CN110759541B - System for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate and removing method - Google Patents
System for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate and removing method Download PDFInfo
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- CN110759541B CN110759541B CN201911172918.3A CN201911172918A CN110759541B CN 110759541 B CN110759541 B CN 110759541B CN 201911172918 A CN201911172918 A CN 201911172918A CN 110759541 B CN110759541 B CN 110759541B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- 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
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- 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
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- 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
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/02—Odour removal or prevention of malodour
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Abstract
The invention discloses a system for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate, which comprises a low-temperature plasma oxidation treatment unit, an anion exchange resin adsorption unit and a powdered activated carbon adsorption unit which are sequentially connected. Compared with the prior art, the method organically combines the oxidation of low-temperature plasma, the ion exchange of anion exchange resin and the physical adsorption of powdered activated carbon, can efficiently remove microcystins and odor substances in the high-algae sediment dehydration filtrate, and has excellent environmental compatibility and application prospect.
Description
Technical Field
The invention relates to a system and a method for treating algal toxins and odor substances in high-algae sediment dehydration filtrate, belonging to the technical field of water treatment.
Background
In most areas, surface water sources such as lakes and reservoirs are used as drinking water sources. Due to rapid development of society, a large amount of pollutants are brought by human activities such as industry, agriculture and the like and discharged into water, the water is rich in nutrition, blue algae of surface water sources such as reservoirs, lakes and the like in summer are propagated in a large amount, the outbreak frequency and the outbreak scale of water bloom are greatly increased, and the quality of raw water is seriously influenced. At present, coagulation-precipitation-filtration is still the main process for drinking water treatment. In recent years, more and more attention has been paid to the treatment and disposal of bottom sludge generated in drinking water plants, and the large-scale production of drinking water has led to a large increase in bottom sludge. In the coagulating sedimentation process of a water plant, algae cells can be transferred from a liquid phase to solid phase bottom mud, however, after the algae cells are transferred to the bottom mud by a coagulant, the algae cells are damaged in the production and stacking processes of the bottom mud, a large amount of algae intracellular organic matters (smelly substances, algae toxins, disinfection by-product precursors and the like) are released into the supernatant of the bottom mud, and a water body emits fishy smell, so that serious pollution of algae metabolites is caused.
In the high algae bottom sediment filtrate, odorous substances in the water body are most commonly Geosmin (GSM) and 2-methylisoborneol (2-MIB) which cause earthy and musty odor. In addition, microcystin (MC-LR) released after algal cell rupture can cause liver damage, increasing the possibility of cancer by nearly 10 times. The microcystin has stable structure, so that the microcystin is easy to enrich through the food chain of an ecosystem and causes greater threat to human beings. Therefore, the harmless discharge of the high algae bottom mud dehydration filtrate is a problem which needs to be solved at present.
The chemical oxidation method has the advantages of high efficiency, low cost and simple operation, and has extremely high removal rate of algal toxin and odor substances in the dehydration filtrate of the high algae bottom mud. In recent years, advanced oxidation technologies, such as ultraviolet/persulfate, ultraviolet/hydrogen peroxide, ferrous/persulfate and other combined processes, have been increasingly researched for removing algae and have achieved good results, but the processes have high requirements on experimental conditions, and when applied to water plants, water plant facilities may need to be modified or newly built, and the like. The low-temperature plasma oxidation technology is used as an efficient advanced oxidation technology for removing algae-derived pollutants, the pollutants in the water body are oxidized by the generated various high-energy active particles without adding chemical agents, the environmental compatibility is excellent, and the application prospect is good when the algae toxins and odor substances in the high-algae bottom mud dehydration filtrate are treated. On the other hand, although the low temperature plasma oxidation technology can efficiently destroy the structure of algal toxins and smelly substances, efficiently remove smelly substances, and reduce the ecotoxicity of algal toxins, it cannot completely mineralize the above substances. Therefore, an economical and effective means for removing the algae toxins and odor substances in the dehydration filtrate of the high algae bottom mud is needed.
Disclosure of Invention
The invention aims to: in order to solve the technical problems, the invention aims to provide a system and a method for treating algal toxins and odor substances in high-algae sediment dehydration filtrate.
The technical scheme is as follows: in order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a system for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate comprises a low-temperature plasma oxidation treatment unit, an anion exchange resin adsorption unit and a powdered activated carbon adsorption unit which are sequentially connected.
As a specific embodiment of the present invention:
the low-temperature plasma oxidation treatment unit comprises a molecular sieve oxygen generator, low-temperature plasma generation equipment and a micro-nano aeration head, wherein the molecular sieve oxygen generator can separate pure oxygen and then introduce the pure oxygen into the low-temperature plasma generation equipment, and the low-temperature plasma generation equipment can transmit the generated low-temperature plasma to a water sample through the micro-nano aeration head. The process does not require the addition of chemicals.
