CN109052622A - A kind of water body endogenous pollution cuts down material and water body endogenous pollution subduction zone - Google Patents
A kind of water body endogenous pollution cuts down material and water body endogenous pollution subduction zone Download PDFInfo
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- CN109052622A CN109052622A CN201811011905.3A CN201811011905A CN109052622A CN 109052622 A CN109052622 A CN 109052622A CN 201811011905 A CN201811011905 A CN 201811011905A CN 109052622 A CN109052622 A CN 109052622A
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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
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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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
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/14—NH3-N
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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
- C02F2209/18—PO4-P
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Abstract
The present invention provides a kind of water body endogenous pollutions to cut down material.In the present invention, modified zeolite improves adsorption capacity and ion-exchange capacity, improves a lot especially for the removal ability of organic pollutant and phosphorus on the basis of reservation zeolite original performance.Modified haydite can effectively remove COD, ammonia nitrogen in water body.Biologic packing material can be used as carrier, and the microorganism in water body is promoted to be attached to its surface and quickly breed, and form biomembrane, so that it is had very strong sustainable reduction effect, but algae and water will not be polluted and be destroyed to water body without obvious inhibiting effect.The experimental results showed that ammonia nitrogen, COD, total tp removal rate in water body respectively reach 85%, 87%, 91% after being handled using the water body endogenous pollution subduction zone that water body endogenous pollution provided by the invention reduction material assembles staying water.
Description
Technical field
The present invention relates to water-treatment technology fields, and in particular to a kind of water body endogenous pollution cuts down material and the endogenous dirt of water body
Contaminate subduction zone.
Background technique
In recent decades, the natural water bodies pollution level such as the lake in China, reservoir is got worse, and is had become and is restricted China
The obstacle of sustainable economic development, in relation to eutrophication water pollution control, restoration of the ecosystem research recently by various circles of society
Pay attention to.
Water eutrophication mainly since excessive N, P enter water body, has exceeded water body self-purification ability, so as to cause water quality
Deteriorate, planktonic algae overgrowing, the problems such as water body is muddy.The key of eutrophication water reparation is excessive N, P from pollution
It is removed in water body, restores the balance of water ecology and Tiny ecosystem.
General processing method includes dredging method and chemical method in the prior art.But dredging can not in many cases
The serious pollution problem of bed mud is well solved, while there is also flat to secondary pollution of water, destruction water ecosystem for dredging
The innocuity treatment problem etc. of the bed mud of the problem of weighing apparatus and dredging.Chemical method is usually required using chemical reagent, it will usually right
Water body damages, and often water body is that clearly, but the ecosystem of water body is also destroyed sometimes.Therefore, efficient, environment is developed
The problem of method of friendly reduction water body endogenous pollution becomes current urgent need to resolve.
Summary of the invention
The purpose of the present invention is to provide a kind of water body endogenous pollutions to cut down material and water body endogenous pollution subduction zone, this hair
The water body endogenous pollution subduction zone of bright offer is good to water body endogenous pollution reduction effect and will not water body be polluted and be broken
It is bad, it is environmental-friendly.
In order to achieve the above-mentioned object of the invention, the present invention the following technical schemes are provided:
The present invention provides a kind of water body endogenous pollutions to cut down material, by volume fraction, including following components:
Modified zeolite 10~30%, the modified zeolite are to be modified to obtain to zeolite using sodium chloride；
Biologic packing material 30~50%；
Modified haydite 30~40%, the modified haydite are to be modified to obtain to haydite using frerrous chloride.
Preferably, the granularity of the modified zeolite is 5~18mm；The specification of the biologic packing material is 5~10mm；It is described to change
Property haydite granularity be 5~10mm.
Preferably, the preparation method of the modified zeolite, comprising the following steps:
Zeolite is soaked in sodium chloride solution and is modified processing, obtains modified zeolite presoma；
The modified zeolite presoma is successively washed, boils processing, screening and drying, obtains modified zeolite.
Preferably, the mass concentration of the sodium chloride solution is 6~10%.
Preferably, the temperature of the modification is 35~40 DEG C, and the time is 12~20h.
Preferably, the preparation method of the modified haydite, comprising the following steps:
Haydite is soaked in sulfuric acid and is pre-processed, pretreatment haydite is obtained；
The pretreatment haydite is mixed with solution of ferrous chloride, sodium hydroxide solution is added dropwise into gained mixture, into
Row modification obtains modified haydite presoma；
The modified haydite presoma is successively washed, sieved and dried, modified haydite is obtained.
