CN102701567A - Rapid dewatering treatment method for high-water-content dredged silt - Google Patents
Rapid dewatering treatment method for high-water-content dredged silt Download PDFInfo
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- CN102701567A CN102701567A CN2012101822911A CN201210182291A CN102701567A CN 102701567 A CN102701567 A CN 102701567A CN 2012101822911 A CN2012101822911 A CN 2012101822911A CN 201210182291 A CN201210182291 A CN 201210182291A CN 102701567 A CN102701567 A CN 102701567A
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a rapid dewatering treatment method for high-water-content dredged silt. The method comprises the following steps of: arranging a cofferdam type silt storing area close to a dredging engineering implementation area, and pumping high-water-content dredged silt generated in dredging engineering to the silt storing area through a conveying pipeline; in a continuous pipeline pumping process, adding an agglutinant into the pipeline for undergoing a flocculation reaction with the dredged silt to realize rapid solid-liquid separation, and draining the separated flocculent mud and free water into the silt storing area; directly draining free water among mud by using self-gravity, naturally dewatering, drying and solidifying the residual flocculent mud, and performing resource recycling. Due to the adoption of the method, high-water-content dredged silt can be treated continuously, rapidly and economically, the drained water is clear and free from the hidden trouble of secondary pollution, and silt of which the strength meets the construction mud requirement in a short period of time in the cofferdam type silt storing area is carried out or efficiently recycled in situ.
Description
Technical field
The present invention relates to field of environment protection, especially a kind of fast dewatering treatment process of high cumulative water-oil ratio dredging silt.
Background technology
Characteristics such as the dredging silt that produces in the dredging engineerings such as lake, river course, bay, marine site has glutinous grain content, cumulative water-oil ratio is high, compressibility is big, intensity is low, penetrating quality is poor, and discharging consolidation is slow.
When dredging silt is handled, cofferdam type storage mud district generally need be set near dredging engineering is implemented the zone, with dredging silt through pipe-line transportation to storing up in the mud district, in storage mud district, carry out the solidification treatment of dredging silt.Existing solidification processing method mainly contains spontaneous curing, chemosetting and machinery and solidifies three kinds.
Spontaneous curing be exactly in the mud moisture overflow behind gravity settling efflux, the residual earth after the sedimentation carries out seasoning and deadweight Consolidation under solar radiation, reach in intensity and make resource utilization after building with the soil requirement and utilize.Because the general cumulative water-oil ratio of this type of dredging silt is hundreds of percent; Argillous natural drying process needs the long-term time in 2 to 3 years; Even after shining upon for a long time, the earth top layer can complete drying, but still can't effectively dewater in middle level, deep layer position.A large amount of dredging silt is piled up, and makes storage mud district receive the mud ability and is hindered.Chemosetting is to be that solidifying agent and dredging silt are cured reaction through adding cement, and then subtracts through water extracter and to hold the solidified method, but the cement that adds is that solidifying agent causes earth pH strong basicity easily, and nitrogen, phosphorus etc. exceeds standard, and causes the draining deterioration.Machinery solidifies forced dehydration methods such as adopting mechanical stirring curing or mechanism filter-pressing, and there are problems such as operational difficulty, running cost is high, floor space is big in this method, and is infeasible conscientiously in actual procedure.
Summary of the invention
Goal of the invention: the objective of the invention is the above-mentioned technical bottleneck problem that exists in the existing dredging silt solidification treatment process, a kind of fast dewatering treatment process of continuous, quick, economic high cumulative water-oil ratio dredging silt is provided.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of fast dewatering treatment process of high cumulative water-oil ratio dredging silt is provided with cofferdam type storage mud district near dredging engineering is implemented the zone, through transport pipe the high cumulative water-oil ratio dredging silt that produces in the dredging engineering is pumped to storage mud district; In pipeline uninterrupted pumping process, in pipeline, add agglutinant and mud generation flocculation reaction, realize quick solid-liquid separation, isolated flocculence earth of institute and free water enter storage mud district; Utilize self gravitation directly to efflux, remaining flocculence earth is carried out nature dehydration, dry, fixed, carry out resource utilization then and utilize again by the free water between earth.
Wherein, be provided with static mixer or serpentine tube mixing tank at described feeding opening place at transport pipe.
