CN104759156A - High-efficient deodorizing environmental-protective composite filter material prepared by blending melt-blown polypropylene with modified coconut shell active charcoal and used for sewage treatment and preparation method thereof - Google Patents

Abstract

The invention relates to a filter material used in sewage treatment and particularly relates to a high-efficient deodorizing environmental-protective composite filter material prepared by blending melt-blown polypropylene with modified coconut shell active charcoal and used for sewage treatment and preparation method thereof. The filter material is prepared from following raw materials, by weight: 4-5 parts of nano mesoporous aluminum oxide, 6-8 parts of polylactic acid, 10-13 parts of zeolite powder in 200-300 meshes, 30-35 parts of polypropylene, 2-3 parts of rosin, 1-2 parts of silane coupling agent KH-550, 5-8 parts of dried coffee residue micro powder, 12-16 parts of the coconut shell active charcoal in 300-400 meshes, 1-2 parts of polyvinyl alcohol, 30-40 parts of water, 1-1.2 parts of dodecyl sodium sulfate and 0.8-1 part of sodium citrate. In the invention, the modified conventional filter material is supported onto the modified polypropylene master batch melt-blown fiber thin filaments to prepare the filter material having a stereoscopic network structure. The filter material is higher in removal rate of pollutants, is significant in the deodorizing effect, is flexible in shape, is stable in performance, is corrosion and damage resistant and is environmental-protective and low-cost.

Description

Efficient deodorizing environmental protection composite filtering material of a kind of sewage disposal fusion-jetting polypropylene mixing modification cocoanut active charcoal and preparation method thereof

Technical field

The present invention relates to a kind of sewage disposal filtrate, be specifically related to efficient deodorizing environmental protection composite filtering material of a kind of sewage disposal fusion-jetting polypropylene mixing modification cocoanut active charcoal and preparation method thereof.

Background technology

Along with socioeconomic development, water pollutions increases the weight of day by day, pollutant component and content are difficult to control more, more and more higher to the requirement of water technology, original conventional treatment material obviously can not meet needed for production, improve the efficiency of water treatment, need to increase water quality from source treatment effect, and the serviceability improving filtrate the most efficient the most direct beyond doubt method, current use comparatively widely filtrate mainly contains quartz sand filter media, ANTHRACITE FILTER MEDIA, volcanic rock filtrate and string class filtrate etc., these filtrates in use each tool are good and bad, on the whole, improve the service efficiency of these filtrates, reduce production cost and be still the problem needing to solve.

Polypropylene melt-blown material is a kind of novel filtering material, mutually tangle between its fiber, structural void is little, spatially network structure, and product flexibility is strong, can make various shape as required, have that filtration resistance is low, filter effect is high, output is high, cost is low, the not advantage such as cracky, existing research shows that it is well worth doing at sewage treatment area, however the shaping filtrate intensity of simple polypropylene melt-blown and durability poor, the adsorption capacity of dirt is had much room for improvement.

Summary of the invention

The object of the invention is to, for the deficiency of current material, organic and inorganic to polypropylene melt blown filter materials and tradition filtrate is combined, maximize favourable factors and minimize unfavourable ones, there is provided a kind of using fusion-jetting polypropylene as carrier, load has the NEW TYPE OF COMPOSITE filtrate of the organic and inorganic filtrate of high efficiency of additive capability, and this filtrate production cost is low, absorption cuts dirty effective, highly efficient durable, does not produce secondary pollution.

To achieve these goals, the technical solution used in the present invention is as follows:

An efficient deodorizing environmental protection composite filtering material for sewage disposal fusion-jetting polypropylene mixing modification cocoanut active charcoal, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: mesoporous nano-alumina 4-5, PLA 6-8,200-300 order zeolite powder 10-13, polypropylene 30-35, rosin 2-3, silane resin acceptor kh-550 1-2, parchment coffee slag micro mist 5-8,300-400 order cocoanut active charcoal 12-16, polyvinyl alcohol 1-2, water 30-40, lauryl sodium sulfate 1-1.2, natrium citricum 0.8-1;

The preparation method of the efficient deodorizing environmental protection composite filtering material of described a kind of sewage disposal fusion-jetting polypropylene mixing modification cocoanut active charcoal, comprises following steps:

(1) first natrium citricum, lauryl sodium sulfate are dropped in water, be stirred to it to dissolve completely, subsequently parchment coffee slag micro mist, cocoanut active charcoal are dropped in solution and soak 3-4h, add polyvinyl alcohol, zeolite powder more subsequently, high-speed stirred mixing 40-50min, finally by gained mixed material heated-air drying, remove moisture completely, be broken into 300-400 order micro mist for subsequent use;

(2) polypropylene is mixed with rosin, PLA, mesoporous nano-alumina, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other residual components, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 200-220 DEG C through temperature, wherein orifice diameter is 50-100 μm, ejection filament stretch under the high velocity, hot air stream effect of 230-250 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.

