CN105967442B - The method and well design method in situ of iron, manganese and ammonia nitrogen in removal underground water in situ - Google Patents
The method and well design method in situ of iron, manganese and ammonia nitrogen in removal underground water in situ Download PDFInfo
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- CN105967442B CN105967442B CN201610388821.6A CN201610388821A CN105967442B CN 105967442 B CN105967442 B CN 105967442B CN 201610388821 A CN201610388821 A CN 201610388821A CN 105967442 B CN105967442 B CN 105967442B
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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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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/06—Methods or installations for obtaining or collecting drinking water or tap water from underground
- E03B3/08—Obtaining and confining water by means of wells
- E03B3/16—Component parts of wells
- E03B3/18—Well filters
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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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
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
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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
- C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
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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
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/203—Iron or iron compound
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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
- C02F2101/206—Manganese or manganese 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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
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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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Abstract
The present invention provides a kind of method and well design method in situ in situ for removing iron in underground water, manganese and ammonia nitrogen, iron, manganese and the ammonia nitrogen in underground water can be removed in situ, it is not necessary that underground water extraction earth's surface is carried out dystopy processing.The method of iron, manganese and ammonia nitrogen includes: that the underground water in water-bearing layer flows into well in situ located underground in the removal underground water in situ；In the well in situ, successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ；Whether the underground water after judging removal iron, manganese and ammonia nitrogen meets preset water quality indicator, if meeting preset water quality indicator, by water reserve of the ground water reserve in the well in situ.The present invention is suitable for ground water cleaning technical field.
Description
Technical field
The present invention relates to ground water cleaning technical field, iron, manganese and ammonia nitrogen in a kind of removal underground water in situ are particularly related to
Method and well design method in situ.
Background technique
In recent years, by the Northeast, China ground water chemistry characteristic analysis it is found that China, villages and small towns, northeast drinking water water
There are iron (for example, Fe in source2+), manganese is (for example, Mn2+) and ammonia nitrogen (for example, NH4+- N) the exceeded phenomenon of content.By studies have shown that
Fe2+、Mn2+It can be removed with same layer；But when containing NH in water4+When-N, due to the difference of oxidation-reduction potential, Mn2+Biology
Oxidation can only occur in NH4+It, can be to Mn after the complete nitrification of-N2+Biological removal have a direct impact, still, work as ammonia
Nitrogen content is in 2mg/L or less, for Mn2+Biological removal do not influence.In addition, there are also studies have shown that using same layer
In the case that filtrate removes demanganization and ammonia nitrogen, the oxidation of manganese and ammonia nitrogen is carried out in 2/3 part of filtering layer lower part, further
Demonstrate Mn2+With NH4+- N can same layer removal idea.
In the prior art, iron, manganese and the ammonia nitrogen in " weak aeration+ferrimanganic biofilter " removal underground water can be used, it is " weak
Aeration+ferrimanganic biofilter " is progress dystopy processing after extracting underground water out, suitable for fairly large centralized water supply,
And disperse the area of small-sized water supply for rural area underdeveloped, dystopy removes the method for iron, manganese and ammonia nitrogen in underground water also
It is unsuitable for promoting.
Summary of the invention
The technical problem to be solved in the present invention is to provide the methods and original of iron, manganese and ammonia nitrogen in a kind of removal underground water in situ
Position well design method, to solve the problems, such as that iron, manganese and ammonia nitrogen technology are not suitable for samll cities and towns in existing dystopy removal underground water.
In order to solve the above technical problems, the embodiment of the present invention provides iron in a kind of removal underground water in situ, manganese and ammonia nitrogen
Method, comprising:
Underground water in water-bearing layer flows into well in situ located underground；
In the well in situ, successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ；
Whether the underground water after judging removal iron, manganese and ammonia nitrogen meets preset water quality indicator, if meeting preset water quality
Index, the then water reserve by the ground water reserve in the well in situ.
Further, before being flowed into the underground water in the water-bearing layer in well in situ located underground, further includes:
Determine the inner wall radius of original position well and the depth of well in situ.
Further, before being flowed into the underground water in the water-bearing layer in well in situ located underground, further includes:
Determine the filling depth of filter in the well borehole wall of original position.
