CN109534483A - A kind of method for treating water of emergency processing drinking water glyphosate pollution - Google Patents
A kind of method for treating water of emergency processing drinking water glyphosate pollution Download PDFInfo
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- CN109534483A CN109534483A CN201811584625.1A CN201811584625A CN109534483A CN 109534483 A CN109534483 A CN 109534483A CN 201811584625 A CN201811584625 A CN 201811584625A CN 109534483 A CN109534483 A CN 109534483A
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- China
- Prior art keywords
- glyphosate
- water
- ozone
- pollution
- sodium hypochlorite
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Classifications
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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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/306—Pesticides
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a kind of method for treating water for the sudden glyphosate pollution of emergency processing drinking water, and described method includes following steps: step 1: ozone is added in the raw water of Xiang Hanyou glyphosate；Step 2: sodium hypochlorite is added into the glyphosate raw water of step 1 mistake treated by ozone；Step 3: calcium hydroxide and aluminium polychloride are added in the glyphosate raw water crossed to step 2 through sodium hypochlorite combination ozone treatment, is staticly settled；Step 4: will by step 3, treated that water is filtered, glyphosate can be realized from effectively removing in water.Method for treating water combination ozone and sodium hypochlorite synergistic oxidation glyphosate of the invention, can reach 98.7% to the removal rate of raw water glyphosate, can successfully manage the glyphosate pollution to happen suddenly in raw water.Method for treating water of the invention has the advantages that easy to operate, operating efficiency is high, reliable operation, promotion prospect are wide, it can also be used to the conventional process flow of water factory.
Description
Technical field
The present invention relates to a kind of method for treating water more particularly to sodium hypochlorite synergy ozone oxidized glyphosate, reply bursts
The method for treating water of water pollution is mainly used for drinking water emergency processing.
Background technique
Glyphosate, chemically also known as N-(phosphonomethyl) glycine (C3H8NO5It P), is agriculturally most-often used weeding
One of agent, and global one of yield and the most salable pesticide species.
Although glyphosate always with low toxicity, it is harmless the features such as sell well all over the world pesticide market, there is experiment to tie
If fruit shows oral glyphosate, phenomena such as throat's pain just may occur in 20 minutes or vomit, and along with abdominal pain
And symptom of diarrhea；With the presence of tens of kinds of diseases all with the residual causality of human body glyphosate.Meanwhile the stability of oxalic acid phosphorus
Higher, the modes such as conventional redox, absorption are poor to the removal effect of glyphosate.Once breaking out glyphosate in drinking water
Burst pollution, can the health for the treatment of process to water treatment plant and the mankind generate double influence.It can so how to develop one kind
Economic, quick, effective degradation of glyphosate, and to the glyphosate processing side that subsequent biochemical processing links do not adversely affect
Method is the key that cope with such water contamination accident.
Summary of the invention
In order to solve the problems, such as water supply plant conventional treatment process to the glyphosate pollution poor removal effect that happens suddenly in raw water, this hair
It is bright to provide a kind of method for treating water for the sudden glyphosate pollution of emergency processing drinking water, it is polluted for drinking water glyphosate
Accident provides a kind of effective treatment process.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of method for treating water for the sudden glyphosate pollution of emergency processing drinking water, includes the following steps:
Step 1: ozone is added in the raw water of Xiang Hanyou glyphosate；
Step 2: sodium hypochlorite is added into the glyphosate raw water of step 1 mistake treated by ozone；
Step 3: calcium hydroxide and polymerization chlorine are added in the glyphosate raw water crossed to step 2 through sodium hypochlorite combination ozone treatment
Change aluminium, staticly settles；
Step 4: will by step 3, treated that water is filtered, glyphosate can be realized from effectively removing in water.
In the present invention, the dosage of the ozone is 3 ~ 4mg/min, and the O3 contacted oxidation time is 15 ~ 25min, as
A kind of preferably the dosage of ozone is 3mg/min, and the O3 contacted oxidation time is 20min.
