CN107262059A - A kind of environment-friendly high-efficiency sewage-treating agent and its preparation technology - Google Patents
A kind of environment-friendly high-efficiency sewage-treating agent and its preparation technology Download PDFInfo
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
- B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/14—Diatomaceous earth
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- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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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
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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Abstract
The invention belongs to technical field of sewage, more particularly to a kind of environment-friendly high-efficiency sewage-treating agent and its preparation technology.Environment-friendly high-efficiency sewage-treating agent of the present invention and its preparation technology, technique are simple, will not produce noxious material, environment-friendly, cost is low；Extensively, the pollutant that can effectively go in water removal, processing sewage is thorough, and cost of water treatment is low, non-toxic, pollution-free, and environmental protection, sewage-treating agent heavy metal has good adsorption capacity, reduces the corrosion to equipment, and water quality reaches discharge standard for raw material sources.
Description
Technical field
The invention belongs to technical field of sewage, more particularly to a kind of environment-friendly high-efficiency sewage-treating agent and its preparation work
Skill.
Background technology
Sewage includes sanitary sewage, trade effluent and first rain footpath and flows into other useless water such as drainpipe, refers generally to pass through
The water that pure intractability does not reach certain standard is made after recycling or one-level pollution are unable to after certain technical finesse.With me
The fast development of state's chemical industry, various new chemical products are applied to all trades and professions, particularly medicine, chemical industry, plating, print
In the industry of the heavily contaminateds such as dye.Trade effluent can pollute rivers and lakes surface water, cause water plant dead or even disappear, can also ooze
Underground water being arrived thoroughly, polluted underground water penetrates into soil, causing soil pollution, the growth of influence plant and edaphon causes tight
The environmental pollution of weight.
The problems such as sewage disposal technology is for saving water and energy has a very important role, but the environmental protection of sewage disposal simultaneously
Also affected during the use of medicament to environment.The environmentally friendly medicament of without phosphorus green water process has turned into domestic and international
The hot subject of water treatment agent research.Scientific utilization water treatment agent can effectively prevent fouling, so as to improve equipment and water resource
Utilization rate and reach the purpose for saving water source and the energy.
Currently, the problem of environmental protection turns into World Focusing, the emission request of trade effluent is strict, and country is corresponding to be forced to arrange
Apply, seek effective sewage-treating agent, can make to reach discharge standard after sewage disposal, be the difficulty that numerous enterprises are badly in need of solving
Topic.
The content of the invention
Goal of the invention：In order to overcome problem above, it is an object of the invention to provide a kind of environment-friendly high-efficiency sewage-treating agent and
Its preparation technology.
Technical scheme：It is an object of the present invention to provide a kind of environment-friendly high-efficiency sewage-treating agent, including following weight
The raw material components of part：8-16 parts of Sodium Polyacrylate, 8-12 parts of sodium metasilicate, 6-10 parts of poly-aluminum calcium chloride, 9-15 parts of diatom ooze, work
5-9 parts of charcoal of property, 6-10 parts of aluminum oxide, 2-4 parts of hydrotalcite, 1-3 parts of carboxymethyl cellulose, 15-25 parts of starch, PPI 3-
9 parts, 5-10 parts of bitter fruit leaf, modified 25-35 parts of pelelith, 120-150 parts of water.
It is preferred that, described raw material components are：12 parts of Sodium Polyacrylate, 10 parts of sodium metasilicate, 8 parts of poly-aluminum calcium chloride, silicon
12 parts of algal gel, 7 parts of activated carbon, 8 parts of aluminum oxide, 3 parts of hydrotalcite, 2 parts of carboxymethyl cellulose, 20 parts of starch, PPI 6
Part, 8 parts of bitter fruit leaf, modified 30 parts of pelelith, 135 parts of water.
It is preferred that, described starch is porous-starch.
