CN109133306A - High-efficiency sewage processing precipitating reagent and preparation method thereof - Google Patents
High-efficiency sewage processing precipitating reagent and preparation method thereof Download PDFInfo
- Publication number
- CN109133306A CN109133306A CN201811117917.4A CN201811117917A CN109133306A CN 109133306 A CN109133306 A CN 109133306A CN 201811117917 A CN201811117917 A CN 201811117917A CN 109133306 A CN109133306 A CN 109133306A
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- China
- Prior art keywords
- sodium
- precipitating reagent
- aqueous solution
- ammonium chloride
- efficiency sewage
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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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
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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)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to technical field of sewage, specifically disclose a kind of high-efficiency sewage processing precipitating reagent and preparation method thereof, the precipitating reagent includes polydimethyl diallyl ammonium chloride, sodium hydroxyethyl cellulose aqueous solution, sodium silicate aqueous solution, wherein, the mass ratio of sodium hydroxyethlcellulose and sodium metasilicate is 1:8~1:10, and the mass ratio of the polydimethyl diallyl ammonium chloride and sodium hydroxyethyl cellulose is 1:1.7~1:2.The present invention has the characteristics that floccule body is larger, dosage is lower, non-toxic, synthesis price is lower and deposition efficiency is higher.
Description
Technical field
The present invention relates to technical field of sewage, in particular to a kind of high-efficiency sewage processing precipitating reagent and its preparation side
Method.
Background technique
In general, the wadding body size of formation, compactness, sinking speed and it is final in terms of, it is inorganic
Low molecule and high polymer coagulant are not so good as inorganic organic polymer molecule composite flocculation agent, while the former is also obvious more for dosage
In the latter.Anionic organic polymer flocculant cannot provide neutralization charge effect for negatively charged colloidal particle, individually make
Poor effect when for flocculant.Inorganic flocculating agent is practical to the water process of various complicated ingredients, can effectively remove micro-nano
The fine-grained particles object of grade, but the floccule body generated is small, and dosage is big.And organic flocculant dosage is few, flocculation rate is fast, by altogether
Deposit salt, medium pH and temperature influence smaller, the sludge quantity of generation is small；- COOH ,-the NH- ,-SO3- of organic polymer institute band,
The hydrophilic radicals such as OH- can have chain, cyclic structure, and pollutant can be made to enter wadding body, good decoloring performance；But it is certain organic high
Molecular substance or its hydrolysis, catabolite it is toxic, or synthesis price it is higher, so now it is more be by inorganic flocculating agent with have
Machine flocculant is used in combination, or Fe3+,Al3+Equal high-valence cationics introduce organic flocculant, effectively overcome inorganic flocculating agent
The short deficiency of strand forms big floccule body by the bridge formation between particle, is swept off by volume except molecule.
Therefore, existing sewage treatment precipitating reagent, that there are floccule bodys is small, dosage is big, toxic, synthesis price is high and
The low problem of deposition efficiency.
Summary of the invention
The present invention provides a kind of efficient to solve above-mentioned technical problem present in existing sewage treatment precipitating reagent
Sewage treatment precipitating reagent and preparation method thereof, it has, and floccule body is larger, dosage is lower, non-toxic, synthesis price is lower
With the higher feature of deposition efficiency.
Technical solution of the present invention: high-efficiency sewage processing precipitating reagent, the precipitating reagent includes poly dimethyl allyl
Ammonium chloride, sodium hydroxyethyl cellulose aqueous solution, sodium silicate aqueous solution, wherein the mass ratio of sodium hydroxyethlcellulose and sodium metasilicate
For 1:8~1:10, the mass ratio of the polydimethyl diallyl ammonium chloride and sodium hydroxyethyl cellulose is 1:1.7~1:2.
Preferably, the dissolving ratio of the sodium metasilicate and water is 1:40~1:50.
Preferably, the dissolving ratio of the sodium hydroxyethlcellulose and water is 1:70~1:80.
Another technical solution of the invention: high-efficiency sewage processing use precipitating reagent preparation method, include the following steps: by
Polydimethyl diallyl ammonium chloride and sodium hydroxyethlcellulose aqueous solution mixing after, with water bath with thermostatic control bed temperature be 15~
Agitating and heating 2.5h under the conditions of 20 DEG C, is then added sodium silicate aqueous solution, and precipitating reagent is made in stirring at normal temperature 1h.