Wherein, in transport pipe, tube fluid Reynolds constant is on average more than 2100, and mud viscosity Reynolds constant when peak value is instantaneous more than 500; Wherein Reynolds constant Re=Q * ρ/(0.785 * D μ) Q representes to send the mud amount, and unit is: m
3/ S; ρ representes to dredge argillous density, and unit is: kg/m
3D representes the caliber of transport pipe, and unit is: m; μ representes to dredge argillous viscosity, and unit is: PaS.
Wherein, described agglutinant is any one in anionic polymer agglutinant or the inorganic salt agglutinant, and wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of inorganic salt agglutinant: the relative dredging silt dry solids wt of the dry matter weight of inorganic salt agglutinant is 0.2%～2.0%; The perhaps combination of any one anionic polymer agglutinant and any one inorganic salt agglutinant; Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of inorganic salt agglutinant: the relative dredging silt dry solids wt of the dry matter weight of inorganic salt agglutinant is 0.2%～2.0%; The perhaps combination of any one anionic polymer agglutinant and cation high molecular agglutinant; Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of cation high molecular agglutinant: the dry weight of cation high molecular agglutinant is 0.01% of dredging silt dry solids wt---1%; Wherein, said anionic polymer agglutinant is anion-polyacrylamide, Z 150PH, butyl polyacrylate, guar gum, Lewatit, ROHM, Vinyl Acetate Copolymer sulfonic acid; Described cation high molecular agglutinant is a cationic-type polyacrylamide; Said inorganic agglutinant is Poly aluminum Chloride (PAC), gather iron, poly-ferric chloride, iron protochloride, Tai-Ace S 150, ferric sulfate, calcium chloride, magnesium chloride, cement, slaked lime.
Wherein, said storage Ni Qu bottom surface or one-sided wall are laid permeable sand or metalling, lay permeable geotextile at permeable sand or metalling surface, through permeable sand or metalling the free water water conservancy diversion are effluxed.
In pipeline, add the sludge treatment medicament and fully react the formation flocs unit; Realize quick solid-liquid separation and produce permeable good natural bow member structure particles; Reacted mud flocs unit is fed into storage mud district, cofferdam natural subsidence to be separated; The mud district is stored up in the dried up discharge of branch, the storage residual earth utilization in mud district shines upon seasoning and deadweight Consolidation is realized earth upper layer part, middle level portion, deep layer portion thorough drying; Strength enhancing in short period of time, and satisfy to build and use native requirement, taken out of or the direct method of effectively utilizing of original position.The problems such as the pH that exists with indigenous method and the increase of COD value, earth hydrophobicity are poor, draining deterioration, system operation difficulty that solved in the general dredging earth that to add cement be the solidifying agent improvement for building.The present invention is continuous, quick, the economic treatment process of a kind of high cumulative water-oil ratio dredging silt.
Beneficial effect: continuous, quick, the economic treatment process of high cumulative water-oil ratio dredging silt of the present invention; Be to be primarily aimed at dredging silts such as lake, river course, bay, marine site; Cumulative water-oil ratio in pipeline uninterrupted pumping process, adds agglutinant more than 400%; Under pipeline sinuous flow stirring action, carry out thorough mixing with various materials such as sending fine grogs that exists in the mud and pollutent; And the firm flocs unit completion of the formation of building bridge hydrophobization process, the free water between the flocs unit is efficiently deviate from this moment, and reacted earth input bottom surface or side wall surface are provided with the storage mud district, cofferdam of high water-permeability sand or metalling discharge structure; Free water between above-mentioned flco gets into drained zone, the limpid secondary pollution hidden danger that do not exist of the moisture of discharge through permeable sand or metalling.When free water is discharged; Earth nature densification in the storage mud district, cofferdam promotes draining; Along with constantly deviating from of free water, the earth surfaces cracking forms large-area crackle under solar radiation, promotes seasoning; The sub-intensity of grogs increases, and intensity reaches to build with soil and requires to be taken out of or the utilization of original position efficient resource in the short period of time.
Description of drawings
Fig. 1: process schematic representation.
Fig. 2: aggegation design sketch.
Fig. 3: concept map naturally dewaters.
Fig. 4: the built-in a plurality of draining perforated tube figure of layer of sand.
