CN101172738A - Innocent treatment method for oil-containing sewage sludge - Google Patents
Innocent treatment method for oil-containing sewage sludge Download PDFInfo
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- CN101172738A CN101172738A CNA2007101501479A CN200710150147A CN101172738A CN 101172738 A CN101172738 A CN 101172738A CN A2007101501479 A CNA2007101501479 A CN A2007101501479A CN 200710150147 A CN200710150147 A CN 200710150147A CN 101172738 A CN101172738 A CN 101172738A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a method for the harmless treatment of oil-containing mud, and the method includes the following steps: first, the oil-containing mud is gathered; second, the collected fluid oil-containing mud undergoes isotrope, and after a certain period of isotrope mixture, various kinds of oil-containing mud are fully mixed, thereby forming liquid oil-containing mud which is stable in physical and chemical property; third, the mixed liquid oil-containing mud is transmitted to a microorganism aerobic ferment treatment device to undergo the first ferment of the oxidation of the aerobic microorganism of the oil-containing mud; fourth, oil-containing mud is transformed into the biological mud for dehydration and condensation; fifth, a second ferment treatment is conducted; sixth, the fermented mud is transformed into the organic fertilizer which is used in the soil improvement, garden greening or crop fertilization. The invention has the advantage that the cost in mud dehydration is greatly reduced as the method of the invention has low cost, simple operation, and small investment and occupation area. The method can transform the oil-containing mud into good organic fertilizer which can be used in agricultural production, so that the aim of the clean production and environment protection is achieved and the method has good prospect for popularization.
Description
Technical field
The present invention relates to a kind of treatment process, particularly a kind of method that is used for the oily sludge harmless treatment that oil production and the course of processing produce to mud.
Background technology
The processing of the oily sludge that the oil production and the course of processing produce, it is a global difficult problem, a lot of engineering technical personnel and experts and scholars did unremitting effort for this reason, had also issued a lot of fruitful achievements, but never found a kind of reasonable processing mode.So for the oily sludge of oil production and course of processing generation, most enterprises still adopt the mode of landfill to handle at present, also have indivedual enterprises to drop into huge fund, carry out burning disposal; The enterprise's introduction that also has or the pyrolysis oil removing of development of new, and then the method for manufacturing building materials.Above-mentioned these methods for being the processing of the oily sludge of purpose with the environmental protection, in fact all belonging to pollutent and shift the pollution problem that does not all fundamentally solve oily sludge.Because residual a large amount of petroleum substance in the oily sludge, in the middle of the environment that these materials are discharged, be certain to environment is polluted, even landfill is to fixed place, also inevitably because seepage with the passage of time causes the phreatic pollution in locality, also can be because of weather and variation of temperature, cause the volatilization of a part of petroleum substance and polluted air.So landfill disposal is actually a kind of irresponsible treatment process that What the eye doesn't see, the heart doesn't grieve for; As for burning,, often ignored the atmospheric pollution that the volatilization of burning process petroleum substance causes although obtained the effect of highly significant in minimizing, aspect innoxious.Therefore, incineration technology says on the whole and still needs further perfectly that especially the investment of this treatment process is big, running cost is too high, remains an insoluble problem.Recently, also have oily sludge is at first carried out the pyrolysis oil removing, and then sneak into the method for earth brickmaking, the achievement that this method obtains aspect innoxious is very significant, but the same characteristics big, that running cost is high and operation easier is big of investing that exist are promoted and are got up also to have very big difficulty.
