CN108383175A - Slow release tablet and preparation method thereof for decentralized type sewage advanced treating - Google Patents
Slow release tablet and preparation method thereof for decentralized type sewage advanced treating Download PDFInfo
- Publication number
- CN108383175A CN108383175A CN201810122803.2A CN201810122803A CN108383175A CN 108383175 A CN108383175 A CN 108383175A CN 201810122803 A CN201810122803 A CN 201810122803A CN 108383175 A CN108383175 A CN 108383175A
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- Prior art keywords
- slow release
- release tablet
- type sewage
- advanced treating
- decentralized type
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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
- C02F1/00—Treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The present invention is provided to the slow release tablets of decentralized type sewage advanced treating, are made of PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE)；The invention further relates to the slow release tablet preparation method for decentralized type sewage advanced treating, including step S1, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) be sieved, obtain the raw material grain of 100 200 mesh grain sizes；S2, by mass fraction be 37 parts of PAC, 26 parts of stearic acid, 0.2 0.8 parts of calcium stearate, 0.3 0.7 parts polytetrafluoroethylene (PTFE) raw material grain mix；S3, uniform raw material grain is stirred to get using blender；S4, it is molded using molding die and by tabletting machine, tablet forming pressure is 75000N 80000N, obtains cylinder sheet tablet.After release, the tablet of failure is recyclable, supplements new raw material and prepares again, saves cost.The present invention effectively improves effluent index for decentralized type sewage advanced treating excellent effect；Slow release effect of the present invention is excellent simultaneously, saves manpower maintenance cost, is promoted and applied convenient for rural sewage treatment.
Description
Technical field
The present invention relates to advanced treatment of wastewater medicaments, the more particularly, to slow release tablet of decentralized type sewage processing.
Background technology
The sanitary sewage amount that national rural area generates every year is more than 90 hundred million tons, it has also become the important sources of environmental pollution.Rural area
The distributings point source of pollution coverage such as sanitary sewage is wide, and distribution is scattered, and randomness is stronger, and water quality and quantity amplitude of variation is big,
And sewage composition is complicated.
Sanitary sewage often contains a large amount of phosphorus, and algae excessive propagation can be caused by being discharged into water body, led to body eutrophication, made
Water quality deterioration.In sanitary sewage, 80% phosphorus comes from body discharges, remaining comes from washes and exemplary food waste.Wherein
Powdered Detergent Containing Phosphate is the main source of life phosphorus-containing wastewater.Phosphorus is the critical nutrients for causing body eutrophication.Water body is rich
Nutrient laden not only results in algae in water and overgrows, and oxygen content of water can be made drastically to decline, and influences the aquatiles such as fish
Existence.Body eutrophication shows as wawter bloom in lake, reservoir.In order to administer above-mentioned harm, must just reduce at sanitary sewage
The content of phosphorus is discharged in reason.
The treatment process of existing most of rural area equipment for treating decentralized domestic sewage use anaerobic-aerobic (AO) technique, one
Aspect biological phosphate-eliminating acts on very little, and water outlet phosphorus is difficult to up to standard；Also having in the prior art can ensure using electrolysis dephosphorization process
Water phosphorus qualified discharge, but it is suitable for mini-plant, the above energy consumption of 5T/d treating capacities is very high, and electrode plate loss is serious, uncomfortable
It closes and uses；If by the way of dosing dephosphorization, because medicament reaction efficiency is unable to control, burst size can not be pre- with release time
Estimate, generally need to additionally increase medicine storing pot and metering pump, and a worker need to be increased and carry out plant maintenance and medicament preparation daily,
Wide, the remote feature of distance for rural area distribution, so safeguards and brings additional equipment cost and manpower maintenance cost；Another party
Face, can not be lasting although reaction is rapid in conventionally employed dosing technique, needs to continue dosing using artificial or equipment, can not
Suitable for the distributed small-sized sewage treating system in rural area, and the indexs such as suspended matter, total phosphorus, floating oil, coloration are unable to reach state
Family's water process standard, can not accomplish water quality advanced processing；According to although the sewage disposal system processing effect of reverse osmosis membrane structure
Fruit is pretty good, but construction cost is high, and for rural area distribution small-sized sewage treating system, treating capacity is little, is badly in need of at present a kind of
The treatment of domestic sewage advanced tablet of slow release, and slow release effect more preferably tablet, to improve processing effluent quality standard.
