CN109626530A - A kind of synchronous dephosphorization of landscape water body with high salt is except algae built-up flocculant and preparation method thereof - Google Patents
A kind of synchronous dephosphorization of landscape water body with high salt is except algae built-up flocculant and preparation method thereof Download PDFInfo
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- CN109626530A CN109626530A CN201811578703.7A CN201811578703A CN109626530A CN 109626530 A CN109626530 A CN 109626530A CN 201811578703 A CN201811578703 A CN 201811578703A CN 109626530 A CN109626530 A CN 109626530A
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- flocculant
- built
- dephosphorization
- water body
- algae
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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
- 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
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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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/20—Prevention of biofouling
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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 sewage treatment field, specifically a kind of landscape water body with high salt synchronizes dephosphorization except algae built-up flocculant and preparation method thereof.The invention discloses a kind of synchronous dephosphorization of landscape water body with high salt except algae built-up flocculant and preparation method thereof, is compounded by aluminium polychloride (PAC) and cationic polyacrylamide (CPAM) with a certain concentration ratio.After aluminium polychloride (PAC), cationic polyacrylamide (CPAM) plus water are configured to certain concentration solution respectively, the two is sufficiently mixed.Built-up flocculant of the present invention overcomes haline water dephosphorization and is difficult to and synchronizes the problems such as dephosphorization is difficult except algae, and synchronous to remove phosphorus, algae in landscape water body with high salt, settling velocity is fast, and wadding body amount is few, high treating effect.
Description
Technical field
The present invention relates to sewage treatment field, the synchronous dephosphorization of specifically a kind of landscape water body with high salt except algae built-up flocculant and
Preparation method.
Background technique
Freshwater ecosystems salinization of soil is a worldwide emerging environmental problem.Recent decades, due to winter road
The use of road salt causes Freshwater ecosystems salinity to steeply rise.With China's rapid economic development, urbanization process adds
Fastly, city Permeable stratum area increases, and the usage amount of salt increases, to more exacerbate city fresh water salinization of soil problem.Landscape water body
It is located in inside cities and towns, salinization and alkalization is especially prominent in the fresh water of city.
Salt content is excessively high to be unfavorable for aquatic animals and plants growth, and algae is wider to the adaptation range of salinity.When salinity is up to
When 10-15g/L, the growth of chlorella is not had a significant impact yet.In landscape water body with high salt, algae is not due to competing, easily
As advantage group, and alga eruption occurs.
Nitrogen, phosphorus are the main nutrient elements of algal grown, and wherein influence of the phosphorus to algae is better than influence of the nitrogen to algae, I
The general landscape waters water body index request of regulation is more than V class in state's " water environment quality standard " (GB 3838-2002), V
Require river water body TP content in 0.4mg/L and following in class." urban sewage reutilization water for scenic environment use water quality " (GB
Regulation is for ornamental value water for scenic environment use TP concentration in 1mg/L or less in 18921-2002).Spring content of inorganic phosphorus exists
Alga eruption can just be made when 0.01mg/L, and landscape water body TP content is significantly larger than 0.01mg/L.
Because the invention controls landscape water body alga eruption from two aspects, algae is on the one hand removed, is on the other hand reduced
Phosphorus content.
In current research both domestic and external, the removal to phosphorus in water mostly uses bioanalysis or chemical method.And to haline water, if
Using biological phosphate-eliminating, when salinity is 5g/L, hydraulic detention time is 18h, the removal rate of PO43--P is only 15%；And salt
When degree is greater than 5g/L, then biological phosphate-eliminating can not be carried out.This is because in saline environment, salinity in polyP bacteria cell inner accumulation,
Intracellular osmotic pressure is caused to sharply increase, so that polyP bacteria loses the ability for absorbing phosphorus, so that biological phosphate-eliminating can not be carried out.With this
Meanwhile flocculence has both preferable treatment effect to dephosphorization, except algae in chemical dephosphorization, and medicament used also has intersection.
Currently, to using flocculence simultaneously dephosphorization, except the research of algae it is very few, especially with respect to landscape water body with high salt simultaneously dephosphorization, except algae wad a quilt with cotton
The patent of solidifying agent and preparation method thereof is not also visible.
Therefore, to make water quality of landscape water with high salt be up to state standards and can effectively inhibit the generation of alga eruption problem,
Find out it is efficient and economical, suitable for haline water dephosphorization simultaneously, except the flocculant formula of algae it is particularly significant, but at present to this respect
Research it is also very deficient.
Summary of the invention
The purpose of the present invention is to provide a kind of synchronous dephosphorization of landscape water body with high salt to remove algae built-up flocculant and its preparation side
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of synchronous dephosphorization of landscape water body with high salt removes algae built-up flocculant, by aluminium polychloride (PAC) and cation poly- third
Acrylamide (CPAM) presses (20mg/L): the concentration ratio of (3mg/L) compounds.
A kind of landscape water body synchronization dephosphorization with high salt removes the preparation method of algae built-up flocculant, by aluminium polychloride
(PAC) after adding water to be configured to the solution of respective concentration according to the proportion with cationic polyacrylamide (CPAM), the two is sufficiently mixed,
?.