In recent years, oily sludge is being carried out aspect the microbial fermentation processing, very big progress is also arranged, generally all be confined to after the oily sludge dehydration, add and promote to carry out the solid fermentation processing behind the fermentation preparation, but because the oily sludge PetroChina Company Limited. class material that the oil production and the course of processing produce and other organic component contents are too high, handle by simple disposable microbe fermentation method, be difficult to reach the ideal treatment effect, its basic reason is exactly in the solid fermentation process, the energy that microorganism is required and the transmission of nutritive substance, lack approach more smoothly, cause fermenting process control difficulty big, the level of response of oily sludge fermentation is low, treatment effect can't normally be brought into play, and therefore can not obtain excellent popularization always.But show from a lot of data in the past, all be in the oily sludge processing after focusing on of a research carried out processed, attempt the oily sludge after the dehydration is carried out microbial fermentation, the opinion aerobic fermentation that has, the opinion anaerobically fermenting that has, but treatment effect is not fine, because fermenting after the oily sludge dehydration, no matter be to adopt aerobic fermentation or employing anaerobically fermenting, all, be difficult to promote because the exchange of the matter and energy that needs in the microbial life activity can't smooth and easyly be carried out.
Summary of the invention
For solving the problem that exists in the above-mentioned technology, the purpose of this invention is to provide a kind of method of oily sludge harmless treatment, handle by two-step microbial fermentation oily sludge, make fermentation reaction carry out fully, thoroughly, treatment time is short, saves floor space, improves the effect of handling.
For achieving the above object, the technical solution used in the present invention provides a kind of method of oily sludge harmless treatment, and this method may further comprise the steps:
1., in petroleum refining process, the different location can produce the different liquid oily sludge of part with occasion, at first, with these mud centralized collection to together.
2., will collect liquid together oily sludge and carry out homogeneous, mix homogenizing process through one section, make various oily sludge thorough mixing, form the liquid oily sludge of the relatively stable isostatic of physics and chemical property;
3., the liquid oily sludge behind the mixing homogeneous is transported to the microorganism aerobic fermentation processing unit, carry out the aerobic microbiological oxidation fermentative processing first time of oily sludge, in this process, add and bite oily microbial strains, by this microbial strains the organic substance in the oily sludge is carried out absorption degradation, in the aerobic microbiological oxidation reaction apparatus of oily sludge, temperature need be controlled at 20-80 ℃ of scope, normally carry out to guarantee the aerobic microbiological oxidizing reaction; Through TOC, dissolved oxygen, ammonia nitrogen and the phosphatization of oily sludge are tested the detection data analysis, in the aerobic microbiological oxidation reaction apparatus, add the nutrition medicament that comprises nitrogenous fertilizer and phosphate fertilizer in time, accurately the wind supply quantity of control reaction process is controlled between the 1-15mg/L dissolved oxygen in the liquid oily sludge; The contact reacts time of oily sludge and this microbial strains was controlled between 20-80 hour in the microorganism aerobic fermentation unit; In the aerobic fermentation process of oily sludge, contained petroleum substance and other organic substances in the mud, the life Metabolic activity by microorganism is converted into carbonic acid gas, water and microbe, and a such process makes oily sludge be converted into biological sludge;
4., be converted into biological sludge through the oily sludge after the microorganism aerobic fermentative processing, the biological sludge water ratio is more than 90%, be input to water extracter dewater concentrate after, general dewatering machine can be reduced to 70-80% with the moisture content in the liquid biological sludge, and the biological sludge after dehydration concentrates becomes thick solid-state biological sludge;
The water ratio of the solid-state biological sludge after 5., basis concentrates, in solid-state biological sludge, add canebreak in proportion, the biological sludge water ratio that adds canebreak is controlled at about 50-60%, after the ratio interpolation biology in 2-5 kilogram per ton became thoroughly decomposed agent, fully stirring mixed raw material then; The biological sludge that mixes after stirring is carried out the fermentative processing second time, in second time fermentative processing process, the biological sludge that both will mix after stirring is deposited in the compost place, covers one deck plastic film above or seals with foundry loam, carries out During High-Temperature Composting as the peasant and ferments; Or be transported to the ready-made fermentation cabin of purchasing and ferment, be beneficial to increase the wetting ability of biological sludge and as the content of plant nutrient ingredient;
6., through the biological sludge after the fermentation for the second time, contain a large amount of soil ulmin and class soil ulmin, as organic fertilizer, be used for soil improvement, afforestation or farm crop fertilising, thereby realize the resource utilization purpose of oily sludge ultimate disposal.
