CN109133323A - A kind of Waste water treatment medicament and its application method - Google Patents
A kind of Waste water treatment medicament and its application method Download PDFInfo
- Publication number
- CN109133323A CN109133323A CN201811224758.8A CN201811224758A CN109133323A CN 109133323 A CN109133323 A CN 109133323A CN 201811224758 A CN201811224758 A CN 201811224758A CN 109133323 A CN109133323 A CN 109133323A
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- China
- Prior art keywords
- nanometer
- pyrite
- waste water
- medicament
- water treatment
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Classifications
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- 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
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
- C02F2101/345—Phenols
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of preparation of Waste water treatment medicament and its application methods.Current heterogeneous Fenton technology has obtained the extensive concern of researcher in treatment of Organic Wastewater field.Nanometer pyrite has good application potential because its catalytic activity at low cost is high, in heterogeneous Fenton field.However, nanometer pyrite is needed from the separation and recovery of liquid phase using the highly energy-consumings means such as ultrafiltration nanofiltration, higher cost；Nanometer pyrite Fenton-like system water outlet pH is low, and iron content is high, environmental risk with higher.The present invention, to the fixed function of nanometer pyrite particle and the crosslinked action of sodium alginate molecule and iron ion, obtains one kind and is easily isolated low-cost Waste water treatment medicament by sodium alginate gel.Medicament prepared by the present invention solves the disadvantage that nanometer pyrite is difficult to separate, while reducing the environmental risk of nanometer pyrite.Organic wastewater can effectively be handled, be had broad application prospects using Waste water treatment medicament prepared by the present invention and application method.
Description
Technical field
The present invention relates to field of waste water treatment, and in particular to a kind of use in waste water treatment medicament and its application method.
Background technique
With the development of the industries such as the high speed development of social economy, especially chemical industry, printing and dyeing and pharmacy, a large amount of waste water are discharged into
Natural water causes serious environmental problem.Wherein, the type and quantity of organic wastewater increasingly increase, these organic pollutants
The residence time is long in water, migration circle is wide, processing difficulty is big, and it has bio-toxicity more, to human health and ecological ring
Border causes safely stern challenge.Efficient and convenient processing means are developed for high toxicity, difficult for biological degradation organic pollutant
It is extremely urgent.Using solid material as the heterogeneous Fenton technology of catalyst because of its high treating effect, pH is adaptable and sludge
The advantage of low output has obtained extensive research and application in recent years.
In numerous heterogeneous catalysis, pyrite cheap, that ferrous content is high has obtained more concern.It is logical
It crosses and the partial size of pyrite is reduced to nanoscale can significantly increase the reactivity of pyrite.Biggish specific surface area makes to receive
The heterogeneous Fenton's reaction of cream-coloured iron ore catalysis all shows excellent removal capacity for relatively broad pollutant.
It is used to handle waste water however, nanometer pyrite is used as fenton catalyst there are some problems: 1) nanometer pyrite
It is present in reaction system in the form of uniform slurry, separation and recovery needs to consume energy high using means such as ultrafiltration or nanofiltrations；
2) water outlet pH is maintained at 3 or so, has certain corrosivity to structures and is unfavorable for subsequent biological treatment；3) dissolution of iron causes
Ferrous iron concentration is higher in water outlet, has the microorganism of subsequent biochemical processing compared with high toxicity, needs to add iron processing unit.
Chinese invention patent application CN105688764A disclose a kind of embedding type Nanoscale Iron bead preparation method and its
To the processing method of oily waste water, which solves the problems, such as that Nanoscale Iron is easy to aoxidize and recycle difficulty in air, however
The reduction of catalyst nano iron needs to consume hydrogen peroxide, and the present invention uses nanometer pyrite, is used for without consuming hydrogen peroxide
The reduction of catalyst significantly reduces hydrogen peroxide consumption and operating cost.
