CN101618935A - Process for treating waste sludge resulted from bridge drilling - Google Patents
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- CN101618935A CN101618935A CN200910166426A CN200910166426A CN101618935A CN 101618935 A CN101618935 A CN 101618935A CN 200910166426 A CN200910166426 A CN 200910166426A CN 200910166426 A CN200910166426 A CN 200910166426A CN 101618935 A CN101618935 A CN 101618935A
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Abstract
The invention relates to a process for treating waste sludge resulted from bridge drilling. The process comprises the selection of flocculant variety, chemical adding method and chemical adding amount. The process is characterized in that the flocculant variety is anionic polyacrylamide, solid chemical adding method is adopted, the chemical adding amount is determined according to the density of sludge to be treated, a waste sludge pond is directly used as a chemical flocculation reactor and a sedimentation device, flocculation and sedimentation are carried out directly in the waste sludge pond, supernate obtained after sedimentation is discharged upon standard meeting, and bottom sludge after the sedimentation is directly used for harmless burry. The process is suitable for the site treatment of the waste sludge resulted from pile foundation drilling for railway and highway bridges. The process has convenient technical procedure operation and can be implemented in a sludge sedimentation pond on a construction site. The process has low treatment cost and short treatment time. The supernate and the sedimented bottom sludge have no adverse influences upon the environment.
Description
Technical field
The present invention relates to the treatment process of a kind of processing railway, Road Bridge Pile Foundation boring discarded slurry (non-bentonite slurry), be mainly used in the finish processing of back discarded slurry of railway, highway or the foundation construction of heavy construction drilled pile.
Background technology
Railway and the highway bridge design bored pile foundations that adopt, construction process need utilize mud protection hole wall more, carry drilling cuttings portals, cool off drill bit etc., can produce a large amount of discarded slurries after construction finishes, if can the pollution surrounding environment without handling.Again settling tank is carried out the method for landfill after railway, Road Bridge Pile Foundation engineering discarded slurry adopt natural sedimentation more and discharge supernatant liquor at present.Discarded slurry is more stable colloidal dispersion, can not realize solid-liquid separation for a long time under the natural sedimentation condition, when heavy rain or other unforeseen circumstancess occurring, easily causes the excessive and contaminate environment of mud; The method of disposal that adopts tank car to be transported to landfill yard is also arranged, but this method trucking costs is higher, is generally 30～60 yuan/m
3The unit in charge of construction that has does not promptly carry out landfill to suction pit to discarded slurry is treated, causes mud to overflow, the water body around polluting.
The research that at present relevant discarded slurry is handled focuses mostly in the petroleum drilling industry, and discarded slurry treatment technology commonly used mainly contains the chemical flocculation solid-liquid separation, chemical flocculation adds mechanical dehydration, chemosetting processing and soil cultivating processing etc.
The chemical flocculation treatment process is by adding flocculation agent in mud, and the chemical stability of destroying mud system makes water separate with solid phase particles, makes discarded slurry minimizing, mummification, is convenient to clear the supernatant liquor qualified discharge.Flocculation agent commonly used during discarded slurry is handled is the polyacrylamide polymeric flocculant, and according to the pertinent literature introduction, the petroleum industry discarded slurry is handled the cationic polyacrylamides that adopt more.After adopting chemical flocculation to handle, discarded slurry is separated into supernatant liquor and precipitation bed mud, generally to carry out the research and the evaluation of the ecological hazard of supernatant liquor qualified discharge and precipitation bed mud, the main evaluation index of supernatant liquor is oils, heavy metal and chemical oxygen demand (COD), and the research of the ecological hazard of relevant bed mud is less.
Can make mud reach the effect of solid-liquid separation behind the chemical flocculation, but the solid water ratio after the precipitate and separate is still higher, can not stacks or directly transportation, therefore the solid after separating need be carried out mechanical dehydration, solid volume is further reduced, be convenient to transportation.This method is chemical flocculation and adds the mechanical dehydration method.This method need be set up dewatering machine, and processing costs is higher, and general many in the fixed-site use, is not suitable for the working-yard and handles mud.
