CN106045255A - Microbiological treatment method of oily sludge - Google Patents

Microbiological treatment method of oily sludge Download PDF

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Publication number
CN106045255A
CN106045255A CN201610519397.4A CN201610519397A CN106045255A CN 106045255 A CN106045255 A CN 106045255A CN 201610519397 A CN201610519397 A CN 201610519397A CN 106045255 A CN106045255 A CN 106045255A
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CN
China
Prior art keywords
oily sludge
greasy filth
oil content
treatment
sludge
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Application number
CN201610519397.4A
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Chinese (zh)
Inventor
朱金才
陈荣
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濮阳市科润石油工程技术有限公司
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Priority to CN201610519397.4A priority Critical patent/CN106045255A/en
Publication of CN106045255A publication Critical patent/CN106045255A/en

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment

Abstract

The invention belongs to the field of petroleum pollutant treatment and particularly relates to a microbiological treatment method of oily sludge. The microbiological treatment method includes the steps of firstly, detecting the oil content data of the oily sludge, wherein the oil content data comprises treatment amount and oil content; secondly, calculating the adding amount of microbial remediation agent according to the treatment amount and oil content of the oily sludge, adding the microbial remediation agent into the oily sludge, and well mixing; thirdly, detecting the water content and oxygen content of the oily sludge, performing watering and tillage according to the detecting result; executing the fourth step after N days; fourthly, detecting the oil content of the oily sludge; ending the treatment process of the oily sludge if the oil content reaches the emission standard; returning to the third step if the oil content does not reach the emission standard. The microbiological treatment method has the advantages that the microbial remediation agent is added into the oily sludge to promote the fast reproduction of indigenous microorganisms, and accordingly the indigenous microorganisms in the sludge are used to perform biological degradation on petroleum substances, and an ideal treatment effect is achieved.

