CN107640869A - A kind of fluorine-containing wastewater treatment method - Google Patents
A kind of fluorine-containing wastewater treatment method Download PDFInfo
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- CN107640869A CN107640869A CN201710936185.0A CN201710936185A CN107640869A CN 107640869 A CN107640869 A CN 107640869A CN 201710936185 A CN201710936185 A CN 201710936185A CN 107640869 A CN107640869 A CN 107640869A
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Abstract
The invention discloses a kind of fluorine-containing wastewater treatment method, belong to field of sewage treatment.Inorganic agent provided by the present invention is to be mutually mixed bone slag with that can inhale fluorine plant,And made solidliquid mixture is modified to it using surfactant,Avoid flour and be added to dust caused in fluoride waste,Improve defluorination effect simultaneously,Because fluorine ion is both without oxidisability or without reproducibility,Therefore certain pH and at a temperature of,Defluorination effect is more preferably,The present invention is by the water plant collective effect with rhizosphere microorganism in itself using water plant processing dyeing waste water,Wastewater Dyes and other organic matters are adsorbed,Absorb and degrade,Make the reduction of the indexs such as color degree of dyeing waste water based on this,Reach the purpose of purifying water body,The present invention is solved at present because conventional calcium containing compound is powdery during waste water is added to,Easily dust is caused to be kicked up,The not only health of harmful operations personnel,And the problem of easily causing the not convenient property of charging process.
Description
Technical field
The invention belongs to sewage treatment area, and in particular to a kind of fluorine-containing wastewater treatment method.
Background technology
Fluoride (F-) it is one of the essential trace elements of the human body, fluorinated volume is too high or too low all unfavorable to health,
The Oil repellent suitable concentration of drinking water is 0.5 ~ 1.0mg/L.When drinking water lacks fluorine, then dental caries are susceptible to suffer from, if but drinking for a long time
When fluorinated volume is higher than 1.0mg/L water, it gently can then cause the illnesss such as maculopathy, renal dysfunction, it is heavy then cause the skeletal injury to be
To paraplegia, i.e., so-called fluorosis of bone.With flourishing for industrial society, the environmental issue such as various industrial waste gases, waste water also phase
Ying Ersheng, so that industrial wastewater is for the influence caused by environment as an example, due to containing having for many different components in industrial wastewater
Noxious material, if these noxious materials are directly discharged into rivers and creeks or permeated the ground with waste water, so as to cause the dirt in rivers and creeks and underground water
Dye, and then jeopardizes the drinking water safety of people, such as making, the plating of glass make, refining and the semiconductor element of aluminium and steel
Making of part etc., it is common to use substantial amounts of fluorides chemicals, it is substantial amounts of caused by steel industry or integrated circuit manufacturing industry
Fluoride waste, wherein fluoro-containing concentration are even as high as 2000ppm, hence it is evident that beyond statutory emissions regulations 15ppm, these producers it is fluorine-containing
Waste water has to pass through proper treatment and could discharged.In the environment, fluoride can also be accumulated and turned in vivo by food chain
Move, whole ecological environment is impacted.Many industry, such as fluorine-containing ore extraction, metal smelt, aluminum profile extrusion, coke, glass
Deng may all discharge fluoride waste, environmental fluoride pollution is caused.So fluorine removal drop fluorine technical study just into domestic and international chemical industry,
Environmental protection and the important directions of health field.Over nearly two, 30 years, the processing to fluorinated water both at home and abroad has carried out substantial amounts of research work
Make, the fundamental research to lowering fluorine and removing fluorine technique and correlation there has also been some progress.At present, the fluorine removal reducing fluoride method of fluorinated water
Mainly there are absorption method, electrocoagulation, hyperfiltration, ion-exchange, chemical precipitation method and coagulation sedimentation etc..These methods
In, ion-exchange is costly, and strict to waste water quality requirement；Electrocoagulation and hyperfiltration device are complicated, and power consumption is big,
It is thus all few to use.In practice often using absorption method, chemical precipitation method and coagulation sedimentation.The water of absorption method processing
Measure extremely limited, be suitable only for handling the less occasion of water, the lowering fluorine and removing fluorine processing of such as drinking water, for water it is very big or
The higher Industrial Wastewater Treatment actuality of Oil repellent is little.Chemical precipitation method is suitable for the processing of high-concentration industrial fluoride waste,
Calcium salt precipitation method typically is used, i.e., soluble calcium salt is added into waste water, makes F-And Ca2+Generate CaF2Precipitate and remove.Add
Calcium salt mainly have lime, calcium sulfate and calcium chloride, but because conventional calcium containing compound is powdery, such as：CaO and Ca
(OH)2Deng during waste water is added to, easily causing dust to be kicked up, not only the health of harmful operations personnel, and easily make
Into the not convenient property of charging process.Therefore, invent a kind of high-effective defluorination and do not easily cause the processing method of dust have it is very big
The market demand.
