CN108467097A - A kind of dense media/salt coupling broken wall formula flocculant and its preparation method and application - Google Patents
A kind of dense media/salt coupling broken wall formula flocculant and its preparation method and application Download PDFInfo
- Publication number
- CN108467097A CN108467097A CN201810449135.4A CN201810449135A CN108467097A CN 108467097 A CN108467097 A CN 108467097A CN 201810449135 A CN201810449135 A CN 201810449135A CN 108467097 A CN108467097 A CN 108467097A
- Authority
- CN
- China
- Prior art keywords
- salt
- dense media
- flocculant
- broken wall
- wall formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Abstract
The present invention relates to a kind of dense media/salt to couple broken wall formula flocculant and its preparation method and application, and flocculant includes porous dense media and salt；Preparation method includes：Salt is dissolved in water, obtains salting liquid, dense media is added, and stirred after vacuumizing, it is dry to get；Flocculant is applied to sewage disposal.The present invention makes intracellular moisture be released by osmotic pressure, improves dehydration efficiency；It compresses sludge cake moisture content and is less than 60%；The nitrogenous raw material that can be used as plant nutrition liquid or soil conditioner with potassium liquid of height that broken wall generates；Impurity in sludge is attached to surface and the pore interior of dense media, and in sedimentation, since the density of dense media is more than the density of sewage, impurity settles together with dense media, and sludge settlement rate is fast.
Description
Technical field
The invention belongs to flocculant and its preparation method and application field, more particularly to a kind of dense media/salt couples broken wall
Formula flocculant and its preparation method and application.
Background technology
Organic flocculant performance is stablized, and flocculating effect is good, but expensive, and the residual monomer of this kind of high polymer has
" three cause " effect (causing rugged, carcinogenic, mutagenesis)；Traditional inorganic flocculating agent stability is poor, and flocculating effect is general, but price is just
Preferably, demand is high；But the sludge that inorganic flocculating agent flocculates passes through press filtration, it is necessary to by means of additives such as lime
Or sludge cake moisture content could be reduced to 60% by lime with high pressure, but the non-combustible part of dewatered sludge increases by 25~50%, even
Taller, burning flying dust and lime-ash are significantly increased, and reduce sludge ultimate disposal effect, improve processing cost, this technology is caused to lack
Caused by sunken reason is existing flocculant design principle.
Existing flocculant theoretical foundation is：" coalescence " is theoretical.Flocculant mainly carries positive (negative) electrical group and water
In it is close to each other with negative (just) electrical some particles for being difficult to detach or particle, reduce its potential, be at shakiness
Determine state, using its coalescence property agglomeration, and is separated by physics or chemical method.It generates with this method
For sludge aqueous up to 80% after press filtration, this brings very big influence to follow-up sludge treatment technique.
Invention content
Technical problem to be solved by the invention is to provide a kind of dense media/salt coupling broken wall formula flocculant and its preparation sides
Method and application, the flocculant not only have coalescence ability, and have and abolish microorganism wall or change cyto-architectural
Function substantially reduces filter press cake moisture content.
A kind of dense media of the present invention/salt couples broken wall formula flocculant, and the flocculant includes porous dense media and salt, salt
Account for the 0.1%-80% of porous dense media and salt gross mass.
The salt is attached to the pore surface of porous dense media.
The dense media is one or more in flyash, sand, biogum.
The dense media grain size is 60-200 mesh.
The salt is at least one of sylvite, ammonium salt.
The sylvite is at least one of potassium sulfate, potassium chloride.
The ammonium salt is at least one of ammonium sulfate, ammonium chloride.
A kind of preparation method of dense media of the present invention/salt coupling broken wall formula flocculant, including：
Salt is dissolved in water, salting liquid is obtained, dense media is added, and stirred after vacuumizing, it is dry, obtain dense medium
Matter/salt couples broken wall formula flocculant, wherein a concentration of 50~400g/L of salting liquid, and the dosage of dense media is 100~
4000g/L。
The mixing time is 20~40min.
The drying temperature is 60~100 DEG C.
A kind of dense media of the present invention/salt coupling broken wall formula flocculant is applied to sewage disposal, the specific steps are：
Dense media/salt coupling broken wall formula flocculant is put by 2%~5% mass concentration in sewage, according to sewage feelings
Condition stirs 2~4 hours, precipitates 30~60 minutes.
A kind of dense media of the present invention/salt couples broken wall formula flocculant during treated sewage, and the salt in flocculant is molten
In water, the effect of salt is exactly while inhibiting cell activity to solution so that cell wall is inside and outside to generate osmotic pressure, intracellular water
It is penetrated into extracellularly by cell wall, intracellular water releases；Dense media in flocculant can adsorb pollutant, heavy
During drop, the pollutant being attached on dense media settles together with dense media, accelerated sedimentation process.
