CN1583302A - Grease sand harmless treating technology - Google Patents
Grease sand harmless treating technology Download PDFInfo
- Publication number
- CN1583302A CN1583302A CN 200410024330 CN200410024330A CN1583302A CN 1583302 A CN1583302 A CN 1583302A CN 200410024330 CN200410024330 CN 200410024330 CN 200410024330 A CN200410024330 A CN 200410024330A CN 1583302 A CN1583302 A CN 1583302A
- Authority
- CN
- China
- Prior art keywords
- sand
- oil sludge
- oil
- sludge
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
A process for treating oily silt includes such steps as solid-liquid separating, reclaiming the oil, cleaning the sewage, proportionally mixing the solid with solidifying, deoiling, dewatering, lowering viscosity, solidifying, burning, and dusting the fume.
Description
One, technical field: the present invention relates to a kind of oil sludge and sand innoxious process for treating.
Two, background technology: oil sludge and sand is meant and produces in the Petroleum Production activity, is mainly derived from each link of crude oil transmission and processing procedure, by the mixture of crude oil and other organic matter polluted mud, sand, water.The thick material of brownish black of normally a kind of composition complexity of oil sludge and sand mainly is made up of water, silt and mineral oil three parts, and water, oil and silt present a kind of highly stable suspension emulsified state.Water in the oil sludge and sand can be divided into four classes, that is: free water, flco water, capillary water, particle water, be present in the free water between the mud flco space, gravitational settling by sewage sludge solid can partly be separated, flco water is hidden in the flco network internal, has only outer power to change flocculent structure and could part separate; Capillary water adheres between the single particle, must apply bigger external force, and pore is deformed could part be removed; Particle water is chemical bonding water, needs to change the chemical constitution and the hydrone state of sewage sludge solid by chemical action or high-temperature process, it could be removed.But the oil in the oil sludge and sand generally is divided into oil slick, oil emulsion, dissolving wet goods, and wherein oil emulsion accounts for the overwhelming majority, is the main cause that greasy filth scab degree is big, be difficult to processed.The mud granule in the oil sludge and sand and the fine grains of sand are generally all electronegative, and making most of particles in the oil sludge and sand is to repel mutually rather than attract each other, and is difficult to form the larger particles sedimentation and removes.Because the oil sludge and sand solid concentration is low, the moisture content height presents the suspended dispersed state again, thereby bulky.
The different oil sludge and sand of originating, as fresh and aging oil sludge and sand, it is formed and physical property all may have than big difference, as viscosity, moisture content, dehydration property, water-oil separating etc.The character that these are different makes some processing methods not have general applicability.
At present, being used for the method that oil sludge and sand handles mainly contains: (1) method of storing up is that a kind of building specially stacked the method that oil sludge and sand is left in the place concentratedly.。This can only be a kind ofly to deposit temporarily, and long-term storage does not meet environmental requirement, has in the end most and takes other method for innocent treatment to be handled.(2) solidifying facture is oily sludge is solidified or to be included in a kind of innocent treatment procedure in the inertia curing substrate by physico-chemical process.Concrete technology is a kind of to be oily sludge → dosing concentration and settlement dehydration → centrifugal dehydration → physical chemistry curing molding.Another kind is that oil sludge and sand → homogeneous removes oil tank → biological respinse de-oiling → concentrated → dehydration → cement, sand, curing agent → injection mould → off-centre vibration → demoulding → natural curing → ground ornamental slab for paving the floor, better to the oil-sand treatment effect that sand content is higher, relatively poor to the greasy filth processing that clay content is higher, the technology of suitability for industrialized production is immature.(3) landfill method is a kind of method of disposal of directly oil sludge and sand being imbedded landfill yard.The work flow that landfill is disposed is: mud collection → mud concentrate → is spread out and is pushed away flat → compacting → earth backing → compacting.Oil, silt particle resource contained in land occupation resource, the oil sludge and sand can not be recycled.(4) re-injection method is the processing method that superfine oil sludge and sand is recycled into high permeability formation, only is fit to some special blocks.The technology path of re-injection method is: oil sludge and sand → chemical treatment → physical filtering → allotment → re-injection.(5) partition method generally includes Separation of Solid and Liquid, water-oil separating, oil recovery and waste residue utilization etc.Separation process can be physical process, chemical process or bioprocess, or the combination of several processes.1. processed can be undertaken by natural subsidence or evaporation, or is directly undertaken by mechanical means, or is undertaken by gravitational settling or mechanical means after adding chemical agent.2. oil, water, mud (sand) three phase separation technology path commonly used are: the oil sediment → homogenize → Chemical Decomposition of the heating → separation → mechanical dehydration of heating → curing → microbiological treatment → mummification landfill.(6) the drying bed facture is to be made up side by side by bottom sand filter bed and gutter to form, and supplies with mud with pump or car, and mud is layered on the ground equably, by the evaporation and the land percolation effect of the sun or wind, through one period long period, with moisture removal wherein.(7) biological treatment is to utilize microorganism to make oil in the oil sludge and sand and other organic matter degradation, finally is converted into CO
2, water and cytoplasm.(8) burning method.Burn and to concentrate technologies such as preliminary treatment and drying through dehydration as last, just the mud cake that forms being delivered to special incinerator then burns, 800～850 ℃ of temperature, but can finish through the 30min burning, lime-ash can further utilize again, but need be with combustion adjuvant in the combustion process, the easy adhesion equipment of greasy filth mud cake, the equipment investment height, operational reliability is poor.