Beneficial effect of the present invention:

The present invention utilizes containing natrium citricum, the aqueous solution of the compositions such as surfactant is to parchment coffee slag micro mist, traditional filtrate such as cocoanut active charcoal carries out immersion modification, improve the surface property of powder, the adsorption efficiency of pollutant is improved, the fiber filaments that modified complex filtrate micro mist is carried on the melt-blown preparation of modified polypropylene agglomerate is collected to obtain after being shaped having complicated, the material of multichannel dimensional network structure, this material lengthened the adsorption treatment time of dirt, higher to the removal rate of pollutant, the clean taste of its deodorizing is remarkably productive, simultaneously morphologically more flexible, according to environment for use and the product preparing variform and size can be required, in addition the mechanical performance of finished product also improves, stable performance, corrosion-resistant breakage, environmental protection is inexpensive.

Detailed description of the invention

Embodiment

Below with reference to embodiment, the present invention will be further described.

An efficient deodorizing environmental protection composite filtering material for sewage disposal fusion-jetting polypropylene mixing modification cocoanut active charcoal, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: mesoporous nano-alumina 4, PLA 6,200 order zeolite powder 12, polypropylene 32, rosin 2.5, silane resin acceptor kh-550 1.4, parchment coffee slag micro mist 6,400 order cocoanut active charcoal 14, polyvinyl alcohol 1.8, water 35, lauryl sodium sulfate 1, natrium citricum 0.8;

The preparation method of above-mentioned composite filtering material comprises following steps:

(1) first natrium citricum, lauryl sodium sulfate are dropped in water, be stirred to it to dissolve completely, subsequently parchment coffee slag micro mist, cocoanut active charcoal are dropped in solution and soak 3.5h, add polyvinyl alcohol, zeolite powder more subsequently, high-speed stirred mixing 45min, finally by gained mixed material heated-air drying, remove moisture completely, be broken into 400 order micro mists for subsequent use;

(2) polypropylene is mixed with rosin, PLA, mesoporous nano-alumina, stir in rear input double screw extruder and melt extrude granulation at 180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other residual components, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 220 DEG C through temperature, wherein orifice diameter is 80 μm, ejection filament stretch under the high velocity, hot air stream effect of 240 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.

The composite filtering material grammes per square metre prepared is 218g/m ²porosity is 83%, elongation at break is 325%, and fracture strength is 20.2MPa, and bending modulus is 33.4MPa, wear rate≤0.5%, product reaches 95%, COD removal rate to ammonia nitrogen in sewage removal rate and reaches 95%, and heavy metal removal rate reaches 84%, turbidity removal rate reaches 90%, and filter cycle, comparatively conventional material on average improved 65%.

Claims (2)

1. a sewage disposal efficient deodorizing environmental protection composite filtering material for fusion-jetting polypropylene mixing modification cocoanut active charcoal, is characterized in that: described composite filtering material is made up of the raw material of following weight portion: mesoporous nano-alumina 4-5, PLA 6-8,200-300 order zeolite powder 10-13, polypropylene 30-35, rosin 2-3, silane resin acceptor kh-550 1-2, parchment coffee slag micro mist 5-8,300-400 order cocoanut active charcoal 12-16, polyvinyl alcohol 1-2, water 30-40, lauryl sodium sulfate 1-1.2, natrium citricum 0.8-1.

2. the preparation method of the efficient deodorizing environmental protection composite filtering material of a kind of sewage disposal fusion-jetting polypropylene mixing modification cocoanut active charcoal as claimed in claim 1, is characterized in that, comprise following steps:

(1) first natrium citricum, lauryl sodium sulfate are dropped in water, be stirred to it to dissolve completely, subsequently parchment coffee slag micro mist, cocoanut active charcoal are dropped in solution and soak 3-4h, add polyvinyl alcohol, zeolite powder more subsequently, high-speed stirred mixing 40-50min, finally by gained mixed material heated-air drying, remove moisture completely, be broken into 300-400 order micro mist for subsequent use;

(2) polypropylene is mixed with rosin, PLA, mesoporous nano-alumina, stir in rear input double screw extruder and melt extrude granulation at 170-180 DEG C of temperature, obtain modified polypropylene agglomerate;

(3) step (1) gained material is mixed with modified polypropylene agglomerate and other residual components, drop in melt-blown non-woven former after stirring, melt is the meltblown beam spinneret orifice ejection of 200-220 DEG C through temperature, wherein orifice diameter is 50-100 μm, ejection filament stretch under the high velocity, hot air stream effect of 230-250 DEG C laggard enter receiving system, filament to be composite assembles shaping on the reception device, completely cooling after and get final product.