Preferably, the solution of ferrous chloride is saturation solution of ferrous chloride；The sodium hydroxide solution is saturation hydrogen-oxygen
Change sodium solution.
Preferably, the temperature of the modification is 35~40 DEG C, and the time is 12~20h.
The present invention provides a kind of water body endogenous pollution subduction zones, including in mesh bag and the water body being filled in the mesh bag
Source pollution reduction material, it is that water body endogenous pollution described in above-mentioned technical proposal cuts down material that the water body endogenous pollution, which cuts down material,
Material；Wherein, the water body endogenous pollution cuts down the modified zeolite in material and is modified haydite is filled in the two of the mesh bag respectively
End, biologic packing material are filled in the intermediate position of the mesh bag.
Preferably, the radius of the water body endogenous pollution subduction zone is 15~20cm, and length is staying water depth
1.5 again.
The present invention provides a kind of water body endogenous pollutions to cut down material, by volume fraction, including following components: modified boiling
Stone 10~30%, the modified zeolite are to be modified to obtain to zeolite using sodium chloride；Biologic packing material 30~50%；Modified pottery
Grain 30~40%, the modified haydite are to be modified to obtain to haydite using frerrous chloride.In the present invention, through sodium chloride into
The modified obtained modified zeolite of row improves adsorption capacity and ion exchange energy on the basis of reservation zeolite original performance
Power improves a lot especially for the removal ability of organic pollutant and phosphorus；And there is good chemical stabilization in water body
Property, it does not decompose, never degenerate, water body will not be polluted and be destroyed；Meanwhile also there is decoloration, deodorization taste removal and other effects.Through chlorine
Removal COD in water body, the ability of ammonia nitrogen can effectively be promoted by changing the modification haydite obtained after ferrous iron is modified.Biologic packing material
It can be used as carrier, the microorganism in water body is promoted to be attached to its surface and quickly breed, form biomembrane (different quality and item
Under part, there are certain difference, generally 3~15 days in the biofilm time)；Micropopulation after biofilm makes organic matter and ammonia in water body
Nitrogen rapidly decomposes, the biomass of high concentration and diversified biological mushroom, so that it is had very strong sustainable reduction effect, but to water
Body algae will not be polluted and be destroyed to water body without obvious inhibiting effect.
The present invention also provides a kind of water body endogenous pollution subduction zone, in water body endogenous pollution subduction zone provided by the invention
Both ends are separately filled with modified zeolite and modified haydite, and intermediate position is filled out filled with biologic packing material, are more advantageous to microbial bacteria
Absorption and breeding improve endogenous pollution and cut down effect.The experimental results showed that being cut down using water body endogenous pollution provided by the invention
After band handles staying water, ammonia nitrogen, COD, total tp removal rate in water body respectively reach 85%, 87%, 91%.
Detailed description of the invention
Fig. 1 is the pictorial diagram of biologic packing material in the present invention；
Fig. 2 is the structural schematic diagram of water body endogenous pollution subduction zone in the present invention.
Specific embodiment
The present invention provides a kind of water body endogenous pollutions to cut down material, by volume fraction, including following components:
Modified zeolite 10~30%, the modified zeolite are to be modified to obtain to zeolite using sodium chloride；
Biologic packing material 30~50%；
Modified haydite 30~40%, the modified haydite are to be modified to obtain to haydite using frerrous chloride.
By volume fraction, it includes modified zeolite 10~30% that water body endogenous pollution provided by the invention, which cuts down material, excellent
It is selected as 15~25%.In the present invention, the granularity of the modified zeolite is preferably 5~18mm, more preferably 10~15mm.
In the present invention, the modified zeolite is to be modified to obtain to zeolite using sodium chloride；The modified zeolite
Preparation method preferably includes following steps:
Zeolite is soaked in sodium chloride solution and is modified processing, obtains modified zeolite presoma；
The modified zeolite presoma is successively washed, boils processing, screening and drying, obtains modified zeolite.
Zeolite is preferably soaked in sodium chloride solution and is modified processing by the present invention, obtains modified zeolite presoma.This
Invention does not have the zeolite special restriction, using commercial goods well known to those skilled in the art；In the present invention
Embodiment in, specifically use natural zeolite.In the present invention, the mass concentration of the sodium chloride solution be preferably 6~
10%, more preferably 7~9%.
In the present invention, the temperature of the modification is preferably 35~40 DEG C, and more preferably 37 DEG C；Time is preferably 12
~20h, more preferably 14~16h.
