CN102815814A - Mine drainage water deep treatment technology - Google Patents
Mine drainage water deep treatment technology Download PDFInfo
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- CN102815814A CN102815814A CN2011101555193A CN201110155519A CN102815814A CN 102815814 A CN102815814 A CN 102815814A CN 2011101555193 A CN2011101555193 A CN 2011101555193A CN 201110155519 A CN201110155519 A CN 201110155519A CN 102815814 A CN102815814 A CN 102815814A
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Abstract
The invention discloses a mine drainage water deep treatment technology. The technology comprises the following steps: 1, pumping pretreatment water to a self-cleaning filter through a water feeding pump; 2, sending sodium hypochlorite and sodium hydroxide medicines to the self-cleaning filter, and mixing and reacting with raw water; 3, allowing the raw water to enter an ultra-filtration device after the filtration of the self-cleaning filter; 4, allowing the treatment water to flow to an intermediate water pool after the filtration; 5, sending to a cartridge filter; 6, allowing the pretreatment water subjected to the reaction of the cartridge filter to enter a reverse osmosis device; 7, allowing the treatment water to a discharge reuse pool for discharge reuse after the filtration of the reverse osmosis device, and allowing strong brine discharged from the reverse osmosis device to a strong brine pool; and 8, carrying out ozone sterilizing disinfection of the treatment water in the discharge reuse pool to a clean water pool. The mine drainage water deep treatment technology disclosed in the invention has the advantages of reasonable and compact process, small occupied land, high automation degree, and stable water quality.
Description
?
Technical field
The present invention relates to a kind of sewage treatment process, particularly a kind of shaft draining water depth treatment process.
Background technology
Research and application that the China's coal-mine waste water of mine is handled are started late, and processing rate is lower.In recent years to the processing of pit water; Especially the work of advanced treatment aspect just progressively launches; And the processing of pit water that suspension content higher not high for salinity; Experience than mature and feasible is arranged, generally adopt operations such as coagulation, deposition (or buoyance lift) and filtration, sterilization to handle after, its effluent quality can reach basically to produce and use and the requirement of life standard for drinking.But the concentrated water pit water is owing to contain a large amount of Cl
-1, Mg
2+, K
+, Ca
2+, Na
+Plasma, hardness is high, and wherein saliferous is up to 10000～15000 mm/l, and is chloride up to 1000～5000mm/l; Turbidity is up to 300～1500mm/l, and most meta-acids of water quality or inclined to one side alkali are unfavorable for plant growth, can make the soil salinization; As BW, easy scale formation, make the building water, can influence concrete quality; People's long-term drinking will cause diarrhoea and maldigestion, and will be especially more serious to heart and nephropathy patient influence.Though present domestic coal academy of sciences Hangzhou Institute for Environmental Research etc. adopt methods such as physics, chemistry, effect is also not obvious, and cost is higher.China's waste water of mine treatment technology mainly will be highly-mineralized mine water and advanced treatment from now on, the requirement that realization collects back, but processing costs at present is higher, and the technology that collects does not back bear fruit as yet, the development of influence restriction business economic.
Therefore, quicken the development and utilization of mine water resource, seek advanced person and economically viable technology and technical finesse pit water, become the only way of the active demand and the realization Sustainable development of the ordinary production operation of assurance colliery as producing and domestic water.
Domestic conventional process adopts earlier pretreated water through broken filter, activated carbon filtration, secondary filter, electrodialysis, ion-exchanger.Investment cost is big, and floor space is big, and technology is unstable, and water quality cannot say for sure to demonstrate,prove.
Summary of the invention
Goal of the invention:, the invention discloses the shaft draining water depth treatment process of a kind of technology compactness, water conditioning to the deficiency of prior art.
