CN110028216A - A kind of silt sludge fast dewatering method based on penetrating passage - Google Patents
A kind of silt sludge fast dewatering method based on penetrating passage Download PDFInfo
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- CN110028216A CN110028216A CN201910256974.9A CN201910256974A CN110028216A CN 110028216 A CN110028216 A CN 110028216A CN 201910256974 A CN201910256974 A CN 201910256974A CN 110028216 A CN110028216 A CN 110028216A
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- 239000010802 sludge Substances 0.000 title claims abstract description 89
- 230000000149 penetrating effect Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000018044 dehydration Effects 0.000 claims abstract description 41
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000011049 filling Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000004062 sedimentation Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- 230000008595 infiltration Effects 0.000 claims description 4
- 238000001764 infiltration Methods 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 3
- 239000004746 geotextile Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims description 2
- 230000010148 water-pollination Effects 0.000 claims description 2
- 239000006185 dispersion Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000010801 sewage sludge Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
The present invention discloses a kind of silt sludge fast dewatering method based on penetrating passage, which comprises the following steps: by river and lake ecology dredging silt or excess sludge standing sedimentation 30-60min after mixing evenly, removes upper water；With numb velveteen and its penetrating passage of the artificial constructed certain filling rate of union twist yarn in the dehydration reactor of certain diameter；Silt sludge is pumped into dehydration reactor, stands 1-3min, makes penetrating passage full of reactor；Start booster pump, adjusts pressure limit 0.05-0.5MPa, be persistently dehydrated 12-20min, the dehydrated sludge cake of moisture content 40-80% can be formed, filter out water and be directly precipitated by penetrating passage in reactor bottom.The penetrating passage of building is substantially reduced sludge specific resistance, accelerates sludge dewatering, thickens filters pressing sludge thickness, improves filters pressing sludge yield, reduces silt sludge dewatering cost.
Description
Technical field
The present invention relates to a kind of silt sludge fast dewatering method based on artificial constructed penetrating passage, belongs in environmental protection
Silt sludge dewatering treatment and disposal field.
Background technique
The dehydration of riverway sludge and municipal sewage plant's thickened sludge is always global problem.In recent years, city is advised
The requirement of continuous expansion and the environmental protection of mould further increases, and the excess sludge that sewage treatment plant generates is also growing day by day, must
It must comprehensively be handled, moisture content is up to 95-99%；In addition the implementation of river long system, river Changzhi, a large amount of rivers and lake need
It removes contamination improvement, a large amount of mud will be generated.These silt sludge all need be dehydrated before final disposal to keep its moisture content low
To 70% and less.In addition, the production wastewater treatment of each industrial enterprise can also generate a large amount of industrial sludge, and generate concentration
Containing large amount of organic in sludge, hydrophily is strong, and it is also very high in conjunction with water content, it also needs to be carried out dehydrating.Therefore, silt sludge
The huge market demand of dehydration, but at present dehydration technique be still it is inefficient, dehydration resistance it is big.
Domestic and international existing silt mechanical sludge dewatering technology has plate compression, belt type dehydration, vacuum dehydration, centrifugal dehydration
Deng.These technologies have the characteristics that one it is common, pressure or centrifugal force lead to silt sludge from mud face to filtering plane perpendicular effect
Pressure is sequentially increased ontology from bottom to top, so that waterproof cake layer is directly formed on silt sludge bottom, and is increased with pressure
It is more and more thicker with time extension cake layer, the lasting progress of dehydration is directly hindered, dehydration efficiency sharply declines, to make
It must be dehydrated difficulty, or have to terminate dehydration.In order to improve the mechanical dehydration efficiency of silt sludge, publication (application number
201811523240.4) the addition temperature-responsive polyacrylate copolymer in sludge is proposed, the copolymer is in sludge blanket
After interior hardening formed cubic network skeleton, with play support maintenance sludge blanket in itself formed intergranular pores road, prevent due to
Duct of seeping water between pressure increase particle is deformed to disappearing, and substance itself and not formed water seepage hole road is added, only
Duct is delayed to disappear.Its polyacrylate copolymer being added has pollution to silt sludge simultaneously, does not meet environmental protection concept.In addition,
The other publications of the applicant (application number 201811523247.6, application number 201811523251.2, application number
201811523258.4 application number 201811523269.2, application number 201811524049.1, application number
201811547992.4, application number 201811547994.3) description Method And Principle it is almost the same, only deal with objects not
Together, it is that water polyacrylic acid copolymer is added in sludge (or dyeing and finishing hc effluent), controls sludge system, make polypropylene
Acid ester copolymer reacts to form polypropylene predecessor, then catches mud granule by net, rolls up and sweep, to form big sludge group,
Its process nature is the coagulation step of polyacrylamide, the not formation and utilization of penetrating passage.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of silt sludge effective dehydrating method, pass through silt
Sludge standing drowns oneself, the processing links such as penetrating passage, filter-press dehydration is arranged, and realizes the high-efficiency dehydration of mud, and it is dirty that silt is effectively reduced
The dehydration cost of mud.