The chemosetting method is to make its stable method in the middle of the method with physical-chemical is included in inert material with objectionable impurities, by in discarded slurry, adding solidifying agent or peptizer, make moisture minimizing in the mud, be formed with the stable anti-water solid of certain intensity, organism in the mud and heavy metal are difficult for being leached by inerting.It is main raw that solidifying agent generally adopts cement, is aided with water glass, gypsum and various additive.Solidification method primary treatment amount is big, and treatment effect was also better when pollutant load was higher, but the treatment process relative complex, and expense is higher.Be mainly used at present and contain the more mud of pollutent, as the processing of waste drilling mud and dangerous solid waste.
It is that discarded slurry is sprinkling upon upper soll layer that soil cultivating is handled, and with its mixing, makes its degraded after utilizing microorganism in the soil that the objectionable impurities in the mud is absorbed with machinery.This method is the best way from seeing economically, but may cause soil compaction and salinization, and the different soils textural difference may make treatment effect reduce.
Compare with the oil discarded slurry, the discarded slurry pollutent of railway, highway is less, concentration is lower, therefore might adopt simple treatment process that it is handled.The discarded slurry on-site disposal techniques that this research is intended to develop a kind of suitable railway, Road Bridge Pile Foundation boring discarded slurry processing requirements, can promotes the use of.
Summary of the invention
The technical issues that need to address of the present invention are: a kind of process for treating waste sludge resulted from bridge drilling is provided, is fit to the site disposal of railway, Road Bridge Pile Foundation boring discarded slurry, this technological operation is convenient, can carry out in the mud settling sump at the construction field (site); Processing cost is low; Treatment time is short; Can not have a negative impact after the processing to environment.
Technical solution of the present invention is: process for treating waste sludge resulted from bridge drilling, comprise flocculation agent kind, dosing method and add dose and select, it is characterized in that: described flocculation agent kind is selected anion-polyacrylamide for use, adopt the solid dosing method, determine to add dose according to pending mud density, directly use the discarded slurry pond as the chemical flocculation reactor, in the discarded slurry pond, flocculate, precipitation, solid-liquid separation, staticly settle back supernatant liquor discharging, the direct innoxious landfill of the bed mud of post precipitation.
The present invention compared with prior art has following advantage: directly handle in the discarded slurry pond at the scene, do not need ad hoc chemical flocculation reactor, settler, flocculate, precipitate, discharge clear water in suction pit; Process technology is simple, be applicable to railway, highway or the foundation construction of heavy construction drilled pile finish the back discarded slurry site disposal; Adopt the solid dosing, omitted the dissolving whipping appts; Processing cost is low, less than 3 yuan/m
3Treatment time is short, and general 3h has realized the instant processing of discarded slurry; The post precipitation supernatant liquor meets integrated wastewater discharge standard GB8978-1996; Supernatant liquor discharging back mud volume reduces more than 50%, and precipitation bed mud water ratio reduces greatly, can direct innoxious landfill, and can be used as farm crop behind the landfill and reclaim.
Compare with other process for treating waste sludge resulted, have certain environmental benefit, economy of resources and economic benefit.
Environmental benefit: prevented the pollution of discarded slurry to environment.
Economy of resources: the water consumption that has reduced dissolved anion type polyacrylamide; The supernatant liquor that post precipitation is discharged can be used for the irrigated farmland; The direct innoxious landfill of the bed mud of post precipitation can be used for reclaiming behind the landfill of discarded slurry pond.
Economic benefit: reduced the treatment and disposal expense and the transport charge of discarded slurry, reduced settling tank and drawn the mud expense clearly, processing cost is low, far below the outward transport cost.
The present invention and other technology relatively see Table 1.
Each treatment process of table 1 relatively
| Treatment process | Handle and the disposal time | Handle the place | Operation | Processing cost | Influence to environment | Remarks |
| The present invention | Lack (single suction pit generally needs 3h) | In the suction pit | Simply | Low, less than 3 yuan/m 3 | The supernatant liquor qualified discharge, the harmless landfill of bed mud | Can reclaim behind the settling tank landfill |
| Natural sedimentation | Very long | In the suction pit | Simply | Low | Rainy day is easily overflowed contaminate environment, and there is potential safety hazard in people and animals | |
| Chemical flocculation+mechanical dehydration | Shorter | Mud is evacuated to equipment to be handled | Complicated, the dehydration bed mud needs to dispose separately | Processing cost is higher, mechanical means acquisition cost height | Water outlet is up to standard | |
| The chemosetting method | Longer, generally need 3-5 days | In the suction pit | Complicated | Height, a bite well needs 3-5 ten thousand | Hazardous wastes is separated out, contaminate environment | Generally be used for the higher drilling fluid of pollutant load |
| Land law | Long | The processing of changing places | Complicated | Might cause soil compaction | Method is still under test | |
| Outward transport | Longer | Be transported to landfill yard | Simpler | Height, 30-60 unit/m 3 | May spill in the transportation |
Description of drawings
Fig. 1 is the technology of the present invention route map;
Fig. 2 is a bridge drilling discarded slurry site disposal process flow sheet of the present invention.