Description

A kind of microbial treatment method of oily sludge
Technical field
The invention belongs to petroleum hydrocarbons process field, be specifically related to the microbial treatment method of a kind of oily sludge.
Background technology
Oily sludge is Petroleum Production " association product ", in oil exploitation, collects in the defeated and course of processing and all can produce oil-containing Mud, this is also one of the primary pollution source of Petroleum Production.Many countries have all carried out oily sludge resource recovery technology Research, and define technology and the thinking of some maturations.Conventional main process has burning method, solidification method, quenched machinery Partition method, electrochemical process for treating and extraction etc..Burning method is to utilize that organic components in mud is higher, have certain calorific value Feature carry out disposing sludge, it is adaptable to various mud, treating capacity is big, it is more thorough to process, and technology is the most ripe, but exists Power consumption greatly, costly, the shortcoming that easily causes secondary pollution;Solidification method is to utilize physicochemical method to be included in by oily sludge Innocent treatment procedure in inertia curing substrate, it is adaptable to the mud that salinity is low and oil content is few, its technique can resource Changing and utilize, can be used for construction material so that it is cured product is dealt carefully with, but process conditions are harsh, technology is immature;Extraction Method is the method that crude oil recovery is utilized from oily sludge by the principle utilizing " similar compatibility ", it is adaptable to containing a large amount of difficult degradations Organic oily sludge, the oil after process, water, mud can effectively utilize, the most petroleum substance of recoverable, but Treatment effect for the relatively low oily sludge of content is the most inconspicuous;Quenched mechanical phonograph recorder separation is to be adjusted by certain means The character of solids group and ordered state, with the pretreatment operation under applicable different dehydration conditions, dehydrating effect obtains significantly Improve, mechanical dehydration performance is significantly improved, technology maturation, it is adaptable to all kinds of mud, but its PROCESS FOR TREATMENT amount is little, equipment with Processing cost is high, and the combination that will obtain dewatering machine equipment and the medicament commonly used is highly difficult;Electrochemical process for treating is profit With telluric electricity field and low-voltage, low current, redox reaction is introduced between Organic substance and inorganic matter, by complexity in soil Hydrocarbon is decomposed into CO2And H2O utilizes electric power to remove water therein, finely ground particle substance and heavy metal simultaneously, processes speed Degree is fast, yield is big, but is not suitable for processing substantial amounts of mud, and needs to expend a large amount of electric energy.
Existing Oil Containing Sludge Treatment also exists that many problems, such as cost be high, power consumption greatly, not environmentally etc., because of This treatment effect is the most undesirable.Increasingly strict along with the construction of environmental regulation system and law enforcement, deals carefully with oily sludge gesture Must go, oily sludge must be carried out by " country's promotion law on cleaner production " and " solid waste environmental pollution prevention and control method " requirement Harmless treatment.
Summary of the invention
The technical problem undesirable in order to solve existing Oil Containing Sludge Treatment treatment effect, the present invention provides a kind of The microbial treatment method of oily sludge.
The technical solution of the present invention is:
A kind of microbial treatment method of oily sludge, it is characterized in that and comprises the following steps:
1] the oil content data of oily sludge are detected;Described oil content data include treating capacity and oil content;
2] treating capacity and oil content according to oily sludge calculate microorganism renovation agent addition, then in oily sludge Add microorganism renovation agent mix homogeneously;
3] moisture content in detection oily sludge and oxygen content, carry out watering according to testing result and turn over;Step is performed after N days Rapid 4];
4] oil content of oily sludge is detected;If oil content reaches discharge standard, then terminate the processing procedure of oily sludge; If oil content is not up to discharge standard, then return step 3].
The microbial treatment method of above-mentioned oily sludge also includes step 0] pretreatment of oily sludge:
A] clear up stone, weeds and other foreign material near impurely after, dig and build Treatment of Sludge place;
B] after Treatment of Sludge place middle berth is set up defences and oozed cloth, backfill soil;
C] stone in cleaning oily sludge, woven bag, cotton yarn, it is thrown to Treatment of Sludge place after the foreign material such as branch.
Above-mentioned steps 2] in the calculation of microorganism renovation agent addition be:
W=ρGreasy filth×VGreasy filth×C×0.2/100
Wherein, W is microorganism renovation agent addition, kg;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3;C is Greasy filth oil content, %.
Above-mentioned steps 2] in also include adding bulking agent the step of mix homogeneously in oily sludge, described bulking agent Addition is:
M=ρGreasy filth×VGreasy filth×4/100
Wherein, M is bulking agent addition, kg;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3
Above-mentioned steps 2] in also include adding nutritional solution the step of mix homogeneously in oily sludge, described nutritional solution Addition is:
V=ρGreasy filth×VGreasy filth×C×0.05/ρNutritional solution
Wherein, V is nutritional solution addition, mL;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3;ρNutritional solutionIt it is battalion Nutrient solution density, kg/m3