Further, the successively removal flow into iron, manganese and ammonia nitrogen in the underground water in the well in situ it
Before, further includes:
Iron filtrate, demanganization filtrate will be removed, except ammonia nitrogen filtrate is fitted into the well in situ；
It is described in the well in situ, successively removal flows into iron, manganese and the ammonia in the underground water in the well in situ
Nitrogen, comprising:
Air Exposure is carried out to the underground water flowed into the well in situ；
Catalytic oxidation is successively carried out to the underground water after Air Exposure except iron, contact autocatalyzed oxidation joint microorganism remove
Manganese, microorganism nitration for removing ammonia nitrogen.
Further, the underground water to after Air Exposure carries out catalytic oxidation and removes iron, comprising:
The ferrous ion in underground water after adsorbing Air Exposure by the irony active filter film except iron filter material surface, is inhaled
Attached ferrous ion is oxidized removal under the catalytic action of the irony active filter film.
Further, the underground water to after Air Exposure carries out contact autocatalyzed oxidation joint microorganism demanganization, packet
It includes:
Coated With Manganese Oxide material is prepared on scheduled solid particulate matter as demanganization filtrate, is inhaled by the demanganization filtrate
The Mn in underground water after attached Air Exposure2+, the Mn that is adsorbed2+It is oxidized to MnO2, and it is deposited on the table of the demanganization filtrate
Face；
By load of microorganisms, breeds microorganism constantly and be attached to the demanganization filter material surface, to remove underground water
In manganese；
It is deposited on the MnO of the demanganization filter material surface2One layer is formed with the microorganism for being attached to the demanganization filter material surface
Manganese matter active filter film.
Further, comprising:
Will except iron filtrate, demanganization filtrate, recoil the backwashing wastewater that is washed till in well in situ except the sediment in ammonia nitrogen filtrate
Drainage area；
Waste water in backwashing wastewater drainage area is discharged by the backwashing wastewater draining pump in well in situ.
The embodiment of the present invention also provides a kind of well design method in situ in situ for removing iron, manganese and ammonia nitrogen in underground water,
It is characterized in that, the original position well is located underground, and the original position well design method includes:
Determine the filter module of purification of ground water；
It determines and removes iron, manganese and ammonia nitrogen module and judgment module；
Wherein, described to remove iron, manganese and ammonia nitrogen module, it is flowed into the well in situ for receiving by the filter module
Underground water, and successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ；
The judgment module, for judging whether the underground water after removal iron, manganese and ammonia nitrogen meets preset water quality indicator,
If meeting preset water quality indicator, by water reserve of the ground water reserve in the well in situ.
Further, the well design method in situ further include: determine water inlet aeration module；
Wherein, the water inlet is aerated module, for carrying out Air Exposure to the underground water flowed into the well in situ；
It is described to remove iron, manganese and ammonia nitrogen module, it is removed specifically for successively carrying out catalytic oxidation to the underground water after Air Exposure
Microorganism demanganization, microorganism nitration for removing ammonia nitrogen are combined in iron, contact autocatalyzed oxidation.
Further, the well design method in situ further include:
Determine backwash module and backwashing wastewater drain module；
Wherein, the backwash module: for iron filtrate, demanganization filtrate will to be removed, except the sediment recoil in ammonia nitrogen filtrate
It is washed till the backwashing wastewater drainage area in well in situ；
The backwashing wastewater drain module, for passing through the backwashing wastewater draining pump in well in situ for backwashing wastewater
Waste water discharge in drainage area.
The advantageous effects of the above technical solutions of the present invention are as follows:
In above scheme, the underground water in water-bearing layer flows into well in situ located underground in its natural state, in the original
In the well of position, iron, manganese and ammonia nitrogen in the underground water are successively removed, and the underground of predetermined quality index will be finally reached after purification
Water is stored in the water reserve in the well in situ, and the water in water reserve can be extracted out directly to be used for resident.In this way, being not necessarily to ground
It is lauched extraction earth's surface and carries out dystopy processing, occupied area can be effectively reduced while reducing Surface structure and Insulation etc.
