CN107381943A - A kind of method for reducing the mine water hardness - Google Patents

A kind of method for reducing the mine water hardness Download PDF

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Publication number
CN107381943A
CN107381943A CN201710643912.4A CN201710643912A CN107381943A CN 107381943 A CN107381943 A CN 107381943A CN 201710643912 A CN201710643912 A CN 201710643912A CN 107381943 A CN107381943 A CN 107381943A
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China
Prior art keywords
water
mixing
hardness
sedimentation basin
tank
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CN201710643912.4A
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Chinese (zh)
Inventor
袁松
刘荣凤
卢丽丽
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Changzhou City Bunuosai Electromechanical Technology Co Ltd
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Priority to CN201710643912.4A priority Critical patent/CN107381943A/en
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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
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
    • C02F3/325—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae as symbiotic combination of algae and bacteria
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/06—Nutrients for stimulating the growth of microorganisms

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biotechnology (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Ecology (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Botany (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of method for reducing the water hardness, field of industrial waste water treatment.Mine water is driven into collecting-tank by the present invention, add coagulant in pond, it is well mixed, stand, water outlet, after collecting-tank water outlet gravity flow enters mixing pit, alga microbial is added in the water inlet of mixing pit, and mixer is set to be stirred in mixing pit, mixing water, will be above-mentioned in mixing water sedimentation basin is promoted to by elevator pump again, in sedimentation basin plus flocculant, stand, filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, water gravity flow after filtering enters clear water reserviors, water outlet.The beneficial effects of the invention are as follows：The hardness in mine water is further reduced using the method for adding alga microbial.