This method is reduced to the oleaginousness in the oily sludge of discharge to meet the requirement of state-set standard less than 3000mg/kg.
Effect of the present invention is because the present invention mainly is a method of utilizing two-step microbial fermentation; At first, make petroleum substance and other organic substances in the oily sludge be converted into carbonic acid gas, water and microorganism cells body, oily sludge is converted into biological sludge by the first step aerobic fermentation method.At last, add microorganism-decomposing agent again and add canebreak, carry out the fermentation second time, promoted becoming thoroughly decomposed of biological sludge, improve soil ulmin and class humus content in the biological sludge, be converted into the high-quality organic fertilizer.This method processing cost is cheap, simple to operate, less investment, and floor space is little, has the excellent popularization prospect.And, after oily sludge is handled through the first step aerobic fermentation, be converted into biological sludge, microorganism cells body in the biological sludge has good flocculating effect under the liquid state like this, make biological sludge in dehydration, the usage quantity of polymeric flocculant greatly reduces, if temperature and dewatering machine type selecting are suitable, even can remove adding of polymeric flocculant from, make the cost of sludge dewatering obtain very big reduction.Utilize this treatment process, can make oily sludge transform into the high-quality fertilizer material and be used for agriculture production, thereby realize cleaner production, the purpose of protection environment.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the method for oily sludge harmless treatment of the present invention.
As shown in Figure 1, the method for oily sludge harmless treatment of the present invention, this method may further comprise the steps:
1., in petroleum refining process, the different location can produce the different liquid oily sludge of part with occasion, at first, with these mud centralized collection to together.
2., will collect liquid together oily sludge and carry out homogeneous, mix homogenizing process through one section, make various oily sludge thorough mixing, form the liquid oily sludge of the relatively stable isostatic of physics and chemical property;
3., the liquid oily sludge behind the mixing homogeneous is transported to the microorganism aerobic fermentation processing unit, carry out the aerobic microbiological oxidation fermentative processing first time of oily sludge, in this process, add and bite oily microbial strains, by this microbial strains the organic substance in the oily sludge is carried out absorption degradation, in the aerobic microbiological oxidation reaction apparatus of oily sludge, temperature need be controlled at 20-80 ℃ of scope, normally carry out to guarantee the aerobic microbiological oxidizing reaction; Through TOC, dissolved oxygen, ammonia nitrogen and the phosphatization of oily sludge are tested the detection data analysis, in the aerobic microbiological oxidation reaction apparatus, add the nutrition medicament that comprises nitrogenous fertilizer and phosphate fertilizer in time, accurately the wind supply quantity of control reaction process is controlled between the 1-15mg/L dissolved oxygen in the liquid oily sludge; The contact reacts time of oily sludge and this microbial strains was controlled between 20-80 hour in the microorganism aerobic fermentation unit; In the aerobic fermentation process of oily sludge, contained petroleum substance and other organic substances in the mud, the life Metabolic activity by microorganism is converted into carbonic acid gas, water and microbe, and a such process makes oily sludge be converted into biological sludge;
4., be converted into biological sludge through the oily sludge after the microorganism aerobic fermentative processing, the biological sludge water ratio is more than 90%, be input to water extracter dewater concentrate after, general dewatering machine can be reduced to 70-80% with the moisture content in the liquid biological sludge, and the biological sludge after dehydration concentrates becomes thick solid-state biological sludge;
The water ratio of the solid-state biological sludge after 5., basis concentrates, in solid-state biological sludge, add canebreak in proportion, the biological sludge water ratio that adds canebreak is controlled at about 50-60%, after the ratio interpolation biology in 2-5 kilogram per ton became thoroughly decomposed agent, fully stirring mixed raw material then; The biological sludge that mixes after stirring is carried out the fermentative processing second time, in second time fermentative processing process, the biological sludge that both will mix after stirring is deposited in the compost place, covers one deck plastic film above or seals with foundry loam, carries out During High-Temperature Composting as the peasant and ferments; Or be transported to the ready-made fermentation cabin of purchasing and ferment, be beneficial to increase the wetting ability of biological sludge and as the content of plant nutrient ingredient;
6., through the biological sludge after the fermentation for the second time, contain a large amount of soil ulmin and class soil ulmin, as organic fertilizer, be used for soil improvement, afforestation or farm crop fertilising, thereby realize the resource utilization purpose of oily sludge ultimate disposal.
