CN106396041A - High-efficiency treating agent for municipal sewage and preparation method thereof - Google Patents
High-efficiency treating agent for municipal sewage and preparation method thereof Download PDFInfo
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- CN106396041A CN106396041A CN201510464035.5A CN201510464035A CN106396041A CN 106396041 A CN106396041 A CN 106396041A CN 201510464035 A CN201510464035 A CN 201510464035A CN 106396041 A CN106396041 A CN 106396041A
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Abstract
The invention provides a composite sewage treating agent, comprising modified nanometer meerschaum powder, polyferric silicate sulfate, aminotrimethylene phosphate, polyferric chloride, sodium lignosulfonate, modified chitosan, resorcinol-thiourea-formaldehyde polycondensate, modified coconut shell-based active carbon and a copolymer as shown in a formula (I) which is defined in the specification. Through synergism of the above components of the sewage treating agent, the sewage treating agent has excellent comprehensive sewage treating capacity.
Description
Technical field
The present invention relates to urban sewage purification process field, more particularly, to a kind of compound sewage inorganic agent and preparation method thereof.
Background technology
According to environmental monitoring results statistical analysis although China increased the input to environmental protection, strengthen comprehensive environmental improvement,
But China's water pollution situation is still very severe, every gross contamination emission is very big, and pollution level is still at a relatively high level.
Urban sewage discharge has been the primary pollution source of Chinese city water.Accelerate with urbanization degree, water consumption increases, draining simultaneously
Amount increases, and sewage disposal demand also increases therewith, and sewage disposal and regeneration industry receive unprecedented paying close attention to.Each department rate of gross profit is all
It is maintained at 70% about, or even the area having has exceeded 100%, industry development potentiality are very big.
Current larger to water body harm be artificial pollution, chemical contamination, physical is broadly divided into according to the difference of pollution impurity
Pollution and biologic contamination three major types.The method processing sewage is a lot, typically can be summarized as Physical, chemical method and bioanalysis etc..
Wherein Physical not good, the handling rate instability problem that there is treatment effect；Bioanalysis has that processing cost is too high；Therefore
Chemical method is processing the developing direction that sewage becomes more concerned.Chemical method is to process pollutant using water treatment agent, commonly uses
Have Coagulation Method, neutralisation, oxidation-reduction method, ion-exchange etc..Sewage treatment drug is most commonly used that flocculant, including
Ferric trichloride, ferrous sulfate, aluminum sulfate, aluminium polychloride, polyaluminium sulfate, polymer phosphate aluminium, bodied ferric sulfate, polymerization
Aluminium chloride ferrum, polymeric silicicacid, polyacrylamide etc..But the sewage-treating agent comprehensive treatment capability in currently available technology is not enough,
Decontamination is inefficient.
Content of the invention
In view of the defect that prior art exists, it is an object of the invention to provide a kind of compound sewage inorganic agent, the process of its integrated wastewater
Ability is excellent, has decontamination efficiency high, and sinking speed is fast, and pH range width can effectively remove the feature of multiple pollutant.
Further, the present invention also provides the preparation method of this compound sewage inorganic agent.
The present invention relates to a kind of compound sewage inorganic agent, count by weight, including following components：
In formula (1), counted with the total amount of whole constitutional repeating units for 100mol%, a, b, c, d represent each constitutional repeating unit respectively
Account for the molar content of whole constitutional repeating unit total amounts, wherein, a is 50-80mol%, and b is 5-10mol%, and c is
5-10mol%, d are 9-35mol%；X is halogen, such as chlorine, bromine, iodine etc..Preferably, the copolymer shown in formula (1)
Number-average molecular weight be 50-500 ten thousand, preferably 200-500 ten thousand.
Preferably, dimethylaminoethyl acrylate (DMAEA) polymer that described modified Nano sepiolite powder is quaternized changes
The Nano sepiolite powder of property.