Chinese invention patent application CN105665028A discloses a kind of alginic acid salt core outer cladding copper/magnetic Fe3O4Receive
The preparation method of the heterogeneous class fenton catalyst of rice, the invention solve homogeneous Fenton pH opereating specification by catalyst of copper ion
Narrow defect, passes through magnetic Fe3O4Use with immobilization technology improves the separation property of catalyst ion, however the invention
The preparation of middle material needs alkaline condition and temperature to control, and complex process higher cost, mild condition of the present invention, process is simple,
With the invention Lothrus apterus.
Summary of the invention
It is an object of the invention to high for existing nanometer pyrite fenton catalyst separation and recovery energy consumption, environmental risk is big
The technical issues of, a kind of simple and easy to get be easy to point is developed based on the principle that nanometer pyrite is fixed on inside sodium alginate gel
From Waste water treatment medicament, and provide a kind of method that above-mentioned medicament is applied to wastewater treatment.
For achieving the above object, the present invention adopts the following technical scheme:
A kind of preparation method of Waste water treatment medicament, includes the following steps:
1) nanometer pyrite is added to the water, it is fully dispersed, obtain a nanometer pyrite suspension；Sodium alginate is added to the water,
Sufficiently dissolution, obtains sodium alginate soln；
2) nanometer pyrite suspension obtained in step 1) under agitation, is slowly added to sea obtained in step 1)
Solution of sodium alginate, and be uniformly mixed, mixing semigel liquid is made；
3) step 2) mixing semigel drop obtained is entered in calcium chloride solution, is stirred continuously, crosslinking curing, filters,
Waste water treatment medicament is made.
Preferably, step 1) the nanometer pyrite partial size is 1-300 nanometers.
Preferably, sodium alginate mass concentration is 1%-5%, nanometer pyrite matter in step 2) the mixing semigel liquid
Amount concentration is 0.01%-5%.
Preferably, calcium chloride solution mass concentration described in step 3) is 1%-10%, and the crosslinking curing time is that 1-12 is small
When.
Preferably, a kind of use in waste water treatment medicament as made from above-mentioned preparation method, medicament are in unifonn spherical, medicament diameter
1-6 millimeters.
A kind of application of the medicament as made from above-mentioned preparation method in the treatment of waste water.
Preferably, waste water is referred specifically to containing dyestuff, polycyclic aromatic hydrocarbon, Polychlorinated biphenyls and antibiotics one or more pollutant
Waste water.
Preferably, concrete application method are as follows: to the waste water of pollutant load 1-500 mg/litre, by solid-to-liquid ratio 0.5-5:10
The medicament is added, adds hydrogen peroxide, makes 1-100 mM/ls of content of hydrogen peroxide in system, at 15-40 DEG C with
50-300 revs/min of revolving speed stirs 0.5-5 hours.
The beneficial effects of the present invention are:
1) suction-operated of sodium alginate concentrates in pollutant near catalyst, is conducive to filling for pollutant and free radical
Divide reaction；
2) compared to the nano-scale of nanometer pyrite, develop 1-6 millimeters of medicament diameter of the present invention can pass through simple mistake
Filter separation, significantly reduces the energy consumption of separation and recovery of catalyst, and reduce loss of the catalyst in water outlet；
3) nanometer pyrite is added in water, and water body pH can be made to be rapidly decreased to 3 or so, have biggish ecological risk and
It is unfavorable for reacting the longtime running of structures, nanometer pyrite is fixed on inside sodium alginate gel by the present invention, forms part
Acidic environment greatly weakens ecological risk, and reduces the corrosion losses of structures；
4) iron ion of nanometer pyrite dissolution further crossslinked sodium alginate inside sodium alginate gel, avoids iron
Release to solution greatly weakens secondary pollution and the ecological risk of iron, without adding iron processing unit for water outlet.