Fig. 5: built-in main drain figure in the layer of sand.
Fig. 6: natural dehydrating effect concept map.
Fig. 7: dry earth outward transport recycling figure.
Fig. 8: arid soil is used as afforestation plant growth soil layout n..
Embodiment:
According to following embodiment, can better understand the present invention.Yet, those skilled in the art will readily understand that the described concrete material proportion of embodiment, processing condition and result thereof only are used to explain the present invention, and the present invention that should also can not limit in claims to be described in detail.
The fast dewatering treatment process of high cumulative water-oil ratio dredging silt of the present invention is that cofferdam type storage mud district is set near dredging engineering is implemented the zone, through transport pipe the high cumulative water-oil ratio dredging silt that produces in the dredging engineering is pumped to storage mud district; In pipeline uninterrupted pumping process, in pipeline, add agglutinant and mud generation flocculation reaction, realize quick solid-liquid separation, isolated flocculence earth of institute and free water enter storage mud district; Utilize self gravitation directly to efflux, remaining flocculence earth is carried out nature dehydration, dry, fixed, carry out resource utilization then and utilize again by the free water between earth.
As shown in Figure 1, high cumulative water-oil ratio dredging earth 2 is carried through sand dredger 1, carries through transport pipe 7 then; Transport pipe 7 is connected with the agglutinant flow in pipes, will guarantee to keep the sinuous flow state from the medicament decanting point to handling mud relief outlet whole transportation process, and medicament fully reacts with mud under transport pipe 7 sinuous flow stirring actions; Conditioned soil 3 enters in the storage mud district 9 that cofferdam 6 surrounds.
Wherein, said anionic polymer agglutinant is anion-polyacrylamide (PAM), Z 150PH, butyl polyacrylate, guar gum, Lewatit, ROHM, Vinyl Acetate Copolymer sulfonic acid.
Described cation high molecular agglutinant is cationic-type polyacrylamide (PAM).
Said inorganic agglutinant is Poly aluminum Chloride (PAC) (PAC), gather iron, poly-ferric chloride, iron protochloride, Tai-Ace S 150, ferric sulfate, calcium chloride, magnesium chloride, cement, slaked lime.
General addition manner can be:
1) any one independent interpolation in anionic polymer agglutinant, the inorganic salt agglutinant; Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of inorganic salt agglutinant: the relative dredging silt dry solids wt of the dry matter weight of inorganic salt agglutinant is 0.2%～2.0%;
2) any one anionic polymer agglutinant mixes use with any one inorganic salt agglutinant.
Can add the anionic polymer agglutinant earlier and form flco, add the inorganic salt agglutinant after machinery is smashed again; Also can add dispersion agent earlier grogs is disperseed, then negatively charged ion adds the polymer agglutinant, adds the inorganic salt agglutinant at last; Also can add the inorganic salt agglutinant earlier, add the anionic polymer agglutinant again.
Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of inorganic salt agglutinant: the relative dredging silt dry solids wt of the dry matter weight of inorganic salt agglutinant is 0.2%～2.0%.
3) add the anionic polymer agglutinant earlier, add the cation high molecular agglutinant again.Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of cation high molecular agglutinant: the dry weight of cation high molecular agglutinant is 0.01% of dredging silt dry solids wt---1%;
As shown in Figure 2; In transport pipe 7, begin to add organic agglutinant 20; Under the bridging action of organic agglutinant 20 and cellulosic 19, net is caught bridge formation mud particulate 18, and inorganic or organic polymer medicament firmly twines the formation flco to mud particulate 18; Free water between flco is dissociated away smoothly, embodies high hydrophobicity.
When adding above-mentioned polymer coagulant in the pipeline, the instantaneous meeting of mixed stream reaches the viscosity peak, after mixed stream viscosity rises, slowly descends again.When reaching peak value, for keeping good sinuous flow state, the Reynolds constant in the time of must guaranteeing peak value is more than 500, and in the whole reflection time period, the Reynolds constant on average will reach more than 2100.The Reynolds constant be a kind of be an important parameter that characterizes fluid flow characteristics, reacted medicament and mud mixing stirring extent at this.Wherein Reynolds constant Re=Q * ρ/(0.785 * D μ) Q representes to send the mud amount, and unit is: m
3/ S; ρ representes to dredge argillous density, and unit is: kg/m
3D representes the caliber of transport pipe, and unit is: m; μ representes to dredge argillous viscosity, and unit is: PaS.