Specific embodiments
Describe embodiment of the present invention in detail below in conjunction with accompanying drawing.
By characteristic and the investigation field condition that detects Railway Bridge Pile Foundation boring discarded slurry, tentatively determine the coagulating sedimentation treatment process; Carry out the selection of flocculation agent kind, dosing method and the suitable test that adds dose in the laboratory; Carry out the ecological security assessment of supernatant liquor check and analysis up to standard and supernatant liquor and precipitation bed mud; Determine the site disposal technical process according to laboratory results; Carry out discarded slurry site disposal test.
One. investigation
1. Railway Bridge Pile Foundation boring discarded slurry Characteristics Detection
Gather 6 bid section constructions of Beijing-Shanghai High-Speed Railway discarded slurry sample, analyzed the pollutent indexs such as pH, chemical oxygen demand (COD) (COD), total chromium, total lead and petroleum-type of supernatant liquor.By detected result table 2 as can be known, compare with document PetroChina Company Limited. industry discarded slurry, Beijing-Shanghai High-Speed Railway bridge construction discarded slurry Pollutant levels are lower.
Table 2 Beijing-Shanghai High-Speed Railway discarded slurry detected result (mg/L)
2. Railway Bridge Pile Foundation boring field condition investigation
In each bid section on the-spot investigation of Beijing-Shanghai High-Speed Railway situations such as the processing of rig type, boring and clear hole work flow, mud kind and Recycle design, mud sediment pool size, boring mud reset mode, discarded slurry and disposal.
3. technical scheme is determined
On the basis that literature survey, site inspection and characteristics of mud detect, the preliminary method processing discarded slurry of determining to adopt chemical flocculation precipitation.
Two. the flocculation agent kind is selected test
In the soil sample that Beijing-Shanghai high speed 1 bid section is got preparation mud, the size analysis result accounts for more than 50% of whole particle weight for diameter less than the particle weight of 0.1mm, and being configured to density with tap water is 1100kg/m
3Mud, carry out coagulation cup jar experiment in the laboratory.Add different flocculation agents, wherein polyacrylamide (PAM) dissolves by 0.1% concentration.Churning time, intensity and sedimentation time are identical, observe, mud solid-liquid separation effect and be deposited in the mud particle size of lower floor relatively.The upper strata clear water that inclines then with spreading on the ground of lower floor's mud, is observed the stackable property of mud, and test-results sees Table 3.As seen from the experiment, in the selected flocculation agent of this test, the solid-liquid separation effect of anion-polyacrylamide is better.
The solid-liquid separation effect comparison test of all kinds of flocculation agents of table 3
Three. the dosing method comparison test
General polyacrylamide will use by 0.1%～0.2% mass ratio dissolving back.But the mud quantity of the single settling tank in railway building site is bigger, and volume is mostly at 80m
3More than, if add dose, to dissolve by 0.1% mass ratio in 100mg/L, water consumption will reach 8m
3, so big water consumption is difficult to realize at the scene.For this reason, carried out the comparison test (seeing Table 4) of dosing method in the laboratory.
The different dosing method comparison tests of table 4
Adopt jar test method, preparing density with the clay of Beijing-Shanghai High-Speed Railway one bid section is 1100kg/m
3, 1150kg/m
3And 1200kg/m
3Mud, adopt selected anionic flocculant, be divided into the dissolving dosing of 0.1%, 1% mass ratio and directly solid dosing dual mode carry out the comparison test of flocculation sediment dosing method.Test-results shows, for three kinds of different mud of relative density, when the sedimentation time sufficiently long, adopts solid dosing and two kinds of dosing method sedimentation effects of dissolving dosing difference little; Add under the dose situation identical, the required churning time of solid dosing is longer, but actual engineering can be accepted; The stackable property of two kinds of dosing method precipitation bed muds is all relatively good; Directly the solid dosing need increase dose 20% than the dissolving dosing.Comprehensive above-mentioned test-results from the actual consideration of engineering, can adopt the mode of solid dosing to carry out the site disposal of discarded slurry.
