CN107324466A - Method is prepared in situ in a kind of river course water treatment coagulant - Google Patents
Method is prepared in situ in a kind of river course water treatment coagulant Download PDFInfo
- Publication number
- CN107324466A CN107324466A CN201710626934.XA CN201710626934A CN107324466A CN 107324466 A CN107324466 A CN 107324466A CN 201710626934 A CN201710626934 A CN 201710626934A CN 107324466 A CN107324466 A CN 107324466A
- Authority
- CN
- China
- Prior art keywords
- water treatment
- river course
- prepared
- situ
- coagulant
- 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
- C02F1/5209—Regulation methods for flocculation or precipitation
-
- 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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
Landscapes
- 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 river course water treatment field, have that added amount of chemical is bigger than normal to solve city river landscape water process, and a low-down problem of clearance of ammonia nitrogen, what the present invention proposed a kind of river course water treatment coagulant is prepared in situ method, on the basis of water treatment coagulant finished product, by diluting Al2O3Mass percent further heighten basicity for 1% 1.5% alkaline matters that 0.1 0.3N concentration is added after, aluminium ion in coagulant is further formed macromolecular polymeric state structure, enhance rapid response capacity and water treatment efficiency.
Description
Technical field
The present invention relates to river course water treatment field, and in particular to method is prepared in situ in a kind of river course water treatment coagulant.
Background technology
As the requirement to city river landscape water is further improved, the water quality requirement of urban river reaches ground Table III
Class.But riverway sludge etc. can influence quality of river water, the cleaning of riverway sludge and the reparation of ecological management and river channel ecology are again
The very long process of one comparison.Current urban river is substantially V class water, periodically introduces quality germplasm water to replace V so taking
Class water, or just necessitated come materializing strategy urban river water using the landscape dam in inland river, and the water introduced is also by river course lock
The facility of mouth carrys out the source water of materializing strategy introducing.
The process of materialization water process is exactly, by adding Flocculation Settling Process after coagulant, to pass through Flocculation Settling Process, drop
The turbidity of low water body, increase river course can see depth, and go dephosphorization and partial organic substances, but the clearance of ammonia nitrogen is very low.Due to
The long-term use of ferric flocculant can cause water body to carry iron rust color, and coagulant used is usually aluminium salt, including aluminum sulfate
And aluminium polychloride.Because such river course water processing establishment is simple, the flocculation stirring time of coagulant is short, the intensity and speed of stirring
Degree gradient is all difficult to the stirring condition for reaching the flocculation reaction of conventional coagulant, causes added amount of chemical bigger than normal, and ammonia nitrogen
Clearance is very low.
The content of the invention
Have that added amount of chemical is bigger than normal to solve city river landscape water process, and the clearance of ammonia nitrogen low-down is asked
Topic, the present invention proposes a kind of method that is prepared in situ of river course water treatment coagulant, can fast reaction, rapid and water-borne glue precursor reactant
Flco is formed, and the clearance of ammonia nitrogen can be improved.
The present invention is achieved by the following technical solutions, and method bag is prepared in situ in a kind of river course water treatment coagulant
Include：
(1) in stirring container, aluminum salt is first diluted to Al with water2O3Mass percent be 1%-1.5%；
Preferably, described aluminum salt, the aluminium polychloride selected from basicity 45-75%, basicity 45-75%
PAFC, one or more of in aluminum sulfate.
(2) alkaline matter is diluted to OH with water in another stirring container-Equivalent concentration be 0.1-0.3N；
Preferably, described alkaline matter is one or more of in sodium hydroxide, calcium hydroxide.Usage amount is aluminium salt
Al in coagulant2O3The 30-50% of quality.
Above-mentioned water is preferably River Landscape water.
(3) alkaline matter is added in the agitator tank of aluminum salt with measuring pump, mixed two kinds of medicaments by stirring
Merge reaction 5-30 minutes；Obtain river course water treatment coagulant；
Al in river course water treatment coagulant2O3Mass percent be 0.3%-1.0%, basicity is 60-95%.River course
The density 1.02-1.08 grams per milliliters of water treatment coagulant, pH value is 3-4.
(4) by river course water process coagulant dosage into River Landscape water body.
