CN105776578A - Pesticide processing sewage treating agent and preparation method thereof - Google Patents
Pesticide processing sewage treating agent and preparation method thereof Download PDFInfo
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- CN105776578A CN105776578A CN201610373275.9A CN201610373275A CN105776578A CN 105776578 A CN105776578 A CN 105776578A CN 201610373275 A CN201610373275 A CN 201610373275A CN 105776578 A CN105776578 A CN 105776578A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
The invention discloses a pesticide processing sewage treating agent and a preparation method thereof.The pesticide processing sewage treating agent is prepared from, by weight, 60-80 parts of kieselguhr, 20-30 parts of activated sludge, 20-30 parts of porous gravel particles, 10-20 parts of vegetable carbon black, 25-30 parts of polystyrene resin, 15-25 parts of modified cassava starch, 5-10 parts of shaddock peel, 40-50 parts of potassium sorbate, 10-20 parts of xanthan gum, 5-10 parts of calcium sulfate, 15-25 parts of sugarcane cellulose, 0.1-0.5 part of xylose and 2-10 parts of microbial biofilms.According to the pesticide processing sewage treating agent and the preparation method thereof, the physical and chemical indexes of pesticide processing sewage can reach the GB18918-2002 standard, and the COD, the BOD and the content of SSs and metal ions can be effectively decreased; the treating processes are simple, the dosage is low, the treating effect is good, the properties are stable, the effluent quality is good, the water treating cost can be effectively reduced, and the good economic benefit and the wide social benefit are achieved.
Description
Technical field
The present invention relates to a kind of sewage-treating agent technical field, specifically a kind of pesticide processing sewage-treating agent and preparation method thereof.
Background technology
It is high that rural area processing waste water has organic concentration, and toxicity is big, and pollutant component is complicated, and recalcitrant substance is many, and water quality, the water yield often have the features such as fluctuation.The discharge of pesticide wastewater, directly contributes environment total phosphorus, ammonia nitrogen etc. and exceeds standard, make body eutrophication, algae amount reproduction.It addition, some is containing high-toxic pesticide and the discharge of wastewater of the compound such as phenol, cyanogen, subsoil water and surface water is polluted, welding, affect human health.
At present, processing pesticide processing sewage pollution problem has various methods such as physics, chemistry, biology, but to there is treatment effect the best more for physical method, handling rate instability problem；Biological method processing cost is too high, is not suitable for promoting the use of；More employing chemical methodes process sewage, but existing sewage-treating agent, and there is secondary pollution problem in its agent formulations, also can have a certain impact environment.
Summary of the invention
It is an object of the invention to provide a kind of pesticide processing sewage-treating agent and preparation method thereof, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: kieselguhr 60-80 part, activated sludge 20-30 part, porous rubble grain 20-30 part, plant white carbon black 10-20 part, polystyrene resin 25-30 part, modified tapioca starch 15-25 part, Pericarpium Citri grandis 5-10 part, potassium sorbate 40-50 part, xanthan gum 10-20 part, calcium sulfate 5-10 part, Caulis Sacchari sinensis fiber element 15-25 part, xylose 0.1-0.5 part, microbial biofilm 2-10 part；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction.
As the further scheme of the present invention: the granular size of described porous rubble grain is 30-100 mesh.
As the further scheme of the present invention: the molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at more than 600cp.
As the further scheme of the present invention: described microbial biofilm is that biofilm through more than 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 40%-60%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 12-24h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 160 DEG C-240 DEG C, and the time is 2h-6h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 3-5min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 2 DEG C-8 DEG C, obtain pesticide processing sewage-treating agent.
As the further scheme of the present invention: in step (1), the moisture content of mixture slurry is 50%.
As the further scheme of the present invention: the temperature that in step (3), mixed high temperature microwave processes is 200 DEG C, and the time is 4h.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention enables to the physical and chemical index of pesticide processing sewage and reaches GB18918-2002 standard, and effectively reduces COD, BOD, SS and metal ion content；Process technique is simple, and dosage is few, and treatment effect is good, stable performance, and effluent quality is good, can significantly reduce the cost that water processes, and has good economic benefit and social benefit widely.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.
