CN105664877A - Heavy metal wastewater composite adsorbent and preparation method thereof - Google Patents
Heavy metal wastewater composite adsorbent and preparation method thereof Download PDFInfo
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- B01J20/0203—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of metals not provided for in B01J20/04
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- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention discloses a heavy metal wastewater composite adsorbent and a preparation method thereof. The heavy metal wastewater composite adsorbent is composed of the following raw materials in parts by weight: 20-30 parts of zeolite, 20-24 parts of resorcinol, 0.5-0.9 part of triphenylphosphine, 8-12 parts of furfural, 1.0-2.0 parts of humic acid, 0.8-1.2 parts of triethylene diamine, 3.0-5.0 parts of methyl cellulose, 2.0-4.0 parts of sodium dodecyl sulfonate, 3.0-6.0 parts of a graphene nano layer/MnO2 composite, and 5.0-10.0 parts of a chitosan-graphene composite material. The heavy metal wastewater composite adsorbent has the beneficial effects: (1) an aerogel material for wastewater treatment has the advantages of large pore size, stable structure, and easy adsorption of heavy metal ions in wastewater; (2) the aerogel material for wastewater treatment has good adsorption efficiency and large adsorption capacity on the heavy metal ions in the wastewater; and (3) the aerogel material for wastewater treatment has the advantages of simple production process, low cost, safety, environmental protection, and higher market application prospect.
Description
Technical field
The invention belongs to field of Environment Protection, be specifically related to a kind of heavy metal containing sewage compound adsorbent and preparation method thereof.
Background technology
Aeroge is a kind of disperse medium is that the gel rubber material of gas, solid-phase and pore structure are nanometer scale. Due to the uniqueness in its structure, aeroge shows a lot of unique character: aeroge is the solid material that density is minimum in the world at present, and density can be low to moderate 0.002g cm-3; Aeroge is the solid material that thermal conductivity is minimum in the world at present, and room temperature in vacuo thermal conductivity can reach 0.001W m-1·K-1; The refractive index of silica aerogel continuously adjustabe within the specific limits; The unique texture of aeroge and character make it show good using value in a lot of fields.
In the fast development process of China's economy and industrial technology, the environmental problem brought increasingly comes into one's own, and sewage treating material has become as the important component part in sewage disposal technology, is similarly subjected to the concern of every field; And the kind being currently used for the aerogel material of sewage disposal lacks, greatly limit the selection of sewage treating material, therefore, it is a kind of good suitable in having heavy metal ions in wastewater adsorption efficiency of sewage disposal to develop, adsorbance is big, the aerogel material of excellent in mechanical performance, to abundant sewage treating material, promotes that the development of sewage disposal is significant.
Summary of the invention
The object of the invention: providing a kind of heavy metal containing sewage compound adsorbent, it is good to heavy metal ions in wastewater adsorption efficiency, and adsorbance is big, and stabilized structure, low production cost, range of application is wide, provides more for sewage disposal and selects.
The technical solution used in the present invention: in order to solve the problems referred to above, it is provided that a kind of heavy metal containing sewage compound adsorbent, is made up of in units of weight portion following raw material: zeolite 20-30; Resorcinol 20-24; Triphenylphosphine 0.5-0.9; Furfural 8-12; Humic acid 1.0-2.0; Triethylene diamine 0.8-1.2; Methylcellulose 3.0-5.0; Dodecyl sodium sulfate 2.0-4.0; Graphene nano layer/MnO2 complex 3.0～6.0; Chitosan-graphene composite material 5.0～10.0.
Preferably, for the compound adsorbent of sewage disposal, it is made up of in units of weight portion following raw material: zeolite 25; Resorcinol 22; Triphenylphosphine 0.7; Furfural 10; Humic acid 1.5; Triethylene diamine 1.0; Methylcellulose 4.0; Dodecyl sodium sulfate 3.0; Graphene nano layer/MnO2 complex 5.0; Chitosan-graphene composite material 8.0.
The preparation method of above-mentioned a kind of heavy metal containing sewage compound adsorbent, comprises the following steps:
Step 1: by zeolite via calcined by rotary kiln 1-2h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 5-10rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10～20 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs and both obtains heavy metal containing sewage compound adsorbent.
