CN105749870A - Sewage adsorbent based on oily dross and usage thereof - Google Patents
Sewage adsorbent based on oily dross and usage thereof Download PDFInfo
- Publication number
- CN105749870A CN105749870A CN201610218539.3A CN201610218539A CN105749870A CN 105749870 A CN105749870 A CN 105749870A CN 201610218539 A CN201610218539 A CN 201610218539A CN 105749870 A CN105749870 A CN 105749870A
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- CN
- China
- Prior art keywords
- oil
- dross
- sewage
- sewage adsorbent
- adsorbent
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a sewage adsorbent based on oily dross. The sewage adsorbent is prepared through the following steps: (1) uniformly mixing oily dross and a dehydrating agent and then drying, thereby acquiring solid dross; (2) performing pyrolysis on the solid dross at 550-650 DEG C for 1-3 hours, thereby preparing solid residues; and (3) grinding and sieving the solid residues, and then removing oxides and ash components from the solid residues, thereby acquiring the sewage adsorbent. The sewage adsorbent can be used for removing COD and petroleum from the oil extraction sewage. The sewage adsorbent provided by the invention not only can be used for harmlessly disposing the oily dross but also can supply an absorbing material for disposing oil extraction sewage and can realize the circulating utilization of 'waste-resource-product' of an oil field united station.
Description
Technical field
The invention provides a kind of sewage adsorbent, particularly relate to a kind of sewage adsorbent using oil-containing dross to prepare, should
Adsorbent can be applied in oil recovery treatment.
Background technology
Oil-containing dross is to produce in the floation tank of field joint stations sewage treatment plant, usually contains a large amount of hydro carbons, viscosity is big,
Poor fluidity, if directly discharging, can take a large amount of soil, soil, water body and the air of surrounding being caused serious dirt simultaneously
Dye, jeopardizes health.The difficult problem processing the efforts at environmental protection of always puzzlement multi-purpose station sewage treatment plant of oil-containing dross.
The existing process technique of oil-containing dross burns after mainly having plate compression or centrifugal dehydration, be dehydrated after landfill and direct heap
Deposit.The usual moisture content of oil-containing dross is higher, becomes scum silica frost filter cake after plate compression or centrifugal dehydration, and volume can significantly be pressed
Contracting, but moisture content is still up to more than 85%, subsequent treatment difficulty.Generally the scum silica frost filter cake after dehydration is sent in incinerator
Burning, to remove oils organic matter therein, the lime-ash soil after burning is buried method and is processed.Burning process produces
Flue gas, by dedusting, drip washing PROCESS FOR TREATMENT so that it is in dust, after nitrogen oxides, sulfide etc. reaches discharge standard
Emptying.
CN101045600A discloses the processing method of a kind of oil-contained slag asphalt, is that scum silica frost is placed in batch type
Reactor stirs and reduces pressure distillation, when still interior reaction temperature reaches 370 DEG C, control heater switch, keep temperature until
Not distillating oil gas in still, material in rear taking-up still, cooling is shaped to bitumen product.The method can be by thorough for oil-containing dross nothing
Evilization, has certain applied value, but requires that scum silica frost is viscous crude scum silica frost, and application conditions is harsh, is not suitable for spread and makes
With.
Summary of the invention
The problem that present invention aims to oil-containing dross difficult treatment, proposes one and utilizes oil-containing dross preparation absorption
Agent the method that the adsorbent of preparation is applied to oil recovery treatment.It is harmless that the method is possible not only to make oil-containing dross obtain
Changing and dispose, the also process for oil extraction-generated waste water provides sorbing material.Realize the circulation of field joint stations " refuse-resource-product "
Utilize.
Realizing the technical scheme that above-mentioned purpose of the present invention used is:
A kind of sewage adsorbent based on oil-containing dross, described sewage adsorbent uses obtained by following methods: (1),
Oil-containing dross is mixed post-drying with dehydrating agent, prepares solid dross；
(2), carry out being pyrolyzed under conditions of 550～650 DEG C 1～3 hour by solid dross, prepare solid residue；
(3), after solid residue grinding, screening, remove oxide therein and ash content, i.e. obtain described sewage adsorbent,
Carbon content in sewage adsorbent is 88～92%.
Oil-containing dross described in step (1) derives from field joint stations sewage treatment plant floation tank or sewage from oil refinery
Reason station, the moisture content of oil-containing dross is 85～90w%, and oil content is 5～10w%.
In step (1), oil-containing dross is 2:1 with the mass ratio of dehydrating agent, and described dehydrating agent is Sulfates medicament and activity
The mixture of powdered carbon.
Solid dross is carried out being pyrolyzed 2 hours under conditions of 650 DEG C by step (2), logical nitrogen protection in pyrolytic process,
In pyrolysis condensation and separation of fixed gas, You Heshui may be recovered utilization.
Step (3) rinses with inorganic acid fluid and inorganic alkali lye successively, to remove oxide therein and ash content.
The purposes of above-mentioned sewage adsorbent in the present invention, for removing the COD in oil extraction-generated waste water and petroleum-type.
Compared with prior art, the invention have the advantages that 1, the present invention can reclaim for oil-containing dross
Utilize, be prepared into sewage adsorbent, it is achieved thereby that the purpose that refuse secondary utilizes.Meanwhile, in the application for
The requirement of raw material is relatively low, derives from field joint stations sewage treatment plant floation tank or the oil-containing dross of sewage from oil refinery treating stations
All can utilize, therefore applicability is wide, and suit large area to popularize use.2, the preparation method provided in the present invention
Simply, technique is uncomplicated, and production cost is relatively low.3, the sewage adsorbent that the present invention prepares can be directly used for removing
COD in oil extraction-generated waste water and petroleum-type, it is achieved that gather materials on the spot, recycling of using on the spot.