Embodiment 1
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 60 parts of kieselguhr, activated sludge 20 parts, porous rubble grain 20 parts, plant white carbon black 10 parts, polystyrene resin 25 parts, modified tapioca starch 15 parts, Pericarpium Citri grandis 5 parts, potassium sorbate 40 parts, xanthan gum 10 parts, 5 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 15 parts, xylose 0.1 part, microbial biofilm 2 parts；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 40%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 12h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 160 DEG C, and the time is 2h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 3min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 2 DEG C, obtain pesticide processing sewage-treating agent.
Embodiment 2
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 60 parts of kieselguhr, activated sludge 20 parts, porous rubble grain 20 parts, plant white carbon black 15 parts, polystyrene resin 28 parts, modified tapioca starch 20 parts, Pericarpium Citri grandis 8 parts, potassium sorbate 45 parts, xanthan gum 15 parts, 8 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 20 parts, xylose 0.3 part, microbial biofilm 2 parts；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 40%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 12h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 160 DEG C, and the time is 2h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 3min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 2 DEG C, obtain pesticide processing sewage-treating agent.
Embodiment 3
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 70 parts of kieselguhr, activated sludge 25 parts, porous rubble grain 25 parts, plant white carbon black 15 parts, polystyrene resin 28 parts, modified tapioca starch 20 parts, Pericarpium Citri grandis 8 parts, potassium sorbate 45 parts, xanthan gum 15 parts, 8 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 20 parts, xylose 0.3 part, microbial biofilm 6 parts；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 50%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 24h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 200 DEG C, and the time is 4h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 4min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 6 DEG C, obtain pesticide processing sewage-treating agent.
Embodiment 4
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 80 parts of kieselguhr, activated sludge 30 parts, porous rubble grain 30 parts, plant white carbon black 20 parts, polystyrene resin 30 parts, modified tapioca starch 25 parts, Pericarpium Citri grandis 10 parts, potassium sorbate 50 parts, xanthan gum 20 parts, 10 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 25 parts, xylose 0.5 part, microbial biofilm 10 parts；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 60%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 12h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 200 DEG C, and the time is 2h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 3min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 2 DEG C-8 DEG C, obtain pesticide processing sewage-treating agent.
Embodiment 5
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 80 parts of kieselguhr, activated sludge 30 parts, porous rubble grain 30 parts, plant white carbon black 20 parts, polystyrene resin 30 parts, modified tapioca starch 25 parts, Pericarpium Citri grandis 10 parts, potassium sorbate 50 parts, xanthan gum 20 parts, 10 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 25 parts, xylose 0.5 part, microbial biofilm 10 parts；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 60%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 24h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 240 DEG C, and the time is 6h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 5min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 8 DEG C, obtain pesticide processing sewage-treating agent.
Comparative example 1
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 70 parts of kieselguhr, activated sludge 25 parts, porous rubble grain 25 parts, potassium sorbate 45 parts, xanthan gum 15 parts, 8 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 20 parts, xylose 0.3 part, microbial biofilm 6 parts；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 50%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with potassium sorbate, after piling up 24h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 200 DEG C, and the time is 4h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 4min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 6 DEG C, obtain pesticide processing sewage-treating agent.
Comparative example 2
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 70 parts of kieselguhr, activated sludge 25 parts, porous rubble grain 25 parts, potassium sorbate 45 parts, xanthan gum 15 parts, 8 parts of calcium sulfate, microbial biofilm 6 parts；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 50%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 24h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 200 DEG C, and the time is 4h, obtains mixtures II；
(4) then, mixtures II and xanthan gum, calcium sulfate carrying out mixing stirring pulping, every kind of raw material interpolation is all spaced 4min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 6 DEG C, obtain pesticide processing sewage-treating agent.
Comparative example 3
A kind of pesticide processing sewage-treating agent, according to the component of weight portion be: 70 parts of kieselguhr, activated sludge 25 parts, porous rubble grain 25 parts, plant white carbon black 15 parts, polystyrene resin 28 parts, modified tapioca starch 20 parts, Pericarpium Citri grandis 8 parts, potassium sorbate 45 parts, xanthan gum 15 parts, 8 parts of calcium sulfate, Caulis Sacchari sinensis fiber element 20 parts, xylose 0.3 part, microbial biofilm 6 parts；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction；The granular size of described porous rubble grain is 30-100 mesh；The molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at 600cp；Described microbial biofilm is that biofilm through 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
The preparation method of a kind of pesticide processing sewage-treating agent, concretely comprises the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 50%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 24h, obtain mixture I；
(3) then, carry out mixing stirring pulping with xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose by mixture I, obtain mixtures II；
(5) last, mixtures II and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 6 DEG C, obtain pesticide processing sewage-treating agent.