Preferred a kind of heavy metal containing sewage compound adsorbent, also includes cross-linked rectorite 3.0～7.0 weight portion.
Above-mentioned steps 8 is specially in the deionized water that cross-linked rectorite, graphene nano layer/MnO2 complex and chitosan-graphene composite material add its quality 10 times, cross-linked rectorite, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10～20 minutes by vibration of ultrasonic wave, obtained mixture A.
Preferred a kind of heavy metal containing sewage compound adsorbent, is characterized in that: also include drawing together bentonite 3.0～7.0 weight portion.
Above-mentioned steps 8 is specially in the deionized water that bentonite, graphene nano layer/MnO2 complex and chitosan-graphene composite material add its quality 10 times, bentonite, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10～20 minutes by vibration of ultrasonic wave, obtained mixture A.
Graphene nano layer (the GNS)/MnO2 complex (GNS/MnO2) heavy metal ion in removing sewage is effective, remove Ni2+, Pb2+ and Cu2+ in waste water three heavy metal species ion effect more preferably, GNS is as carrier, increase the specific surface area of adsorbent, MnO2 plays main adsorption, after reusing for 5 times, the absorbability of GNS/MnO2 can also return to 91%, has good regeneration capacity.
Chitosan-graphene composite material has bigger specific surface area and unique meso-hole structure, and the double helical structure of chitosan-graphene composite material, the electrostatic interaction between chitosan and Graphene, hydrogen bond action and Van der Waals force all enhance the removal ability to metal ion.
Cross-linked rectorite is the cation exchange property utilizing Rectorite, select cross-linking agent such as polymerization hydroxy metal cation or oxide etc., make the inflatable interbed of Rectorite be crosslinked pillared the opening of agent and obtain bigger interlamellar spacing, improve the performance of natural accumulation supporting stone. Cross-linked rectorite Stability Analysis of Structures, not expanding, have bigger specific surface area, ion exchange capacity and micropore size and have the features such as Heat stability is good, surface acidity are strong, absorbability increases more than 70%, there is bigger layer thickness, be catalyst and the adsorbent of a kind of excellent performance.
Bentonite (bentonite) is the clay mineral that one is main component with montmorillonite (montmorillonite). Its chemical composition is aluminosilicate, and chemical formula is Al2O3 4SiO2 3H2O. The unit cell of microstructure is made up of two Si2O tetrahedron wafers and Al2O or the Al2OH octahedron wafer clipped between them, and bentonite has stronger adsorptivity and ion exchangeable.
Principles of the invention: the tridimensional network hole of aeroge is less, capillarity is obvious, and in application process, gas-liquid interface tension force easily makes pore space structure cave in, and dry after-contraction is obvious; Zeolite is the aluminium silicate mineral of a kind of moisture calcium, sodium and barium, potassium, the internal structure of its uniqueness is to be basic structural unit by the aluminum-oxygen tetrahedron of silicon-oxy tetrahedron and replacement, and silicon-oxy tetrahedron and aluminum-oxygen tetrahedron more step by step component units ring, double base ring, many rings, cage constitute the crystallization polyhedron being mainly three dimensions rack-like structure, inside zeolite crystal, also exist that substantial amounts of arrangement is orderly, size uniformly, hole that is through each other and that be connected with the external world and duct; Utilize that zeolite pore is big, porosity is high and the feature of stabilized structure, with zeolite for carrier, big in conjunction with the adsorbance of aeroge tridimensional network, adsorption efficiency is high a little, overcome the shortcoming that aerogel structure easily subsides, aperture is little, prepare adsorbance big, adsorption efficiency is good, and the sewage disposal composite of stabilized structure; Very strong complexing power is possessed additionally by modified humic acid heavy metal ion, the absorbability of reinforced composite heavy metal ion, simultaneously in preparation process, processed by freezing gel, the structure of firm aeroge, improve the prepared height for sewage disposal and adsorb the adsorbing separation ability of compound adsorbent, reduce production cost.
