CN110357372A - A kind of underground coal mine wastewater treatment and renovation device and processing method - Google Patents
A kind of underground coal mine wastewater treatment and renovation device and processing method Download PDFInfo
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- CN110357372A CN110357372A CN201910801727.2A CN201910801727A CN110357372A CN 110357372 A CN110357372 A CN 110357372A CN 201910801727 A CN201910801727 A CN 201910801727A CN 110357372 A CN110357372 A CN 110357372A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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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
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
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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
- C02F2001/007—Processes including a sedimentation step
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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
- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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Abstract
The invention discloses a kind of underground coal mine wastewater treatment and renovation devices, primary sedimentation tank, emulsification pond, pipe-line mixer, iron-carbon micro-electrolysis coupling Fenton oxidation pond, flocculation tank, biofilter and sterilization pool including successively piping connection；It emulsifies pond upper end and is equipped with emulsifier dispensing kit；Hydrogen peroxide dispensing kit is equipped with above pipe-line mixer, the pipe-line mixer other end is equipped with third outlet pipe, and third outlet pipe extends into iron-carbon micro-electrolysis coupling Fenton oxidation pond, and is located at top in iron-carbon micro-electrolysis coupling Fenton oxidation pond；Iron-carbon micro-electrolysis, which couples, is equipped with iron carbon filler in Fenton oxidation pond；The top of flocculation tank is equipped with flocculant dispensing kit and alkali dispensing kit.The present invention utilizes acid, the Fe in integral treatment device3+、Fe2+、Mn2+Wastewater treatment is participated in, reagent input cost has on the one hand been saved, another party can be good at handling waste water, and effluent index meets GB5749-2006 " standards for drinking water quality " requirement after processing.
Description
Technical field
The invention belongs to technical field of sewage, and in particular to a kind of underground coal mine wastewater treatment and renovation device and processing
Method.
Background technique
Coal in China yield is big, and the yield and discharge amount of Technique of Coal Mine Drainage are also big, with coal mining area water resource day
Benefit coal circular economy industrial in short supply and big water consumption is fast-developing, and mine water resource is increasingly taken seriously, especially
In water shortage mining area, mine water has become main industry, domestic water source.Therefore mine water is handled, keeps it full
Foot industry, domestic water requirement are current problems in urgent need to solve.
According to the characteristic of mine water pollution object, it is generally divided into following four classes, i.e. common mine water, high salinity mine
Well water, acid mine water and special contamination mine water.Wherein, acid mine water is a big pollution sources of coal mine, and pH generally exists
Between 2.3-5.7, contain SO4 2-、Fe3+、Fe2+、Mn2+And other metal ions, also contain a certain amount of petroleum pollution, thus
Cause waste water of mine COD concentration and heavy metal concentration higher.
Because acid mine water acidity is big, and contain a large amount of heavy metal, is generally unable to direct circulation utilization, in the prior art
It is usually to be discharged in the water bodys such as the river near mine, lake, this operating method can make the water bodys such as river, lake
PH value changes, and inhibits the growth of bacterium and microorganism in water body, and then influence the self-purification function of water body.Meanwhile acid mine
The heavy metal ion contained in well water also can generate toxicity to bacterium and microorganism, and it is raw that the COD content of high concentration will affect water body
State environment.Make in addition, acid mine water can generate strong corrosion failure to water pump accessory, tubing, the tunnel equipment in mine
With causing maintenance of equipment frequent, but will directly endanger the safety of miner.Therefore, acid mine water must be carried out timely and effective
Improvement, to reduce harm to environment and equipment, while providing water resource for mining area.
Summary of the invention
The present invention provides a kind of underground coal mine wastewater treatment and renovation device and processing methods, make acid mine water at
Domestic water reuse standard can be reached after reason, not only solved the pollution problem of acid mine water, but also solve mining area water shortage and ask
Topic.