Capital consumption is suitble to the lower samll cities and towns of water consumption.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for iron, manganese and ammonia nitrogen in removal underground water in situ provided in an embodiment of the present invention；
Fig. 2 is underground water iron provided in an embodiment of the present invention, manganese and ammonia nitrogen removal technical module flow diagram one in situ；
Fig. 3 is underground water iron provided in an embodiment of the present invention, manganese and ammonia nitrogen removal technical module flow diagram in situ
Structural schematic diagram two；
Fig. 4 is well front schematic view in situ provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of cross section of the well in situ provided in an embodiment of the present invention at ground；
Fig. 6 is the cross-sectional view of the starting point of original position Jing Zhishuiqu provided in an embodiment of the present invention；
Fig. 7 is the cross-sectional view of well backwashing wastewater in situ drainage area provided in an embodiment of the present invention；
Fig. 8 is the original position area Jing Chutie, demanganization area and the cross-sectional view except ammonia nitrogen area provided in an embodiment of the present invention；
Fig. 9 is the cross-sectional view that well in situ provided in an embodiment of the present invention backwashes area；
Figure 10 is the cross-sectional view of well in situ water reserve provided in an embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention is not suitable for asking for samll cities and towns for the method for iron, manganese and ammonia nitrogen in existing dystopy removal underground water
Topic provides a kind of method and well design method in situ in situ for removing iron in underground water, manganese and ammonia nitrogen.
Embodiment one
Referring to shown in Fig. 1, the method for iron, manganese and ammonia nitrogen in a kind of removal underground water in situ provided in an embodiment of the present invention,
Include:
Step 101: the underground water in water-bearing layer flows into well in situ located underground；
Step 102: in the well in situ, successively removal flows into iron, manganese in the underground water in the well in situ
And ammonia nitrogen；
Step 103: whether the underground water after judging removal iron, manganese and ammonia nitrogen meets preset water quality indicator, if meeting pre-
If water quality indicator, then the water reserve by the ground water reserve in the well in situ.
The method that original position described in the embodiment of the present invention removes iron, manganese and ammonia nitrogen in underground water, the underground water in water-bearing layer
Well in situ located underground is flowed into its natural state, and in the well in situ, iron, manganese and ammonia nitrogen in underground water are successively gone
It removes, will finally reach the water reserve of the ground water reserve of predetermined quality index in the well in situ after purification, in water reserve
Water can be extracted out directly to be used for resident.In this way, can effectively reduce and account for it is not necessary that underground water extraction earth's surface is carried out dystopy processing
Ground area reduces the capital consumptions such as Surface structure and Insulation simultaneously, is suitble to the lower samll cities and towns of water consumption.
In the embodiment of the present invention, when the underground water after removal iron, manganese and ammonia nitrogen is unsatisfactory for preset water quality indicator, need pair
The underground water executes the removal step of iron, manganese and ammonia nitrogen again, ensures the safety of samll cities and towns local resident Drinking Water.
In the embodiment of the present invention, preset water quality indicator include: total iron content index in water quality, total manganese content index and
Ammonia nitrogen, nitrite nitrogen, nitrate nitrogen content index.
In the embodiment of the present invention, in order to remove the iron in underground water, manganese and ammonia nitrogen, ground as shown in Figures 2 and 3 has been formulated
It is lauched iron, manganese and ammonia nitrogen removal technical module process in situ, the technical module includes: water inlet module A, processing module B, water outlet
Module C；Wherein, the water inlet module A includes: into well modules A 1 and water inlet gas explosion modules A 2；It is described at well modules A 1 include: beat
Well modules A 1-1 and filter module A1-2；The processing module B includes: except swage block B1, demanganization module B2, except ammonia nitrogen module
B3.The water outlet module C includes: water purification water module C1.
Further, each technical module is described in detail.
In aforementioned removal underground water in situ in the specific embodiment of the method for iron, manganese and ammonia nitrogen, further, in institute
It states before the underground water in water-bearing layer flows into well in situ located underground, further includes:
Determine the inner wall radius of original position well and the depth of well in situ.
In the embodiment of the present invention, under normal circumstances, below ground a distance is phreatic surface, therefore, in situ in design
, can be based on well technique in situ when well, and water yield/water supply requirement of well in situ is combined, the modules A 1-1 that digs a well can be passed through
Determine the inner wall radius of more economical well in situ and the depth of well in situ.
As shown in figure 4, R1 indicates the inner wall radius of well in situ.
In aforementioned removal underground water in situ in the specific embodiment of the method for iron, manganese and ammonia nitrogen, further, in institute
It states before the underground water in water-bearing layer flows into well in situ located underground, further includes:
Determine the filling depth of filter in the well borehole wall of original position.
