CN106466610A - Preparation technology for the loaded catalyst of RO concentrated water - Google Patents
Preparation technology for the loaded catalyst of RO concentrated water Download PDFInfo
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- CN106466610A CN106466610A CN201510508936.XA CN201510508936A CN106466610A CN 106466610 A CN106466610 A CN 106466610A CN 201510508936 A CN201510508936 A CN 201510508936A CN 106466610 A CN106466610 A CN 106466610A
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Abstract
The present invention discloses a kind of preparation technology of the loaded catalyst for RO concentrated water, is grouped into by the group of following weight portion：Particle diameter is 88.7～91.3 parts of activated alumina particle and 1.2～1.5 parts of the copper oxide of 2～4mm, 4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, 0.3～0.5 part of hydroxypropyl cellulose, 0.2～0.4 part of manganese dioxide, by described particle diameter be 2～4mm 88.7～91.3 parts of activated alumina particle and 1.4～1.6 parts of copper oxide, 0.8～1.2 part of titanium dioxide, 4～7 parts of Polyethylene Glycol, 1.9～2.1 parts of polyvinyl alcohol mixes in stirring mixer, so that uniform 1.4～1.6 parts of mixed copper oxide, 0.8～1.2 part of titanium dioxide, 4～7 parts of Polyethylene Glycol, 1.9～2.1 parts of polyvinyl alcohol is covered in described activated alumina particle surface.The present invention physical capacity of resistance to salt is strong, normally can use, catalyst activity is high, low cost, and preparation method is simple in the TDS no more than waste water of 8000mg/L.
Description
Technical field
The present invention relates to a kind of preparation technology of the loaded catalyst for RO concentrated water, belong to ozone oxidation skill
Art field.
Background technology
RO technology has been widely used for the numerous areas such as electronics, chemical industry, desalinization, chemical engineering sewage reuse,
There is irreplaceable advantage.Using RO PROCESS FOR TREATMENT sewage, 1/3 condensed water (concentrated water) can be produced,
Contain the refractory organic compounds being detrimental to health with ecological environment in concentrated water, its concentration exceedes discharge mark more
The appropriate process of standard, therefore concentrated water is the widely used bottleneck of RO technology.
Reverse osmosiss (RO) membrane process, while producing high-quality water, also creates the high saliferous being concentrated organic
Waste water.In such waste water, COD is generally more than discharge standard it is impossible to directly discharge.This water process difficulty is very big,
Method effectively is there is no to carry out this waste water of individual processing at present.Dense Organic substance in water is essentially the Organic substance of the dissolved,
The chemical property of micro quantity organic pollutant and biochemical property are all relatively stable, and the TDS in concentrated water is (always molten simultaneously
Solution property solid) concentration higher (TDS ＞ 4000mg/L), particularly it is rich in the inorganic ionss such as chloride ion.Such
The feature of sewage makes this sewage can neither be processed by the way of biological oxidation, again can not be using flocculation
The physical treatment method such as filtration.Similarly, since the presence of substantial amounts of inorganic salt have impact on oxidation processes effect in water
Rate is so that independent efficiency by the way of oxidation processes is also affected.
Degradation speed is fast, oxidation efficiency is high, do not produce secondary dirt because having for heterogeneous catalytic ozonation technology
The features such as dye, reaction condition are gentle, is widely used in advanced treatment of wastewater field at present, but in saline sewage
Process in, by salts substances such as C1-, SO42-, Na+, Ca2+, catalytic oxidation process is affected, smelly
Oxygen catalytic oxidation technique can not obtain good treatment effect all the time.The impact of salts substances becomes ozone and urges
Change the bottleneck influence factor of oxidation processes brine waste.
Content of the invention
It is an object of the present invention to provide a kind of loaded catalyst for RO concentrated water, the raising of this loaded catalyst
Tolerance to high salts substances is so that in the catalytic oxidation treatment process to saline sewage, catalyst
Catalysis ozone, produces active hydroxyl radical free radical, to the removal of waste water COD, decolouring, de- stench, degraded
Toxic pollutant and the biodegradability good effect of holding improving waste water；Meanwhile, provide one kind above-mentioned resistance to
The preparation method of high salt ozone catalyst.