It is further preferred that described modified Nano sepiolite powder can be prepared in accordance with the following methods：After sepiolite is pulverized, plus
The aqueous hydrochloric acid solution entering 1-3mol/L carries out immersion treatment, and soak time is 24h, and soaking temperature is 40-50 DEG C, and solid-to-liquid ratio is preferred
1: 15～1: 20 (g: ml)；Suction filtration, gained filter cake is washed with deionized to neutrality, dries and obtain sour modified meerschaum powder；
Quaternized dimethylaminoethyl acrylate (DMAEA) monomer is configured to the aqueous solution of 10-20mmol/L, by solid-to-liquid ratio
Amount for 1: 15～1: 20 (g: ml) adds described acid modified meerschaum powder, after magnetic agitation 0.5-1h under room temperature, adds water
Property initiator, be stirred for disperse 0.5h, be then heated to 60-80 DEG C cause polymerization, polymerization 4-8h after suction filtration, filter cake spend from
Sub- water washing at least 3 times, being crushed to particle diameter after drying is 10-800nm, preferably 100-800nm, obtains modified Nano sepiolite
Powder.
Preferably, described modification of chitosan is the shitosan of xanthogenation.
It is further preferred that described modification of chitosan can be prepared in accordance with the following methods：It is scattered in alkalescence after shitosan is pulverized
In solution, add carbon disulfide reaction 3-6h, reaction temperature is 30-50 DEG C, is dried to obtain after being washed with methyl alcohol and ethanol respectively
Modification of chitosan.
Preferably, described modification coconut shell based activated carbon can be prepared in accordance with the following methods：
(1) coconut shell based activated carbon is crushed to 100-200 mesh, after using salt acid soak 12h of 1-3mol/L under agitation, takes out
Filter, gained filter cake uses the NaOH of 1-3mol/L to soak 12h, suction filtration again, and gained filter cake is washed with deionized to neutrality,
Dry；Solid-to-liquid ratio during immersion is 1: 15～1: 20 (g: ml)；
(2) step (1) gained coconut shell based activated carbon is carried out oxidation processes with hydrogen peroxide, treatment temperature is 60-80 DEG C, process time
For 24h, hydrogen peroxide concentration is 5-10mol/L, and solid-to-liquid ratio is 1: 15～1: 20 (g: ml)；Coconut based activated after oxidation processes
Charcoal is through filtering, washing, vacuum drying；
(3) coconut shell based activated carbon after step (2) gained oxidation processes is added to the lauryl sodium sulfate water of 0.04-0.06mol/L
In solution, solid-to-liquid ratio is 1: 100-1: 500 (g: ml), filters, washs, be drying to obtain modified coconut husk base work after 24h is stirred at room temperature
Property charcoal.
Copolymer shown in described formula (1) can be prepared according to method well known in the art, for example, enter each comonomer in proportion
Go free-radical polymerized etc., no longer describe in detail herein.
The present invention also provides the preparation method of this sewage-treating agent, comprises the steps：
(1) weigh each raw material according to the weight portion in above-mentioned formula；
(2) by the modified Nano sepiolite powder of formula ratio, ferric sulfate of polymerized silica, polyferric chloride, sodium lignin sulfonate, modified shell
Copolymer shown in glycan, resorcinol-sulfur melocol condensation polymer, modified coconut shell based activated carbon and formula (1) sequentially adds container
In mix；
(3) before use, add ATMP, sewage-treating agent after stirring, is obtained.
, by the synergy of above-mentioned each component, its integrated wastewater disposal ability is excellent, has decontamination for the sewage-treating agent of the present invention
Efficiency high, sinking speed is fast, the wide feature of pH range, can effectively remove phosphorus in sewage and various heavy such as
Mercury, lead, chromium, nickel, cadmium etc., integrate decolouring, flocculation, remove the several functions such as COD, better than traditional flocculant,
Up to more than 95%, phosphorus removal efficiency reaches more than 95%, COD clearance up to more than 90% to wherein percent of decolourization, using in rear sewage
The pollutants such as phosphorus, heavy metal, sulfide all no detect.
Specific embodiment
With reference to specific embodiment, the invention will be further described, but the present invention is not limited to following examples.
Embodiment 1
A kind of sewage-treating agent, counts by weight, composed of the following components：
In formula (1-1), a is 70mol%, and b is 8mol%, and c is 8mol%, and d is 14mol%, and the number of copolymer is divided equally
Son amount is about 2,000,000.