Invention content
For overcome the deficiencies in the prior art, the purpose of the present invention is to provide for the slow of decentralized type sewage advanced treating
Patch.
The present invention is provided to the slow release tablets of decentralized type sewage advanced treating, by PAC, stearic acid, calcium stearate, poly- four
Vinyl fluoride forms, and the quality parts ratio of the slow release tablet each component for decentralized type sewage advanced treating is：
Further, the quality parts ratio of the slow release tablet each component for decentralized type sewage advanced treating is：
Further, the shape of the slow release tablet for decentralized type sewage advanced treating is cylinder sheet.
Further, a diameter of 80mm-120mm of the slow release tablet for decentralized type sewage advanced treating.
Further, a diameter of 100mm of the slow release tablet for decentralized type sewage advanced treating.
Further, the thickness of the slow release tablet for decentralized type sewage advanced treating is 40mm-60mm.
Further, the thickness of the slow release tablet for decentralized type sewage advanced treating is 50mm.
Slow release tablet for decentralized type sewage advanced treating prepares and recovery method, includes the following steps：
S1, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) are sieved respectively, obtain the raw material of 100-200 mesh grain sizes
Grain；
S2, by mass fraction be 3-7 parts PAC, 2-6 part stearic acid, 0.2-0.8 parts of calcium stearate, 0.3-0.7
The polytetrafluoroethylene (PTFE) raw material grain mixing of part；
After S3, the mixing of raw material grain, uniform raw material grain is obtained using blender stirring 30min；
S4, it is molded using molding die and by tabletting machine, tablet forming pressure is 75000N-80000N, is obtained
Cylinder sheet tablet.
Further, further include step S5：The tablet recycling that use is failed later, dries under 60 degrees celsius, grinds
It is sieved after mill, loss is than addition equivalent PAC raw materials grain and stearic acid starting material grain mixing by weight, then is made again by step S3 and S4
Standby slow release tablet.
Further, the forcing press briquetting pressure is 78500N；Single inlet amount in the step S4 is 180g-
240g。
Compared with prior art, the beneficial effects of the present invention are：
The present invention is provided to the slow release tablets of decentralized type sewage advanced treating, by PAC, stearic acid, calcium stearate, poly- four
Vinyl fluoride forms；It is prepared the invention further relates to the slow release tablet for decentralized type sewage advanced treating and recovery method, including step
Rapid S1, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) are sieved, obtain the raw material grain of 100-200 mesh grain sizes；S2, by quality
The stearic acid, 0.2-0.8 parts of calcium stearate, 0.3-0.7 parts of polytetrafluoroethylene (PTFE) raw material of PAC, 2-6 part that number is 3-7 parts
Grain mixing；S3, uniform raw material grain is stirred to get using blender；S4, it is molded using molding die and by tabletting machine,
Tablet forming pressure is 75000N-80000N, obtains cylinder sheet tablet.After release, the tablet of failure is recyclable, supplement
New raw material is prepared again, saves cost.The present invention effectively improves water outlet and refers to for decentralized type sewage advanced treating excellent effect
Mark；Slow release effect is excellent simultaneously, saves manpower maintenance cost, is promoted and applied convenient for rural sewage treatment.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, it is described in detail as after with presently preferred embodiments of the present invention below.The tool of the present invention
Body embodiment is shown in detail by following embodiment.
Specific implementation mode
In the following, in conjunction with specific implementation mode, the present invention is described further, it should be noted that is do not collided
Under the premise of, new embodiment can be formed between various embodiments described below or between each technical characteristic in any combination.
In embodiment 1, it is used for the slow release tablet of decentralized type sewage advanced treating, by PAC, stearic acid, calcium stearate, is gathered
Tetrafluoroethene forms, and the quality parts ratio of the slow release tablet each component for decentralized type sewage advanced treating is：
Specifically, the slow release tablet for decentralized type sewage advanced treating prepares and recovery method, include the following steps：
S11, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) are sieved respectively, obtain the raw material of 100-200 mesh grain sizes
Grain；
S12, by mass fraction be 3-7 parts PAC, 2-6 part stearic acid, 0.2-0.8 parts of calcium stearate, 0.3-0.7
The polytetrafluoroethylene (PTFE) raw material grain mixing of part；
After S13, the mixing of raw material grain, uniform raw material grain is obtained using blender stirring 30min；
S14, it is molded using molding die and by tabletting machine, tablet forming pressure is 75000N-80000N, is obtained
To cylinder sheet tablet；
The tablet recycling that S15, use are failed later, dries under 60 degrees celsius, is sieved after grinding, lose by weight
Slow release tablet is prepared again than equivalent PAC raw materials grain and stearic acid starting material grain mixing is added, then by step S13 and S14.