The first purpose of the invention is to provide a kind of underground coal mine wastewater treatment and renovation devices, including primary sedimentation tank, emulsification
Pond, pipe-line mixer, iron-carbon micro-electrolysis coupling Fenton oxidation pond, flocculation tank, biofilter and sterilization pool；
The side of the primary sedimentation tank upper end is equipped with water inlet pipe, and the opposite other side is equipped with the first outlet pipe, and the emulsification pond is logical
First outlet pipe is crossed to be connected to the primary sedimentation tank；The upper end in the emulsification pond is equipped with emulsifier dispensing kit, the emulsifier
Dispensing kit is connected to by pipeline with the emulsification pond, and the first agitating device is equipped in the emulsification pond；The upper end in the emulsification pond
It is additionally provided with the second outlet pipe；
The pipe-line mixer is connected to by second outlet pipe with the emulsification pond, the top of the pipe-line mixer
Equipped with hydrogen peroxide dispensing kit, the hydrogen peroxide dispensing kit is connected to by pipeline with the pipe-line mixer, the pipe-line mixer
The other end be equipped with third outlet pipe, the third outlet pipe extends into iron-carbon micro-electrolysis coupling Fenton oxidation pond, and
The top in iron-carbon micro-electrolysis coupling Fenton oxidation pond；The iron-carbon micro-electrolysis coupling is equipped with iron carbon in Fenton oxidation pond
The lower end of filler, iron-carbon micro-electrolysis coupling Fenton oxidation pond is equipped with the 4th outlet pipe；
The flocculation tank couples the connection of Fenton oxidation pond, institute with the iron-carbon micro-electrolysis by the 4th outlet pipe
It states and is equipped with the second agitating device in flocculation tank, the top of the flocculation tank is equipped with flocculant dispensing kit and alkali is offerd medicine
Case, the flocculant dispensing kit and alkali dispensing kit pass through pipeline and are connected to the flocculation tank；The flocculation tank
Upper end is equipped with the 5th outlet pipe；
The biofilter is connected to by the 5th outlet pipe with the flocculation tank, the lower end of the biofilter
Equipped with the 6th outlet pipe, the sterilization pool is connected to by the 6th outlet pipe with the biofilter, the sterilization pool it is upper
End is equipped with the 7th outlet pipe；
First outlet pipe, the second outlet pipe, third outlet pipe, the 4th outlet pipe, the 5th outlet pipe, the 6th outlet pipe
And the 7th be equipped with solenoid valve on outlet pipe.
Preferably, the bottom end of the primary sedimentation tank and the flocculation tank is equipped with sludge bucket, the bottom end of the sludge bucket
Equipped with sludge pipe, the sludge pipe is equipped with valve.
Preferably, the emulsifier dispensing kit is provided with emulsifier, and the emulsifier is neopelex.
Preferably, first agitating device and second agitating device include motor, stirring rod and stirring blade,
The motor is located on the top plate of the emulsification pond or the flocculation tank, and one end of the stirring rod passes through the emulsification pond
Or the top plate of the flocculation tank, and the output axis connection with the motor, the other end are provided with the stirring blade.
Preferably, the part that the third outlet pipe is located in iron-carbon micro-electrolysis coupling Fenton oxidation pond offers more
A water distributing pore.
Preferably, high-pressure pump is additionally provided on the third outlet pipe.
Preferably, the flocculant dispensing kit is provided with flocculant, and the flocculant is poly-ferric chloride；The alkali dispensing
Case is provided with alkali, and the alkali is calcium hydroxide.
Preferably, the top of the sterilization pool is equipped with disinfectant dispensing kit, and the disinfectant dispensing kit passes through pipeline and institute
State sterilization pool connection.
Preferably, the disinfectant dispensing kit is provided with disinfectant, and the disinfectant is bleaching powder.
