CN105439291B - A kind of biological method for removing underground water temporary hardness - Google Patents
A kind of biological method for removing underground water temporary hardness Download PDFInfo
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- CN105439291B CN105439291B CN201510809917.0A CN201510809917A CN105439291B CN 105439291 B CN105439291 B CN 105439291B CN 201510809917 A CN201510809917 A CN 201510809917A CN 105439291 B CN105439291 B CN 105439291B
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
Abstract
The invention discloses a kind of biological method for removing underground water temporary hardness, bacteria agent is obtained including the autotrophic bacteria in domestication underground water using bicarbonate as autotrophy source, bacteria agent is fixed on to the removal that bicarbonate in underground water is carried out on biofilter material by way of biofilm, the too high underground water fouling of temporary hardness is controlled by reducing bicarbonate；As Fe in underground water2+When concentration is less than 0.3mg/L, described biofilter material is haydite；As underground water Fe2+When concentration is higher than 0.3mg/L, described biofilter material is quartz sand.The present invention removes the biological method of underground water temporary hardness, bacterium source is used as by the use of the indigenous autotrophic bacteria in underground water, autotrophic bacteria carries out growth and breeding using bicarbonate, calcium ions and magnesium ions can not form calcium bicarbonate and magnesium bicarbonate when water body lacks bicarbonate, so as to remove underground water temporary hardness.
Description
Technical field
The invention belongs to water treatment field, and in particular to a kind of biological method for removing underground water temporary hardness.
Background technology
The current amount of groundwater mining in China accounts for the 30% of National urban total water consumption, and the town dweller of Drinking Water reaches
It is more than the people of l hundred million.Temporary hardness is carbonate hardness, is a part for total hardness, equivalent to heavy carbonate in water and a small amount of carbon
The hardness that calcium, the magnesium of hydrochlorate combination are formed.When boiling is boiled, calcium, the heavy carbonate of magnesium decompose generation precipitation so as to reduce water
Hardness, hardness that can be with the method boiled to remove, the part hardness is easier to remove, referred to as temporary hardness.Such as
Calcium and magnesium mainly exist in the form of sulfate, nitrate and chloride etc. in fruit hard water, as permanent hardness, and they can not be with boiling
The method of boiling removes.Underground water is the important water head site in China, and the underground water of high temporary hardness is that the comparison of current resident is more
Important water source.
China《Standards for drinking water quality》Regulation, the hardness standard of drinking water are 450mg/L (with CaCO3Meter).Very
The total hardness numerical value of more underground water between 300mg/L-450mg/L, though not less than required standard, due in temporary hardness
HCO3 -The presence of ion, cause standard compliant drinking water generally existing to occur a large amount of precipitations or floating object after boiling, form water
Dirt, fouling is serious in water heater, is not only difficult to receive on drinking water sense organ, and have many harm.Such as use water
Device fouling, soap cleaning agent efficiency are low, dry skin, clothes harden.As people are recognized quality of life requirement and health
Continuous improvement, seek it is a kind of run simple and reliable and economic underground water descalling technique be there is an urgent need to.
At present, the main several method of the sofening treatment of water：First, based on concentration product principle, some medicaments are added, water
Middle calcium, magnesium ion are transformed into insoluble compound and are allowed to Precipitation, and this method is referred to as medicament tenderizer or the precipitation softening of water
Method；Second, being based on ion exchange principle, carried out using calcium, magnesium ion in cation possessed by some ion-exchangers and water anti-
Answer, reach the ion exchange softening method of the purpose, referred to as water of softening；Electrodialysis principle is also based on, in addition, film tenderizer is in recent years
To be also increasingly being used to the sofening treatment of water.
Above-mentioned traditional sofening treatment, either construction investment and operating cost is higher, and capital construction and operational management are complicated,
For low developed area, implement this intermediate item and certain difficulty be present.For total hardness water that is not exceeded, and being formed by temporary hardness
Dirt is the subject matter that faces of supplying water, and problem does not protrude in conventional water supply, does not obtain enough attention, and existing research
It is rarely seen with the technical method for the treatment of groundwater fouling in application, seek to build and run simple and reliable underground water temporary hardness and go
The method removed, be currently there is an urgent need to technical method.