The anion exchange resin adsorption unit adopts a full-mixing adsorption mode, the reactor comprises a resin stirring device, a mixing tank, an inclined plate precipitation device and a resin regeneration system, the resin regeneration system comprises a transmission pump, a transmission pipeline, a resin regeneration mixing tank, a small stirring device and a dosing device, and the transmission pipeline is connected with the bottom of the mixing tank and the top of the resin regeneration mixing tank.
When the anion exchange resin adsorption unit is used for adsorption treatment, the resin reflux ratio is 1/10-1/3 of the total amount of the resin, and the resin regenerant is 1-20 wt% of NaCl solution.
The particle size of the anion exchange resin adopted in the anion exchange resin adsorption unit is 150-450 micrometers, preferably 200-300 micrometers; the dosage of the anion exchange resin is 1 to 20 percent of the volume of the reactor.
The anion exchange resin used in the anion exchange resin adsorption unit comprises polystyrene or polyacrylic acid in a resin framework, preferably polyacrylic acid anion exchange resin, and particularly preferably D213 macroporous acrylic acid anion exchange resin.
The anion exchange resin is used for removing high molecular weight soluble organic matters generated in the oxidation process, so that the service life of the activated carbon can be greatly prolonged, and the system maintenance is facilitated.
The powder activated carbon adsorption unit adopts a fixed bed reactor, and the inlet water passes through the powder activated carbon adsorption column from top to bottom; the height-diameter ratio of the powdered activated carbon adsorption column is 1: 1-20: 1, and the adding amount of the powdered activated carbon is 10-50% of the volume of the adsorption column.
The method for removing the algal toxins and the odor substances in the high algae bottom mud dehydration filtrate by using the treatment system comprises the following steps:
(1) Low-temperature plasma oxidation treatment: the low-temperature plasma oxidation treatment unit transmits the generated low-temperature plasma to the high-algae sediment dehydration filtrate water sample for oxidation and degradation;
(2) and (3) adsorption treatment of anion exchange resin: introducing the water sample subjected to low-temperature plasma oxidation treatment into an anion exchange resin adsorption unit, adsorbing and removing high-molecular-weight soluble organic matters, precipitating floating resin particles, performing solid-liquid separation, and allowing separated supernatant to flow into a powdered activated carbon adsorption unit;
(3) adsorption treatment of powdered activated carbon: and (3) discharging the supernatant treated in the step (2) after the adsorption treatment of the powdered activated carbon in a powdered activated carbon adsorption unit.
Has the advantages that: compared with the prior art, the method fully exerts the advantages of convenient operation of low-temperature plasma oxidation and no need of additional medicament, fully exerts the respective advantages of anion exchange resin and active carbon, enables oxidation products with different components and molecular weights to be absorbed and removed, and greatly prolongs the service life of the two adsorbents by series connection. The method can efficiently remove microcystin and odor substances in the high-algae bottom mud dehydration filtrate, and has excellent environmental compatibility and application prospect.
Drawings
FIG. 1 is a schematic diagram of the components of the system for treating algal toxins and odor substances in the dewatering filtrate of the high algae sediment.
FIG. 2 is a schematic view of the composition of the anion exchange resin adsorption unit of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail by the following specific examples.
Examples
In the invention, the calculation formulas of the degradation rate of the smelly substances and the degradation rate of the algal toxins are as follows:
the degradation rate (%) of the odor substance is (0h content of odor substance in the algae-containing bottom mud-content of odor substance at the time point of measurement) × 100%/0 h content of odor substance in the algae-containing bottom mud
The percent degradation rate of the algae toxin (0h algae-containing bottom mud algae toxin content-the content of the algae-containing bottom mud algae toxin at the measured time point) is multiplied by 100 percent/0 h algae-containing bottom mud algae toxin content
A system for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate comprises a low-temperature plasma oxidation treatment unit, an anion exchange resin adsorption unit and a powdered activated carbon adsorption unit which are sequentially connected as shown in figure 1.
The low-temperature plasma oxidation treatment unit comprises a molecular sieve oxygen generator, low-temperature plasma generation equipment and a micro-nano aeration head, wherein the molecular sieve oxygen generator can separate pure oxygen and then introduce the pure oxygen into the low-temperature plasma generation equipment, and the low-temperature plasma generation equipment can transmit the generated low-temperature plasma to a water sample through the micro-nano aeration head.
