CN101733067A - Adsorbing material, preparation thereof and method for purifying sewage by using adsorbing material - Google Patents
Adsorbing material, preparation thereof and method for purifying sewage by using adsorbing material Download PDFInfo
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- CN101733067A CN101733067A CN200810177332A CN200810177332A CN101733067A CN 101733067 A CN101733067 A CN 101733067A CN 200810177332 A CN200810177332 A CN 200810177332A CN 200810177332 A CN200810177332 A CN 200810177332A CN 101733067 A CN101733067 A CN 101733067A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 26
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 54
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 27
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- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- ROSDSFDQCJNGOL-UHFFFAOYSA-N protonated dimethyl amine Natural products CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 2
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Abstract
The invention discloses an adsorbing material for removing phosphorous and nitrogen, a preparation method thereof and a method for purifying sewage by using the adsorbing material. The preparation method for the adsorbing material comprises a step of mixing a clay mineral material, an organic modifier and a proper amount of deionized water to performing organic modification treatment on the clay mineral material. The adsorbing material prepared by the method can efficiently remove the phosphorous and the nitrogen, has high adsorption capacity, high removal efficiency and strong water quality change impact capacity resistance, and can be used for treating the sewage which cannot be treated by a biochemical method, the treatment does not produce sludge, and the treatment cost is low.
Description
Technical field
The present invention relates to a kind of solid adsorption material and preparation method thereof, particularly a kind of denitrogenation dephosphorizing solid adsorption material that comprises inorganic material and preparation method thereof belongs to the environmental protection field.
Background technology
Because nature and artificial factor, the nutriments such as nitrogen, phosphorus that enter river, river, lake, sea constantly increase, and water body nitrogen phosphorus exceeds standard, and body eutrophication constantly aggravates, and causes that algae and other planktonic organisms breed rapidly, causes blue-green algae or red tide frequently to break out.Algal bloom not only causes the water body dissolved oxygen content to descend water quality deterioration, fish and other biological mortality; But also having had a strong impact on national safe drinking water, ecological environment health in serious threat.
Dephosphorization commonly used is at present denitrogenated technology and is comprised neutralization precipitation method, bioanalysis and absorption method.
Wherein, the neutralization precipitation method need add a large amount of lime and coagulant, produces to be difficult to the mud handled in a large number, causes secondary pollution easily, and is difficult to thoroughly to eliminate the pollution to environment of nitrogenous, phosphorus waste water.Bioanalysis is that method is denitrogenated in a kind of dephosphorization that often has, in sewage disposal, generally adopt this technology, but it is loaded down with trivial details to adopt biological treatment to remove the technical process of nitrogen phosphorus, the operation process complexity, operation stability is poor, be subjected to the temperature, acid-base value etc. of sewage to influence big, strong to organic concentration dependence in the waste water, not shock-resistant etc., particularly when the biodegradability of coming water is low, be difficult to satisfy processing requirements, and it is lower to remove the effect of nitrogen and phosphorus, the cost of sewage disposal height.
Publication number is that the Chinese patent application of CN1884151A discloses a kind of bio-treatment method for dephosphorization and denitrogenation of sewage, system is made up of adsorption tank, sedimentation basin, regenerated reactor, selection pond, dephosphorization pond, nitrification tank, denitrification pond and hydrolysis acidification pool, sewage at first enters adsorption tank, mixes with the returned sludge of selecting the pond; Mixed liquor is discharged to sedimentation basin from adsorption tank, realizes mud-water separation, and it is nitrated that supernatant enters nitrification tank, enters the denitrification pond again and realizes discharging after the denitrogenation; Sedimentation basin part mud enters hydrolysis acidification pool and carries out anaerobic hydrolysis, and the hydrolysis acidification pool supernatant enters the dephosphorization pond and carries out chemical dephosphorization; Sedimentation basin another part mud refluxes, and enters to select the pond, selects the pond to be operated in anaerobic environment; The mixed liquor of selecting the pond to discharge enters regenerated reactor; Another part supernatant that discharge in the dephosphorization pond enters the denitrification pond and promotes denitrification.This dephosphorization denitrogenation processing method operational processes complexity is come the water water quality impact big, poor practicability.
