CN108975442A - The processing method of fluorine ion in a kind of fluorine containing mine waste water - Google Patents
The processing method of fluorine ion in a kind of fluorine containing mine waste water Download PDFInfo
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- CN108975442A CN108975442A CN201810954277.6A CN201810954277A CN108975442A CN 108975442 A CN108975442 A CN 108975442A CN 201810954277 A CN201810954277 A CN 201810954277A CN 108975442 A CN108975442 A CN 108975442A
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- Prior art keywords
- fluorine
- waste water
- processing method
- mine waste
- containing mine
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/288—Treatment of water, waste water, or sewage by sorption using composite sorbents, e.g. coated, impregnated, multi-layered
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F2101/10—Inorganic compounds
- C02F2101/12—Halogens or halogen-containing compounds
- C02F2101/14—Fluorine or fluorine-containing compounds
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a kind of processing methods of fluorine ion in fluorine containing mine waste water, comprising the following steps: step 1 uniformly sprawls fluoride ion removing agent in precipitating bottom of pond portion, fluorine containing mine waste water to be processed is passed through into sedimentation basin；Step 2, fluorine ion advanced treating: waiting 30 ~ 60min, and fluoride ion removing agent is made to come into full contact with the fluorine ion absorbed in waste water；Clear water is discharged after being disposed in step 3, and precipitating bottom of pond portion sewage is carried out dehydrating, filters pressing water is recycled.The processing method of fluoride waste of the present invention is simple and quick, and the treatment effeciency of fluorine ion is obviously improved, has reached discharge standard, it is therefore prevented that secondary pollution.
Description
Technical field
The present invention relates to mine wastewater process fields, and in particular to the processing side of fluorine ion in a kind of fluorine containing mine waste water
Method.
Background technique
Many production processes in mining production require to use water, wherein it is most with mining, mill water, it adopts, select
Water can be caused seriously to pollute in production process, form mine wastewater.Mine water pollution, which refers to, contains various pollutants and toxic
The mining industry waste water and sanitary sewage of substance change its normal composition after being discharged into water body, have been more than the self-purification capacity of water, thus
The phenomenon that deteriorating water body, destroying water body original purposes.The type of mine water pollution object includes acid water pollution, heavy metal-polluted
Dye and nutrition accumulation pollution, these pollutant direct emissions can cause the damage for being difficult to retrieve, therefore, mine to ecology and human body
The improvement of waste water is most important.
Currently, often discharging fluoride waste during metal classification mining, environmental pollution is caused.Fluorine is a kind of
Plasm poisonous substance has easily through the cell wall of various tissues in conjunction with plasm and destroys plasmic effect.Zoopery table
Bright, fluorine can inhibit the activity of the enzymes such as lipase, sclerotin phosphatase and urease, cause metabolism disorder.Fluorine can also make first
Gland compensatory hypertrophy by shape, interferes the alcium and phosphor metabolization of bone.A large amount of fluorine can be such that the Reno-colic fistula of experimental animal changes, and reduce renal tubule
Function.For the human body, but damage of the fluorine to kidney is not obvious.Fluorine poisoning causes osteosclerosis, ligament, joint capsule calcification, canalis spinalis
And after intervertebral foramen narrows, spinal cord and nerve roots can be oppressed and lead to paralysis, paralysis.Experiment fluorine poisoning can damage cardiac muscle, make cell line
Plastochondria fracture and myofibrillar degeneration.Fluorine may also suppress endocrine effect, generate bad shadow to gonad, adrenal gland and pancreas
It rings.According to another report, it contaminates through air fluorine, the aberration rate of rat bone marrow cell chromosome will increase.Chromosome aberration is related to heredity
Gene, thus cause widely to pay attention to.Therefore, harm of the control excessive fluoride to human health, the discharge amount of strict control fluorine.
Chinese " Design of Industrial Enterprises sanitary standard " provides that residential area Fluoride in Air (being scaled fluorine) momentary maximum allowable concentration is
0.02 milli grams m, daily average maximum allowable concentration are 0.007 milli grams m.Surface water fluorine (inorganic compound) maximum permissible concentration
For 1.0 mg/litres.Fluoride maximum permissible concentration is 1.0 mg/litres in Drinking Water, and suitable concentration is 0.5~1.0 milli
Grams per liter.