The gas source used by the low-temperature plasma oxidation treatment unit is pure oxygen, the pure oxygen is separated from air through a molecular sieve oxygen generator and is introduced into low-temperature plasma generating equipment, the generated low-temperature plasma is conveyed to the micro-nano aeration head through a pipeline and is conveyed to a water sample through the micro-nano aeration head, so that the gas-phase plasma and the solution are fully reacted, and no chemical agent is required to be added in the process.
And introducing the low-temperature plasma treated effluent into an anion exchange resin adsorption unit, wherein the used anion exchange resin is D213 macroporous acrylic acid anion exchange resin, and the particle size range is 200-300 microns. The anion exchange resin adsorption unit adopts a full-mixing type adsorption mode, the volume of the reactor is 100L, and the adding amount of the resin is 10 percent of the volume of the reactor. As shown in fig. 2, the reactor includes a resin stirring device 1, a mixing tank 2, an inclined plate precipitation device 3, and a resin regeneration system, and the resin stirring device 1 and the inclined plate precipitation device 3 are disposed inside the mixing tank 2. The resin regeneration system comprises a transmission pump 4, a transmission pipeline 5, a resin regeneration mixing pool 6, a small stirring device 7 and a dosing device 8, wherein the small stirring device 7 is arranged inside the resin regeneration mixing pool 6, the dosing device 8 is arranged at the top of the resin regeneration mixing pool 6, the transmission pipeline 5 is connected with the bottom of the mixing pool 2 and the top of the resin regeneration mixing pool 6, and the transmission pump 4 is arranged on the transmission pipeline 5. The resin reflux ratio is 1/6 of the total resin, and the resin regenerant is 10 wt% of NaCl solution.
The powdered activated carbon adsorption treatment unit adopts a fixed bed reactor, and water enters the powdered activated carbon adsorption treatment unit from top to bottom through the powdered activated carbon adsorption column. The height-diameter ratio of the used powdered activated carbon adsorption column is 10:1, the particle size of the powdered activated carbon is 200-400 meshes, and the adding amount is 20% of the volume of the adsorption column.
A system and a method for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate are carried out according to the following steps:
(1) low-temperature plasma oxidation treatment: the high algae bottom mud dehydration filtrate is subjected to oxidation treatment by high-energy particles generated by low-temperature plasma generating equipment, algae are cracked by strong oxidizing substances, algae source organic matters are quickly oxidized, and odor substances and algal toxins are destroyed and gradually degraded;
(2) and (3) anion exchange resin adsorption treatment: the oxidized dissolved organic matter with larger molecular weight and anions are quickly adsorbed and removed by anion exchange resin, a resin bed adopts a stirring type full-mixing adsorption mode, floating resin particles are precipitated by an inclined plate precipitation device, solid-liquid separation is carried out, and separated supernatant flows into an active carbon adsorption column;
(3) adsorption treatment of powdered activated carbon: and (3) adsorbing the subsequent effluent treated in the step (2) by using a powdered activated carbon adsorption column, and then discharging.
The treatment system and the treatment method can efficiently remove algal toxins and odor substances in the high-algae bottom mud dehydration filtrate. Wherein the removal rate of the algal toxins reaches more than 99 percent, and the removal rate of the odor substances reaches more than 98 percent. In addition, the COD removal rate of the dehydration filtrate is about 40-65%, and the chroma is removed by more than 90%.
Claims (10)
1. A treatment system for algal toxins and odor substances in high algae bottom mud dehydration filtrate is characterized by comprising a low-temperature plasma oxidation treatment unit, an anion exchange resin adsorption unit adopting a full-mixing adsorption mode and a powdered activated carbon adsorption unit which are sequentially connected; the low-temperature plasma oxidation treatment unit comprises a molecular sieve oxygen generator, low-temperature plasma generation equipment and a micro-nano aeration head, wherein the molecular sieve oxygen generator can separate pure oxygen and then introduce the pure oxygen into the low-temperature plasma generation equipment, and the low-temperature plasma generation equipment can transmit the generated low-temperature plasma to a water sample through the micro-nano aeration head.
2. The system for treating algal toxins and odor substances in high algae bottom mud dehydration filtrate according to claim 1, wherein the anion exchange resin adsorption unit adopts a fully mixed adsorption mode, the reactor comprises a resin stirring device, a mixing tank, an inclined plate precipitation device and a resin regeneration system, the resin regeneration system comprises a transfer pump, a transfer pipeline, a resin regeneration mixing tank, a small stirring device and a dosing device, and the transfer pipeline connects the bottom of the mixing tank and the top of the resin regeneration mixing tank.