Because the solid content of oily sludge and the content of organic substance are very high, so, the control of the control of reaction and the microbe fermentation method of organic sewage has very big difference, the microbiological oxidation that is different from organic sewage is here handled, when the design reaction unit, to take into full account and prolong the reaction times, want to carry out microbial reaction thoroughly, the contact reacts time of oily sludge and microorganism in the reaction unit, should be controlled between 20-80 hour, if the reaction times is lower than 20 hours or surpass 80 hours, just be not worth it economically.The aerobic microbiological fermentative processing stage of oily sludge, it is the step of whole oily sludge treating processes most critical, operation process can be continous way also can be sequence batch (, through such processing, even the crude oil of same weight, also can make oleaginousness in the mud of last discharge be reduced to the requirement of " the pollution substance control criterion in the agricultural mud " that meet national regulation, less than 3000mg/kg.
After oily sludge undergoes microbial fermentation and handles, it no longer has been the oily sludge on the original meaning, its character is consistent through the residual active sludge after the biochemical treatment with general organic sewage, contained organism substantially all belongs to the microorganism cells body, belong to typical biological sludge, it is the good raw material of making organic fertilizer, but after these sludge dewatering dryings, it is big to form the mud degree of compactness, be insoluble in water, what directly be applied to the soil can not give play to good fertilizer efficiency, therefore, take among the present invention by adding canebreak and microorganism-decomposing agent, carry out for the second time fermentative processing and obtain new biological sludge,, improve soil ulmin and class content of humic substances in the mud with the loft that increases biological sludge and the solubleness of nutritive ingredient, the content of the petroleum substance of further degraded remnants finally makes oily sludge thoroughly be converted into the high-quality fertilizer material.In second time fermentative processing process, take the method for anaerobically fermenting or aerobic fermentation all can, the biological sludge that oily sludge is transformed after process microorganism aerobic fermentative processing, finally be converted into organic fertilizer, make oily sludge obtain harmless treatment, for final recycling provides condition, the mode of recycling can be used as organic fertilizer, also can be used for soil improvement, afforestation or farm crop fertilising.
The method of described cultivation of biting oily microbial strains and domestication is as follows:
From the various storage tank in refinery, oil field, the defeated place that has pipeline or contaminated-oil basin that the oil product leakage once took place on every side, gathering has oil stain and oil stain soil on every side.
Will be behind wheat bran or the flour disinfection mix with the soil sample of gathering, and be mixed into moisture 50% walk with clear water, walk can be agglomerating to hold with hand, unclamps hand and promptly scatter and be advisable.
Walk scattered cover with wet cloth and put into incubator and keep about 25 ℃ temperature to ferment, till growing white hair.
The mud that ferments sneaked in 25 ℃ the warm water, 100: 5: 1 by weight ratio adds sucrose, urea and dipotassium hydrogen phosphate, keeps temperature, slowly aeration.
Occur a large amount of yellow or brown flocs units after several days in the water, at this moment, stop aeration, treat the flocs unit post precipitation, skim part supernatant liquor behind the restock equivalent clear water, recovers aeration again.
In water, add an amount of sump oil, strengthen aeration rate, treat that sump oil disappears on the water surface after, replenish sump oil, and suitably increase the sump oil amount when replenishing sump oil each, simultaneously, water temperature is improved 5-10 ℃, rise to about 45 ℃ up to water temperature, keep water temperature.
Repeated for the 6th step every day and change water once.
