CN1616362A - Automatic processing process for acid waste water containing fluorine - Google Patents
Automatic processing process for acid waste water containing fluorine Download PDFInfo
- Publication number
- CN1616362A CN1616362A CN 200410087884 CN200410087884A CN1616362A CN 1616362 A CN1616362 A CN 1616362A CN 200410087884 CN200410087884 CN 200410087884 CN 200410087884 A CN200410087884 A CN 200410087884A CN 1616362 A CN1616362 A CN 1616362A
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- CN
- China
- Prior art keywords
- waste water
- containing waste
- acidic fluoride
- processing process
- automatic processing
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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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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The automatic treating process of acid waste water containing fluorine includes the following steps: treating acid waste water containing fluorine in the regulating ponds; pumping the waste water into reactor and operating the pH controller to open the NaOH storing tank for neutralization; starting the CaCl2 storing tank and Al2(SO4)3 storing tank successively for mixing of 20-30 min; depositing the reacted waste water in inclined plate depositing pond for 60-120 min; and returning the treated water with fluorine content less than 10 mg/L into circulation system for reuse while dewatering sludge to obtain mud slag for comprehensive utilization. The said process has the features of high treating capacity, simple process, easily obtained material, low cost and high waste water treating effect.
Description
One, technical field:
The present invention discloses a kind of waste water treatment process, particularly a kind of acidic fluoride-containing waste water automatic processing process.
Two, background technology:
Adopt Ca (OH)
2, CaCl
2Precipitation adds Al
2(SO
4)
3In the Coagulation with Treatment graphite purification process, the fluoride waste of generation has the advantages that processing power is big, technology simple, raw material is easy to get and processing cost is low.But along with the development of technology, the drawback of this method also appears day by day: the sludge quantity of generation is big, and is not easy to realize automated operation.
Three, summary of the invention:
Purpose of the present invention is exactly to realize the defective of automated operation at prior art, and a kind of acidic fluoride-containing waste water automatic processing process is provided.
Technical scheme comprises the steps: that (1) acidic fluoride-containing waste water enters several groups of equalizing tanks that are provided with; (2) promote acidic fluoride-containing waste water to retort, the PH controller brings into operation, and opens the NaOH medicine storing pot automatically and neutralizes; (3) successively start CaCl
2Medicine storing pot and Al
2(SO
4)
3Medicine storing pot mixed 20-30 minute; (4) reaction back waste water enters inclined-plate clarifying basin, precipitates 60-120 minute; (5) handling the back fluorine content enters the recycle system less than the waste water up to standard of 10 mg/litre and utilizes; Mud enters suction pit, and the body refuse after the centrifuge dehydration can fully utilize; Wherein, acidic fluoride-containing waste water excludes the macrobead foreign material through artificial grid and enters equalizing tank; Be provided with fluid level controller in the equalizing tank, control promotes acidic fluoride-containing waste water to retort automatically; PH value in the retort should be controlled between the 6.5-8.5; Three groups of medicine storing pots that said system is provided with interconnect with retort respectively; Wherein, the NaOH medicine storing pot is told another tributary and retort interconnects; CaCl
2Medicine storing pot tells another tributary and inclined-plate clarifying basin has one to interconnect.
The invention has the beneficial effects as follows that the waste water automated processing system has the advantages that processing power is big, technology simple, raw material is easy to get and processing cost is low, and realized automatization processing monitoring, not only improved operational condition, and guaranteed water treatment effect.
Four, description of drawings:
Accompanying drawing is the process flow sheet of one embodiment of the present invention.
Five, embodiment:
With reference to accompanying drawing, this automated processing system is to design per hour to produce 1 cube of waste water, and the detailed technology scheme comprises as follows:
Waste water enters equalizing tank after artificial grid excludes the macrobead foreign material, can design two equalizing tanks, and each equalizing tank volume is 24 cubes, uses in turn.Be provided with fluid level controller in the equalizing tank, after reaching certain liquid level, controller transmission signal service pump rly. makes water pump promote waste water automatically, and the waste water liquid level stops after rising to certain altitude automatically.After acid waste water was thus lifted to reaction settling basin, the pH controller brought into operation, and opened NaOH alkali lye automatically and neutralized, the span of control of pH controller is between 6.5～8.5, removal effect to F-in this scope is best, after the pH value regulates, successively starts CaCl
2Precipitation agent dosing pump and Al
2(SO
4)
3The flocculation agent dosing pump mixed 20-30 minute in retort, decided the start and stop of precipitation agent dosing pump and flocculation agent dosing pump by the concentration of [F-], and reaction back waste water enters inclined-plate clarifying basin and carried out deepness 60～120 minutes.Fluorine content enters recycle system reuse less than the waste water up to standard of 10 mg/litre after treatment, and mud enters suction pit and squeezes into centrifuge by slush pump and dewater, body refuse comprehensive utilization after the dehydration or outward transport landfill.
