CN207276452U - The device for improving municipal sludge dewatering is reacted by microbial lytic - Google Patents
The device for improving municipal sludge dewatering is reacted by microbial lytic Download PDFInfo
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Abstract
It the utility model is related to a kind of device for being reacted by microbial lytic and improving municipal sludge dewatering, described device includes retort, control room, oxygen tank and mechanical dehydration machine, agitating device and heater are provided with the retort, it is described to stir the top for being arranged on retort, agitating device makes sludge and phagocytosis type bacterial solution are sufficiently mixed in retort close to reaction pot bottom；The heater is arranged on reaction pot bottom, and making can be in certain temperature range inside retort；The retort front end is provided with sludge inlet, is connected with sludge concentration tank sludge outlet before；The rear end of the retort is provided with sludge outlet, is connected with mechanical dehydration machine sludge inlet afterwards；The retort front end is additionally provided with bacterium solution entrance, is connected with bacterium solution feeding machine before；The oxygen outlet of the oxygen tank is connected with retort, to adjust dissolved oxygen；The mechanical dehydration machine, the mechanical dehydration carried out for sludge after processing is opened after receiving signal.
Description
Technical field
The present invention relates to a kind of device, and in particular to a kind of reacted by microbial lytic improves municipal sludge dewatering
Device, belong to municipal wastewater processing technology field.
Background technology
In recent years, with China's expanding economy and the quickening of urbanization process, the yield of municipal sewage and processing
Amount increases year by year, so as to cause the excess sludge production rapid growth of sewage treatment plant's association.The processing disposal of sludge is current
As a global society and environmental problem.
The excess sludge water content that sewage treatment plant produces is typically up to more than 95%, and sludge moisture content is high and is not easy to be dehydrated dirts
Substantial amounts of intracellular water with reference to shipwreck with being mechanically released in mud.At present, simple and mechanical press filtration sludge takes off
Moisture percentage in sewage sludge can only be dropped to 80% or so by water technology, cause specific resistance to filtration expense to account for the total expense of whole sewage treatment plant
20% ~ 45%.Existing physical chemistry mud decrement preconditioning technique mainly includes supercritical ultrasonics technology and chemical agent conditioning method
Cavitation crush cell wall Deng, supercritical ultrasonics technology by ultrasonic wave, discharge intracellular contained component and cytoplasm so as to
Realize mud decrement.Traditional chemical conditioning method often uses PAC, FeCl3Promoted with medicaments such as PAM by charge neutrality bridging action
Mud granule flocculation is set to improve dehydration property.But physics mode energy consumption is higher, the chemical agent put into chemical mode
Secondary pollution can be caused, influences the safe handling disposal of follow-up sludge.Therefore, there is an urgent need to develop a kind of science, efficiently and ring
The sludge dewatering decrement method of border close friend.
Relative to preceding two classes sludge reduction method, rigid membrane structure that the biological treatment of sludge cracks block cell
Extent of the destruction it is larger, be conducive to release, the raising of dewatering performance of sludge of sludge easily biological-degradable intracellular organic matter.Pass through at the same time
The biological chain extension system of microorganism predation can reinforcement sludge material and energy decrement jump.Therefore, the biology decrement skill of sludge
Art has the characteristics that decrement is efficient, energy consumption is low, non-secondary pollution as a kind of ecological engineering technology, of increasing concern.
Phagocytosis type bacterium is a kind of to prey on the small-sized parasitics bacterium that host strain is made a living, and can damage cells wall, penetrates place
Up to the present chief cell, cracks most of sections, the gramnegative bacterium belonged to and part gram-positive bacterium, section of various countries
Scholar is found that from soil, effluent sewerage, river water, ocean, root system of plant and the mankind and mammal faeces respectively
This quasi-microorganism.Phagocytosis type bacterium is in popularity, the cracking high efficiency to host cell and dependence existing for nature and right
It can effectively destroy cell membrane to the non-specific indication of the selection of host strain, influence sludge flco composition and structure, therefore improving
There are huge applications potentiality on dewatering performance of sludge.But using the process of phagocytosis type bacterial treatment municipal sludge for growth
Condition is more demanding, if cannot reach the growing environment of optimal phagocytosis type bacterium, its high-performance bio splitting action can not be complete
Embody.It is, therefore, desirable to provide a kind of device and method that municipal sludge dewatering is improved using phagocytosis type bacterium, to meet dirt
Mud processing disposal needs.
The content of the invention
The present invention is exactly for technical problem present in existing process, there is provided a kind of reacted by microbial lytic is improved
The device of municipal sludge dewatering, the technical solution fully take into account phagocytosis type bacterium improve dewatering performance of sludge when it is various because
The influence of element, the program are a kind of suitable device and methods that sludge cell cracking is carried out using microorganism i.e. phagocytosis type bacterium.
