CN107226518A - A kind of gas station circulating water treatment method - Google Patents
A kind of gas station circulating water treatment method Download PDFInfo
- Publication number
- CN107226518A CN107226518A CN201610167920.1A CN201610167920A CN107226518A CN 107226518 A CN107226518 A CN 107226518A CN 201610167920 A CN201610167920 A CN 201610167920A CN 107226518 A CN107226518 A CN 107226518A
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- CN
- China
- Prior art keywords
- red mud
- gas station
- water
- water treatment
- circulating
- 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.)
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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
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
Abstract
The present invention relates to solid waste red mud recycling field, specially a kind of method of gas station circulating water treatment, it is adaptable to make flocculant process gas station recirculated water (using water comprising double vertical tube, scrubbing tower and wet electrical dust precipitators etc.) using Bayer process red mud.Liquid flocculant is made using solid waste red mud is produced in alumina producing, the dedusting cooling washing water process for supporting gas station cleaning system equipment in alumina producer.Treated red mud (red mud liquid flocculant) is added in gas station circular water treating system and is sufficiently mixed, optimize the settling property of suspension in recirculated water, subsequently into high concentrtion integral water purifier, oil removal is effectively removed, so as to reach gas station circulating cooling water quality requirement.Meanwhile, red mud filtrate, which is added to, is recycled back to ditch, for neutralizing circulating backwater, makes full use of the alkalescence of red mud.The present invention will make solid waste (red mud) get utilization, while reducing gas station circulating water treatment cost.
Description
Technical field
The present invention relates to solid waste red mud recycling field, at specially a kind of gas station recirculated water
The method of reason, it is adaptable to using Bayer process red mud make flocculant process gas station recirculated water (comprising double vertical tubes,
Scrubbing tower and wet electrical dust precipitator etc. use water).
Background technology
Fuel needed for Aluminium hydroxide roasting process in process for making alumina is producer gas, therefore is aoxidized
Gas station of aluminium manufacturer is to specialize in alumina producer roaster coal gas and set.The gas purification of alumina producer gas station is used
Three-level cleaning system, the first order is that every gas burner configures a double vertical tube, and second and third grade is centralized arrangement
Scrubbing tower and wet cottrell.Gas station recirculated water mainly supplies double vertical tubes of gas station cleaning system, washed
The dedusting cooling slurry of the equipment such as tower, wet cottrell is washed, it is (outstanding that recirculated water mainly contains solid impurity
Float) and some organic pollutants.The circulating water treatment method discharged to it typically uses addition flocculant,
The method of coagulation, precipitation, improves the settling property of suspension in recirculated water, greatly improves post precipitation processing effect
Really, the purpose of decontamination cycle water is reached.But such a method haves the shortcomings that reagent cost is high, flocculant into
This nearly accounts for gas station circulating water treatment totle drilling cost half or so.
And red mud is produced pollution waste residue in aluminum oxide production process, average often produces 1 ton of oxidation
Aluminium about produces red mud more than 1.5 tons.Substantial amounts of red mud sufficiently effective can not be utilized, and can only rely on large area
Stockyard stack, occupy a large amount of soils, serious pollution also caused to environment.The production of substantial amounts of red mud
Production on the mankind, life cause it is many both directly and indirectly influence, so subtracting to greatest extent
The yield of few red mud and harm, realize that the recycling of red mud by all kinds of means is extremely urgent.Each composition of Bayer process red mud
Content (wt%) be：SiO23%~20%, CaO 2%~8%, Al2O310%~20%, Fe2O330%~
60%, Na2O 2%~10%, TiO2Micro~10%, loss on ignition 10~15%.
The content of the invention
It is an object of the invention to provide a kind of method of gas station circulating water treatment, the life of recycling aluminum oxide
While waste (red mud) being produced in production, the gas treatment station of high-efficiency and economic.
The technical scheme is that：
A kind of gas station circulating water treatment method, first by filtering red mud, red mud filtrate is preserved for neutralizing circulation
Backwater, filter residue drying, ground 200~400 mesh sieve, with Na2CO3For fluxing agent calcination activation, salt is added
Acid adjusts pH to 7.0, obtains liquid flocculant；The red mud liquid flocculant made is added to gas station recirculated water
In processing system, improve the effect of settling of suspension in recirculated water, effectively remove oil removal.
Described gas station circulating water treatment method, sintering temperature be 600~1000 DEG C, soak time be 1.0~
2.0h。
Described gas station circulating water treatment method, the red mud liquid flocculant made is directly added and mixed into pipeline
Clutch, is handled subsequently into water purifier, so that water outlet reaches gas station circulating cooling water quality requirement,
The dosage of red mud liquid flocculant is 10~100ml/m3Recirculated water.
Advantages of the present invention and have the beneficial effect that：
1st, raw material of the present invention is easy to get, in alumina producer, gas station coal gas for needed for being provided alumina producer production,
Red mud is the contaminative waste residue of the generation in production alumina process, therefore abundant raw material.
2nd, liquid flocculating agent formulation process is simple in the present invention, it is easy to store.
3rd, processing method is simple to operate in the present invention, and preferably, cost is low for processing waste water effect.
Brief description of the drawings
Fig. 1 is gas station circulating water treatment process flow chart of the present invention.
