CN112960796A - Method for removing sulfadimidine in wastewater - Google Patents
Method for removing sulfadimidine in wastewater Download PDFInfo
- Publication number
- CN112960796A CN112960796A CN202110133865.5A CN202110133865A CN112960796A CN 112960796 A CN112960796 A CN 112960796A CN 202110133865 A CN202110133865 A CN 202110133865A CN 112960796 A CN112960796 A CN 112960796A
- Authority
- CN
- China
- Prior art keywords
- wastewater
- sulfadimidine
- persulfate
- sulfamethazine
- adjusting
- 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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/422—Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
-
- 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
-
- 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
- C02F2101/40—Organic compounds containing sulfur
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
Landscapes
- 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)
- Removal Of Specific Substances (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention provides a method for removing sulfadimidine in wastewater. The method comprises the steps of filtering the wastewater, removing insoluble substances in the wastewater, adjusting the pH value of the wastewater, adding persulfate into the wastewater, uniformly mixing, adding ion exchange resin into the wastewater treated in the previous step, standing after reaction, adjusting the pH value of the wastewater, discharging supernatant, and recovering precipitates. The method for removing the sulfamethazine from the wastewater adopts the cheap and easily-obtained strong oxidant sodium persulfate, and generates sulfate radicals and hydroxyl radicals with strong oxidability after catalytic activation, compared with other common strong oxidants such as Cl2、ClO2、ClO‑Etc. ofStronger oxidizing ability, less chemical reagent adding amount, economy and high removal rate.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to a method for removing sulfadimidine in wastewater.
Background
In recent years, with the rapid development of the pharmaceutical industry, pharmaceutical wastewater has become one of serious pollution sources. Sulfanilamide antibiotics are a general name of artificially synthesized drugs with a sulfanilamide structure, are widely used for preventing and treating bacterial infectious diseases, are one of antibiotic drugs with the largest production and use amount, are pollutants frequently detected in waste water and surface water, and pose a potential threat to the environment.
In the related art, the treatment of sulfonamide wastewater is mainly performed by the traditional physical and chemical methods, such as a solid-liquid separation method, an adsorption method and the like; and biological methods such as Activated Sludge Process, Sequencing Batch Reactor Activated Sludge Process (SBR) and Membrane Bioreactor (MBR), however, the above methods have poor effect on sulfanilamide wastewater treatment.
In addition, CN108355610A discloses a method for degrading sulfadimidine by a mesoporous carbon-loaded zero-valent iron composite material, wherein the method utilizes the synergistic effect of the composite material to continuously activate sodium persulfate to generate sulfate radicals to degrade sulfadimidine, thereby enhancing the degradation effect of sulfadimidine. CN109289851A discloses a method for preparing FeO/mesoporous carbon composite material degradation sulfadimethy pyrimidine by a one-step synthesis method, in the method, the prepared FeO/mesoporous carbon composite material is used for treating sulfonamide antibiotic wastewater which is difficult to biodegrade, so that the biodegradability of the sulfonamide antibiotic wastewater can be improved, and the method has the characteristics of simple, convenient and feasible operation steps and environmental friendliness. However, the above method still has the problems of low removal efficiency, severe material preparation and limited application.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems in the prior art. Therefore, the invention provides a method for removing sulfadimidine in wastewater.
The method for removing sulfadimidine in wastewater comprises the following steps:
s1: filtering the wastewater, removing insoluble substances in the wastewater, adjusting the pH value of the wastewater, adding persulfate into the wastewater, and uniformly mixing;
s2: adding ion exchange resin into the wastewater treated in the step S1, adjusting the pH of the wastewater after reaction, standing, discharging supernatant, and recovering precipitate.
According to some embodiments of the invention, in step S1, the pH of the wastewater is 3-5.
According to some embodiments of the invention, in step S1, the agent for adjusting the pH of the wastewater is NaOH or H2SO4。
According to some embodiments of the invention, the persulfate is sodium persulfate.
According to some embodiments of the invention, the persulfate is added at step S1 to provide a wastewater persulfate concentration of 8mmol/L to 15 mmol/L.
According to some embodiments of the present invention, the ion exchange resin is added in an amount of 6g/L to 10g/L in step S2.
According to some embodiments of the invention, the ion exchange resin is a quaternary amine type ion exchange resin with polypropylene as a precursor.