After obtaining modified zeolite presoma, the modified zeolite presoma is preferably successively washed, is boiled by the present invention
Processing, screening and drying, obtain modified zeolite.In the present invention, washing reagent used by the washing is preferably deionization
Water；The present invention restriction not special for the washing, the technical solution using washing well known to those skilled in the art are
It can.In the present invention, the time for boiling processing is preferably 25~35min；The present invention is changed described in processing removal by boiling
Impurity in property zeolite precursor body opening gap.The present invention restriction not special for the screening, is sieved according to required partial size
Point.In the present invention, the temperature of the drying is preferably 100~110 DEG C；The present invention does not have the time of the drying
Special restriction, can be sufficiently dry by the modified zeolite presoma.
In the present invention, zeolite is a kind of aluminium silicate mineral with rack-like structure that slag is formed, zeolite warp
After sodium chloride is modified, on the basis of reservation zeolite original performance, adsorption capacity and ion-exchange capacity are improved, especially
It improves a lot for the removal ability of organic pollutant and phosphorus, raising amount is respectively up to 50% or more；And have in water body
Good chemical stability does not decompose, never degenerates, and will not water body be polluted and be destroyed；Meanwhile also there is decoloration, deodorization
Taste removal and other effects.
By volume fraction, it includes biologic packing material 30~50% that water body endogenous pollution provided by the invention, which cuts down material, excellent
It is selected as 35~45%.In the present invention, the specification of the biologic packing material is preferably 5~10mm.In the present invention, the biology is filled out
Material can be the biologic packing material of single specification, or the mixture of different size biologic packing material；When the biologic packing material is
When the mixture of different size, the not special restriction of proportion of the present invention for every kind of specification biologic packing material, using arbitrarily matching
Than.The present invention does not have the type of the biologic packing material or source special restriction, ripe using those skilled in the art
The commercial goods known, as shown in Figure 1.
In the present invention, the biologic packing material can be used as carrier, and the microorganism in water body is promoted to be attached to its surface simultaneously
Quickly breeding forms biomembrane (for different quality under the conditions of, there are certain difference, generally 3~15 days in the biofilm time)；Biofilm
Micropopulation afterwards decomposes organic matter and ammonia nitrogen in water body rapidly, the biomass of high concentration and diversified biological bacteria
Class makes it have very strong sustainable reduction effect；Meanwhile the biologic packing material has the characteristics that not limited by transparency, illumination etc.,
It is turbid can to significantly reduce water body on the basis of keeping river navigation and drainning off floodwaters waiting original functions and not influencing urban landscape
Degree improves water transparency, cuts down the pollutional loads such as water body COD, N and P, improves water body DO content, but to algae and water without bright
Aobvious inhibiting effect, will not pollute and destroy to water body.
By volume fraction, it includes modified haydite 30~40% that water body endogenous pollution provided by the invention, which cuts down material, excellent
It is selected as 33~37%.In the present invention, the granularity of the modified haydite is preferably 5~10mm.
In the present invention, the modified haydite is to be modified to obtain to haydite using frerrous chloride；The modified haydite
Preparation method, preferably include following steps:
Haydite is soaked in sulfuric acid and is pre-processed, pretreatment haydite is obtained；
The pretreatment haydite is mixed with solution of ferrous chloride, sodium hydroxide solution is added dropwise into gained mixture, into
Row modification obtains modified haydite presoma；
The modified haydite presoma is successively washed, sieved and dried, modified haydite is obtained.
Haydite is preferably soaked in sulfuric acid and pre-processes by the present invention, obtains pretreatment haydite.The present invention is for described
Haydite does not have special restriction, using commercial goods well known to those skilled in the art.In the present invention, the sulfuric acid
Mass concentration is preferably 96~98%.In the present invention, the pretreated temperature is preferably 35~40 DEG C, more preferably 37
℃；Time is preferably 20~28h, more preferably 22~26h.
After completing the pretreatment, the haydite after immersion is preferably washed with water to neutrality by the present invention, dry, obtains pre- place
Manage haydite.The present invention restriction not special for the drying, can be sufficiently dry by washing to the haydite after neutrality.
The present invention pre-processes haydite using sulfuric acid, can change the structure of haydite, especially surface texture, promotes its surface
Product.
