CN216273294U - Artificial graphene aquatic weed for treating brewing wastewater - Google Patents
Artificial graphene aquatic weed for treating brewing wastewater Download PDFInfo
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- CN216273294U CN216273294U CN202123018829.9U CN202123018829U CN216273294U CN 216273294 U CN216273294 U CN 216273294U CN 202123018829 U CN202123018829 U CN 202123018829U CN 216273294 U CN216273294 U CN 216273294U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The utility model relates to a graphene artificial aquatic plant for treating brewing wastewater, which structurally comprises: the graphene modified resin foam material comprises a graphene modified resin foam material, graphene modified non-woven fabrics and fluff, wherein the graphene modified non-woven fabrics are attached to the upper surface and the lower surface of the graphene modified resin foam material, and the fluff is positioned on the graphene modified non-woven fabrics; the graphene modified resin foam material is used as a filler, the graphene modified non-woven fabric is surrounded by the outer layer, the graphene is large in specific surface area and strong in adsorption capacity, and the graphene modified resin foam material has the advantages of no pollution, zero emission and low cost. Meanwhile, the service life of the artificial aquatic weed is prolonged, and the application prospect is wide.
Description
Technical Field
The utility model relates to the technical field of sewage treatment by graphene artificial aquatic weeds, and particularly relates to graphene artificial aquatic weeds for treating brewing wastewater.
Background
The brewing wastewater refers to industrial wastewater generated in the processes from liquor production to storage and aging, is rich in starch, reducing sugar, organic acid, esters, alcohols and the like, is difficult to degrade, and is a main cause of pollution. In addition, because the types of Chinese white spirits are various, the difference of raw materials, brewing process and main aroma components also causes the difference of brewing waste water to a great extent. At present, the water resource is seriously in short supply, the water pollution situation is increasingly severe, the wastewater discharge standard is more strict, and the brewing wastewater property is unique and different, so the brewing wastewater treatment needs to trace the source and integrate the control and the technology, and the wastewater pretreatment becomes an important research direction.
The artificial aquatic weed repairing technology belongs to a biological-ecological repairing technology, is still in a starting stage in the application of China, is a biomembrane carrier technology, adopts an acid-alkali-resistant, stain-resistant and highly flexible aquatic weed-imitating material, is beneficial to the formation and regeneration of a biomembrane by simulating a plant purification principle in sewage treatment and optimizing biological fillers, and is not limited by transparency, illumination and the like, so that the sewage treatment effect is greatly improved.
The materials used by the existing artificial aquatic plants mainly comprise synthetic fibers, carbon fibers and the like. The synthetic fiber is mainly prepared from high polymer materials such as polyvinyl chloride, vinylon, polyolefin and the like, has developed pores, more micropores, strong adsorption effect and excellent performance, and can effectively remove harmful pollutants.
The carbon fiber is prepared by mixing prepared asphalt, starch plastic and alpha-methyl cellulose, and has the functions of large adsorption area and degradability. In the existing artificial aquatic weeds, carbon fiber materials are mostly adopted, besides the adsorbability of carbon fibers, a compound microbial agent is added, a biological film is quickly formed on the surface of the artificial aquatic weeds, and the adsorption effect is improved. However, the artificial aquatic weed prepared by the carbon fiber material has the defects of high replacement frequency and short service life.
In summary, in the field of processing brewing wastewater by using artificial aquatic plants, the artificial aquatic plants with low cost, good adsorption effect and long service life cannot be provided at present, and the development is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an artificial aquatic plant with low cost, good adsorption effect and long service life is lacked when the brewing wastewater is treated. At present, researches find that the graphene material can be used for preparing artificial aquatic weeds.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides an artifical pasture and water of graphite alkene of making wine waste water treatment, which comprises a body, the body includes expanded material, the modified non-woven fabrics of graphite alkene and fine hair, the modified non-woven fabrics of graphite alkene is attached to expanded material's upper and lower surface, fine hair is located the modified non-woven fabrics of graphite alkene.
The body is cut into a plurality of rectangular strips connected at the lower part and rolled to form the string-shaped graphene artificial aquatic weed. The width of the rectangular strip is 5cm-12 cm.