This method does not bring secondary pollution, can meet that dewatered sludge moisture content drops without using chemical floc or other any medicaments
Sludge to less than 60% cracks demand, can effectively solve the problems, such as that moisture content of the cake is high, while can also reduce cracking pretreatment expense
With reduction joint disposal cost.
To achieve these goals, technical scheme is as follows, and a kind of reacted by microbial lytic improves municipal administration
The device of dewatering performance of sludge, it is characterised in that described device includes retort, control room, oxygen tank and mechanical dehydration machine,
Agitating device and heater are provided with the retort,
Described to stir the top for being arranged on retort, agitating device makes sludge and phagocytosis type bacterium close to reaction pot bottom
Bacterium solution is sufficiently mixed in retort；The heater is arranged on reaction pot bottom, and making can be in certain temperature inside retort
In the range of；The retort front end is provided with sludge inlet, is connected with sludge concentration tank sludge outlet before；The retort
Rear end be provided with sludge outlet, be connected with mechanical dehydration machine sludge inlet afterwards；
The retort front end is additionally provided with bacterium solution entrance, is connected with bacterium solution feeding machine before；
The oxygen outlet of the oxygen tank is connected with retort, to adjust dissolved oxygen；
The mechanical dehydration machine, the mechanical dehydration carried out for sludge after processing is opened after receiving signal.
As a modification of the present invention, described device further includes phagocytosis type bacterial solution pond, and sludge concentration tank, further includes
With the sludge that the sludge inlet is connected into mud conveyance conduit, sludge pump is installed thereon, signal unlatching is received, protects
Card pending mud is delivered to retort；
The sludge mud extraction conveyance conduit being connected with the sludge outlet, is provided with sludge pump thereon, receives signal unlatching, protects
Sludge is delivered to mechanical dehydration machine after card processing；
The bacterium solution feeding machine being connected with the bacterium solution entrance, it is thin to receive the phagocytosis type that signal unlatching will configure in bacterium solution pond
Bacterium bacterium solution is delivered to retort.
As a modification of the present invention, described device further includes sludge detection sensor and the first industrial control unit (ICU)；
The sludge detection sensor is arranged in retort, and sludge detection sensor includes temperature measuring probe, dissolving
Oxygen measure probe and pH measure probes, for measuring the temperature of sludge, dissolved oxygen and pH value in retort；
First industrial control unit (ICU) is arranged in switch board, if water temperature is less than 15 DEG C, the control of the first industrial control unit (ICU) adds
Heat engine works, and water temperature is increased to 15-35 DEG C；If dissolved oxygen is less than 1mg/L, the first industrial control unit (ICU) adjusts oxygen tank outlet
The aperture of valve, adjusts dissolved oxygen to 1-10mg/L, first industrial control unit (ICU) and is connected by Industrial Ethernet, by an industry
Embedded host centralized Control;Oxygen tank air outlet valve, heater and sludge sensor respectively with the first industrial control unit (ICU) power information
Connection.
As a modification of the present invention, described device further includes sludge capillary water absorbing time detection sensor and the second work
Industry controller,
The sludge capillary water absorbing time detection sensor is used for the capillary water absorbing time for measuring sludge in retort, reaction
Bacterium solution valve, machinery after sludge pump, bacterium solution feeding machine on mud extraction conveyance conduit after sludge pump, retort on tank advance mud conveyance conduit
Dewaterer and sludge capillary water absorbing time detection sensor are connected with the second industrial control unit (ICU) power information respectively；
Second industrial control unit (ICU) is arranged in switch board, and sludge capillary water absorbing time detection sensor is in retort
The capillary water absorbing time of sludge carries out the real time measure, if the capillary water absorbing time measured value of sludge was continuing to decline in retort
, there is flex point in Cheng Zhong, and sludge pump is opened on mud extraction conveyance conduit after the second industrial control unit (ICU) control retort, while starts machinery
Dewaterer.After sludge all by mechanical dehydration machine processing after, the second industrial control unit (ICU) control retort advance mud conveyance conduit
Upper sludge pump is opened, and carries out the Treatment of Sludge of next batch.