Description

A kind of method for reducing the mine water hardness
Technical field
The present invention relates to a kind of method for reducing the mine water hardness, belong to field of industrial waste water treatment.
Background technology
Coal mine water is by all water for penetrating into down-hole coal excavation space in progress of coal mining.It is this by each lane in underground Road is concentrated to shaft sump heel row to ground.It is this to originally belong to the property of underground water with the mine drainage of coal seam association, but Being mixed into due to coal dust and rock dirt during coal mining, while can be by artificial pollution etc., therefore it has lost its original underground The physical behavior of water, the increase of calcium ions and magnesium ions content so that water body hardness also increases.Research shows：Waste water of mine is through wadding Coagulate, adsorb, precipitating sulfate radical and total hardness that a set of group technology can be effectively reduced in waste water, and making up to country 《Drinking Water water standard》.It is well known that the main removal index of high salinity underground water is dissolubility salt, and it is molten at present The material of more difficult removal is mainly permanent hardness in solution property salt.Therefore, how to reduce water body hardness just turns into treating mine drainage A great problem.
Chinese Patent Application No. CN201510217853.5 discloses a kind of method for reducing water body hardness, including following step Suddenly：First, the alkali compounds aqueous solution that concentration is 0.03mol/L~0.08mol/L is added in staying water, in temperature Precipitation process is carried out to stir 5min~30min under conditions of 10 DEG C~35 DEG C；2nd, chelating agent is added in water body and carries out chela Conjunction is handled, and the chelating agent is ethylene glycol diethyl ether ethylenediamine tetraacetic acid (EDTA), citric acid or 2,4,6- tri-thiol s-triazine trisodium salts； 3rd, coagulant is added in water body and carries out coagulating treatment, the coagulant is the mixing of aluminium polychloride and polyacrylamide Thing；4th, separation of solid and liquid is carried out to water body using centrifugal process.The present invention is using alkali compounds-chelating agent-coagulant combination method drop Low water body hardness, can make the hardness of water body reduce by 50% or so.But pass through alkali compounds-chelating agent-coagulant combination method The method for reducing water body hardness, the reduction of water body hardness only have 50%, and reduced rate is not high, and then the reduction of water body hardness receives Limitation, it is impossible to meet requirement.Therefore research and develop a kind of preparation method for reducing water body hardness to have great importance, not only may be used Can also be to solve the problems, such as that shortage of water resources contributes to reduce water body hardness.
The content of the invention
The technical problems to be solved by the invention：There was only 50% for the reduction of current water body hardness, reduction property is not high, enters And the reduction of water body hardness is restricted, it is impossible to meet requirement, there is provided a kind of method for reducing the water hardness.
In order to solve the above technical problems, the present invention is using technical scheme as described below：
A kind of method for reducing the mine water hardness, this method comprise the following steps：
（1）Mine water is driven into collecting-tank, adds coagulant in pond, mixes, stand, water outlet；
（2）After collecting-tank water outlet gravity flow enters mixing pit, alga microbial is added in the water inlet of mixing pit, and
Set mixer to be stirred with 300~500r/min rotating speeds in mixing pit, obtain mixing water；
（3）Mixing water in will be above-mentioned is promoted to sedimentation basin by elevator pump again, and flocculant is added in sedimentation basin, stands；
（4）Filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, the water gravity flow after filtering enters Clear water reserviors, water outlet.
The step（1）Middle coagulant is aluminum sulfate, aluminium polychloride, ferric trichloride any one, 1L water adds mixed The amount of solidifying agent aluminium polychloride is 750~800mg.
The step（2）The culture of middle alga microbial：
A. by weight, 70~80 parts of water, 30~40 parts of peptones, 17~23 parts of yeast extracts, 15~20 parts of glycerine, 4~7 are taken Part agar, 0.1mmol/L biology revulant 3-MECA polycyclic aromatic hydrocarbon mixing, makes nutrition in the case of high-temperature sterilization Liquid；
B. 5~10mL green algas are forwarded in 1~2L nutrient solutions, 24~26 DEG C of cultivation temperature, intensity of illumination 3000~ 4000Lux, photoperiod illumination 14h：Dark 10h, incubation time is 6~8d, by CaCl2、MgCl2Launched every 3h and arrive nutrient solution In；
C. nutrient solution is filtered, takes out filtrate.
The step（3）Middle flocculant is alum, aluminum sulfate, aluminium chloride any one, the dosage of flocculant is water 3%~5%, stand 10~15min.
The step（4）Middle filler is metamorphic rock, activated carbon in mass ratio 5：2 put into pulverizer, cross 100 mesh sieves, obtain Filler, the dosage of filler are the 5%~6% of water.
The beneficial effects of the invention are as follows：
The present invention is biological based on green alga, by the use of biology revulant as inducible factor, uses CaCl2、MgCl2As battalion Support and lure, absorption of the increase green alga to calcium and magnesium, obtain efficient green alga, improve to treating mine drainage effect, then be aided with coagulant, wadding Several fillers of solidifying agent are further improved to treating mine drainage effect.
Embodiment
Coagulant：Aluminum sulfate, aluminium polychloride, ferric trichloride any one.
Flocculant：Alum, aluminum sulfate, aluminium chloride any one.
Filler：Metamorphic rock, activated carbon in mass ratio 5：2 put into pulverizer, cross 100 mesh sieves, obtain filler.
The culture of alga microbial：
A. by weight, 70~80 parts of water, 30~40 parts of peptones, 17~23 parts of yeast extracts, 15~20 parts of glycerine, 4~7 are taken Part agar, 0.1mmol/L biology revulant 3-MECA polycyclic aromatic hydrocarbon mixing, makes nutrition in the case of high-temperature sterilization Liquid；
B. 5~10mL green algas are forwarded in 1~2L nutrient solutions, 24~26 DEG C of cultivation temperature, intensity of illumination 3000~ 4000Lux, photoperiod illumination 14h：Dark 10h, incubation time is 6~8d, by 3mgCaCl2、4mgMgCl2Thrown every the 3h times It is put into nutrient solution；