The present invention is to utilize ready-made aluminium salt class coagulant, is reprocessed at the scene according to the hydrolysis properties of aluminium salt.Change
Learning reaction equation is：
Al2(SO4)3+Ca(OH)2→Al(OH)1.8 +1.2++Ca SO4；
Al(OH)1.95Cl1.05+NaOH→Al(OH)2.85Cl0.15++NaCl。
The aluminium salt of general River Landscape water is in Al3+Molar concentration 0.2mol/L or following, can be formed when basicity is heightened
Substantial amounts of multinuclear aluminium ion, and long-chain molecule can be formed by hydrogen bond.
The product of general aluminium salt class, in the case of corresponding national Specification, Al3+Molar concentration all in 1-2M, than
Such as Al2O3Mass percent for 10% liquid aluminium polychloride in Al3+Molar concentration is 1.8M or so, Al2O3Quality
Al3+ molar concentration is 1.2M in the aluminum sulfate that percentage is 7.8%, and Al is found through experiments that3+Molar concentration is all 1-2M's
In the case of, the Al in high basicity13(Al13It is a kind of ionic polymerization form that aluminium ion exists in the solution) it is difficult to stablize shape
Into, cause flocculating effect of the product basicity in 40-75% optimal, basicity is further raised, in product multinuclear polymerize from
Son is reduced on the contrary, and flocculating effect is with decline.And during basicity is adjusted, the OH- concentration of the alkaline matter of addition
It is high so that the Al in product3+The polymeric species of macromolecular are not directly formed, but have been initially formed gel aluminum hydroxide, then it is molten
The process of solution, causes the performance of product to decline on the contrary.
Using field fabrication low concentration, the coagulant of the aluminium salt system of high basicity, the Al of optimal morphology can be obtained13, and
Just it is added in city river landscape water body when optimal flocculating effect can be formed, the dosage of medicament can be greatly reduced, and
Water treatment efficiency is improved, raising includes the clearances such as turbidity, phosphorus, ammonia nitrogen.
The present invention is on the basis of basicity is 40-75% aluminium polychloride or aluminum sulfate, to add sodium hydroxide, stone
The alkaline matters such as ash, improve product basicity, ensure the Al of product during basicity is adjusted3+Molar concentration 0.2M with
Under, the OH- of the alkaline matter added equivalent concentration is 0.1-0.3N, in order to avoid Al3+In high concentration OH-In the case of form hydrogen
Alumina gel, is conducive to the aluminium ion in product to form the method for the polymeric species of macromolecular to improve product flocculating effect.
Compared with prior art, the beneficial effects of the invention are as follows：
(1)) can fast reaction, the effluent quality after energy raising processing.
(2) there is excellent turbidity, organic removal rate and phosphorus, the clearance of ammonia nitrogen is improved.
Embodiment
Below by embodiment, technical scheme is described in further detail.It is raw materials used in embodiment
It is commercially available.
Embodiment 1：
100 grams of basicities are weighed for 65%, Al2O3Mass percent is 10.2% aluminium polychloride, is diluted with water
1000 grams, then 32% 22.5 grams of liquid sodium hydroxide is weighed, 800 grams are diluted to, the polymerization chlorine diluted is added while stirring
Change in aluminum solutions.Stirring 10 minutes, obtains Al2O3Mass percent is：0.57%, basicity is 95% aluminium polychloride.So
After be added in River Landscape water body.
Embodiment 2：
100 grams of basicities are weighed for 0%, Al2O3Mass percent is 7% aluminum sulfate, is diluted with water to 700 grams, then claim
35 grams of solid calcium hydroxide is taken, 1200 grams are diluted to, added while stirring in the sulfuric acid solution diluted.Stirring 10 minutes, is obtained
To Al2O3Mass percent is：0.37%, basicity is 65% aluminum salt.It is added in River Landscape water body.
Embodiment 3
100 grams of basicities are called 45%, Al2O3Mass percent is 10.5% aluminium polychloride, is diluted with water to 1000
Gram, 26.5 grams of the liquid sodium hydroxide of title 32% is diluted to 1000 grams, and the polymeric aluminum chlorides solution diluted is added while stirring
In.Stirring 10 minutes, obtains Al2O3Mass percent is：0.53%, basicity is 80% aluminium polychloride.It is added to river course
In landscape water body.