Municipal sludge dewatering method is improved by biological splitting action, the described method comprises the following steps：
1）Prepared by phagocytosis type bacterial solution, cultured phagocytosis type bacterium is centrifuged and is resuspended, makes its concentration range
103—106Pfu/mL uses the phagocytosis type bacterium solid-state microbial inoculum prepared to make its concentration range 10 after activating3—
106pfu/mL；
2）Sludge is discharged into retort and is stirred pretreatment, and the second industrial control unit (ICU) is controlled into sludge on mud conveyance conduit
The unlatching of pump and the startup of bacterium solution feeding machine, thickened sludge are mixed and stirred with phagocytosis type bacterium in retort is entered
Mix, mixing speed 30-150r/min, it is 10 to make ultimate density of the phagocytosis type bacterium in sludge2—105pfu/mL；
3）Carry out cracking processing in retort, the sludge detection sensor in retort can be by sludge temperature, dissolved oxygen
The first industrial control unit (ICU) is transmitted to the result of pH tests, and the first industrial control unit (ICU) can be according to preliminary design environment to sludge temperature, molten
Solve oxygen and be automatically adjusted simultaneously moment display sludge pH, if air outlet valve water temperature is less than 15 DEG C, the control of the first industrial control unit (ICU) adds
Heat engine works, and water temperature is increased to 15-35 DEG C；If dissolved oxygen is less than 1mg/L, the first industrial control unit (ICU) adjusts oxygen tank outlet
The aperture of valve, adjusts dissolved oxygen to 1-10mg/L；
4）Start dewaterer, sludge capillary water absorbing time detection sensor to the capillary water absorbing time of sludge in retort into
Row the real time measure.Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and a spacing is permeated on absorbent filter
From the required time, it measures numerical value and can constantly reduce until flex point occur and start to continue rising under normal circumstances, if
There is flex point, the second industrial control unit (ICU) is with electricity during continuous decrease in the capillary water absorbing time measured value of sludge in retort
Sludge pump is opened on mud extraction conveyance conduit after signal control retort, while starts mechanical dewaterer, and sludge enters mechanical dehydration
Stage.
5）Repeat the（2）-（4）Step.
Relative to the prior art, the invention has the advantages that, 1）The technical solution improves city using biological splitting action
The apparatus structure of political affairs dewatering performance of sludge is simple, has higher treatment effect, temperature control system is equipped with reactor, from
Local climate differentia influence, at the same from seasonal variations influence, can under northern cryogenic conditions normal operation；
2）Sludge detection sensor and industrial control unit (ICU) are equipped with retort, it is phagocytosis type bacterium that the moment, which is kept in retort,
Environment needed for the most suitable growth environment and optimal lytic effect, makes that phagocytosis type Survival probability of bacteria is maintained and treatment effect reaches
Stablize.
3）The use of sludge capillary water absorbing time detection sensor and industrial control unit (ICU) makes this method simple and automation journey
Degree is high.It can be applied to secondary settling tank, sludge concentration tank or the reformative sludge concentration of conventional municipal sewage treatment plant biological treatment
Chi Zhong, while the beginning and end of each flow is automatically controlled by industrial control unit (ICU), artificial demand for control is small, can carry out continuous anti-
Should.
4）Sludge is handled using single tube into mud mode, general only needs are equipped with a small number of dredge pumps, thus invest, safeguard, run
Expense is relatively low, easy to manage and control, effectively saves operating cost.
5）The program does not produce secondary pollution, and ecology is high with wholesomeness, the change used more with current sewage treatment plant
Flocculant or chemical regulator is learned to compare, phagocytosis type bacterium used in the present invention after the task of cracking host cell is completed,
It can automatically wither away because hungry, therefore have no toxic side effect to publilc health, also provide safeguard for the green processing disposal of sludge.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
In figure：1st, phagocytosis type bacterial solution pond；2nd, sludge concentration tank；3rd, retort；4th, oxygen tank；5th, mechanical dehydration machine；
6th, agitating device；7th, heater；8th, sludge capillary water absorbing time detection sensor；9th, the second industrial control unit (ICU)；10th, sludge detects
Sensor；11st, the first industrial control unit (ICU)；12nd, control room；13rd, bacterium solution feeding machine；14th, sludge pump I；15th, sludge pump II；16th, oxygen
Gas tank air outlet valve.