The keeping with the transport pipe caliber, send mud amount etc. that relation is arranged of Reynolds constant, simultaneously the transport pipe caliber with send the mud amount to determine all pressure-losseses again: transport pipe is long, and the pressure-losses is big, and the pressure-losses is on average generally at 10000kg/m
2Comparatively suitable in the scope.And duct length must guarantee, could let medicament and earth respond the time, i.e. the necessary reaction times t (s) of duct length=flow velocity (m/s) * medicament); Pipeline is short have been satisfied not the reaction times, makes agglutination reaction incomplete, hinders flco formation and influences dehydrating effect; Pipeline is long, and except that uneconomical, the broken ring of the mud flocs unit particle of discharge influences the nature dehydrating effect equally.
Described agglutinant adds point before the static mixer ingress.It is to adopt robot control system(RCS) to operate that described pipeline medicament adds; Analyze through PLC through getting data with online specific gravity hydrometer of the mud of pipe connection and flow measurement; Analyze according to concerning the agglutinant interpolation rate that calculates for resulting proportion in the laboratory and agglutinant interpolation rate: when the proportion of mud between 1.0-2.0g/cm3; The interpolation rate is 2%-50%, wherein: interpolation rate=concentration is 3/1000ths bolus volume: sludge volume.Flow * agglutinant interpolation rate is the addition of this agglutinant, realizes on-line automatic control conveying.Described online specific gravity hydrometer can be the online specific gravity hydrometer of gamma line, the online specific gravity hydrometer of UW etc.; Online under meter adopts magnetic flow meter, Doppler flowmeter etc.; It is to have given play to effect through collaborative pipeline sinuous flow effects such as pipeline static mixer or snake pipe mixing tanks that described medicament stirs.
9 bottom surfaces, said storage mud district or one-sided wall are laid permeable sand or metalling, lay permeable geotextile at permeable sand or metalling surface, through permeable sand or metalling the free water water conservancy diversion are effluxed.Shown in Figure 3; The storage mud district 9 that cofferdam 6 is constructed; Lay the pervious bed 23 that permeable sand or metalling constitute in storage 9 bottom surfaces, mud district; Lay permeable geotextile 24 on permeable sand or metalling surface and compile water and infiltrate, free water is guided in retaining wall 4 outside clean water basin through permeable sand or metalling to pervious bed 23.Wet-pit 5 and liquid level control switch are set in the clean water basin carry out automatic draining control, water 21 is pumped.
Also can be shown in Figure 4, permeable sand or metalling internal layout water flowing void channels 12, on the void channels 12 parcel non-woven fabrics 22, make sand or rubble can not get in the void channels 12, carry out unpowered draining.Can be pervious bed structure or watertight layer structure water conservancy diversion free water at described retaining wall 4.Also can be shown in Figure 5ly, in pervious bed or metalling, drainage pipeline is set, directly will break away from water 25 and discharge.
As shown in Figure 6, dredging earth carries out seasoning under shining upon, and forms large-area crackle 10 and is exposed at the surface, and this crackle 10 promotes sun drying to carry out, and intensity rises and forms conditioned soil in the short period of time.
As shown in Figure 7, conditioned soil 3 intensity can be carried and built heavy-duty machine 13 and carry out mechanical work after 3 months, conditioned soil 3 is dug out to be loaded on the wagon tremie 11 taken out of by outward transport, take out of ridge, the domatic basal layer surface of soil shown in covering.For considering to satisfy mechanical effect intensity such as tractor, as shown in Figure 8, must on conditioned soil 3, cover certain thickness cultivated natively 14, could plant vegetation 15, conditioned soil 3 also can be by the original position direct utilization.