In the above-mentioned technology after direct landfill of oil sludge and sand or the curing landfill all have simple characteristics, but these class methods had both been wasted the energy, also might cause environmental pollution.All kinds of physical chemistry processing methods are many to be purpose to reclaim crude oil, and processing procedure need add chemical agent usually, needs special treatment facility, complex disposal process, and cost is higher.And crude oil recovery is not thorough, has waste water and waste residue secondary pollution problem, still need consider further to handle or comprehensive utilization.The biologic treating technique advantage is need not add chemical agent, and consumes energy is less, environmental protection, but soil cultivating method and composting process need the large tracts of land soil, and the bioreactor method still has waste sludge discharge, and the processing time is long, complicated operation.Burning method must carry out in the special incinerator of setting up, and can eliminate the harmful organic substance in the oil sludge and sand more up hill and dale, but the equipment investment height, needs to build special burning facility, needs to add combustion adjuvant, and the equipment operational reliability is poor.
Three, summary of the invention: purpose of the present invention is exactly the above-mentioned defective that exists at prior art, and a kind of oil sludge and sand innoxious process for treating that utilizes coal-burning boiler to burn mode is provided.
Technical scheme of the present invention comprises: (1) is carried out simple liquid to oil sludge and sand and is separated with solid, and isolated oil is recycled, and sewage carries out purified treatment; (2) interpolation of the oil sludge and sand after separation curing agent is cured processing, comprises secondary de-oiling, dehydration and unsticking, curing; (3) the oil sludge and sand solidfied material burns with boiler fired coal in coal-burning boiler, and gas fume after burning is discharging after deduster is handled, and slag is recycled.Described curing agent comprises that surfactant is TW-80, bleeding agent HFC-108, metal oxide XL-1, nucleus growth TF-2, shape-fixing agent TF-3, and its percentage by weight is respectively 0.1-10,0.1-5.5,1-20,1-30,1-50.
Advantage of the present invention: the one, easy and simple to handle, curing process is simple, and is with low cost, remarkable in economical benefits, applicable to all oil sludge and sand after the natural sedimentation dehydration, land oil, the oily contaminated soil of being landed, its oil content, water content, sand content are not had strict restriction.The 2nd, the oil sludge and sand after solidifying has improved the utilization rate of the renewable sources of energy of oil sludge and sand as the fuel of coal-burning boiler.The 3rd, the remaining quantity of the waste residue PetroChina Company Limited. class material after handling is low.The 4th, realized comprehensively utilization more oily, soil resource.Waste residue after the burning is as comprehensive utilization of slag.The 5th, equipment investment is little, and special equipment is few, is convenient to large-scale promotion application.
Four, description of drawings: accompanying drawing is the process chart of one embodiment of the present invention.
