CN109264957A - A kind of municipal sludge hole decrement preprocess method based on vacuum method - Google Patents
A kind of municipal sludge hole decrement preprocess method based on vacuum method Download PDFInfo
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- CN109264957A CN109264957A CN201811226742.0A CN201811226742A CN109264957A CN 109264957 A CN109264957 A CN 109264957A CN 201811226742 A CN201811226742 A CN 201811226742A CN 109264957 A CN109264957 A CN 109264957A
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- sludge
- chimney filter
- vacuum
- drainage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention provides a kind of municipal sludge hole decrement preprocess method based on vacuum method, including sets vertical drainage body, reserves binding wrench；It is laid with vacuum supervisor, chimney filter, vacuum supervisor and chimney filter quadrature arrangement, a chimney filter is set between every two rows vertical drainage body, chimney filter two sides are connected with adjacent reserved wrench binding respectively；2~3m sets activity drainage bag below earth's surface to earth's surface, and drainage bag exposes sludge face sufficient length and chimney filter is bound, and sets row's activity drainage bag every two rows of vertical drainage bodies, every chimney filter two sides are connect with close to row's activity drainage bag respectively.It is difficult that activity drainage bag of the present invention in sludge surface layer solves the problems, such as that surface layer whirl spraying equipment squeezes into bioactivator operation, treated, and moisture percentage in sewage sludge is down to 40~50%, solve the problems, such as that mechanical filling sludge efficiency is extremely low in sludge sump, sludge surface layer bearing capacity is obviously improved that treated sludge, reach small-sized machine requirement, mechanical work is carried out on sludge face.
Description
Technical field
The present invention relates to a kind of municipal sludge processing technology field, a kind of specific municipal sludge hole based on vacuum method
It is reduced preprocess method.
Background technique
Municipal sludge refers to municipal wastewater treatment plant generated solid-state castoff during handling waste water.Sludge it is aqueous
Amount is high, perishable, complicated component, not only contains the elements such as a large amount of organic matters, N, P, K, but also contains a large amount of pathogen, thin
Bacterium, parasitic ovum and heavy metal.Sludge treatment mostly uses greatly landfill most simple and easy but can bring occupancy soil in conventional method
The problems such as ground, polluted underground water or marine environment, landfill yard infiltration.The problem of causing with the accumulation of sludge gradually causes full generation
The attention on boundary, China have also continuously put into effect a series of measures in relation to specific resistance to filtration, regulation and standard in recent years, have used
It transports outward in incineration treatment method, the extremely low reason for the treatment of effeciency is that from sludge sump, mechanical filling sludge efficiency is extremely low, due to dirt
The moisture content of mud is more than 80%, sludge top surface Lack of support, and excavator can only carry out operation in place periphery, so how fast
It is urgent problem that speed, which effectively carries out pretreatment to the sludge in sludge sump,.
Summary of the invention
In view of the above shortcomings of the prior art, it is pre- to provide a kind of municipal sludge hole decrement based on vacuum method by the present invention
Processing method solves the problems, such as that the prior art disposes sludge low efficiency.
Technical scheme is as follows:
A kind of municipal sludge hole decrement preprocess method based on vacuum method, construction procedure are as follows:
(1) Sludge Surface is laid with braided geotextile；
(2) several row's vertical drainage bodies (drain bar) are set, binding wrench is reserved；
(3) it is laid with vacuum supervisor, chimney filter, vacuum supervisor and chimney filter quadrature arrangement, is arranged between every two rows vertical drainage body
One chimney filter connects chimney filter two sides with adjacent reserved wrench binding respectively；
(4) 2~3m sets activity drainage bag below earth's surface to earth's surface, and drainage bag exposes sludge face sufficient length and chimney filter
Binding sets row's activity drainage bag every two rows of vertical drainage bodies, and chimney filter two sides are connect with close to row's activity drainage bag respectively；
(5) harmless geotextiles are laid with；
(6) it is laid with two layers of sealing film；
(7) place periphery digs press mold ditch, and non-woven geotextile, sealing film are embedded to press mold ditch, and are pushed down with backfill clay；
(8) it arranges vacuum pump, starts to vacuumize, continue the 2-3 month；
(9) after aqueous vapor is sucked out in vacuum, water is overlayed on sealing film, is then gathered on film in water collecting sump, and arrangement water pump will store
Water pump drainage in puddle is to designated place；
(10) aperture on two layers of sealing film connects air compressor machine, mist generator, whirl spraying equipment, by bioactivator
Entered in sludge by whirl spraying equipment whirl spraying, after operation, perforations adding；
(11) continue to vacuumize, by the water pump drainage on film in water collecting sump to designated place；Treated sludge, carrying
Power reaches small-sized machine requirement, and mechanical work can be carried out on sludge face.