Still include the fixed bolster, a plurality of rope form graphite alkene artifical pasture and water combination become graphite alkene artifical pasture and water curtain, it is a plurality of graphite alkene artifical pasture and water curtain sets up on the fixed bolster.
The graphene artificial aquatic weed curtain is composed of 6-10 string-shaped graphene artificial aquatic weeds.
The foaming material is PE, EVA or graphene modified resin foaming material.
The utility model has the beneficial effects that: the graphene artificial aquatic weed for treating the brewing wastewater is provided, the graphene modified resin foaming material is used as a filler, the outer layer of the graphene modified non-woven fabric is surrounded by the outer layer of the graphene modified resin foaming material, and the characteristics of large specific surface area and strong adsorption capacity of the graphene material are utilized, so that the graphene artificial aquatic weed has the advantages of no pollution, zero emission, low cost and recyclability. According to the utility model, the graphene aquatic weeds are prepared into the graphene modified foaming material and the graphene modified non-woven fabric, so that the surface roughness of the artificial aquatic weeds can be enhanced, the contact area between microorganisms and the artificial aquatic weeds can be increased, the film hanging time can be shortened, and the adsorption effect is better. In addition, due to the excellent toughening property of the graphene, the graphene artificial aquatic weed has higher mechanical strength, floats in a water body, is impact-resistant, has strong stability and has longer service life than the common artificial aquatic weed. According to the graphene artificial aquatic weed, other auxiliary equipment is not required to be additionally arranged, the polyethylene is used as the fixing support to form a stand structure, the bolt device is adopted at the joint, the artificial aquatic weed can be conveniently placed and maintained and managed in the later period, and the economical feasibility is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a structural diagram of graphene artificial aquatic plants for treating brewing wastewater, the structure including: 1. 2, preparing a graphene modified resin foaming material, 2, preparing graphene modified non-woven fabric, 3 and fluffs; the graphene modified non-woven fabric is attached to the upper surface and the lower surface of the graphene modified resin foam material, and the fluff is located on the graphene modified non-woven fabric;
fig. 2 is a flow chart of preparing artificial aquatic weeds, in which the graphene artificial aquatic weeds are cut, combined and rolled to obtain string-shaped graphene artificial aquatic weeds;
fig. 3 shows a graphene artificial float grass curtain composed of graphene artificial float grass, in which a plurality of string-shaped graphene artificial float grass are combined to form the graphene artificial float grass curtain;
the fixed knot that fig. 4 shows is artifical pasture and water curtain of graphite alkene constructs the sketch map, and the artifical pasture and water curtain of graphite alkene is fixed on the support, can correspond on a plurality of supports on the pallet and place the artifical pasture and water curtain of a plurality of graphite alkene.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
The graphene artificial aquatic plant for treating the brewing wastewater in the preferred embodiment of the utility model is shown in figure 1;
the utility model mainly develops an artificial waterweed for purifying water quality aiming at brewing wastewater, because of the particularity of the brewing industry, the brewing wastewater is different from impurities in other domestic sewage or other polluted wastewater, the existing artificial waterweed is adopted to have a common impurity removal effect, and the existing artificial waterweed is short in service life and not beneficial to long-term use. In the pedigree of Chinese white spirit, there are different types of white spirit such as Maotai-flavor type, Luzhou-flavor type, rice-flavor type, Feng-flavor type, sesame-flavor type, fermented soybean-flavor type, super-flavor type, white spirit and dry flavor type, mixed flavor type and strongly fragrant flavor type, and the preparation method of each type of white spirit is different, and COD, ammonia nitrogen, total nitrogen and total phosphorus in the produced wastewater are also different. However, the sewage treatment plant has requirements on the water inlet of the brewing wastewater, and brewing enterprises can discharge the brewing wastewater into the sewage treatment plant for treatment only after the brewing wastewater reaches corresponding indexes after pretreatment. Wherein the requirements are as follows: the discharge limit of the chemical oxygen demand in the sewage is 40mg/L, the discharge limit of the ammonia nitrogen is 2.0mg/L, and the discharge limit of the total phosphorus is 0.4 mg/L.