In the prior art, the main methods of fluoride waste include: (1) calcium fluoride precipitate method: calcium salt precipitation method is extensive
For fluorine removal.Calcium salt is added in fluoride waste, is allowed to generate slightly solubility calcium fluoride precipitate.This method is suitable for handling fluorine-containing high
Waste water, treated, and fluorinated volume can be down to 12~13 mg/litres, and in addition calcium fluoride precipitate can also reprocess recycling.(2) cohesion is heavy
Shallow lake method: this method is not required to special installation, and expense is lower, but takes up a large area, and is not easy to operate continuously and carry out automation.Actually answering
Alum is commonly used in remove the fluorine in drinking water, but the dosage of alum is very big;Polyacrylamide is a kind of ideal flocculating agent,
Sinking speed can be made to accelerate, solid-liquid separation effect significantly improves, and body refuse amount is few, but medicament price is higher.Beijing non-ferrous metal
Research institute's lime adds ferrous sulfate and polyacrylamide to handle fluoride waste, and residual fluorine can be made to drop to 10 mg/litres or less.
(3) activated bauxite absorption method: activated bauxite has very strong adsorption capacity, can drop fluorinated volume after it is handled.
Therefore, for the applicability of above-mentioned treatment process, be difficult to realize automation and continuity operation and reagent cost
It is high and easily cause secondary pollution problem, develop that a kind of simple process economy, applicability is high, treatment effeciency is high, secondary pollution is small, dirty
The fluorine ion processing method that mud recycles convenient fluorine containing mine waste water is of great significance.
Summary of the invention
It is complicated that it is an object of the invention to the processing methods of: existing fluorine containing mine waste water, generally require multiple steps into
Row could be removed completely, and complicated process steps are time-consuming, and the chemical treatments of addition are more, be easy to cause secondary pollution, therefore, this Shen
A kind of processing method of fluorine ion in fluorine containing mine waste water please be provided, the processing step of fluorine containing mine waste water is simplified, only need one
Step can quickly be disposed, and the treatment effeciency of fluorine ion is obviously improved, has reached discharge standard, also prevents secondary pollution.
The technical solution adopted by the invention is as follows:
The processing method of fluorine ion in fluorine containing mine waste water of the invention, comprising the following steps:
The fluoride ion removing agent made of eggshell pulverized particles, aluminum sulfate and PAM is added in precipitating bottom of pond portion in step 1, then past
Fluorine containing mine waste water to be processed is passed through in sedimentation basin；
Step 2, fluorine ion advanced treating: wait 30 ~ 60min, make fluoride ion removing agent come into full contact with absorb waste water in fluorine from
Son；Fluorine ion processing method of the present invention, which mainly passes through fluoride ion removing agent and carries out processing, reaches treatment effect, it is only necessary to wait close
One hour can be complete by fluoride ion removing, and speed is fast, high-efficient.
Clear water is discharged after being disposed in step 3, and precipitating bottom of pond portion sewage is carried out dehydrating, filters pressing water is recycled, keeps away
Direct emission pollution environment is exempted from.
Preferably, eggshell pulverized particles uniformly spread over precipitating bottom of pond portion in the step 1.Eggshell pulverized particles are uniform
Spreading over precipitating bottom of pond portion can make fluoride ion removing agent uniformly spread over precipitating bottom of pond portion, and precipitates bottom of pond portion and sprawl fluorine ion
Remover can facilitate the recycling of cleaning and the fluoride ion removing agent of subsequent contamination sediment, the existing side for removing Natural zeolite
Method is usually to spray the method for remover, needs to wait for pollutant after removal and sinks to the bottom, is then exhausted from clear water, and the application is without waiting,
Remover is located at precipitating bottom of pond portion, and reaction contaminant is reacted in bottom and directly sunk to the bottom, and has saved the processing time, while handling effect
Rate can also be guaranteed.
Preferably, the screening partial size of egg shell particle is 0.5 ~ 2mm in the step 1.
Preferably, it is then exhausted from after wastewater treatment through filtering in the step 3.
Preferably, filters pressing water enters sedimentation basin and continues in the step 3.
Preferably, the sludge in the step 3 after dehydration is transported outward after being compressed into mud cake.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, fluorine ion processing method of the present invention is simple and convenient, and a step is completed, and has saved processing cost and treatment process；
2, in sedimentation basin treatment process, the operation of fluoride ion removing agent, fluorine ion and deionization remover are sprawled using bottom of pond
It acts on the sediment generated to recycle since gravity sinks convenient for clear water, while being also convenient for fluoride ion removing after use
Agent and the processing for polluting sediment.