Publication number is the technology that the Chinese patent application of CN1715218A discloses a kind of traditional waste water treatment process denitrogenation dephosphorizing, add chemical dephosphorization agent in setting pot end or preliminary sedimentation tank delivery port or aeration tank aeration section and outlet thereof, 30%～60% activated sludge and part excess sludge reflux simultaneously to preliminary sedimentation tank, make traditional waste water treatment process have the collaborative phosphorus removal functional of biological-chemical; Simultaneously in the terminal series connection of second pond aeration Zeolite-bio filter tank, utilize the absorption biological agent of zeolite to remove ammonia nitrogen in the second pond water outlet, and make zeolite keep stable adsorption capacity by the collaborative palingenesis of chemical-biological.The same existence of this inventive method is subjected to the influence of pending sewage quality, and the impact of water-fast matter is poor, and the cost of sewage disposal height.
Absorption method also is that method is denitrogenated in a kind of dephosphorization commonly used at present, and its advantage is come the influence of water variation water quality little, and shock-resistant ability is strong, can handle the sewage that biochemical process can't be handled, dephosphorization is simultaneously denitrogenated, and the processing accuracy height, but general processing cost is higher, and the adsorption capacity of adsorbent is low.
Publication number is that the Chinese patent application of CN1817438A discloses a kind of method for preparing the sewage dephosphorization adsorbent with ion adsorption type re, ion adsorption type rare earth ore and clay are prepared by 10: 0.5～4 weight ratio, granulation, in temperature is under 500～800 ℃, roasting 1～3 hour, went into reactor elder generation acid activation liquid cyclic activation 4～8 hours, regulating activating solution pH value with alkali lye then is 8～12, recirculation activation processing 4～8 hours, be under 100～120 ℃ in temperature again, dry half an hour, and then heat up with per minute 10-20 ℃ heating rate, final temperature is 400～700 ℃ of following roastings 0.5～2 hour, makes the ion adsorption type re adsorbent after the cooling.It is raw material that this inventive method adopts ion adsorption type rare earth ore, the preparation cost height, and the complex process of preparation adsorbent, production efficiency is low.
Publication number is the preparation method that the Chinese patent application of CN1803274A relates to a kind of adsorption agent for sewage denitrification and dephosphorization, with granularity is 60-100 purpose powdery zeolite, diatomite or aluminium oxide, in distilled water, soaked 15～30 minutes, filtering the back dried 1～2 hour under 100～430 ℃ of temperature, solid-liquid weight ratio according to 1: 40～60 adds in the rare-earth hydroxide solution for preparing, normal temperature stirred 45～60 minutes down, left standstill dipping 15～20 hours, solution is filtered, obtain filter cake and filtrate, filter cake is through 300～600 ℃ of temperature, and the roasting of 0.5～2 hour time obtains the adsorbent of aperture 0.3nm～0.5nm after screening.Add rare-earth hydroxide solution in this preparation of adsorbent process, the production cost height, the preparation of adsorbent complex process, the adsorption capacity of adsorbent is low.
Granted publication number discloses the synthetic bentonite method of a kind of microwave for the Chinese patent of CN1210205C, the 20-200%CEC of cation exchange capacity that surfactant is pressed the bentonite original soil is soluble in water, its quality solid-to-liquid ratio scope is 1: 5-1: 500, the bentonite original soil that add drying, sieves, put into the microwave reactor of 100-5000W microwave power, irradiation 10s-30min, filter, the surfactant that flush away is free, microwave drying, in 60-120 ℃ of oven dry down, drying time is 30min-24hr, through grinding, sieving, obtain organobentonite.This inventive method adopts the synthetic organobentonite of microwave method, and resonant cavity type microwave reaction equipment is strict, the process conditions harshness, and also the decolouring that the organobentonite that obtains of this invention modification is mainly used in waste water from dyestuff is handled.