Embodiment one: cumulative water-oil ratio is 400% polyelectrolyte dredging ooze, carried 9 hours continuously through pipeline, and treatment capacity reaches 918m
3(this interpolation is in proper order for adding PAM earlier in transport pipe, to add anionic polymer PAM and inorganic salt PAC through the automatic control system on-line metering; Add PAC again), anionic polymer PAM addition be mud solid content weight 0.5%, inorganic high salt PAC addition is 1.5% of mud solid content weight.According to the reaction times and the flow velocity of every kind of medicament, calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Handle mud input storage mud district get into through 30cm metalling water guide be arranged in the middle of the metalling, the porous permeable channel of the non-woven fabrics that is wrapped carries out draining; Discharging standards is satisfied in draining, non-secondary pollution.Handle mud and under state of nature, shine upon drying, handle mud intensity in the time of 3 months and reach 110kpa, cumulative water-oil ratio is 66.6%, is taken out of as building embankment soil and utilizes.
The correlation parameter that this design is adopted is following
Divide dried up detection index table two:
| Test item | Measured value | Standard |
| pH | 7.6 | 6.5—8.3 |
| COD | 3.2 | Below 7 |
| SS | 3.8 | Below 10 |
| T-P | 0.025 | 0.05 below |
Embodiment two: water ratio is 80% polyelectrolyte dredging ooze, carried 8 hours continuously through pipeline, and treatment capacity reaches 850m
3, in transport pipe, adding the anionic polymer butyl polyacrylate through the automatic control system on-line metering, anionic polymer butyl polyacrylate addition is 0.9% of a mud solid content weight.According to the reaction times and the flow velocity of every kind of medicament, calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Handle mud input storage mud district get into through 30cm metalling water guide be arranged in the middle of the metalling, the porous permeable channel of the non-woven fabrics that is wrapped carries out draining; Discharging standards is satisfied in draining, non-secondary pollution.Handle mud and under state of nature, shine upon drying, handle mud intensity in the time of 3 months and reach 110kpa, cumulative water-oil ratio is 62.5%, is taken out of as building embankment soil and utilizes.
The correlation parameter that this design is adopted is following
Divide dried up detection index table two:
| Test item | Measured value | Standard |
| PH | 7.2 | 6.5-8.3 |
| COD | 3.1 | Below 7 |
| SS | 3.6 | Below 10 |
| T-P | 0.034 | 0.05 below |
Embodiment three: water ratio is 85% polyelectrolyte dredging ooze, carried 9 hours continuously through pipeline, and treatment capacity reaches 926m
3(this interpolation is in proper order for adding guar gum earlier in transport pipe, to add anionic polymer guar gum and inorganic salt PAC through the automatic control system on-line metering; Add PAC again), anionic polymer guar gum addition be mud solid content weight 0.3%, inorganic salt PAC addition is 2% of mud solid content weight.According to the reaction times and the flow velocity of every kind of medicament, calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Handle mud input storage mud district get into through 30cm metalling water guide be arranged in the middle of the metalling, the porous permeable channel of the non-woven fabrics that is wrapped carries out draining; Discharging standards is satisfied in draining, non-secondary pollution.Handle mud and under state of nature, shine upon drying, handle mud intensity in the time of 3 months and reach 100kpa, cumulative water-oil ratio is 70%, is taken out of as building embankment soil and utilizes.
The correlation parameter that this design is adopted is following
Divide dried up detection index table two:
| Test item | Measured value | Standard |
| PH | 6.8 | 6.5-8.3 |
| COD | 3.6 | Below 7 |
| SS | 4.1 | Below 10 |
| T-P | 0.025 | 0.05 below |
Embodiment four: flow is that 500m3/ hour, cumulative water-oil ratio are 650% the organic dredging silt in river course; Carried 4 hours continuously through pipeline; In transport pipe, automatically successively add the dispersion agent of relative mud solid content weight 0.1%, the guar gum of mud solid content weight 1.0% and relative mud solid content weight 0.3% gathers iron relatively.According to the reaction times and the flow velocity of every kind of medicament, calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
And near each medicament adds mouth, static mixer is set; Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Mud mud after reaction treatment directly gets in the dehydration geotechnique bag that is deposited on domatic and carries out natural drainage; The moisture of discharging is limpid bright, and each item index satisfies discharging standards, non-secondary pollution.Handle mud and under state of nature, shine upon drying this moment; Handle mud intensity in the time of 1 month and reach 90kpa; Cumulative water-oil ratio is 85%; Turn over the processing earth in the sack this moment, sows grass seeds in the above with soil and fertilizer carries out slope greening as slope greening, utilizes thereby mud is able to resource utilization again.