Modified Nano sepiolite powder to be prepared in accordance with the following methods：After sepiolite is pulverized, the aqueous hydrochloric acid solution of 2mol/L is added to enter
Row immersion treatment, soak time is 24h, and soaking temperature is 45 DEG C, solid-to-liquid ratio preferably 1: 15 (g: ml)；Suction filtration, by institute
Obtain filter cake to be washed with deionized to neutrality, dry and obtain sour modified meerschaum powder；By quaternized dimethylaminoethyl acrylate
(DMAEA) monomer is configured to the aqueous solution of 15mmol/L, adds described acid by the amount that solid-to-liquid ratio is 1: 15 (g: ml)
Modified meerschaum powder, after magnetic agitation 1h under room temperature, adds aqueous initiator, is stirred for disperseing 0.5h, is then heated to 70 DEG C
Cause polymerization, suction filtration after polymerization 8h, filter cake is washed with deionized at least 3 times, being crushed to particle diameter after drying is 500nm, obtains
Obtain modified Nano sepiolite powder.
Described modification of chitosan to be prepared in accordance with the following methods：It is scattered in after shitosan is pulverized in alkaline solution, add curing
Carbon reacts 6h, and reaction temperature is 45 DEG C, and alkaline solution is the sodium hydroxide solution of 0.2mol/L, carbon disulfide and shitosan
Mass ratio is 2: 1, is dried to obtain modification of chitosan after being washed with methyl alcohol and ethanol respectively.
Described modification coconut shell based activated carbon to be prepared in accordance with the following methods：
(1) coconut shell based activated carbon is crushed to 200 mesh, after using salt acid soak 12h of 2mol/L under agitation, suction filtration, institute
Obtaining filter cake uses the NaOH of 2mol/L to soak 12h, suction filtration again, gained filter cake is washed with deionized to neutrality, dries；Leaching
Solid-to-liquid ratio during bubble is 1: 15 (g: ml)；
(2) step (1) gained coconut shell based activated carbon is carried out oxidation processes with hydrogen peroxide, treatment temperature is 70 DEG C, process time is
24h, hydrogen peroxide concentration is 5mol/L, and solid-to-liquid ratio is 1: 15 (g: ml)；Coconut shell based activated carbon after oxidation processes through filter,
Washing, vacuum drying；
(3) coconut shell based activated carbon after step (2) gained oxidation processes is added to the lauryl sodium sulfate aqueous solution of 0.06mol/L
In, solid-to-liquid ratio is 1: 100 (g: ml), filters, washs, be drying to obtain modified coconut shell based activated carbon after 24h is stirred at room temperature.
The preparation method of this sewage-treating agent is：
(1) weigh each raw material according to the weight portion in above-mentioned formula；
(2) by the modified Nano sepiolite powder of formula ratio, ferric sulfate of polymerized silica, polyferric chloride, sodium lignin sulfonate, modified shell
Copolymer shown in glycan, resorcinol-sulfur melocol condensation polymer, modified coconut shell based activated carbon and formula (1) sequentially adds container
In mix；
(3) before use, add ATMP, sewage-treating agent after stirring, is obtained.
The sewage-treating agent of Application Example 1 is simulated wastewater treatment, and treatment effect is as follows：Unit mg/L
| Project | Input amount | COD | Suspension | Phosphorus | Sulfide | Mercury | Chromium | Chromium |
| Simulated wastewater | / | 500 | 10000 | 5 | 100 | 1000 | 1000 | 1000 |
| Embodiment 1 | 10 | 13 | 20 | Do not detect | Do not detect | Do not detect | Do not detect | Do not detect |
Claims (4)
1. a kind of sewage-treating agent is it is characterised in that count by weight, including following components：
In formula (1), counted with the total amount of entire infrastructure unit for 100mol%, a, b, c, d represent that each construction unit accounts for entire infrastructure list respectively
The molar content of first total amount, wherein, a is 50-80mol%, and b is 5-10mol%, and c is 5-10mol%, and d is 9-35mol%；
X is halogen, preferably chlorine, bromine；The number-average molecular weight of the copolymer shown in formula (1) is 50-500 ten thousand, preferably 200-500 ten thousand.
2. sewage-treating agent according to claim 1 it is characterised in that：Described modified Nano sepiolite powder is according to lower section
Method is preparing：After sepiolite is pulverized, the aqueous hydrochloric acid solution of 1-3mol/L is added to carry out immersion treatment, soak time is 24h,
Soaking temperature is 40-50 DEG C, solid-to-liquid ratio preferably 1: 15～1: 20 (g: ml)；Suction filtration, gained filter cake is washed with deionized
To neutral, dry and obtain sour modified meerschaum powder；Quaternized dimethylaminoethyl acrylate (DMAEA) monomer is prepared
Become the aqueous solution of 10-20mmol/L, add described acid modified meerschaum powder by the amount that solid-to-liquid ratio is 1: 15～1: 20 (g: ml),
After stirring 0.5-1h under room temperature, add aqueous initiator, be stirred for disperseing 0.5h, be then heated to 60-80 DEG C and cause polymerization,
Suction filtration after polymerization 4-8h, filter cake is washed with deionized at least 3 times, and being crushed to particle diameter after drying is 100-800nm, and acquisition changes
Property Nano sepiolite powder.