Summary of the invention
The objective of the invention is at the above problem of prior art and the method that a kind of dephosphorization denitrogenation sorbing material, its preparation method is provided and utilizes this materials purification sewage, this sorbing material is big to the adsorption capacity of nitrogen phosphorus, remove the efficient height of nitrogen phosphorus, do not produce mud after the processing, and preparation technology is simple, and disposal cost is low.
For realizing purpose of the present invention, one aspect of the present invention provides a kind of preparation method of dephosphorization denitrogenation sorbing material, comprises step: clay mineral material, organic modifiers and appropriate amount of deionized water are mixed, the clay mineral material is carried out organically-modified processing.
Wherein, the mol ratio of the commutative capacity of cation of described organic modifiers and clay mineral material is 0.4-1.2: 1, be preferably 0.6-1.0: 1.
Wherein, described mixed process comprises the steps:
(1) clay mineral material, organic modifiers and appropriate amount of deionized water are mixed and stir, wherein control the 12-50% that deionized water content is the mixture total weight amount;
(2) with the clay mineral material, organic modifiers and the deionized water mixture that mix under 50-90 ℃, stirring reaction 1-60min;
(3) with reacted blended stock drying, promptly.
Particularly, the deionized water content described in the step (1) is the 20-40% of mixture total weight amount; The temperature of reaction is chosen as 60-70 ℃ in the step (2); Reaction time is chosen as 5-40min; Baking temperature described in the step (3) is lower than 50 ℃, and dry mixture moisture content is 8-10%.
Wherein, described clay mineral material is one or more in bentonite, montmorillonite, illite, attapulgite, zeolite, diatomite and the vermiculite; Described organic modifiers is selected from a kind of in cationic surfactant, anion surfactant, zwitterionic surfactant, the non-ionic surface active agent.
Particularly, described cationic surfactant is selected from one or more in chlorination or bromination dodecyl trimethyl ammonium, myristyl dimethyl benzyl ammonium, cetyltrimethyl ammonium, octadecyl trimethyl ammonium, two-octadecyl Dimethyl Ammonium, cetyl pyridinium, the myristyl pyridine;
Particularly, described anion surfactant is selected from one or more in neopelex, the N-oleoyl N methyl taurine sodium; Described amphoteric surfactant is a diethyl phthalate; Described non-ionic surface active agent is selected from one or more in OPEO (Triton X-100), Brij-721, the polyoxyethylene sorbitan mono laurate fat.
In addition, also comprise and carry out drying again after by extruder reacted blended stock being extruded into strip-shaped materials.
Particularly, dried compound is pulverized and sieved, make the particulate adsorbent material of different grain size scope.
The present invention provides a kind of dephosphorization denitrogenation sorbing material that is prepared from according to the method described above on the other hand.
Another aspect of the invention provides the method for the dephosphorization denitrogenation sorbing material purifying water body that a kind of utilization is prepared from according to the method described above, comprise sorbing material evenly sprayed in water body that the consumption of wherein said sorbing material is the described sorbing material that 5-1200g is sprayed in every square metre of waters.
Wherein, the water body that polluted by blue-green algae of described water body; The consumption of described sorbing material is according to being 1cm in water surface blue-green algae Guinier-Preston zone thickness, and the described sorbing material of 5-1200g is sprayed in every square metre of waters, and 800-950g is sprayed in preferred every square metre of waters.
The method that the dephosphorization denitrogenation sorbing material that another aspect of the invention provides a kind of utilization to be prepared from is according to the method described above purified waste water, sorbing material is contacted with sewage, phosphorus and nitrogen in the absorption sewage, wherein, the consumption of described sorbing material is the described sorbing material that every liter of sewage uses 10-1500g.