Test case
The following is the using effect contrast of example 1,2,3 and aluminium polychloride in certain inland river diversion processing
The specific embodiment of the present invention is the foregoing is only, but the architectural feature of the present invention is not limited thereto, Ren Heben
The technical staff in field is in the field of the invention, and the change or modification made all are covered among the scope of the claims of the present invention.
Claims (6)
1. method is prepared in situ in a kind of river course water treatment coagulant, it is characterised in that described method includes：
（1）In stirring container, aluminum salt is first diluted to Al with water2O3Mass percent be 1%-1.5%；
（2）Alkaline matter is diluted to OH with water in another stirring container-Equivalent concentration be 0.1-0.3N；
（3）Alkaline matter is added in the agitator tank of aluminum salt with measuring pump, mixed two kinds of medicaments simultaneously by stirring
Reaction 5-30 minutes；Obtain river course water treatment coagulant；
（4）By river course water process coagulant dosage into water body.
2. method is prepared in situ in a kind of river course water treatment coagulant according to claim 1, it is characterised in that described
One in aluminum salt, the aluminium polychloride selected from basicity 45-75%, basicity 45-75% PAFC, aluminum sulfate
Plant or several.
3. method is prepared in situ in a kind of river course water treatment coagulant according to claim 1, it is characterised in that described
Alkaline matter is one or more of in sodium hydroxide, calcium hydroxide.
4. method is prepared in situ in a kind of river course water treatment coagulant according to claim 1 or 3, it is characterised in that use
Measure as Al in aluminum salt2O3The 30-50% of quality.
5. method is prepared in situ in a kind of river course water treatment coagulant according to claim 1, it is characterised in that described
Step（3）Al in river course water treatment coagulant2O3Mass percent be 0.3%-1.0%, basicity is 60-95%.
6. method is prepared in situ in a kind of river course water treatment coagulant according to claim 1 or 5, it is characterised in that river
The density 1.02-1.08 grams per milliliters of road water treatment coagulant, pH value is 3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626934.XA CN107324466A (en) | 2017-07-27 | 2017-07-27 | Method is prepared in situ in a kind of river course water treatment coagulant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710626934.XA CN107324466A (en) | 2017-07-27 | 2017-07-27 | Method is prepared in situ in a kind of river course water treatment coagulant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107324466A true CN107324466A (en) | 2017-11-07 |
Family
ID=60226390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710626934.XA Pending CN107324466A (en) | 2017-07-27 | 2017-07-27 | Method is prepared in situ in a kind of river course water treatment coagulant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107324466A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638875A (en) * | 2017-11-21 | 2018-01-30 | 马鞍山松鹤信息科技有限公司 | A kind for the treatment of of dyeing wastewater Special adsorbent and preparation method thereof |
| SE1800035A1 (en) * | 2018-02-12 | 2019-08-13 | Ulmert David | Method to optimize the chemical precipitation process in water and sewage treatment plants |
| CN112047421A (en) * | 2020-09-08 | 2020-12-08 | 中国科学院南京地理与湖泊研究所 | Natural water body phosphorus control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002143607A (en) * | 2000-11-10 | 2002-05-21 | Yuji Sekine | Water treating flocculant, method for producing the same and method for treating water |
| CN101264964A (en) * | 2007-04-26 | 2008-09-17 | 北京科技大学 | Method for preparing high-A113 content high-concentration polymerized aluminum water solution and device thereof |
| US20130224140A1 (en) * | 2010-11-02 | 2013-08-29 | Colgate-Palmolive Company | Aluminum Salt Containing High Percentage of Al30 |
| CN106395917A (en) * | 2016-12-06 | 2017-02-15 | 长江大学 | PAFC (polyamuminum ferric chloride) liquid product and preparation method thereof |
-
2017
- 2017-07-27 CN CN201710626934.XA patent/CN107324466A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002143607A (en) * | 2000-11-10 | 2002-05-21 | Yuji Sekine | Water treating flocculant, method for producing the same and method for treating water |
| CN101264964A (en) * | 2007-04-26 | 2008-09-17 | 北京科技大学 | Method for preparing high-A113 content high-concentration polymerized aluminum water solution and device thereof |