In the embodiment of the present invention, as shown in figure 4, the borehole wall of well in situ is needed filled with filter during normal Cheng Jing
Material is as inhalant region (I-I ' to II-II ' in Fig. 4) filter, the filter, for enhancing the water penetration of the well in situ
And preventing silt from entering in the well in situ, the R3 in Fig. 4 indicates well outer radius in situ.
, can be based on well technique in situ in the embodiment of the present invention, and the water yield requirement of well in situ is combined, pass through filter
Modules A 1-2 determines that more economical filter loads depth.
In aforementioned removal underground water in situ in the specific embodiment of the method for iron, manganese and ammonia nitrogen, further, in institute
Successively removal is stated to flow into before the iron in the underground water in the well in situ, manganese and ammonia nitrogen, further includes:
Iron filtrate, demanganization filtrate will be removed, except ammonia nitrogen filtrate is fitted into the well in situ.
It is described to remove iron filtrate, demanganization filtrate, except the filling mode of ammonia nitrogen filtrate includes: integrally to fill out in the embodiment of the present invention
Dress or pouch packing.By taking pouch dispenses as an example, divide after pouch being distributed into except iron filtrate, demanganization filtrate, except ammonia nitrogen filtrate
Zhuan Ru except iron area, demanganization area, remove ammonia nitrogen area, when there are quality problems in filtrate can splitting removal, it is more convenient.
It is described in the well in situ, successively removal flows into iron, manganese and the ammonia in the underground water in the well in situ
Nitrogen, comprising:
Air Exposure is carried out to the underground water flowed into the well in situ；
Catalytic oxidation is successively carried out to the underground water after Air Exposure except iron, contact autocatalyzed oxidation joint microorganism remove
Manganese, microorganism nitration for removing ammonia nitrogen.
In the embodiment of the present invention, as shown in figure 4, the underground water of iron content, manganese, ammonia nitrogen is from the well in situ of inflow in water-bearing layer
Inhalant region (I-I ' to II-II ' in Fig. 4) after flowing into well in situ, can be first passed through into water aeration modules A 2 in aeration zone convection current
Enter the underground water in well in situ and carry out first Air Exposure, then by removing iron except iron area carries out catalytic oxidation except swage block B1；
Then, recycle demanganization module B2 and except ammonia nitrogen module B3 demanganization area, except ammonia nitrogen area carry out contact autocatalyzed oxidation joint it is micro-
Biological demanganization and microorganism nitration for removing ammonia nitrogen；Finally, the underground water after removal iron, manganese and ammonia nitrogen stores the water storage in well in situ
Water in water reserve can also be evacuated in water tank for resident's use by area by water pump.
In the embodiment of the present invention, the I-I ' to II-II ' in Fig. 4 indicates inhalant region, and II-II ' to III-III ' indicates that water inlet exposes
Gas area, III-III ' to IV-IV ' indicates backwashing wastewater drainage area, and IV-IV ' to V-V ' indicates except iron area, demanganization area and remove ammonia
Nitrogen area, V-V ' to VI-VI ' indicates backwash area, and VI-VI ' indicates water reserve down；Wherein, II-II ' indicate well in situ into
Pool terminates, and initially enters sealing area.Sealing expression completely encloses the well borehole wall in situ, has prevented underground water from passing through the borehole wall
Into in well in situ.Fig. 5 to Figure 10 indicates the cross-sectional view of well different zones in situ.
As shown in figure 4, R2 is indicated except iron area, demanganization area, except the radius of ammonia nitrogen area filtrate fill area, it is basic consistent with R1,
But since centre has a water pump to be set as R2 so to subtract the radius of the water pump.
In the embodiment of the present invention, the removal of iron, manganese and ammonia nitrogen needs enough oxygen, and the water inlet is aerated modules A 2, is used for
It determines aeration quantity (it is, the amount of oxygen is provided) and aeration pump, while the underground water flowed into the well in situ is exposed
Gas disposal, so that the underground water after Air Exposure is with sufficient dissolved oxygen.
In the embodiment of the present invention, the water purification water module C1 is for the purpose of guaranteeing water yield, for determining taking for water body
Water flow, flow velocity and water pump；Specifically, will be by removing swage block B1, demanganization module B2 and except treated by ammonia nitrogen module B3
The ground water reserve water reserve in well in situ, can carry out water intaking use by water pump, can continuously take under normal circumstances
Water, water are in dynamic equilibrium state.