Advantageous effect
(1) present invention makes intracellular moisture be released by osmotic pressure, improves dehydration efficiency；Compression sludge cake contains
Water rate is less than 60%.The nitrogenous raw material that can be used as plant nutrition liquid or soil conditioner with potassium liquid of height that broken wall generates.Sludge
In impurity be attached to surface and the pore interior of dense media, in sedimentation, since the density of dense media is more than the density of sewage,
Impurity settles together with dense media, and sludge settlement rate is fast.
(2) broken wall formula flocculant of the present invention, it is intended to overcome existing inorganic matter to coagulate agent disadvantage, be fully solved sludge flocculation dehydration
With final efficient pollution-free problem of complex utilization.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
The potassium sulfate for weighing 50g, is dissolved in 1L water, then weighs the flyash that 100g grain sizes are 60 mesh, pours into above-mentioned
In solution, vacuum condition keeps 1min, then by magnetic stirrer 30min, and weight is prepared in drying under the conditions of 80 DEG C
Medium/salt couples broken wall formula flocculant.Dehydration efficiency can be improved in this broken wall formula flocculant, for Shanghai Songjiang sewage treatment plant
Sewage disposal, sewage disposal the specific steps are：Broken wall formula flocculant is put by 5% mass concentration in sewage, according to
Sewage situation stirs 2 hours, precipitates 30 minutes.Sludge cake moisture content is compressed after sewage disposal and is less than 58%, and the sedimentation time shortens
20%.
Embodiment 2
The ammonium chloride for weighing 100g, is dissolved in 1L water, then weighs the flyash that 200g grain sizes are 100 mesh, pours into
It states in solution, vacuum condition keeps 1min, then by magnetic stirrer 30min, drying, is prepared under the conditions of 80 DEG C
Dense media/salt couples broken wall formula flocculant.Dehydration efficiency can be improved in this broken wall formula flocculant, for Shanghai Songjiang sewage disposal
The sewage disposal of factory, sewage disposal the specific steps are：Broken wall formula flocculant is put by 2% mass concentration in sewage, root
It stirs 4 hours, precipitates 60 minutes according to sewage situation.Sludge cake moisture content is compressed after sewage disposal is less than 55%, sedimentation time contracting
It is short by 30%.
Embodiment 3
The ammonium sulfate for weighing 200g, is dissolved in 1L water, then weighs the biogum that 200g grain sizes are 60 mesh, pours into above-mentioned
In solution, vacuum condition keeps 1min, then by magnetic stirrer 30min, drying, is prepared under the conditions of 100 DEG C
Dense media/salt broken wall formula flocculant.Dehydration efficiency can be improved in this broken wall formula flocculant, for Shanghai Songjiang sewage treatment plant
Sewage disposal, sewage disposal the specific steps are：Broken wall formula flocculant is put by 3% mass concentration in sewage, according to dirt
Regimen condition stirs 3 hours, precipitates 30 minutes.Sludge cake moisture content is compressed after sewage disposal and is less than 60%, and the sedimentation time shortens
30%.
The above, only presently preferred embodiments of the present invention, not to the present invention in any form with substantial limitation,
It should be pointed out that for those skilled in the art, under the premise of not departing from the method for the present invention, can also make
Several improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile all substantial technologicals pair according to the present invention
The variation, modification and evolution of any equivalent variations made by above-described embodiment, still fall within the range of technical scheme of the present invention
It is interior.
Claims (10)
1. a kind of dense media/salt couples broken wall formula flocculant, which is characterized in that the flocculant includes porous dense media and salt,
Salt accounts for the 0.1%-80% of porous dense media and salt gross mass.
2. a kind of dense media described in accordance with the claim 1/salt couples broken wall formula flocculant, which is characterized in that the salt attachment
In the pore surface of porous dense media.
3. a kind of dense media described in accordance with the claim 1/salt couples broken wall formula flocculant, which is characterized in that the dense media
It is one or more in flyash, sand, biogum.
4. coupling broken wall formula flocculant according to a kind of dense media described in claim 1 or 3/salt, which is characterized in that the dense medium
Plasmid diameter is 60-200 mesh.
5. a kind of dense media described in accordance with the claim 1/salt couples broken wall formula flocculant, which is characterized in that the salt is potassium
At least one of salt, ammonium salt.
6. a kind of dense media/salt couples broken wall formula flocculant according to claim 5, which is characterized in that the sylvite is
At least one of potassium sulfate, potassium chloride.
7. a kind of dense media/salt couples broken wall formula flocculant according to claim 5, which is characterized in that the ammonium salt is
At least one of ammonium sulfate, ammonium chloride.
8. a kind of preparation method of dense media/salt coupling broken wall formula flocculant, including：
Salt is dissolved in water, salting liquid is obtained, dense media is added, and stirred after vacuumizing, it is dry, obtain dense media/salt
Broken wall formula flocculant is coupled, the dosage of wherein a concentration of 50~400g/L of salting liquid, dense media are 100~4000g/L.