Above-mentioned steps 2] in also include adding bio-fertilizer the step of mix homogeneously, described bio-fertilizer bag in oily sludge Include NH4Cl、Na3PO4、KH2PO4
The addition of above-mentioned bio-fertilizer is respectively: NH4Cl adds 0.06%, Na3PO4Add 0.03%, KH2PO4Add 0.06%;The addition of bio-fertilizer is mass percent.
The beneficial effects of the present invention is:
(1) present invention is by adding microorganism renovation agent by the way of in oily sludge, promotes that indigenous microorganism is the most numerous Growing, and then the indigenous microorganism directly utilized in mud carries out biodegradation to petroleum substance, technological operation is simple and safe, energy Source consumes less, processing cost is low, and whole processing procedure energy-conserving and environment-protective, secondary pollution, ideal treatment effect will not be produced, fit For the repair process of various oily sludges, oily sludge (less than the 10%) effect relatively low especially for oil content is more aobvious Write.
(2) present invention digs in advance and builds disposal of oily sludge place, backfills soil again, can avoid oil-containing after laying antiseepage cloth Mud directly contacts with antiseepage cloth, it is ensured that the permeability of oily sludge.Meanwhile, oily sludge carries out mixing with soil and can make soil Write bacterium to increase, combine with microorganism renovation agent and process, faster processing time and raising treatment effeciency.
(3) disposal field of oily sludge can be selected near impurely by the present invention, directly utilizes near impurely Soil carries out the in-situ immobilization of oily sludge and processes, and decreases the transhipment link of centre, improves treatment effeciency, reduce process Cost.
(4) present invention accurately calculates and strictly controls the interpolation of microorganism renovation agent, bulking agent, bio-fertilizer and nutritional solution Amount, improves soil environment so that it is under the state maintaining suitable micro-organisms degraded, to improve remediation efficiency.
Detailed description of the invention
The microbial treatment method of oily sludge provided by the present invention is to utilize indigenous microorganism to carry out oily sludge The method of repair process, particular by the growth and breeding of microorganism, decomposes petroleum substance consumption, makes petroleum pollution turn Turn to harmless organic substance or H2O and CO2.Whole process technical process has low cost, invests little, energy-conserving and environment-protective, to environment The feature of non-hazardous.
The process of present pre-ferred embodiments can be divided into following steps:
(1) pretreatment in place.
First arrange disposal field, the stone of disposal field, weeds, foreign material are cleaned out, use large-scale forklift to dig and build Disposal field, surrounding builds up cofferdam, compacting, and cofferdam is not less than 30cm, whole Treatment of Sludge place is laid antiseepage cloth, then uses Soil is backfilled by forklift.Backfill soil can avoid oily sludge directly to contact with antiseepage cloth, it is ensured that the permeability of oily sludge.
(2) preparation of construction.
Oily sludge is transported to disposal field, sorts out in place the foreign material such as stone, woven bag, cotton yarn, branch in greasy filth.
(3) sampling detection oily sludge initial oil content.
Using multidraw method to take oily sludge sample, fully mixed by oily sludge sample, before detection processes, oily sludge contains Oil mass data.
(4) microorganism renovation agent adds construction.
Microorganism renovation agent consumption is calculated, by microorganism renovation agent, bulking agent, life according to mud handling capacity, oil content Thing is fertile, nutritional solution is sprinkled upon on the greasy filth of place uniformly.Start rotary cultivator oily sludge is stirred repeatedly so that above additive and Then oily sludge mix homogeneously is paved.It is noted that prevent from destroying antiseepage cloth during rotary cultivator is turned over.
(5) regular maintenance.
In order to ensure moisture content in oily sludge, oxygen content, formulate regular maintenance planning chart, within every 7 days, sprinkle water, turn over once (concrete condition changes according to scene temperature, humidity environment), and construction maintenance, sampling detection is periodically carried out by special messenger.
(6) sampling detection greasy filth oil content.
Use multidraw method to take oily sludge sample, oily sludge sample is fully mixed, carries out self-inspection and send third party to examine Survey mechanism and detect final oily sludge oil content data.
(7) after trimestral repair process, the oil content of greasy filth is down to less than 0.3%, reaches discharge standard.
The present invention after test of many times and practical proof, draw the microorganism renovation agent in oily sludge and other add When adding the consumption employing mode calculated below of thing, treatment effect is preferable.
The calculation of microorganism renovation agent addition is:
W=ρGreasy filth×VGreasy filth×C×0.2/100
Wherein, W is microorganism renovation agent addition, t;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3;C is Greasy filth oil content, %.
The addition of bulking agent is:
M=ρGreasy filth×VGreasy filth×4/100
Wherein, M is bulking agent addition, kg;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3
The addition of nutritional solution is:
V=ρGreasy filth×VGreasy filth×C×0.05/ρNutritional solution
Wherein, V is nutritional solution addition, mL;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3;ρNutritional solutionIt it is battalion Nutrient solution density, kg/m3
The addition of bio-fertilizer is respectively: NH4Cl adds 0.06%, Na3PO4Add 0.03%, KH2PO4Add 0.06%; The addition of bio-fertilizer is mass percent.