Four. the suitable dose that adds is tested
On the basis of above-mentioned experiment, adopt the mode of solid dosing to investigate the different influences (see Table 5) of dose that add to the flocculation sediment effect.Take all factors into consideration the indexs such as stackable property, the limpid degree of supernatant liquor and floc sedimentation granular size of post precipitation bed mud, density is the mud of 1100kg/m3,1150kg/m3 and 1200kg/m3, the suitable dose that adds is respectively 40～60mg/L, 90～110mg/L and 230～250mg/L, and sedimentation time is 60min.
Table 5 difference adds the influence of dose to sedimentation effect
Five. supernatant liquor qualified discharge and ecological safety analysis
1. polyacrylamide is to the contribution test of chemical oxygen demand COD
Polyacrylamide is a kind of high molecular polymer, is dissolved in the water and can shows as COD.In order to inquire into this polyacrylamide contribution amount to COD in handling the mud process, this test utilizes the polyacrylamide solution of distilled water compound concentration for 100mg/L and 200mg/L, and has measured the COD value.The result shows that the COD value of two kinds of concentration correspondences is respectively 110mg/L and 210mg/L.Test sees Table 6 with the product performance of polyacrylamide.
The product performance of table 6 test polyacrylamide
2. the clay of preparation mud is to the contribution test of COD
Contain organic matter in the clay, also can be reflected as chemical oxygen demand COD after being mixed with mud.The present invention adopts the different soil samples (1-4 number) of Beijing-Shanghai High-Speed Railway 1 bid section, is 1100kg/m with tap water preparation density
3, 1150kg/m
3Mud, measure the COD and SS (total suspended matter) concentration of supernatant liquor after the natural sedimentation, see (table 7).
The COD of table 7 clay contamination fluid and SS value
As seen from the experiment, different soil samples are because of its organic content difference, and the concentration of COD is different in the leach liquor; When mud density was big, the organic content in the unit volume mud was also many, and COD content is also high in the leach liquor.When utilizing chemical solid-liquid separating method to handle discarded slurry, also need to consider to prepare the contribution amount of the clay of mud itself to COD.
3. supernatant liquor analytical test up to standard
Prepare mud with tap water, behind flocculation sediment, getting density is 1100kg/m
3Mud (adding dose is 50mg/L) and density are 1150kg/m
3(adding dose is 100mg/L) gets the supernatant liquor behind the dosing flocculation sediment, measured COD and SS index, and the result is as shown in table 8.
Supernatant C OD/SS measurement result after table 8 solid-liquid separation
After the solid-liquid separation in the supernatant liquor COD form by three parts: COD is deliquescent in the tap water, can be along with coagulating sedimentation obtains removing; The content of COD in the clay own is lower, and non-solubility COD wherein is along with coagulating sedimentation obtains removing, and remaining dissolved matter is little to the COD contribution of supernatant liquor; COD great majority and clay particle reaction that polyacrylamide produces enter the precipitation bed mud, so supernatant C OD and SS index all can reach integrated wastewater discharge standard (GB8978-1996) first discharge standard.
On-the-spot preparation mud generally adopts tap water (or well water), but the mud that adopts the surface water preparation is arranged also, at this moment, the concentration of supernatant C OD is except relevant with factors such as polyacrylamide addition, clay organic content, also with the COD concentration of preparation mud institute water with wherein dissolved organic matter content is relevant.The surface water of Beijing-Shanghai high speed situ part worker being put preparation mud detects, COD generally is no more than 200mg/L, supernatant C OD generally is no more than 100mg/L behind the coagulating sedimentation, consider the organic matter of clay and add polyacrylamide, supernatant C OD can not surpass 150mg/L yet, can meeting tier 2 emission standard, water quality is better than the farming matter standard of pouring water.