So state is kept the time about two to three weeks, and bacterial classification just domestication is finished, and can be inoculated into the microorganism aerobic fermentation unit of oily sludge, participates in the first step aerobic fermentation of oily sludge.
Described microorganism-decomposing agent then is to buy the finished product EM bacterium bacterial classification that the Tianjin providence reaches Genie et Environnement, to sneak into wheat bran, beans pool, urea and potassium primary phosphate secondary fermentation and make.
Method according to above-described oily sludge harmless treatment, earlier liquid oily sludge being carried out microorganism aerobic ferments for the first time, make its be converted into dewater behind the biological sludge concentrated, add canebreak and microorganism-decomposing agent in the biological sludge after again dehydration being concentrated, carry out the fermentation second time, make biological sludge be converted into organic fertilizer, be used for soil improvement, afforestation etc., realize the disposal of resources of oily sludge.In first time aerobic fermentation process, because fermenting process is to carry out in liquid environment, vital movement desired material of microorganism and energy exchange efficiency ratio efficient height in solid-state environment, fermentation reaction carries out more fully, petroleum substance contained in the oily sludge and other organism all can be converted into carbonic acid gas, water and microbe, make the organic pollution materials in the oily sludge be converted into the biomass organic matter, on this process nature be one oily sludge carried out the process that innoxious and minimizing is handled.The solid state fermentation of biological sludge for the second time, be exactly a fermenting process of making organic fertilizer in essence, by fermentation for the second time, the hydrophilicity of biological sludge is improved, also increased after the fermentation simultaneously wherein soil ulmin and the content of class humic matter, make the mud really be converted into organic fertilizer.
The present invention has changed a lot of technician and has attempted to handle oily sludge by a step microbial fermentation method, makes it to reach innoxious, minimizing and resource utilization purpose thinking.If the liquid oily sludge is carried out anaerobically fermenting, long reaction time, reaction conditions are not easy control, and floor space is big, the facility investment height; If adopt solid-state oily sludge anaerobically fermenting, not only long reaction time, and the matter and energy exchange difficulty of carrying out owing to microbial reaction in the solid-state oily sludge is required, reaction is carried out not exclusively, and the ability of degraded objectionable impurities is not high; And liquid oily sludge is handled through the method for aerobic fermentation, though processing efficiency height, the ability of degraded objectionable impurities is strong, but in the final biological sludge that produces, owing to lack the nutrition of plant-growth, directly carry out the soil utilization and can not give play to good fertilizer efficiency, therefore, we are by a large amount of experiments, finally selected elder generation that liquid oily sludge is carried out aerobic fermentation, make oily sludge be converted into biological sludge, and then carry out the fermentation second time of compost treatment, make biological sludge finally be converted into the treatment process of organic fertilizer.
Embodiment:
Present technique began formally to implement in huge port petro-chemical corporation of CNPC in August, 2007, the enforcement of this technology, be to form with original device transformation, the first half of this technology, utilize original scum silica frost pond to make the oily sludge equalizing tank, structure and facility all do not change, without any new input; The aerobic microbiological oxidizing treater of oily sludge, just original oily sludge dehydration is irritated to transform and form, transformation process has just increased some pipelines, six water knockouts are together in series, five water knockouts of returning wherein as the aerobic microbiological oxidizing treater have increased aerating apparatus, the steam that the has kept original oily sludge water knockout facility of heating, a remaining dehydration is irritated and is used as the sludge settling pond, after making oily sludge through the aerobic microbiological oxide treatment, obtain enough settling times, reduce the operating load of centrifuge.