A second object of the present invention is to provide the methods using above-mentioned apparatus processing underground coal mine waste water, including following step
It is rapid:
Step 1, underground coal mine waste water is promoted by elevator pump into primary sedimentation tank, supernatant is pumped into cream after staticly settling
Change pond, under stirring, emulsifier is added in emulsification pond by emulsifier dispensing kit；
Step 2, pipe-line mixer is passed through in the water outlet of emulsification pond, while hydrogen peroxide dispensing kit adds dioxygen in pipe-line mixer
Water, the waste water for being mixed with hydrogen peroxide enter iron-carbon micro-electrolysis coupling Fenton oxidation pond through pipe-line mixer and carry out oxidation reaction, instead
It should finish to obtain iron-carbon micro-electrolysis coupling Fenton oxidation pond water outlet；
Step 3, the water outlet of iron-carbon micro-electrolysis coupling Fenton oxidation pond enters flocculation tank, under stirring, flocculant
Dispensing kit adds flocculant in flocculation tank, and alkali dispensing kit adds alkali, and the dosage of flocculant in flocculation tank
For 0.01mg/L waste water, it is 7-8 that the dosage of alkali, which keeps wastewater pH, and 10min is stirred for after adding, and stands 30min, discharge
Supernatant；
Step 4, flocculation tank supernatant enters biofilter, and biofilter water outlet is obtained after being disposed；
Step 5, biofilter water outlet enters sterilization pool, and processing water outlet is obtained after being disposed.
Compared with prior art, the beneficial effects of the present invention are:
1) present invention carries out Fenton oxidation using the acid in acid waste water and iron-carbon micro-electrolysis reacts, on the one hand can be efficient
It handles the organic matter in waste water and consumes the acid in waste water, on the other hand, iron-carbon micro-electrolysis reaction provides Fe for Fenton's reaction2+From
Son, while Fenton's reaction can aoxidize Mn2+Ion, and Fe can be also generated in above-mentioned oxidation reaction process3+Ion and titanium dioxide
Manganese wadding body, the two can provide flocculant for the flocculation reaction of next step；
Water outlet after oxidation reaction carries out flocculation reaction after being adjusted to alkalinity again, utilizes the gold in flocculation reaction removal waste water
Belong to ion and suspended matter, flocculation water outlet carries out advanced treating with biofilter again, removes remaining pollutant in waste water, make to handle
Water outlet afterwards can satisfy discharge standard；Chemical disinfection finally is carried out to processing waste water, it is made to meet reuse standard.
2) present invention is directed to the characteristics of integral treatment device using corresponding processing unit, can be good in sewage
Various pollutants are handled well, and effluent index that treated meets GB5749-2006 " standards for drinking water quality "
It is required that providing method that is a kind of new, feasible, being easily achieved for integral treatment device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of underground coal mine wastewater treatment and renovation device of the present invention.
Description of symbols: 1, primary sedimentation tank；2, pond is emulsified；3, pipe-line mixer；4, iron-carbon micro-electrolysis couples Fenton oxidation
Pond；5, flocculation tank；6, biofilter；7, sterilization pool；8, water inlet pipe；9, the first outlet pipe；10, emulsifier dispensing kit；11,
Hydrogen peroxide dispensing kit；12, high-pressure pump；13, iron carbon filler；14, the 4th outlet pipe；15, flocculant dispensing kit；16, alkali dispensing kit；
17, valve；18, disinfectant dispensing kit.
Specific embodiment
In order to enable those skilled in the art to more fully understand, technical solution of the present invention is practiced, below with reference to specific
The invention will be further described for embodiment and attached drawing, but illustrated embodiment is not as a limitation of the invention.
Experimental rig used in following each embodiments, such as primary sedimentation tank emulsify pond, pipe-line mixer, biofilter and disappear
Malicious pond unless otherwise specified, then shows not being related to any improvement and innovation using existing experimental rig；The test
Method is unless otherwise specified conventional method.
Embodiment 1
A kind of underground coal mine wastewater treatment and renovation device, it is specific as shown in Figure 1, mixed including primary sedimentation tank 1, emulsification pond 2, pipeline
Clutch 3, iron-carbon micro-electrolysis coupling Fenton oxidation pond 4, flocculation tank 5, biofilter 6 and sterilization pool 7.