In order to achieve the above object, the technical scheme adopted by the invention is that:
A kind of silt sludge fast dewatering method based on penetrating passage, it is remaining with river and lake ecology Dredged bed mud or sewage treatment
Sludge is object, is dehydrated using the dehydration reactor of building penetrating passage to silt sludge, it is characterised in that: structure in silt sludge
It builds penetrating passage and is extruded into good environment for its particulate interspaces water, reduce during original expressed water filters out in bottom filter cake
The resistance of interlayer solves the problems, such as that the dehydration efficiency as caused by pressure increase drops suddenly and is forced to terminate, the specific steps are as follows:
A, the lake dredging bottom-mud or 90-95% excess sludge for taking a certain amount of moisture content 70% or so, are stirred in 200rpm
2-5min is mixed, is filtered with 18 mesh steel-wire screens；
B, a is walked into gained silt sludge standing sedimentation 30-60min, removes upper water；
C, as shown in Fig. 2, in the dehydration reactor by bottom surface drainage of certain diameter, with fiber crops, cotton, suede and its blended
The penetrating passage of line (abbreviation channel material) artificial constructed certain filling rate, channel material filling ratio are the 0.1- of mud dry weight
5.0%；Dehydration reactor bottom plate is provided with the filtration hole of diameter 0.5-2.0mm, and aperture ratio is 30-70%, dehydration reactor bottom
Tile geotextiles in portion, and the channel material of setting is blended at being orderly scattered in silt sludge ontology, line tail end after line by 7S/5~60S/2
Access dehydration reactor bottom plate filtration hole is exposed to outside dehydration reactor after twisted, this constitutes penetrating passage；
D, b is walked into gained silt sludge and is pumped into the made dehydration reactor of c step, stood 1-3min, tighten dehydration reactor upper cover；
E, start air boost pump, adjust pressure 0.01MPa, then duration 1.0min is pressurized to 0.05MPa, tie up
2min is held, final boost to 0.2-0.4MPa maintains 9-17min；
F, stop pressurization, unscrew reactor upper cover, can be obtained the silt sludge that moisture content is 40-80%.
Further, the step a is sufficiently to stir evenly silt sludge, prevents bulk clay and branch club from gluing and twines subsequent reaction
Device penetrating passage material, destroys its order.
Further, the step b is quiet heavy, for drainage is precipitated, reduces subsequent seepage pressure and load.
Further, channel packing material fiber crops, cotton, suede and its union twist yarn in the step c, have centainly hydrophilic
Property, the resistance that Interstitial Water enters penetrating passage can be reduced；Filling ratio 0.1-5.0% be to form reasonable penetrating passage area,
This area and bottom opening area are roughly the same, to be conducive to control filtering velocity in penetrating passage；7S/5~60S/2 is blended at line
And orderly disperse to ensure to be not easy to entwine between penetrating passage；Emphasis be in silt sludge ontology penetrating passage finally be twisted together after in bottom plate
Filtration hole stretches out outside dehydration reactor, to form the penetrating passage that this inside and outside of silt sludge communicates completely.
Further, step d standing is that silt sludge is allowed sufficiently to be combined with its penetrating passage, penetrating passage capillary and
Silt mud granule gap is effectively connected.
Further, the purpose that three sections of pressurizations are arranged in the step e is that low pressure stage makes penetrating passage and silt mud granule phase
To fixation, intermediate pressure section makes free water between particle first pass through penetrating passage precipitation, and high pressure section is finally arranged and squeezes into particulate interspaces water
Penetrating passage fair current and go out, existing dead end filters pressing is solved with pressure increase bottom end mud cake progressive additive, to can not continue to be precipitated
The problem of Interstitial Water.