Five, the specific embodiment: with reference to accompanying drawing, techniqueflow of the present invention comprises:
1. to water content and the higher oil sludge and sand of oil content, utilize simple and easy three phase separation equipment, finish the simple three phase separation of oil, silt particle, water, isolated oil reclaims, isolated water reclaims and enters the oil extraction-generated waste water handling process, after oil sludge and sand focuses on and leaves standstill in the storage pool, concentrates to solidify and handles; For depositing ageing and the part oil sludge and sand of dehydration naturally for many years, can directly concentrate to solidify and handle.2. solidify processing procedure and be lifted into mixer with oil sludge and sand is sticking, stir with curing agent and mix (about two minutes).Comprise secondary de-oiling, dehydration and unsticking, curing.Wherein unsticking is to have utilized the viscosity of oil sludge and sand mainly to come from wherein contained colloidal substance, adopt alkaline matter to mix with oil sludge and sand, reduce the viscosity of oil on the one hand, it is hidden in the silt particle particle, on the other hand, destroy the emulsified state that oil combines with water, make the moisture that is contained in the emulsion from coming out, the curing drying with silt particle of being convenient to dewater.The solidification process of solidfied material is a hydration process, and at the aquation initial stage, solidfied material is based on the cohesion network structure, and cementing power is relatively poor, and the aquation later stage, the stronger chemical bond of intermolecular formation connected, and makes solidfied material have certain intensity based on crystal structure.The main composition-calcium carbonate of oil sludge and sand also participates in the hydration reaction process of curing materials, generates calcium aluminate of hydrated carbon, makes glued further increase.The OH that consumes in the hydration process
-, Ca
2+, oil sludge and sand provides a part, and the curing agent of adding provides a part.By regulating the addition of curing agent, can control the porosity and the hardness of cured product.When oil content or water content are higher, will add the curing agent of larger proportion, when oil content or water content are low, the additional proportion of curing agent will suitably reduce.When the oil-containing water content of oil sludge and sand fixedly the time, when the curing dose of input was big, the oil sludge and sand after the curing was Powdered, when the curing agent ratio that drops into hour, the oil sludge and sand after the curing is the bulky grain shape.When curing agent adds ratio when an amount of, just stirred the oil sludge and sand of coming out and be thick, place after 30 minutes, be converted into solid with certain porosity.According to the character of oil sludge and sand, the ratio by control adding curing agent can produce the solidfied material that is applicable to different coal-burning boiler requirement particle diameters.3. second stage unsticking: after the oil sludge and sand of precipitation mixed with curing agent is full and uniform, curing agent and oil sludge and sand generation physical-chemical reaction, oily matter is disperseed to be hidden in the grain structure of silt particle and curing agent, finish the unsticking of greasy filth in the oil sludge and sand, produce a large amount of heats simultaneously, oil sludge and sand is heated to 100 ℃, the moisture in the oil sludge and sand is volatilized away with the form of steam, finish the dehydration second time of oil sludge and sand.With the even mixed oil sludge and sand of curing agent, to stack after 20-40 minute, oil sludge and sand begins the heating and the water vapour of emerging, and then it is transferred to smooth place and turns over cool the stacking.4. the oil sludge and sand after solidifying under field conditions (factors), carry out air-dry, water content can drop to below 9% by 30%, changing water content final products less, that be suitable for burning into by the higher bulk of water content, bulky grain, powdery solid matter can be transported to the boiler room with it, or deposits under the natural conditions stand-by in the open air.5. the oil sludge and sand after solidifying is pressed coal program on the normal boiler with after boiler fired coal mixes in proportion, enters boiler combustion.6. lime-ash is pressed the cinder recycling.
Claims (3)
1 one kinds of oil sludge and sand innoxious process for treating is characterized in that: (1) is carried out simple liquid to oil sludge and sand and is separated with solid; (2) interpolation of the oil sludge and sand after separation curing agent is cured processing, comprises secondary de-oiling, dehydration and unsticking, curing; (3) the oil sludge and sand solidfied material processing of burning.
2, oil sludge and sand innoxious process for treating according to claim 1 is characterized in that: described curing agent comprises that surfactant, bleeding agent, metal oxide, nucleus are grown up, shape-fixing agent is formed.