In order to achieve the treatment effect of the brewing wastewater, the utility model provides a preparation method of graphene artificial aquatic weeds for treating the brewing wastewater, which comprises the following steps:
a. mixing graphene oxide and polypropylene according to a weight ratio of 0.1-5: 100, mixing to obtain graphene modified polypropylene; preparing graphene modified polypropylene, a reaction auxiliary agent and an initiator according to a weight ratio of 100: 0.4-60: 0.01-10, melting at the temperature of 150-260 ℃, and performing extrusion molding by using a double-screw extrusion device to obtain a foamed polypropylene material;
b. adding graphene into the aqueous dispersion of graphene oxide, and dispersing by using an emulsification homogenizer to obtain a graphene oxide dispersion; placing the dispersion liquid in a hydrothermal reaction kettle, reacting for 1-3h at the temperature of 150-;
c. b, mixing the graphene composite additive obtained in the step b with polypropylene according to a weight ratio of 1-10: 100, premixing, and continuously preparing a graphene modified non-woven fabric 2 with fluff 3 through melt-blowing equipment;
d. and (c) respectively bonding a layer of graphene modified non-woven fabric 2 prepared in the step (c) on the upper surface and the lower surface of the foaming material obtained in the step (a) to prepare the thin-rope-shaped graphene artificial aquatic weed.
The utility model also provides the graphene artificial aquatic weed prepared by the method, and the structure of the graphene artificial aquatic weed comprises: modified resin expanded material 1 of graphite alkene, the modified non-woven fabrics 2 of graphite alkene and fine hair 3, the modified non-woven fabrics 2 of graphite alkene is attached to the upper and lower surface of modified resin expanded material 1 of graphite alkene, fine hair 3 is located the modified non-woven fabrics 2 of graphite alkene.
The special structure of the graphene artificial aquatic weed of the utility model enables the contact surface of the artificial aquatic weed and the wastewater to be larger, can bear aerobic bacteria, anaerobic bacteria, facultative aerobic (anaerobic) bacteria, protozoa and algae with higher density, and is more beneficial to treating main pollutants in the wastewater; the water in the wastewater pool is not in a static state, and the fluff 3 shape is more favorable for floating along with the water and accelerating the reaction (meaning similar to aeration), so the graphene artificial aquatic weed has better impurity removal effect and longer service life.
As shown in figure 2, the utility model also provides a use method of the graphene artificial waterweed for treating the brewing wastewater, the graphene artificial waterweed is combined into a graphene artificial waterweed curtain, the graphene artificial waterweed curtain is fixed on a polyethylene bracket and is placed in the wastewater for treating the brewing wastewater.
As shown in fig. 3-4, when in use, a stand fixing bracket is made of polyethylene, the polyethylene pipe has a linking function, and the size of the fixing bracket can be adjusted according to the size of a wastewater collecting pool in a brewing enterprise; a plurality of thin rope-shaped graphene artificial aquatic weeds are combined to form a graphene artificial aquatic weed curtain, 8 in the following specific embodiments are taken as examples, and actually 6 to 10 different thin rope-shaped graphene artificial aquatic weeds can be used to form the aquatic weed curtain, or more than two thin rope-shaped graphene artificial aquatic weeds can be used; then fixing the graphene artificial aquatic weed curtain on a bracket, wherein a plurality of graphene artificial aquatic weed curtains can be placed on the fixing bracket; a plurality of ropes are placed on the fixing support, and then the fixing support is placed in the brewing wastewater collecting pool, so that subsequent management and maintenance are facilitated.
According to the utility model, the graphene artificial aquatic weed adopts the graphene modified resin foaming material as the filler, and the graphene is one of the materials with the highest known strength and has good toughness, so that the durability can be enhanced and the service life can be prolonged by adopting the graphene modified resin foaming material as the filler; meanwhile, the weight can be reduced, and the floating in the water body is facilitated. The filler is not limited to the modified resin foaming material prepared by the method of the utility model, and can be replaced by other foaming materials with excellent performance, such as PE, EVA and the like.
The key point of the graphene aquatic weed is the preparation and use of the graphene modified non-woven fabric 2, so that in the preparation of the non-woven fabric, the graphene composite additive and the polypropylene slices are jointly used for preparing the modified non-woven fabric, and the polypropylene has excellent performances such as corrosion resistance, so that the artificial aquatic weed prepared by using the polypropylene as a raw material has good toughness and strength. Meanwhile, through a large amount of screening, the utility model discovers that when the weight ratio of the graphene composite additive to the polypropylene slices is set to be 1-10: the effect is best at 100 days, the content of the graphene composite additive is too low, the effects of toughening and strength increasing cannot be achieved, but the effect is better when the content is higher, and experiments show that the effect is opposite when the addition amount is too high.