In the embodiment of the present invention, by except iron area is except iron filtering layer, the demanganization filtering layer in demanganization area and except ammonia nitrogen area
Except ammonia nitrogen filtering layer under different filtering velocitys to iron, manganese, ammonia nitrogen removal dynamics research, can determine under a default filtering velocity
The thickness X of different filtering layers, Y, Z, to be removed while realizing iron, manganese and ammonia nitrogen while meeting water supply flow.
In the embodiment of the present invention, water-stop sheet is placed in the determining boundary except three iron, manganese and ammonia nitrogen filtering layers, in order to
Each layer filtrate is backwashed.The filtrate used in each filtering layer can be filled into institute from well head in situ in a manner of pouch to dispense
It states in well in situ, it is ensured that the uniform filling in construction progress, while also convenience is provided for replacement filtrate in the future.
It is further, described in aforementioned removal underground water in situ in the specific embodiment of the method for iron, manganese and ammonia nitrogen
Catalytic oxidation is carried out to the underground water after Air Exposure and removes iron, comprising:
The ferrous ion in underground water after adsorbing Air Exposure by the irony active filter film except iron filter material surface, is inhaled
Attached ferrous ion is oxidized removal under the catalytic action of the irony active filter film.
In the embodiment of the present invention, except swage block B1 removes iron as principle, to meet water outlet water, water quality (always using catalytic oxidation
Iron content) it is target, preparation removes iron filtrate, and determines that this removes the Specifeca tion speeification of iron filtrate；Wherein, the main performance ginseng
Number includes: mechanical strength, permeability and except iron filter membrane is to the removal ability of iron.
It except what process played catalytic action in iron is except the irony of iron filter material surface is living in catalytic oxidation in the embodiment of the present invention
Property filter membrane.The irony active filter film adsorbs the ferrous ion in water first；The ferrous ion being adsorbed is in the irony active filter film
Catalytic action under be oxidized and make catalyst regeneration rapidly, reaction product is catalyst, and participates in new catalysis reaction.
It is further, described in aforementioned removal underground water in situ in the specific embodiment of the method for iron, manganese and ammonia nitrogen
Contact autocatalyzed oxidation joint microorganism demanganization is carried out to the underground water after Air Exposure, comprising:
Coated With Manganese Oxide material is prepared on scheduled solid particulate matter as demanganization filtrate, is inhaled by the demanganization filtrate
The Mn in underground water after attached Air Exposure2+, the Mn that is adsorbed2+It is oxidized to MnO2And it is deposited on the table of the demanganization filtrate
Face；
By load of microorganisms, breeds microorganism constantly and be attached to the demanganization filter material surface, to remove underground water
In manganese；
It is deposited on the MnO of the demanganization filter material surface2One layer is formed with the microorganism for being attached to the demanganization filter material surface
Manganese matter active filter film.
In the embodiment of the present invention, demanganization module B2 is to contact autocatalyzed oxidation joint microorganism demanganization as principle, to meet
Water, water quality (total manganese content) are discharged as target, prepares demanganization filtrate, and determine the Specifeca tion speeification of the demanganization filtrate；Its
In, the Specifeca tion speeification includes: the removal ability of mechanical strength, permeability and demanganization filter membrane to manganese.
In the embodiment of the present invention, during contacting autocatalyzed oxidation demanganization, the oxide (MnO of manganese2) going to remove water
Mn in body2+During play adsorbing-oxidising effect.But due to individually using manganese oxide powder as demanganization filtrate, in demanganization
Will receive in treatment process as solid/liquid separation is difficult, mass loss is big and due to powder own characteristic (such as undefined structure,
The factors such as hyposmosis coefficient) influence, seriously hinder its application in terms of demanganization.In order to solve this problem, Ke Yi
Coated With Manganese Oxide material is prepared on scheduled solid particulate matter as demanganization filtrate, and Air Exposure is adsorbed by the demanganization filtrate
The Mn in underground water afterwards2+, the Mn that is adsorbed2+It is oxidized to MnO2And it is deposited on the surface of the demanganization filtrate, wherein described
Solid particulate matter refers to the base material of selection, need to have preferable mechanical strength, infiltration coefficient with, higher porosity and
Specific surface area.
In the embodiment of the present invention, microorganism can also can be made constantly to breed and be attached to described remove by load of microorganisms
Manganese filter material surface, to remove the manganese in underground water, while the MnO being oxidized2It also is deposited upon the demanganization filter material surface, with micro- life
Object forms one layer of black film, as the manganese matter active filter film in contact autocatalyzed oxidation demanganization process, increases demanganization amount to reach
The purpose of time is used with demanganization filtrate.