Technical scheme: the invention discloses a kind of shaft draining water depth treatment process, may further comprise the steps:
(1) pretreated water gets into self-cleaning filter through service pump;
(2) the ultrafiltration administration device is sent into Youxiaolin and sodium hydroxide medicament in the self-cleaning filter and former water hybrid reaction;
(3) former water filters the laggard ultra-filtration equipment of going into through self-cleaning filter;
(4) treating water after ultra-filtration equipment filters water outlet to intermediate pool;
(5) pretreated water is sent into security personnel's strainer by the r-o-boosting pump in the intermediate pool;
(6) the r-o-administration device is sent the sodium sulfite anhy 96 medicament into security personnel's strainer and pretreated water mixing;
(7) the reverse osmosis antisludging agent device is sent Sodium hexametaphosphate 99 (PWT) Scale inhibitors into security personnel's strainer and pretreated water mixing;
(8) get into reverse osmosis unit through the reacted pretreated water of security personnel's strainer;
(9) treating water water outlet after reverse osmosis unit filters can be discharged reuse to discharging reuse tank, and the strong brine that reverse osmosis unit is discharged is to the strong brine pond;
(10) treating water of discharging in the reuse tank after the ozone sterilization sterilization to clean water basin.
(11) self-cleaning filter carries out self-stip after operation for some time, returns the pretreated water pond from clear backwash water, and impurity particle effluxes, and self-cleaning filter operation pressure reduction is greater than 0.05Mpa-0.10Mpa;
(12) operation is after 3-8 month, and the hyperfiltration reverse-rinsing device is drawn pretreated water from middle pond ultra-filtration equipment is carried out the physics backwash, and hyperfiltration reverse-rinsing water returns the pretreated water pond, and the backwash time of ultra-filtration equipment is 20-60 minute;
(13) operation confirmed that according to inlet outlet pressure differential or time the ultrafiltration cleaning device carries out chemistry to ultra-filtration equipment and strengthens cleaning after 3-8 month, and ultrafiltrationization adds returning of wash water and washes treating pond, and inlet outlet pressure differential is greater than 0.1Mpa;
(14) operation confirmed that according to the time ultrafiltration cleaning device carries out matting to ultra-filtration equipment after 3-8 month, and returning of ultrafiltration wash water washed treating pond, moves 24 hours continuously;
The r-o-flushing arrangement is drawn pretreated water from the discharging reuse tank reverse osmosis unit is carried out the physics flushing when (15) shutting down, and the r-o-wash-down water returns the pretreated water pond, and flushing pressure is not more than 0.20-0.35Mpa;
(16) intake pressure of reverse osmosis membrane apparatus rise 15% or produce water conductivity rise 15% or flow reduce to change in 15% o'clock and wash once; Wash security personnel's strainer according to intake pressure variation r-o-cleaning device through change reverse osmosis unit is carried out matting, returning of r-o-wash water washed treating pond.
The said pretreated water water quality requirement of step 1 COD is not more than that 1-50 ㎎/l, BOD are not more than 1-10 ㎎/l, SS is not more than 1-10 ㎎/l.
The said ultra-filtration equipment of step 4 filters particle and suspended substance in the back filtering water, makes the turbidity＜0-1NTU of effluent quality, pollution index SDI (15 minutes)＜1-3.
The filtering accuracy of the said security personnel's strainer of step 5-8 is smaller or equal to 3-5 μ m.
The said reverse osmosis unit filtering accuracy of step 8-9 is smaller or equal to 5-10 μ m.
Said ultra-filtration equipment retaining molecular weight is not more than 10-15 ten thousand Dalton (dalton).
The ratio of desalinization of said reverse osmosis unit is 99%-99.8%, and the recovery is 60%-68%.
Step 13,14 and 16 saidization dilutions are that to adopt the PH that has disposed be that 12 sodium hydroxide solution and the PH that disposed are 2 hydrochloric acid soln or citric acid solution.
Water is sterilized through ozone sterilization in the said discharging reuse tank of step 10, and add-on is 0.2-1.6 ㎎/l.
Establish intermediate pool (water tank) behind the said ultra-filtration equipment, the assurance system moves continuously.
The strong brine and the matting draining that produce during the reverse osmosis membrane apparatus operation should separately be discharged, and are beneficial to follow-up classification processing and rationally reclaim.