For reaching above-mentioned purpose, the first technical scheme that the present invention adopts is：A kind of resistance to high salt ozone catalyst,
Described resistance to high salt ozone catalyst is grouped into by the group of following weight portion：
By described particle diameter be 2～4mm 88.7～91.3 parts of activated alumina particle and 1.2～1.5 parts of copper oxide,
4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide mixes in stirring mixer so that uniform mixed copper oxide 1.2～1.5
Part, 4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide are covered in described activated alumina particle surface and form catalyst mother bulb；Again will
Catalyst mother bulb is dried successively, roasting obtains described loaded catalyst.
For reaching above-mentioned purpose, the second technical scheme that the present invention adopts is：A kind of above-mentioned ozone of resistance to high salt
The preparation method of catalyst, comprises the following steps：
Step one, 88.7～91.3 parts of activated alumina distilled water are cleaned for several times to remove the miscellaneous of its surface
Matter, and be dried to quality constant weight, the particle diameter of described activated alumina is 2～4mm；
Step 2,88.7～91.3 parts of activated aluminas that step one is obtained and 1.4～1.6 parts of copper oxide,
0.8～1.2 part of titanium dioxide, 4～7 parts of Polyethylene Glycol, 1.9～2.1 parts of polyvinyl alcohol are mixed in stirring mixer
Close so that uniformly 1.4～1.6 parts of mixed copper oxide, 0.8～1.2 part of titanium dioxide, Polyethylene Glycol 4～7
Part, 1.9～2.1 parts of polyvinyl alcohol are covered in described activated alumina particle surface and form catalyst mother bulb；
Step 3, take out described catalyst mother bulb from stirring mixer, after drying at room temperature, put into baking
Case, is dried under the conditions of 100～120 DEG C and obtains dried catalyst mother bulb；
Step 4, dried catalyst mother bulb is put in Muffle furnace, roasting under the conditions of 350～520 DEG C obtains
Obtain loaded catalyst.
In technique scheme, further improved technical scheme is as follows：
Preferably, under the conditions of 100～120 DEG C, drying time is 4～6 hours in described step 3.
Preferably, under the conditions of 350～520 DEG C, roasting time is 7～9 hours in described step 4.
Because technique scheme is used, the present invention compared with prior art has following advantages and effect：
1st, the present invention is used for the preparation technology of the loaded catalyst of RO concentrated water, which raises to high salt thing
The tolerance of matter is so that in the catalytic oxidation treatment process to saline sewage, catalyst ozone produces
Active hydroxyl radical free radical, to the removal of waste water COD, decolouring, de- stench, degraded toxic pollutant and
The biodegradability improving waste water keeps good effect.
2nd, the present invention is used for the preparation technology of the loaded catalyst of RO concentrated water, and its physical capacity of resistance to salt is strong,
Normally can use in the TDS no more than waste water of 8000mg/L, catalyst activity is high, low cost, and makes
Preparation Method is simple, and therefore for catalytic ozonation technology, the extensive application in saline sewage advanced treating has
Highly important meaning.