Detailed description of the invention
Fig. 1 is the photo that Waste water treatment medicament is made in embodiment 1；
Fig. 2 is the comparison of the present invention obtained Waste water treatment medicament and nanometer pyrite separation property；
Fig. 3 is the comparison (nonyl phenol) of the present invention obtained Waste water treatment medicament and the dissolution of nanometer pyrite iron.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
Embodiment 1
The preparation of Waste water treatment medicament, steps are as follows:
1) 0.6 gram of nanometer pyrite is added in 50 ml deionized waters, ultrasonic disperse 30 minutes, obtains nanometer Huang iron
Mine suspension；6 grams of sodium alginates are added in 250 ml deionized waters, mechanical stirring 2 hours, sufficiently dissolution obtains sodium alginate
Solution；
2) 1) nanometer pyrite suspension obtained in is slowly added in sodium alginate soln, is vigorously stirred, obtains simultaneously
To semigel liquid is mixed, nanometer pyrite mass fraction is 0.2% in semigel liquid, and sodium alginate mass fraction is 2%；
3) using syringe by mix semigel drop enter in the calcium chloride solution of mass concentration 5%, while with 100 turns/
The revolving speed divided stirs calcium chloride solution；
4) 3) solution in is placed at room temperature for 3 hours, keeps the medicament of preparation full cross-linked, is obtained by filtration at product wastewater later
Manage medicament.
Waste water treatment medicament obtained above is as shown in Figure 1, medicament is in black ball shape, medicament uniform particle sizes, about 4 milli of diameter
Rice；Fig. 2 illustrates the comparison of the present invention obtained Waste water treatment medicament and nanometer pyrite separation property, in nanometer pyrite quality phase
With in the case where, medicament obtained by the present invention shows excellent separation property, has broken nanometer pyrite and has separated difficult energy consumption
High technical bottleneck.
Embodiment 2
Waste water treatment medicament of the invention is used to handle the dye, rhodamine B in dyeing waste water, includes the following steps:
Waste water treatment medicament made from embodiment 1 is added to the Luo Dan that volume is 50 milliliters of 10 mg/litres of mass concentration
In bright B waste water, 0.2 gram of medicament (in terms of dry weight) is added in every 100 milliliters of waste water；Magnetic agitation rotor, 100 revs/min of magnetic force are added
Stirring；Hydrogen peroxide is added, makes 1 mM/l of concentration of hydrogen peroxide；Timing sampling measures rhodamine B concentration；Rhodamine B
Concentration is measured using spectrophotometry in 554 nanometers.Through testing, 2 hours achievable rhodamine Bs are completely removed.
Embodiment 3
Waste water treatment medicament of the invention includes the following steps for handling p-nitrophenol waste water
Waste water treatment medicament made from embodiment 1 is added to pair that volume is 100 milliliters of 100 mg/litres of mass concentration
In nitrophenol wastewater, 0.4 gram of medicament (in terms of dry weight) is added in every 100 milliliters of waste water；Reaction vessel is placed in shaking table, with
150 revs/min of revolving speed concussion；Hydrogen peroxide is added, makes 10 mM/ls of concentration of hydrogen peroxide；Timing sampling is measured to nitro
Phenol concentration；The concentration of p-nitrophenol uses the high performance liquid chromatography equipped with UV detector to measure in 317 nanometers.Through reality
It tests, 1 hour achievable p-nitrophenol completely removes.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of preparation method of Waste water treatment medicament, which comprises the steps of:
1) nanometer pyrite is added to the water, it is fully dispersed, obtain a nanometer pyrite suspension；Sodium alginate is added to the water, sufficiently
Dissolution, obtains sodium alginate soln；
2) nanometer pyrite suspension obtained in step 1) under agitation, is slowly added to alginic acid obtained in step 1)
Sodium solution, and be uniformly mixed, mixing semigel liquid is made；
3) mixed gel drop made from step 2) is entered in calcium chloride solution, is stirred continuously, crosslinking curing, filtering is made useless
Water treatment agent.
2. preparation method according to claim 1, it is characterised in that: step 1) the nanometer pyrite partial size is 1-300
Nanometer.
3. preparation method according to claim 1, it is characterised in that: sodium alginate in step 2) the mixing semigel liquid
Mass concentration is 1%-5%, and nanometer pyrite mass concentration is 0.01%-5%.