The present invention has the following beneficial effects: the present invention is compared with the prior art, advantage is as follows:
(1) existing silt sludge press filtration dehydration mostly uses greatly plate compression, belt filters pressing and centrifugal dehydration, top-down pressure
Power causes bottom silt sludge to quickly form hypotonic permeable or fluid-tight cake layer, so that the moisture in silt sludge can not continue to seep
Out.Even if there is publication (application number 201811523240.4) to propose building infiltration duct, but its temperature-responsive for using
Property polyacrylate copolymer only silt sludge body interior formed cubic network skeleton, protect silt mud granule between itself
Gap is unlikely to deform it in pressure-filtering process, is not built into continuous penetrating passage, and this network skeleton is unordered
, the outside for leading to silt sludge ontology is also failed to, the low water permeability cake layer that silt sludge bottom can not be overcome to gradually form is asked
Topic.
(2) present invention first filters silt sludge with 200rpm stirring and 18 mesh, effectively prevents bulk clay and branch club
It is viscous to twine the penetrating passage constructed in reactor, reduce its order, it is ensured that the validity of subsequent passes infiltration；
(3) present invention by using filler material such as cotton, fiber crops, suede and its blend etc. there is certain hydrophilic material to construct
Penetrating passage does not add any secondary pollution into silt sludge, even if these natural fabric fiber materials cannot be returned effectively,
Gradually it can also be degraded or utilize in silt sludge, will not influence the comprehensive utilization of silt sludge resource, be that a kind of silt of environmental protection is dirty
Mud dehydration technique.
(4) present invention carries out silt sludge dewatering using the method for gradually increasing pressure, efficiently solves primary increase suddenly
Pressure causes reactor bottom low-permeability cake layer to increase sharply, infiltration coefficient abruptly increase and make silt sludge internal moisture can not be after
Continuous the problem of being precipitated, this is also the low key problem of current silt sludge press filtration dehydration efficiency.
(5) present invention process is simple, safe operation, is a kind of silt sludge dewatering technology of high-efficiency environment friendly.
Detailed description of the invention
Fig. 1 is that the present invention is based on the flow diagrams of the silt sludge fast dewatering method of penetrating passage.
Fig. 2 is the schematic diagram of the dehydration reactor provided with penetrating passage.
Symbol description in attached drawing: 1 shell of reactor, 2 forced air filter plates, 21 filter plate apertures, 3 penetrating passages,
31 penetrating passage sides hair, 32 penetrating passage main lines, 4 reactor bottom plates, 41 geotextiles, 42 poly (methyl methacrylate) plates with holes, 43 support frames,
5 bottom water outlets, 6 forced air inlets.
Specific embodiment
For the ease of those of ordinary skill in the art understand and implement the present invention, below with reference to embodiment to the present invention make into
The detailed description of one step, it should be understood that implementation example described herein is merely to illustrate and explain the present invention, and is not used to limit
The fixed present invention.
Embodiment 1:
The training of channel mud of moisture content 70% is stirred into 2min in 200rpm, then is sieved with 18 mesh steel wires, sedimentation
30min filters off upper water, obtains the mud of moisture content 68%.Take the round plastic reactor of an effective internal diameter 70mm, it is interior with accounting for
Cotton yarn more spinning than the 16S/5 of mud dry weight 0.1% constitutes penetrating passage by step c.The mud of 100g butt is added, stands
1min, silt depth 60mm or so tighten reactor sealing cover, are passed through 0.01MPa forced air, duration 1.0min, so
After be pressurized to 0.05MPa, maintain 2min, final boost to 0.20MPa, maintenance 9min obtains filtering out water 131g at this time, mud contains
Water rate is reduced to 45%.Without building penetrating passage, when other conditions are same as above, have to filter out water 80g, mud moisture content is 57%, phase
Than mud moisture content decline 12% after building penetrating passage, sludge volume reduces 22%.