Wherein, the consumption of described sorbing material is preferably 1000-1300g/L sewage, and optimum consumption is a 1200-1300/L sewage.
Wherein, a kind of in the following mode selected in the way of contact of described sorbing material and sewage:
1) sorbing material is adopted the fixed-bed type adsorbent equipment fix, make effluent stream then through the fixed bed of described sorbing material is housed;
2) still formula treating apparatus
3) sorbing material is placed in the adsorption column, make effluent stream then through the adsorption column of sorbing material is housed.
The denitrogenation dephosphorizing sorbing material of the present invention's preparation has following advantage:
1, sorbing material of the present invention, through after organically-modified, the clay mineral material surface changes hydrophobic lipophile into by hydrophily, the organic matter that contains elements such as nitrogen or phosphorus is by distribution principle or surface absorption, adsorbed by organically-modified clay, big to the adsorption capacity of nitrogen phosphorus, remove the efficient height, total tp removal rate reaches more than 67%, and nitrogen removal rate reaches more than 37%.
2, sorbing material adsorption capacity height of the present invention, anti-change of water quality impact capacity is strong, can handle the sewage that biochemical process can't be handled, and handles and does not produce mud, and disposal cost is low etc.
3, sorbing material of the present invention can adopt multiple occupation mode in sewage disposal process, can adopt the fixed-bed type adsorbent equipment, also can use still formula treating apparatus, perhaps other known sewage-treatment plant or mode; The denitrogenation dephosphorizing sorbing material of the present invention's preparation uses form various, can be the particles with different sizes form, also can be powder morphology.
4, the preparation method of sorbing material of the present invention is simple, and raw material sources are extensive, and technical process is simple, and process conditions are loose, and production cost is low, and is with short production cycle, and energy consumption is low, is beneficial to the popularization and the use of technology.
Description of drawings
Accompanying drawing 1 chromatographic column method test evaluation device
1, sewage water tank; 2, stop valve; 3, peristaltic pump; 4, flowmeter; 5, adsorption column; 6, stop valve.
The specific embodiment
Below by embodiment technical scheme of the present invention is described in further detail.But be not limited thereto.
The sodium bentonite moisture content that is adopted in the embodiment of the invention is 16.5%, and cation exchange capacity is 106me/100g; The purity of organic modifiers is respectively two hydrogenated-tallow group alkyl dimethyl ammonium chlorides 74.4%; N-oleoyl N methyl taurine sodium 19%; Diethyl phthalate 99%; Polyoxyethylene sorbitan mono laurate fat (polysorbas20) 99%.
1, get the raw materials ready according to following composition and weight:
Sodium bentonite 1.20kg
Two hydrogenated-tallow group alkyl dimethyl ammonium chloride 0.81kg
Deionized water 0.80kg
Wherein, the mol ratio of the cation exchange capacity of two hydrogenated-tallow group alkyl dimethyl ammonium chlorides and sodium bentonite is 1: 1.
2, whole sodium bentonites, two hydrogenated-tallow group alkyl dimethyl ammonium chloride and deionized water are added in the kneader successively mix, making the water content in the mixture is 28.5%, controls mixing temperature simultaneously at 60 ℃, continues mixed 30 minutes;
3, blended stock is joined in the feeding hopper of double screw extruder (model SHJ-20, Nanjing Jieya Extruding Equipment Co., Ltd.), be extruded into bar by double screw extruder;
4, the strip extrudate is carried out drying under 50 ℃, make its water content reach 10%;
5, the strip extrudate of drying is pulverized, obtained granular dephosphorization denitrogenation adsorbent of the present invention.
1, get the raw materials ready according to following composition and weight:
Sodium bentonite 1.20kg
Two hydrogenated-tallow group alkyl dimethyl ammonium chloride 0.48kg
Deionized water 0.25kg
Wherein, the mol ratio of the cation exchange capacity of two hydrogenated-tallow group alkyl dimethyl ammonium chlorides and sodium bentonite is 0.6: 1.