4. preparation method according to claim 1, it is characterised in that: calcium chloride solution mass concentration described in step 3) is
1%-10%, crosslinking curing time are 1-12 hours.
5. use in waste water treatment medicament made from preparation method according to claim 1 to 4, it is characterised in that: the medicine
Agent be in unifonn spherical, 1-6 millimeters of medicament diameter.
6. the application of medicament in the treatment of waste water made from a kind of preparation method a method as claimed in any one of claims 1 to 5.
7. application according to claim 6, it is characterised in that: the waste water contain dyestuff, polycyclic aromatic hydrocarbon, Polychlorinated biphenyls and
One or more of antibiotic contamination.
8. according to application described in claim 6-7, it is characterised in that: to the waste water of pollutant load 1-500 mg/litre, press
The medicament is added in solid-to-liquid ratio 0.5-5:10, adds hydrogen peroxide, makes 1-100 mM/ls of content of hydrogen peroxide in system,
It is stirred 0.5-5 hours at 15-40 DEG C with 50-300 revs/min of revolving speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224758.8A CN109133323A (en) | 2018-10-19 | 2018-10-19 | A kind of Waste water treatment medicament and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811224758.8A CN109133323A (en) | 2018-10-19 | 2018-10-19 | A kind of Waste water treatment medicament and its application method |
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| CN109133323A true CN109133323A (en) | 2019-01-04 |
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ID=64808731
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| CN201811224758.8A Pending CN109133323A (en) | 2018-10-19 | 2018-10-19 | A kind of Waste water treatment medicament and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912044A (en) * | 2019-03-19 | 2019-06-21 | 中国地质大学（北京） | A kind of Waste water treatment medicament and its application method |
| CN111233225A (en) * | 2020-01-16 | 2020-06-05 | 深圳市蓝清环境科技工程有限公司 | UV-FENTON wastewater treatment process |
| CN113716673A (en) * | 2021-09-16 | 2021-11-30 | 桂林电子科技大学 | Method for removing antibiotics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464407A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Method for removing iron ions from drinking water |
| CN104722279A (en) * | 2015-03-14 | 2015-06-24 | 河南城建学院 | Method for removing heavy metal cadmium and lead pollutants in water by sodium alginate/gelatin coated nano zero-valent iron |
| CN105688764A (en) * | 2016-01-23 | 2016-06-22 | 福建师范大学 | Coated nano iron ball as well as preparation and application thereof |
-
2018
- 2018-10-19 CN CN201811224758.8A patent/CN109133323A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102464407A (en) * | 2011-10-20 | 2012-05-23 | 常州亚环环保科技有限公司 | Method for removing iron ions from drinking water |
| CN104722279A (en) * | 2015-03-14 | 2015-06-24 | 河南城建学院 | Method for removing heavy metal cadmium and lead pollutants in water by sodium alginate/gelatin coated nano zero-valent iron |
| CN105688764A (en) * | 2016-01-23 | 2016-06-22 | 福建师范大学 | Coated nano iron ball as well as preparation and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 丁峰等: "不同pH下纳米级天然黄铁矿对水中ＲeO4-的去除规律", 《环境工程学报》 * |
| 姬梦姣等: "黄铁矿作芬顿催化剂对孔雀石绿脱色的影响", 《金属矿山》 * |
| 施其康主编: "《精英化学 基础读本》", 28 February 2003, 上海世界图书出版公司 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109912044A (en) * | 2019-03-19 | 2019-06-21 | 中国地质大学（北京） | A kind of Waste water treatment medicament and its application method |
| CN111233225A (en) * | 2020-01-16 | 2020-06-05 | 深圳市蓝清环境科技工程有限公司 | UV-FENTON wastewater treatment process |
| CN111233225B (en) * | 2020-01-16 | 2022-03-08 | 深圳市蓝清环境科技工程有限公司 | UV-FENTON wastewater treatment process |
| CN113716673A (en) * | 2021-09-16 | 2021-11-30 | 桂林电子科技大学 | Method for removing antibiotics |
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Application publication date: 20190104 |