According to some embodiments of the invention, the particle size of the quaternary amine ion exchange resin with polypropylene as a matrix is 150 μm to 180 μm.
According to some embodiments of the invention, the polypropylene-based quaternary amine ion exchange resin has pores less than 45 nm.
According to some embodiments of the invention, the density of the polypropylene-based quaternary amine ion exchange resin is about 1.02g/cm3。
According to some embodiments of the present invention, the quaternary amine ion exchange resin based on polypropylene is magnetic and facilitates rapid solid-liquid separation.
According to some embodiments of the invention, the quaternary amine type ion exchange resin with polypropylene as a precursor is a MIEX resin.
The waste water in the invention refers to sulfonamide waste water.
Due to Na2S2O8Stable at normal temperature and unobvious oxidation capability, and can generate sulfate radical (SO) with strong oxidation property after activation treatment such as transition metal treatment and heat treatment4 -·，E02.5 to 3.1V) and a hydroxyl radical (. OH, E)0＝2.8V)。
In the removing method of the invention, MIEX magnetic resin (the magnet is gamma-Fe) is added2O3) Capable of catalytically activating Na2S2O8Free radicals with strong oxidizing property are generated, thereby degrading the sulfamethazine in the wastewater.
The MIEX magnetic resin contains gamma-Fe2O3The oxidizing ability of sodium persulfate can be enhanced, and the effect is most preferable when the pH is adjusted to 3 to 5 in step S1.
In the step S1, when the pH is more than 3-5, sulfuric acid can be added for adjustment; when the pH value is less than 3-5, NaOH can be added for adjustment.
According to some embodiments of the invention, in step S2, the reaction is carried out for 1 to 2 hours.
According to some embodiments of the invention, in step S2, before the standing treatment, the pH of the wastewater is adjusted to 8-9.
According to some embodiments of the invention, the agent used to adjust the pH of the wastewater is NaOH.
According to some embodiments of the invention, in step S2, the standing treatment time is 30min to 40 min.
The method for removing the sulfamethazine in the wastewater at least has the following beneficial effects:
the method for removing the sulfamethazine from the wastewater adopts the cheap and easily-obtained strong oxidant sodium persulfate, and generates sulfate radicals and hydroxyl radicals with strong oxidability after catalytic activation, compared with other common strong oxidants such as Cl2、ClO2、ClO-And the oxidation capacity is stronger, and the sulfamethazine can be effectively degraded.
According to the method for removing the sulfadimidine in the wastewater, the MIEX magnetic resin is adopted, on one hand, the effect of catalyzing and activating persulfate is achieved, on the other hand, when the pH value of the wastewater is adjusted to be alkaline by NaOH, the sulfadimidine forms sodium salt, and the resin is strong-alkaline anion resin and can adsorb residual sulfadimidine existing in an anion form.
The method for removing the sulfamethazine in the wastewater has the advantages of less chemical reagent adding amount, economy and high removal rate.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention will be further described with reference to the examples, but the present invention is not limited to the examples.
Example 1
In the embodiment, the wastewater containing the sulfamethazine is treated, and the content of the sulfamethazine in the wastewater is 11 mg/L.
The treatment method specifically comprises the following steps:
s1: collecting 250mL of the above wastewater, filtering off insoluble substances, and purifying with H2SO4Adjusting the pH value of the solution and NaOH solution to 5, adding sodium persulfate until the concentration is 8mmol/L, and uniformly mixing;
s2: 1.5g of MIEX magnetic resin (commercially available from Orica, 150-.
Through detection, the content of the sulfamethazine in the treated water body is 0.8mg/L, and the removal rate of the sulfamethazine is 91.8 percent by calculation.
Example 2
In the embodiment, the wastewater containing the sulfamethazine is treated, and the content of the sulfamethazine in the wastewater is 24 mg/L.
The treatment method specifically comprises the following steps:
s1: collecting 250mL of the above wastewater, filtering off insoluble substances, and purifying with H2SO4The pH of the solution was adjusted to 4 with NaOH solution and sodium persulfate (Na) was added2S2O8) Until the concentration is 10mmol/L, and mixing uniformly;
s2: 2g of MIEX magnetic resin (commercially available, from Orica, 150-.
Through detection, the content of the sulfamethazine in the treated water body is 1.5mg/L, and the removal rate of the sulfamethazine is calculated to be 93.8%.