Through the oily sludge after the aerobic microbiological oxidative treatment, through check and analysis, oleaginousness is by 18% before handling, drop to 0.18%, organic content is up to 52.6%, various heavy metal content are the standard of heavy metal content in the agricultural mud of national regulation all, denser after these biological sludge dryings that are transformed by oily sludge, be not easy water-soluble cause, all be fully passable directly as organic fertilizer, also just because of there is such problem, huge port petro-chemical corporation has opened up a place that area is about 500 square metres, the processing place of the fermentation second time after the oily sludge dehydration that is used for handling through aerobic microbiological, and these are through the mud after fermentative processing for the second time, fertilising experiment by to farm crop has shown good fertilizer efficiency.The total cost that whole oily sludge is handled the engineering of transforming is 350,000 yuans, the running cost of entire treatment process only is about 200 yuans, no matter be investment or the running cost of implementing this technology, all cheap with the treatment process of reporting the oily sludge of being introduced than current various data, and treatment effect will be got well.
The present invention carries out the two-step microbial fermentation method to oily sludge and handles, in the entire treatment process, because after the first step aerobic microbiological method is handled, petroleum substance in the oily sludge and other organic pollutants, substantially all the life Metabolic activity by microorganism is converted into carbonic acid gas, water and microorganism cells body, make oily sludge be converted into simple biological sludge through the microorganism aerobic fermentative processing, do not contained petroleum substance in the mud substantially, possessed condition as the organic fertilizer raw material.By handle at aerobic fermentation and biological sludge that dehydration obtains after concentrating in, add the agent of becoming thoroughly decomposed of an amount of canebreak and biology, carry out the fermentative processing second time again, the content of soil ulmin and humic acid in the biological sludge is increased, be converted into the high-quality fertilizer material, thereby realize the purpose of the harmless treatment of oily sludge, for its final recycling provides condition.With other the processing oily sludge method relatively, in processing by microbe fermentation method, oily sludge not only is converted into simple biological sludge, and because the petroleum substance that is regardless of greatly wherein all is converted into carbonic acid gas, water and microorganism cells body with other organic substances, keep the angle of weighing apparatus from material, in this process because played tangible minimizing effect
Claims (2)
1. the method for an oily sludge harmless treatment, this method may further comprise the steps:
1., in petroleum refining process, the different location can produce the different liquid oily sludge of part with occasion, at first, with these mud centralized collection to together.
2., will collect liquid together oily sludge and carry out homogeneous, mix homogenizing process through one section, make various oily sludge thorough mixing, form the liquid oily sludge of the relatively stable isostatic of physics and chemical property;
3., the liquid oily sludge behind the mixing homogeneous is transported to the microorganism aerobic fermentation processing unit, carry out the aerobic microbiological oxidation fermentative processing first time of oily sludge, in this process, add and bite oily microbial strains, by this microbial strains the organic substance in the oily sludge is carried out absorption degradation, in the aerobic microbiological oxidation reaction apparatus of oily sludge, temperature need be controlled at 20-80 ℃ of scope, normally carry out to guarantee the aerobic microbiological oxidizing reaction; Through TOC, dissolved oxygen, ammonia nitrogen and the phosphatization of oily sludge are tested the detection data analysis, in the aerobic microbiological oxidation reaction apparatus, add the nutrition medicament that comprises nitrogenous fertilizer and phosphate fertilizer in time, accurately the wind supply quantity of control reaction process is controlled between the 1-15mg/L dissolved oxygen in the liquid oily sludge; The contact reacts time of oily sludge and this microbial strains was controlled between 20-80 hour in the microorganism aerobic fermentation unit; In the aerobic fermentation process of oily sludge, contained petroleum substance and other organic substances in the mud, the life Metabolic activity by microorganism is converted into carbonic acid gas, water and microbe, and a such process makes oily sludge be converted into biological sludge;
4., be converted into biological sludge through the oily sludge after the microorganism aerobic fermentative processing, the biological sludge water ratio is more than 90%, be input to water extracter dewater concentrate after, general dewatering machine can be reduced to 70-80% with the moisture content in the liquid biological sludge, and the biological sludge after dehydration concentrates becomes thick solid-state biological sludge;
The water ratio of the solid-state biological sludge after 5., basis concentrates, in solid-state biological sludge, add canebreak in proportion, the biological sludge water ratio that adds canebreak is controlled at about 50-60%, after the ratio interpolation biology in 2-5 kilogram per ton became thoroughly decomposed agent, fully stirring mixed raw material then; The biological sludge that mixes after stirring is carried out the fermentative processing second time, in second time fermentative processing process, the biological sludge that both will mix after stirring is deposited in the compost place, covers one deck plastic film above or seals with foundry loam, carries out During High-Temperature Composting as the peasant and ferments; Or be transported to the ready-made fermentation cabin of purchasing and ferment, be beneficial to increase the wetting ability of biological sludge and as the content of plant nutrient ingredient;
6., through the biological sludge after the fermentation for the second time, contain a large amount of soil ulmin and class soil ulmin, as organic fertilizer, be used for soil improvement, afforestation or farm crop fertilising, thereby realize the resource utilization purpose of oily sludge ultimate disposal.