The backwash of ultra-filtration equipment, reverse osmosis membrane apparatus or change are washed all online and are carried out automatically.
A kind of shaft draining water depth treatment process, it comprises service pump, self-cleaning filter, ultra-filtration equipment; Intermediate pool, ultrafiltration administration device, hyperfiltration reverse-rinsing device, ultrafiltration cleaning device, r-o-boosting pump; Security personnel's strainer, reverse osmosis unit, r-o-administration device, reverse osmosis antisludging agent device; R-o-flushing arrangement, r-o-cleaning device are changed and are washed security personnel's strainer, strong brine pond, ozonizer, clean water basin.Its improved pretreated water advanced treatment process is simple, reasonable, and energy consumption is low, and running cost is low.Every cubic metre of pretreated water current consumption is 1.8kw/h, handles 1.75 yuan of every cubic metre of pretreated water expenses, and day processing 1 a ten thousand stere pretreated water investment cost is 6,500,000 yuan.Through the pretreated water of this art breading, can reach the standard-required of " drinking water sanitary standard " GB5749-2006.
Beneficial effect: a kind of shaft draining water depth treatment process disclosed by the invention, technology is reasonable, compactness, floor space is little, and level of automation is high, water conditioning.
Embodiment
Below in conjunction with embodiment the present invention is done further explanation.
Embodiment 1
(COD50 ㎎/l, BOD10 ㎎/l, SS10 ㎎/l contain Mg to colliery high salt mine drainage water pretreatment water
2+700mg/L Ca
2+400mg/l, K
+10mg/l, Na
+3700mg/L plasma, saltiness are 16000mg/L)
Pretreated water gets into self-cleaning filter through service pump; 3 mg/l Youxiaolin medicaments are sent into pipeline to the ultrafiltration administration device simultaneously and pretreated water is mixed into self-cleaning filter; Filter the laggard ultra-filtration equipment of going into through self-cleaning filter; The ultra-filtration equipment water outlet is to intermediate pool, the turbidity 0.9NTU of intermediate pool water quality, pollution index SDI (15 minutes) 2.8.Pretreated water is sent into security personnel's strainer by the r-o-boosting pump in the intermediate pool; 8mg/l sodium sulfite anhy 96 medicament is sent into pipeline to the r-o-administration device simultaneously and pretreated water is mixed into security personnel's strainer; The 4mg/lPWT Scale inhibitors is sent into pipeline to while reverse osmosis antisludging agent device and pretreated water is mixed into security personnel's strainer; Pretreated water, medicament, Scale inhibitors mixture through security personnel's strainer get into reverse osmosis unit; The reverse osmosis unit water outlet can be discharged reuse to discharging reuse tank, and the strong brine that reverse osmosis unit is discharged is to the strong brine pond.Ozonizer adds 0.2-1.6mg/l ozone to water in the discharging reuse tank to carry out behind the sterilization and disinfection to clean water basin.
Clean
1, self-cleaning filter is anti-automatically cleans
Behind the self-cleaning filter operation pressure reduction 0.08Mpa, self-cleaning filter carries out anti-automatically the cleaning, returns the pretreated water pond from clear backwash water, and impurity particle effluxes.
2, hyperfiltration reverse-rinsing
Every operation is after 20-40 minute, and pretreated water carried out the physics backwash to ultra-filtration equipment after the hyperfiltration reverse-rinsing device was drawn ultrafiltration from middle pond, and hyperfiltration reverse-rinsing water returns the pretreated water pond.
3, ultrafiltrationization adds and washes
Behind the ultra-filtration equipment inlet outlet pressure differential 0.15Mpa (or moving 24 hours continuously); The ultrafiltration cleaning device carries out chemistry to ultra-filtration equipment and strengthens cleaning; At first add 230 mg/l Youxiaolin and 520 mg/l sodium hydroxide carried out wash cycles 3 minutes; Soaked then 12 minutes, flushing with clean water 3 minutes is carried out chemistry with 31% hydrochloric acid, 500 mg/l according to top step and then and is strengthened cleaning.Ultrafiltrationization adds washing water discharge and washes treating pond and handle to changing.