After obtaining pretreatment haydite, the present invention preferably mixes the pretreatment haydite with solution of ferrous chloride, to gained
Sodium hydroxide solution is added dropwise in mixture, is modified processing, obtains modified haydite presoma.In the present invention, the chlorination
Ferrous iron solution is preferably saturated solution of ferrous chloride；The sodium hydroxide solution is preferably saturated sodium hydroxide solution.The present invention
There is no special restriction for the drop rate of the sodium hydroxide solution, using drop rate well known to those skilled in the art
, specifically such as it is added dropwise.
In the present invention, the temperature of the modification is preferably 35~40 DEG C, and more preferably 37 DEG C；Time is preferably 12
~20h, more preferably 14~16h.In an embodiment of the present invention, specifically by the pretreatment haydite and solution of ferrous chloride
Mixing, is added dropwise sodium hydroxide solution into gained mixture, after deposit to appear, is modified under the conditions of 35~40 DEG C
Handle 12~20h.
After obtaining modified haydite presoma, the modified haydite presoma is preferably successively washed, is sieved by the present invention
And drying, obtain modified haydite.In the present invention, washing reagent used by the washing is preferably deionized water；The present invention
The restriction not special for the washing, using the technical solution of washing well known to those skilled in the art.The present invention
The restriction not special for the screening, is sieved according to required partial size.In the present invention, the temperature of the drying
Preferably 100~110 DEG C；The present invention does not have the time of the drying special restriction, can will be before the modified haydite
It is sufficiently dry to drive body.
In order to guarantee modified effect, the present invention preferably repeats the modification and post-processing operation and (including washes
It washs, sieve and dries)；In the present invention, the number of repetitive operation is preferably 2~4 times, and more preferably 3 times.
In the present invention, haydite is modified through frerrous chloride, and biggish variation has occurred in surface microstructure, after modified
Haydite surface forms crystal cluster abundant, effectively increases the specific surface area and surface roughness of pottery material, and then can be effective
Increase pottery material removal COD in water body, the ability of ammonia nitrogen.Wherein, compared with before modified, modified haydite proposes the adsorption capacity of ammonia nitrogen
1.7 times~2.1 times are risen, 1.8 times~2.4 times are promoted to the adsorption capacity of COD.
The present invention provides a kind of water body endogenous pollution subduction zones, including in mesh bag and the water body being filled in the mesh bag
Source pollution reduction material, it is that water body endogenous pollution described in above-mentioned technical proposal cuts down material that the water body endogenous pollution, which cuts down material,
Material；Wherein, the water body endogenous pollution cuts down the modified zeolite in material and is modified haydite is filled in the two of the mesh bag respectively
End, biologic packing material are filled in the intermediate position of the mesh bag.Present invention preferably employs ropes to tie the both ends of the mesh bag
Sealing is tied up, will not spill out to guarantee that the water body endogenous pollution being filled in the mesh bag cuts down material；The present invention preferably will
Rope for sealing two ends reserves 1m or more, in order to the fixed water body endogenous pollution subduction zone of subsequent installation.The present invention
It is preferred that the main part of the mesh bag is bundled in place using rope, specifically, being in the modified zeolite
Bundled between the biologic packing material using rope, between the biologic packing material and the modified haydite using rope into
Row binding, different component is separated, prevents different component from mixing (as shown in Figure 2).
The present invention does not have the aperture of the mesh bag special restriction, can guarantee the water body being filled in the mesh bag
Endogenous pollution cuts down material and will not spill out and guarantee that the water body endogenous pollution reduction material can be suitable with staying water
Benefit carries out mass exchange.In the present invention, the aperture of the mesh bag is preferably≤3mm.
The packed density that the present invention cuts down material for the water body endogenous pollution does not have a special restriction, fill it is closely knit and
It can guarantee that the water body endogenous pollution cuts down material and can go on smoothly mass exchange with staying water.
The present invention does not have special restriction for the size of the water body endogenous pollution subduction zone, according to staying water dirt
The size of dye degree selection water body endogenous pollution subduction zone.In the present invention, the shape of the water body endogenous pollution subduction zone
Shape is preferably cylindric, and the radius of the water body endogenous pollution subduction zone is preferably 15~20cm, and length is preferably pending water
1.5 times of body depth.
In the present invention, using the water body endogenous pollution subduction zone when handling staying water, preferably
The one end (lower end) that will be filled with modified zeolite is placed in bottom to staying water, will be filled with modified haydite one end (on
End) it is placed in the top of staying water.