Embodiment 2:
The training of channel mud of moisture content 70% is stirred into 2min in 200rpm, then is sieved with 18 mesh steel wires, sedimentation
30min filters off upper water, obtains the mud of moisture content 68%.Take the round plastic reactor of an effective internal diameter 70mm, it is interior with accounting for
Than the 60S/2,80% pro-skin suede and 20% copolymer of fiber suede union twist yarn of mud dry weight 0.2%, penetrating passage is constituted by step c.It is added
The mud of 100g butt stands 2min, and silt depth 60mm or so tightens reactor sealing cover, and it is empty to be passed through 0.01MPa pressurization
Then gas, duration 1.0min are pressurized to 0.05MPa, maintain 2min, and final boost to 0.20MPa maintains 12min, at this time
It obtains filtering out water 146g, mud moisture content is reduced to 40%.Without building penetrating passage, when other conditions are same as above, have to filter out water
80g, mud moisture content are 57%, and compared to mud moisture content decline 17% after building penetrating passage, sludge volume reduces 28%.
Embodiment 3:
Municipal sewage plant's thickened sludge of moisture content 95% is stirred into 2min in 200rpm, then with 18 mesh steel wire mistakes
Sieve, quiet heavy 60min.Take the round plastic reactor of an effective internal diameter 100mm, the interior 7S/5 with accounting mud dry weight 5.0%,
80% pro-skin suede and 20% copolymer of fiber suede union twist yarn constitute penetrating passage by step c.The sludge of 60g butt is added, stands 3min,
Sludge thickness 150mm or so, tightens reactor sealing cover, is passed through 0.01MPa forced air, then duration 1.0min increases
It is pressed onto 0.05MPa, maintains 2min, final boost to 0.40MPa maintains 17min, obtains filtering out water 938g at this time, sludge is aqueous
Rate is reduced to 75%.Without building penetrating passage, when other conditions are same as above, have to filter out water 428g, moisture percentage in sewage sludge 92% is compared
Moisture percentage in sewage sludge declines 17% after constructing penetrating passage, and sludge volume reduces 68%.
Embodiment 4:
The pharmacy fermentation sludge of moisture content 93% is stirred into 2min in 200rpm, then is sieved with 18 mesh steel wires, it is quiet heavy
60min.Take the round plastic reactor of an effective internal diameter 100mm, the interior 7S/5 with accounting mud dry weight 2.6%, 50% cotton with
50% numb union twist yarn, constitutes penetrating passage by step c.The sludge of 82g butt is added, stands 2min, sludge thickness 150mm is left
It is right.Reactor sealing cover is tightened, 0.01MPa forced air is passed through, then duration 1.0min is pressurized to 0.05MPa, maintain
2min, final boost to 0.30MPa maintain 12min, obtain filtering out water 885g at this time, moisture percentage in sewage sludge is reduced to 72%.Without building
Penetrating passage when other conditions are same as above, is had to filter out water 358g, moisture percentage in sewage sludge 90% is dirty compared to after building penetrating passage
Mud moisture content decline 18%, sludge volume reduces 64%.
It should be understood that the invention is not limited to a kind of river and lake silt and excess sludge effective dehydrating method and implementing
Situation described in example, its description are non-limiting.Permission of the invention is defined in the claims, the art people
The skill related to the present invention that member is obtained by the methods of transformation filler material type, quantitative proportion, material recombination according to the present invention
Art is all within protection scope of the present invention.
Claims (6)
1. a kind of silt sludge fast dewatering method based on penetrating passage, remaining dirty with river and lake ecology Dredged bed mud or sewage treatment
Mud is object, is dehydrated using the dehydration reactor of building penetrating passage to silt sludge, which is characterized in that including walking as follows
It is rapid:
A, the lake dredging bottom-mud or 90-95% excess sludge for taking a certain amount of moisture content 70% or so stir 2- in 200rpm
5min is filtered with 18 mesh steel-wire screens；
B, a is walked into gained silt sludge standing sedimentation 30-60min, removes upper water；
C, in the dehydration reactor by bottom surface drainage of certain diameter, with fiber crops, cotton, suede and its union twist yarn, abbreviation channel material
Material, the penetrating passage of artificial constructed certain filling rate, channel material filling ratio are the 0.1-5.0% of mud dry weight；Dehydration
Device bottom plate is provided with the filtration hole of diameter 0.5-2.0mm, and aperture ratio is 30-70%, and tile geotextiles for dehydration reactor bottom, if
The channel material set is blended at silt sludge ontology is orderly scattered in after line by 7S/5~60S/2, accesses dehydration after line tail end is twisted
Reactor bottom plate filtration hole is exposed to outside dehydration reactor, this constitutes penetrating passage；
D, b is walked into gained silt sludge and is pumped into the made dehydration reactor of c step, stood 1-3min, tighten dehydration reactor upper cover；
E, start air boost pump, adjust pressure 0.01MPa, then duration 1.0min is pressurized to 0.05MPa, maintain
2min, final boost to 0.2-0.4MPa maintain 9-17min；
F, stop pressurization, unscrew dehydration reactor upper cover, can be obtained the silt sludge that moisture content is 40-80%.