3, ultrafiltrationization is washed
After ultra-filtration equipment moved May, the ultrafiltration cleaning device carried out matting to ultra-filtration equipment.Add at first that to have configured PH be that 12 sodium hydroxide solution carried out wash cycles 35 minutes, soaked then 300 minutes, recycling was cleaned 65 minutes, changed washing water discharge to treating pond and handled.Using and then and having configured PH is that 2 hydrochloric acid soln carries out matting according to top step.The ultrafiltration washing water discharge is washed treating pond to change and is handled.
4, r-o-ization is washed
Reverse osmosis unit intake pressure rising 15% or the rising 15% of product water conductivity or flow reduced by 15% o'clock; The r-o-cleaning device is washed security personnel's strainer through change reverse osmosis unit is carried out matting; Add at first that to have configured PH be that 12 sodium hydroxide solution carried out wash cycles 35 minutes; Soaked then 300 minutes, recycling was cleaned 65 minutes, changed washing water discharge to treating pond and handled.Using and then and having configured PH is that 2 hydrochloric acid soln carries out matting according to top step.The r-o-washing water discharge is washed treating pond to change and is handled.
4, r-o-flushing
After reverse osmosis unit was shut down, pretreated water carried out the physics flushing to reverse osmosis unit after the r-o-flushing arrangement was drawn r-o-from the discharging reuse tank, and the r-o-wash-down water returns the pretreated water pond.
Effluent clear solution can reach the standard-required of " drinking water sanitary standard " GB5749-2006, and ratio of desalinization is not less than 99%, the recovery 65%.
Embodiment 2:
(COD45 ㎎/l, BOD10 ㎎/l, SS10 ㎎/l contain Mg to colliery high salt mine drainage water pretreatment water
2+800mg/L Ca
2+300mg/l, K
+10mg/l, Na
+3500mg/L plasma, saltiness are 10000mg/l)
Pretreated water gets into self-cleaning filter through service pump; 2 mg/l Youxiaolin medicaments are sent into pipeline to the ultrafiltration administration device simultaneously and pretreated water is mixed into self-cleaning filter; Filter the laggard ultra-filtration equipment of going into through self-cleaning filter; The ultra-filtration equipment water outlet is to intermediate pool, the turbidity 0.8NTU of intermediate pool water quality, pollution index SDI (15 minutes) 2.5.Pretreated water is sent into security personnel's strainer by the r-o-boosting pump in the intermediate pool; 6mg/l sodium sulfite anhy 96 medicament is sent into pipeline to the r-o-administration device simultaneously and pretreated water is mixed into security personnel's strainer; The 4mg/lPWT Scale inhibitors is sent into pipeline to while reverse osmosis antisludging agent device and pretreated water is mixed into security personnel's strainer; Pretreated water, medicament, Scale inhibitors mixture through security personnel's strainer get into reverse osmosis unit; The reverse osmosis unit water outlet can be discharged reuse to discharging reuse tank, and the strong brine that reverse osmosis unit is discharged is to the strong brine pond.Ozonizer adds 0.2-1.6mg/l ozone to water in the discharging reuse tank to carry out behind the sterilization and disinfection to clean water basin.
Clean
1, self-cleaning filter is anti-automatically cleans
Behind the self-cleaning filter operation pressure reduction 0.08Mpa, self-cleaning filter carries out anti-automatically the cleaning, returns the pretreated water pond from clear backwash water, and impurity particle effluxes.
2, hyperfiltration reverse-rinsing
Every operation is after 30 minutes, and pretreated water carried out the physics backwash to ultra-filtration equipment after the hyperfiltration reverse-rinsing device was drawn ultrafiltration from middle pond, and hyperfiltration reverse-rinsing water returns the pretreated water pond.