Embodiment：
In order to deepen the understanding of the present invention, the present embodiment is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：A kind of that the device for improving municipal sludge dewatering is reacted by microbial lytic referring to Fig. 1, it is special
Sign is that described device includes retort 3, control room 12, oxygen tank 4 and mechanical dehydration machine 5, is provided with the retort
Agitating device 6 and heater 7, described stir are arranged on the top of retort, agitating device close to reaction pot bottom, make sludge and
Phagocytosis type bacterial solution is sufficiently mixed in retort；The heater is arranged on reaction pot bottom, and making can inside retort
In certain temperature range；The retort front end is provided with sludge inlet, is connected with sludge concentration tank sludge outlet before；
The rear end of the retort is provided with sludge outlet, is connected with mechanical dehydration machine sludge inlet afterwards；The retort front end
Bacterium solution entrance is additionally provided with, is connected with bacterium solution feeding machine before；The oxygen outlet of the oxygen tank is connected with retort, to
Adjust dissolved oxygen；The mechanical dehydration machine, the mechanical dehydration carried out for sludge after processing is opened after receiving signal；Described device
Phagocytosis type bacterial solution pond 1 is further included, sludge concentration tank 2, the sludge pump I 14 being connected with the sludge inlet, receives signal and open
Open and pending mud is delivered to retort；The sludge pump II 15 being connected with the sludge outlet, receives signal and opens and will handle
Sludge is delivered to mechanical dehydration machine afterwards；The bacterium solution feeding machine 13 being connected with the bacterium solution entrance, receives signal and opens bacterium solution pond
The middle phagocytosis type bacterial solution configured is delivered to retort 3, and described device further includes 10 and first work of sludge detection sensor
Industry controller 11；
The sludge detection sensor is arranged in retort, and sludge detection sensor includes temperature measuring probe, dissolving
Oxygen measure probe and pH measure probes, for measuring the temperature of sludge, dissolved oxygen and pH value in retort；First Industry Control
Device, first industrial control unit (ICU) are arranged in switch board, if water temperature is less than 15 DEG C, the first industrial control unit (ICU) control heater work
Make, water temperature is increased to 15-35 DEG C；If dissolved oxygen is less than 1mg/L, the first industrial control unit (ICU) adjusts opening for oxygen tank air outlet valve
Degree, adjusts dissolved oxygen to 1-10mg/L, the industrial control unit (ICU) and is connected by Industrial Ethernet, by an industrial embedded host
Centralized Control.Oxygen tank air outlet valve 16, heater 7 and sludge sensor 10 connect with 11 power information of the first industrial control unit (ICU) respectively
Connect.Described device further includes sludge capillary water absorbing time detection sensor and 8 second industrial control unit (ICU)s 9, and the sludge capillary is inhaled
Water time detecting sensor is used to measuring the capillary water absorbing time of sludge in retort, sludge on retort advance mud conveyance conduit
Bacterium solution valve, mechanical dehydration machine and sludge capillary are inhaled after sludge pump 15, bacterium solution feeding machine on mud extraction conveyance conduit after pump 14, retort
Water time detecting sensor is connected with 9 power information of the second industrial control unit (ICU) respectively；Second industrial control unit (ICU) 9 is arranged on
In switch board, sludge capillary water absorbing time detection sensor carries out the real time measure to the capillary water absorbing time of sludge in retort,
If the capillary water absorbing time of sludge is during continuous decrease in retort, occur flex point suddenly, and continue to increase to higher than before
Once measure numerical value, sludge on mud extraction conveyance conduit after sludge pump I 14, retort before the second industrial control unit (ICU) 9 control retort
After the opening and bacterium solution feeding machine of pump, the startup of mechanical dehydration machine, the sludge dewatering treatment of next batch is carried out, in processing
Need to be supplied oxygen by input channel into retort.The technical solution fully takes into account phagocytosis type bacterium and improves sludge dewatering
The influence of various factors during performance, the program are that one kind is adapted to carry out sludge cell cracking using microorganism i.e. phagocytosis type bacterium
Device and method.This method does not bring secondary pollution, can meet that dewatered sludge moisture content drops to without using chemical floc
Less than 60% sludge cracking demand, can effectively solve the problems, such as that moisture content of the cake is high, while can also reduce cracking pretreatment expense
With reduction joint disposal cost.
Embodiment 2：Referring to Fig. 1, municipal sludge dewatering method is improved by biological splitting action, the described method includes
Following steps：
1）Prepared by phagocytosis type bacterial solution, cultured phagocytosis type bacterium is centrifuged and is resuspended, makes its concentration range
103—106Pfu/mL uses the phagocytosis type bacterium solid-state microbial inoculum prepared to make its concentration range 10 after activating3—
106pfu/mL；
2）Sludge is discharged into retort and is stirred pretreatment, and the second industrial control unit (ICU) is controlled into sludge on mud conveyance conduit
The unlatching of pump and the startup of bacterium solution feeding machine, thickened sludge are mixed and stirred with phagocytosis type bacterium in retort is entered
Mix, mixing speed 30-150r/min, it is 10 to make ultimate density of the phagocytosis type bacterium in sludge2—105pfu/mL；
3）Carry out cracking processing in retort, the sludge detection sensor in retort can be by sludge temperature, dissolved oxygen
The first industrial control unit (ICU) is transmitted to the result of pH tests, and the first industrial control unit (ICU) can be according to preliminary design environment to sludge temperature, molten
Solve oxygen and be automatically adjusted simultaneously moment display sludge pH, if air outlet valve water temperature is less than 15 DEG C, the control of the first industrial control unit (ICU) adds
Heat engine works, and water temperature is increased to 15-35 DEG C；If dissolved oxygen is less than 1mg/L, the first industrial control unit (ICU) adjusts oxygen tank outlet
The aperture of valve, adjusts dissolved oxygen to 1-10mg/L；
4）Start dewaterer, sludge capillary water absorbing time detection sensor to the capillary water absorbing time of sludge in retort into
Row the real time measure sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance is permeated on absorbent filter
The required time, under normal circumstances its measure numerical value can constantly reduce until occur flex point and start continue rising, if instead
The capillary water absorbing time measured value of sludge in tank is answered flex point occur, the second industrial control unit (ICU) is with telecommunications during continuous decrease
Sludge pump is opened and the startup of mechanical dehydration machine on number control mud extraction conveyance conduit, and sludge enters mechanical dewatering stage.