The content of the invention
The defects of for prior art or deficiency, present invention aims at provide a kind of life for handling underground water temporary hardness
Object space method, conventional art personnel are overturned by this method and have gone hardness in water removal to only focus on calcium ion or magnesium ion etc. in water removal
Idea, the present invention looks for another way, finds when water body lacks bicarbonate, calcium ions and magnesium ions can not be formed calcium bicarbonate and
Magnesium bicarbonate, so as to realize the purpose removed to temporary hardness in underground water.Not only greatly reduce cost, while removal effect
Good, processing time is fast.
To realize above-mentioned technical assignment, the technological means that the present invention takes is：
Using bicarbonate as autotrophy source in a kind of biological method for removing underground water temporary hardness, including domestication underground water
Autotrophic bacteria obtains bacteria agent, and bacteria agent is fixed on biofilter material by way of biofilm and carries out carbonic acid in underground water
The removal of hydrogen salt；
As Fe in underground water2+When concentration is less than 0.3mg/L, described biofilter material is haydite；
As Fe in underground water2+When concentration is more than or equal to 0.3mg/L, described biofilter material is quartz sand.
Specifically, the removal time that bicarbonate in underground water is carried out by biofilter material of haydite is 1~2 hour；With stone
Sand is that to carry out removal time of bicarbonate in underground water be 2~3 hours to biofilter material.
More specifically, the autotrophic bacteria in described domestication underground water using bicarbonate as autotrophy source includes：
Step 1：To treating that JGF1 enrichment culture liquid is added in treating groundwater to be cultivated, the sediment after culture is collected
Matter；
Step 2：JGF2 enrichment culture liquid cultures are added in the deposit obtained into step 1, successively will afterwards
JGF2 enrichment culture liquid replaces with fluid nutrient medium, 1 body of 1 volume JGF2 enrichment cultures liquid and 1 volume sterilizing underground water composition
The fluid nutrient medium and 1 volume JGF2 enrichment cultures liquid and 3 volumes of product JGF2 enrichment cultures liquid and 2 volumes sterilizing underground water composition
The fluid nutrient medium of sterilizing underground water composition is cultivated to obtain bacteria agent；
The formula of described JGF1 enrichment culture liquid is：
NaHCO3：2.0g
CaCl2：1.0g
NH4Cl：0.5g,
NaNO3：0.1g,
KH2PO4：0.3g,
FeSO4·7H2O：0.1g,
Distilled water：1000mL, pH are adjusted to 7.0；
The formula of JGF2 enrichment culture liquid is：
NaHCO3：0.5g,
CaCl2：1.0g
NH4Cl：0.1g,
NaNO3：0.05g,
KH2PO4：0.1g,
MgSO4·7H2O：0.01g,
Trace element solution：5ml,
Distilled water：1000mL, pH are adjusted to 7.5；
The trace element solution is：In terms of mass concentration, 0.5g/L CaCl2、0.5g/L EDTA、0.1g/L ZnSO4、
0.2g/L MnCl2·4H2O、0.2g/L FeSO4·7H2O、0.1g/LCuSO4·5H2O and 0.1g/LCoCl2·6H2O's is water-soluble
Liquid.
Again specifically, the volume ratio that treating groundwater and JGF1 enrichment culture liquid are treated in described step one is 2~3:1；
In described step two, the volume ratio of deposit and JGF2 enrichment culture liquid is 1:8~12.
Further, it is characterised in that the biofilm of bacteria agent is carried out using haydite as biofilter material to be included：
Hung with the fluid nutrient medium that 1 volume bacteria agent forms with 1 volume JGF2 enrichment culture liquid on haydite surface
Film.