The effect of primary sedimentation tank 1 mainly removes solid impurity and SS in underground coal mine waste water, to reduce to subsequent processing
Interference, go on smoothly subsequent reactions.The side of 1 upper end of primary sedimentation tank is equipped with water inlet pipe 8, and sewage enters just via water inlet pipe 8
Heavy pond 1, after precipitating, supernatant enters emulsification pond 2 via the first outlet pipe 9 that the opposite other side is equipped with.
The upper end for emulsifying pond 2 is equipped with emulsifier dispensing kit 10, and emulsifier dispensing kit 10 is provided with emulsifier, emulsifier ten
Dialkyl benzene sulfonic acids sodium, emulsifier dispensing kit 10 are connected to emulsification pond 2 by pipeline, emulsifier are put into emulsification pond 2.Generally
For, the concentration of petroleum pollution is not very high in underground coal mine waste water, and oil slick is also not it is obvious that so stone under normal circumstances
Oil contaminants and waste water do not need to add emulsifier in uniform admixture, at this point, the effect in emulsification pond 2 is equivalent to
It is a homogeneous average pond, makes each stock waste water entered homogeneous average in emulsification pond 2, be conducive to subsequent processing.
It emulsifies and is equipped with the first agitating device in pond 2, the first agitating device includes motor, stirring rod and stirring blade, motor
On the top plate in emulsification pond 2, one end of stirring rod passes through the top plate in emulsification pond 2, and the output axis connection with motor, the other end
It is provided with stirring blade.First agitating device can be stirred waste water in emulsification pond 2, when not adding emulsifier, homogeneous
It measures, when adding emulsifier, evenly spreads to emulsifier in waste water, and then petroleum pollution and waste water is made to become homogeneous phase.
The upper end in emulsification pond 2 is additionally provided with the second outlet pipe, and pipe-line mixer 3 is connected to by the second outlet pipe with emulsification pond 2,
It emulsifies the water outlet of pond 2 and enters pipe-line mixer 3, the top of pipe-line mixer 3 is equipped with hydrogen peroxide dispensing kit 11, hydrogen peroxide dispensing kit 11
It is connected to by pipeline with pipe-line mixer 3, hydrogen peroxide dispensing kit 11 adds hydrogen peroxide into pipe-line mixer 3, hydrogen peroxide and useless
Enter 3 other end of pipe-line mixer after water mixing to be equipped in third outlet pipe, third outlet pipe extends into iron-carbon micro-electrolysis coupling
In Fenton oxidation pond 4, and it is located at top in iron-carbon micro-electrolysis coupling Fenton oxidation pond 4, third outlet pipe is located at iron-carbon micro-electrolysis
Part in coupling Fenton oxidation pond 4 offers multiple water distributing pores, and high-pressure pump 12 is additionally provided on third outlet pipe.I.e. hydrogen peroxide and
It is promoted via third outlet pipe into iron-carbon micro-electrolysis coupling Fenton oxidation pond 4 after waste water mixing by high-pressure pump 12, then via
Water distributing pore, which is uniformly sprayed onto be equipped on iron carbon filler 13 in iron-carbon micro-electrolysis coupling Fenton oxidation pond 4, sufficiently to be reacted.
Since waste water to be processed in the present invention is integral treatment device, pH is generally between 2.3-5.7, therefore, examines
Worry utilizes the acid in waste water, devises and carries out Fenton oxidation and iron-carbon micro-electrolysis reaction under acidic environment.