Water in chimney filter of the present invention enters vacuum supervisor by chimney filter, then is extracted out by vacuum pump, overlays in sealing membrane surface.
Before the row's of squeezing into vertical drainage body organized enzyme need to be smeared on row vertical drainage body surface.
Every one of setting of the 20~30m distance vacuum supervisor vertical with chimney filter；
Further, the braided geotextile weight demands are greater than 200g/m2, breadth 6m, it is native that sludge sump is paved with braiding
After work cloth, due to the tension of Sludge Surface water, woven cloth good integrity facilitates subsequent construction step personnel to march into the arena.
Further, the vertical drainage body (drain bar) is for handling sludge sump engineering, after subsequent vacuumize,
Water can largely be discharged, and sludge is compressed, thus it is general using soft SPB-B plastic drain bar, and silting blocking type is due to material
Matter is really up to the mark, can have an adverse effect to sealing film when sludge compresses.
Further, vacuum supervisor is generally attached using four-way with chimney filter, and general vacuum supervisor is using straight
Diameter 50mm ripple chimney filter, chimney filter use diameter 40mm ripple chimney filter, and chimney filter is tied up through one layer of non-woven geotextile of perforation processing packet
It is solid, accomplish only permeable impermeable other impurities.
Further, the activity drainage bag is made of drainage belt and active bag, drainage belt material based on plant rope,
One end is connect with active bag, and mud face is exposed in one end and chimney filter is bound；Active bag is woven bag, is goed deep into sludge, sack is by plant
Rope ties, and is inserted into sludge, and bioactivator is housed in active bag, and the water in sludge passes through active bag, and bioactivator is dissolved in
Enter sludge after water in sludge.
The diameter of woven bag eye is 5-15cm.
The diameter of drainage belt is not less than 3cm, length >=1m in sludge；Active bag diameter is not less than 10cm, length >=1m.
Further, harmless geotextiles described in step (5) are used to cover material involved by men working ahead step (true
Sky supervisor, chimney filter), it avoids puncturing sealing film, gas leakage occurs when vacuumizing.
All geotextiles, sealing film, non-woven fabrics are completely spread in place.
Further, described two layers sealing membrane material generally uses polyethylene (polyvinyl chloride) film, with a thickness of
0.12~0.16mm, vertically and horizontally minimum tensile strength is respectively 18.5/16.5MPa, minimum elongation at break >=220%, minimum
Angle tear strength >=40kN/m.
Further, the press mold ditch forms sealing film with sludge close for pushing down sealing film and non-woven geotextile
Close space.
Further, the vacuum pump generally needs to continue to provide the vacuum pressure of 80kPa in vacuum.
Further, the pump power is typically no less than 7.5kW, every 2000m in general place2Setting one.
Further, the air compressor machine, mist generator, whirl spraying equipment are to squeeze into bioactivator in sludge
Capital equipment, specifically, pneumatics power provides air pressure, aerosol is made in the bioactivator for being dissolved in water by mist generator
Shape, whirl spraying equipment squeeze into mist activating agent in sludge using air pressure.
Bioactivator is rhamnolipid or ferrous sulfate.