Preferably, the particle diameter of described haydite is 5~10mm, and biofilm temperature is 25~30 DEG C, and the biofilm time is 7~10
My god.
Further, carrying out bacteria agent biofilm as biofilter material using quartz sand includes：
Carried out with the fluid nutrient medium that 1 volume bacteria agent and 1 volume JGF2 enrichment culture liquid form in quartz sand surface
Biofilm.
Preferably, the particle diameter of described quartz sand is 2~4mm, and biofilm temperature is 25~30 DEG C, and the biofilm time is 12~15
My god.
The reaction unit of the biological method of removal underground water temporary hardness described in realizing, including removal underground water are temporarily hard
Unit and secondary filter unit are spent, removing underground water temporary hardness unit includes the first filter column, and secondary filter unit includes second
Filter column；
First filter column sets gradually the first inhalant region, water removal temporary hardness area and the first bearing area from top to bottom, except underground
Water temporary hardness area is filled with the biofilter material for hanging up bacteria agent film；
Second filter column sets gradually the second inhalant region, filtering area and the second bearing area from top to bottom, is filled with filtering area
Quartz sand biofilter material.
Specifically, the height and internal diameter all same of the height of the first described filter column and the second filter column, and the first inhalant region
It is identical with the height of the second inhalant region, except underground water temporary hardness area is identical with the height of filtering area, the first bearing area and second
The height of bearing area is identical；
The internal diameter of first filter column is 0.5~1.0m, and the height of the first inhalant region is 0.4~0.6m, except underground water is temporarily hard
The height for spending area is 3~6m, and the height of the first bearing area is 0.2~0.5m.
Compared with prior art, it is of the invention that advantage is：
(1) present invention remove underground water temporary hardness biological method, by the use of the indigenous autotrophic bacteria in underground water as
Bacterium source, autotrophic bacteria carry out growth and breeding using bicarbonate, so as to which the bicarbonate in body of groundwater be removed；
(2) biological method of processing underground water temporary hardness of the invention has been overturned conventional art personnel and removed in underground water
Hardness only focuses on the idea of calcium ion or magnesium ion etc. in water removal, and the present invention looks for another way, and enters from bicarbonate radical in water removal is removed
Hand realizes the purpose removed to temporary hardness in water, not only greatly reduces cost, while removal effect is good, and processing time is fast；
(3) by adding NaHCO into water body3And CaCl2, bacterium is adapted to high Ca2+Environment, HCO can be utilized3 -It is thin
The breeding of bacterium raised growth obtains biological agent, and bacteria agent is fixed on into biofilter material by way of biofilm, utilizes biological filter
Material establishes second order reaction device, wherein the first stage arrangement main function is to remove water body temporary hardness, the second stage arrangement removes water
Body temporary hardness has the effect for the biomembrane that retention comes off concurrently, and there is simple to operate, management convenience, its operating cost to be less than other
Conventional handling process.
Brief description of the drawings
Fig. 1 is the structural representation of the reactor in the present invention；
Each label is expressed as in Fig. 1：A- removes underground water temporary hardness unit, 1- the first water body parameter measurements site, 2-
First water pump, the tanks of 3- first, the filter columns of 4- first, the inhalant regions of 41- first, 42- remove underground water temporary hardness area, 43- first is held
Hold in the palm area；B- secondary filters unit, 5- the second water body parameter measurements site, the tanks of 6- second, the water pumps of 7- second, the filter columns of 8- second,
The inhalant regions of 81- second, 82- filtering areas, the bearing areas of 83- second；
Fig. 2 is to remove temporary hardness design sketch in water removal in embodiment one by biofilter material of quartz sand；
Fig. 3 is to remove ferrous iron design sketch in water removal in embodiment one by biofilter material of quartz sand；
Fig. 4 is that underground water boils effect contrast figure before and after the processing in embodiment one；
Fig. 5 is to remove temporary hardness design sketch in embodiment two by biofilter material of haydite；
Fig. 6 is that underground water boils effect contrast figure before and after the processing in embodiment two；
The present invention is illustrated below in conjunction with specification drawings and specific embodiments.