3. The system for treating algal toxins and odor substances in the high algae bottom mud dehydration filtrate according to claim 1, wherein when the anion exchange resin adsorption unit is used for adsorption treatment, the resin reflux ratio is 1/10-1/3 of the total amount of the resin, and the resin regenerant is 1wt% to 20 wt% of NaCl solution.
4. The system for treating algal toxins and odor substances in the high algae bottom mud dehydration filtrate according to claim 1, wherein the anion exchange resin adopted in the anion exchange resin adsorption unit has a particle size range of 150-450 μm; the dosage of the anion exchange resin is 1-20% of the volume of the reactor.
5. The system for treating algal toxins and odor substances in the dewatering filtrate of the high algae bottom mud as claimed in claim 4, wherein the particle size of the anion exchange resin is 200-300 μm.
6. The system for treating algal toxins and odor substances in dewatered filtrate of high algae bottom mud according to claim 1, wherein the anion exchange resin used in the anion exchange resin adsorption unit has a resin skeleton comprising polystyrene or polyacrylic acid.
7. The system for treating algal toxins and odor substances in dewatering filtrate of high algae bottom mud according to claim 6, wherein the resin skeleton comprises polyacrylic acid based anion exchange resin.
8. The system for treating algal toxins and odor substances in the dewatering filtrate of the high algae bottom mud according to claim 7, wherein the polyacrylic acid anion exchange resin is D213 macroporous acrylic acid anion exchange resin.
9. The system for treating algal toxins and odor substances in the high algae bottom mud dehydration filtrate according to claim 1, wherein the powdered activated carbon adsorption unit adopts a fixed bed reactor, and water enters the powdered activated carbon adsorption column from top to bottom; the height-diameter ratio of the powdered activated carbon adsorption column is 1: 1-20: 1, and the adding amount of the powdered activated carbon is 10-50% of the volume of the adsorption column.
10. A method for removing algal toxins and odorants from a high algae sediment dewatering filtrate using the treatment system of any one of claims 1-9, comprising the steps of: (1) low-temperature plasma oxidation treatment: the low-temperature plasma oxidation treatment unit transmits the generated low-temperature plasma to a high algae bottom mud dehydration filtrate water sample for oxidation and degradation; (2) and (3) anion exchange resin adsorption treatment: introducing the water sample subjected to low-temperature plasma oxidation treatment into an anion exchange resin adsorption unit, adsorbing and removing high-molecular-weight soluble organic matters, precipitating floating resin particles, performing solid-liquid separation, and allowing separated supernatant to flow into a powdered activated carbon adsorption unit; (3) adsorption treatment of powdered activated carbon: and (3) discharging the supernatant treated in the step (2) after the adsorption treatment of the powdered activated carbon in a powdered activated carbon adsorption unit.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561976A (en) * | 1984-05-15 | 1985-12-31 | Stan Houser | Water purification system |
| CN101417844A (en) * | 2008-08-08 | 2009-04-29 | 常州浩瀚新材料科技有限公司 | A kind of mobile comprehensive water quality purifying treater |
| CN203794729U (en) * | 2014-01-24 | 2014-08-27 | 太平洋水处理工程有限公司 | Efficient and compact coupling water treatment device |
| CN104310663A (en) * | 2014-11-14 | 2015-01-28 | 厦门大学 | Combined system for hydroxyl radical (.OH) strong oxidation treatment of high algae-laden water |
| JP2015016393A (en) * | 2013-07-09 | 2015-01-29 | 前澤工業株式会社 | Water treatment apparatus and method |
| CN108002583A (en) * | 2017-11-28 | 2018-05-08 | 魏星 | A kind of big instant water treatment facilities of scale of construction plasma gas-liquid |
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- 2019-11-26 CN CN201911172918.3A patent/CN110759541B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4561976A (en) * | 1984-05-15 | 1985-12-31 | Stan Houser | Water purification system |
| CN101417844A (en) * | 2008-08-08 | 2009-04-29 | 常州浩瀚新材料科技有限公司 | A kind of mobile comprehensive water quality purifying treater |
| JP2015016393A (en) * | 2013-07-09 | 2015-01-29 | 前澤工業株式会社 | Water treatment apparatus and method |
| CN203794729U (en) * | 2014-01-24 | 2014-08-27 | 太平洋水处理工程有限公司 | Efficient and compact coupling water treatment device |
| CN104310663A (en) * | 2014-11-14 | 2015-01-28 | 厦门大学 | Combined system for hydroxyl radical (.OH) strong oxidation treatment of high algae-laden water |
| CN108002583A (en) * | 2017-11-28 | 2018-05-08 | 魏星 | A kind of big instant water treatment facilities of scale of construction plasma gas-liquid |
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