In the present invention, depending on the dosage of the sodium hypochlorite is according to the content of water glyphosate, and sodium hypochlorite and grass
The concentration of sweet phosphine is than being preferably 6 ~ 8:1, as a preference, the concentration of sodium hypochlorite and glyphosate ratio 6.25:1.
In the present invention, the dosage of the calcium hydroxide is 25 ~ 35mg/L, and the dosage of aluminium polychloride is 55 ~ 65mg/
L, time of repose is 45 ~ 60min, as a preference, the dosage of calcium hydroxide is 30mg/L, the dosage of aluminium polychloride
For 60mg/L, time of repose 60min.
In method for treating water of the invention, ozone can be glyphosate at small organic molecule, small organic molecule
Followed by by ozone oxidation until permineralization remove；Sodium hypochlorite can occur to react as follows with glyphosate:
。
Compared with the prior art, the present invention has the advantage that
1, method for treating water combination ozone of the invention and sodium hypochlorite synergistic oxidation glyphosate, the removal to raw water glyphosate
Rate can reach 98.7%, can successfully manage the glyphosate pollution to happen suddenly in raw water, water is after sand filtration, biological treatment etc. after processing
After continuing the processing of other water treatment buildings, effluent quality can be lower than in " standards for drinking water quality " (GB 5749-2006)
Defined glyphosate limiting concentration (0.7mgL-1).
2, compared with independent conventional water treatment, method for treating water of the invention solves independent ozone oxidation reaction rate mistake
Slowly, it individually adds sodium hypochlorite pretreatment glyphosate sewage and is discharged the problems such as total chlorine is excessively high.
3, it is excellent to have that easy to operate, operating efficiency is high, reliable operation, promotion prospect are wide to method for treating water of the invention
Point, it can also be used to the conventional process flow of water factory.
Detailed description of the invention
Fig. 1 is O3The removal situation of+NaClO to glyphosate；
Fig. 2 is ozone in 20min to the removal situation of glyphosate；
Fig. 3 is formaldehyde, PO in 20min3 -, water outlet ozone concentration situation of change；
Fig. 4 is removal situation of the sodium hypochlorite to glyphosate.
Specific embodiment
Further description of the technical solution of the present invention With reference to embodiment, and however, it is not limited to this,
It is all that modifying or equivalently replacing the technical solution of the present invention, without departing from the spirit and scope of the technical solution of the present invention,
It should all cover within the protection scope of the present invention.
Specific embodiment 1: present embodiments provide for one kind for the sudden glyphosate pollution of emergency processing drinking water
Method for treating water, the method specific implementation step is as follows:
Step 1: ozone is added in the raw water of Xiang Hanyou glyphosate；
Step 2: sodium hypochlorite is added into the glyphosate raw water of step 1 mistake treated by ozone；
Step 3: calcium hydroxide and polymerization chlorine are added in the glyphosate raw water crossed to step 2 through sodium hypochlorite combination ozone treatment
Change aluminium, staticly settles；
Step 4: will by step 3, treated that water is filtered, glyphosate can be realized from effectively removing in water.
Present embodiment has determined that ozone adds according to the measured data of parameter and experiment that existing water purification factory engineering uses
Amount, the O3 contacted oxidation time, sodium hypochlorite and aniline concentration ratio, calcium hydroxide and aluminium polychloride dosage and standing
Time, in which:
Ozone dosage: excessively high ozone dosage not only will increase cost of water treatment, but also weeding can be gone sweet ozone instead
The effect of phosphine generates negative impact.Because ozone can not only create hydroxyl radical free radical, excessive ozone be simultaneously also hydroxyl from
By the saboteur of base.Excessive ozone can generate super hydrogen oxide and oxygen with the hydroxyl radical reaction generated.This embodiment party
The dosage of ozone is controlled in 3 ~ 4mg/min in formula.
The O3 contacted oxidation time: it is difficult to control the time of contact of ozone and target contaminant, this implementation in Practical Project
The O3 contacted oxidation time is controlled in 15 ~ 25min in mode.
Calcium hydroxide and aluminium polychloride dosage and time of repose: according to existing water purification treatment technology using ginseng
Number, by the dosage control of calcium hydroxide in 25 ~ 35mg/L in present embodiment, the dosage control of aluminium polychloride 55 ~
65mg/L, time of repose are controlled in 45 ~ 60min.