The correlation parameter that this design is adopted is following
Divide dried up detection index
| Test item | Measured value | Standard |
| PH | 6.8 | 6.5-8.3 |
| COD | 5.4 | Below 7 |
| SS | 2.8 | Below 10 |
| T-P | 0.031 | 0.05 below |
Embodiment five: flow is that 450m3/ hour, cumulative water-oil ratio are 550% the organic dredging silt in river course; Carried 5 hours continuously through pipeline, in transport pipe, successively add the iron that gathers of the dispersion agent of relative mud solid content weight 0.1%, relative mud solid content weight 1.8% automatically.According to the reaction times and the flow velocity of every kind of medicament, calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
And near each medicament adds mouth, static mixer is set; Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Mud mud after reaction treatment directly gets in the dehydration geotechnique bag that is deposited on domatic and carries out natural drainage; The moisture of discharging is limpid bright, and each item index satisfies discharging standards, non-secondary pollution.Handle mud under state of nature, shine upon drying this moment, handles mud intensity in the time of 1 month and reach 100kpa, and cumulative water-oil ratio is 78%, sows grass seeds in the above with soil and fertilizer carries out slope greening as slope greening, utilizes thereby mud is able to resource utilization again.
The correlation parameter that this design is adopted is following
Divide dried up detection index
| Test item | Measured value | Standard |
| PH | 7.0 | 6.5-8.3 |
| COD | 4.9 | Below 7 |
| SS | 3.1 | Below 10 |
| T-P | 0.035 | 0.05 below |
Embodiment six: flow is that 560m3/ hour, cumulative water-oil ratio are 600% the organic dredging silt in river course; Carried 6 hours continuously through pipeline, in transport pipe, successively add the PAC of relative mud solid content weight 0.1%, the Z 150PH of relative mud solid content weight 0.5% automatically.According to the reaction times and the flow velocity of every kind of medicament, calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
And near each medicament adds mouth, static mixer is set; Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Mud mud after reaction treatment directly gets in the dehydration geotechnique bag that is deposited on domatic and carries out natural drainage; The moisture of discharging is limpid bright, and each item index satisfies discharging standards, non-secondary pollution.Handle mud and under state of nature, shine upon drying this moment, handles mud intensity in the time of 2 months and reach 120kpa, and cumulative water-oil ratio is 84%, taken out of as building embankment soil and utilize.
The correlation parameter that this design is adopted is following
Divide dried up detection index
| Test item | Measured value | Standard |
| PH | 7.4 | 6.5-8.3 |
| COD | 3.5 | Below 7 |
| SS | 3.6 | Below 10 |
| T-P | 0.029 | 0.05 below |
Embodiment seven: flow is that 800m3/ hour, cumulative water-oil ratio are 800% the organic dredging silt in lake; Carried 14 hours continuously through pipeline; In transport pipe, successively add the anionic polymer agglutinant PAM of the molecular weight 1,200 ten thousand of relative mud solid content weight 0.1% automatically, the molecular weight that then adds relative mud solid content weight 0.02% again is 8,000,000 cation high molecular agglutinant PAM.
Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Handle mud input storage mud district get into through 30cm metalling water guide be arranged in the middle of the metalling, the porous permeable channel of the non-woven fabrics that is wrapped carries out draining; Discharging standards is satisfied in draining, non-secondary pollution.Handle mud and under state of nature, shine upon drying, handle mud intensity in the time of 3 months and reach 98kpa, cumulative water-oil ratio is 70.6%, and original position is utilized with soil as greening again.
Divide dried up detection index
| Test item | Measured value | Standard |
| PH | 7.2 | 6.5-8.3 |
| COD | 4.6 | Below 7 |
| SS | 6.8 | Below 10 |
| T-P | 0.04 | 0.05 below |
Embodiment eight: flow is that 750m3/ hour, cumulative water-oil ratio are 700% the organic dredging silt in lake; Carried 12 hours continuously through pipeline; In transport pipe, successively add the iron that gathers of relative mud solid content weight 1.5% automatically, add the ROHM of relative mud solid content 0.1% again, according to the reaction times and the flow velocity of medicament; Calculate the interpolation point of every kind of medicament, provide the sufficient reaction times of medicament.