The fixed mode of installation of the present invention for the water body endogenous pollution subduction zone does not have special restriction, using this
Fixed form is installed known to the technical staff of field.Such as, the upper end of the water body endogenous pollution subduction zone is passed through into ecology
Chinampa is fixed, and lower end is placed in in staying water, or the lower end of the water body endogenous pollution subduction zone is consolidated
Due to the bottom of staying water, a floating ball is fixed in upper end, utilizes the buoyancy of water and the weight of water body endogenous pollution subduction zone
Power handles water body endogenous pollution subduction zone to staying water.
The present invention preferably sets selection water body endogenous pollution according to the installation fixing position of water body endogenous pollution subduction zone and cuts down material
The proportion of each component in material, specifically, when the bottom for being fixed on staying water of water body endogenous pollution subduction zone, water
The proportion of each component is preferred in the pollution reduction material of internal source are as follows: modified zeolite 25~30%, biologic packing material 30~40% are modified
Haydite 35~40%；When the middle layer for being fixed on staying water of water body endogenous pollution subduction zone, water body endogenous pollution
The proportion for cutting down each component in material is preferred are as follows: modified zeolite 10~20%, biologic packing material 40~50%, modification haydite 35~
40%；When the upper layer for being fixed on staying water of water body endogenous pollution subduction zone, water body endogenous pollution cuts down material
The proportion of middle each component is preferred are as follows: modified zeolite 15~25%, biologic packing material 40~50%, modified haydite 30~35%.
The present invention preferably periodically replaces water body endogenous pollution subduction zone according to staying water pollution level；Specifically,
As season replacement is primary.In the present invention, carry out that treated that water body endogenous pollution subduction zone is only needed to staying water
I.e. reusable after flushing, stock utilization is high, at low cost.
Below in conjunction with the embodiment in the present invention, the technical solution in the present invention is clearly and completely described.It is aobvious
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment 1
Prepare modified zeolite, comprising the following steps:
(1) natural zeolite is soaked in the sodium chloride solution that mass concentration is 8% and is modified processing 50h, changed
Property zeolite precursor body；
(2) modified zeolite presoma in the step (1) is washed with deionized water, then carries out boiling processing
30min screens out the material that partial size is 5~18mm, is dried under the conditions of 105 DEG C, obtains modified zeolite.
In order to verify influence of the modification to zeolite properties, the performance of natural zeolite and modified zeolite is compared,
Natural zeolite is specifically respectively adopted under the same conditions and modified zeolite handles staying water, the results show that changing
Property zeolite improves a lot for the removal ability of COD in water body and phosphorus, and compared with natural zeolite, modified zeolite is for water body
The removal ability of middle COD and phosphorus is respectively increased 50%.
Prepare modified haydite, comprising the following steps:
(a) 1000g haydite is soaked in the sulfuric acid that mass concentration is 98% and is pre-processed for 24 hours, by the pottery after immersion
Grain is washed with water to neutrality, dry, obtains pretreatment haydite；
(b) pretreatment haydite in the step (a) is mixed with saturation solution of ferrous chloride, dropwise into gained mixture
It is added and is saturated sodium hydroxide solution, after deposit to appear, processing 12h is modified under the conditions of 37 DEG C, obtains modified pottery
Grain presoma；
(c) haydite presoma modified in the step (b) is washed using deionized water, screen out partial size be 5~
The material of 10mm is dried under the conditions of 105 DEG C, obtains modified material；
(d) the modified material is reprocessed three times according to step (b) and step (c), obtains modified haydite.
In order to verify influence of the modification to haydite performance, the performance of unmodified haydite and modified haydite is carried out pair
Than unmodified haydite is specifically respectively adopted under the same conditions and handles with modified haydite staying water, as a result shows
Showing, modified haydite improves a lot for the removal ability of ammonia nitrogen in water body and COD, compared with unmodified haydite, modified pottery
Grain promotes 1.7 times~2.1 times to the adsorption capacity of ammonia nitrogen, promotes 1.8 times~2.4 times to the adsorption capacity of COD.
The formula of water body endogenous pollution reduction material are as follows: press volume fraction, modified zeolite 30%, biologic packing material 30%
(specification is 5~10mm), modified haydite 40%.