C. nutrient solution is filtered, takes out filtrate.
The method that the present invention reduces the mine water hardness：
（1）Mine water is driven into collecting-tank, adds coagulant polymeric aluminium chloride in pond, is well mixed, stand 10~15min, go out Water；
（2）After collecting-tank water outlet gravity flow enters mixing pit, 400~700nm algaes are added in the water inlet of mixing pit
Quasi-microorganism, and set mixer to be stirred with 300~500r/min rotating speeds in mixing pit, mixing time
For 1h~2h, mixing water is obtained；
（3）Mixing water in will be above-mentioned is promoted to sedimentation basin by elevator pump again, in sedimentation basin plus flocculant, stand 10~ 15min；
（4）Filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, the water gravity flow after filtering enters Clear water reserviors, water outlet.
Example 1
Coagulant：Aluminum sulfate, aluminium polychloride, ferric trichloride any one.
Flocculant：Alum, aluminum sulfate, aluminium chloride any one.
Filler：Metamorphic rock, activated carbon in mass ratio 5：2 put into pulverizer, cross 100 mesh sieves, obtain filler.
The culture of alga microbial：
A. by weight, 70 parts of water, 30 parts of peptones, 17 parts of yeast extracts, 15 parts of glycerine, 4 parts of agar are taken, 0.1mmol/L's Biology revulant 3-MECA polycyclic aromatic hydrocarbon is mixed, and nutrient solution is made in the case of high-temperature sterilization；
B. 5mL green algas are forwarded in 1L nutrient solutions, 24 DEG C, intensity of illumination 3000Lux of cultivation temperature, photoperiod illumination 14h：It is black Dark 10h, incubation time 6d, by 3mgCaCl2、4mgMgCl2Launched every 3h into nutrient solution；
C. nutrient solution is filtered, takes out filtrate.
The method that the present invention reduces the mine water hardness：
（1）Mine water is driven into collecting-tank, adds coagulant polymeric aluminium chloride in pond, is well mixed, stand 10min, water outlet；
（2）After collecting-tank water outlet gravity flow enters mixing pit, the micro- life of 400nm algae is added in the water inlet of mixing pit
Thing, and set mixer to be stirred with 300r/min rotating speeds in mixing pit, mixing time 1h, obtain mixed
Heshui；
（3）Mixing water in will be above-mentioned is promoted to sedimentation basin by elevator pump again, and flocculant is added in sedimentation basin, stands 10min；
（4）Filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, the water gravity flow after filtering enters Clear water reserviors, water outlet.
Example 2
Coagulant：Aluminum sulfate, aluminium polychloride, ferric trichloride any one.
Flocculant：Alum, aluminum sulfate, aluminium chloride any one.
Filler：Metamorphic rock, activated carbon in mass ratio 5：2 put into pulverizer, cross 100 mesh sieves, obtain filler.
The culture of alga microbial：
A. by weight, 75 parts of water, 35 parts of peptones, 19 parts of yeast extracts, 18 parts of glycerine, 5 parts of agar are taken, 0.1mmol/L's Biology revulant 3-MECA polycyclic aromatic hydrocarbon is mixed, and nutrient solution is made in the case of high-temperature sterilization；
B. 8mL green algas are forwarded in 1.5L nutrient solutions, 25 DEG C, intensity of illumination 3500Lux of cultivation temperature, photoperiod illumination 14h： Dark 10h, incubation time 7d, by 3mgCaCl2、4mgMgCl2Launch into nutrient solution and cultivate every 3h；
C. nutrient solution is filtered, takes out filtrate.
The method that the present invention reduces the mine water hardness：
（1）Mine water is driven into collecting-tank, adds coagulant polymeric aluminium chloride in pond, is well mixed, stand 12min, water outlet；
（2）After collecting-tank water outlet gravity flow enters mixing pit, the micro- life of 500nm algae is added in the water inlet of mixing pit
Thing, and set mixer to be stirred with 400r/min rotating speeds in mixing pit, mixing time 1.5h, obtain
Mixing water；
（3）Mixing water in will be above-mentioned is promoted to sedimentation basin by elevator pump again, and flocculant is added in sedimentation basin, stands 12min；
（4）Filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, the water gravity flow after filtering enters Clear water reserviors, water outlet.
Example 3
Coagulant：Aluminum sulfate, aluminium polychloride, ferric trichloride any one.
Flocculant：Alum, aluminum sulfate, aluminium chloride any one.
Filler：Metamorphic rock, activated carbon in mass ratio 5：2 put into pulverizer, cross 100 mesh sieves, obtain filler.
The culture of alga microbial：
A. by weight, 80 parts of water, 40 parts of peptones, 23 parts of yeast extracts, 20 parts of glycerine, 7 parts of agar are taken, 0.1mmol/L's Biology revulant 3-MECA polycyclic aromatic hydrocarbon is mixed, and nutrient solution is made in the case of high-temperature sterilization；
B. 10mL green algas are forwarded in 2L nutrient solutions, 26 DEG C, intensity of illumination 4000Lux of cultivation temperature, photoperiod illumination 14h： Dark 10h, incubation time 8d, by 3mgCaCl2、4mgMgCl2Launch into nutrient solution and cultivate every 3h；
C. nutrient solution is filtered, takes out filtrate.
The method that the present invention reduces the mine water hardness：
（1）Mine water is driven into collecting-tank, adds coagulant polymeric aluminium chloride in pond, is well mixed, stand 15min, water outlet；
（2）After collecting-tank water outlet gravity flow enters mixing pit, the micro- life of 700nm algae is added in the water inlet of mixing pit
Thing, and set mixer to be stirred with 500r/min rotating speeds in mixing pit, mixing time 2h, obtain mixed
Heshui；
（3）Mixing water in will be above-mentioned is promoted to sedimentation basin by elevator pump again, and flocculant is added in sedimentation basin, stands 15min；
（4）Filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, the water gravity flow after filtering enters Clear water reserviors, water outlet.
Reference examples：Traditional handicraft lime method reduces the hardness of water.
The assay method of the water hardness：EDTA titrations.
As a result it is as shown in table 1.
Table 1：
Detection project Example 1 Example 2 Example 3 Reference examples
Total hardness in water inlet（mg/L） 301.69 303.27 310.58 290.66~299.73
Total hardness in water outlet（mg/L） 265.63 260.15 258.76 267.35~274.57
Clearance（%） 83.5 87.6 90.3 80.2~83.9
As seen from the above table, water hardness reduced rate of the present invention is high, meets requirement, is worthy to be popularized and uses.