2, whole sodium bentonites, two hydrogenated-tallow group alkyl dimethyl ammonium chloride and deionized water are added in the kneader successively mix, making the water content in the mixture is 13%, controls mixing temperature simultaneously at 90 ℃, continues mixed 60 minutes;
Except dried water content is 8%, all the other steps are with embodiment 1.
1, get the raw materials ready according to following composition and weight:
Sodium bentonite 1.20kg
N-oleoyl N methyl taurine sodium 1.46kg
Deionized water 2.48kg
Wherein, the mol ratio of the cation exchange capacity of N-oleoyl N methyl taurine sodium and sodium bentonite is 0.8: 1.
2, whole sodium bentonites, N-oleoyl N methyl taurine sodium and deionized water are added in the kneader successively mix, making the water content in the mixture is 48.2%, controls mixing temperature simultaneously at 60 ℃, continues mixed 5 minutes;
All the other steps are with embodiment 1.
1, get the raw materials ready according to following composition and weight:
Sodium bentonite 1.20kg
Diethyl phthalate 0.20kg
Deionized water 0.35kg
Wherein, the mol ratio of the cation exchange capacity of diethyl phthalate and sodium bentonite is 1.2: 1.
2, whole sodium bentonites, diethyl phthalate and deionized water are added in the kneader successively mix, making the water content in the mixture is 20%, controls mixing temperature simultaneously at 50 ℃, continues mixed 60 minutes;
All the other steps are with embodiment 1.
1, get the raw materials ready according to following composition and weight:
Sodium bentonite 1.20kg
Polyoxyethylene sorbitan mono laurate fat 0.66kg
Deionized water 1.24kg
Wherein, the mol ratio of the cation exchange capacity of polyoxyethylene sorbitan mono laurate fat and sodium bentonite is 0.5: 1.
2, whole sodium bentonites, polyoxyethylene sorbitan mono laurate fat and deionized water are added in the kneader successively mix, making the water content in the mixture is 40%, controls mixing temperature simultaneously at 70 ℃, continues mixed 45 minutes;
All the other steps are with embodiment 1.
Reference examples
Adopt commercially available cocoanut active charcoal (iodine number 〉=1000mg/g) routine in contrast.
The dephosphorization denitrogenation of the water body that experimental example 1 blue-green algae pollutes
1) water sampling
Get the Taihu Lake water sample in multiple period of blue-green algae and location with sample bucket, place respectively in 6 square tanks of 50cm * 50cm.Left standstill 1 hour, and made the blue-green algae in the water sample reply distribution situation under its nature.
2) water sample is observed, monitoring
The Taihu Lake water sample of taking from multiple period of blue-green algae and location is tangible blue-green, and surperficial blue-green algae Guinier-Preston zone thickness reaches 1cm; Tangible suspension blue-green algae aggregation can be seen in the centre; A small amount of suspended impurity and bed mud are sunken to bottom of gullet.Whole water sample muddiness is opaque.The testing result of the pH value of former water water sample, turbidity, dissolved oxygen, total phosphorus, total nitrogen and algae granule number sees Table 1.
3) spray except that algae
Get sorbing material 280 grams (cross 100 orders, particle diameter is less than 165um) and the reference examples active carbon 280g of embodiment 1-5 preparation, evenly be sprayed on the water sample surface by duster.
Sorbing material of the present invention is slowly sunk by the surface, is adsorbed on the blue-green algae aggregation behind the contact blue-green algae aggregation, makes aggregation increase weightening finish, and aggregation gathers together and forms bigger aggregation.Use after 2 minutes, blue-green algae aggregation quantity increases, and volume increases, and weight increases, and slowly sinks.Handle after 17 hours, pH value, turbidity, total phosphorus and the total nitrogen of test water sample, testing result sees Table 1.
The pH value of water sample adopts " the mensuration glass electrode method of GB 6920-86 water pH value " to measure.