5）Repeat the（2）-（4）Step.
Application Example 1：
Referring to Fig. 1, sludge is handled on a small scale in certain sewage treatment plant using the present apparatus and method, the sewage disposal
Factory uses SBR techniques, and processing sludge comes from SBR ponds.
（1）The preparation of phagocytosis type bacterium liquid
Prepare phagocytosis type bacterium liquid in advance, phagocytosis type bacterial concentration is up to 10 in phagocytosis type bacterial solution3The pfu/mL orders of magnitude.
（2）The pretreatment of sludge
Sludge measures 100L, and sludge passes through natural subsidence, removes a layer sludge, its moisture content basically reaches 90%, and sludge pH is surveyed
It is 6.40 to determine result, and sludge temperature measuring is 22 DEG C, is stirred evenly by entering into dredge pump in retort.
（3）Phagocytosis type bacterial solution adds；
Small-scale processing is divided into experimental group and control group.
All control groups and the sludge of experimental group take the sludge of same batch pre-treatment.The thick sludge of lower floor after precipitation
Handled by two identical devices.
Control group：Processing sludge volume is 100L, adds 10L pure water, is uniformly mixed.
Experimental group：Processing sludge volume is 100L, adds phagocytosis type bacterial solution 10L, and its concentration reaches 103pfu/
ML, is uniformly mixed.
Experimental group and control group all keep the temperature at 10-40 DEG C by the first industrial control unit (ICU), are controlled by the first industry
Device processed makes dissolved oxygen be maintained at 1-10mg/L, pH value is maintained at 5-8 by the first industrial control unit (ICU), handles 24h, every 6h,
The moisture content of mud cake, records sludge capillary water absorbing time detection sensor display data after measure dewaterer final process.
（4）Testing result：
Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance institute is permeated on absorbent filter
The time needed, addition phagocytosis type bacterial concentration reaches 10 in sludge2Pfu/mL, can make sludge capillary water absorbing at 12h and 24h
Time reduces by 25% and 30% respectively；Sludge filter cake moisture content after 24h biologies cracking processing is reduced to 58% from 70%, sludge body
Product averagely reduces 28%.Thus provable sludge can significantly improve sludge by processing method and processing device proposed by the present invention
Dewatering, to reach mud decrement purpose.
Application Example 2：
Referring to Fig. 1, sludge is handled on a small scale in certain sewage treatment plant using the present apparatus and method, the sewage disposal
Factory uses SBR techniques, and processing sludge comes from SBR ponds.
（1）The preparation of phagocytosis type bacterium liquid
Prepare phagocytosis type bacterium liquid in advance, phagocytosis type bacterial concentration is up to 10 in phagocytosis type bacterial solution4The pfu/mL orders of magnitude.
（2）The pretreatment of sludge
Sludge measures 100L, and sludge passes through natural subsidence, removes a layer sludge, its moisture content basically reaches 97%, and sludge pH is surveyed
It is 6.10 to determine result, and sludge temperature measuring is 15 DEG C, is stirred evenly by entering into dredge pump in retort.
（3）Phagocytosis type bacterial solution adds；
Small-scale processing is divided into experimental group and control group.
All control groups and the sludge of experimental group take the sludge of same batch pre-treatment.The thick sludge of lower floor after precipitation
Handled by two identical devices.
Control group：Processing sludge volume is 100L, adds 10L pure water, is uniformly mixed.
Experimental group：Processing sludge volume is 100L, adds phagocytosis type bacterial solution 10L, and its concentration reaches 103pfu/
ML, is uniformly mixed.
Experimental group and control group all keep the temperature at 10-40 DEG C by the first industrial control unit (ICU), are controlled by the first industry
Device processed makes dissolved oxygen be maintained at 1-10mg/L, pH value is maintained at 5-8 by the first industrial control unit (ICU), handles 24h, every 6h,
The moisture content of mud cake, records sludge capillary water absorbing time detection sensor display data after measure dewaterer final process.