Some explanation of automatic processing process
1, system's setting: be used for the state parameter setting of realization system before starting working, as the setting of full-automatic or semi-automatic, liquid level, alarm switch etc.Liquid level signal adopts pressure sensor, transmitter are realized.The pH value signal adopts industrial combined electrode, and carries out auto thermal compensation with platinum resistance thermometer sensor.The collection of [F] signal adopts ion selective electrode to finish.The pump current signal adopts current transformer to realize.
2, transducer calibration: transmitters such as liquid level, pH value, [F] must be changed in use for some time or demarcate again in the system.
3, data management: should comprise normal data inquiry, processing wastewater flow rate record, the automatic statistics of system etc.
4, corrosion protection design: extremely strong because of acidic fluorine-containing waste water corrodibility, must do rubber lining to equalizing tank, reaction settling basin, pump, pipe fitting etc. also must have erosion resistance.
5, on-line monitoring system: this system can in time be sent to supervisory system with result, so that check treatment effect and system-wide supervision and management.
Claims (5)
1, a kind of acidic fluoride-containing waste water automatic processing process is characterized in that this technology comprises the steps: that (1) acidic fluoride-containing waste water enters several groups of equalizing tanks that are provided with; (2) promote acidic fluoride-containing waste water to retort, the PH controller brings into operation, and opens the NaOH medicine storing pot automatically and neutralizes; (3) successively start CaCl
2Medicine storing pot and Al
2(SO
4)
3Medicine storing pot mixed 20-30 minute; (4) reaction back waste water enters inclined-plate clarifying basin, precipitates 60-120 minute; (5) handling the back fluorine content enters the recycle system less than the waste water up to standard of 10 mg/litre and utilizes; Mud enters suction pit, and the body refuse after the centrifuge dehydration can fully utilize.
2, acidic fluoride-containing waste water automatic processing process according to claim 1 is characterized in that acidic fluoride-containing waste water excludes the macrobead foreign material through artificial grid and enters equalizing tank.
3, acidic fluoride-containing waste water automatic processing process according to claim 1 is characterized in that being provided with in the equalizing tank fluid level controller, and control promotes acidic fluoride-containing waste water to retort automatically.
4, acidic fluoride-containing waste water automatic processing process according to claim 1 is characterized in that the pH value in the retort should be controlled between the 6.5-8.5.
5,, it is characterized in that three groups of medicine storing pots that are provided with interconnect with retort respectively according to claim 1,2,3 or 4 described acidic fluoride-containing waste water automatic processing process; Wherein, the NaOH medicine storing pot is told another tributary and retort interconnects; CaCl
2Medicine storing pot tells another tributary and inclined-plate clarifying basin has one to interconnect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410087884 CN1616362A (en) | 2004-07-28 | 2004-10-25 | Automatic processing process for acid waste water containing fluorine |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410035471 | 2004-07-28 | ||
| CN200410035471.2 | 2004-07-28 | ||
| CN 200410087884 CN1616362A (en) | 2004-07-28 | 2004-10-25 | Automatic processing process for acid waste water containing fluorine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1616362A true CN1616362A (en) | 2005-05-18 |
Family
ID=34796391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410087884 Pending CN1616362A (en) | 2004-07-28 | 2004-10-25 | Automatic processing process for acid waste water containing fluorine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1616362A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225814A (en) * | 2011-04-13 | 2011-10-26 | 黑龙江省牡丹江农垦奥宇石墨深加工有限公司 | Fluorine-containing waste water processing apparatus and processing method thereof |
| CN105293808A (en) * | 2015-12-03 | 2016-02-03 | 湖北平安电工股份有限公司 | Method for extracting n-butyl alcohol in concentrated acid wastewater |
| CN106517665A (en) * | 2016-12-09 | 2017-03-22 | 宜兴市苏嘉环保设备有限公司 | Acid pickling and passivating wastewater treatment system |
| CN108264170A (en) * | 2017-12-26 | 2018-07-10 | 广东省工程技术研究所 | A kind of equipment and its technique for being used to handle acidic fluorine-containing waste water |
-
2004
- 2004-10-25 CN CN 200410087884 patent/CN1616362A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225814A (en) * | 2011-04-13 | 2011-10-26 | 黑龙江省牡丹江农垦奥宇石墨深加工有限公司 | Fluorine-containing waste water processing apparatus and processing method thereof |
| CN102225814B (en) * | 2011-04-13 | 2012-11-14 | 黑龙江省牡丹江农垦奥宇石墨深加工有限公司 | Fluorine-containing waste water processing apparatus and processing method thereof |
| CN105293808A (en) * | 2015-12-03 | 2016-02-03 | 湖北平安电工股份有限公司 | Method for extracting n-butyl alcohol in concentrated acid wastewater |
| CN106517665A (en) * | 2016-12-09 | 2017-03-22 | 宜兴市苏嘉环保设备有限公司 | Acid pickling and passivating wastewater treatment system |
| CN108264170A (en) * | 2017-12-26 | 2018-07-10 | 广东省工程技术研究所 | A kind of equipment and its technique for being used to handle acidic fluorine-containing waste water |
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