In iron-carbon micro-electrolysis coupling Fenton oxidation pond 4 double advanced oxidation reaction occurs for waste water, one of which be have it is double
The Fenton's reaction that oxygen water participates in, Fenton's reaction can use Fenton reagent, and Fenton reagent is by H2O2And Fe2+The one kind mixed
The very strong oxidant of oxidability, oxidation mechanism mainly in acid condition (general pH < 3.5), utilize Fe2+As H2O2
Catalyst, generating has very Strong oxdiative electrical property and the very high hydroxyl radical free radical of reactivity, and hydroxyl radical free radical is in aqueous solution
Organic free radical is generated with hardly degraded organic substance, destroys its structure, final oxygenolysis.Fe simultaneously2+It is oxidized to Fe3+It produces
Raw coagulating sedimentation, large amount of organic is condensed and is removed.Containing a large amount of acid in waste water of the invention, the ring of pH < 3.5 can be built
Border, also, also contain a certain amount of Fe in waste water of the invention2+Ion, iron-carbon micro-electrolysis reaction in can also generate a large amount of Fe2 +Ion, these Fe2+Ion can provide raw material for Fenton's reaction, go on smoothly oxidation reaction.Fenton's reaction on the one hand can
Oxygenolysis organic matter, while can also Mn in oxidized waste water2+Ion makes Mn2+Ionic oxide formation at manganese dioxide wadding body, thus
Remove the Mn in waste water2+Ion.
Iron-carbon micro-electrolysis reaction is also intended to carry out in acid condition, and the present invention designs iron-carbon micro-electrolysis and couples Fenton oxidation
Purpose on the one hand be superimposed two kinds of oxidation reaction to improve oxidation efficiency, preferably remove organic matter, further aspect is that
It is reacted using iron-carbon micro-electrolysis and provides Fe for Fenton's reaction2+Ion, while Mn is aoxidized using Fenton's reaction2+Ion, in above-mentioned oxygen
Fe can also be generated by changing in reaction process3+Ion and manganese dioxide wadding body, the two can provide flocculation for the flocculation reaction of next step
Agent.
The lower end that iron-carbon micro-electrolysis couples Fenton oxidation pond 4 is equipped with the 4th outlet pipe 14, and flocculation tank 5 goes out by the 4th
Water pipe 14 couples the connection of Fenton oxidation pond 4 with iron-carbon micro-electrolysis, is equipped with the second agitating device, flocculation reaction in flocculation tank 5
The top in pond 5 is equipped with flocculant dispensing kit 15 and alkali dispensing kit 16, and flocculant dispensing kit 15 and alkali dispensing kit 16 pass through pipeline
It is connected to flocculation tank 5, flocculant dispensing kit 15 adds flocculant poly iron chloride, alkali dispensing kit in flocculation tank 5
16 add calcium hydroxide in flocculation tank 5, since the oxidation reaction in iron-carbon micro-electrolysis coupling Fenton oxidation pond 4 can generate
Partial flocculation agent such as Fe3+Ion and manganese dioxide wadding body, this partial flocculation agent can enter flocculation tank 5, therefore can reduce
The dosage of flocculant in flocculant dispensing kit 15.In addition, in the oxidation reaction in iron-carbon micro-electrolysis coupling Fenton oxidation pond 4,
A part of acid can be consumed, and pH value of waste water can rise, and therefore, can reduce the amount for being added to alkali in flocculation tank 5.
The present invention adds calcium hydroxide in flocculation tank 5, and adjusting wastewater pH is 7-8, on the one hand, with this condition,
Waste water can carry out efficient flocculation reaction, on the other hand, calcium hydroxide meeting and SO4 2-Reaction generates micro-soluble material, and micro-soluble material is again
It is flocculated agent flocculation, to reduce SO in waste water4 2-Content.There is the second agitating device in flocculation tank 5 of the present invention, second stirs
The structure for mixing device is identical with the first agitating device, and the second agitating device can be such that waste water and flocculant is uniformly mixed, and is conducive to
Improve flocculation reaction efficiency.After flocculation reaction, metal ion and SS in waste water can access removal.
The upper end of flocculation tank 5 is equipped with the 5th outlet pipe, and biofilter 6 passes through the 5th outlet pipe and flocculation tank 5
Connection, biofilter 6 is a kind of advanced treatment apparatus, can fall organic matter remaining in waste water and removal of heavy metal ions,
To make waste water meet qualified discharge standard.