（4）Testing result：
Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance institute is permeated on absorbent filter
The time needed, addition phagocytosis type bacterial concentration reaches 10 in sludge3Pfu/mL, can make sludge capillary water absorbing at 12h and 24h
Time reduces by 21% and 36% respectively；Sludge filter cake moisture content after 24h biologies cracking processing is reduced to 55% from 68%, sludge body
Product averagely reduces 20%.Thus provable sludge can significantly improve sludge by processing method and processing device proposed by the present invention
Dewatering, to reach mud decrement purpose.
Application Example 3：
Referring to Fig. 1, sludge is handled on a small scale in certain sewage treatment plant using the present apparatus and method, the sewage disposal
Factory uses SBR techniques, and processing sludge comes from SBR ponds.
（1）The preparation of phagocytosis type bacterium liquid
Prepare phagocytosis type bacterium liquid in advance, phagocytosis type bacterial concentration is up to 10 in phagocytosis type bacterial solution5The pfu/mL orders of magnitude.
（2）The pretreatment of sludge
Sludge measures 100L, and sludge passes through natural subsidence, removes a layer sludge, its moisture content basically reaches 95%, and sludge pH is surveyed
It is 6.7 to determine result, and sludge temperature measuring is 28 DEG C, is stirred evenly by entering into dredge pump in retort.
（3）Phagocytosis type bacterial solution adds；
Small-scale processing is divided into experimental group and control group.
All control groups and the sludge of experimental group take the sludge of same batch pre-treatment.The thick sludge of lower floor after precipitation
Handled by two identical devices.
Control group：Processing sludge volume is 100L, adds 10L pure water, is uniformly mixed.
Experimental group：Processing sludge volume is 100L, adds phagocytosis type bacterial solution 10L, and its concentration reaches 104pfu/
ML, is uniformly mixed.
Experimental group and control group all keep the temperature at 10-40 DEG C by the first industrial control unit (ICU), are controlled by the first industry
Device processed makes dissolved oxygen be maintained at 1-10mg/L, pH value is maintained at 5-8 by the first industrial control unit (ICU), handles 24h, every 6h,
The moisture content of mud cake, records sludge capillary water absorbing time detection sensor display data after measure dewaterer final process.
（4）Testing result：
Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance institute is permeated on absorbent filter
The time needed, addition phagocytosis type bacterial concentration reaches 10 in sludge3Pfu/mL, can make sludge capillary water absorbing at 12h and 24h
Time reduces by 26% and 32% respectively；Sludge filter cake moisture content after 24h biologies cracking processing is reduced to 59% from 72%, sludge body
Product averagely reduces 23%.Thus provable sludge can significantly improve sludge by processing method and processing device proposed by the present invention
Dewatering, to reach mud decrement purpose.
Application Example 4：
Referring to Fig. 1, sludge is handled on a small scale in certain sewage treatment plant using the present apparatus and method, the sewage disposal
Factory uses SBR techniques, and processing sludge comes from SBR ponds.
（1）The preparation of phagocytosis type bacterium liquid
Prepare phagocytosis type bacterium liquid in advance, phagocytosis type bacterial concentration is up to 10 in phagocytosis type bacterial solution6The pfu/mL orders of magnitude.
（2）The pretreatment of sludge
Sludge measures 100L, and sludge passes through natural subsidence, removes a layer sludge, its moisture content basically reaches 92%, and sludge pH is surveyed
It is 6.2 to determine result, and sludge temperature measuring is 30 DEG C, is stirred evenly by entering into dredge pump in retort.
（3）Phagocytosis type bacterial solution adds；
Small-scale processing is divided into experimental group and control group.
All control groups and the sludge of experimental group take the sludge of same batch pre-treatment.The thick sludge of lower floor after precipitation
Handled by two identical devices.
Control group：Processing sludge volume is 100L, adds 10L pure water, is uniformly mixed.
Experimental group：Processing sludge volume is 100L, adds phagocytosis type bacterial solution 10L, and its concentration reaches 105pfu/
ML, is uniformly mixed.
Experimental group and control group all keep the temperature at 10-40 DEG C by the first industrial control unit (ICU), are controlled by the first industry
Device processed makes dissolved oxygen be maintained at 1-10mg/L, pH value is maintained at 5-8 by the first industrial control unit (ICU), handles 24h, every 6h,
The moisture content of mud cake, records sludge capillary water absorbing time detection sensor display data after measure dewaterer final process.