Embodiment
The reason for underground water produces precipitation after boiling is that bicarbonate radical therein is thermally decomposed, generation carbonate, titanium dioxide
Carbon and water, the carbonate of generation can be combined with the calcium ions and magnesium ions in water, generate calcium carbonate and carbonic acid magnesium precipitate, heavy so as to result in
The generation in shallow lake.
2HCO3 -→CO3 2-+CO2↑+H2O
CO3 2-+Ca2+→CaCO3↓
CO3 2-+Mg2+→MgCO3↓
Based on the problem present on, the processing method for being specifically applied to treating groundwater temporary hardness has been invented, has been utilized
Indigenous autotrophic bacteria in underground water carries out growth and breeding as bacterium source, autotrophic bacteria using bicarbonate, so as to by water body
Bicarbonate removes.Following technical solution is taken in invention：
It is prepared by step 1, bacteria agent：Take and treat 2L in treating groundwater, JGF1 enrichment culture liquid is added into water, it is closed
25 DEG C are cultivated 7 days, with 8000 revs/min of centrifuge, are centrifuged 5 minutes, are collected deposit.It is rich that JGF2 is added into deposit
Collect nutrient solution, 25 DEG C are cultivated 7 days, are changed a liquid medium within every 7 days afterwards, are changed order and be followed successively by：1 volume JGF2 is enriched with
The fluid nutrient medium of nutrient solution and 1 volume sterilizing underground water composition, 1 volume JGF2 enrichment cultures liquid and 2 volumes sterilizing underground water
Fluid nutrient medium, the sterilizing ground of the fluid nutrient medium of composition, 1 volume JGF2 enrichment cultures liquid and 3 volumes sterilizing underground water composition
The fluid nutrient medium of lower water composition.
The formula of JGF1 nutrient solutions described in step 1 is：
NaHCO3：2.0g
CaCl2：1.0g
NH4Cl：0.5g,
NaNO3：0.1g,
KH2PO4：0.3g,
FeSO4·7H2O：0.1g,
Distilled water：1000mL, pH are adjusted to 7.0.
The formula of JGF2 nutrient solutions is：
NaHCO3：0.5g,
CaCl2：1.0g
NH4Cl：0.1g,
NaNO3：0.05g,
KH2PO4：0.1g,
MgSO4·7H2O：0.01g,
Trace element solution：5ml,
Distilled water：1000mL, pH are adjusted to 7.5.
The trace element solution is：In terms of mass concentration, 0.5g/L CaCl2、0.5g/L EDTA、0.1g/L ZnSO4、
0.2g/L MnCl2·4H2O、0.2g/L FeSO4·7H2O、0.1g/LCuSO4·5H2O、0.1g/LCoCl2·6H2O's is water-soluble
Liquid.
The volume ratio that treating groundwater and JGF1 enrichment culture liquid are treated in step 1 is 2:1；In described step two, precipitation
The volume ratio of material and JGF2 enrichment culture liquid is 1:10.
Step 2：The preparation of biological ceramic particle：Haydite using particle diameter as 5~10mm is used as filtrate, the bacterium of 1 volume acclimating
The fluid nutrient medium of liquid and 1 volume JGF2 enrichment cultures liquid composition carries out biofilm, 25~30 DEG C of biofilms 7~10 days, haydite surface
Show that biofilm terminates after forming light yellow biomembrane, the bacterium of the absorption of filter material surface is washed out using solid stream of water.
The preparation of biological quartz sand：Be 2~4mm quartz sand as filtrate using particle diameter, the bacterium solution of 1 volume acclimating with
The fluid nutrient medium of 1 volume JGF2 enrichment cultures liquid composition carries out biofilm, 25~30 DEG C of biofilms 12~15 days, quartz sand surface shape
Show that biofilm terminates after into light yellow biomembrane, the bacterium of the absorption of filter material surface is washed out using solid stream of water.