Specific embodiment
With reference to embodiment, the invention will be further described：
Embodiment 1～4：A kind of loaded catalyst for RO concentrated water, described loaded catalyst is by following
The group of weight portion is grouped into, as shown in table 1：
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| Activated alumina particle | 90 parts | 89.5 parts | 89 parts | 91 parts |
| 1.2～1.5 parts of copper oxide | 1.25 part | 1.4 part | 1.2 part | 1.3 part |
| 4～7 parts of Polyethylene Glycol | 5.2 part | 6 parts | 4.5 part | 6.2 part |
| 1.5～2 parts of polyvinyl alcohol | 1.5 part | 1.8 part | 2 parts | 1.6 part |
| 0.8～1 part of titanium dioxide | 1 part | 0.9 part | 0.95 part | 0.8 part |
| 0.3～0.5 part of hydroxypropyl cellulose | 0.45 part | 0.38 part | 0.5 part | 0.35 part |
| 0.2～0.4 part of manganese dioxide | 0.3 part | 0.2 part | 0.25 part | 0.32 part |
Described activated alumina particle particle diameter is 2～4mm；
By described particle diameter be 2～4mm 88.7～91.3 parts of activated alumina particle and 1.2～1.5 parts of copper oxide,
4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide mixes in stirring mixer so that uniform mixed copper oxide 1.4～1.6
Part, 0.8～1.2 part of titanium dioxide, 4～7 parts of Polyethylene Glycol, 1.9～2.1 parts of polyvinyl alcohol are covered in described work
Property Membranes On Alumina Particles Surface formed catalyst mother bulb；Again catalyst mother bulb is dried successively, roasting obtains
Described loaded catalyst.
Above-described embodiment is used for the preparation technology of the loaded catalyst of RO concentrated water, comprises the following steps：
Step one, 88.7～91.3 parts of activated alumina distilled water are cleaned for several times to remove the miscellaneous of its surface
Matter, and be dried to quality constant weight, the particle diameter of described activated alumina is 2～4mm；
Step 2,88.7～91.3 parts of activated aluminas that step one is obtained and 1.2～1.5 parts of copper oxide,
4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide mixes in stirring mixer so that uniform mixed copper oxide 1.2～1.5
Part, 4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide are covered in described activated alumina particle surface and form catalyst mother bulb；
Step 3, take out described catalyst mother bulb from stirring mixer, after drying at room temperature, put into baking
Case, is dried under the conditions of 100～120 DEG C and obtains dried catalyst mother bulb；
Step 4, dried catalyst mother bulb is put in Muffle furnace, roasting under the conditions of 350～520 DEG C obtains
Obtain resistance to high salt ozone catalyst.
In above-mentioned steps three under the conditions of 100～120 DEG C drying time be 5 hours, in above-mentioned steps four
Under the conditions of 350～520 DEG C, roasting time is 8 hours.
The loaded catalyst catalytic effect that the present invention is used for RO concentrated water is evaluated, and experimental technique data is shown in Table 2：
In the test of dynamic continuous flow catalytic ozonation, catalyst amountses are 1.5L, ozone dosage
100mg/L, hydraulic detention time 1h, utilize gas flowmeter to control ozone dosage, by wriggling in experiment
Pump continuum micromeehanics.After running 3 cycle catalytic effect stabilities, repeatedly COD is measured by sampling, averages.
Experiment condition：Dynamic continuous flow operational mode, ozone dosage 100mg/L, HRT=1h.
Water inlet source：Certain chemical plant RO concentrated water, COD about 350mg/L, TDS are 3500mg/L.
The Contrast on effect of the different ozone catalyst catalysis oxidation RO concentrated water of table 2
From table 2, data understands, urges with respect to Zhonghai Asphalt's conventional alumina ozone
Agent, resistance to high salt ozone catalyst catalysis oxidation RO concentrated water, is 100mg/L in ozone dosage, waterpower is stopped
The time is stayed to be under 1h service condition, COD clearance is up to 34.2%, ozone efficiency is 1.1, far superior to
Conventional ozone catalyst.
Therefore, using the above-mentioned loaded catalyst for RO concentrated water preparation technology when, which raises to height
The tolerance of salts substances is so that in the catalytic oxidation treatment process to saline sewage, catalyst is smelly
Oxygen produces active hydroxyl radical free radical, to the removal of waste water COD, decolouring, de- stench, degraded toxic contaminants
Thing and the biodegradability good effect of holding improving waste water；Secondly, its physical capacity of resistance to salt is strong, can
The TDS no more than waste water of 8000mg/L normally use, catalyst activity is high, low cost, and prepare
Method is simple, and therefore for catalytic ozonation technology, the extensive application in saline sewage advanced treating has ten
Divide important meaning.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow and is familiar with this skill
The personage of art will appreciate that present disclosure and implements according to this, can not limit the protection model of the present invention with this
Enclose.All equivalence changes made according to spirit of the invention or modification, all should cover the protection in the present invention
Within the scope of.