The graphene artificial aquatic weed prepared by the method has a large specific surface area, and can bear aerobic bacteria, anaerobic bacteria, facultative aerobic (anaerobic) bacteria, protozoa and algae with higher density on one hand; on the other hand, the adsorption effect is good, the surface is rough, and the membrane (biomembrane) can be quickly hung, so that the aquatic weed system can work faster, and therefore, the removal effect of the weeds on impurities is better than that of other existing aquatic weeds. Meanwhile, due to the toughness and strength of the graphene reinforced material, the service life of the artificial aquatic weed is longer, and the service life of the artificial aquatic weed can reach 12-14 years; the existing method is about 8-10 years, and the improvement is 40%.
The following examples further illustrate specific embodiments of the present invention, but are not intended to limit the scope of the present invention to the examples.
Example 1 preparation of graphene Artificial waterweed for treatment of brewing wastewater by the method of the present invention
The specific operation steps are as follows:
a. firstly, uniformly mixing graphene oxide and polypropylene according to a ratio of 1:100, and mixing the graphene modified polypropylene, a reaction auxiliary agent and an initiator according to a ratio of 100: 30: 8, and uniformly mixing the raw materials together according to the weight ratio to obtain the raw material.
b. Mixing and melting the raw materials, and extruding and molding by using a double-screw extruder, wherein the temperature of a feeding section is set to be 195 ℃, the temperature of a reaction section is 210 ℃, the temperature of an extrusion section is 200 ℃, and the temperature of a machine head is 195 ℃. Obtaining the foamed polypropylene material.
c. Adding 10 parts of graphene into 50 parts by mass of aqueous dispersion of graphene oxide, and dispersing by using an emulsification homogenizer to obtain graphene oxide dispersion, wherein the mass concentration of the graphene is 4%.
d. And d, placing the dispersion liquid obtained in the step c into a hydrothermal reaction kettle, reacting for 2 hours at 180 ℃, cooling to room temperature, taking out the reactant, and drying to obtain the graphene composite additive.
e. And d, premixing the graphene composite additive obtained in the step d with polypropylene slices, and continuously preparing the graphene modified non-woven fabric 2 with fluff 3 through melt-blowing equipment. The mass ratio of the graphene-based composite additive to the polypropylene is 5: 100.
f. A layer of graphene modified non-woven fabric 2 with fluff 3 is bonded on the surface of the foaming material, and the graphene modified non-woven fabric is cut into a 5cm long thin rope-shaped graphene artificial aquatic weed (as shown in figures 1 and 2).
g. The 8 string-shaped graphene artificial aquatic weeds are combined into the graphene artificial aquatic weed curtain and fixed on the polyethylene bracket (as shown in fig. 3), and then the curtain can be put into use.
Example 2 preparation of graphene Artificial waterweed for treatment of brewing wastewater by the method of the present invention
The difference from the example 1 is that the cut long string-shaped graphene artificial aquatic weed is 10cm long.
Example 3 preparation of graphene Artificial waterweed for treatment of brewing wastewater by the method of the present invention
The difference from the example 1 is that the cut long string-shaped graphene artificial aquatic weed is 10cm long. The mass concentration of graphene is 2%.
Example 4 preparation of graphene Artificial waterweed for treatment of brewing wastewater by the method of the present invention
The difference from the example 1 is that the cut long string-shaped graphene artificial aquatic weed is 10cm long. The mass concentration of graphene is 3%.
Example 5 preparation of graphene Artificial waterweed for treatment of brewing wastewater by the method of the present invention
The difference from the example 1 is that the cut long string-shaped graphene artificial aquatic weed is 10cm long. The mass concentration of graphene is 5%.
Comparative example 1 preparation of graphene artificial aquatic weed treated with brewing wastewater without the method of the present invention
The difference from the example 1 is that the artificial aquatic weed prepared by the graphene Ackmann ecological base technology participates in the comparison of pollutant removal.