2. a kind of silt sludge fast dewatering method based on penetrating passage as described in claim 1, it is characterised in that: the step
Rapid a is sufficiently to stir evenly silt sludge, prevents bulk clay and branch club from gluing and twines subsequent reactor penetrating passage material, destroying it has
Sequence.
3. a kind of silt sludge fast dewatering method based on penetrating passage as described in claim 1, it is characterised in that: the step
Rapid b is quiet heavy, for drainage is precipitated, reduces subsequent seepage pressure and load.
4. a kind of silt sludge fast dewatering method based on penetrating passage as described in claim 1, it is characterised in that: the step
Channel packing material fiber crops, cotton, suede and its union twist yarn, have certain hydrophily in rapid c, can reduce Interstitial Water and enter infiltration and lead to
The resistance in road；Filling ratio 0.1-5.0% is to form reasonable penetrating passage area, this area and bottom opening area substantially phase
When to be conducive to control filtering velocity in penetrating passage；7S/5~60S/2 it is blended at line and orderly dispersion to ensure between penetrating passage
It is not easy to entwine；Emphasis be in silt sludge ontology penetrating passage finally be twisted together after in bottom plate filtration hole stretch out dehydration reactor outside, from
And form the penetrating passage that this inside and outside of silt sludge communicates completely.
5. a kind of silt sludge fast dewatering method based on penetrating passage as described in claim 1, it is characterised in that: the step
Rapid d standing is that silt sludge is allowed sufficiently to be combined with its penetrating passage, and penetrating passage capillary is effectively connected with silt mud granule gap.
6. a kind of silt sludge fast dewatering method based on penetrating passage as described in claim 1, it is characterised in that: the step
The purpose that three sections of pressurizations are arranged in rapid e is that low pressure stage keeps penetrating passage and silt mud granule relatively fixed, and intermediate pressure section makes to swim between particle
Penetrating passage is first passed through from water to be precipitated, high pressure section is finally set, particulate interspaces water is squeezed into penetrating passage fair current and is gone out, and is solved existing
There is dead end filters pressing with pressure increase bottom end mud cake progressive additive, so that the problem of Interstitial Water is precipitated can not be continued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910256974.9A CN110028216B (en) | 2019-04-01 | 2019-04-01 | Rapid sludge dewatering method based on water seepage channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910256974.9A CN110028216B (en) | 2019-04-01 | 2019-04-01 | Rapid sludge dewatering method based on water seepage channel |
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| CN110028216B CN110028216B (en) | 2021-10-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110950514A (en) * | 2019-12-09 | 2020-04-03 | 沈阳铝镁设计研究院有限公司 | Temporary storage treatment method for waste sludge of urban sewage treatment plant |
| CN114804554A (en) * | 2022-04-01 | 2022-07-29 | 安徽理工大学 | Waste slurry curing device and slurry curing method |
| CN115572033A (en) * | 2022-09-19 | 2023-01-06 | 北京城市排水集团有限责任公司 | Two-stage carbonization system and method for preparing sludge carbon |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110950514A (en) * | 2019-12-09 | 2020-04-03 | 沈阳铝镁设计研究院有限公司 | Temporary storage treatment method for waste sludge of urban sewage treatment plant |
| CN114804554A (en) * | 2022-04-01 | 2022-07-29 | 安徽理工大学 | Waste slurry curing device and slurry curing method |
| CN115572033A (en) * | 2022-09-19 | 2023-01-06 | 北京城市排水集团有限责任公司 | Two-stage carbonization system and method for preparing sludge carbon |
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