The content of the invention
The technical problems to be solved by the invention：For at present because conventional calcium containing compound contains being added to for powdery
During fluorine waste water, easily cause dust to be kicked up, not only the health of harmful operations personnel, and easily cause charging process not
A kind of the problem of convenience, there is provided fluorine-containing wastewater treatment method.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of fluorine-containing wastewater treatment method, it is characterised in that the preparation method comprises the following steps：
（1）Fluoride waste is promoted to coarse rack, preliminary filtering, the fluoride waste after filtering is delivered in regulating reservoir, adjusts pH
It is worth to 7 ~ 8；
（2）Water after regulation to be delivered in heating bath, heated, temperature is 40 ~ 70 DEG C, stirs 20 ~ 30min, then to heating
The inorganic agent that water quality 10 ~ 15% is added in pond is handled；
（3）Water after processing is delivered in biological tank, biological tank surface grafting water lily, biological tank bottom is provided with bed material；
（4）Water extraction after biological tank is handled is risen in clear water reserviors, 30 ~ 40min of stand at low temperature, water outlet.
The step（2）The preparation method of middle inorganic agent：
A. in mass ratio 1：1, bone slag, phoenix tree leaf are put into pulverizer and crushed, obtains crushed material, in mass ratio 1：3 ~ 4, by powder
Mince, 1mol/L hydrochloric acid solutions are mixed, soak 1 ~ 2h, filtering, obtain filter residue, in mass ratio 7 ~ 8：1 ~ 2, by filter residue, 12
Sodium alkyl benzene sulfonate carries out ball milling, obtains ball milling thing,
B. count in parts by weight, take 30 ~ 40 parts of water, 10 ~ 15 parts of peptones, 7 ~ 8 parts of agar, 4 ~ 5 portions of maltose, 1 ~ 2 part of chlorination
Sodium is mixed, high-temperature sterilization, obtains nutrient solution, in mass ratio 1 ~ 3：4 ~ 5, ball milling thing, nutrient solution are put into fermentation tank, in temperature
2 ~ 3d of fermentation is carried out at 30 ~ 40 DEG C of degree, fermentate is obtained, produces inorganic agent.
The step（3）Middle bed material is in mass ratio 20 ~ 30：1~2：1 ~ 2, Pond Silt, diatomite, lime stone are carried out
Mixing, produce the bed material of biotic division.
Compared with other method, advantageous effects are the present invention：Inorganic agent provided by the present invention be by bone slag with
Fluorine plant can be inhaled to be mutually mixed, and be modified made solidliquid mixture to it using surfactant, avoid flour
It is added to dust caused in fluoride waste, while improves defluorination effect, because fluorine ion is both without oxidisability or without also
Originality, thus certain pH and at a temperature of, defluorination effect more preferably, the present invention using water plant processing dyeing waste water be to pass through
Wastewater Dyes and other organic matters are adsorbed, absorbed and dropped by the water plant collective effect with rhizosphere microorganism in itself
Solution, make the reduction of the indexs such as color degree of dyeing waste water based on this, reach the purpose of purifying water body, in addition Pond Silt in biological tank
Be advantageous to plant growth, and the microcellular structure that diatomite is unique, also possess certain adsorption effect, so as to improve water outlet water
Matter.
Embodiment
The preparation method of inorganic agent：
A. in mass ratio 1：1, bone slag, phoenix tree leaf are put into pulverizer and crushed, obtains crushed material, in mass ratio 1：3 ~ 4, by powder
Mince, 1mol/L hydrochloric acid solutions are mixed, soak 1 ~ 2h, filtering, obtain filter residue, in mass ratio 7 ~ 8：1 ~ 2, by filter residue, 12
Sodium alkyl benzene sulfonate carries out ball milling, obtains ball milling thing,
B. count in parts by weight, take 30 ~ 40 parts of water, 10 ~ 15 parts of peptones, 7 ~ 8 parts of agar, 4 ~ 5 portions of maltose, 1 ~ 2 part of chlorination
Sodium is mixed, high-temperature sterilization, obtains nutrient solution, in mass ratio 1 ~ 3：4 ~ 5, ball milling thing, nutrient solution are put into fermentation tank, in temperature
2 ~ 3d of fermentation is carried out at 30 ~ 40 DEG C of degree, fermentate is obtained, produces inorganic agent.