Assembling and the fixed water body endogenous pollution subduction zone of installation, comprising the following steps:
Water body endogenous pollution reduction material is filled in mesh bag (aperture 3mm), wherein the endogenous dirt of water body
Dye, which cuts down the both ends that the modified zeolite in material is filled in the mesh bag with modified haydite respectively, (will be filled with the one of modified zeolite
End is known as lower end, and the one end that will be filled with modified haydite is known as upper end), biologic packing material is filled in the intermediate position of the mesh bag；
The both ends of the mesh bag are bundled using rope, meanwhile, using rope between the modified zeolite and the biologic packing material
Son is bundled, and is bundled between the biologic packing material and the modified haydite using rope, obtains water body endogenous pollution
Subduction zone (shape is cylindric, diameter 20cm, length 3m)；
The upper end of the water body endogenous pollution subduction zone is fixed by ecological floating island, lower end is placed in to be processed
In water body, using the buoyancy of water and the gravity of water body endogenous pollution subduction zone, make water body endogenous pollution subduction zone to pending water
Body is handled；Wherein, the depth of the staying water is 2 meters, and ammonia nitrogen concentration 4.32mg/L, total phosphorus concentration are
0.89mg/L, COD 26mg/L.
The results show that carrying out processing 3 days to staying water using water body endogenous pollution subduction zone provided in this embodiment
Afterwards, ammonia nitrogen in water body, COD, total phosphorus removal rate respectively reach 85%, 87%, 91%.
Embodiment 2
Fixed water body endogenous pollution subduction zone is assembled and installed according to the method for embodiment 1, and staying water is carried out
Processing, the difference is that:
Water body endogenous pollution reduction material formula are as follows: press volume fraction, modified zeolite 10%, biologic packing material 50%,
Modified haydite 40%；
The diameter of water body endogenous pollution subduction zone is 15cm, length 1.5m；
The depth of staying water is 1m, ammonia nitrogen concentration 5.41mg/L, total phosphorus concentration 1.02mg/L, COD 32mg/L.
The results show that carrying out processing 3 days to staying water using water body endogenous pollution subduction zone provided in this embodiment
Afterwards, ammonia nitrogen in water body, COD, total phosphorus removal rate respectively reach 81%, 82%, 87%.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of water body endogenous pollution cuts down material, by volume fraction, including following components:
Modified zeolite 10~30%, the modified zeolite are to be modified to obtain to zeolite using sodium chloride；
Biologic packing material 30~50%；
Modified haydite 30~40%, the modified haydite are to be modified to obtain to haydite using frerrous chloride.
2. water body endogenous pollution according to claim 1 cuts down material, which is characterized in that the granularity of the modified zeolite is
5~18mm；The specification of the biologic packing material is 5~10mm；The granularity of the modified haydite is 5~10mm.
3. water body endogenous pollution according to claim 1 or 2 cuts down material, which is characterized in that the system of the modified zeolite
Preparation Method, comprising the following steps:
Zeolite is soaked in sodium chloride solution and is modified processing, obtains modified zeolite presoma；
The modified zeolite presoma is successively washed, boils processing, screening and drying, obtains modified zeolite.
4. water body endogenous pollution according to claim 3 cuts down material, which is characterized in that the quality of the sodium chloride solution
Concentration is 6~10%.
5. water body endogenous pollution according to claim 3 cuts down material, which is characterized in that the temperature of the modification is
35~40 DEG C, the time is 12~20h.
6. water body endogenous pollution according to claim 1 or 2 cuts down material, which is characterized in that the system of the modified haydite
Preparation Method, comprising the following steps:
Haydite is soaked in sulfuric acid and is pre-processed, pretreatment haydite is obtained；
The pretreatment haydite is mixed with solution of ferrous chloride, sodium hydroxide solution is added dropwise into gained mixture, is changed
Property processing, obtain modified haydite presoma；
The modified haydite presoma is successively washed, sieved and dried, modified haydite is obtained.
7. water body endogenous pollution according to claim 6 cuts down material, which is characterized in that the solution of ferrous chloride is full
And solution of ferrous chloride；The sodium hydroxide solution is saturation sodium hydroxide solution.
8. water body endogenous pollution according to claim 6 cuts down material, which is characterized in that the temperature of the modification is
35~40 DEG C, the time is 12~20h.
9. a kind of water body endogenous pollution subduction zone cuts down material including mesh bag and the water body endogenous pollution being filled in the mesh bag
Material, it is that any one of claim 1~8 water body endogenous pollution cuts down material that the water body endogenous pollution, which cuts down material,；Wherein,
The water body endogenous pollution cuts down the modified zeolite in material and is modified the both ends that haydite is filled in the mesh bag respectively, and biology is filled out
Material is filled in the intermediate position of the mesh bag.
10. water body endogenous pollution subduction zone according to claim 9, which is characterized in that the water body endogenous pollution is cut down
The radius of band is 15~20cm, and length is 1.5 times of staying water depth.
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