In present embodiment, O3+ NaClO is to the removal situation of glyphosate as shown in Figure 1, with independent ozone reaction and individually
It is as follows to the removal situation comparison of glyphosate to add sodium hypochlorite:
1, it is compared with independent ozone reaction
The ozone of different gradient concentrations is as shown in Figures 2 and 3 to the removal situation of the glyphosate of 80mg/L in 20 minutes.By Fig. 2
And Fig. 3, it is found that when being 20min between when oxidised, control ozone concentration is 4.76mg/min, the removal to 80mg/L glyphosate
Rate just can reach and 3mg/L ozone+sodium hypochlorite effect；The production quantity of formaldehyde is 0.26mg/L simultaneously, may be to subsequent
The microorganism of biochemical treatment cause toxic action.
2, it is compared with independent sodium hypochlorite reaction
It can be seen that the increase with sodium hypochlorite throwing amount from experimental result shown in Fig. 4, the removal rate of glyphosate also rises together
Height, when the sodium hypochlorite of dispensing is 6.25:1 than the mass ratio of glyphosate, the removal rate of raw water glyphosate be can reach
85%.With the NaClO+O for cooperateing with the same concentration of use3It compares, effect difference about 15%.
Specific embodiment 2: present embodiments provide for one kind for the sudden glyphosate pollution of emergency processing drinking water
Method for treating water, the method specific implementation step is as follows:
Step 1: ozone is added in the raw water of Xiang Hanyou 35.89mg/L glyphosate, in which: the dosage of ozone is 3.5mg/
Min, O3 contacted oxidation time are 15min；
Step 2: sodium hypochlorite is added into the glyphosate raw water of step 1 mistake treated by ozone, in which: sodium hypochlorite is sweet with grass
The concentration ratio of phosphine is 6:1；
Step 3: calcium hydroxide and polymerization chlorine are added in the glyphosate raw water crossed to step 2 through sodium hypochlorite combination ozone treatment
Change aluminium, staticly settle, in which: the dosage of calcium hydroxide is 30mg/L, and the dosage of aluminium polychloride is 60mg/L, when standing
Between be 60min；
Step 4: will by step 3, treated that water is filtered, glyphosate can be realized from effectively removing in water.
The method of present embodiment is 80.5% to the average removal rate of raw water glyphosate pollutant, it can be seen that, this reality
The method for treating water for applying mode can have preferable removal effect to raw water glyphosate pollutant.At present embodiment method
For water after reason after subsequent other water treatment buildings processing such as sand filtration, biological treatment, effluent quality can be lower than " life is drunk
Water hygiene standard " glyphosate limiting concentration (0.7mgL specified in (GB 5749-2006)-1).
Specific embodiment 3: present embodiments provide for one kind for the sudden glyphosate pollution of emergency processing drinking water
Method for treating water, the method specific implementation step is as follows:
Step 1: ozone is added in the raw water of Xiang Hanyou 80mg/L glyphosate, in which: the dosage of ozone is 3.5mg/min, smelly
The oxygen catalytic oxidation time is 20min；
Step 2: sodium hypochlorite is added into the glyphosate raw water of step 1 mistake treated by ozone, in which: sodium hypochlorite is sweet with grass
The concentration ratio of phosphine is 6.25:1；
Step 3: calcium hydroxide and polymerization chlorine are added in the glyphosate raw water crossed to step 2 through sodium hypochlorite combination ozone treatment
Change aluminium, staticly settle, in which: the dosage of calcium hydroxide is 30mg/L, and the dosage of aluminium polychloride is 60mg/L, when standing
Between be 60min；
Step 4: will by step 3, treated that water is filtered, glyphosate can be realized from effectively removing in water.
The method of present embodiment is 98.7% to the average removal rate of raw water glyphosate pollutant, it can be seen that, this reality
The method for treating water for applying mode can have preferable removal effect to raw water glyphosate pollutant.At present embodiment method
For water after reason after subsequent other water treatment buildings processing such as sand filtration, biological treatment, effluent quality can be lower than " life is drunk
Water hygiene standard " glyphosate limiting concentration (0.7mgL specified in (GB 5749-2006)-1).