Bed material is in mass ratio 20 ~ 30：1~2：1 ~ 2, Pond Silt, diatomite, lime stone are mixed, produce biology
The bed material in area.
A kind of fluorine-containing wastewater treatment method, it is characterised in that the preparation method comprises the following steps：
（1）Fluoride waste is promoted to coarse rack, preliminary filtering, the fluoride waste after filtering is delivered in regulating reservoir, adjusts pH
It is worth to 7 ~ 8；
（2）Water after regulation is delivered in heating bath, heated, temperature is 40 ~ 70 DEG C, stirs 20 ~ 30min, to heating
The inorganic agent that water quality 10 ~ 15% is added in pond is handled；
（3）Water after processing is delivered in biological tank, biological tank surface grafting water lily, biological tank bottom is provided with bed material；
（4）Water extraction after biological tank is handled is risen in clear water reserviors, 30 ~ 40min of stand at low temperature, water outlet.
Example 1
The preparation method of inorganic agent：
A. in mass ratio 1：1, bone slag, phoenix tree leaf are put into pulverizer and crushed, obtains crushed material, in mass ratio 1：3, it will crush
Thing, 1mol/L hydrochloric acid solutions are mixed, and are soaked 1h, filtering, are obtained filter residue, in mass ratio 7：1, by filter residue, detergent alkylate sulphur
Sour sodium carries out ball milling, obtains ball milling thing,
B. count in parts by weight, take 30 parts of water, 10 parts of peptones, 7 parts of agar, 4 portions of maltose, 1 part of sodium chloride to be mixed, it is high
Temperature sterilizing, obtains nutrient solution, in mass ratio 1：4, ball milling thing, nutrient solution are put into fermentation tank, fermented at 30 DEG C of temperature
2d, fermentate is obtained, produce inorganic agent.
Bed material is in mass ratio 20：1：1, Pond Silt, diatomite, lime stone are mixed, produced a kind of fluorine-containing useless
Method for treating water, it is characterised in that the preparation method comprises the following steps：
（1）Fluoride waste is promoted to coarse rack, preliminary filtering, the fluoride waste after filtering is delivered in regulating reservoir, adjusts pH
It is worth to 7；
（2）Water after regulation is delivered in heating bath, heated, temperature is 40 DEG C, stirs 20min, is being added into heating bath
The inorganic agent for entering water quality 10% is handled；
（3）Water after processing is delivered in biological tank, biological tank surface grafting water lily, biological tank bottom is provided with bed material；
（4）Water extraction after biological tank is handled is risen in clear water reserviors, stand at low temperature 30min, water outlet.
Example 2
The preparation method of inorganic agent：
A. in mass ratio 1：1, bone slag, phoenix tree leaf are put into pulverizer and crushed, obtains crushed material, in mass ratio 1：4, it will crush
Thing, 1mol/L hydrochloric acid solutions are mixed, and are soaked 2h, filtering, are obtained filter residue, in mass ratio 4：1, by filter residue, detergent alkylate sulphur
Sour sodium carries out ball milling, obtains ball milling thing,
B. count in parts by weight, take 40 parts of water, 15 parts of peptones, 8 parts of agar, 5 portions of maltose, 2 parts of sodium chloride to be mixed, it is high
Temperature sterilizing, obtains nutrient solution, in mass ratio 3：5, ball milling thing, nutrient solution are put into fermentation tank, fermented at 40 DEG C of temperature
3d, fermentate is obtained, produce inorganic agent.
Bed material is in mass ratio 15：1：1, Pond Silt, diatomite, lime stone are mixed, produce the bottom of biotic division
Material.
A kind of fluorine-containing wastewater treatment method, it is characterised in that the preparation method comprises the following steps：
（1）Fluoride waste is promoted to coarse rack, preliminary filtering, the fluoride waste after filtering is delivered in regulating reservoir, adjusts pH
It is worth to 8；
（2）Water after regulation is delivered in heating bath, heated, temperature is 70 DEG C, stirs 30min, is being added into heating bath
The inorganic agent for entering water quality 15% is handled；
（3）Water after processing is delivered in biological tank, biological tank surface grafting water lily, biological tank bottom is provided with bed material；
（4）Water extraction after biological tank is handled is risen in clear water reserviors, stand at low temperature 40min, water outlet.