Outstanding feature of the present invention and having the beneficial effects that:
(1) the aerogel material aperture for sewage disposal of the present invention is big, stabilized structure, it is easy to the absorption to the heavy metal ion in sewage; (2) aerogel material for sewage disposal of the present invention is good to heavy metal ions in sewage adsorption efficiency, and adsorbance is big; (3) present invention is simple for the production technology of the aerogel material of sewage disposal, with low cost, and safety and environmental protection has higher market application foreground.
Detailed description of the invention
Below according to specific embodiment, the present invention being further described, the following stated is only the preferred embodiment of the present invention, and under same principle, it is possible to make and being partially improved, these improvement fall within protection scope of the present invention:
Embodiment 1:
A kind of heavy metal containing sewage compound adsorbent, is made up of in units of weight portion following raw material: a kind of compound adsorbent for sewage disposal, it is characterized in that: be made up of in units of weight portion following raw material: zeolite 20; Resorcinol 20; Triphenylphosphine 0.5; Furfural 8; Humic acid 1.0; Triethylene diamine 0.8; Methylcellulose 3.0; Dodecyl sodium sulfate 2.0; Graphene nano layer/MnO2 complex 3.0; Chitosan-graphene composite material 5.0. Its preparation method is:
Step 1: by zeolite via calcined by rotary kiln 1h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 5rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs and both obtains heavy metal containing sewage compound adsorbent A.
Embodiment 2:
A kind of heavy metal containing sewage compound adsorbent, is made up of in units of weight portion following raw material: zeolite 30; Resorcinol 24; Triphenylphosphine 0.9; Furfural 12; Humic acid 2.0; Triethylene diamine 1.2; Methylcellulose 5.0; Dodecyl sodium sulfate 4.0; Graphene nano layer/MnO2 complex 6.0; Chitosan-graphene composite material 10.0.
Its preparation method is:
Step 1: by zeolite via calcined by rotary kiln 2h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 10rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 20 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs and both obtains heavy metal containing sewage compound adsorbent B.
Embodiment 3:
A kind of heavy metal containing sewage compound adsorbent, is made up of in units of weight portion following raw material: zeolite 25; Resorcinol 22; Triphenylphosphine 0.7; Furfural 10; Humic acid 1.5; Triethylene diamine 1.0; Methylcellulose 4.0; Dodecyl sodium sulfate 3.0; Graphene nano layer/MnO2 complex 5.0; Chitosan-graphene composite material 8.0.
Its preparation method is:
Step 1: by zeolite via calcined by rotary kiln 2h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 8rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 15 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs and both obtains heavy metal containing sewage compound adsorbent C.
Embodiment 4:
A kind of heavy metal containing sewage compound adsorbent, is made up of in units of weight portion following raw material: zeolite 25; Resorcinol 22; Triphenylphosphine 0.7; Furfural 10; Humic acid 1.5; Triethylene diamine 1.0; Methylcellulose 4.0; Dodecyl sodium sulfate 3.0; Graphene nano layer/MnO2 complex 5.0; Chitosan-graphene composite material 8.0; Cross-linked rectorite 5.0.
Its preparation method is:
Step 1: by zeolite via calcined by rotary kiln 2h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 8rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: cross-linked rectorite, graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, cross-linked rectorite, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 15 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs and both obtains heavy metal containing sewage compound adsorbent D.
Embodiment 5:
A kind of heavy metal containing sewage compound adsorbent, is made up of in units of weight portion following raw material: zeolite 25; Resorcinol 22; Triphenylphosphine 0.7; Furfural 10; Humic acid 1.5; Triethylene diamine 1.0; Methylcellulose 4.0; Dodecyl sodium sulfate 3.0; Graphene nano layer/MnO2 complex 5.0; Chitosan-graphene composite material 8.0; Bentonite 5.0.
Its preparation method is:
Step 1: by zeolite via calcined by rotary kiln 2h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 8rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: bentonite, graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, bentonite, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 15 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs and both obtains heavy metal containing sewage compound adsorbent E.