Claims (4)
1. a kind of loaded catalyst for RO concentrated water it is characterised in that：Described resistance to high salt ozone catalytic
Agent is grouped into by the group of following weight portion：
By described particle diameter be 2～4mm 88.7～91.3 parts of activated alumina particle and 1.2～1.5 parts of copper oxide,
4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide mixes in stirring mixer so that uniform mixed copper oxide 1.2～1.5
Part, 4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide are covered in described activated alumina particle surface and form catalyst mother bulb；Again will
Catalyst mother bulb is dried successively, roasting obtains described loaded catalyst.
2. a kind of for described in claim 1 for RO concentrated water loaded catalyst preparation technology,
It is characterized in that：Comprise the following steps：
Step one, 88.7～91.3 parts of activated alumina distilled water are cleaned for several times to remove the miscellaneous of its surface
Matter, and be dried to quality constant weight, the particle diameter of described activated alumina is 2～4mm；
Step 2,88.7～91.3 parts of activated aluminas that step one is obtained and 1.2～1.5 parts of copper oxide,
4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide mixes in stirring mixer so that uniform mixed copper oxide 1.2～1.5
Part, 4～7 parts of Polyethylene Glycol, 1.5～2 parts of polyvinyl alcohol, 0.8～1 part of titanium dioxide, hydroxypropyl cellulose 0.3～0.5
Part, 0.2～0.4 part of manganese dioxide are covered in described activated alumina particle surface and form catalyst mother bulb；
Step 3, take out described catalyst mother bulb from stirring mixer, after drying at room temperature, put into baking
Case, is dried under the conditions of 100～120 DEG C and obtains dried catalyst mother bulb；
Step 4, dried catalyst mother bulb is put in Muffle furnace, roasting under the conditions of 350～520 DEG C obtains
Obtain loaded catalyst.
3. the preparation technology of the loaded catalyst for RO concentrated water according to claim 1, it is special
Levy and be：In described step 3, under the conditions of 100～120 DEG C, drying time is 4～6 hours.
4. the preparation technology of the loaded catalyst for RO concentrated water according to claim 1, it is special
Levy and be：In described step 4, under the conditions of 350～520 DEG C, roasting time is 7～9 hours.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744498A (en) * | 2020-05-25 | 2020-10-09 | 广州广钢气体能源股份有限公司 | Manganese-copper composite oxide catalyst and preparation method and application thereof |
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| CN104014346A (en) * | 2014-05-16 | 2014-09-03 | 程帆 | Heterogeneous metal catalyst for ozonation enhancement as well as preparation method and application of catalyst |
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2015
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| CN201077792Y (en) * | 2007-05-22 | 2008-06-25 | 华南理工大学 | Ozone heterogenous catalysis oxygenize water treating device |
| CN102070238A (en) * | 2011-02-25 | 2011-05-25 | 中国海洋石油总公司 | Process method for treating reverse osmosis concentrated water in refining waste water by ozone catalytic oxidization |
| CN103466865A (en) * | 2013-08-29 | 2013-12-25 | 中国海洋石油总公司 | Ozone and photoelectrocatalysis combined treatment method of reverse osmosis membrane concentrated water in refinery waste water |
| CN104014346A (en) * | 2014-05-16 | 2014-09-03 | 程帆 | Heterogeneous metal catalyst for ozonation enhancement as well as preparation method and application of catalyst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111744498A (en) * | 2020-05-25 | 2020-10-09 | 广州广钢气体能源股份有限公司 | Manganese-copper composite oxide catalyst and preparation method and application thereof |
| CN111744498B (en) * | 2020-05-25 | 2021-05-25 | 广州广钢气体能源股份有限公司 | Manganese-copper composite oxide catalyst and preparation method and application thereof |
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Application publication date: 20170301 |