Example 3
The preparation method of inorganic agent：
A. in mass ratio 1：1, bone slag, phoenix tree leaf are put into pulverizer and crushed, obtains crushed material, in mass ratio 1：3.5, by powder
Mince, 1mol/L hydrochloric acid solutions are mixed, soak 1.5h, filtering, obtain filter residue, in mass ratio 7.5：1.5, by filter residue, 12
Sodium alkyl benzene sulfonate carries out ball milling, obtains ball milling thing,
B. count in parts by weight, take 35 parts of water, 13 parts of peptones, 7.5 parts of agar, 4.5 portions of maltose, 1.5 parts of sodium chloride to carry out
Mixing, high-temperature sterilization, obtains nutrient solution, in mass ratio 2：4.5, ball milling thing, nutrient solution are put into fermentation tank, at 35 DEG C of temperature
Fermentation 2.5d is carried out, obtains fermentate, produces inorganic agent.
Bed material is in mass ratio 25：1.5：1.5, Pond Silt, diatomite, lime stone are mixed, produce biotic division
Bed material.
A kind of fluorine-containing wastewater treatment method, it is characterised in that the preparation method comprises the following steps：
（1）Fluoride waste is promoted to coarse rack, preliminary filtering, the fluoride waste after filtering is delivered in regulating reservoir, adjusts pH
It is worth to 7.5；
（2）Water after regulation is delivered in heating bath, heated, temperature is 55 DEG C, stirs 25min, is being added into heating bath
The inorganic agent for entering water quality 13% is handled；
（3）Water after processing is delivered in biological tank, biological tank surface grafting water lily, biological tank bottom is provided with bed material；
（4）Water extraction after biological tank is handled is risen in clear water reserviors, stand at low temperature 35min, water outlet.
Reference examples：The fluorine-containing wastewater treatment method that company of Zibo City provides.
The fluorine-containing wastewater treatment method of the fluorine-containing wastewater treatment method of examples detailed above and reference examples is detected, specific inspection
Survey as follows：
Fluoride waste 1L, wherein F are taken respectively- Content 25 ~ 30mg/L, CODCr 190 ~ 210mg/L of content, use containing for the present invention
Fluorine method of wastewater treatment and the fluorine-containing wastewater treatment method of reference examples are handled, and detection method is to use《Integrated wastewater discharges
Standard》；COD measure uses potassium dichromate method；F-Measure use fluorescence spectrophotometric method.Test result is shown in Table 1.
Table 1：
| Test event | Example 1 | Example 2 | Example 3 | Reference examples |
| F after processing-（mg/L） | 4.21 | 3.25 | 3.21 | 12.3~15.6 |
| CODCr after processing（mg/L） | 74.1 | 71.2 | 70.6 | 123~126 |
Summary, fluorine-containing wastewater treatment method high treating effect of the invention, is worth of widely use.
Claims (3)
1. a kind of fluorine-containing wastewater treatment method, it is characterised in that the preparation method comprises the following steps：
（1）Fluoride waste is promoted to coarse rack, preliminary filtering, the fluoride waste after filtering is delivered in regulating reservoir, adjusts pH
It is worth to 7 ~ 8；
（2）Water after regulation to be delivered in heating bath, heated, temperature is 40 ~ 70 DEG C, stirs 20 ~ 30min, then to heating
The inorganic agent that water quality 10 ~ 15% is added in pond is handled；
（3）Water after processing is delivered in biological tank, biological tank surface grafting water lily, biological tank bottom is provided with bed material；
（4）Water extraction after biological tank is handled is risen in clear water reserviors, 30 ~ 40min of stand at low temperature, gone out.
2. fluorine-containing wastewater treatment method according to claim 1, it is characterised in that the step（2）The preparation of middle inorganic agent
Method：
A. in mass ratio 1：1, bone slag, phoenix tree leaf are put into pulverizer and crushed, obtains crushed material, in mass ratio 1：3 ~ 4, by powder
Mince, 1mol/L hydrochloric acid solutions are mixed, soak 1 ~ 2h, filtering, obtain filter residue, in mass ratio 7 ~ 8：1 ~ 2, by filter residue, 12
Sodium alkyl benzene sulfonate carries out ball milling, obtains ball milling thing,
B. count in parts by weight, take 30 ~ 40 parts of water, 10 ~ 15 parts of peptones, 7 ~ 8 parts of agar, 4 ~ 5 portions of maltose, 1 ~ 2 part of chlorination
Sodium is mixed, high-temperature sterilization, obtains nutrient solution, in mass ratio 1 ~ 3：4 ~ 5, ball milling thing, nutrient solution are put into fermentation tank, in temperature
2 ~ 3d of fermentation is carried out at 30 ~ 40 DEG C of degree, fermentate is obtained, produces inorganic agent.
3. the preparation method of drier according to claim 1, it is characterised in that the step（3）Middle bed material is by quality
Than 20 ~ 30：1~2：1 ~ 2, Pond Silt, diatomite, lime stone are mixed, produce the bed material of biotic division.
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Application publication date: 20180130 |