CN105084526A - Biological rotating disc process operation method for disposing waste water in villages and towns - Google Patents
Biological rotating disc process operation method for disposing waste water in villages and towns Download PDFInfo
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- CN105084526A CN105084526A CN201510618185.7A CN201510618185A CN105084526A CN 105084526 A CN105084526 A CN 105084526A CN 201510618185 A CN201510618185 A CN 201510618185A CN 105084526 A CN105084526 A CN 105084526A
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- blodisc
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The invention discloses a biological rotating disc process operation method for disposing waste water in villages and towns. The operation method comprises a phased launch biofilm-culturing stage, a normal operation stage, an alternate intermittent operation stage and an operation suspension stage. Biological rotating discs which are in parallel connection are subjected to the alternate operation of the four stages in batches according to water inflow and water inlet load, the cultured biofilm thickness and homogeneity of the biological rotating discs are adjusted in a periodical mode, and the biofilm updating efficiency is improved. According to the operation method, the alternate operation of the biological rotating discs and water inlet load control can be utilized, and under the condition of satisfying water outlet of the biological rotating discs, it can be guaranteed that the biological rotating discs run durably and stably.
Description
Technical field
The present invention relates to small towns saprobiaization process field, particularly relate to a kind of blodisc process operation method processing small towns sewage.
Background technology
Blodisc, as the one of biomembrance process, has the advantages that biomass is large, energy consumption is low, sludge yield is little, anti impulsion load ability is strong.And the ubiquitous treatment capacity of China's small towns sewage disposal is little, influent concentration is low, water quality and quantity feature pockety, consider that investment cost and operation management meet small towns sewage disposal present situation needs, blodisc technique small-scale sewage disposal often adopt parallel way and non-graded series connection.Because the water quality and quantity in small towns is uneven, low during height during influent load, and small towns sewage disposal runs the restriction by operation personnel's state of the art, cannot according to the running status of biofilm situation adjustment blodisc, the rotating speed of blodisc often remains on constant rotational speed, cannot adjust rotating speed in time.There will be in such cases, biofilm is blocked up, biofilm is uneven, biological membrane anaerobic, and then affects the operation of blodisc, the problem such as cause poor processing effect, rotating disk is laid particular stress on.
Come into operation so far along with blodisc technology from initial invention, the problems such as rotating disk is laid particular stress on, front-end load is too high, the growth of bayesian thiobacterium exist always, and external correlative study strengthens oxygen transmission capacity by auxiliary aeration, arranged in series reduces the methods such as load and progressively solves corresponding problem.But the sewage disposal application of blodisc technology in China small towns is different from heavy civil or sanitary sewage disposal, adopts the blodisc technique be arranged in parallel how to ensure that steady running is urgently to be resolved hurrily.
Summary of the invention
Based on the problem existing for above-mentioned prior art, the invention provides a kind of blodisc process operation method processing small towns sewage, the alternate run of blodisc and influent load can be utilized to control, when meeting blodisc water outlet, can ensure that blodisc long-term stability is run.
For solving the problems of the technologies described above, the invention provides a kind of blodisc process operation method processing small towns sewage, for the blodisc technique that small towns small-scale sewage disposal adopts parallel way to run, comprising:
(1) biofilm is started stage by stage:
All blodiscs are divided into many groups, open by group by the order sequenced, the working time that each group of blodisc of staggering starts, make each group of blodisc biofilm stage by stage successively, wherein, first group of blodisc employing high loading, high rotating speed mode have run startup biofilm; Blodiscs of second group and all the other each groups adopt the slow speed of revolution, increase the biofilm mode of flooding velocity has gradually run startup biofilm;
(2) normally run:
Each group of blodisc enters normal operating condition after completing and starting biofilm, makes each group of blodisc keep water distribution uniformity, normal speed running status, allows each group of blodisc to enter alternate intermittent when there is running status exception and runs;
(3) alternate intermittent runs:
Each group of blodisc alternately enters intermittent operation according to boot sequence, and wherein, the first group of blodisc started at first enters intermittent operation at first, and all the other are respectively organized blodisc and successively enter alternate intermittent running status by boot sequence; Each group of blodisc enters intermittent operation and is: make each group of blodisc stop water inlet, and keep normal speed to run until microbial film self falling, afterwards by this group blodisc according in step (1) described second group and all the other respectively the biofilm mode of group blodiscs again recover normal after biofilm and run;
(4) out of service:
When certain group blodisc is out of service, emptying reactive tank after biofilm detachment in this group blodisc alternate intermittent operational process, idle running is dried rear out of service, according to described second group and all the other each biofilm mode biofilms again organizing blodiscs in described step (1) when restarting.