Example 3
In the embodiment, the wastewater containing the sulfamethazine is treated, and the content of the sulfamethazine in the wastewater is 42 mg/L.
The treatment method specifically comprises the following steps:
s1: collecting 250mL of the above wastewater, filtering off insoluble substances, and purifying with H2SO4Adjusting the pH value of the solution and NaOH solution to 3, and adding sodium persulfate (Na)2S2O8) Until the concentration is 12mmol/L, and mixing uniformly.
S2: 2.2g of MIEX magnetic resin (commercially available from Orica, 150-.
Through detection, the content of the sulfamethazine in the treated water body is 1.8mg/L, and the removal rate of the sulfamethazine is calculated to be 95.7%.
Example 4
In the embodiment, the wastewater containing the sulfamethazine is treated, and the content of the sulfamethazine in the wastewater is 61 mg/L.
The treatment method specifically comprises the following steps:
s1: collecting 250mL of the above wastewater, filtering off insoluble substances, and purifying with H2SO4Adjusting the pH value of the solution and NaOH solution to 3, adding sodium persulfate until the concentration is 15mmol/L, and uniformly mixing;
s2: 2.5g of MIEX magnetic resin (commercially available from Orica, 150-.
Through detection, the content of the sulfamethazine in the treated water body is 3.1mg/L, and the removal rate of the sulfamethazine is calculated to be 94.9%.
The method for removing the sulfadimidine in the wastewater adopts the cheap and easily obtained strong oxidant sodium persulfate to carry out the steps ofAfter catalytic activation, sulfate radicals and hydroxyl radicals with strong oxidizability are generated, and compared with other common strong oxidizers such as Cl2、ClO2、ClO-And the oxidation capacity is stronger, and the sulfamethazine can be effectively degraded.
According to the method for removing the sulfadimidine in the wastewater, the MIEX magnetic resin is adopted, on one hand, the effect of catalyzing and activating persulfate is achieved, on the other hand, when the pH value of the wastewater is adjusted to be alkaline by NaOH, the sulfadimidine forms sodium salt, and the resin is strong-alkaline anion resin and can adsorb residual sulfadimidine existing in an anion form.
The method for removing the sulfamethazine in the wastewater has the advantages of less chemical reagent adding amount, economy and high removal rate.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the embodiments described above, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. The method for removing sulfadimidine in wastewater is characterized by comprising the following steps:
s1: filtering the wastewater, removing insoluble substances in the wastewater, adjusting the pH value of the wastewater, adding persulfate into the wastewater, and uniformly mixing;
s2: adding ion exchange resin into the wastewater treated in the step S1, adjusting the pH of the wastewater after reaction, standing, discharging supernatant, and recovering precipitate.
2. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein in step S1, the pH of the wastewater is 3-5.
3. The method for removing sulfadimidine from wastewater as claimed in claim 2, wherein in step S1, the reagent for adjusting pH of wastewater is NaOH or H2SO4。
4. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein the persulfate is sodium persulfate.
5. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein in step S1, the persulfate is added to obtain a persulfate concentration of 8mmol/L to 15 mmol/L.
6. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein in step S2, the addition amount of ion exchange resin is 6 g/L-10 g/L.
7. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein in step S2, the reaction time is 1-2 h.
8. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein in step S2, before standing treatment, the pH of wastewater is adjusted to 8-9.