（4）Testing result：
Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance institute is permeated on absorbent filter
The time needed, addition phagocytosis type bacterial concentration reaches 10 in sludge3Pfu/mL, can make sludge capillary water absorbing at 12h and 24h
Time reduces by 21% and 36% respectively；Sludge filter cake moisture content after 24h biologies cracking processing is reduced to 57% from 70%, sludge body
Product averagely reduces 21%.Thus provable sludge can significantly improve sludge by processing method and processing device proposed by the present invention
Dewatering, to reach mud decrement purpose.
Application Example 5：
Referring to Fig. 1, sludge is handled on a small scale in certain sewage treatment plant using the present apparatus and method, the sewage disposal
Factory uses CAST techniques, and processing sludge comes from sludge concentration tank.
（1）The preparation of phagocytosis type bacterium liquid
Prepare phagocytosis type bacterium liquid in advance, phagocytosis type bacterial concentration is up to 10 in phagocytosis type bacterial solution6The pfu/mL orders of magnitude.
（2）The pretreatment of sludge
Sludge measures 100L, and sludge passes through natural subsidence, removes a layer sludge, its moisture content basically reaches 92%, and sludge pH is surveyed
It is 6.7 to determine result, and sludge temperature measuring is 23 DEG C, is stirred evenly by entering into dredge pump in retort.
（3）Phagocytosis type bacterial solution adds；
Small-scale processing is divided into experimental group and control group.
All control groups and the sludge of experimental group take the sludge of same batch pre-treatment.The thick sludge of lower floor after precipitation
Handled by two identical devices.
Control group：Processing sludge volume is 100L, adds 10L pure water, is uniformly mixed.
Experimental group：Processing sludge volume is 100L, adds phagocytosis type bacterial solution 10L, and its concentration reaches 105pfu/
ML, is uniformly mixed.
Experimental group and control group all keep the temperature at 10-40 DEG C by the first industrial control unit (ICU), are controlled by the first industry
Device processed makes dissolved oxygen be maintained at 1-10mg/L, pH value is maintained at 5-8 by the first industrial control unit (ICU), handles 24h, every 6h,
The moisture content of mud cake, records sludge capillary water absorbing time detection sensor display data after measure dewaterer final process.
（4）Testing result：
Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance institute is permeated on absorbent filter
The time needed, addition phagocytosis type bacterial concentration reaches 10 in sludge3Pfu/mL, can make sludge capillary water absorbing at 12h and 24h
Time reduces by 20% and 32% respectively；Sludge filter cake moisture content after 24h biologies cracking processing is reduced to 60% from 75%, sludge body
Product averagely reduces 23%.Thus provable sludge can significantly improve sludge by processing method and processing device proposed by the present invention
Dewatering, to reach mud decrement purpose.
Application Example 6：
Referring to Fig. 1, sludge is handled on a small scale in certain sewage treatment plant using the present apparatus and method, the sewage disposal
Factory uses A2- O techniques, processing sludge come from secondary settling tank.
（1）The preparation of phagocytosis type bacterium liquid
Prepare phagocytosis type bacterium liquid in advance, phagocytosis type bacterial concentration is up to 10 in phagocytosis type bacterial solution6The pfu/mL orders of magnitude.
（2）The pretreatment of sludge
Sludge measures 100L, and sludge passes through natural subsidence, removes a layer sludge, its moisture content basically reaches 97%, and sludge pH is surveyed
It is 6.9 to determine result, and sludge temperature measuring is 28 DEG C, is stirred evenly by entering into dredge pump in retort.
（3）Phagocytosis type bacterial solution adds；
Small-scale processing is divided into experimental group and control group.
All control groups and the sludge of experimental group take the sludge of same batch pre-treatment.The thick sludge of lower floor after precipitation
Handled by two identical devices.
Control group：Processing sludge volume is 100L, adds 10L pure water, is uniformly mixed.
Experimental group：Processing sludge volume is 100L, adds phagocytosis type bacterial solution 10L, and its concentration reaches 105pfu/
ML, is uniformly mixed.
Experimental group and control group all keep the temperature at 10-40 DEG C by the first industrial control unit (ICU), are controlled by the first industry
Device processed makes dissolved oxygen be maintained at 1-10mg/L, pH value is maintained at 5-8 by the first industrial control unit (ICU), handles 24h, every 6h,
The moisture content of mud cake, records sludge capillary water absorbing time detection sensor display data after measure dewaterer final process.
（4）Testing result：
Sludge capillary water absorbing time is used to determine dewatering performance of sludge, refers to sludge and certain distance institute is permeated on absorbent filter
The time needed, addition phagocytosis type bacterial concentration reaches 10 in sludge3Pfu/mL, can make sludge capillary water absorbing at 12h and 24h
Time reduces by 25% and 39% respectively；Sludge filter cake moisture content after 24h biologies cracking processing is reduced to 64% from 72%, sludge body
Product averagely reduces 29%.Thus provable sludge can significantly improve sludge by processing method and processing device proposed by the present invention
Dewatering, to reach mud decrement purpose.