Relevant toxicology test shows that the residual volume of acrylamide monomer in polymkeric substance should be less than 0.05%.The used product monomer content of the present invention can meet the demands less than 0.02%; After adding polyacrylamide and carrying out solid-liquid separation, according to adding the dose estimation, the concentration of polyacrylamide PAM and acrylamide AM is lower than maximum permissible concentration value 1mg/L and the 0.01mg/L of PAM and AM in the tap water in the supernatant liquor of the present invention.The supernatant liquor acrylamide concentration of actual measurement is 0.003mg/L to the maximum, also less than Japanese sewage discharge tentative standard limit value
Six. the environment of bed mud and ecological security assessment
The discarded slurry post precipitation is wanted the earthing landfill in the present invention, carries out land reclamation then.Therefore be necessary to carry out anion-polyacrylamide to soil property influence and the toxic relevant evaluation of plant-growth.The relevant criterion of still not having at present anion-polyacrylamide and acrylamide monomer limiting concentration in the soil.But the wheat planting test-results of carrying out according to existing document and this research, anion-polyacrylamide helps improving the physico-chemical property of soil, crop growth is had favorable influence, and monomer can be decomposed very soon, can not have ecological safety hidden danger.
1. anion-polyacrylamide (PAM) is to the influence of soil physical property and root system
Soil particle has improved the physical behavior of soil effectively to the absorption of PAM, increases soil water-stable granule number, reduces the soil weight, improves perviousness and porosity, improves the moisture content of soil, has maintained good Soil structure.
(1) to the influence of the soil weight
There are some researches show that with the increase of PAM amount of application, the soil weight is on a declining curve.
(2) to the influence of Soil structure and porosity
Correlative study shows, uses PAM and can play chessom, slow down soil water evaporation, regulates the effect of the vaporous condition of liquid manure of soil.
(3) to the influence of soil permeability and moisture
The hollow billet water yield of soil increases to some extent, and veneer of soil percent water content also increases to some extent.Therefore, the anion-polyacrylamide of precipitation in the bed mud will help to reduce surface runoff and the deep percolation after the rainfall, strengthen the water-holding power and the water retention property of soil.
2. anion-polyacrylamide is to the influence of farm crop
Pertinent literature shows: anion-polyacrylamide can make corn yield increasing; Research to soybean fertility and output also shows about anion-polyacrylamide, and anion-polyacrylamide not only can not produce harmful effect to the soybean fertility, has production-increasing function on the contrary; The precipitation bed mud that this research is carried out studies show that the growth test of wheat wheat growth is also had no adverse effect, and to sum up thinks, generally can not have a negative impact to farm crop.
Seven. discarded slurry site disposal test
1. technical process
On the basis of previous experiments chamber test,, researched and proposed discarded slurry site disposal technical process as shown in Figure 2 in conjunction with engineering reality.Handle discarded slurry and in suction pit, carry out, at first estimate the volume of discarded slurry according to the size of suction pit; Measure the unit weight of mud again; Determine to add dose according to the pre-stage test result then, add the solid anion-polyacrylamide in suction pit; Stir in suction pit with slush pump, until generating floc sedimentation; After staticly settling for some time, supernatant liquor up to standard is disposed to outside the pond; Bed mud earthing landfill on the spot directly or after the dehydration, the suction pit behind the landfill can carry out the farm crop farming.
2. discarded slurry treatment unit
According to the site disposal technical process route of design, energy-conserving and environment-protective Lao Wei institute and the safe company of Wuxi Glan cooperate, and have developed the discarded slurry treatment unit.
Its major parts and function are as follows:
Medicine system: adopt the solid dosing method, be made up of drug storage bucket and dosing motor, utilize the charging machine of rotation axis to carry out dosing, rotating speed is adjustable with adding dose.
Recycle pump (slush pump) system: by cyclic water tank, circulating mud pump and rising pipe are formed.Medicament from medicine system enters cyclic water tank, enter recycle pump together with mud, finish the mixing of medicament and liquid, rising pipe sprays and enters in the suction pit, the circulation that utilizes circulating-pump outlet to form is realized the reaction of medicament and mud, the good floc sedimentation of formation reaction in suction pit is realized solid-liquid separation.
Fresh water pump system: after precipitation for some time, open fresh water pump, the clear water on top is discharged.
Floating drum system: with above-mentioned three system integration one and equipment is suspended on liquid level.