Beneficial effect of the present invention is: the method makes blodisc intermittent operation, by the adjustment of the alternate run and influent load that control blodisc in parallel, the rotating speed substituting blodisc controls, make the operation of blodisc only need adjust biofilm stage and normal operating phase two rotating speeds, run and control simply.Can to avoid in the sewage disposal of small towns in blodisc normal course of operation because of invariablenes turning speed occur because of slow the produced accessory problem of microbial film renewal speed, realize the steady running of blodisc, meet the present situation of small towns sewage disposal.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
The embodiment of the present invention provides a kind of blodisc process operation method processing small towns sewage, for the blodisc technique that small towns small-scale sewage disposal adopts parallel way to run, comprising:
(1) biofilm is started stage by stage:
All blodiscs are divided into many groups, can preferred number of units in parallel according to actual needs, often organize blodisc and be at least one, also can be multiple stage, open by group by the order sequenced, the working time that each blodisc that staggers starts, make each group of blodisc biofilm stage by stage successively; Wherein, first group of blodisc employing high loading, high-revolving biofilm mode have been run high loading and have been started biofilm fast, for ensure can steady running higher than blodisc when actual load at influent load, 1 ~ 1.5rpm rotating speed can be adopted to strengthen bioreactor, avoid occurring that biofilm is blocked up; Blodiscs of second group and all the other each groups start biofilm stages and adopt rotating speeds to be less than the slow speed of revolution of 1rpm, and the biofilm mode increasing flooding velocity gradually completes startup biofilm, and adjusts the normal operating condition of rotating speed to 1rpm ~ 2rpm gradually;
(2) standard state is run:
Each group of blodisc enters normal operating phase after completing and starting biofilm, makes each group of blodisc keep water distribution uniformity state, all keeps the normal operating condition of 1rpm ~ 2rpm, and each group blodisc all can enter alternate intermittent when there is running status exception and run;
(3) alternate intermittent runs:
Each group of blodisc alternately enters intermittent operation according to boot sequence, and wherein, the first group of blodisc started at first enters intermittent operation at first, and each group blodisc successively enters alternate intermittent running status by boot sequence later; The intermittent operation of each group of blodisc is: make each group of blodisc stop water inlet, keep the normal speed of 1rpm ~ 2rpm normally to run until microbial film self falling, afterwards according in step (1) described second group and all the other respectively the biofilm mode of group blodiscs again recover normal after biofilm and run;
(4) out of service:
When certain group blodisc is out of service, can in this group blodisc alternate intermittent operational process emptying reactive tank after biofilm detachment, idle running is dried rear out of service, respectively can organize the biofilm mode biofilm again of blodisc when restarting according to second group in step (1) and all the other.Preferably, in this step out of service, after each group blodisc is out of service, dry after biofilm detachment.
In the normal operating procedure of step (2) of above-mentioned operation method, if a certain group of blodisc occurs laying particular stress in non-start up order in advance, microbial film renewal speed is slow or white thread fungus problem, makes this group blodisc enter the alternate intermittent operation phase in advance.
Operation method of the present invention, makes blodisc in parallel according to flooding quantity and influent load, and in batches through the alternate run of above four-stage, after periodicity adjustment blodisc biofilm, the homogeneity of degree and biofilm, improves biomembranous renewal efficiency.This operation method can utilize the alternate run of blodisc and influent load to control, and when meeting blodisc water outlet, can ensure that blodisc long-term stability is run.
Below in conjunction with specific embodiment, method of the present invention is described further.