Step 3：Load filtrate：First filter column kind height of filter media layer is 3~6m, and support layer height is 0.2~0.5m, interior
Footpath is 0.5~1.0m, superelevation 0.5m；From top to bottom add the biofilter material and supporting layer of dress biofilm successively into filter column, work as underground
Water Fe2+When concentration is less than 0.3mg/L, the first filter column is used as processing system filtrate using haydite.As underground water Fe2+Concentration is higher than
During 0.3mg/L, the first filter column is used as processing system filtrate using quartz sand.Second filter column adds the stone for not carrying out bio-film colonization all the time
Sand is as processing system filtrate.It is 1~2mm quartz sand as filtrate that the quartz sand of bio-film colonization is not carried out using particle diameter, is held
Layer is ask to use 10~20mm of particle diameter cobblestone.
Step 4：Plant running：Underground water is entered above the first filter column, biological ceramic particle device hydraulic detention time is
1~2 hour, biological quartz sand device hydraulic detention time was 2~3 hours, and the second filter column hydraulic detention time is 0.5~2 small
When.
First filter column was once backwashed every 10~15 days, and the second filter column was once backwashed every 1~3 day.
First filter column back washing strength is 6-10L/sm2, backwashing time is 1~3min.Second filter column back washing strength be 12~
15L/s·m2, backwashing time is 3~5min, and the backwash water outlet of the first filter column is drained through valve overflow, the second filter column it is anti-
Water outlet is rinsed through valve overflow to drain.
It is the specific embodiment that inventor provides below, it is necessary to which explanation, the present invention are not limited to following embodiments, institute
It is that the present invention is further explained to embodiment.
Embodiment 1：
With reference to Fig. 1, the reaction unit of the biological method of the removal underground water temporary hardness of the present embodiment, including go water removal temporary
When hardness unit A and secondary filter unit B, going to remove water temporary hardness unit A includes the first filter column 4, the first water body parameter measurement
Site 1, the first water pump 2 and the first tank 3, secondary filter unit B include the second filter column 8, the second water body parameter measurement site 5,
Second tank 6 and the second water pump 7；
First water body parameter measurement site 1 can measure the temperature and pH value of current in the first tank 3, pass through the first water pump
2 will be removed water hardness processing in the current regulated the first filter column 4 of inflow；Second water body parameter measurement site 5 can be surveyed
The temperature and pH value of current in the tank 6 of flow control two, the current regulated are flowed into the second filter column 8 by the second water pump 7 and carried out
The secondary filter of water, the biomembrane fragment flowed out with water body is retained after removal temporary hardness, while for a long time after retention
The bioclastic left carries out the secondary removal water hardness to current again；
First filter column 4 sets gradually the first inhalant region 41, water removal temporary hardness area 42 and the first bearing area 43 from top to bottom,
Water removal temporary hardness area 42 is filled with the biofilter material for hanging up bacteria agent film；
Second filter column 8 sets gradually the second inhalant region 81, the bearing area 83 of filtering area 82 and second, filtering area 82 from top to bottom
Inside it is filled with quartz sand biofilter material；
The height and internal diameter all same of the height of first filter column 4 and the second filter column 8, and the first inhalant region 41 and the second water inlet
The height in area 81 is identical, and water removal temporary hardness area 42 is identical with the height of filtering area 82, the first bearing area 43 and the second bearing area
83 height is identical；The internal diameter of first filter column 4 is 0.5~1.0m, and the height of the first inhalant region 41 is 0.4~0.6m, and water removal is temporary
When stiffness region 42 height be 3~6m, the height of the first bearing area 43 is 0.2~0.5m.