Controlling box: control dosing motor, the start and stop of recycle pump and fresh water pump.
3. site disposal test
(1) test site
Test in place has been carried out three times altogether, all carries out in Beijing-Shanghai high speed 6 mark building sites, 8 work area.
(2) content of the test and process
Mud density and pending mud volume are estimated in the scene; According to add the dose test-results according to the laboratory, calculating adds dose; Dosing in treatment unit; The discarded slurry treatment unit is put into suction pit, open dosing motor and slush pump simultaneously, carry out dosing and stirring, in suction pit, form floc sedimentation, staticly settle after stopping to stir; Open the fresh water pump draining; After discharging clear water, equipment is hung out with grab machine; Fetch earth suction pit is carried out landfill.
(3) test-results and analysis
1) the discarded slurry treatment unit can be suspended in the suction pit, possesses functions such as quantitative dosing, stirring, discharging supernatant liquor, satisfies discarded slurry site disposal function needs substantially.
2) adopt the solid dosing, utilize slush pump to stir, in suction pit, can generate better floc sedimentation, the post precipitation supernatant liquor is limpider, the coagulation and sedimentation experiment total result is good.
3) chemical oxygen demand (COD) (COD) and suspended substance (SS) index of discharging clear water can reach the integrated wastewater discharge standard secondary standard after testing.
4) the single settling tank treatment time is handled total cost less than 3 yuan/m less than 3h
3, much smaller than the outward transport expense.
5) by site test results as can be known, aspect such as the technical process of originally researching and proposing, cost analysis up to standard from execute-in-place, environment considers it all is feasible.
Eight. the scope of application of the present invention:
Be applicable to the processing of railway, Road Bridge Pile Foundation boring discarded slurry (non-bentonite slurry).
Nine. patent main technical details of the present invention:
Add pharmacy variety: anionic polyacrylamide
Add dose: density is 1100kg/m
3, 1150kg/m
3And 1200kg/m
3Mud, the optimum dose that adds is respectively 50mg/L, 100mg/L and 240mg/L
Dosing method: directly add solid chemicals
Treatment time:＜3h
Handle unit volume mud cost:＜3 yuan/m
3
The chemical oxygen demand (COD) (COD) and suspended substance (SS) index of discharging clear water can reach the integrated wastewater discharge standard secondary standard; Acrylamide concentration is 0.003mg/L to the maximum, less than Japanese sewage discharge tentative standard limit value.
The precipitation bed mud helps improving the physico-chemical property of soil, and crop growth is not had adverse influence.
Claims (7)
1, process for treating waste sludge resulted from bridge drilling, comprise flocculation agent kind, dosing method and add dose and select, it is characterized in that: described flocculation agent kind is selected anion-polyacrylamide for use, adopt the solid dosing method, determine to add dose according to pending mud density, directly use the discarded slurry pond, in the discarded slurry pond, flocculate, precipitation, solid-liquid separation as the chemical flocculation reactor, staticly settle back supernatant liquor discharging, the direct innoxious landfill of the bed mud of post precipitation.
2, process for treating waste sludge resulted from bridge drilling according to claim 1 is characterized in that: density is 1100kg/m
3, 1150kg/m
3And 1200kg/m
3Mud, the suitable dose that adds is respectively 40～60mg/L, 90～110mg/L and 230～250mg/L, sedimentation time is 60min.
3, process for treating waste sludge resulted from bridge drilling according to claim 2 is characterized in that: density is 1100kg/m
3Mud adds preferably 50mg/L of dose; Density is 1150kg/m
3Mud add preferably 100mg/L of dose, density is 1200kg/m
3Mud add preferably 240mg/L of dose.
4, process for treating waste sludge resulted from bridge drilling according to claim 1, it is characterized in that: further comprising the supernatant liquor analysis of experiments, described supernatant liquor analysis of experiments comprises: (1) polyacrylamide is to the contribution test of COD, (2) clay of preparation mud is to the contribution test of COD, the analytical test up to standard of (3) supernatant liquor.
5, process for treating waste sludge resulted from bridge drilling according to claim 4, it is characterized in that: described polyacrylamide is tested to utilize the polyacrylamide solution of distilled water compound concentration for 100mg/L and 200mg/L the contribution of COD, and the COD value of two kinds of concentration correspondences is respectively 110mg/L and 210mg/L.