Comparative example 2 preparation of graphene Artificial waterweed for treatment of brewing wastewater without the method of the present invention
The difference from the embodiment 1 is that the graphene superfine three-dimensional fiber artificial aquatic weed is adopted to participate in the comparison of pollutant removal.
The artificial aquatic weeds prepared in examples and comparative examples were compared in terms of removal rate of the impurities from the wastewater, and the results are shown below.
The removal rate of the main pollutants in the waste water of the fermented glutinous rice by the artificial waterweeds with different forms is shown in table 1.
TABLE 1 comparison of the removal rates of the main pollutants in the wastewater from brewing white wine by artificial water plants of different forms
As can be seen from table 1: the removal rate of the main pollutants in the distilled spirit waste water by the graphene artificial aquatic weed prepared by the method disclosed by the utility model is superior to that of the existing artificial aquatic weed (the graphene acoman ecological base of the comparative example 1 and the graphene superfine three-dimensional fiber artificial aquatic weed of the comparative example 2), the adsorption effect can be influenced by the length of the graphene artificial aquatic weed, and the removal rate of the main pollutants in the distilled spirit waste water by 10cm artificial aquatic weed is superior to that of 5cm artificial aquatic weed.
And when the length of the graphene artificial aquatic weed is 10cm, the removal effect can be influenced by different graphene proportions. The following table 2 shows the influence of artificial waterweeds with different graphene ratios on the removal effect of main pollutants in the waste water of the fermented glutinous rice.
TABLE 2 comparison of the removal rates of the main pollutants in the wastewater from liquor brewing by artificial aquatic plants with different graphene ratios
The following table 3 shows the influence of artificial aquatic weeds with different graphene ratios on the removal effect of main pollutants in artificially prepared sewage.
TABLE 3 comparison of removal rates of main pollutants in artificially prepared sewage by artificial waterweeds with different graphene ratios
As can be seen from the data in tables 2 and 3: under the condition that the length of the graphene artificial aquatic weed is the same (10cm), the comprehensive removal effect of the pollutant is the best in example 4 (the graphene artificial aquatic weed with the mass concentration of 3% of graphene). The length of the cut long string-shaped graphene artificial aquatic weed can be 5-10 cm besides 10cm, and can be cut to be longer according to actual needs, such as 12cm, 13cm, 14cm and 15 cm.
The graphene artificial aquatic weed adopts a graphene modified resin foaming material as a filler, and the outer layer surrounds the graphene modified non-woven fabric 2. Compared with other schemes, the graphene artificial aquatic weed has excellent effect on removing pollutants in the polluted water body and has stronger removal capability on main pollutants in the brewing wastewater.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the utility model as defined in the appended claims.
Claims (6)
1. The utility model provides an artifical pasture and water of graphite alkene of making wine waste water treatment, includes the body, its characterized in that, the body includes expanded material, the modified non-woven fabrics of graphite alkene and fine hair, the modified non-woven fabrics of graphite alkene is attached to expanded material's upper and lower surface, fine hair is located the modified non-woven fabrics of graphite alkene.
2. The graphene artificial aquatic weed for treating brewing wastewater according to claim 1, wherein the body is cut into a plurality of rectangular strips connected at the lower part and rolled to form a string-shaped graphene artificial aquatic weed.
3. The graphene artificial aquatic weed for treating brewing wastewater according to claim 2, wherein the width of the rectangular strip is 5cm-12 cm.
4. The graphene artificial aquatic weed for treating brewing wastewater according to claim 2, further comprising a fixing support, wherein a plurality of string-shaped graphene artificial aquatic weeds are combined into a graphene artificial aquatic weed curtain, and the plurality of graphene artificial aquatic weed curtains are arranged on the fixing support.
5. The graphene artificial aquatic weed treated by the brewing wastewater according to claim 3, wherein the graphene artificial aquatic weed curtain is composed of 6-10 string-shaped graphene artificial aquatic weeds.
6. The graphene artificial aquatic weed for treating brewing wastewater according to claim 3, wherein the foaming material is PE, EVA or graphene modified resin foaming material.
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| CN202123018829.9U CN216273294U (en) | 2021-12-03 | 2021-12-03 | Artificial graphene aquatic weed for treating brewing wastewater |
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| CN202123018829.9U CN216273294U (en) | 2021-12-03 | 2021-12-03 | Artificial graphene aquatic weed for treating brewing wastewater |
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