Claims (7)

1. the microbial treatment method of an oily sludge, it is characterised in that: comprise the following steps:
1] the oil content data of oily sludge are detected;Described oil content data include treating capacity and oil content;
2] treating capacity and oil content according to oily sludge calculate microorganism renovation agent addition, then add in oily sludge Microorganism renovation agent mix homogeneously;
3] moisture content in detection oily sludge and oxygen content, carry out watering according to testing result and turn over;Step is performed after N days 4】;
4] oil content of oily sludge is detected;If oil content reaches discharge standard, then terminate the processing procedure of oily sludge;If containing Oil mass is not up to discharge standard, then return step 3].
The microbial treatment method of oily sludge the most according to claim 1, it is characterised in that: also include step 0] oil-containing The pretreatment of mud:
A] clear up stone, weeds and foreign material near impurely after, dig and build Treatment of Sludge place;
B] after Treatment of Sludge place middle berth is set up defences and oozed cloth, backfill soil;
C] cleaning oily sludge in foreign material after be thrown to Treatment of Sludge place.
The microbial treatment method of oily sludge the most according to claim 1 and 2, it is characterised in that: described step 2] in The calculation of microorganism renovation agent addition be:
W=ρGreasy filth×VGreasy filth×C×0.2/100
Wherein, W is microorganism renovation agent addition, kg;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3;C is greasy filth Oil content, %.
The microbial treatment method of oily sludge the most according to claim 3, it is characterised in that: described step 2] in also wrap Including and add bulking agent the step of mix homogeneously in oily sludge, the addition of described bulking agent is:
M=ρGreasy filth×VGreasy filth×4/100
Wherein, M is bulking agent addition, kg;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3
The microbial treatment method of oily sludge the most according to claim 4, it is characterised in that: described step 2] in also wrap Including and add nutritional solution the step of mix homogeneously in oily sludge, the addition of described nutritional solution is:
V=ρGreasy filth×VGreasy filth×C×0.05/ρNutritional solution
Wherein, V is nutritional solution addition, mL;ρGreasy filthIt is greasy filth density, kg/m3;VGreasy filthIt is greasy filth volume, m3;ρNutritional solutionIt it is nutritional solution Density, kg/m3
The microbial treatment method of oily sludge the most according to claim 5, it is characterised in that: described step 2] in also wrap Including and add bio-fertilizer the step of mix homogeneously in oily sludge, described bio-fertilizer includes NH4Cl、Na3PO4、KH2PO4
The microbial treatment method of oily sludge the most according to claim 6, it is characterised in that: the interpolation of described bio-fertilizer Measure respectively: NH4Cl adds 0.06%, Na3PO4Add 0.03%, KH2PO4Add 0.06%;The addition of bio-fertilizer is matter Amount percentage ratio.
CN201610519397.4A 2016-06-30 2016-06-30 Microbiological treatment method of oily sludge CN106045255A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110560479A (en) * 2019-09-20 2019-12-13 中国石油化工股份有限公司 In-situ bioremediation material for oil contaminated soil of well site and use method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101066829A (en) * 2007-06-28 2007-11-07 程建银 Comprehesive biodegrading process of oil-containing sludge
CN101172738A (en) * 2007-11-13 2008-05-07 天津莱特化工有限公司 Innocent treatment method for oil-containing sewage sludge
CN101786776A (en) * 2010-02-23 2010-07-28 北京欧泰克石油工程技术有限责任公司 Advanced treatment process of sludge containing oil
CN103667058A (en) * 2012-09-26 2014-03-26 中国石油天然气股份有限公司 Microbial composition for degrading chlorine-containing polycyclic aromatic hydrocarbon in oily sludge and treatment method utilizing same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101066829A (en) * 2007-06-28 2007-11-07 程建银 Comprehesive biodegrading process of oil-containing sludge
CN101172738A (en) * 2007-11-13 2008-05-07 天津莱特化工有限公司 Innocent treatment method for oil-containing sewage sludge
CN101786776A (en) * 2010-02-23 2010-07-28 北京欧泰克石油工程技术有限责任公司 Advanced treatment process of sludge containing oil
CN103667058A (en) * 2012-09-26 2014-03-26 中国石油天然气股份有限公司 Microbial composition for degrading chlorine-containing polycyclic aromatic hydrocarbon in oily sludge and treatment method utilizing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110560479A (en) * 2019-09-20 2019-12-13 中国石油化工股份有限公司 In-situ bioremediation material for oil contaminated soil of well site and use method

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Application publication date: 20161026