Tellable to be, the aluminium that aluminium polychloride (PAC) resolves into variform in the solution generates wadding body in conjunction with phosphorus
Precipitating, and increase wadding body partial size the effects of catch by aluminium salt adsorption bridging, charge neutrality, net, make its rapid subsidence, so as to by water
In phosphorus ligands, excellent, while the wadding body that generates during dephosphorization of aluminium polychloride (PAC) generates net to algae and catches work
With so that it also has very high removal rate to algae, but aluminium polychloride (PAC) processing haves the shortcomings that wadding body amount is big.And it is positive
Cationic polyacrylamide (CPAM) is very good except algae effect, and generates in addition to algae wadding body without other wadding bodies, and supernatant clarification is saturating
It is bright.It is therefore possible to use cationic polyacrylamide (CPAM) and aluminium polychloride (PAC) compounding, by cation polypropylene acyl
Auxiliary flocculant of the amine (CPAM) as aluminium polychloride (PAC) reduces wadding body amount, experiments have shown that built-up flocculant has very well
Synchronization dephosphorization remove algae effect.
The dosing method of flocculant of the present invention adds for wet type, and dosage is 10ml (built-up flocculant)/L (landscape with high salt
Water body).
Compared with prior art, the beneficial effects of the present invention are:
(1) defect that phosphorus, algae in tradition landscape water body with high salt are difficult to synchronization process is overcome, it is at low cost, effect is good.
(2) flocculant of the present invention mechanism and the water such as catches using adsorption bridging, charge neutrality, net by aluminium polychloride (PAC)
Middle phosphorus, which combines, forms wadding body rapid subsidence, and the wadding body of generation generates the net effect of catching to algae in water, reaches synchronous dephosphorization except algae is imitated
Fruit, while auxiliary flocculant of the cation compounded in polyacrylamide (CPAM) as aluminium polychloride (PAC), reduce wadding body
Amount.It is good to phosphorus, the synchronous removal effect of algae by this method built-up flocculant, while wadding body is few, effect of settling is good.
(3) flocculant of the present invention handles landscape water body with high salt, the total tp removal rate of processed waste water 96% or more,
Chla (chlorophyll a, for characterizing algae content) removal rate is up to 99.4%.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiment is only section Example of the present invention, instead of all the embodiments.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
Embodiment
Built-up flocculant presses (5mg/L) by aluminium polychloride (PAC), cationic polyacrylamide (CPAM): (3mg/L's)
Concentration ratio compounds, and is configured to mixed solution.
Flocculant made of 4ml is compounded is added in 400ml landscape water body algae solution with high salt, and wherein total phosphorus concentration is
3.25mg/L, Chla (chlorophyll a) concentration are 4.67mg/L.Flocculation quickly stirs 3min using 200r/min, and 50r/min is at a slow speed
0.5min is stirred, supernatant is taken after standing 40min, carries out the measurement of total phosphorus, Chla.Total phosphorus in water after measurement flocculation: 0.12mg/
L, removal rate 96.31%；Chla:0.028mg/L, removal rate 99.4%.Reach " water environment quality standard " (GB 3838-
2002) the V class standard of general landscape waters water body index in, TP content is in 0.4mg/L and following.Meet water eutrophication simultaneously
Change chlorophyll a limit value, Chla content is in 0.03mg/L or less
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore no matter from
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended right
It is required that rather than above description limit, it is intended that all changes that will be fallen within the meaning and scope of the equivalent elements of the claims
Change is included within the present invention.
Claims (2)
1. a kind of landscape water body with high salt synchronizes dephosphorization and removes algae built-up flocculant, which is characterized in that by aluminium polychloride (PAC) and sun
Cationic polyacrylamide (CPAM) presses (20mg/L): the concentration ratio of (3mg/L) compounds.
2. a kind of landscape water body with high salt as described in claim 1 synchronizes the preparation method that dephosphorization removes algae built-up flocculant, special
Sign is, aluminium polychloride (PAC) and cationic polyacrylamide (CPAM) are configured to respective concentration according to the ratio, carries out abundant
Mixing, is prepared into built-up flocculant.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811578703.7A CN109626530A (en) | 2018-12-21 | 2018-12-21 | A kind of synchronous dephosphorization of landscape water body with high salt is except algae built-up flocculant and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811578703.7A CN109626530A (en) | 2018-12-21 | 2018-12-21 | A kind of synchronous dephosphorization of landscape water body with high salt is except algae built-up flocculant and preparation method thereof |
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| CN109626530A true CN109626530A (en) | 2019-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455774A (en) * | 2021-12-29 | 2022-05-10 | 河南中汇环保科技有限公司 | Ecological safety flocculant water transparency improving method |
Citations (2)
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|---|---|---|---|---|
| CN101139124A (en) * | 2007-08-14 | 2008-03-12 | 江苏鼎泽环境工程有限公司 | Blue algae volume reduction technique |
| WO2008096988A1 (en) * | 2007-02-05 | 2008-08-14 | Enbio 21 Co., Ltd. | Chemical reagent for the purpose of simultaneous treatment of n, p and microalgae for prevention eutrophication of water bodies |
-
2018
- 2018-12-21 CN CN201811578703.7A patent/CN109626530A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008096988A1 (en) * | 2007-02-05 | 2008-08-14 | Enbio 21 Co., Ltd. | Chemical reagent for the purpose of simultaneous treatment of n, p and microalgae for prevention eutrophication of water bodies |
| CN101139124A (en) * | 2007-08-14 | 2008-03-12 | 江苏鼎泽环境工程有限公司 | Blue algae volume reduction technique |
Non-Patent Citations (2)
| Title |
|---|
| 王丹等: "强化混凝技术对南淝河季节性污染物去除效果研究", 《水资源保护》 * |
| 陈静等: "聚合氯化铝絮凝剂深度除磷实验研究", 《环境工程学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114455774A (en) * | 2021-12-29 | 2022-05-10 | 河南中汇环保科技有限公司 | Ecological safety flocculant water transparency improving method |
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Application publication date: 20190416 |