In the embodiment of the present invention, except ammonia nitrogen module B3 with the microorganism nitrosation of ammonia nitrogen, nitrification for principle, with meet water outlet
Water, water quality (ammonia nitrogen, nitrite nitrogen, nitrate nitrogen content) are target, and preparation removes ammonia nitrogen filtrate, and determines this except ammonia nitrogen filtrate
Specifeca tion speeification, wherein the Specifeca tion speeification includes: mechanical strength, infiltration coefficient, porosity and specific surface area.
In the embodiment of the present invention, mainly pass through the ammonia nitrogen in the underground water after microbiological oxidation removal Air Exposure, the party
Not only removal effect is good for method, but also operating cost is low.
It is further, special in aforementioned removal underground water in situ in the specific embodiment of the method for iron, manganese and ammonia nitrogen
Sign is, comprising:
Will except iron filtrate, demanganization filtrate, recoil the backwashing wastewater that is washed till in well in situ except the sediment in ammonia nitrogen filtrate
Drainage area；
Waste water in backwashing wastewater drainage area is discharged by the backwashing wastewater draining pump in well in situ.
In the embodiment of the present invention, since iron, the manganese after oxidation have particle sediment after oxidation, after a certain time can
To except iron filtrate, demanganization filtrate, except the gap of ammonia nitrogen filtrate blocks, the generation of clogging in order to prevent also needs to design
The particle sediment is discharged for backwashing wastewater drainage area.Therefore, the water inlet module A further include: backwash modules A 3；Institute
State water outlet module C further include: backwashing wastewater drain module C2, as shown in Figures 2 and 3.
In the embodiment of the present invention, the backwash modules A 3 for determining backwash water, intensity and water pump, and passes through
Water inlet will be washed till original except iron filtrate, demanganization filtrate, except the sediment in ammonia nitrogen filtrate is recoiled by backwashing pump in well in situ
Backwashing wastewater drainage area in the well of position, to guarantee except iron filtrate, demanganization filtrate, except the permeability of ammonia nitrogen filtrate.
In the embodiment of the present invention, the backwashing wastewater drain module C2 is to guarantee that backwashing wastewater is smoothly discharged as mesh
, for the intensity and flow according to backwash modules A 3 treated backwashing wastewater, determine backwashing wastewater draining pump, and
The waste water in backwashing wastewater drainage area is discharged by the backwashing wastewater draining pump, wherein the waste water of all discharges passes through
Crossing natural sedimentation can reuse.
Embodiment two
The present invention also provides a kind of specific implementations of the well design method in situ of iron, manganese and ammonia nitrogen in removal underground water in situ
Mode, due to it is provided by the invention removal underground water in iron, manganese and ammonia nitrogen well design method in situ and aforementioned original position removably
The specific embodiment for being lauched the method for middle iron, manganese and ammonia nitrogen is corresponding, this removes the original of iron, manganese and ammonia nitrogen in underground water in situ
Position well design method can be achieved the object of the present invention by executing the process step in above method specific embodiment, because
Explanation in this above-mentioned removal underground water in situ in the method specific embodiment of iron, manganese and ammonia nitrogen, is also applied for this hair
The specific embodiment of the well design method in situ of iron, manganese and ammonia nitrogen in the removal underground water in situ of bright offer, the present invention with
Under specific embodiment in will not be described in great detail.
The embodiment of the present invention also provides a kind of well design method in situ in situ for removing iron, manganese and ammonia nitrogen in underground water, institute
It is located underground to state well in situ, the original position well design method includes:
Determine the filter module of purification of ground water；
Determine removing of iron and manganese ammonia nitrogen module and judgment module；
Wherein, described to remove iron, manganese and ammonia nitrogen module, it is flowed into the well in situ for receiving by the filter module
Underground water, and successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ；
The judgment module, for judging whether the underground water after removal iron, manganese and ammonia nitrogen meets preset water quality indicator,
If meeting preset water quality indicator, by water reserve of the ground water reserve in the well in situ.