The beneficial effects of the present invention are:
1, the present invention treated moisture percentage in sewage sludge is down to 40~50% from 90%, and it is dirty to solve mechanical filling in sludge sump
The extremely low problem of mud efficiency, sludge surface layer bearing capacity is obviously improved that treated sludge reach small-sized machine requirement, can be in dirt
Mechanical work is carried out on mud face.
3, on the one hand bioactivator has disinfection, can kill part worm's ovum, harmful bacteria in sludge, can reduce
Harm of the harmful substance to human body in treatment process；On the other hand, bioactivator has the function of water-oil separating, can make sludge
In water and sludge molecule be separated from come, be discharged by way of vacuum preloading.
4, by squeezing into bioactivator in sludge, bioactivator is on the one hand increased to the volume of sludge, it is another
Aspect also brings air in sludge into, and air can look for the smallest position of medium power (drain bar) discharge in sludge, by the way will
The water that sludge molecule is detached from sludge is also discharged with original Free water, significantly increases drainage efficiency.
5, it by being to arrange activity drainage bag in 2-3m in sludge deep, solves surface layer whirl spraying equipment and squeezes into bioactivity
The problem of agent bad operation, drainage effect is more preferable.After shallow-layer accelerates draining, ground bearing pressure can be made to improve, can be subsequent whirl spraying
The construction of equipment deep layer provides necessary place basic condition.
Detailed description of the invention
Fig. 1 is drainage system plan view
Fig. 2 is drainage system diagrammatic cross-section
Fig. 3 is chimney filter plane of arrangement drawing
Fig. 4 is that plastic draining board and activity drainage bag set arrangement drawing
Fig. 5 is activity drainage bag drawing
Fig. 6 is press mold ditch drawing
Fig. 7 is that mist activating agent sprays hole location floor plan
Fig. 8 is that mist activating agent sprays hole diagrammatic cross-section
In figure: 1 axis cable, 2 vacuum pumps, water collecting sump, 4 press mold ditches, 5 vacuum supervisor, 6 chimney filters, 7 sludge, 8 activity on 3 films
Drainage bag, 9 processing sidelines, 10 establishment geotextiles, 11 non-woven geotextiles, 12 first layers sealing film, 13 second layers sealing film, 14 are erected
Hole location, 20 air compressor machines, 21 gas are sprayed to displacement hull, 15 drainage belts, 16 active bags, 17 backfill clays, 18 original soils, 19, activating agent
Misty generator, 22 whirl spraying equipment, 23 whirl spraying bars.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
As shown in figures 1-8, a kind of municipal sludge hole decrement preprocess method based on vacuum method, construction procedure is such as
Under:
(1) 7 surface of sludge is laid with braided geotextile 10；
(2) vertical drainage body 14 (drain bar) is set, binding wrench is reserved；Reach the last 14 surface of vertical drainage body smearing
Organized enzyme；
(3) be laid with vacuum be responsible for 5, chimney filter 6, vacuum supervisor 5 with chimney filter quadrature arrangement, it is every two rows vertical drainage bodies 14 between
One chimney filter 6 is set, 6 two sides of chimney filter are connected with adjacent reserved wrench binding respectively；Together every the setting of 20~30m distance
The vacuum supervisor 5 vertical with chimney filter 6；
(4) activity drainage bag 8 is set, drainage bag 8 exposes sludge face sufficient length and chimney filter 6 is bound, every two rows of vertical
Displacement hull 14 sets row's activity drainage bag 8, and 6 two sides of chimney filter are connect with adjacent row's activity drainage bag 8 respectively；
(5) 11 harmless geotextiles are laid with；
(6) it is laid with first layer sealing film 12, the second layer seals film 13；
(7) place periphery digs press mold ditch 4, and non-woven geotextile 11, first layer sealing film 12, the second layer are sealed film 13,
And it is pushed down with backfill clay 17；
(8) it arranges vacuum pump 2, starts to vacuumize, generally continue the 2-3 month；Every 800~the 1000m of vacuum pump2Setting one.