9. the preparation method of a kind of dense media/salt coupling broken wall formula flocculant according to claim 8, which is characterized in that
The mixing time is 20~40min；Drying temperature is 60~100 DEG C.
10. a kind of application of dense media as described in claim 1/salt coupling broken wall formula flocculant, which is characterized in that be applied to
Sewage disposal, the specific steps are：Dense media/salt coupling broken wall formula flocculant is put into sewage by 2%~5% mass concentration
In, it stirs 2~4 hours, precipitates 30~60 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449135.4A CN108467097A (en) | 2018-05-11 | 2018-05-11 | A kind of dense media/salt coupling broken wall formula flocculant and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810449135.4A CN108467097A (en) | 2018-05-11 | 2018-05-11 | A kind of dense media/salt coupling broken wall formula flocculant and its preparation method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108467097A true CN108467097A (en) | 2018-08-31 |
Family
ID=63261110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810449135.4A Pending CN108467097A (en) | 2018-05-11 | 2018-05-11 | A kind of dense media/salt coupling broken wall formula flocculant and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108467097A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173556A (en) * | 2011-01-20 | 2011-09-07 | 北京城市排水集团有限责任公司 | Device and method for cell wall breaking in municipal sludge dewatering process |
| US20160152491A1 (en) * | 2014-12-01 | 2016-06-02 | The Board Of Trustees Of The University Of Illinois | System and method for dewatering slurries |
| CN107686225A (en) * | 2017-09-05 | 2018-02-13 | 神美科技有限公司 | A kind of compound type sludge conditioner for sludge dewatering |
-
2018
- 2018-05-11 CN CN201810449135.4A patent/CN108467097A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102173556A (en) * | 2011-01-20 | 2011-09-07 | 北京城市排水集团有限责任公司 | Device and method for cell wall breaking in municipal sludge dewatering process |
| US20160152491A1 (en) * | 2014-12-01 | 2016-06-02 | The Board Of Trustees Of The University Of Illinois | System and method for dewatering slurries |
| CN107686225A (en) * | 2017-09-05 | 2018-02-13 | 神美科技有限公司 | A kind of compound type sludge conditioner for sludge dewatering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105084591B (en) | One kind fluorination high fluoride wastewater treatment technique of work | |
| CN105314815B (en) | A kind of sludge dehydration conditioner and its dewatering | |
| CN104355524B (en) | A kind for the treatment of process of deeply dehydrating sludge | |
| CN102276034B (en) | Process method for removing fluorides in high concentrations of fluoride-containing wastewater from thermal power plant | |
| CN111018283B (en) | Plate-frame filter-pressing dehydration method for river and lake bottom mud | |
| CN105733596A (en) | Soil conditioner for passivation of heavy metals and preparation method of soil conditioner | |
| CN105060579A (en) | Advanced treatment method of fluoride-containing wastewater | |
| CN103145313B (en) | Sludge conditioning agent appropriate for sludge incineration handling and conditioning method | |
| CN106186639B (en) | Gush native regenerative system more than polluted bed mud processing in river lake | |
| CN104773804B (en) | Preparation method of ecological flocculating agent for removing phosphorus and algae in eutrophic water body | |
| CN204325024U (en) | A kind of novel lead-acid storage battery heavy metal waste water treatment system | |
| CN111018282A (en) | Porous biological polymerization agent for dewatering ecological dredging bottom mud of rivers and lakes | |
| CN104150741A (en) | Sludge chemical conditioning method and conditioner | |
| CN107721104A (en) | A kind of waterworks sludge processing method and device | |
| CN205443028U (en) | High dehydration rate device of bed mud | |
| CN108439736A (en) | A method of reducing Heavy Metal Level In Sludge and moisture percentage in sewage sludge | |
| CN108529728A (en) | A kind of dense media/oxidant coupling broken wall formula flocculant and its preparation method and application | |
| CN108467097A (en) | A kind of dense media/salt coupling broken wall formula flocculant and its preparation method and application | |
| CN107540072A (en) | A kind of flocculant solution preparation method and bittern purifying method | |
| CN110092562A (en) | A kind of sludge dewatering by plate-frame method and conditioner used | |
| CN106830251A (en) | Recombination chitosan flocculant and preparation method and application for processing desulfurization wastewater | |
| CN109608020A (en) | A kind of composite flocculation agent and preparation method thereof for Treatment of Sludge | |
| CN104370432A (en) | Sewage processing technology reducing usage amount of flocculating agent | |
| CN212403768U (en) | Coal fired power plant desulfurization waste water self-loopa zero discharge system | |
| CN113461304A (en) | Red mud-based mixed acid chemical conditioner special for deep dehydration of dehydrated sludge and use method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180831 |