The turbidity of water sample adopts " mensuration of DL/T 809-202 water quality-turbidity " to measure.
The total phosphorus of water sample adopts " the mensuration ammonium molybdate AAS of GB 11893-89 water quality total phosphorus " to measure.
The total nitrogen of water sample adopts " the mensuration alkalescence alkaline potassium per-sulfate digestion ultraviolet spectrophotometry of GB/T 11894-1989 water quality total nitrogen " to measure.
The dephosphorization denitrogenation testing result of table 1 blue algae polluted water body
| The pH value | Turbidity NTU | Total phosphorus (mg/L) | Total nitrogen (mg/L) | Total tp removal rate (%) | Nitrogen removal rate (%) | |
| Sewage | ??8.1 | ??150 | ??0.797 | ??7.83 | ??- | ??- |
| |
??8.6 | ??23.3 | ??0.195 | ??2.81 | ??75.5 | ??64.1 |
| |
??8.5 | ??25.9 | ??0.280 | ??3.81 | ??64.9 | ??51.3 |
| |
??8.6 | ??22.7 | ??0.237 | ??3.02 | ??70.3 | ??61.4 |
| |
??8.7 | ??24.2 | ??0.253 | ??3.63 | ??68.3 | ??53.6 |
| |
??8.9 | ??25.7 | ??0.327 | ??4.02 | ??59.0 | ??48.7 |
| Reference examples | ??8.0 | ??19.7 | ??0.600 | ??6.42 | ??24.7 | ??18.0 |
Experimental result shows that sorbing material of the present invention is big to the adsorption capacity of nitrogen phosphorus, removes by the efficient height of the nitrogen phosphorus in the blue algae polluted water body, and total tp removal rate reaches 75.5%, and nitrogen removal rate reaches 64.1%.
The chromatographic column method dephosphorization denitrogenation test of experimental example 2 sewage
By shown in Figure 1 be 3.0cm (the high 28cm of post at diameter, in 18 chromatographic columns of PVC material radius 1.5cm), sorbing material 100 gram and the reference examples active carbon 100g that add embodiment 1-5 preparation respectively, city domestic sewage, chemical plant sewage, the dyestuff factory sewage of 80ml are pumped into the chromatographic column from the chromatographic column upper end respectively, the sewage absorption time of staying is 10 minutes, the nitrogen and the phosphorus content of test water outlet the results are shown in Table 2,3,4.
Table 2 city domestic sewage dephosphorization denitrogenation testing result
| Total phosphorus, (mg/L) | Total nitrogen, (mg/L) | Total tp removal rate, (%) | Nitrogen removal rate, (%) | |
| Municipal sewage | ??1.12 | ??16.5 | ??- | ??- |
| Total phosphorus, (mg/L) | Total nitrogen, (mg/L) | Total tp removal rate, (%) | Nitrogen removal rate, (%) | |
| |
??0.023 | ??8.27 | ??97.9 | ??49.9 |
| |
??0.120 | ??9.45 | ??89.3 | ??42.7 |
| |
??0.077 | ??8.76 | ??93.1 | ??46.9 |
| |
??0.236 | ??9.39 | ??78.9 | ??43.1 |
| |
??0.344 | ??10.08 | ??69.3 | ??38.9 |
| Reference examples | ??0.797 | ??13.2 | ??28.8 | ??20.0 |
Table 3 chemical plant sewage dephosphorization testing result
| Total phosphorus, (mg/L) | Total tp removal rate, (%) | |
| Chemical plant sewage | ??359 | ??- |
| |
??43.9 | ??87.8 |
| |
??74.7 | ??79.2 |
| |
??63.5 | ??82.3 |
| |
??85.8 | ??76.1 |
| |
??117.8 | ??67.2 |
| Reference examples | ??298.0 | ??17.0 |
Table 4 dyestuff factory sewage water denitrification testing result
| Total nitrogen, (mg/L) | Nitrogen removal rate, (%) | |
| Dyestuff factory sewage | ??486 | |
| |
??261 | ??46.3 |
| |
??297 | ??38.9 |
| Total nitrogen, (mg/L) | Nitrogen removal rate, (%) | |
| |
??280 | ??42.3 |
| |
??284 | ??41.5 |
| |
??303 | ??37.7 |
| Reference examples | ??412 | ??15.2 |
Testing result shows: the dephosphorization denitrogenation sorbing material that adopts the present invention to prepare can be removed the nitrogen phosphorus in the sewage effectively, technology is simple, easy to operate, sorbing material is big to the nitrogen phosphorus adsorption capacity in the sewage, removal efficient height, wherein the total tp removal rate to city domestic sewage reaches 69.3-97.9%, and nitrogen removal rate reaches 38.9-42.3%; Total tp removal rate for chemical plant sewage reaches 67.2-87.8%; Nitrogen removal rate for dyestuff factory sewage reaches 37.7-46.3%.