The well design method in situ of iron, manganese and ammonia nitrogen in removal underground water described in the embodiment of the present invention, in water-bearing layer
Underground water flows into well in situ located underground in its natural state, in the well in situ, iron, manganese and ammonia nitrogen quilt in underground water
It successively removes, water reserve of the ground water reserve of predetermined quality index in the well in situ, water storage will be finally reached after purification
Water in area can be extracted out directly to be used for resident.In this way, it is not necessary that underground water extraction earth's surface is carried out dystopy processing, it can be effective
It reduces occupied area, reduce the capital consumptions such as Surface structure and Insulation simultaneously, be suitble to the lower samll cities and towns of water consumption.
In aforementioned removal underground water in situ in the specific embodiment of the well design method in situ of iron, manganese and ammonia nitrogen, into
One step, the original position well design method further include: determine water inlet aeration module；
Wherein, the water inlet is aerated module, for carrying out Air Exposure to the underground water flowed into the well in situ；
It is described to remove iron, manganese and ammonia nitrogen module, it is removed specifically for successively carrying out catalytic oxidation to the underground water after Air Exposure
Microorganism demanganization, microorganism nitration for removing ammonia nitrogen are combined in iron, contact autocatalyzed oxidation.
In aforementioned removal underground water in situ in the specific embodiment of the well design method in situ of iron, manganese and ammonia nitrogen, into
One step, the original position well design method further include:
Determine backwash module and backwashing wastewater drain module；
Wherein, the backwash module: for iron filtrate, demanganization filtrate will to be removed, except the sediment recoil in ammonia nitrogen filtrate
It is washed till the backwashing wastewater drainage area in well in situ；
The backwashing wastewater drain module, for passing through the backwashing wastewater draining pump in well in situ for backwashing wastewater
Waste water discharge in drainage area.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of method of iron, manganese and ammonia nitrogen in removal underground water in situ characterized by comprising
Underground water in water-bearing layer flows into well in situ located underground；
In the well in situ, successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ；
Whether the underground water after judging removal iron, manganese and ammonia nitrogen meets preset water quality indicator, if meeting preset water quality indicator,
The then water reserve by the ground water reserve in the well in situ；
Before iron, manganese and the ammonia nitrogen in the underground water that the successively removal flows into the well in situ, further includes:
Iron filtrate, demanganization filtrate will be removed, except ammonia nitrogen filtrate is fitted into the well in situ；
Described successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ in the well in situ, wraps
It includes:
Air Exposure is carried out to the underground water flowed into the well in situ；
Catalytic oxidation is successively carried out to the underground water after Air Exposure to remove iron, contact autocatalyzed oxidation joint microorganism demanganization, is micro-
Biological nitration for removing ammonia nitrogen；
The underground water to after Air Exposure carries out catalytic oxidation and removes iron, comprising:
The ferrous ion in underground water after adsorbing Air Exposure by the irony active filter film except iron filter material surface, is adsorbed
Ferrous ion is oxidized removal under the catalytic action of the irony active filter film；
The underground water to after Air Exposure carries out contact autocatalyzed oxidation joint microorganism demanganization, comprising:
Coated With Manganese Oxide material is prepared on scheduled solid particulate matter as demanganization filtrate, is adsorbed and is exposed by the demanganization filtrate
The Mn in underground water after gas disposal2+, the Mn that is adsorbed2+It is oxidized to MnO2And it is deposited on the surface of the demanganization filtrate；
By load of microorganisms, breeds microorganism constantly and be attached to the demanganization filter material surface, to remove in underground water
Manganese；
It is deposited on the MnO of the demanganization filter material surface2It is living that one layer of manganese matter is formed with the microorganism for being attached to the demanganization filter material surface
Property filter membrane；
The backwashing wastewater being washed till in well in situ that recoils except iron filtrate, demanganization filtrate, except the sediment in ammonia nitrogen filtrate is drained
Area；
Waste water in backwashing wastewater drainage area is discharged by the backwashing wastewater draining pump in well in situ；
Wherein, the well in situ be followed successively by from top to bottom aeration zone, backwash drainage area, except iron area, demanganization area, except ammonia nitrogen area,
Backwash area and water reserve；
The original position well further includes aeration air inlet pipe, backwash water inlet pipe, intake pipe and backwash drainpipe, wherein the exposure
The gas outlet of gas air inlet pipe is located at the aeration zone, and the water outlet of the backwash water inlet pipe is located at the backwash area, described
The water inlet of intake pipe is located at the water reserve, and the water inlet of the backwash drainpipe is located at the backwash drainage area.