Wherein, it is used for a diameter of 80mm-120mm of the slow release tablet of decentralized type sewage advanced treating, it is dirty for distributing
The thickness of the slow release tablet of water depth processing is 40mm-60mm.
In example 2, the quality parts ratio for the slow release tablet each component of decentralized type sewage advanced treating is：
Slow release tablet for decentralized type sewage advanced treating prepares and recovery method, includes the following steps：
S21, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) are sieved respectively, obtain the raw material of 100-200 mesh grain sizes
Grain；
S22, by mass fraction be 5 parts of PAC, 4 parts of stearic acid, 0.5 part of calcium stearate, 0.5 part of polytetrafluoroethyl-ne
Alkene mixes；
After S23, the mixing of raw material grain, uniform raw material grain is obtained using blender stirring 30min；
S24, it is molded using molding die and by tabletting machine, single inlet amount is 200g, and tablet forming pressure is
78500N obtains cylinder sheet tablet.Wherein, in example 2, it is used for the straight of the slow release tablet of decentralized type sewage advanced treating
Diameter is 100mm, thickness 50mm.
The active ingredient of PAC is 30% in slow release tablet after molding for decentralized type sewage advanced treating, wherein firmly
Resin acid, as auxiliary material, makes PAC slow releases in sewage, in rural area as erodible skeleton, calcium stearate with polytetrafluoroethylene (PTFE)
In sewage treatment facility, the release once to feed intake, processing timeliness up to one month, while discharge after, can be by the medicine of failure
Piece recycles, and supplements new raw material and prepares again.After launching slow release tablet in rural sewage treatment system, active ingredient is persistently released
It puts, after sewage enters processing 1 hour, a national standard can be improved in every Testing index, and drop can be fixed using slow release tablet
Low a certain concentration, such as phosphorus content are down to 0.3mg/L by the 0.8mg/L before handling, and can only for traditional method for treating water
Concentration is down near a particular value, and advanced treating can not be carried out again.
The present invention is provided to the slow release tablets of decentralized type sewage advanced treating, by PAC, stearic acid, calcium stearate, poly- four
Vinyl fluoride forms；It is prepared the invention further relates to the slow release tablet for decentralized type sewage advanced treating and recovery method, including step
Rapid S1, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) are sieved, obtain the raw material grain of 100-200 mesh grain sizes；S2, by quality
The stearic acid, 0.2-0.8 parts of calcium stearate, 0.3-0.7 parts of polytetrafluoroethylene (PTFE) raw material of PAC, 2-6 part that number is 3-7 parts
Grain mixing；S3, uniform raw material grain is obtained using blender stirring 30min；S4, using molding die and pass through tabletting machine
Molding, tablet forming pressure are 75000N-80000N, obtain cylinder sheet tablet.Slow release effect of the present invention is excellent, effectively saves
Manpower maintenance cost；After discharging simultaneously, the tablet of failure is recyclable, supplements new raw material and prepares again, saving is prepared into
This.The present invention is for decentralized type sewage advanced treating excellent effect, the suspended matter being discharged after effective raising processing, total phosphorus, drift
The indexs such as oil slick, coloration promote and apply convenient for rural sewage treatment.
More than, only presently preferred embodiments of the present invention is not intended to limit the present invention in any form；All one's own professions
The those of ordinary skill of industry can swimmingly implement the present invention shown in by specification；But all those skilled in the art
Without departing from the scope of the present invention, a little change for being made using disclosed above technology contents, modification with
The equivalent variations of differentiation are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals according to the present invention to implementing above
Example made by any equivalent variations variation, modification and evolution etc., still fall within technical scheme of the present invention protection domain it
It is interior.