It is preferred that, the preparation method of described modification pelelith is as follows：
（1）Pelelith is pre-processed：Pelelith is placed in temperature to dry pelelith after 12-16h in temperature under the conditions of 95-100 DEG C
Spend to calcine 1.5-2.5h under 600-650 DEG C of high temperature；
（2）Pelelith is modified：By step（1）After pelelith cooling after pretreatment calcining again with 0.6mol/L hydrochloric acid solution and
Immersion reaction 3-4h is carried out in 0.2mol/L Dopamine hydrochloride mixed liquor, pelelith drying is taken out, 0.5mol/L hydrogen is being added
Potassium oxide solution immersion 1-1.5h takes out pelelith drying and is modified pelelith.
It is preferred that, described step（2）Middle 0.6mol/L hydrochloric acid solution and 0.2mol/L Dopamine hydrochloride mixed liquor
Volume ratio be 2-3:1.
It is preferred that, the granularity of described activated carbon is 30-50 μm.
Another object of the present invention is to provide a kind of preparation technology of environment-friendly high-efficiency sewage-treating agent described above, bag
Include following steps：
1）The preparation of modified pelelith：The pretreatment of pelelith process obtains being modified 200 mesh excessively after pelelith, ball milling with modified
Sieve；
2）Bitter fruit leaf is weighed with 2-6 times of addition after the alcohol solution dipping 3-4h that 1-5 times of weight is added after Chinese medicine material crushing machine
The water of amount, which is heated to filter to take filtrate after 75-85 DEG C of refluxing extraction 1-2h, obtains bitter fruit leaf extract solution；
3）By Sodium Polyacrylate, sodium metasilicate, poly-aluminum calcium chloride, diatom ooze, activated carbon, aluminum oxide, hydrotalcite, carboxymethyl cellulose
Element, starch are put into ball mill after ball milling 1-2h 200 eye mesh screens excessively and obtain mixture；
4）PPI is added to the water and step 2 of formula ratio）China tree extract solution after add step 1）Modification volcano
Stone and step 3）Mixture and stirring, be incubated 1-2h at 65-75 DEG C, stir and produce described environment-friendly high-efficiency sewage disposal
Agent.
It is preferred that, the step 4）In mixing speed be 160-250rpm.
Above-mentioned technical proposal can be seen that the present invention and have the advantages that：Environment-friendly high-efficiency sewage of the present invention
Inorganic agent and its preparation technology, technique are simple, will not produce noxious material, environment-friendly, cost is low；Raw material sources are extensive, energy
The pollutant effectively gone in water removal, thoroughly, cost of water treatment is low, non-toxic, pollution-free, environmental protection, at sewage for processing sewage
Reason agent heavy metal has good adsorption capacity, reduces the corrosion to equipment, water quality reaches discharge standard.
Embodiment
With reference to specific embodiment, the present invention is furture elucidated.
Embodiment 1
A kind of environment-friendly high-efficiency sewage-treating agent, includes the raw material components of following parts by weight：8 parts of Sodium Polyacrylate, 8 parts of sodium metasilicate,
6 parts of poly-aluminum calcium chloride, 9 parts of diatom ooze, 5 parts of activated carbon, 6 parts of aluminum oxide, 2 parts of hydrotalcite, 1 part of carboxymethyl cellulose, starch
15 parts, 3 parts of PPI, 5 parts of bitter fruit leaf, modified 25 parts of pelelith, 120 parts of water.
Described starch is porous-starch.
The preparation method of described modification pelelith is as follows：
（1）Pelelith is pre-processed：It is that to dry pelelith after 16h under the conditions of 95 DEG C in temperature be 600 that pelelith is placed in into temperature
2.5h is calcined under DEG C high temperature；
（2）Pelelith is modified：By step（1）After pelelith cooling after pretreatment calcining again with 0.6mol/L hydrochloric acid solution and
Immersion reaction 3h is carried out in 0.2mol/L Dopamine hydrochloride mixed liquor, pelelith drying is taken out, 0.5mol/L hydrogen-oxygens are being added
Change potassium solution immersion 1h and take out pelelith drying modification pelelith.