The lower end of biofilter 6 is equipped with the 6th outlet pipe, and sterilization pool 7 is connected to by the 6th outlet pipe 14 with biofilter 6,
The top of sterilization pool 7 is equipped with disinfectant dispensing kit 18, and disinfectant dispensing kit 18 is connected to by pipeline with sterilization pool 7, and disinfectant is thrown
Medicine-chest 18 is provided with disinfectant, and disinfectant is bleaching powder.Waste water enters sterilization pool 7 after coming out from biofilter 6, in sterilization pool 7
It is interior sterilized with bleaching powder after can meet reuse standard.The upper end of sterilization pool 7 is equipped with the 7th outlet pipe, meets going out for reuse standard
Water excludes to collect spare through the 7th outlet pipe.
First outlet pipe 9, the second outlet pipe, third outlet pipe, the 4th outlet pipe 14, the 5th outlet pipe, the 6th outlet pipe
14 and the 7th be equipped with solenoid valve on outlet pipe, these solenoid valves can control primary sedimentation tank 1, emulsification pond 2, pipe-line mixer 3,
Iron-carbon micro-electrolysis couple Fenton oxidation pond 4, flocculation tank 5, biofilter 6 and sterilization pool 7 into draining, to make this hair
Bright device being capable of batch-type progress.
It should be noted that the bottom end of primary sedimentation tank 1 and flocculation tank 5 is equipped with sludge bucket, the bottom end of sludge bucket is equipped with
Sludge pipe, sludge pipe are equipped with valve 17, and the sediment accumulated in primary sedimentation tank 1 and flocculation tank 5 is accumulated in sludge bucket, when
When accumulating a certain amount of, then valve 17 is opened, is discharged by sludge pipe.
Embodiment 2
A method of underground coal mine waste water is handled using above-mentioned apparatus, comprising the following steps:
Step 1, underground coal mine waste water is promoted by elevator pump into primary sedimentation tank 1, is staticly settled supernatant after 30min
It is pumped into emulsification pond 2, under stirring, neopelex is added in emulsification pond 2 by emulsifier dispensing kit 10, and
The dosage of neopelex is 10-3Mg/L waste water obtains the water outlet of emulsification pond 2 after emulsifying 10min；
Step 2, pipe-line mixer 3 is passed through in the water outlet of emulsification pond 2, while hydrogen peroxide dispensing kit 11 is thrown in pipe-line mixer 3
Adding mass concentration is 35% hydrogen peroxide, and the dosage of hydrogen peroxide is 0.5g/L waste water, is mixed with the waste water of hydrogen peroxide through pipe
Road mixer 3 enters iron-carbon micro-electrolysis coupling Fenton oxidation pond 4 and carries out oxidation reaction, obtains iron-carbon micro-electrolysis coupling after reacting 1h
Fenton oxidation pond 4 is discharged；
Step 3, the water outlet of iron-carbon micro-electrolysis coupling Fenton oxidation pond 4 enters flocculation tank 5, under stirring, flocculation
Agent dispensing kit 15 adds poly-ferric chloride in flocculation tank 5, and alkali dispensing kit 16 adds hydroxide in flocculation tank 5
Calcium, and the dosage of poly-ferric chloride is 0.01mg/L waste water, it is 7-8 that the dosage of alkali, which keeps wastewater pH, after adding again
10min is stirred, 30min is stood, supernatant is discharged；
Step 4,5 supernatant of flocculation tank enters biofilter 6, anoxic zone and aerobic zone height ratio in biofilter 6
For 1:4, gas-water ratio 3:1, hydraulic loading 1.5m/h, reflux ratio 120% obtains the water outlet of biofilter 6 after being disposed；
Step 5, the water outlet of biofilter 6 enters the progress bleaching powder disinfection of sterilization pool 7, obtains processing water outlet after sanitized.
Underground coal mine waste water in embodiment 2 comes from certain exhaust gas Acidic Waste Water from Coal Mines, using the treatment process pair of embodiment 2
It is handled, and specific experiment the results are shown in Table 1.
1 wastewater treatment result of table
As it can be seen from table 1 apparatus and method of the present invention has good treatment effect to underground coal mine acid waste water,
Effluent index that treated meets GB5749-2006 " standards for drinking water quality " requirement.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within be also intended to include these modifications and variations.
