CN109020115A - A kind of processing method of coal chemical industry oily sludge - Google Patents
A kind of processing method of coal chemical industry oily sludge Download PDFInfo
- Publication number
- CN109020115A CN109020115A CN201810908706.6A CN201810908706A CN109020115A CN 109020115 A CN109020115 A CN 109020115A CN 201810908706 A CN201810908706 A CN 201810908706A CN 109020115 A CN109020115 A CN 109020115A
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- CN
- China
- Prior art keywords
- extractant
- oily sludge
- sludge
- oily
- chemical industry
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/002—Sludge treatment using liquids immiscible with water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/32—Hydrocarbons, e.g. oil
Abstract
The invention discloses a kind of processing methods of coal chemical industry oily sludge, it is stirred after oily sludge to be added to extractant heating according to a certain percentage in extraction kettle, then it is separated by solid-liquid separation by screw centrifuge, to the oily substance rectifying recycling extractant and oily substance separated, the methods of sludge burning and biodegrade for separating carry out harmless treatment.This method technical matters is simple, and processing cost is low, can recycle substance, and extractant can recycle, pollution of the coal chemical industry oily sludge to environment can be greatly lowered using this method, the recycling of oils can turn waste into wealth, and obtain good economic value.
Description
Technical field
The invention belongs to sludge treatment field, more specifically more particularly to a kind of processing side of coal chemical industry oily sludge
Method.
Background technique
Coal chemical industry oily sludge is that deposit silt to get off etc. some solid in coal chemical industrial waste water processing processing operational process
Body little particle accumulates over a long period to form sludge deposition in the bottom of waste water storage tank, influences the day-to-day operation of entire technique, it is therefore desirable to
It regularly clears up waste water storage tank and the oily sludge cleared out is handled, mitigate the harm to environment.
The ingredient of greasy filth is considerably complicated, and pilling up time is longer, and processing difficulty is bigger, due to processing equipment one-time investment compared with
Height, economic benefit is lower, in the 1940s, foreign countries, which begin to research oily sludge, is effectively treated technology, develops a variety of sides
Method.Currently, the main methods of processing oily sludge are generally speaking divided into minimizing and recycling treatment both at home and abroad.Sludge
Minimizing must be thought deeply in conjunction with the mode of final disposal, be the pilot process for serving resource target, lack among this
Process, recycling will be unable to realize.Sludge resource technology is conducive to the sustainable development to environment and resource, helps to establish
Circular economy unifies social benefit, economic benefit mutually with environmental benefit.How current decrement demand is met, simultaneously
Following recycling development is taken into account, is the key point formulated sludge treatment policy and carry out technology path type selecting.At oily sludge
Reason is with minimizing, recycling and harmless turns to principle.The processing method of general oily sludge has: mechanical phonograph recorder separation, is burnt bioanalysis
Burning method, conditioning demulsification method and landfill method etc..But these methods can all cause certain pollution to environment.
Summary of the invention
The purpose of the present invention is to provide a kind of processing methods of coal chemical industry oily sludge, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of processing method of coal chemical industry oily sludge, includes the following steps:
S1, in the ratio of 1:1~3 it is separately added into oily sludge and extractant in a kettle, is then heated to 40-55
DEG C, it stirs at low speed 10-30min and oily sludge is well dispersed in extractant；
S2, the mixture of above-mentioned oily sludge and extractant is put into a centrifuge, is centrifuged under conditions of 3000r/min
5min；
S3, it liquid phase oil water mixture will be separated carries out rectifying, cooling under conditions of 200 DEG C, recycle in rectifying still
Remaining oily substance, separates the mixture of extractant and water after cooling, the extractant after separation continuously adds in extraction kettle
Cycling extraction, sewage transport to sewage treatment plant's processing rear discharge up to standard；
S4, the sludge separated is sent into incinerator after tentatively drying and is burned, or carry out biodegrade.
Preferably, extractant is oiliness extractant.
Compared with prior art, the beneficial effects of the present invention are: the present invention uses treatment by extraction oily sludge, this method
Technical matters is simple, and processing cost is low, can recycle substance, and extractant can recycle, can using this method
Pollution of the coal chemical industry oily sludge to environment is greatly lowered, the recycling of oils can turn waste into wealth, and obtain good economy
Value.
Detailed description of the invention
Fig. 1 is process flow diagram of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
The composition measurement of oily sludge:
Moisture content is measured using gravimetric method and soxhlet extraction respectively, (uses gravimetric method and Soxhlet containing sand filtration and oil content
Extraction method is known to the skilled person), specific targets are shown in Table 1.