It should be noted that above-described embodiment, is not used for limiting protection scope of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or replacement each fall within the scope that the claims in the present invention are protected.
Claims (4)
1. a kind of react the device for improving municipal sludge dewatering by microbial lytic, it is characterised in that described device bag
Include
Retort, control room, oxygen tank and mechanical dehydration machine, are provided with agitating device and heater in the retort;
The agitating device is arranged on the top of retort, and agitating device makes sludge and phagocytosis type bacterium close to reaction pot bottom
Bacterium solution is sufficiently mixed in retort；The heater is arranged on reaction pot bottom, and making can be constant certain inside retort
In temperature range；The retort front end is provided with sludge inlet, is connected with sludge concentration tank sludge outlet before；It is described anti-
Answer the rear end of tank to be provided with sludge outlet, be connected with mechanical dehydration machine sludge inlet afterwards；
The retort front end is additionally provided with bacterium solution entrance, is connected with bacterium solution feeding machine before；
The oxygen outlet of the oxygen tank is connected with retort, to adjust dissolved oxygen；
The mechanical dehydration machine, is opened after receiving signal, the mechanical dehydration of sludge after being handled.
2. according to claim 1 react the device for improving municipal sludge dewatering, its feature by microbial lytic
It is, described device further includes phagocytosis type bacterial solution pond, and sludge concentration tank, further includes
With the sludge that the sludge inlet is connected into mud conveyance conduit, sludge pump is installed thereon, signal unlatching is received, ensures to treat
Processing sludge is delivered to retort；
The sludge mud extraction conveyance conduit being connected with the sludge outlet, is provided with sludge pump thereon, receives signal and opens, at guarantee
Sludge is delivered to mechanical dehydration machine after reason；
The bacterium solution feeding machine being connected with the bacterium solution entrance, receives signal unlatching, the phagocytosis type bacterium that will have been configured in bacterium solution pond
Bacterium solution is delivered to retort.
3. according to claim 2 react the device for improving municipal sludge dewatering, its feature by microbial lytic
It is, described device further includes sludge detection sensor and the first industrial control unit (ICU)；
The sludge detection sensor is arranged in retort, and sludge detection sensor includes temperature measuring probe, dissolved oxygen is surveyed
Fixed probe and pH measure probe, for measuring the temperature of sludge, dissolved oxygen and pH value in retort；
First industrial control unit (ICU), the industrial control unit (ICU) are arranged in switch board, if water temperature is less than 15 DEG C, the first industrial control unit (ICU)
Heater work is controlled, water temperature is increased to 15-35 DEG C；If dissolved oxygen is less than 1mg/L, the first industrial control unit (ICU) adjusts oxygen
The aperture of tank air outlet valve, adjusts dissolved oxygen to 1-10mg/L, first industrial control unit (ICU) is connected by Industrial Ethernet, by one
Platform industry embedded host centralized Control, oxygen tank air outlet valve, heater and sludge sensor respectively with the first industrial control unit (ICU)
Power information connects.
4. reacting the device for improving municipal sludge dewatering by microbial lytic according to Claims 2 or 3, it is special
Sign is that described device further includes sludge capillary water absorbing time detection sensor and the second industrial control unit (ICU),
The sludge capillary water absorbing time detection sensor is used to measuring the capillary water absorbing time of sludge in retort, before retort
Bacterium solution valve, mechanical dehydration after sludge pump, bacterium solution feeding machine on mud extraction conveyance conduit after sludge pump, retort on into mud conveyance conduit
Machine and sludge capillary water absorbing time detection sensor are connected with the second industrial control unit (ICU) power information respectively；
Second industrial control unit (ICU) is arranged in switch board, and sludge capillary water absorbing time detection sensor is to sludge in retort
Capillary water absorbing time carry out the real time measure, if the capillary water absorbing time of sludge is during continuous decrease in retort, suddenly
There is flex point, and continue to increase to higher than previous time measure numerical value, the second industrial control unit (ICU) control retort advance mud delivery pipe
On road after sludge pump, retort on mud extraction conveyance conduit the opening of sludge pump and control bacterium solution feeding machine after bacterium solution valve, machinery
The startup of dewaterer, carries out the sludge dewatering treatment of next batch.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107055999A (en) * | 2017-05-27 | 2017-08-18 | 杭州源茁环保科技有限公司 | The device and method for improving municipal sludge dewatering is reacted by microbial lytic |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107055999A (en) * | 2017-05-27 | 2017-08-18 | 杭州源茁环保科技有限公司 | The device and method for improving municipal sludge dewatering is reacted by microbial lytic |
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