9. The method of claim 8, wherein the agent used to adjust the pH of the wastewater is NaOH.
10. The method for removing sulfadimidine from wastewater as claimed in claim 1, wherein in step S2, the standing time is 30-40 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133865.5A CN112960796A (en) | 2021-02-01 | 2021-02-01 | Method for removing sulfadimidine in wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133865.5A CN112960796A (en) | 2021-02-01 | 2021-02-01 | Method for removing sulfadimidine in wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112960796A true CN112960796A (en) | 2021-06-15 |
Family
ID=76273553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110133865.5A Pending CN112960796A (en) | 2021-02-01 | 2021-02-01 | Method for removing sulfadimidine in wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112960796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115974258A (en) * | 2023-01-10 | 2023-04-18 | 安徽工业大学 | Method for removing humic acid in water body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060011550A1 (en) * | 2004-05-07 | 2006-01-19 | Bourke Michael F | Inorganic contaminant removal from water |
| CN108609714A (en) * | 2018-03-21 | 2018-10-02 | 四川大学 | A method of removing incretion interferent in water removal using carbon-based magnetic metal composite material catalyzing activation persulfate |
| CN109289851A (en) * | 2018-09-28 | 2019-02-01 | 河南工业大学 | One-step synthesis prepares Fe3O4The method of/mesoporous carbon composite material and its catalyzing oxidizing degrading sulfamethazine |
-
2021
- 2021-02-01 CN CN202110133865.5A patent/CN112960796A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060011550A1 (en) * | 2004-05-07 | 2006-01-19 | Bourke Michael F | Inorganic contaminant removal from water |
| CN108609714A (en) * | 2018-03-21 | 2018-10-02 | 四川大学 | A method of removing incretion interferent in water removal using carbon-based magnetic metal composite material catalyzing activation persulfate |
| CN109289851A (en) * | 2018-09-28 | 2019-02-01 | 河南工业大学 | One-step synthesis prepares Fe3O4The method of/mesoporous carbon composite material and its catalyzing oxidizing degrading sulfamethazine |
Non-Patent Citations (3)
| Title |
|---|
| 陈卫等: ""新型磁性离子交换树脂对原水中痕量有机物的去除效能研究"", 《环境科技》 * |
| 陈卫等: ""新型磁性离子交换树脂对原水中痕量有机物的去除效能研究"", 《环境科技》, vol. 27, no. 1, 28 February 2014 (2014-02-28), pages 2 * |
| 陈家斌著: "《几种PPCPs的毒性作用及降解反应研究》", 31 May 2017, 同济大学出版社, pages: 129 - 130 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115974258A (en) * | 2023-01-10 | 2023-04-18 | 安徽工业大学 | Method for removing humic acid in water body |
| CN115974258B (en) * | 2023-01-10 | 2023-10-17 | 安徽工业大学 | Method for removing humic acid in water body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111790422B (en) | Graphitized nitrogen-complexed Fe (III) -Fe0Catalyst, and synthesis method and application thereof | |
| WO2018035883A1 (en) | Method for treating reverse osmosis concentrated water | |
| CN106698582A (en) | Method for treating industrial wastewater containing heavy metal contaminants by utilizing industrial fly ash and nano iron | |
| CN103787537B (en) | A kind for the treatment of process of sewage and application thereof | |
| CN111943230A (en) | Recycling treatment method for industrial wastewater byproduct salt | |
| CN110357347B (en) | Method for treating wastewater by persulfate advanced oxidation coupling biological sulfate reduction | |
| CN103224308B (en) | Ferrous ion reduction and catalytic oxidation cooperation for reinforcing waste water biological treatment technology | |
| KR101386599B1 (en) | Water treatment agent, manufacturing method thereof, and water treatment system and in-situ treatment system for underground water using that | |
| CN112108132B (en) | Composite nano material for synchronous nitrogen and phosphorus removal, preparation method and application | |
| CN112142231B (en) | Method for removing refractory organic matters in industrial wastewater | |
| CN103193364B (en) | Resource utilization method of ion exchange resin desorption solution | |
| CN102631894B (en) | Walnut shell absorbent material and preparation method thereof | |
| CN110407334B (en) | Preparation and application of synchronous denitrification biological filler for adsorbing nitrate ions | |
| US20150344327A1 (en) | Hybrid water treatment agent of biogenic manganese oxide nanoparticles and activated carbon, preparation method thereof, and water treatment system and on-site underground water treatment system using the same | |
| CN109437386B (en) | Method for removing metal thallium in wastewater | |
| CN112960796A (en) | Method for removing sulfadimidine in wastewater | |
| CN114230059A (en) | Method for removing 2-chlorophenol in water by using thermally activated persulfate | |
| CN106430714B (en) | Method for advanced treatment of pesticide wastewater | |
| CN113415924A (en) | Reverse osmosis concentrated water treatment process for Fenton reagent oxidation enhanced adsorption | |
| CN108558086B (en) | Combined process for removing hexavalent selenium in water | |
| CN113087289B (en) | Treatment method of circuit board development wastewater | |
| CN113354059B (en) | Method for promoting ferric iron/hydrogen peroxide system to degrade environmental pollutants by using amorphous red phosphorus | |
| JPH0698356B2 (en) | Organic wastewater treatment method | |
| CN114044590A (en) | Method for advanced treatment of coal gasification black water | |
| CN112759170A (en) | Method for treating wastewater containing chromium-EDTA |
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: 20210615 |