(9) after aqueous vapor is sucked out in vacuum, water overlays on second layer sealing film 13, the storage being then gathered on second layer sealing film 13
In puddle, arrange water pump by water pump drainage to designated place；
(10) aperture on first layer sealing film 12, second layer sealing film 13, connects air compressor machine 20, mist generator 21
With whirl spraying equipment 22.Bioactivator whirl spraying is entered in sludge 7, after operation, perforations adding continues to vacuumize.
(11) treated sludge, bearing capacity reach small-sized machine requirement, mechanical work can be carried out on sludge face.
10 weight of braided geotextile is greater than 200g/m2, breadth 6m, after sludge sump surface is paved with braided geotextile 10, due to
The tension of 7 surface water of sludge, woven cloth good integrity facilitate subsequent construction step personnel to march into the arena.
Vertical drainage body 14 is using soft SPB-B plastic drain bar.
Vacuum supervisor 5 is attached with chimney filter 6 using four-way, and vacuum supervisor 5 uses diameter for 50mm ripple chimney filter, chimney filter
6 use diameter for 40mm ripple chimney filter, and chimney filter 6 is tied up solid through one layer of non-woven geotextile of perforation processing packet, accomplish only permeable
Impermeable other impurities.
Activity drainage bag 8 is made of drainage belt 15 and active bag 16, and 15 material of drainage belt is based on plant rope, one end and work
Property bag 16 connect, one end expose mud face and chimney filter 6 binding connect, diameter be not less than 3cm, length >=1m in sludge 7；Activity
Bag 16 is woven bag, is goed deep into sludge 7, and sack is tied by plant rope, is inserted into 7 sludge, and active 16 diameter of bag is not less than 10cm,
Length >=1m is equipped with bioactivator in active bag, and the water in sludge passes through active bag, and bioactivator is dissolved in the water in sludge
Enter sludge afterwards.
Harmless geotextiles 11 are used to cover material involved by men working ahead step (vacuum supervisor, chimney filter), avoid piercing
Broken first layer sealing film 12, the second layer seal film 13, and gas leakage occurs when vacuumizing.
First layer seals film 12, second layer sealing film 13 uses polyethylene (polyvinyl chloride) film, with a thickness of 0.12~
0.16mm, vertically and horizontally minimum tensile strength is respectively 18.5/16.5MPa, and minimum elongation at break >=220%, minimum right angle is torn
Resistance to spalling >=40kN/m.
Press mold ditch 4 keeps first layer close for pushing down first layer sealing film 12, second layer sealing film 13 and non-woven geotextile 11
Sealer 12, the second layer sealing sludge of film 13 and 7 form confined space.
Vacuum pump 2 needs to continue to provide the vacuum pressure of 80kPa in vacuum.
Water pump built in water collecting sump 13 on film, pump power are not less than 7.5kW, every 2000m in place2Setting one.
Wherein, air compressor machine 20, mist generator 21 and whirl spraying equipment 22 are the master squeezed into bioactivator in sludge 7
Equipment is wanted, wherein pneumatics power 20 provides air pressure, and mist is made in the bioactivator for being dissolved in water by mist generator 21,
Whirl spraying equipment 22 squeezes into mist activating agent in sludge using air pressure.