3, oil sludge and sand innoxious process for treating according to claim 2, it is characterized in that: described surfactant is TW-80, bleeding agent HFC-108, metal oxide XL-1, nucleus growth TF-2, shape-fixing agent TF-3, and its percentage by weight is respectively 0.1-10,0.1-5.5,1-20,1-30,1-50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024330 CN1583302A (en) | 2004-06-12 | 2004-06-12 | Grease sand harmless treating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410024330 CN1583302A (en) | 2004-06-12 | 2004-06-12 | Grease sand harmless treating technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1583302A true CN1583302A (en) | 2005-02-23 |
Family
ID=34600888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410024330 Pending CN1583302A (en) | 2004-06-12 | 2004-06-12 | Grease sand harmless treating technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1583302A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386271C (en) * | 2005-11-10 | 2008-05-07 | 扬州大学 | Refused oil sand separating agent and preparation process thereof |
| CN101365550B (en) * | 2005-12-10 | 2012-05-09 | 爱丁堡大学董事会 | Method and apparatus for remedying contaminated land |
| CN103492050A (en) * | 2011-04-29 | 2014-01-01 | 吉奥森泰克咨询公司 | Method for volumetric reduction of organic liquids |
| CN107699309A (en) * | 2017-10-17 | 2018-02-16 | 河北岚山环保科技有限公司 | The imitative coal fuel system of oil sludge and sand solidification and technique |
| CN109574429A (en) * | 2019-02-14 | 2019-04-05 | 北京净界新宇环保科技有限公司 | A kind of method of heavy metal in solidifying oil sludge |
| CN109647871A (en) * | 2019-01-22 | 2019-04-19 | 杭州造品科技有限公司 | A kind of petroleum hydrocarbon contaminated soil hot wash complete set of equipments cleaning technique technique |
-
2004
- 2004-06-12 CN CN 200410024330 patent/CN1583302A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100386271C (en) * | 2005-11-10 | 2008-05-07 | 扬州大学 | Refused oil sand separating agent and preparation process thereof |
| CN101365550B (en) * | 2005-12-10 | 2012-05-09 | 爱丁堡大学董事会 | Method and apparatus for remedying contaminated land |
| CN103492050A (en) * | 2011-04-29 | 2014-01-01 | 吉奥森泰克咨询公司 | Method for volumetric reduction of organic liquids |
| CN103492050B (en) * | 2011-04-29 | 2016-08-17 | 吉奥森泰克咨询公司 | The method reducing organic liquid volume |
| CN107699309A (en) * | 2017-10-17 | 2018-02-16 | 河北岚山环保科技有限公司 | The imitative coal fuel system of oil sludge and sand solidification and technique |
| CN109647871A (en) * | 2019-01-22 | 2019-04-19 | 杭州造品科技有限公司 | A kind of petroleum hydrocarbon contaminated soil hot wash complete set of equipments cleaning technique technique |
| CN109574429A (en) * | 2019-02-14 | 2019-04-05 | 北京净界新宇环保科技有限公司 | A kind of method of heavy metal in solidifying oil sludge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100460355C (en) | Method for producing ceramic granule from oil sludge sand | |
| EP3624960B1 (en) | Method for removing organic and inorganic harmful substances from waste by means of wet mechanical separation | |
| CN110171934B (en) | Collaborative regeneration treatment method for waste incineration fly ash and construction waste | |
| CN108423959A (en) | A kind of Sludge resource utilization method based on pyrohydrolysis-pyrolysis charring | |
| US9327326B2 (en) | Geopolymer additives and methods of use for treatment of fluid fine tailings | |
| CN101633547B (en) | Resource processing method of petroleum-containing sludge in petroleum , comprehensive processing method of petroleum-containing sludge in petroleum and petrochemical and resource recycling method | |
| CN101962590B (en) | Regenerative coal produced by multiple kinds of oily sludge in oil refinery and preparation method thereof | |
| CN102874930B (en) | Dedicated filler for constructed wetland and preparation method for filler | |
| CN104190698A (en) | Method for restoring clayed soil of high-load heavy metal polluted site | |
| CN102357506A (en) | Method for wet treatment and resource utilization of household garbage | |
| CN101050100A (en) | Technique for producing production of ceramic aggregate from clinker burnt from household garbage and municipal sludge | |
| CN106587786B (en) | A kind of drilling wastes brick-making method | |
| CN110577349A (en) | Building slurry treatment process and application | |
| CN108101511A (en) | A kind of heavy metal pollution earth cooperation flying ash prepares the microwave sintering method of haydite | |
| CN102351565A (en) | Method for preparing water treatment phosphorus accumulation filler by sintering with household garbage incineration residues | |
| CN103011704B (en) | Method for preparing building brick from oil field oily sludge | |
| CN111362716A (en) | Ceramsite filter material prepared based on river sediment and method thereof | |
| CN1583302A (en) | Grease sand harmless treating technology | |
| CN101830612B (en) | Oil-containing sludge recycling process and device thereof | |
| CN107540255A (en) | A kind of method that building materials powder is prepared using river and lake mud and building waste | |
| CN1303020C (en) | Method for treating oilys ludge using three-phase separating technique | |
| CN111574192A (en) | Process for comprehensively treating various solid wastes into building materials | |
| KR100992510B1 (en) | Soil improving agent and method for treatment of sludge using the same | |
| CA2748484C (en) | Plant and method for melting and cleaning of snow and ice | |
| CN206428098U (en) | A kind of desulfurization sludge deep dehydration and heavy metals immobilization cooperate with processing unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |