come that gets into synchronously through mud return line 11; Establish aerating system 9 in the aerobic device 8, make the sewage sludge thorough mixing, bio-refractory waste water is carried out sufficient aerobic reaction; To bio-refractory waste water, anaerobic hydrolysis mainly is the biodegradability that improves waste water, reduces the concentration of sewage, alleviates follow-up aerobic load; Mixed solution in the aerobic device 8 charges into air through gas blower 7 and aerating system 9, and airborne oxygen is absorbed by the aerobic microbiological in the bio-refractory waste water, the mikrobe organic pollutant in the mixed solution of in process of growth, degrading simultaneously; Bio-refractory waste water through aerobic device 8, cross water pipe 10 and flow into two sink devices 11; After mud-water separation; Supernatant effluxes, and two sink device mud are back to aerobic device 8 bottoms, excess sludge decontamination mud treatment system through two heavy district sludge reflux pumps 12 through mud return line 11; Mixed solution through 12～24 hours anaerobic hydrolysis towers 5 is back to anaerobic hydrolysis tower 5 inlet areas through mixed-liquor return pump 15 simultaneously.
Described anaerobic hydrolysis catalyst filling 4 is to be carrier with aluminum oxide, zeolite, activated-carbon catalyst; Through immersion, load, sintering process loaded Cu, Cs, Mn, Fe, Ni, Zn metallic element, promote anaerobic hydrolysis to improve the purpose of wastewater biodegradability and decolouring to reach.
Described bio-refractory waste water is used water difficult to degradate such as dyeing waste water, doctorization waste water, paper waste, percolate waste water, coking chemical waste water.
Embodiment 1
The waste water that gets into technology is synthesis pharmaceutical class industrial sewage, and sewage quality is pH:6～8, CODcr:4000～7000mg/l, NH<sub >3</sub>-N:45～90mg/l, TP:2～6mg/l, colourity: 256 times, water temperature is a normal temperature, and the water yield is 500m<sup >3</sup>/ d, after materialization, biochemical treatment, CODcr:200～400mg/l; For reaching COD<the index of 100mg/>l, increasing sewage treatment process is that anaerobic hydrolysis+O pond+two are heavy, water outlet reaches processing requirements: CODcr basically:<100mgl.
Embodiment 2
The waste water that gets into technology is for passing through the percolate of biochemical treatment, CODcr:500～800mg/l, ammonia nitrogen: 200～300mg/l, colourity: 128 times.Sewage adopts the heavy art breading of anaerobic hydrolysis+O pond+two, and anaerobic hydrolysis stops 24h, and the aerobic zone residence time is 18h; Water outlet reaches processing requirements: CODcr＜100 mg/l, ammonia nitrogen＜15mg/l, colourity＜32 times.
Claims (4)
1. anaerobic hydrolysis system that handles bio-refractory waste water is characterized in that comprising intake pump (1), valve (2), water distributor (3), anaerobic hydrolysis catalyst filling (4), anaerobic hydrolysis tower (5), crosses water pipe (6), gas blower (7), aerobic device (8), aerating system (9), crosses water pipe (10), two sink devices (11), two heavy district sludge reflux pumps (12), mud return line (13), rising pipe (14) and mixed-liquor return pumps (15); Anaerobic hydrolysis tower (5), mistake water pipe (6), aerobic device (8), mistake water pipe (10), two sink devices (11) link to each other in order; Anaerobic hydrolysis tower (5) middle part is provided with anaerobic hydrolysis catalyst filling (4); Anaerobic hydrolysis tower (5) bottom is provided with water distributor (3); Intake pump (1), valve (2), water distributor (3) link to each other in order; The outer mixed-liquor return pump (15) that is provided with of anaerobic hydrolysis tower (5), aerobic device (8) bottom is provided with aerating system (9), and aerating system (9) links to each other with gas blower (7); Two sink devices (11) outlet at bottom links to each other with aerobic device (8) bottom through mud return line (13) through two heavy district's sludge reflux pumps (12), and two sink devices (11) top is provided with rising pipe (14).
2. one kind is used the anaerobic hydrolysis technology of the processing bio-refractory waste water of system according to claim 1; It is characterized in that: bio-refractory waste water gets into anaerobic hydrolysis tower (5) through intake pump (1) through valve (2) water distributor (3); Bio-refractory waste water is through the anaerobic hydrolysis catalyst filling (4) in the anaerobic hydrolysis tower (5); Stop and passed through water pipe (6) after 12～24 hours and get into aerobic device (8); The mud that also has warp two sink devices (9) two heavy district's sludge reflux pumps (12) to reflux and come that gets into synchronously through mud return line (11); Establish aerating system (9) in the aerobic device (8), make the sewage sludge thorough mixing, bio-refractory waste water is carried out sufficient aerobic reaction; To bio-refractory waste water, anaerobic hydrolysis mainly is the biodegradability that improves waste water, reduces the concentration of sewage, alleviates follow-up aerobic load; Mixed solution in the aerobic device (8) charges into air through gas blower (7) and aerating system (9), and airborne oxygen is absorbed by the aerobic microbiological in the bio-refractory waste water, the mikrobe organic pollutant in the mixed solution of in process of growth, degrading simultaneously; Bio-refractory waste water flows into two sink devices (11) through aerobic device (8), mistake water pipe (10); After mud-water separation; Supernatant effluxes; Two sink device mud are back to aerobic device (8) bottom, excess sludge decontamination mud treatment system through two heavy district's sludge reflux pumps (12) through mud return line (11); Simultaneously through 12～24 hours the anaerobic hydrolysis tower (5) mixed solution be back to anaerobic hydrolysis tower (5) inlet area through mixed-liquor return pump (15).
3. a kind of anaerobic hydrolysis technology of handling bio-refractory waste water as claimed in claim 2; It is characterized in that: described anaerobic hydrolysis catalyst filling (4) is to be carrier with aluminum oxide, zeolite, activated-carbon catalyst; Through immersion, load, sintering process loaded Cu, Cs, Mn, Fe, Ni, Zn metallic element, promote anaerobic hydrolysis to improve the purpose of wastewater biodegradability and decolouring to reach.
4. a kind of anaerobic hydrolysis technology of handling bio-refractory waste water as claimed in claim 2 is characterized in that: described bio-refractory waste water is dyeing waste water, doctorization waste water, paper waste, percolate waste water, coking chemical waste water.
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Cited By (2)
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| CN104402167A (en) * | 2014-10-20 | 2015-03-11 | 上海绿澄环保科技有限公司 | Printing and dyeing wastewater biochemical treatment method |
| CN105417846A (en) * | 2015-11-13 | 2016-03-23 | 淄博正大聚氨酯有限公司 | Method for treating polyether polyol process wastewater |
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| CN1562802A (en) * | 2004-03-26 | 2005-01-12 | 重庆大学 | Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility |
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Patent Citations (7)
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| CN1187469A (en) * | 1997-01-07 | 1998-07-15 | 重庆建筑大学 | Method of producing granular enzymetic filling for treating waste water |
| CN1562802A (en) * | 2004-03-26 | 2005-01-12 | 重庆大学 | Vertical deflector combined Filtration type dephosphorization and nitrogen rejection facility |
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Application publication date: 20120627 |