| US20130224140A1 (en) * | 2010-11-02 | 2013-08-29 | Colgate-Palmolive Company | Aluminum Salt Containing High Percentage of Al30 |
| CN106395917A (en) * | 2016-12-06 | 2017-02-15 | 长江大学 | PAFC (polyamuminum ferric chloride) liquid product and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 温丽霞: "Al30的生成条件及其絮凝效果的研究", 《中国优秀硕士学位论文工程科技Ι辑》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107638875A (en) * | 2017-11-21 | 2018-01-30 | 马鞍山松鹤信息科技有限公司 | A kind for the treatment of of dyeing wastewater Special adsorbent and preparation method thereof |
| SE1800035A1 (en) * | 2018-02-12 | 2019-08-13 | Ulmert David | Method to optimize the chemical precipitation process in water and sewage treatment plants |
| WO2019156621A1 (en) * | 2018-02-12 | 2019-08-15 | David Ulmert | Method of optimizing the chemical precipitation process in water treatment plants and waste water treatment plants |
| US11708282B2 (en) | 2018-02-12 | 2023-07-25 | David Ulmert | Method of optimizing the chemical precipitation process in water treatment plants and waste water treatment plants |
| CN112047421A (en) * | 2020-09-08 | 2020-12-08 | 中国科学院南京地理与湖泊研究所 | Natural water body phosphorus control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102276034B (en) | Process method for removing fluorides in high concentrations of fluoride-containing wastewater from thermal power plant | |
| CN104556331B (en) | PAC (polyaluminium chloride)-modified sodium alginate inorganic-organic composite flocculant and preparation method thereof | |
| KR101409870B1 (en) | Method of Preparation for High basicity polyaluminum chloride coagulant and Treating Method of water/wastewater using the same | |
| CN103342406B (en) | Polymeric silicic acid-polyferric sulfate titanium inorganic macromolecular composite flocculant and preparation method and application thereof | |
| KR101159236B1 (en) | Method of preparation for low basicity polyaluminum chloride coagulant and treating method of water/wastewater using the same | |
| CN107601716A (en) | The method for improving guanite precipitation method processing ammonia nitrogen waste water efficiency | |
| CN212450783U (en) | Sewage treatment system for removing silicon and hardness | |
| CN111892142A (en) | Silicon removal agent, silicon removal and hardness removal sewage treatment system and method | |
| CN108178262B (en) | Inorganic-organic composite polymeric flocculant with high aluminum ion concentration | |
| CN107324466A (en) | Method is prepared in situ in a kind of river course water treatment coagulant | |
| CN111484115A (en) | Novel sewage phosphorus removal agent and preparation and application methods thereof | |
| CN106277430B (en) | A kind of fracturing outlet liquid processing and circulation utilization method suitable for gas well | |
| CN101492192B (en) | Coagulating agent for treating wastewater containing fluorine and use process thereof | |
| CN107720912A (en) | The preparation method of poly aluminium iron silicate dimethyl diallyl ammonium chloride composite flocculation agent | |
| US20210032114A1 (en) | A Method of Preparing Inorganic Macromolecular Flocculant by Polymerizing Silicate and Zirconium Chloride | |
| CN104724805B (en) | Polymeric silicic acid and polymeric titanium chloride inorganic polymer composite flocculant (PTSC) and preparation method and application thereof | |
| CN104974454B (en) | A kind of flocculant and preparation method thereof | |
| CN103964554B (en) | Polyaluminum sulfate titanium-polydimethyldiallylachloride chloride composite coagulant and preparation and application method thereof | |
| CN108793356A (en) | A kind of preparation method for handling the bodied ferric sulfate crystal of industrial wastewater | |
| CN105236536B (en) | A kind of preparation method for steel and iron industry sewage flocculant | |
| CN104118925B (en) | A kind of composite inorganic flocculation agent | |
| CN104211106B (en) | A kind of carbonated rare earth preparation method not producing ammonia nitrogen waste water | |
| CN104478051A (en) | Method for preparing poly-aluminum ferric silicate sulfate flocculating agent | |
| CN107445270A (en) | A kind of preparation method of polymeric aluminium ferrum silicate | |
| CN108773887A (en) | Preparation method of Organic-inorganic composite high polymer coagulant and products thereof and application |
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 |
Application publication date: 20171107 |
|
| RJ01 | Rejection of invention patent application after publication |