Claims (10)
1. a kind of underground coal mine wastewater treatment and renovation device, which is characterized in that mixed including primary sedimentation tank (1), emulsification pond (2), pipeline
Clutch (3), iron-carbon micro-electrolysis couple Fenton oxidation pond (4), flocculation tank (5), biofilter (6) and sterilization pool (7)；
The side of primary sedimentation tank (1) upper end is equipped with water inlet pipe (8), and the opposite other side is equipped with the first outlet pipe (9), the emulsification
Pond (2) is connected to by first outlet pipe (9) with the primary sedimentation tank (1)；It is thrown equipped with emulsifier the upper end of emulsification pond (2)
Medicine-chest (10), the emulsifier dispensing kit (10) are connected to by pipeline with the emulsification pond (2), are equipped in the emulsification pond (2)
First agitating device；The upper end of emulsification pond (2) is additionally provided with the second outlet pipe；
The pipe-line mixer (3) is connected to by second outlet pipe with the emulsification pond (2), the pipe-line mixer (3)
Top be equipped with hydrogen peroxide dispensing kit (11), the hydrogen peroxide dispensing kit (11) by pipeline and the pipe-line mixer (3) even
Logical, the other end of the pipe-line mixer (3) is equipped with third outlet pipe, and the third outlet pipe extends into the iron-carbon micro-electrolysis
It couples in Fenton oxidation pond (4), and is located at the iron-carbon micro-electrolysis and couples Fenton oxidation pond (4) interior top；The micro- electricity of iron carbon
Iron carbon filler (13) are equipped in decoupling Fenton oxidation pond (4), the lower end of iron-carbon micro-electrolysis coupling Fenton oxidation pond (4) is set
There is the 4th outlet pipe (14)；
The flocculation tank (5) couples Fenton oxidation pond (4) with the iron-carbon micro-electrolysis by the 4th outlet pipe (14)
Connection, the flocculation tank (5) is interior to be equipped with the second agitating device, and the top of the flocculation tank (5) is thrown equipped with flocculant
Medicine-chest (15) and alkali dispensing kit (16), the flocculant dispensing kit (15) and alkali dispensing kit (16) pass through pipeline and the flocculation
Reaction tank (5) connection；The upper end of the flocculation tank (5) is equipped with the 5th outlet pipe；
The biofilter (6) is connected to by the 5th outlet pipe with the flocculation tank (5), the biofilter (6)
Lower end be equipped with the 6th outlet pipe, the sterilization pool (7) by the 6th outlet pipe (14) and the biofilter (6) even
Logical, the upper end of the sterilization pool (7) is equipped with the 7th outlet pipe；
First outlet pipe (9), the second outlet pipe, third outlet pipe, the 4th outlet pipe (14), the 5th outlet pipe, the 6th go out
Solenoid valve is equipped on water pipe (14) and the 7th outlet pipe.
2. underground coal mine wastewater treatment and renovation device according to claim 1, which is characterized in that the primary sedimentation tank (1) with
The bottom end of the flocculation tank (5) is equipped with sludge bucket, and the bottom end of the sludge bucket is equipped with sludge pipe, sets on the sludge pipe
There are valve (17).
3. underground coal mine wastewater treatment and renovation device according to claim 1, which is characterized in that the emulsifier dispensing kit
(10) it is provided with emulsifier, the emulsifier is neopelex.
4. underground coal mine wastewater treatment and renovation device according to claim 1, which is characterized in that first agitating device
It include motor, stirring rod and stirring blade with second agitating device, the motor is located at the emulsification pond (2) or described
On the top plate of flocculation tank (5), one end of the stirring rod passes through emulsification pond (2) or the flocculation tank (5)
Top plate, and the output axis connection with the motor, the other end are provided with the stirring blade.
5. underground coal mine wastewater treatment and renovation device according to claim 1, which is characterized in that third outlet pipe position
Multiple water distributing pores are offered in the part in iron-carbon micro-electrolysis coupling Fenton oxidation pond (4).