Utilize static mixer to stir collaborative pipeline sinuous flow and mix the highly effective reaction processing of carrying out mud and medicament; Handle mud input storage mud district get into through 30cm metalling water guide be arranged in the middle of the metalling, the porous permeable channel of the non-woven fabrics that is wrapped carries out draining; Discharging standards is satisfied in draining, non-secondary pollution.Handle mud and under state of nature, shine upon drying, handle mud intensity in the time of 3 months and reach 120kpa, cumulative water-oil ratio is 80.3%, and original position is utilized with soil as greening again.
Divide dried up detection index
| Test item | Measured value | Standard |
| PH | 7.3 | 6.5-8.3 |
| COD | 4.0 | Below 7 |
| SS | 5.4 | Below 10 |
| T-P | 0.035 | 0.05 below |
Claims (5)
1. the fast dewatering treatment process of a high cumulative water-oil ratio dredging silt is characterized in that: cofferdam type storage mud district is set near dredging engineering is implemented the zone, through transport pipe the high cumulative water-oil ratio dredging silt that produces in the dredging engineering is pumped to storage mud district; In pipeline uninterrupted pumping process, in pipeline, add agglutinant and mud generation flocculation reaction, realize quick solid-liquid separation, isolated flocculence earth of institute and free water enter storage mud district; Utilize self gravitation directly to efflux, remaining flocculence earth is carried out nature dehydration, dry, fixed, carry out resource utilization then and utilize again by the free water between earth.
2. the fast dewatering treatment process of a kind of high cumulative water-oil ratio dredging silt according to claim 1 is characterized in that: be provided with static mixer or serpentine tube mixing tank at described feeding opening place at transport pipe.
3. the fast dewatering treatment process of a kind of high cumulative water-oil ratio dredging silt according to claim 1 is characterized in that: in transport pipe, tube fluid Reynolds constant is on average more than 2100, and mud viscosity Reynolds constant when peak value is instantaneous more than 500;
Wherein Reynolds constant Re=Q * ρ/(0.785 * D μ) Q representes to send the mud amount, and unit is: m
3/ S; ρ representes to dredge argillous density, and unit is: kg/m
3D representes the caliber of transport pipe, and unit is: m; μ representes to dredge argillous viscosity, and unit is: Pa S.
4. the fast dewatering treatment process of a kind of high cumulative water-oil ratio dredging silt according to claim 1 is characterized in that:
Described agglutinant is any one in anionic polymer agglutinant or the inorganic salt agglutinant, and wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of inorganic salt agglutinant: the relative dredging silt dry solids wt of the dry matter weight of inorganic salt agglutinant is 0.2%～2.0%;
The perhaps combination of any one anionic polymer agglutinant and any one inorganic salt agglutinant; Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of inorganic salt agglutinant: the relative dredging silt dry solids wt of the dry matter weight of inorganic salt agglutinant is 0.2%～2.0%;
The perhaps combination of any one anionic polymer agglutinant and cation high molecular agglutinant; Wherein, the addition of anionic polymer agglutinant: the dry weight of anionic polymer agglutinant is 0.1%～1.0% of dredging silt dry solids wt; The addition of cation high molecular agglutinant: the dry weight of cation high molecular agglutinant is 0.01% of dredging silt dry solids wt---1%;
Wherein, said anionic polymer agglutinant is anion-polyacrylamide, Z 150PH, butyl polyacrylate, guar gum, Lewatit, ROHM, Vinyl Acetate Copolymer sulfonic acid;
Described cation high molecular agglutinant is a cationic-type polyacrylamide;
Said inorganic agglutinant is Poly aluminum Chloride (PAC), gather iron, poly-ferric chloride, iron protochloride, Tai-Ace S 150, ferric sulfate, calcium chloride, magnesium chloride, cement, slaked lime.