Blodisc technique of the present invention is used for small towns sanitary sewage disposal, and this operation method comprises startup biofilm stage, normal operating phase, alternate intermittent operation phase, operation-stopping stage stage by stage.Blodisc in parallel is according to flooding quantity and influent load, and in batches through the alternate run of above four-stage, each stage of this operation method is specific as follows:
(1) biofilm is started stage by stage:
Because sewage disposal general water concentration in small towns is low, the startup biofilm stage of blodisc can open (often group can comprise one or more blodisc) by group, biofilm stage by stage, the working time that each blodisc that staggers starts.The startup of first group of blodisc, adopts high loading rapid biofilm, for ensure can steady running higher than blodisc when actual load at influent load, 1rpm ~ 1.5rpm rotating speed can be adopted to strengthen bioreactor, avoid occurring that biofilm is blocked up.First group of blodisc enters normal operating condition after completing and starting biofilm, rotating speed is transferred to the running status of 1rpm ~ 2rpm normal speed, and keeps this stabilization of speed to run.Second group of blodisc startup biofilm stage adopts rotating speed to be less than the rotating speed of 1rpm, increases flooding velocity gradually and completes startup biofilm, and adjusts rotating speed gradually to 1rpm ~ 2rpm normal operating condition.All the other blodiscs are opened stage by stage according to the biofilm mode of second group of rotating disk.As treatment scale is comparatively large, influent load is higher starts biofilm can adopt point batch initiation mode according to actual flooded condition stage by stage, starts biofilm stage by stage.
(2) normally run:
Blodisc enters normal operating phase after completing and starting biofilm, make each group of blodisc keep water distribution uniformity, keep the normal operating condition of 1rpm ~ 2rpm normal speed, each group of blodisc all can enter alternate run when occurring that blodisc is laid particular stress on, microbial film renewal speed is slow or the running status such as white thread fungus is abnormal, observe stability and the biofilm situation of blodisc operation, as occurred, can according to boot sequence, grouping enters the alternate intermittent operation phase.
(3) alternate intermittent runs:
Because first group of blodisc is in heavy-duty service state from startup optimization always, when the blodisc of required startup optimization all completes after biofilm enters normal operation, the blodisc of first group enters the alternate run stage at first, blodisc is stopped water inlet, this group blodisc rotating speed is made normally to run until microbial film self falling at 1rpm ~ 2rpm, again recover normal operation after biofilm according to the biofilm mode of second group of blodisc described in (1), each group successively enters alternate intermittent running status in order later.
(4) out of service:
When blodisc needs maintenance, maintenance, influent load and flooding quantity obviously to occur reducing with seasonal variation and needs to stop blodisc running, can in blodisc alternate intermittent operational process emptying reactive tank after biofilm detachment, idle running is dried rear out of service, can according to the biofilm mode biofilm again of second group of blodisc described in described step (1) when restarting.
Operation stage by stage in described operation method stage (1), the startup quantity of each stage blodisc need be determined according to flooding quantity and influent load, adopt alternate intermittent to run, at least adopt two stages, and for the ease of management, the stage adopted is no more than four.
Standard state in above-mentioned operation method stage (2) is run, and occurs in advance laying particular stress on, the slow or white thread fungus problem of microbial film renewal speed need enter the alternate intermittent operation phase in advance when a certain group in non-start up order.
Alternate intermittent in above-mentioned operation method stage (3) runs, and because first group of blodisc is in heavy-duty service from the startup biofilm stage always, need observe running condition at any time, as occurred, running status need enter the alternate run stage extremely in advance.
Embodiment one
Designing Sewage Treatment Plant treatment capacity is am
3/ d, actual treatment amount is bm
3/ d, separate unit blodisc treatment capacity cm
3/ d, as a/c=3,2c<b<a, point 3 batches of operations, often organize a rotating disk, and 1. blodisc numbering is respectively, 2., 3., operation method is as follows:
(1) the biofilm stage is started stage by stage: first open 1. number blodisc, under high-load condition, start biofilm with the rotating speed of 1 ~ 1.5rpm, after 1. a number blodisc completes biofilm, open 2. number blodisc.2. number blodisc improves flooding velocity gradually with the rotating speed being less than 1rpm, after startup biofilm completes, rotating speed is brought up to the normal speed of 1 ~ 2rpm, and keeps permanent rotating speed to run.2. number blodisc completes to start and to open 3. number blodisc after biofilm and according to the startup biofilm mode biofilm of 2. number blodisc.
(2) normally run: 1., 2., after 3. three blodiscs all complete and start biofilm, keep three blodisc water distribution uniformities, observing stability, biofilm thickness, white thread fungus etc. that blodisc runs, entering the alternate intermittent operation phase when there is blodisc fluctuation of service.