Claims (8)
1. a kind of method for treating water for the sudden glyphosate pollution of emergency processing drinking water, it is characterised in that the method packet
Include following steps:
Step 1: ozone is added in the raw water of Xiang Hanyou glyphosate；
Step 2: sodium hypochlorite is added into the glyphosate raw water of step 1 mistake treated by ozone；
Step 3: calcium hydroxide and polymerization chlorine are added in the glyphosate raw water crossed to step 2 through sodium hypochlorite combination ozone treatment
Change aluminium, staticly settles；
Step 4: will by step 3, treated that water is filtered, glyphosate can be realized from effectively removing in water.
2. the method for treating water according to claim 1 for the sudden glyphosate pollution of emergency processing drinking water, special
Sign is that the dosage of the ozone is 3 ~ 4mg/min, and the O3 contacted oxidation time is 15 ~ 25min.
3. the method for treating water according to claim 1 for the sudden glyphosate pollution of emergency processing drinking water, special
Sign is that the dosage of the ozone is 3mg/min, and the O3 contacted oxidation time is 20min.
4. the method for treating water according to claim 1 for the sudden glyphosate pollution of emergency processing drinking water, special
Sign is depending on the content of dosage foundation water glyphosate of the sodium hypochlorite.
5. the method for treating water according to claim 1 or 4 for the sudden glyphosate pollution of emergency processing drinking water,
The concentration ratio for being characterized in that the sodium hypochlorite and glyphosate is 6 ~ 8:1.
6. the method for treating water according to claim 5 for the sudden glyphosate pollution of emergency processing drinking water, special
Sign is the concentration ratio 6.25:1 of the sodium hypochlorite and glyphosate.
7. the method for treating water according to claim 1 for the sudden glyphosate pollution of emergency processing drinking water, special
Sign is that the dosage of the calcium hydroxide is 25 ~ 35mg/L, and the dosage of aluminium polychloride is 55 ~ 65mg/L, time of repose
For 45 ~ 60min.
8. the method for treating water according to claim 7 for the sudden glyphosate pollution of emergency processing drinking water, special
Sign is that the dosage of the calcium hydroxide is 30mg/L, and the dosage of aluminium polychloride is 60mg/L, and time of repose is
60min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811584625.1A CN109534483A (en) | 2018-12-24 | 2018-12-24 | A kind of method for treating water of emergency processing drinking water glyphosate pollution |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811584625.1A CN109534483A (en) | 2018-12-24 | 2018-12-24 | A kind of method for treating water of emergency processing drinking water glyphosate pollution |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557736A (en) * | 2004-01-14 | 2004-12-29 | 哈尔滨工业大学 | Oxidation coagulation aiding method using ozone and potassium permanganate |
| CN102001792A (en) * | 2010-11-28 | 2011-04-06 | 江苏蓝星环保科技有限公司 | Glyphosate wastewater treatment method |
| CN104193057A (en) * | 2014-09-25 | 2014-12-10 | 哈尔滨工业大学 | Water treatment method for emergency treatment of sudden organic pollutant pollution of drinking water source |
-
2018
- 2018-12-24 CN CN201811584625.1A patent/CN109534483A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1557736A (en) * | 2004-01-14 | 2004-12-29 | 哈尔滨工业大学 | Oxidation coagulation aiding method using ozone and potassium permanganate |
| CN102001792A (en) * | 2010-11-28 | 2011-04-06 | 江苏蓝星环保科技有限公司 | Glyphosate wastewater treatment method |
| CN104193057A (en) * | 2014-09-25 | 2014-12-10 | 哈尔滨工业大学 | Water treatment method for emergency treatment of sudden organic pollutant pollution of drinking water source |
Non-Patent Citations (1)
| Title |
|---|
| 潘云浩: "中国优秀硕士学位论文全文数据库 工程科技I辑", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
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Application publication date: 20190329 |