Accompanying drawing explanation
Fig. 1 is the preparation technology flow chart in the embodiment of the present invention.
Detailed description of the invention
Concrete operation method and the condition of the present invention is further illustrated below by embodiment, but protection scope of the present invention
It is not limited to following example.
Embodiment 1
The preparation method of the sewage adsorbent based on oil-containing dross provided in the present embodiment is as shown in Figure 1: first-selection is chosen
Certain field joint stations sewage treatment plant floation tank dewatered froth, wherein moisture content 85.4%, oil content 8.1%, contain above-mentioned
In oil float slag, 2:1 in mass ratio adds processed agent, mix and blend post-drying, prepares solid dross, described dehydration
Agent is the mixture of Sulfates medicament and activated carbon powder.Carry out being pyrolyzed under conditions of 650 DEG C 2 hours by solid dross,
Logical nitrogen protection in pyrolytic process, in pyrolysis condensation and separation of fixed gas, You Heshui recycles.After having reacted
Solid residue grinds, screening, and by acid solution, oxide is removed in alkali lye rinsing and ash content the most i.e. obtains adsorbent.
The sewage adsorbent prepared in the present embodiment uses static adsorptive method when processing oil extraction-generated waste water, is specially to 100mL
Sewage adds 2g adsorbent, before after 60 minutes adsorption treatment, the COD in oil extraction-generated waste water and petroleum-type are respectively by adsorbing
502.12mg/L and 45.31mg/L drops to 42.62mg/L and 5.83mg/L after absorption, reaches " integrated wastewater discharge mark
Accurate " in secondary discharge standard.
Embodiment 2
The preparation method of the sewage adsorbent based on oil-containing dross provided in the present embodiment is as shown in Figure 1: first-selection is chosen
Certain sewage from oil refinery treating stations dewatered froth, wherein moisture content 86.3%, oil content 7.7%, press in above-mentioned oil-containing dross
Mass ratio 2:1 adds processed agent, mix and blend post-drying, prepares solid dross.By solid dross at 600 DEG C
Under the conditions of carry out being pyrolyzed 3 hours, logical nitrogen protection in pyrolytic process, in pyrolysis condensation and separation of fixed gas, You Heshui
Recycle.React rear solid residue to grind, sieve, remove oxide with inorganic acid fluid, the rinsing of inorganic alkali lye
Then adsorbent is i.e. obtained after drying with ash content.
Claims (6)
1. a sewage adsorbent based on oil-containing dross, it is characterised in that: described sewage adsorbent uses with lower section
Obtained by method: (1), oil-containing dross is mixed post-drying with dehydrating agent, prepare solid dross；
(2), carry out being pyrolyzed under conditions of 550～650 DEG C 1～3 hour by solid dross, prepare solid residue；
(3), after solid residue grinding, screening, remove oxide therein and ash content, i.e. obtain described sewage adsorbent,
Carbon content in sewage adsorbent is 88～92%.
Sewage adsorbent based on oil-containing dross the most according to claim 1, it is characterised in that: in step (1)
Described oil-containing dross derives from field joint stations sewage treatment plant floation tank or sewage from oil refinery treating stations, oil-containing dross
Moisture content is 85～90w%, and oil content is 5～10w%.
Sewage adsorbent based on oil-containing dross the most according to claim 1, it is characterised in that: in step (1)
Oil-containing dross is 2:1 with the mass ratio of dehydrating agent, and described dehydrating agent is the mixture of Sulfates medicament and activated carbon powder.
Sewage adsorbent based on oil-containing dross the most according to claim 1, it is characterised in that: in step (2)
Carry out being pyrolyzed under conditions of 650 DEG C 2 hours by solid dross, logical nitrogen protection, condensation point in pyrolysis in pyrolytic process
The fixed gas, the You Heshui that separate out may be recovered utilization.
Sewage adsorbent based on oil-containing dross the most according to claim 1, it is characterised in that: in step (3)
Rinse with inorganic acid fluid and inorganic alkali lye successively, to remove oxide therein and ash content.
6. the purposes of the sewage adsorbent described in claim 1, for removing the COD in oil extraction-generated waste water and petroleum-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218539.3A CN105749870A (en) | 2016-04-11 | 2016-04-11 | Sewage adsorbent based on oily dross and usage thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218539.3A CN105749870A (en) | 2016-04-11 | 2016-04-11 | Sewage adsorbent based on oily dross and usage thereof |
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|---|---|
| CN105749870A true CN105749870A (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610218539.3A Pending CN105749870A (en) | 2016-04-11 | 2016-04-11 | Sewage adsorbent based on oily dross and usage thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601804A (en) * | 2017-09-12 | 2018-01-19 | 中国石油天然气集团公司 | A kind of method that self-heating moulding oily sludge pyrolysis prepares adsorbent |
| CN111013628A (en) * | 2019-12-20 | 2020-04-17 | 广东工业大学 | Carbon-based catalytic material and application thereof |
-
2016
- 2016-04-11 CN CN201610218539.3A patent/CN105749870A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107601804A (en) * | 2017-09-12 | 2018-01-19 | 中国石油天然气集团公司 | A kind of method that self-heating moulding oily sludge pyrolysis prepares adsorbent |
| CN111013628A (en) * | 2019-12-20 | 2020-04-17 | 广东工业大学 | Carbon-based catalytic material and application thereof |
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Application publication date: 20160713 |