Detailed description of the invention
Fig. 1 is fluoride wastewater treatment flow chart of the present invention.
Fig. 2 is the structural schematic diagram of sedimentation basin of the present invention.
Marked in the figure: 1- water inlet, 2- water outlet, 3- water recovery port, 4- buckle, 5- motor, 6- telescopic rod, the filter of 7- metal
Plate, 8- strainer, 9- fixed block, 10- ball, 11- strainer.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the prior art be usually using the methods of calcium fluoride precipitate method, coagulating sedimentation, activated bauxite absorption method come
Fluorine-containing waste water is handled, in these methods, the concentration adaptability of fluoride waste is not strong, and is difficult to realize continuity operation.For this purpose,
The present invention provides a kind of processing methods specifically for fluorine containing mine waste water fluorine ion, specifically include fluorine in fluorine containing mine waste water
The processing method of ion, fluoride ion removing agent and preparation method thereof.
The processing step of fluorine containing mine waste water refers to the flow chart of Fig. 1, and waste water arrival sedimentation basin carries out fluorine and handles, handles
After clear water be discharged, sludge is carried out dehydrating, and operating procedure is simple and convenient, high treating effect.In conjunction with Fig. 2, handle fluorine-containing
The concrete operations of waste water the following steps are included:
Step 1, fluoride waste enter sedimentation basin by water inlet 1, and fluoride ion removing agent equably spreads over sedimentation basin bottom of pond,
30 ~ 60min is waited, fluoride ion removing agent is made to come into full contact with the fluorine ion absorbed in waste water；
Step 2, driving motor shrink telescopic rod 6, and telescopic rod 6 is fixedly connected with metal filter plate 7, metal filter plate 7 and filter
Net 8 drives ball 10 to roll, and moves down compression precipitating bottom of pond portion, and the clear water handled well is by strainer 8 and metal filter plate from out
The mouth of a river 2 is discharged；
Step 3, base sludge dehydration: after the completion of fluoride wastewater treatment, opening water recovery port 3, keeps the sewage for precipitating bottom of pond portion logical
Filter screen 11 recycles, and opens buckle 4 and removes precipitating bottom of pond portion, compress sludge, recycles filters pressing water.Fluorine removal is gone in fluoride ion removing agent
Significant effect, high-efficient, usage amount is few, fluoride ion removing agent that no replacement is required when being handled.
Since present agricultural wastes include eggshell etc., yield is big, from a wealth of sources, and arbitrarily discarding will also result in one to environment
Fixed pollution and the wasting of resources, therefore it is the primary raw material of fluoride ion removing agent that eggshell is selected in the present embodiment.In step 1
The primary raw material of fluoride ion removing agent, according to quality proportioning, comprising: the pulverized particles of 70 ~ 80% discarded eggshell, 20 ~ 30%
Aluminum sulfate solid, 0.05 ~ 0.2% PAM.Configuration step: discarded eggshell is ground into graininess, the screening grain of egg shell particle
Diameter is 0.5 ~ 2mm, adds water submerged egg shell particle, and aluminum sulfate solid is added, stirs evenly 20 ~ 40min under the conditions of 50 ~ 70 DEG C；
PAM is added, stands 10 ~ 20min after mixing evenly, prepares and completes, is stored after detection is qualified spare.
In the above-described embodiments, the main component of eggshell is calcium carbonate, and generally has a tunic, referred to as shell membrane in eggshell,
Shell membrane is the fiber plasma membrane being wrapped in except albumen, is the organic fiber net being made of tough and tensile keratin.Carbon in eggshell
Sour calcium for fluorine have certain adsorptivity, can and fluorine effect generate calcium fluoride precipitate, most fluorine ion will in eggshell
Calcium carbonate effect precipitate.Simultaneously as having gap, shell membrane web, aluminum sulfate and PAM solution between egg shell particle
Full of between egg shell particle gap, shell membrane web and PAM net are entangled to each other, form the absorption reticular structure for being directed to fluorine ion,
Cooperate aluminum sulfate solution again, make to form an adsorption space between egg shell particle, continues absorption and depositional remanent fluorine ion, and
Be adhered on calcium fluoride precipitate, form bulk sludge, the absorption system of three can either abundant adsorption cleaning fluorine ion, and can be right
Other pollutants of waste water generate certain filtration, purification effect.