3, ultrafiltrationization adds and washes
Behind the ultra-filtration equipment inlet outlet pressure differential 0.12Mpa (or moving 24 hours continuously); The ultrafiltration cleaning device carries out chemistry to ultra-filtration equipment and strengthens cleaning; At first add 200 mg/l Youxiaolin and 500 mg/l sodium hydroxide carried out wash cycles 3 minutes; Soaked then 10 minutes, flushing with clean water 3 minutes is carried out chemistry with 31% hydrochloric acid, 500 mg/l according to top step and then and is strengthened cleaning.Ultrafiltrationization adds washing water discharge and washes treating pond and handle to changing.
3, ultrafiltrationization is washed
After ultra-filtration equipment moved May, the ultrafiltration cleaning device carried out matting to ultra-filtration equipment.Add at first that to have configured PH be that 12 sodium hydroxide solution carried out wash cycles 30 minutes, soaked then 300 minutes, clear 60 minutes of recycling is changed washing water discharge to treating pond and is handled.Using and then and having configured PH is that 2 hydrochloric acid soln carries out matting according to top step.The ultrafiltration washing water discharge is washed treating pond to change and is handled.
4, r-o-ization is washed
Reverse osmosis unit intake pressure rising 15% or the rising 15% of product water conductivity or flow reduced by 15% o'clock; The r-o-cleaning device is washed security personnel's strainer through change reverse osmosis unit is carried out matting; Add at first that to have configured PH be that 12 sodium hydroxide solution carried out wash cycles 30 minutes; Soaked then 300 minutes, recycling was cleaned 60 minutes, changed washing water discharge to treating pond and handled.Using and then and having configured PH is that 2 hydrochloric acid soln carries out matting according to top step.The r-o-washing water discharge is washed treating pond to change and is handled.
4, r-o-flushing
After reverse osmosis unit was shut down, pretreated water carried out the physics flushing to reverse osmosis unit after the r-o-flushing arrangement was drawn r-o-from the discharging reuse tank, and the r-o-wash-down water returns the pretreated water pond.
Effluent clear solution can reach the standard-required of " drinking water sanitary standard " GB5749-2006, and ratio of desalinization is not less than 99.3%, the recovery 66%.
Embodiment 3:
(COD30 ㎎/l, BOD5 ㎎/l, SS6 ㎎/l contain Mg to colliery high salt mine drainage water pretreatment water
2+400mg/L Ca
2+300mg/l, K
+15mg/l, Na
+2400mg/L plasma, saltiness are 5000mg/L)
Pretreated water gets into self-cleaning filter through service pump; 1 mg/l Youxiaolin medicament is sent into pipeline to the ultrafiltration administration device simultaneously and pretreated water is mixed into self-cleaning filter; Filter the laggard ultra-filtration equipment of going into through self-cleaning filter; The ultra-filtration equipment water outlet is to intermediate pool, the turbidity 0.3NTU of intermediate pool water quality, pollution index SDI (15 minutes) 2.Pretreated water is sent into security personnel's strainer by the r-o-boosting pump in the intermediate pool; 4mg/l sodium sulfite anhy 96 medicament is sent into pipeline to the r-o-administration device simultaneously and pretreated water is mixed into security personnel's strainer; The 2mg/lPWT Scale inhibitors is sent into pipeline to while reverse osmosis antisludging agent device and pretreated water is mixed into security personnel's strainer; Pretreated water, medicament, Scale inhibitors mixture through security personnel's strainer get into reverse osmosis unit; The reverse osmosis unit water outlet can be discharged reuse to discharging reuse tank, and the strong brine that reverse osmosis unit is discharged is to the strong brine pond.Ozonizer adds 0.2-1.6mg/l ozone to water in the discharging reuse tank to carry out behind the sterilization and disinfection to clean water basin.
Clean
1, self-cleaning filter is anti-automatically cleans
Behind the self-cleaning filter operation pressure reduction 0.06Mpa, self-cleaning filter carries out anti-automatically the cleaning, returns the pretreated water pond from clear backwash water, and impurity particle effluxes.