6. underground coal mine wastewater treatment and renovation device according to claim 5, which is characterized in that on the third outlet pipe
It is additionally provided with high-pressure pump (12).
7. underground coal mine wastewater treatment and renovation device according to claim 1, which is characterized in that the flocculant dispensing kit
(15) it is provided with flocculant, the flocculant is poly-ferric chloride；The alkali dispensing kit (16) is provided with alkali, and the alkali is hydrogen-oxygen
Change calcium.
8. underground coal mine wastewater treatment and renovation device according to claim 1, which is characterized in that the sterilization pool (7)
Top is equipped with disinfectant dispensing kit (18), and the disinfectant dispensing kit (18) is connected to by pipeline with the sterilization pool (7).
9. underground coal mine wastewater treatment and renovation device according to claim 8, which is characterized in that the disinfectant dispensing kit
(18) it is provided with disinfectant, the disinfectant is bleaching powder.
10. utilizing the method for the described in any item device processing underground coal mine waste water of claim 1-9, which is characterized in that including
Following steps:
Step 1, underground coal mine waste water is promoted by elevator pump in primary sedimentation tank (1), supernatant is pumped into cream after staticly settling
Change pond (2), under stirring, emulsifier is added in emulsification pond (2) by emulsifier dispensing kit (10)；
Step 2, pipe-line mixer (3) are passed through in emulsification pond (2) water outlet, while hydrogen peroxide dispensing kit (11) is past pipe-line mixer (3)
Hydrogen peroxide is inside added, the waste water for being mixed with hydrogen peroxide enters iron-carbon micro-electrolysis coupling Fenton oxidation pond (4) through pipe-line mixer (3)
Oxidation reaction is carried out, end of reaction obtains iron-carbon micro-electrolysis coupling Fenton oxidation pond (4) water outlet；
Step 3, iron-carbon micro-electrolysis coupling Fenton oxidation pond (4) water outlet enters flocculation tank (5), under stirring, flocculation
Agent dispensing kit (15) adds flocculant in flocculation tank (5), and alkali dispensing kit (16) adds alkali in flocculation tank (5),
And the dosage of flocculant is 0.01mg/L waste water, it is 7-8 that the dosage of alkali, which keeps wastewater pH, is stirred for after adding
10min stands 30min, and supernatant is discharged；
Step 4, flocculation tank (5) supernatant enters biofilter (6), and biofilter (6) water outlet is obtained after being disposed；
Step 5, biofilter (6) water outlet enters sterilization pool (7), and processing water outlet is obtained after being disposed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111233218A (en) * | 2020-01-16 | 2020-06-05 | 深圳市蓝清环境科技工程有限公司 | Catalytic FENTON wastewater treatment process |
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| AU2010306775A1 (en) * | 2009-10-14 | 2012-06-07 | The Administrators Of The Tulane Educational Fund | Novel multifunctional materials for in-situ environmental remediation of chlorinated hydrocarbons |
| CN103121780A (en) * | 2013-03-13 | 2013-05-29 | 天津市朗敦环保科技有限公司 | Oil sludge treatment method |
| CN105906142A (en) * | 2016-04-29 | 2016-08-31 | 安徽华骐环保科技股份有限公司 | Garbage leachate deep treatment system and method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010306775A1 (en) * | 2009-10-14 | 2012-06-07 | The Administrators Of The Tulane Educational Fund | Novel multifunctional materials for in-situ environmental remediation of chlorinated hydrocarbons |
| CN103121780A (en) * | 2013-03-13 | 2013-05-29 | 天津市朗敦环保科技有限公司 | Oil sludge treatment method |
| CN105906142A (en) * | 2016-04-29 | 2016-08-31 | 安徽华骐环保科技股份有限公司 | Garbage leachate deep treatment system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111233218A (en) * | 2020-01-16 | 2020-06-05 | 深圳市蓝清环境科技工程有限公司 | Catalytic FENTON wastewater treatment process |
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