The present embodiment treated moisture percentage in sewage sludge is down to 40~50% from 90%.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (7)
1. a kind of municipal sludge hole decrement preprocess method based on vacuum method, which comprises the steps of:
(A) sludge (7) surface is laid with braided geotextile (10)；
(B) several row's vertical drainage bodies (14) are set, binding wrench is reserved；
(C) it is laid with vacuum and is responsible for (5), chimney filter (6), vacuum is responsible for (5) and chimney filter (6) quadrature arrangement, every two rows vertical drainage body
(14) chimney filter (6) is set between, chimney filter (6) two sides are connected with adjacent reserved wrench binding respectively；
(D) 2~3m is set activity drainage bag (8) below earth's surface to earth's surface, and activity drainage bag (8) exposes sludge face sufficient length
It is bound with chimney filter (6), sets row's activity drainage bag (8) every two rows of vertical drainage bodies (14), chimney filter (6) two sides are respectively and tightly
Adjacent row's activity drainage bag (8) connection；
(E) harmless geotextiles (11) are laid with；
(F) it is laid with two layers of sealing film；
(G) place periphery digs press mold ditch (4), glues by harmless geotextiles (11), sealing film embedment press mold ditch (4), and with backfill
Soil pressure is lived；
(H) vacuum pump (2) are arranged, starts to vacuumize, continue the 2-3 month；
(I) after aqueous vapor is sucked out in vacuum, water is overlayed on sealing film, is then gathered in water collecting sump on film (13), and arrangement water pump will store
Water pump drainage in puddle is to designated place；
(J) aperture on two layers of sealing film connects air compressor machine (20), mist generator (21), whirl spraying equipment (22), will be biological
Activating agent is entered in sludge by whirl spraying equipment (22) whirl spraying, after operation, perforations adding；
(K) continue to vacuumize, by the water pump drainage on film in water collecting sump to designated place；Treated sludge, bearing capacity reach
To the requirement of upper small-sized machine, mechanical work can be carried out on sludge face.
2. a kind of municipal sludge hole decrement preprocess method based on vacuum method as described in claim 1, feature exist
In the row's of squeezing into vertical drainage body (14) smears organized enzyme on row vertical drainage body (14) surface in step (B).
3. a kind of municipal sludge hole decrement preprocess method based on vacuum method as described in claim 1, feature exist
In every 20~30m setting, one of vacuum supervisor (5) vertical with chimney filter (6) in step (C).
4. a kind of municipal sludge hole decrement preprocess method based on vacuum method as described in claim 1, feature exist
In activity drainage bag (8) is made of drainage belt (15) and active bag (16) in step (D), drainage belt (15) one end and active bag
(16) it connects, sludge is exposed in one end and chimney filter (6) are bound；Active bag (16) is woven bag, is goed deep into sludge, sack is by drainage belt
(15) it ties, in insertion sludge (7), bioactivator is housed in active bag.
5. a kind of municipal sludge hole decrement preprocess method based on vacuum method as claimed in claim 4, feature exist
In the diameter of drainage belt (15) is not less than 3cm, length >=1m in sludge (7)；The diameter of active bag (16) is not less than 10cm,
Length >=1m.
6. a kind of municipal sludge hole decrement preprocess method based on vacuum method as described in claim 1, feature exist
In the braided geotextile (10) weight is greater than 200g/m2, breadth 6m；The vertical drainage body is using soft SPB-
Type B plastic draining board.
7. a kind of municipal sludge hole decrement preprocess method based on vacuum method as described in claim 1, feature exist
In two layers of sealing membrane material uses polyethylene film or polyvinyl chloride film, with a thickness of 0.12~0.16mm, in length and breadth
It is respectively 18.5/16.5MPa to minimum tensile strength, minimum elongation at break >=220%, minimum angle tear strength >=
40kN/m。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811226742.0A CN109264957A (en) | 2018-10-22 | 2018-10-22 | A kind of municipal sludge hole decrement preprocess method based on vacuum method |
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| CN201811226742.0A CN109264957A (en) | 2018-10-22 | 2018-10-22 | A kind of municipal sludge hole decrement preprocess method based on vacuum method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111395299A (en) * | 2020-04-01 | 2020-07-10 | 中船勘察设计研究院有限公司 | Multifunctional combined type vacuum preloading treatment method for sludge with high water content and high organic matter content |
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Patent Citations (5)
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| US20100200426A1 (en) * | 2009-02-10 | 2010-08-12 | Vermont Organics Reclamation Inc | Apparatus and method for phase separation of liquids and solids |
| CN101555689A (en) * | 2009-04-30 | 2009-10-14 | 中国科学院武汉岩土力学研究所 | Method and device for pre-consolidating mixed hydraulically-filled soft soil foundation |
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| CN111395299A (en) * | 2020-04-01 | 2020-07-10 | 中船勘察设计研究院有限公司 | Multifunctional combined type vacuum preloading treatment method for sludge with high water content and high organic matter content |
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Application publication date: 20190125 |