Test experience
Weigh embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5 and comparative example 1 respectively, comparative example 2, each 1kg of comparative example 3 join in the pesticide processing sewage of 20kg, temperature control is at 25 DEG C, it is stirred continuously 1h, the effect of the pesticide processing sewage-treating agent of the present invention, test result table 1 is tested respectively using COD, BOD, SS, metal ion content as evaluation criterion.
As can be seen here, the pesticide processing sewage-treating agent of the present invention, more preferable significance treatment effect compared with contrast groups, the present invention enables to the physical and chemical index of pesticide processing sewage and reaches GB18918-2002 standard (having reached more than one-level B standard), and effectively reduces COD, BOD, SS and metal ion content；Process technique is simple, and dosage is few, and treatment effect is good, stable performance, and effluent quality is good, can significantly reduce the cost that water processes, and has good economic benefit and social benefit widely.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the present invention.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (7)
1. a pesticide processing sewage-treating agent, it is characterized in that, according to the component of weight portion be: kieselguhr 60-80 part, activated sludge 20-30 part, porous rubble grain 20-30 part, plant white carbon black 10-20 part, polystyrene resin 25-30 part, modified tapioca starch 15-25 part, Pericarpium Citri grandis 5-10 part, potassium sorbate 40-50 part, xanthan gum 10-20 part, calcium sulfate 5-10 part, Caulis Sacchari sinensis fiber element 15-25 part, xylose 0.1-0.5 part, microbial biofilm 2-10 part；Described modified tapioca starch preparation method, comprise the following steps: tapioca is carried out gelatinizing, again by the mixing of the tapioca solution after gelatinizing, formaldehyde, fumaric acid and mannitol and ultrasonic Treatment, finally dropping monomeric vinyl chloride and acetic acid isopropyl butyl ester, obtains modified tapioca starch after constant temperature stirring reaction.
Pesticide processing sewage-treating agent the most according to claim 1, it is characterised in that the granular size of described porous rubble grain is 30-100 mesh.
Pesticide processing sewage-treating agent the most according to claim 1, it is characterised in that the molecular weight of described xanthan gum is at 200-400 ten thousand, and viscosity is at more than 600cp.
Pesticide processing sewage-treating agent the most according to claim 1, it is characterised in that described microbial biofilm is that biofilm through more than 48h cultivates gained on the activated carbon by Sporolactobacillus and Aeromonas.
5. the preparation method of the pesticide processing sewage-treating agent as described in claim 1-4 is arbitrary, it is characterised in that concretely comprise the following steps:
(1) first, add water in kieselguhr and activated sludge and obtain mixture slurry so that it is moisture content is 40%-60%, subsequently porous rubble grain is added, be crushed to the granule of 5-10mm diameter；
(2) then, granule is mixed homogeneously with plant white carbon black, polystyrene resin, modified tapioca starch, Pericarpium Citri grandis, potassium sorbate, after piling up 12-24h, obtain mixture I；
(3) secondly, mixture I carries out high temperature microwave process, and the temperature that high temperature microwave processes is 160 DEG C-240 DEG C, and the time is 2h-6h, obtains mixtures II；
(4) then, carrying out mixing stirring pulping by mixtures II and xanthan gum, calcium sulfate, Caulis Sacchari sinensis fiber element, xylose, every kind of raw material interpolation is all spaced 3-5min, obtains mixtures III；
(5) last, mixtures III and microbial biofilm are mixed and carry out micro encapsulation process, oven drying at low temperature at a temperature of being subsequently placed at 2 DEG C-8 DEG C, obtain pesticide processing sewage-treating agent.
The preparation method of pesticide processing sewage-treating agent the most according to claim 5, it is characterised in that in step (1), the moisture content of mixture slurry is 50%.
The preparation method of pesticide processing sewage-treating agent the most according to claim 5, it is characterised in that the temperature that in step (3), mixed high temperature microwave processes is 200 DEG C, and the time is 4h.
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| CN104355365A (en) * | 2014-10-31 | 2015-02-18 | 武汉钢铁(集团)公司 | Chromium-containing wastewater treatment method capable of realizing zero emission of pollutants |
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Application publication date: 20160720 |