The invention has the following beneficial effects:
(1) formula is simple, and raw material sources are extensive, and price is low, strong operability, can industrial applications；
(2) this precipitating reagent uses carboxyethyl cellulose on the basis of traditional flocculant polydimethyl diallyl ammonium chloride
The advantages of sodium precipitating reagent, while introducing sodium metasilicate cosolvent, mixed precipitant can play every kind of ingredient, so that floccule body body
Product is larger, and the amount of precipitating reagent used is lower, and without toxicity, synthesis price is lower, and deposition efficiency is also higher, wherein deposition efficiency
99% or more can be reached.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated, but is not intended as the foundation limited the present invention.
High-efficiency sewage processing precipitating reagent, the precipitating reagent includes polydimethyl diallyl ammonium chloride, hydroxy ethyl fiber
Plain sodium water solution, sodium silicate aqueous solution, wherein the mass ratio of sodium hydroxyethlcellulose and sodium metasilicate is 1:8~1:10, described
The mass ratio of polydimethyl diallyl ammonium chloride and sodium hydroxyethyl cellulose is 1:1.7~1:2.The sodium metasilicate and water
Dissolving ratio be 1:40~1:50.The dissolving ratio of the sodium hydroxyethlcellulose and water is 1:70~1:80.
The high-efficiency sewage processing preparation method of precipitating reagent, includes the following steps, by polydimethyl diallyl ammonium chloride
With sodium hydroxyethlcellulose aqueous solution mixing after, with water bath with thermostatic control bed temperature be 15~20 DEG C under the conditions of agitating and heating 2.5h,
Then sodium silicate aqueous solution is added, precipitating reagent is made in stirring at normal temperature 1h.
Embodiment 1: high-efficiency sewage processing precipitating reagent, the precipitating reagent includes polydimethyl diallyl ammonium chloride, hydroxyl
Ethyl cellulose sodium water solution, sodium silicate aqueous solution, wherein the mass ratio of sodium hydroxyethlcellulose and sodium metasilicate is 1:9, institute
The mass ratio for stating polydimethyl diallyl ammonium chloride and sodium hydroxyethyl cellulose is 1:1.8.The sodium metasilicate and water it is molten
Solution ratio is 1:45.The dissolving ratio of the sodium hydroxyethlcellulose and water is 1:75.
Embodiment 2: the high-efficiency sewage processing preparation method of precipitating reagent includes the following steps, by two allyl of poly dimethyl
Ammonium chloride and sodium hydroxyethlcellulose aqueous solution mixing after, with water bath with thermostatic control bed temperature be 18 DEG C under the conditions of agitating and heating
2.5h, is then added sodium silicate aqueous solution, and precipitating reagent is made in stirring at normal temperature 1h.
Claims (4)
1. high-efficiency sewage processing precipitating reagent, it is characterized in that: the precipitating reagent includes polydimethyl diallyl ammonium chloride, hydroxyl second
Base sodium cellulosate aqueous solution, sodium silicate aqueous solution, wherein the mass ratio of sodium hydroxyethlcellulose and sodium metasilicate is 1:8~1:10,
The mass ratio of the polydimethyl diallyl ammonium chloride and sodium hydroxyethyl cellulose is 1:1.7~1:2.
2. high-efficiency sewage processing precipitating reagent according to claim 1, it is characterized in that: the dissolution of the sodium metasilicate and water
Ratio is 1:40~1:50.
3. high-efficiency sewage according to claim 1 processing precipitating reagent, it is characterized in that: the sodium hydroxyethlcellulose with
The dissolving ratio of water is 1:70~1:80.
4. the preparation method of precipitating reagent is used in the processing of high-efficiency sewage described in claim 1-3, it is characterized in that: include the following steps,
After polydimethyl diallyl ammonium chloride and sodium hydroxyethlcellulose aqueous solution are mixed, with water bath with thermostatic control bed temperature be 15~
Agitating and heating 2.5h under the conditions of 20 DEG C, is then added sodium silicate aqueous solution, and precipitating reagent is made in stirring at normal temperature 1h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117917.4A CN109133306A (en) | 2018-09-24 | 2018-09-24 | High-efficiency sewage processing precipitating reagent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811117917.4A CN109133306A (en) | 2018-09-24 | 2018-09-24 | High-efficiency sewage processing precipitating reagent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109133306A true CN109133306A (en) | 2019-01-04 |
Family
ID=64823607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811117917.4A Withdrawn CN109133306A (en) | 2018-09-24 | 2018-09-24 | High-efficiency sewage processing precipitating reagent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109133306A (en) |
-
2018
- 2018-09-24 CN CN201811117917.4A patent/CN109133306A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190104 |
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| WW01 | Invention patent application withdrawn after publication |