Claims (10)
1. a preparation method who is used for the sorbing material of dephosphorization denitrogenation comprises step: clay mineral material, organic modifiers and appropriate amount of deionized water are mixed, by organic modifiers the clay mineral material is carried out organically-modified processing.
2. preparation method as claimed in claim 1, the mol ratio that it is characterized in that the commutative capacity of cation of described organic modifiers and clay mineral material is 0.4-1.2: 1.
3. as the preparation method of sorbing material as described in the claim 2, the mol ratio that it is characterized in that the commutative capacity of cation of described organic modifiers and clay mineral material is 0.6-1.0: 1.
4. as the arbitrary described preparation method of claim 1 to 3, described mixed process may further comprise the steps:
(1) clay mineral material, organic modifiers and appropriate amount of deionized water are mixed and stir, wherein control the 12-50% that deionized water content is the mixture total weight amount;
(2) with the clay mineral material, organic modifiers and the deionized water mixture that mix under 50-90 ℃, stirring reaction 1-60 minute;
(3) with reacted blended stock drying, promptly.
5. as the preparation method of the arbitrary described sorbing material of claim 1 to 3, it is characterized in that described clay mineral material is selected from one or more in bentonite, montmorillonite, illite, attapulgite, zeolite, diatomite and the vermiculite; Described organic modifiers is selected from a kind of in cationic surfactant, anion surfactant, zwitterionic surfactant, the non-ionic surface active agent.
6. the preparation method of sorbing material as claimed in claim 5 is characterized in that described cationic surfactant is selected from one or more in chlorination or bromination dodecyl trimethyl ammonium, myristyl dimethyl benzyl ammonium, cetyltrimethyl ammonium, octadecyl trimethyl ammonium, two-octadecyl Dimethyl Ammonium, cetyl pyridinium, the myristyl pyridine; Described anion surfactant is selected from one or more in neopelex, the N-oleoyl N methyl taurine sodium; Described amphoteric surfactant is a diethyl phthalate; Described non-ionic surface active agent is selected from one or more in OPEO, Brij-721, the polyoxyethylene sorbitan mono laurate fat.
7. a dephosphorization denitrogenation sorbing material is characterized in that according to being prepared from as the arbitrary described preparation method of claim 1-6.
8. a utilization is characterized in that sorbing material is evenly sprayed in water body as the method for sorbing material purifying water body as described in the claim 7, and the consumption of wherein said sorbing material is the described sorbing material that 5-1200g is sprayed in every square metre of waters.
9. the utilization method of purifying waste water as sorbing material as described in the claim 7, it is characterized in that described sorbing material to contact and make phosphorus and nitrogen in the sorbing material absorption sewage that the consumption of wherein said sorbing material is the described sorbing material that every liter of sewage uses 1000-1300g with sewage.
10. sorbing material is denitrogenated in a dephosphorization, it is characterized in that described sorbing material to the removal effect of phosphorous nitric wastewater is: total tp removal rate is more than 67%, and nitrogen removal rate is more than 37%.
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