Embodiment 2：
Underground water to be administered comes from Xi'an City, Shanxi Province somewhere underground water in the embodiment.Reaction unit is embodiment
Device in 1, what the first filter column was added is the quartz sand biofilter material of bacteria agent biofilm, and the addition of the second filter column is non-biofilm
Quartz sand biofilter material；
First filter column reaction unit hydraulic detention time 3 hours, the second filter column reaction unit hydraulic detention time 1.0 are small
When, pending underground water carries out secondary filtration after the processing of the first filter column, into the second filter column.
From Fig. 2~4 as can be seen that water outlet temporary hardness is always 0, temporary hardness has obtained effective removal.Water outlet two
Valency iron ion maintains a relatively low level, below 0.3mg/L.The reaction unit is shown for removing temporary hardness
And remove the good result of ferrous ion.
Embodiment 3：
Underground water to be administered comes from Shaanxi Province Pucheng County in the embodiment.Reaction unit is the device in embodiment 1,
The ceramic aggregate biological filtrate of bacteria agent biofilm is added in first filter column, what the second filter column was added is the quartz sand biological filter of non-biofilm
Material.
First filter column reaction unit hydraulic detention time 2 hours, the second filter column reaction unit hydraulic detention time 1.0 are small
When, pending underground water carries out secondary filtration after the processing of the first filter column, into the second filter column.
From Fig. 5~6 as can be seen that water outlet temporary hardness is obtained for effective removal, water outlet temporary hardness is always 0.
Claims (9)
1. a kind of biological method for removing underground water temporary hardness, it is characterised in that including taming in underground water with bicarbonate
Autotrophic bacteria for autotrophy source obtains bacteria agent, and bacteria agent is fixed on biofilter material by way of biofilm and carries out ground
The removal of bicarbonate in lower water；
As Fe in underground water2+When concentration is less than 0.3mg/L, described biofilter material is haydite；
As Fe in underground water2+When concentration is more than or equal to 0.3mg/L, described biofilter material is quartz sand；
Autotrophic bacteria in described domestication underground water using bicarbonate as autotrophy source includes：
Step 1：To treating that JGF1 enrichment culture liquid is added in treating groundwater to be cultivated, the deposit after culture is collected；
Step 2：JGF2 enrichment culture liquid cultures are added in the deposit obtained into step 1, it is successively that JGF2 is rich afterwards
Collection nutrient solution replaces with fluid nutrient medium, the 1 volume JGF2 of 1 volume JGF2 enrichment cultures liquid and 1 volume sterilizing underground water composition
The fluid nutrient medium and 1 volume JGF2 enrichment cultures liquid and 3 volumes sterilizing ground of enrichment culture liquid and 2 volumes sterilizing underground water composition
The fluid nutrient medium of lower water composition is cultivated to obtain bacteria agent；
The formula of described JGF1 enrichment culture liquid is：
NaHCO3：2.0g
CaCl2：1.0g
NH4Cl：0.5g,
NaNO3：0.1g,
KH2PO4：0.3g,
FeSO4·7H2O：0.1g,
Distilled water：1000mL, pH are adjusted to 7.0；
The formula of JGF2 enrichment culture liquid is：
NaHCO3：0.5g,
CaCl2：1.0g
NH4Cl：0.1g,
NaNO3：0.05g,
KH2PO4：0.1g,
MgSO4·7H2O：0.01g,
Trace element solution：5ml,
Distilled water：1000mL, pH are adjusted to 7.5；
The trace element solution is：In terms of mass concentration, 0.5g/L CaCl2、0.5g/L EDTA、0.1g/L ZnSO4、
0.2g/L MnCl2·4H2O、0.2g/L FeSO4·7H2O、0.1g/LCuSO4·5H2O and 0.1g/LCoCl2·6H2O's is water-soluble
Liquid.
2. the biological method of underground water temporary hardness is removed as claimed in claim 1, it is characterised in that using haydite as biological filter
The removal time that material carries out bicarbonate in underground water is 1~2 hour；Carbonic acid in underground water is carried out by biofilter material of quartz sand
The removal time of hydrogen salt is 2~3 hours.