2. the method for oily sludge harmless treatment according to claim 1 is characterized in that: this method is reduced to the oleaginousness in the oily sludge of discharge to meet the requirement of state-set standard less than 3000mg/kg.
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| CN101758057A (en) * | 2009-11-09 | 2010-06-30 | 广东奥美特集团有限公司 | Method for highly-efficiently performing hazard-free and biochemical treatment on alkaline residue from oil refinery |
| CN102351584A (en) * | 2011-07-15 | 2012-02-15 | 福建省亚热带植物研究所 | Sludge organic fertilizer for red soil and preparation method thereof |
| CN102351581A (en) * | 2011-06-27 | 2012-02-15 | 福建省亚热带植物研究所 | Sludge fermentation method and organic fertilizer prepared by the method |
| CN103736360A (en) * | 2013-12-05 | 2014-04-23 | 王兵 | Oil-based normal-temperature deep agent desorption and recovery process in waste oil-base mud or drilling cuttings |
| CN104803721A (en) * | 2014-01-27 | 2015-07-29 | 中国石油天然气股份有限公司 | Biological composting processing method of oil-based drilling wastes |
| CN106045255A (en) * | 2016-06-30 | 2016-10-26 | 濮阳市科润石油工程技术有限公司 | Microbiological treatment method of oily sludge |
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| CN109231450A (en) * | 2018-10-23 | 2019-01-18 | 南京大学环境规划设计研究院股份公司 | A kind of cohesion nutrient source SRB sludge immobilization particle and preparation method thereof for heavy metal containing wastewater treatment |
| CN111410392A (en) * | 2020-04-30 | 2020-07-14 | 袁登辉 | Biological treatment method for removing oil in oily sludge |
| CN114426383A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Biological harmless treatment method for high-oil-content sludge |
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| CN101758057A (en) * | 2009-11-09 | 2010-06-30 | 广东奥美特集团有限公司 | Method for highly-efficiently performing hazard-free and biochemical treatment on alkaline residue from oil refinery |
| CN102351581A (en) * | 2011-06-27 | 2012-02-15 | 福建省亚热带植物研究所 | Sludge fermentation method and organic fertilizer prepared by the method |
| CN102351584A (en) * | 2011-07-15 | 2012-02-15 | 福建省亚热带植物研究所 | Sludge organic fertilizer for red soil and preparation method thereof |
| CN103736360A (en) * | 2013-12-05 | 2014-04-23 | 王兵 | Oil-based normal-temperature deep agent desorption and recovery process in waste oil-base mud or drilling cuttings |
| CN103736360B (en) * | 2013-12-05 | 2016-01-27 | 王兵 | Discard the medicament normal-temperature deep desorption recovery process of oil base in oil-base mud or drilling cuttings |
| CN104803721A (en) * | 2014-01-27 | 2015-07-29 | 中国石油天然气股份有限公司 | Biological composting processing method of oil-based drilling wastes |
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| CN111410392B (en) * | 2020-04-30 | 2023-05-02 | 袁登辉 | Biological treatment method for removing oil in oily sludge |
| CN114426383A (en) * | 2020-09-22 | 2022-05-03 | 中国石油化工股份有限公司 | Biological harmless treatment method for high-oil-content sludge |
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