Described step（2）The volume ratio of middle 0.6mol/L hydrochloric acid solution and 0.2mol/L Dopamine hydrochloride mixed liquor
For 2:1.
The granularity of described activated carbon is 30 μm.
A kind of preparation technology of environment-friendly high-efficiency sewage-treating agent described above, comprises the following steps：
1）The preparation of modified pelelith：The pretreatment of pelelith process obtains being modified 200 mesh excessively after pelelith, ball milling with modified
Sieve；
2）The water of 2 times of weight will be added after the alcohol solution dipping 3h that 1 times of weight is added after bitter fruit leaf Chinese medicine material crushing machine
It is heated to filter to take filtrate after 65 DEG C of refluxing extraction 2h and obtains bitter fruit leaf extract solution；
3）By Sodium Polyacrylate, sodium metasilicate, poly-aluminum calcium chloride, diatom ooze, activated carbon, aluminum oxide, hydrotalcite, carboxymethyl cellulose
Element, starch are put into ball mill after ball milling 1h 200 eye mesh screens excessively and obtain mixture；
4）PPI is added to the water and step 2 of formula ratio）China tree extract solution after add step 1）Modification volcano
Stone and step 3）Mixture and stirring, be incubated 2h at 65 DEG C, stir and produce described environment-friendly high-efficiency sewage-treating agent.
The step 4）In mixing speed be 160rpm.
Embodiment 2
A kind of environment-friendly high-efficiency sewage-treating agent, includes the raw material components of following parts by weight：16 parts of Sodium Polyacrylate, sodium metasilicate 12
Part, 10 parts of poly-aluminum calcium chloride, 15 parts of diatom ooze, 9 parts of activated carbon, 10 parts of aluminum oxide, 4 parts of hydrotalcite, carboxymethyl cellulose 3
Part, 25 parts of starch, 9 parts of PPI, 10 parts of bitter fruit leaf, modified 35 parts of pelelith, 150 parts of water.
Described starch is porous-starch.
The preparation method of described modification pelelith is as follows：
（1）Pelelith is pre-processed：It is that to dry pelelith after 12h under the conditions of 100 DEG C in temperature be 650 that pelelith is placed in into temperature
1.5h is calcined under DEG C high temperature；
（2）Pelelith is modified：By step（1）After pelelith cooling after pretreatment calcining again with 0.6mol/L hydrochloric acid solution and
Immersion reaction 4h is carried out in 0.2mol/L Dopamine hydrochloride mixed liquor, pelelith drying is taken out, 0.5mol/L hydrogen-oxygens are being added
Change potassium solution immersion 1.5h and take out pelelith drying modification pelelith.
Described step（2）The volume ratio of middle 0.6mol/L hydrochloric acid solution and 0.2mol/L Dopamine hydrochloride mixed liquor
For 3:1.
The granularity of described activated carbon is 50 μm.
A kind of preparation technology of environment-friendly high-efficiency sewage-treating agent described above, comprises the following steps：
1）The preparation of modified pelelith：The pretreatment of pelelith process obtains being modified 200 mesh excessively after pelelith, ball milling with modified
Sieve；
2）The water of 6 times of weight will be added after the alcohol solution dipping 4h that 5 times of weight is added after bitter fruit leaf Chinese medicine material crushing machine
It is heated to filter to take filtrate after 85 DEG C of refluxing extraction 1h and obtains bitter fruit leaf extract solution；
3）By Sodium Polyacrylate, sodium metasilicate, poly-aluminum calcium chloride, diatom ooze, activated carbon, aluminum oxide, hydrotalcite, carboxymethyl cellulose
Element, starch are put into ball mill after ball milling 2h 200 eye mesh screens excessively and obtain mixture；
4）PPI is added to the water and step 2 of formula ratio）China tree extract solution after add step 1）Modification volcano
Stone and step 3）Mixture and stirring, be incubated 1h at 75 DEG C, stir and produce described environment-friendly high-efficiency sewage-treating agent.