When using fluoride ion removing agent, opens buckle 4 and remove precipitating bottom of pond portion, configured fluoride ion removing agent is laid in bottom
Portion, dosage 500g/L, waste water is discharged into and is handled.The content of fluorine in wastewater after processing be 0.5~1.0 milligram/
It rises, has reached wastewater discharge standard.
Further, calcium carbonate, aluminum sulfate and PAM production fluoride ion removing agent is selected to try as the control of the present embodiment
It tests, using the fluoride waste of same concentrations, fluoride ion removing agent dosage is 500g/L.The fluoride ion removing made of calcium carbonate
Agent is in suspension system, and calcium carbonate and fluorine ion effect generate calcium fluoride precipitate, due to the presence of not no shell membrane, subsequent only sulphur
Sour aluminium and PAM are simply mixed, and the amount that sampling and measuring goes out fluorine ion at this time reduces unobvious.It precipitates, handles completely to sludge
After the completion, the content of measurement treated fluorine in wastewater is 1.5 ~ 2.0 mg/litres.Due to fluorine ion dirt Micro fluoride ion
Environment and human body will be brought with irreversible injury, therefore should using egg shell particle production fluoride ion removing agent ratio in the present invention
The obvious processing effect of check experiment.
A kind of processing method of fluoride waste provided by the present invention is described in detail above.
Principle and implementation of the present invention are described for specific embodiment used herein, above embodiments
Explanation be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for technical staff, these
Improvement and modification are also fallen within the protection scope of the claims of the present invention.
Claims (6)
1. the processing method of fluorine ion in a kind of fluorine containing mine waste water, which comprises the following steps:
The fluoride ion removing agent made of eggshell pulverized particles, aluminum sulfate and PAM is added in precipitating bottom of pond portion in step 1, then past
Fluorine containing mine waste water to be processed is passed through in sedimentation basin；
Step 2, fluorine ion advanced treating: wait 30 ~ 60min, make fluoride ion removing agent come into full contact with absorb waste water in fluorine from
Son；
Clear water is discharged after being disposed in step 3, and precipitating bottom of pond portion sewage is carried out dehydrating, filters pressing water is recycled.
2. the processing method of fluorine containing mine waste water according to claim 1, which is characterized in that egg-shell meal in the step 1
Broken particle uniformly spreads over precipitating bottom of pond portion.
3. the processing method of fluorine containing mine waste water according to claim 1, which is characterized in that the step 1 egg shell particle
Screening partial size be 0.5 ~ 2mm.
4. the processing method of fluorine containing mine waste water according to claim 1, which is characterized in that in the step 3 at waste water
It is then exhausted from after reason through filtering.
5. the processing method of fluorine containing mine waste water according to claim 1, which is characterized in that filters pressing water in the step 3
It is continued with into sedimentation basin.
6. the processing method of fluorine containing mine waste water according to claim 1, which is characterized in that in the step 3 at dehydration
Sludge after reason is transported outward after being compressed into mud cake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810954277.6A CN108975442A (en) | 2018-08-21 | 2018-08-21 | The processing method of fluorine ion in a kind of fluorine containing mine waste water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810954277.6A CN108975442A (en) | 2018-08-21 | 2018-08-21 | The processing method of fluorine ion in a kind of fluorine containing mine waste water |
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| CN108975442A true CN108975442A (en) | 2018-12-11 |
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| CN201810954277.6A Withdrawn CN108975442A (en) | 2018-08-21 | 2018-08-21 | The processing method of fluorine ion in a kind of fluorine containing mine waste water |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650673A (en) * | 2021-07-27 | 2021-11-16 | 宋丽华 | Oil storage device of automobile steering device |
| CN113800684A (en) * | 2021-10-09 | 2021-12-17 | 大连东泰产业废弃物处理有限公司 | Method for treating acidic fluorine-containing wastewater by using biological shell powder |
-
2018
- 2018-08-21 CN CN201810954277.6A patent/CN108975442A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650673A (en) * | 2021-07-27 | 2021-11-16 | 宋丽华 | Oil storage device of automobile steering device |
| CN113800684A (en) * | 2021-10-09 | 2021-12-17 | 大连东泰产业废弃物处理有限公司 | Method for treating acidic fluorine-containing wastewater by using biological shell powder |
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Application publication date: 20181211 |
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