The composition of 1 oily sludge of table, wt%
| Ingredient | Moisture content | Oil content | Sand factor |
| Numerical value | 6.41 | 41.08 | 52.51 |
Embodiment 1
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 40 DEG C is then heated to, stirs at low speed
10min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 70.04%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 2
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 40 DEG C is then heated to, stirs at low speed
15min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 73.04%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 3
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 40 DEG C is then heated to, stirs at low speed
20min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 73.15%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 4
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 40 DEG C is then heated to, stirs at low speed
25min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 73.24%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 5
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 40 DEG C is then heated to, stirs at low speed
25min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 73.37%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 6
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 45 DEG C is then heated to, stirs at low speed
20min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 77.48%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 7
It is separately added into oily sludge and extractant in the ratio of 1:1 in a kettle, 50 DEG C is then heated to, stirs at low speed
20min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 79.23%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 8
It is separately added into oily sludge and extractant in the ratio of 1:2 in a kettle, 55 DEG C is then heated to, stirs at low speed
20min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 80.02%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 9
It is separately added into oily sludge and extractant in the ratio of 1:2 in a kettle, 50 DEG C is then heated to, stirs at low speed
20min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 85.69%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
Embodiment 10
It is separately added into oily sludge and extractant in the ratio of 1:3 in a kettle, 50 DEG C is then heated to, stirs at low speed
20min is well dispersed in oily sludge in extractant.It is centrifuged to obtain extraction phase and raffinate phase again.Use gravimetric method
Measuring extraction yield with soxhlet extraction is 86.01%.
Note: extraction yield wt%=1- (oil content/g of raffinate phase sludge) (oil content/g in oily sludge) × 100%
It can be seen that by comparative examples 1-10 from the dosage and energy consumption for saving extractant and consider, in oily sludge
It is 1:2 with extractant ratio, when extraction time 20min and extraction temperature are 50 DEG C, oily removal rate reaches in oily sludge
85% or more.The wasting of resources caused by direct emission and environmental pollution can be effectively avoided using the method, and can be returned
The oil content in oily sludge is received, oily sludge can be made to obtain the recycling of resource, while solving problem of environmental pollution.
The present invention and routine
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of processing method of coal chemical industry oily sludge, which comprises the steps of:
S1, in the ratio of 1:1~3 it is separately added into oily sludge and extractant in a kettle, is then heated to 40-55 DEG C, it is low
Speed stirring 10-30min is well dispersed in oily sludge in extractant；
S2, the mixture of above-mentioned oily sludge and extractant is put into a centrifuge, is centrifuged under conditions of 3000r/min
5min；
S3, it liquid phase oil water mixture will be separated carries out rectifying, cooling under conditions of 200 DEG C, recycle remaining in rectifying still
Oily substance, separate the mixture of extractant and water after cooling, the extractant after separation, which continuously adds in extraction kettle, to be recycled
Extraction, sewage transport to sewage treatment plant's processing rear discharge up to standard；
S4, the sludge separated is sent into incinerator after tentatively drying and is burned, or carry out biodegrade.
2. a kind of processing method of coal chemical industry oily sludge according to claim 1, it is characterised in that: extractant is oiliness
Extractant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908706.6A CN109020115A (en) | 2018-08-10 | 2018-08-10 | A kind of processing method of coal chemical industry oily sludge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810908706.6A CN109020115A (en) | 2018-08-10 | 2018-08-10 | A kind of processing method of coal chemical industry oily sludge |
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| CN109020115A true CN109020115A (en) | 2018-12-18 |
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| CN201810908706.6A Pending CN109020115A (en) | 2018-08-10 | 2018-08-10 | A kind of processing method of coal chemical industry oily sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718085A (en) * | 2020-06-11 | 2020-09-29 | 中石大蓝天(青岛)石油技术有限公司 | Solid waste treatment method |
Citations (4)
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|---|---|---|---|---|
| CN101041541A (en) * | 2007-04-23 | 2007-09-26 | 辽河石油勘探局 | Oil soil treatment technique for tank cleaning |
| JP2009106802A (en) * | 2007-10-26 | 2009-05-21 | Tokyo Electric Power Co Inc:The | Pcb-containing oil sludge treatment method |
| CN103693825A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Resource treatment method of oil-containing sludge |
| CN103693834A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Resource combined treatment method of oil-containing sludge |
-
2018
- 2018-08-10 CN CN201810908706.6A patent/CN109020115A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101041541A (en) * | 2007-04-23 | 2007-09-26 | 辽河石油勘探局 | Oil soil treatment technique for tank cleaning |
| JP2009106802A (en) * | 2007-10-26 | 2009-05-21 | Tokyo Electric Power Co Inc:The | Pcb-containing oil sludge treatment method |
| CN103693825A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Resource treatment method of oil-containing sludge |
| CN103693834A (en) * | 2012-09-28 | 2014-04-02 | 中国石油天然气股份有限公司 | Resource combined treatment method of oil-containing sludge |
Non-Patent Citations (1)
| Title |
|---|
| 梁红涛: "《最新化工生产工艺设计与化工产品检测技术手册 下》", 31 March 2004, 银声音像出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111718085A (en) * | 2020-06-11 | 2020-09-29 | 中石大蓝天(青岛)石油技术有限公司 | Solid waste treatment method |
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Application publication date: 20181218 |
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