2. the method for iron, manganese and ammonia nitrogen in removal underground water in situ according to claim 1, which is characterized in that described
Before underground water in water-bearing layer flows into well in situ located underground, further includes:
Determine the inner wall radius of original position well and the depth of well in situ.
3. the method for iron, manganese and ammonia nitrogen in removal underground water in situ according to claim 1, which is characterized in that described
Before underground water in water-bearing layer flows into well in situ located underground, further includes:
Determine the filling depth of filter in the well borehole wall of original position, the filter is mounted on above the aeration zone；The filtering
Device, for enhancing the water penetration of the well in situ and preventing silt from entering in the well in situ.
4. the method for iron, manganese and ammonia nitrogen in removal underground water in situ according to claim 1 to 3, which is characterized in that
The original position well is located underground, and the original position well design method includes:
Determine the filter module of purification of ground water；
It determines and removes iron, manganese and ammonia nitrogen module and judgment module；
Wherein, described to remove iron, manganese and ammonia nitrogen module, the ground in the well in situ is flowed by the filter module for receiving
It is lauched, and successively removal flows into iron, manganese and the ammonia nitrogen in the underground water in the well in situ；
The judgment module, for judging whether the underground water after removal iron, manganese and ammonia nitrogen meets preset water quality indicator, if full
The preset water quality indicator of foot, the then water reserve by the ground water reserve in the well in situ.
5. the method for iron, manganese and ammonia nitrogen in removal underground water in situ according to claim 4, which is characterized in that the original
Position well design method further include: determine water inlet aeration module；
Wherein, the water inlet is aerated module, for carrying out Air Exposure to the underground water flowed into the well in situ；
It is described to remove iron, manganese and ammonia nitrogen module, iron is removed specifically for successively carrying out catalytic oxidation to the underground water after Air Exposure, is connect
It touches autocatalyzed oxidation and combines microorganism demanganization, microorganism nitration for removing ammonia nitrogen.
6. the method for iron, manganese and ammonia nitrogen in removal underground water in situ according to claim 4, which is characterized in that the original
Position well design method further include:
Determine backwash module and backwashing wastewater drain module；
Wherein, the backwash module: for iron filtrate, demanganization filtrate will to be removed, except the sediment recoil in ammonia nitrogen filtrate is washed till
Backwashing wastewater drainage area in well in situ；
The backwashing wastewater drain module, for being drained backwashing wastewater by the backwashing wastewater draining pump in well in situ
Waste water discharge in area.
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| CN107673440A (en) * | 2017-11-22 | 2018-02-09 | 南昌工程学院 | A kind of well and method for removing iron for removing Fe Element in Groundwater |
| CN108104814B (en) * | 2017-12-18 | 2020-02-18 | 中国矿业大学 | Artificially-promoted repairing method for coal mining damage of high-iron-content underground aquifer |
| CN108640199A (en) * | 2018-05-09 | 2018-10-12 | 中国地质大学（武汉） | A kind of underground water purified in situ processing method based on complex mineral filtrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1155752A1 (en) * | 1999-01-25 | 2001-11-21 | Ebara Corporation | Method and apparatus for purifying polluted substances containing halogenated organic compound |
| CN104743667A (en) * | 2015-03-13 | 2015-07-01 | 环境保护部环境规划院 | Device for in-situ remediation of underground water pollution of agricultural irrigator well and method for remediation of underground water by using device |
| CN105036288A (en) * | 2015-06-17 | 2015-11-11 | 西安唯源环保科技有限公司 | Method for synchronously removing high-concentration ammonia nitrogen, iron and manganese in water through reverse flow oxygenation multi-stage catalytic oxidation |
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| KR20100067161A (en) * | 2008-12-11 | 2010-06-21 | 한국수자원공사 | In-situ remediation of fe and mn in groundwater using oxygen zone |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1155752A1 (en) * | 1999-01-25 | 2001-11-21 | Ebara Corporation | Method and apparatus for purifying polluted substances containing halogenated organic compound |
| CN104743667A (en) * | 2015-03-13 | 2015-07-01 | 环境保护部环境规划院 | Device for in-situ remediation of underground water pollution of agricultural irrigator well and method for remediation of underground water by using device |
| CN105036288A (en) * | 2015-06-17 | 2015-11-11 | 西安唯源环保科技有限公司 | Method for synchronously removing high-concentration ammonia nitrogen, iron and manganese in water through reverse flow oxygenation multi-stage catalytic oxidation |
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