5. the fast dewatering treatment process of a kind of high cumulative water-oil ratio dredging silt according to claim 1; It is characterized in that: said storage Ni Qu bottom surface or one-sided wall are laid permeable sand or metalling; Lay permeable geotextile at permeable sand or metalling surface, the free water water conservancy diversion is effluxed through permeable sand or metalling.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073264A (en) * | 2013-02-07 | 2013-05-01 | 河南华天环保科技有限公司 | Method for preparing ceramsite by utilizing high-moisture-content sludge |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376071A (en) * | 2008-10-09 | 2009-03-04 | 江苏江达生态科技有限公司 | Technique for separating mud and water in river and lake deposit |
| CN101503237A (en) * | 2009-03-18 | 2009-08-12 | 南京大学 | Chemical reagent combination and use thereof in sharp separation and water quality purification |
| CN102107936A (en) * | 2011-01-14 | 2011-06-29 | 南京大学 | Technique for treating remaining water of desilted sediment in Lake Tai |
| CN102120682A (en) * | 2011-01-12 | 2011-07-13 | 天津生态城环保有限公司 | New ultrasound-assisted sludge dewatering system |
| CN202080995U (en) * | 2011-05-12 | 2011-12-21 | 江苏艾特克环境工程设计研究院有限公司 | High-speed dehydration system for polyelectrolyte sludge |
| CN102312416A (en) * | 2011-10-13 | 2012-01-11 | 长沙理工大学 | Dredger fill sludge dewatering and solidification method |
| CN102311217A (en) * | 2011-06-03 | 2012-01-11 | 江苏艾特克环境工程设计研究院有限公司 | Granulation and dehydration technology for dredged sludge |
-
2012
- 2012-06-05 CN CN2012101822911A patent/CN102701567A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101376071A (en) * | 2008-10-09 | 2009-03-04 | 江苏江达生态科技有限公司 | Technique for separating mud and water in river and lake deposit |
| CN101503237A (en) * | 2009-03-18 | 2009-08-12 | 南京大学 | Chemical reagent combination and use thereof in sharp separation and water quality purification |
| CN102120682A (en) * | 2011-01-12 | 2011-07-13 | 天津生态城环保有限公司 | New ultrasound-assisted sludge dewatering system |
| CN102107936A (en) * | 2011-01-14 | 2011-06-29 | 南京大学 | Technique for treating remaining water of desilted sediment in Lake Tai |
| CN202080995U (en) * | 2011-05-12 | 2011-12-21 | 江苏艾特克环境工程设计研究院有限公司 | High-speed dehydration system for polyelectrolyte sludge |
| CN102311217A (en) * | 2011-06-03 | 2012-01-11 | 江苏艾特克环境工程设计研究院有限公司 | Granulation and dehydration technology for dredged sludge |
| CN102312416A (en) * | 2011-10-13 | 2012-01-11 | 长沙理工大学 | Dredger fill sludge dewatering and solidification method |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103073264A (en) * | 2013-02-07 | 2013-05-01 | 河南华天环保科技有限公司 | Method for preparing ceramsite by utilizing high-moisture-content sludge |
| CN103232149A (en) * | 2013-04-15 | 2013-08-07 | 天津科技大学 | Environmental protection dredging stockyard sediment original position rapid dehydration system |
| CN103395959A (en) * | 2013-07-30 | 2013-11-20 | 江苏宝能建筑材料有限公司 | Lake sludge dewatering process |
| CN103601352A (en) * | 2013-11-27 | 2014-02-26 | 福建省源顺环保工程有限公司 | Environment-friendly sludge treatment system |
| CN104961323A (en) * | 2015-07-07 | 2015-10-07 | 河海大学 | Dredged slurry dehydration method based on slurry cake permeability |
| CN104961323B (en) * | 2015-07-07 | 2017-06-09 | 河海大学 | A kind of dredging mud dewatering based on mud transdermally water |
| CN105198108A (en) * | 2015-09-30 | 2015-12-30 | 卞正奎 | System for treating waste mud water and improving same into ecological water system |
| CN105198108B (en) * | 2015-09-30 | 2017-05-31 | 卞正奎 | It is a kind of to administer sludge slurry water improvement into the system of ecological water system |
| CN107162381A (en) * | 2017-07-31 | 2017-09-15 | 长江师范学院 | A kind of device for treating sludge and its method |
| CN107200461A (en) * | 2017-07-31 | 2017-09-26 | 长江师范学院 | A kind of process for treating sludge |
| CN107200461B (en) * | 2017-07-31 | 2020-04-07 | 长江师范学院 | Sludge treatment method |
| CN107162381B (en) * | 2017-07-31 | 2020-08-21 | 长江师范学院 | A kind of sludge treatment equipment and method thereof |
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