6, process for treating waste sludge resulted from bridge drilling according to claim 1, the environment and the ecological security assessment that it is characterized in that: further comprising bed mud, described bed mud environment and ecological security assessment comprise: (1) anion-polyacrylamide (PAM) is to the influence of soil physical property and root system, and (2) anion-polyacrylamide is to the influence of farm crop.
7, process for treating waste sludge resulted from bridge drilling according to claim 6 is characterized in that: described anion-polyacrylamide (PAM) comprises the influence of soil physical property and root system: (1) to the influence of the soil weight, (2) to the influence of Soil structure and porosity, (3) influence to soil permeability and moisture.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863608A (en) * | 2010-06-02 | 2010-10-20 | 骆嘉成 | Solid-liquid separation process for drilled pile waste mud |
| CN104445860A (en) * | 2014-11-02 | 2015-03-25 | 北京工业大学 | Mud and water separation method for waste drilling sludge of cast-in-situ bored pile |
| CN106761500A (en) * | 2017-02-17 | 2017-05-31 | 中国十七冶集团有限公司 | The environment-friendly type mud circulating system of ultra-deep waters cast-in-situ bored pile |
| CN107159676A (en) * | 2017-04-21 | 2017-09-15 | 中铁四局集团有限公司 | It is a kind of to improve the method that diaphram wall slurry coat method recycles efficiency |
| CN108178490A (en) * | 2017-12-19 | 2018-06-19 | 中铁十八局集团有限公司 | A kind of drilled pile waste mud secondary hardening solid-liquid separation treatment method |
| CN108285254A (en) * | 2018-04-18 | 2018-07-17 | 南京林业大学 | A kind of the stabilization processing unit and processing method of heavy metal pollution mud |
| CN110372160A (en) * | 2019-06-17 | 2019-10-25 | 浙江省建工集团有限责任公司 | A kind of cast-in-situ bored pile Muddy Bottoms waste material slurry curing separating process |
| CN115196711A (en) * | 2022-06-24 | 2022-10-18 | 成都理工大学 | Method for circularly treating waste liquid of rock core drilling mud |
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2009
- 2009-08-12 CN CN200910166426A patent/CN101618935A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863608A (en) * | 2010-06-02 | 2010-10-20 | 骆嘉成 | Solid-liquid separation process for drilled pile waste mud |
| CN101863608B (en) * | 2010-06-02 | 2013-04-10 | 骆嘉成 | Solid-liquid separation process for drilled pile waste mud |
| CN104445860A (en) * | 2014-11-02 | 2015-03-25 | 北京工业大学 | Mud and water separation method for waste drilling sludge of cast-in-situ bored pile |
| CN106761500A (en) * | 2017-02-17 | 2017-05-31 | 中国十七冶集团有限公司 | The environment-friendly type mud circulating system of ultra-deep waters cast-in-situ bored pile |
| CN107159676A (en) * | 2017-04-21 | 2017-09-15 | 中铁四局集团有限公司 | It is a kind of to improve the method that diaphram wall slurry coat method recycles efficiency |
| CN107159676B (en) * | 2017-04-21 | 2019-11-26 | 中铁四局集团有限公司 | A method of it improving diaphram wall slurry coat method and efficiency is recycled |
| CN108178490A (en) * | 2017-12-19 | 2018-06-19 | 中铁十八局集团有限公司 | A kind of drilled pile waste mud secondary hardening solid-liquid separation treatment method |
| CN108285254A (en) * | 2018-04-18 | 2018-07-17 | 南京林业大学 | A kind of the stabilization processing unit and processing method of heavy metal pollution mud |
| CN110372160A (en) * | 2019-06-17 | 2019-10-25 | 浙江省建工集团有限责任公司 | A kind of cast-in-situ bored pile Muddy Bottoms waste material slurry curing separating process |
| CN115196711A (en) * | 2022-06-24 | 2022-10-18 | 成都理工大学 | Method for circularly treating waste liquid of rock core drilling mud |
| CN115196711B (en) * | 2022-06-24 | 2023-06-16 | 中国地质调查局呼和浩特自然资源综合调查中心 | Method for circularly treating waste liquid of core drilling mud |
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Application publication date: 20100106 |