The step 4）In mixing speed be 250rpm.
Embodiment 3
A kind of environment-friendly high-efficiency sewage-treating agent, includes the raw material components of following parts by weight：12 parts of Sodium Polyacrylate, sodium metasilicate 10
Part, 8 parts of poly-aluminum calcium chloride, 12 parts of diatom ooze, 7 parts of activated carbon, 8 parts of aluminum oxide, 3 parts of hydrotalcite, 2 parts of carboxymethyl cellulose,
20 parts of starch, 6 parts of PPI, 8 parts of bitter fruit leaf, modified 30 parts of pelelith, 135 parts of water.
Described starch is porous-starch.
The preparation method of described modification pelelith is as follows：
（1）Pelelith is pre-processed：It is that to dry pelelith after 14h under the conditions of 100 DEG C in temperature be 625 that pelelith is placed in into temperature
2h is calcined under DEG C high temperature；
（2）Pelelith is modified：By step（1）After pelelith cooling after pretreatment calcining again with 0.6mol/L hydrochloric acid solution and
Immersion reaction 3.5h is carried out in 0.2mol/L Dopamine hydrochloride mixed liquor, pelelith drying is taken out, 0.5mol/L hydrogen is being added
Potassium oxide solution immersion 1.2h takes out pelelith drying and is modified pelelith.
Described step（2）The volume ratio of middle 0.6mol/L hydrochloric acid solution and 0.2mol/L Dopamine hydrochloride mixed liquor
For 2.5:1.
The granularity of described activated carbon is 40 μm.
A kind of preparation technology of environment-friendly high-efficiency sewage-treating agent described above, comprises the following steps：
1）The preparation of modified pelelith：The pretreatment of pelelith process obtains being modified 200 mesh excessively after pelelith, ball milling with modified
Sieve；
2）By 4 times of weight of addition after the alcohol solution dipping 3.5h that 3 times of weight is added after bitter fruit leaf Chinese medicine material crushing machine
Water, which is heated to filter to take filtrate after 80 DEG C of refluxing extraction 1.5h, obtains bitter fruit leaf extract solution；
3）By Sodium Polyacrylate, sodium metasilicate, poly-aluminum calcium chloride, diatom ooze, activated carbon, aluminum oxide, hydrotalcite, carboxymethyl cellulose
Element, starch are put into ball mill after ball milling 1.5h 200 eye mesh screens excessively and obtain mixture；
4）PPI is added to the water and step 2 of formula ratio）China tree extract solution after add step 1）Modification volcano
Stone and step 3）Mixture and stirring, be incubated 1.5h at 70 DEG C, stir and produce described environment-friendly high-efficiency sewage-treating agent.
The step 4）In mixing speed be 200rpm.
After embodiment 1-3 sewage-treating agent is handled sewage respectively, the Colority of Sewage Water of before processing is 1500 times, place
Clear water colourity after reason is 80 times；And the clear water foul odour after processing substantially mitigates；Before processing turbidity of sewage is 255NTU,
Clear water turbidity reduction after processing is to 80NTU；COD clearances are 88-94%, and BOD clearances are 82-88%, heavy metal removing rate
For 80-85%, the clearance of phosphorus is 81-90%.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvement can also be made, these improvement also should be regarded as the present invention's
Protection domain.
Claims (8)
1. a kind of environment-friendly high-efficiency sewage-treating agent, it is characterised in that：Include the raw material components of following parts by weight：Sodium Polyacrylate 8-
16 parts, 8-12 parts of sodium metasilicate, 6-10 parts of poly-aluminum calcium chloride, 9-15 parts of diatom ooze, 5-9 parts of activated carbon, 6-10 parts of aluminum oxide, water
2-4 parts of talcum, 1-3 parts of carboxymethyl cellulose, 15-25 parts of starch, 3-9 parts of PPI, 5-10 parts of bitter fruit leaf, modified fire
Stone 25-35 parts of mountain, 120-150 parts of water.