Embodiment
As shown in figure 1, the method for gas station circulating water treatment of the present invention, using producing solid in alumina producing
Liquid flocculant is made in waste red mud, and the dedusting for supporting gas station cleaning system equipment in alumina producer is cold
But water process is washed.Treated red mud (red mud liquid flocculant) is added to circulating water treatment system of gas station
Pipe-line mixer in system is sufficiently mixed, the settling property of suspension in optimization recirculated water, subsequently into high concentrtion
Integral water purifier, effectively removes oil removal, so that gas station circulating cooling water quality requirement is reached, then through heat
Enter gas station after pond, cooling tower, water cooling pond.Meanwhile, red mud filtrate, which is added to, is recycled back to ditch, is used for
Circulating backwater is neutralized, the alkalescence of red mud is made full use of.
In the present embodiment, gas station circulating water treatment method detailed process is as follows：
First by filtering red mud, red mud filtrate is preserved for neutralizing circulating backwater, filter residue drying is ground
200~400 mesh sieves (mesh sieve of the present embodiment 300), with Na2CO3For fluxing agent calcination activation, add hydrochloric acid and adjust
PH obtains red mud liquid flocculant to 7.0 or so.The red mud liquid flocculant made is added into gas station to follow
In ring water treatment system (pipe-line mixer), improve the effect of settling of suspension in recirculated water, effectively remove outstanding
Float.Wherein, red mud sintering temperature is 600~1000 DEG C (the present embodiment is 800 DEG C), soak time is 1.0~
2.0h (the present embodiment is 1.5h).The red mud liquid flocculant made is directly added into pipe-line mixer, then
Handled into high concentrtion integral water purifier, so that water outlet reaches gas station circulating cooling water quality requirement,
Dosage is 10~100ml/m3(the present embodiment is 50ml/m3) recirculated water.
Embodiment result shows that the present invention will make solid waste (red mud) get utilization, and drops simultaneously
Di Liao gas stations circulating water treatment cost.
Claims (3)
1. a kind of gas station circulating water treatment method, it is characterised in that：First by filtering red mud, red mud filtrate is protected
Deposit for neutralizing circulating backwater, filter residue drying, ground 200~400 mesh sieve, with Na2CO3Roasted for fluxing agent
Activation is burnt, hydrochloric acid is added and adjusts pH to 7.0, obtain liquid flocculant；The red mud liquid flocculant made is added
Into gas station circular water treating system, improve the effect of settling of suspension in recirculated water, effectively remove oil removal.
2. gas station circulating water treatment method according to claim 1, it is characterised in that：Sintering temperature is
600~1000 DEG C, soak time is 1.0~2.0h.
3. gas station circulating water treatment method according to claim 1, it is characterised in that：It is red by what is made
Mud liquid flocculant is directly added into pipe-line mixer, is handled subsequently into water purifier, so that water outlet reaches
To gas station circulating cooling water quality requirement, the dosage of red mud liquid flocculant is 10~100ml/m3Circulation
Water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610167920.1A CN107226518A (en) | 2016-03-23 | 2016-03-23 | A kind of gas station circulating water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610167920.1A CN107226518A (en) | 2016-03-23 | 2016-03-23 | A kind of gas station circulating water treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107226518A true CN107226518A (en) | 2017-10-03 |
Family
ID=59932321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610167920.1A Pending CN107226518A (en) | 2016-03-23 | 2016-03-23 | A kind of gas station circulating water treatment method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107226518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873900A (en) * | 2022-05-31 | 2022-08-09 | 湖南平安环保股份有限公司 | Deep dehydration treatment process for conditioning municipal sludge by comprehensively utilizing red mud |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849833A (en) * | 2012-09-28 | 2013-01-02 | 天津莱特化工有限公司 | High performance flocculant for wastewater treatment |
| CN103723807A (en) * | 2013-12-04 | 2014-04-16 | 江苏双圆袋鼠服饰有限公司 | Preparation method of flocculating agent for dyeing wastewater treatment |
| CN104925921A (en) * | 2014-03-18 | 2015-09-23 | 沈阳铝镁设计研究院有限公司 | Method for preparing composite flocculant for printing and dyeing wastewater decolorizing treatment by using red mud |
-
2016
- 2016-03-23 CN CN201610167920.1A patent/CN107226518A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102849833A (en) * | 2012-09-28 | 2013-01-02 | 天津莱特化工有限公司 | High performance flocculant for wastewater treatment |
| CN103723807A (en) * | 2013-12-04 | 2014-04-16 | 江苏双圆袋鼠服饰有限公司 | Preparation method of flocculating agent for dyeing wastewater treatment |
| CN104925921A (en) * | 2014-03-18 | 2015-09-23 | 沈阳铝镁设计研究院有限公司 | Method for preparing composite flocculant for printing and dyeing wastewater decolorizing treatment by using red mud |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114873900A (en) * | 2022-05-31 | 2022-08-09 | 湖南平安环保股份有限公司 | Deep dehydration treatment process for conditioning municipal sludge by comprehensively utilizing red mud |
| CN114873900B (en) * | 2022-05-31 | 2023-10-03 | 湖南平安环保股份有限公司 | Advanced dewatering treatment process for comprehensively utilizing red mud in municipal sludge conditioning |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171003 |