2, hyperfiltration reverse-rinsing
Every operation is after 40 minutes, and pretreated water carried out the physics backwash to ultra-filtration equipment after the hyperfiltration reverse-rinsing device was drawn ultrafiltration from middle pond, and hyperfiltration reverse-rinsing water returns the pretreated water pond.
3, ultrafiltrationization adds and washes
The ultra-filtration equipment inlet outlet pressure differential greater than 0.12Mpa (or moving 24 hours continuously) after; The ultrafiltration cleaning device carries out chemistry to ultra-filtration equipment and strengthens cleaning; At first add 150 mg/l Youxiaolin and 450 mg/l sodium hydroxide carried out wash cycles 1.5 minutes; Soaked then 5 minutes, flushing with clean water 2 minutes is carried out chemistry with 31% hydrochloric acid, 350 mg/l according to top step and then and is strengthened cleaning.Ultrafiltrationization adds washing water discharge and washes treating pond and handle to changing.
3, ultrafiltrationization is washed
After ultra-filtration equipment moved June, the ultrafiltration cleaning device carried out matting to ultra-filtration equipment.Add at first that to have configured PH be that 12 sodium hydroxide solution carried out wash cycles 20 minutes, soaked then 200 minutes, recycling was cleaned 50 minutes, changed washing water discharge to treating pond and handled.Using and then and having configured PH is that 2 hydrochloric acid soln carries out matting according to top step.The ultrafiltration washing water discharge is washed treating pond to change and is handled.
4, r-o-ization is washed
Reverse osmosis unit intake pressure rising 15% or the rising 15% of product water conductivity or flow reduced by 15% o'clock; The r-o-cleaning device is washed security personnel's strainer through change reverse osmosis unit is carried out matting; Add at first that to have configured PH be that 12 sodium hydroxide solution carried out wash cycles 20 minutes; Soaked then 200 minutes, recycling was cleaned 50 minutes, changed washing water discharge to treating pond and handled.Using and then and having configured PH is that 2 hydrochloric acid soln carries out matting according to top step.The r-o-washing water discharge is washed treating pond to change and is handled.
4, r-o-flushing
After reverse osmosis unit was shut down, pretreated water carried out the physics flushing to reverse osmosis unit after the r-o-flushing arrangement was drawn r-o-from the discharging reuse tank, and the r-o-wash-down water returns the pretreated water pond.
Effluent clear solution can reach the standard-required of " drinking water sanitary standard " GB5749-2006, and ratio of desalinization is not less than 99.8%, the recovery 68%.
The invention provides a kind of thinking and method of shaft draining water depth treatment process; The method and the approach of concrete this technical scheme of realization are a lot; The above only is a preferred implementation of the present invention, should be pointed out that for those skilled in the art; Under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention, and all available prior art of each integral part not clear and definite in the present embodiment realizes.
Claims (9)
1. a shaft draining water depth treatment process is characterized in that, may further comprise the steps:
(1) pretreated water gets into self-cleaning filter through service pump;
(2) the ultrafiltration administration device is sent into Youxiaolin and sodium hydroxide medicament in the self-cleaning filter and former water hybrid reaction;
(3) former water filters the laggard ultra-filtration equipment of going into through self-cleaning filter;
(4) treating water after ultra-filtration equipment filters water outlet to intermediate pool;
(5) pretreated water is sent into security personnel's strainer by the r-o-boosting pump in the intermediate pool;
(6) the r-o-administration device is sent the sodium sulfite anhy 96 medicament into security personnel's strainer and pretreated water mixing;
(7) the reverse osmosis antisludging agent device is sent Sodium hexametaphosphate 99 (PWT) Scale inhibitors into security personnel's strainer and pretreated water mixing;
(8) get into reverse osmosis unit through the reacted pretreated water of security personnel's strainer;
(9) treating water water outlet after reverse osmosis unit filters can be discharged reuse to discharging reuse tank, and the strong brine that reverse osmosis unit is discharged is to the strong brine pond;
