CN109626685A - Aluminium oxidation sewage treatment process - Google Patents

Aluminium oxidation sewage treatment process Download PDF

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Publication number
CN109626685A
CN109626685A CN201710931340.XA CN201710931340A CN109626685A CN 109626685 A CN109626685 A CN 109626685A CN 201710931340 A CN201710931340 A CN 201710931340A CN 109626685 A CN109626685 A CN 109626685A
Authority
CN
China
Prior art keywords
water
treatment process
sewage treatment
sewage
aluminium
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
Application number
CN201710931340.XA
Other languages
Chinese (zh)
Inventor
洪文刊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Food Co Ltd Chengdu Ming Road
Original Assignee
Food Co Ltd Chengdu Ming Road
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Food Co Ltd Chengdu Ming Road filed Critical Food Co Ltd Chengdu Ming Road
Priority to CN201710931340.XA priority Critical patent/CN109626685A/en
Publication of CN109626685A publication Critical patent/CN109626685A/en
Pending legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048—Purification of waste water by evaporation
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
    • C02F1/12—Spray evaporation
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • 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
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/02—Temperature
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/44—Time
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

The present invention discloses a kind of aluminium oxidation sewage treatment process, comprising the following steps: Step 1: filtering out the large granular impurity in waste water by large granular impurity filter screen；Step 2: 120 DEG C -150 DEG C at a temperature of vaporize sewage；Step 3: the sewage of vaporization is passed through spray assemblies, fallen under gravity after the large particulate matter and water drop contact in gas；Step 4: sending gas liquefaction at water and by the water after liquefaction into sedimentation basin；Step 5: natural sedimentation, sedimentation time 3h-5h；Step 6: 20g-30g sulfuric acid, oxidation reaction are added in every cubic metre of waste water；Step 7: by being discharged after the water filtering after oxidation reaction.Sewage load of the present invention is greatly and the effect of processing is preferable.

Description

Aluminium oxidation sewage treatment process
Technical field
The invention belongs to water treatment fields, and in particular to a kind of aluminium oxidation sewage treatment process.
Background technique
Aluminium shape surface electroplating processes need, in alkali cleaning and oxidation operation, to need by processes such as oil removing, alkali cleaning, oxidations Strong acid and highly basic are used, strong acid and highly basic react with aluminium base respectively, generate a large amount of aluminium ion, and aluminium ion enters washing Process is discharged together with water for cleaning, brings serious pressure to subsequent sewage treatment.And mixed sewage, impurity contain Amount is complicated, only more obvious to suspended matter (SS) removal in waste water using chemical precipitation, filter method, and for some heavy The removal rate of metal and salt, COD (COD) is low, becomes the source of aluminum profile industry heavily contaminated.Currently, there is no very Good treatment process can handle such problems.
Summary of the invention
The technical problems to be solved by the invention are in view of the above shortcomings of the prior art, to provide a kind of alumina sewage Treatment process, sewage load is greatly and the effect of processing is preferable.
The technical scheme adopted by the invention is that: a kind of aluminium oxidation sewage treatment process, comprising the following steps:
Step 1: filtering out the large granular impurity in waste water by large granular impurity filter screen；
Step 2: 120 DEG C -150 DEG C at a temperature of vaporize sewage；
Step 3: the sewage of vaporization is passed through spray assemblies, in gravity after the large particulate matter and water drop contact in gas Under the action of fall；
Step 4: sending gas liquefaction at water and by the water after liquefaction into sedimentation basin；
Step 5: natural sedimentation, sedimentation time 3h-5h；
Step 6: 20g-30g sulfuric acid, oxidation reaction are added in every cubic metre of waste water；
Step 7: by being discharged after the water filtering after oxidation reaction.
In one embodiment, in step 1, large granular impurity filter screen be three layers and its aperture along water inlet direction according to Secondary reduction.
In one embodiment, in step 2, vapourizing temperature is 150 DEG C.
In one embodiment, in step 4, condensing temperature is -10 DEG C.
In one embodiment, in step 5, sedimentation time 5h.
The beneficial effects of the present invention are: by filtering, vaporization, spray, liquefaction, precipitating, oxidation and filtering, effectively go In addition to the harmful substance in sewage, reach national emission standard, and since this technological operation is simple, can promote on a large scale.
Specific embodiment
Below in conjunction with specific embodiment, invention is further described in detail.
A kind of aluminium oxidation sewage treatment process, comprising the following steps:
Step 1: filtering out the large granular impurity in waste water by large granular impurity filter screen；
Step 2: 120 DEG C -150 DEG C at a temperature of vaporize sewage；
Step 3: the sewage of vaporization is passed through spray assemblies, in gravity after the large particulate matter and water drop contact in gas Under the action of fall；
Step 4: sending gas liquefaction at water and by the water after liquefaction into sedimentation basin；
Step 5: natural sedimentation, sedimentation time 3h-5h；
Step 6: 20g-30g sulfuric acid, oxidation reaction are added in every cubic metre of waste water；
Step 7: by being discharged after the water filtering after oxidation reaction.
In the present embodiment, in step 1, large granular impurity filter screen is three layers and its aperture is sequentially reduced along water inlet direction.
In the present embodiment, in step 2, vapourizing temperature is 150 DEG C.
In the present embodiment, in step 4, condensing temperature is -10 DEG C.
In the present embodiment, in step 5, sedimentation time 5h.
The present invention effectively eliminates having in sewage by filtering, vaporization, spray, liquefaction, precipitating, oxidation and filtering Evil substance, reaches national emission standard, and since this technological operation is simple, can promote on a large scale.
A specific embodiment of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention Protect range.

Claims (5)

1. a kind of aluminium oxidation sewage treatment process, it is characterised in that: the following steps are included:
Step 1: filtering out the large granular impurity in waste water by large granular impurity filter screen；
Step 2: 120 DEG C -150 DEG C at a temperature of vaporize sewage；
Step 3: the sewage of vaporization is passed through spray assemblies, in the work of gravity after the large particulate matter and water drop contact in gas It is fallen under；
Step 4: sending gas liquefaction at water and by the water after liquefaction into sedimentation basin；
Step 5: natural sedimentation, sedimentation time 3h-5h；
Step 6: 20g-30g sulfuric acid, oxidation reaction are added in every cubic metre of waste water；
Step 7: by being discharged after the water filtering after oxidation reaction.
2. aluminium oxidation sewage treatment process according to claim 1, it is characterised in that: in step 1, large granular impurity mistake Strainer is three layers and its aperture is sequentially reduced along water inlet direction.
3. aluminium oxidation sewage treatment process according to claim 1, it is characterised in that: in step 2, vapourizing temperature 150 ℃。
4. aluminium oxidation sewage treatment process according to claim 1, it is characterised in that: in step 4, condensing temperature be- 10℃。
5. aluminium oxidation sewage treatment process according to claim 1, it is characterised in that: in step 5, sedimentation time 5h.
CN201710931340.XA 2017-10-09 2017-10-09 Aluminium oxidation sewage treatment process Pending CN109626685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710931340.XA CN109626685A (en) 2017-10-09 2017-10-09 Aluminium oxidation sewage treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710931340.XA CN109626685A (en) 2017-10-09 2017-10-09 Aluminium oxidation sewage treatment process

Publications (1)

Publication Number Publication Date
CN109626685A true CN109626685A (en) 2019-04-16

Family

ID=66051177

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710931340.XA Pending CN109626685A (en) 2017-10-09 2017-10-09 Aluminium oxidation sewage treatment process

Country Status (1)

Country Link
CN (1) CN109626685A (en)

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Application publication date: 20190416