3. sewage-treating agent according to claim 1 it is characterised in that：Described modification of chitosan to be made in accordance with the following methods
Standby：It is scattered in after shitosan is pulverized in alkaline solution, adds carbon disulfide reaction 3-6h, reaction temperature is 30-50 DEG C, point
It is dried to obtain modification of chitosan after not washed with methyl alcohol and ethanol.
4. sewage-treating agent according to claim 1 it is characterised in that：Described modification coconut shell based activated carbon is according to lower section
Method is preparing：
(1) coconut shell based activated carbon is crushed to 100-200 mesh, after using salt acid soak 12h of 1-3mol/L under agitation, takes out
Filter, gained filter cake uses the NaOH of 1-3mol/L to soak 12h, suction filtration again, and gained filter cake is washed with deionized to neutrality,
Dry；Solid-to-liquid ratio during immersion is 1: 15～1: 20 (g: ml)；
(2) step (1) gained coconut shell based activated carbon is carried out oxidation processes with hydrogen peroxide, treatment temperature is 60-80 DEG C, process time
For 24h, hydrogen peroxide concentration is 5-10mol/L, and solid-to-liquid ratio is 1: 15～1: 20 (g: ml)；Coconut based activated after oxidation processes
Charcoal is through filtering, washing, vacuum drying；
(3) coconut shell based activated carbon after step (2) gained oxidation processes is added to the lauryl sodium sulfate water of 0.04-0.06mol/L
In solution, solid-to-liquid ratio is 1: 100-1: 500 (g: ml), filters, washs, be drying to obtain modified coconut husk base after 24h is stirred at room temperature
Activated carbon.
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| CN108358325A (en) * | 2018-05-21 | 2018-08-03 | 卢永辉 | A kind of chemical engineering sewage inorganic agent and preparation method thereof |
| CN108479698A (en) * | 2018-03-31 | 2018-09-04 | 河南省城乡规划设计研究总院有限公司 | A kind of synchronous preparation method for removing the modified activated carbon of heavy metal and organic matter in sewage |
| CN108821360A (en) * | 2018-06-27 | 2018-11-16 | 重庆渝茁科技有限公司 | Trade effluent environment-friendly type water purification agent and preparation method thereof |
| CN116199825A (en) * | 2023-03-14 | 2023-06-02 | 东营施普瑞石油工程技术有限公司 | Scale inhibitor for oilfield sewage and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126513A (en) * | 2017-11-30 | 2018-06-08 | 安徽宏远职业卫生技术服务有限公司 | It is a kind of to be used to absorb absorbent of pernicious gas and preparation method thereof in air |
| CN108479698A (en) * | 2018-03-31 | 2018-09-04 | 河南省城乡规划设计研究总院有限公司 | A kind of synchronous preparation method for removing the modified activated carbon of heavy metal and organic matter in sewage |
| CN108479698B (en) * | 2018-03-31 | 2020-12-11 | 河南省城乡规划设计研究总院股份有限公司 | Preparation method of modified activated carbon for synchronously removing heavy metals and organic matters in sewage |
| CN108358325A (en) * | 2018-05-21 | 2018-08-03 | 卢永辉 | A kind of chemical engineering sewage inorganic agent and preparation method thereof |
| CN108821360A (en) * | 2018-06-27 | 2018-11-16 | 重庆渝茁科技有限公司 | Trade effluent environment-friendly type water purification agent and preparation method thereof |
| CN116199825A (en) * | 2023-03-14 | 2023-06-02 | 东营施普瑞石油工程技术有限公司 | Scale inhibitor for oilfield sewage and preparation method thereof |
| CN116199825B (en) * | 2023-03-14 | 2024-04-09 | 东营施普瑞石油工程技术有限公司 | Scale inhibitor for oilfield sewage and preparation method thereof |
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