Claims (5)

  1. A kind of 1. method for reducing the mine water hardness, it is characterised in that this method comprises the following steps：
    （1）Mine water is driven into collecting-tank, adds coagulant in pond, is well mixed, stand, water outlet；
    （2）After collecting-tank water outlet gravity flow enters mixing pit, alga microbial is added in the water inlet of mixing pit, and
    Set mixer to be stirred with 300~500r/min rotating speeds in mixing pit, obtain mixing water；
    （3）Mixing water in will be above-mentioned is promoted to sedimentation basin by elevator pump again, and flocculant is added in sedimentation basin, stands；
    （4）Filler is added in filter tank, the water stood in sedimentation basin is squeezed into filter tank, is filtered, the water gravity flow after filtering enters Clear water reserviors, water outlet.
  2. 2. the method for the water hardness is reduced according to claim 1, it is characterised in that the step（1）Middle coagulant is sulfuric acid Aluminium, aluminium polychloride, ferric trichloride any one, the amount of 1L water dosing coagulant aluminium polychloride is 750~800mg.
  3. 3. the method for the water hardness is reduced according to claim 1, it is characterised in that the step（2）Middle alga microbial Culture：
    A. by weight, 70~80 parts of water, 30~40 parts of peptones, 17~23 parts of yeast extracts, 15~20 parts of glycerine, 4~7 are taken Part agar, 0.1mmol/L biology revulant 3-MECA polycyclic aromatic hydrocarbon mixing, high-temperature sterilization, makes nutrient solution；
    B. 5~10mL green algas are forwarded in 1~2L nutrient solutions, 24~26 DEG C of cultivation temperature, intensity of illumination 3000~ 4000Lux, photoperiod illumination 14h：Dark 10h, incubation time is 6~8d, by CaCl2、MgCl2Launched every 3h and arrive nutrient solution In；
    C. nutrient solution is filtered, takes out filtrate.
  4. 4. the method for the water hardness is reduced according to claim 1, it is characterised in that the step（3）Middle flocculant is alum, Aluminum sulfate, aluminium chloride any one, the dosage of flocculant is the 3%~5% of water, stands 10~15min.
  5. 5. the method for the water hardness is reduced according to claim 1, it is characterised in that the step（4）Middle filler is rotten Rock, activated carbon in mass ratio 5：2 put into pulverizer, cross 100 mesh sieves, obtain filler, the dosage of filler for water 5%~ 6%。
CN201710643912.4A 2017-07-31 2017-07-31 A kind of method for reducing the mine water hardness Pending CN107381943A (en)

Priority Applications (1)

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CN107381943A true CN107381943A (en) 2017-11-24

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103160494A (en) * 2013-02-01 2013-06-19 安徽农业大学 Chemical compound mutation method for improving chlorella photosynthetic efficiency
CN103396953A (en) * 2013-08-20 2013-11-20 甘肃富民生态农业科技有限公司 Batch feeding method for cultivating chlorella
CN105254130A (en) * 2015-11-06 2016-01-20 江苏东珠景观股份有限公司 Wetland sewage treatment system and method thereof
CN106277598A (en) * 2016-08-28 2017-01-04 潘纪鸿 The processing method of high salt height Organic substance industrial wastewater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103160494A (en) * 2013-02-01 2013-06-19 安徽农业大学 Chemical compound mutation method for improving chlorella photosynthetic efficiency
CN103396953A (en) * 2013-08-20 2013-11-20 甘肃富民生态农业科技有限公司 Batch feeding method for cultivating chlorella
CN105254130A (en) * 2015-11-06 2016-01-20 江苏东珠景观股份有限公司 Wetland sewage treatment system and method thereof
CN106277598A (en) * 2016-08-28 2017-01-04 潘纪鸿 The processing method of high salt height Organic substance industrial wastewater

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Address before: 213102 Hanjiang Road, Xinbei District, Changzhou, Jiangsu Province, No. 99

Applicant before: Changzhou city Bunuosai Electromechanical Technology Co Ltd

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