3. the biological method of underground water temporary hardness is removed as claimed in claim 1, it is characterised in that in described step one
The volume ratio for treating treating groundwater and JGF1 enrichment culture liquid is 2~3:1；In described step two, deposit is rich with JGF2
The volume ratio for collecting nutrient solution is 1:8~12.
4. the biological method of underground water temporary hardness is removed as claimed in claim 1 or 2, it is characterised in that made a living with haydite
The biofilm that thing filtrate carries out bacteria agent includes：
Biofilm is carried out on haydite surface with the fluid nutrient medium that 1 volume bacteria agent and 1 volume JGF2 enrichment culture liquid form.
5. the biological method of underground water temporary hardness is removed as claimed in claim 4, it is characterised in that the grain of described haydite
Footpath is 5~10mm, and biofilm temperature is 25~30 DEG C, and the biofilm time is 7~10 days.
6. as claimed in claim 1 or 2 remove underground water temporary hardness biological method, it is characterised in that using quartz sand as
Biofilter material, which carries out bacteria agent biofilm, to be included：
Biofilm is carried out in quartz sand surface with the fluid nutrient medium that 1 volume bacteria agent and 1 volume JGF2 enrichment culture liquid form.
7. the biological method of underground water temporary hardness is removed as claimed in claim 6, it is characterised in that described quartz sand
Particle diameter is 2~4mm, and biofilm temperature is 25~30 DEG C, and the biofilm time is 12~15 days.
8. the reaction unit of the biological method of the removal underground water temporary hardness described in claim 1,2,3,4,5,6 or 7 is realized,
It is characterised in that it includes removing underground water temporary hardness unit and secondary filter unit, underground water temporary hardness unit bag is removed
The first filter column is included, secondary filter unit includes the second filter column；
First filter column sets gradually the first inhalant region, except underground water temporary hardness area and the first bearing area from top to bottom, except underground
Water temporary hardness area is filled with the biofilter material for hanging up bacteria agent film；
Second filter column sets gradually the second inhalant region, filtering area and the second bearing area from top to bottom, and quartz is filled with filtering area
Sand biofilter material.
9. reaction unit as claimed in claim 8, it is characterised in that the height of the first described filter column and the height of the second filter column
Degree and internal diameter all same, and the first inhalant region is identical with the height of the second inhalant region, removes water the height of temporary hardness area and filtering area
Spend identical, the first bearing area is identical with the height of the second bearing area；
The internal diameter of first filter column is 0.5~1.0m, and the height of the first inhalant region is 0.4~0.6m, the height in water removal temporary hardness area
Spend for 3~6m, the height of the first bearing area is 0.2~0.5m.
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| DE102007003410A1 (en) * | 2007-01-23 | 2008-07-31 | Produktions- Und Umweltservice Gmbh | Filter cartridge, useful in removing heavy metals and hardness-producing substances and suspended material, is produced from chemically-modified natural fibers and optionally natural fibers using normal textile method |
| CN102849834A (en) * | 2012-10-15 | 2013-01-02 | 华东理工大学 | Chemical reaction-precipitation integrated treatment method and chemical reaction-precipitation integrated treatment device |
| CN103708605A (en) * | 2013-12-12 | 2014-04-09 | 青岛思普润水处理有限公司 | Method based on MBBR for removing ammonia nitrogen from high hardness wastewater |
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2015
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007003410A1 (en) * | 2007-01-23 | 2008-07-31 | Produktions- Und Umweltservice Gmbh | Filter cartridge, useful in removing heavy metals and hardness-producing substances and suspended material, is produced from chemically-modified natural fibers and optionally natural fibers using normal textile method |
| CN102849834A (en) * | 2012-10-15 | 2013-01-02 | 华东理工大学 | Chemical reaction-precipitation integrated treatment method and chemical reaction-precipitation integrated treatment device |
| CN103708605A (en) * | 2013-12-12 | 2014-04-09 | 青岛思普润水处理有限公司 | Method based on MBBR for removing ammonia nitrogen from high hardness wastewater |
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