(10) treating water of discharging in the reuse tank after the ozone sterilization sterilization to clean water basin;
(11) self-cleaning filter carries out self-stip after operation for some time, returns the pretreated water pond from clear backwash water, and impurity particle effluxes, and self-cleaning filter operation pressure reduction is greater than 0.05Mpa-0.10Mpa;
(12) operation is after 3-8 month, and the hyperfiltration reverse-rinsing device is drawn pretreated water from middle pond ultra-filtration equipment is carried out the physics backwash, and hyperfiltration reverse-rinsing water returns the pretreated water pond, and the backwash time of ultra-filtration equipment is 20-60 minute;
(13) operation confirmed that according to inlet outlet pressure differential or time the ultrafiltration cleaning device carries out chemistry to ultra-filtration equipment and strengthens cleaning after 3-8 month, and ultrafiltrationization adds returning of wash water and washes treating pond, and inlet outlet pressure differential is greater than 0.1Mpa;
(14) operation confirmed that according to the time ultrafiltration cleaning device carries out matting to ultra-filtration equipment after 3-8 month, and returning of ultrafiltration wash water washed treating pond, moves 24 hours continuously;
The r-o-flushing arrangement is drawn pretreated water from the discharging reuse tank reverse osmosis unit is carried out the physics flushing when (15) shutting down, and the r-o-wash-down water returns the pretreated water pond, and flushing pressure is not more than 0.20-0.35Mpa;
(16) intake pressure of reverse osmosis membrane apparatus rise 15% or produce water conductivity rise 15% or flow reduce to change in 15% o'clock and wash once; Wash security personnel's strainer according to intake pressure variation r-o-cleaning device through change reverse osmosis unit is carried out matting, returning of r-o-wash water washed treating pond.
2. a kind of shaft draining water depth treatment process according to claim 1 is characterized in that, the said pretreated water water quality requirement of step 1 COD is not more than that 1-50 ㎎/l, BOD are not more than 1-10 ㎎/l, SS is not more than 1-10 ㎎/l.
3. a kind of shaft draining water depth treatment process according to claim 1 is characterized in that, the said ultra-filtration equipment of step 4 filters particle and suspended substance in the back filtering water, makes the turbidity＜0-1NTU of effluent quality, pollution index SDI (15 minutes)＜1-3.
4. a kind of shaft draining water depth treatment process according to claim 1 is characterized in that the filtering accuracy of the said security personnel's strainer of step 5-8 is smaller or equal to 3-5 μ m.
5. a kind of shaft draining water depth treatment process according to claim 1 is characterized in that the said reverse osmosis unit filtering accuracy of step 8-9 is smaller or equal to 5-10 μ m.
6. according to claim 1 or 3 described a kind of shaft draining water depth treatment process, it is characterized in that said ultra-filtration equipment retaining molecular weight is not more than 10-15 ten thousand Dalton (dalton).
7. according to claim 1 or 5 described a kind of shaft draining water depth treatment process, it is characterized in that the ratio of desalinization of said reverse osmosis unit is 99%-99.8%, the recovery is 60%-68%.
8. a kind of shaft draining water depth treatment process according to claim 1 is characterized in that, step 13,14 and 16 saidization dilutions are that to adopt the PH that has disposed be that 12 sodium hydroxide solution and the PH that disposed are 2 hydrochloric acid soln or citric acid solution.
9. a kind of shaft draining water depth treatment process according to claim 1 is characterized in that water is sterilized through ozone sterilization in the said discharging reuse tank of step 10, and add-on is 0.2-1.6 ㎎/l.
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| CN2011101555193A CN102815814A (en) | 2011-06-10 | 2011-06-10 | Mine drainage water deep treatment technology |
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| CN104445693A (en) * | 2014-11-30 | 2015-03-25 | 赵曙光 | Production equipment of special water for preparing emulsion under coal mine |
| CN104445693B (en) * | 2014-11-30 | 2016-04-13 | 赵曙光 | The production unit of emulsion dedicated water is joined under a kind of mine |
| CN104710040A (en) * | 2015-03-19 | 2015-06-17 | 南京九思高科技有限公司 | High-recovery-rate process for treating high-sulfate-content high-hardness mine water |
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