(3) alternate intermittent runs: 1., 2., 3. three blodiscs by (1) startup between sequence alternate enter the intermittent operation stage, 1. number blodisc keeps 1rpm ~ 2rpm rotating speed normally to run after stopping water inlet, according to the starting method biofilm of 2. number blodisc in (1) after microbial film self falling, 2., 3. number blodisc adopt the operation scheme of 1. number blodisc to hocket intermittent operation in order.
(4) out of service: a certain blodisc need or can long-time out of service time, after the biofilm detachment in the stage (3), emptying reactive tank, idle running is dried rear out of service.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (6)
1. process a blodisc process operation method for small towns sewage, it is characterized in that, for the blodisc technique that small towns small-scale sewage disposal adopts parallel way to run, comprising:
(1) biofilm is started stage by stage:
All blodiscs are divided into many groups, open by group by the order sequenced, the working time that each group of blodisc of staggering starts, make each group of blodisc biofilm stage by stage successively, wherein, first group of blodisc employing high loading, high-revolving biofilm mode have run startup biofilm; Blodiscs of second group and all the other each groups adopt the slow speed of revolution, increase the biofilm mode of flooding velocity has gradually run startup biofilm;
(2) normally run:
Each group of blodisc enters normal operating condition after completing and starting biofilm, makes each group of blodisc keep water distribution uniformity, normal speed running status, allows each group of blodisc to enter alternate intermittent when there is running status exception and runs;
(3) alternate intermittent runs:
Each group of blodisc alternately enters intermittent operation according to boot sequence, and wherein, the first group of blodisc started at first enters intermittent operation at first, and all the other are respectively organized blodisc and successively enter alternate intermittent running status by boot sequence; Each group of blodisc enters intermittent operation and is: make each group of blodisc stop water inlet, and keep normal speed to run until microbial film self falling, afterwards by this group blodisc according in step (1) described second group and all the other respectively the biofilm mode of group blodiscs again recover normal after biofilm and run;
(4) out of service:
When certain group blodisc is out of service, emptying reactive tank after biofilm detachment in this group blodisc alternate intermittent operational process, idle running is dried rear out of service, according to described second group and all the other each biofilm mode biofilms again organizing blodiscs in described step (1) when restarting.
2. a kind of blodisc process operation method processing small towns sewage according to claim 1, is characterized in that, described blodisc of often organizing is at least one.
3. a kind of blodisc process operation method processing small towns sewage according to claim 1 and 2, is characterized in that, in described step (1), the high rotating speed of first group of blodisc employing is the rotating speed of 1rpm ~ 1.5rpm;
Second group and all the other slow speed of revolution that respectively group blodiscs adopt are the rotating speed being less than 1rpm.
4. a kind of blodisc operation method processing small towns sewage according to claim 1 and 2, is characterized in that, in described step (2), (3), the normal speed of each group blodisc is 1rpm ~ 2rpm.
5. a kind of blodisc process operation method processing small towns sewage according to claim 1 and 2, it is characterized in that, also comprise: during described step (2) is normally run, if a certain group of blodisc occurs laying particular stress in non-start up order in advance, microbial film renewal speed is slow or white thread fungus problem, makes this group blodisc enter alternate intermittent running status in advance.
6. a kind of blodisc process operation method processing small towns sewage according to claim 1 and 2, is characterized in that, in described step out of service, after each group blodisc is out of service, dries after biofilm detachment.
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| CN201510618185.7A CN105084526B (en) | 2015-09-24 | 2015-09-24 | A kind of biological rotating disk process operation method for the treatment of small towns sewage |
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| CN201510618185.7A CN105084526B (en) | 2015-09-24 | 2015-09-24 | A kind of biological rotating disk process operation method for the treatment of small towns sewage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106745687A (en) * | 2016-12-16 | 2017-05-31 | 北京桑德环境工程有限公司 | The progress control method of the biological rotating disk technique for the treatment of underload small towns sewage |
| CN107543520A (en) * | 2017-08-18 | 2018-01-05 | 桑德集团有限公司 | A kind of biological rotating disk biofilm method for measuring thickness |
| CN109179645A (en) * | 2018-09-26 | 2019-01-11 | 许伟雄 | Composite rotating bio-disc processing unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106745687A (en) * | 2016-12-16 | 2017-05-31 | 北京桑德环境工程有限公司 | The progress control method of the biological rotating disk technique for the treatment of underload small towns sewage |
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| CN109179645A (en) * | 2018-09-26 | 2019-01-11 | 许伟雄 | Composite rotating bio-disc processing unit |
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