Claims (10)
1. the slow release tablet for decentralized type sewage advanced treating, which is characterized in that by PAC, stearic acid, calcium stearate, poly- four
Vinyl fluoride forms, and the quality parts ratio of the slow release tablet each component for decentralized type sewage advanced treating is：
2. being used for the slow release tablet of decentralized type sewage advanced treating as described in claim 1, it is characterised in that：It is described to be used to divide
The quality parts ratio for dissipating the slow release tablet each component of formula advanced treatment of wastewater is：
3. being used for the slow release tablet of decentralized type sewage advanced treating as claimed in claim 2, it is characterised in that：It is described to be used to divide
The shape for dissipating the slow release tablet of formula advanced treatment of wastewater is cylinder sheet.
4. being used for the slow release tablet of decentralized type sewage advanced treating as claimed in claim 3, it is characterised in that：It is described to be used to divide
Dissipate a diameter of 80mm-120mm of the slow release tablet of formula advanced treatment of wastewater.
5. being used for the slow release tablet of decentralized type sewage advanced treating as claimed in claim 4, it is characterised in that：It is described to be used to divide
Dissipate a diameter of 100mm of the slow release tablet of formula advanced treatment of wastewater.
6. the slow release tablet for decentralized type sewage advanced treating as described in claim 3 or 4 or 5, it is characterised in that：It is described
The thickness of slow release tablet for decentralized type sewage advanced treating is 40mm-60mm.
7. being used for the slow release tablet of decentralized type sewage advanced treating as claimed in claim 6, it is characterised in that：It is described to be used to divide
The thickness for dissipating the slow release tablet of formula advanced treatment of wastewater is 50mm.
8. the slow release tablet preparation method for decentralized type sewage advanced treating, which is characterized in that include the following steps：
S1, PAC, stearic acid, calcium stearate, polytetrafluoroethylene (PTFE) are sieved respectively, obtain the raw material grain of 100-200 mesh grain sizes；
S2, the stearic acid of PAC, 2-6 part by mass fraction is 3-7 part, 0.2-0.8 parts of calcium stearate, 0.3-0.7 parts gather
Tetrafluoroethene raw material grain mixes；
After S3, the mixing of raw material grain, uniform raw material grain is obtained using blender stirring 30min；
S4, it is molded using molding die and by tabletting machine, tablet forming pressure is 75000N-80000N, obtains cylinder
Sheet tablet.
9. being used for the slow release tablet preparation method of decentralized type sewage advanced treating as claimed in claim 8, which is characterized in that also
Including step S5：The tablet recycling that use is failed later, dries under 60 degrees celsius, is sieved after grinding, lose by weight
Slow release tablet is prepared again than equivalent PAC raw materials grain and stearic acid starting material grain mixing is added, then by step S3 and S4.
10. being used for the slow release tablet preparation method of decentralized type sewage advanced treating as claimed in claim 8, it is characterised in that：
The forcing press briquetting pressure is 78500N；Single inlet amount in the step S4 is 180g-240g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122803.2A CN108383175A (en) | 2018-02-07 | 2018-02-07 | Slow release tablet and preparation method thereof for decentralized type sewage advanced treating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810122803.2A CN108383175A (en) | 2018-02-07 | 2018-02-07 | Slow release tablet and preparation method thereof for decentralized type sewage advanced treating |
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| Publication Number | Publication Date |
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| CN108383175A true CN108383175A (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810122803.2A Pending CN108383175A (en) | 2018-02-07 | 2018-02-07 | Slow release tablet and preparation method thereof for decentralized type sewage advanced treating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109970162A (en) * | 2019-03-28 | 2019-07-05 | 浙江大学 | A kind of novel dephosphorization sustained release agent and preparation method thereof |
| CN111186227A (en) * | 2020-01-17 | 2020-05-22 | 联信盛世(深圳)数字技术有限公司 | Thermal sublimation transfer paper suitable for hard materials and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109970162A (en) * | 2019-03-28 | 2019-07-05 | 浙江大学 | A kind of novel dephosphorization sustained release agent and preparation method thereof |
| CN111186227A (en) * | 2020-01-17 | 2020-05-22 | 联信盛世(深圳)数字技术有限公司 | Thermal sublimation transfer paper suitable for hard materials and preparation method thereof |
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Application publication date: 20180810 |