2. a kind of environment-friendly high-efficiency sewage-treating agent according to claim 1, it is characterised in that：Described raw material components are：
12 parts of Sodium Polyacrylate, 10 parts of sodium metasilicate, 8 parts of poly-aluminum calcium chloride, 12 parts of diatom ooze, 7 parts of activated carbon, 8 parts of aluminum oxide, neatly
3 parts of stone, 2 parts of carboxymethyl cellulose, 20 parts of starch, 6 parts of PPI, 8 parts of bitter fruit leaf, modified 30 parts of pelelith, water 135
Part.
3. a kind of environment-friendly high-efficiency sewage-treating agent according to claim 1, it is characterised in that：Described starch forms sediment to be porous
Powder.
4. a kind of environment-friendly high-efficiency sewage-treating agent according to claim 1, it is characterised in that：Described modification pelelith
Preparation method is as follows：
（1）Pelelith is pre-processed：Pelelith is placed in temperature to dry pelelith after 12-16h in temperature under the conditions of 95-100 DEG C
Spend to calcine 1.5-2.5h under 600-650 DEG C of high temperature；
（2）Pelelith is modified：By step（1）After pelelith cooling after pretreatment calcining again with 0.6mol/L hydrochloric acid solution and
Immersion reaction 3-4h is carried out in 0.2mol/L Dopamine hydrochloride mixed liquor, pelelith drying is taken out, 0.5mol/L hydrogen is being added
Potassium oxide solution immersion 1-1.5h takes out pelelith drying and is modified pelelith.
5. a kind of environment-friendly high-efficiency sewage-treating agent according to claim 4, it is characterised in that：Described step（2）In
The volume ratio of 0.6mol/L hydrochloric acid solution and 0.2mol/L Dopamine hydrochloride mixed liquor is 2-3:1.
6. a kind of environment-friendly high-efficiency sewage-treating agent according to claim 1, it is characterised in that：The granularity of described activated carbon
For 30-50 μm.
7. a kind of preparation technology of environment-friendly high-efficiency sewage-treating agent according to claim any one of 1-6, it is characterised in that：
Comprise the following steps：
1）The preparation of modified pelelith：The pretreatment of pelelith process obtains being modified 200 mesh excessively after pelelith, ball milling with modified
Sieve；
2）Bitter fruit leaf is weighed with 2-6 times of addition after the alcohol solution dipping 3-4h that 1-5 times of weight is added after Chinese medicine material crushing machine
The water of amount, which is heated to filter to take filtrate after 75-85 DEG C of refluxing extraction 1-2h, obtains bitter fruit leaf extract solution；
3）By Sodium Polyacrylate, sodium metasilicate, poly-aluminum calcium chloride, diatom ooze, activated carbon, aluminum oxide, hydrotalcite, carboxymethyl cellulose
Element, starch are put into ball mill after ball milling 1-2h 200 eye mesh screens excessively and obtain mixture；
4）PPI is added to the water and step 2 of formula ratio）China tree extract solution after add step 1）Modification volcano
Stone and step 3）Mixture and stirring, be incubated 1-2h at 65-75 DEG C, stir and produce described environment-friendly high-efficiency sewage disposal
Agent.
8. a kind of preparation technology of environment-friendly high-efficiency sewage-treating agent according to claim 7, it is characterised in that：The step
4）In mixing speed be 160-250rpm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108394942A (en) * | 2018-03-29 | 2018-08-14 | 广州环发环保工程有限公司 | A kind of composite drug and preparation method thereof of river lake ecological management |
| CN112516968A (en) * | 2020-12-16 | 2021-03-19 | 东北电力大学 | Preparation method of metal organic framework material loaded modified diatomite adsorbent |
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| CN112516968A (en) * | 2020-12-16 | 2021-03-19 | 东北电力大学 | Preparation method of metal organic framework material loaded modified diatomite adsorbent |
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Application publication date: 20171020 |