Table one: embodiment 1-5 sewage disposal performance data
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-described embodiment, and all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention. It should be pointed out that, for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a heavy metal containing sewage compound adsorbent, is characterized in that: be made up of in units of weight portion following raw material: zeolite 20-30; Resorcinol 20-24; Triphenylphosphine 0.5-0.9; Furfural 8-12; Humic acid 1.0-2.0; Triethylene diamine 0.8-1.2; Methylcellulose 3.0-5.0; Dodecyl sodium sulfate 2.0-4.0; Graphene nano layer/MnO2 complex 3.0～6.0; Chitosan-graphene composite material 5.0～10.0.
2. an a kind of heavy metal containing sewage compound adsorbent as claimed in claim 1, is characterized in that: be made up of in units of weight portion following raw material: zeolite 25; Resorcinol 22; Triphenylphosphine 0.7; Furfural 10; Humic acid 1.5; Triethylene diamine 1.0; Methylcellulose 4.0; Dodecyl sodium sulfate 3.0; Graphene nano layer/MnO2 complex 5.0; Chitosan-graphene composite material 8.0.
3. an a kind of heavy metal containing sewage compound adsorbent as claimed in claim 1, is characterized in that: also include cross-linked rectorite 3.0～7.0 weight portion.
4. an a kind of heavy metal containing sewage compound adsorbent as claimed in claim 1, is characterized in that: also include drawing together bentonite 3.0～7.0 weight portion.
5. a preparation method for a kind of heavy metal containing sewage compound adsorbent as claimed in claim 1 or 2, is characterized in that comprising the following steps:
Step 1: by zeolite via calcined by rotary kiln 1-2h, calcining heat is 700 DEG C, and rotary kiln rotating speed is 5-10rpm; Room temperature is naturally cooled to standby after calcining;
Step 2: the zeolite after the calcining obtained in step 1 is carried out pulverizing of milling, pulverizes and sieves to 200 orders;
Step 3: join in deionized water by resorcinol, triphenylphosphine, furfural, humic acid and triethylene diamine, is be stirred mixing, speed of agitator 900rpm, mixing time 10min at 70 DEG C in heating-up temperature;
Step 4: zeolite powder step 2 obtained and methylcellulose add in the mixed solution that step 3 obtains, and add and stir, and wherein heating and temperature control is between 60 DEG C-70 DEG C, speed of agitator 1000rpm, mixing time 15min;
Step 5: added by dodecyl sodium sulfate in the mixed liquor that step 4 obtains, carries out ultrasonic agitation, mixing time 30min between temperature 65 DEG C-70 DEG C;
Step 6: Homogeneous phase mixing liquid step 5 obtained is at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light; The freezing gel obtained is melted at 30 DEG C, after dissolving again at-10 DEG C of temperature, carry out freezing gel under the irradiation of ultraviolet light;
Step 7: gel step 6 obtained, at temperature 25 DEG C, carries out solvent exchange with dimethylcarbinol, and the gel after exchange is dried in a nitrogen environment, and baking temperature is 40 DEG C, obtains gel material block;
Step 8: graphene nano layer/MnO2 complex and chitosan-graphene composite material are added in the deionized water of its quality 10 times, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10～20 minutes by vibration of ultrasonic wave, obtained mixture A;
Step 9: the mixture A that gel material block step 7 obtained and step 8 obtain pulverizes, packs the compound adsorbent both obtaining sewage disposal.
6. the preparation method of an a kind of heavy metal containing sewage compound adsorbent as claimed in claim 3, it is characterized in that: described step 8 is specially in the deionized water that cross-linked rectorite, graphene nano layer/MnO2 complex and chitosan-graphene composite material add its quality 10 times, cross-linked rectorite, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10～20 minutes by vibration of ultrasonic wave, obtained mixture A.
7. the preparation method of an a kind of heavy metal containing sewage compound adsorbent as claimed in claim 4, it is characterized in that: described step 8 is specially in the deionized water that bentonite, graphene nano layer/MnO2 complex and chitosan-graphene composite material add its quality 10 times, bentonite, graphene nano layer/MnO2 complex and chitosan-graphene composite material were pulled out from deionized water and dry after 10～20 minutes by vibration of ultrasonic wave, obtained mixture A.
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