CN109534475A - Method of controlling algae in a kind of water - Google Patents
Method of controlling algae in a kind of water Download PDFInfo
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- CN109534475A CN109534475A CN201811431784.8A CN201811431784A CN109534475A CN 109534475 A CN109534475 A CN 109534475A CN 201811431784 A CN201811431784 A CN 201811431784A CN 109534475 A CN109534475 A CN 109534475A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 152
- 241000195493 Cryptophyta Species 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 73
- 241000238557 Decapoda Species 0.000 claims abstract description 36
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 13
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims abstract description 6
- DHCDFWKWKRSZHF-UHFFFAOYSA-N sulfurothioic S-acid Chemical compound OS(O)(=O)=S DHCDFWKWKRSZHF-UHFFFAOYSA-N 0.000 claims abstract description 6
- -1 pyrosulfite Chemical compound 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims description 16
- 238000005273 aeration Methods 0.000 claims description 6
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052753 mercury Inorganic materials 0.000 claims description 4
- 238000007654 immersion Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 229910000497 Amalgam Inorganic materials 0.000 claims description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 2
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 claims description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 claims description 2
- 229910001424 calcium ion Inorganic materials 0.000 claims description 2
- 229910052805 deuterium Inorganic materials 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 2
- 229910001414 potassium ion Inorganic materials 0.000 claims description 2
- 229910001415 sodium ion Inorganic materials 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 claims 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 21
- 239000000126 substance Substances 0.000 description 17
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 16
- 230000009467 reduction Effects 0.000 description 9
- 238000009395 breeding Methods 0.000 description 8
- 230000001488 breeding effect Effects 0.000 description 8
- 235000010265 sodium sulphite Nutrition 0.000 description 8
- 238000012851 eutrophication Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000002195 synergetic effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 239000002352 surface water Substances 0.000 description 4
- 241000381271 Caridina Species 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000002255 enzymatic effect Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000003834 intracellular effect Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 231100000167 toxic agent Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 239000003053 toxin Substances 0.000 description 2
- 231100000765 toxin Toxicity 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000192700 Cyanobacteria Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 241000447808 Neocaridina denticulata sinensis Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000011953 bioanalysis Methods 0.000 description 1
- 210000000476 body water Anatomy 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical group [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses method of controlling algae in a kind of water, the following steps are included: (1) reducing agent is added into pending water, the reducing agent is selected from one of sulphite, pyrosulfite, thiosulfate, sulfide, it controls oxygen in water and is lower than 2mg/L, the processing time is 0.5-20 minutes；(2) it will be placed in closed reactor by the water of step (1) processing, control oxygen in water is lower than 0.5 mg/L, carries out ultraviolet light irradiation processing；Or by pending water through black shell shrimp biological treatment, then it is further processed through step (1) and (2).In water of the present invention method of controlling algae can safely, it is economical, efficiently, steadily reach effectively removing and thoroughly controlling for frustule.
Description
Technical field
The present invention relates to environment water-treatment technology fields, more specifically to method of controlling algae in a kind of water.
Background technique
The activity such as human production life is discharged into a large amount of nutrient salts into nature, results in and occurs richness in many water environments
Nutrition pollution.There are eutrophication, there is outburst in when cyanobacteria, wawter bloom for China major part lake and reservoir.Water eutrophication
Harm is serious, directly destruction ecological environment health, influences ecosystem balance, threatens water resource effective use, gives public drink
Water, industrial or agricultural water supply, aquaculture, tourism and water transportation etc. bring about great losses, and constitute to mankind's publilc health tight
It threatens again, is one of the maximum environmental problem that current water environment faces.Therefore, how to effectively improve water eutrophication becomes
A urgent problem needed to be solved.
Existing eutrophic water body administer and algae-removing method mainly for nitrogen and phosphorous nutrient and frustule in water removal side
Face expansion, mainly there is bioanalysis, chemical method etc..These methods have certain removal effect to except algae, but exist obvious insufficient.It is logical
It crosses bed mud and excavates removal nutriment, engineering is huge, and the bed mud dug out is difficult to handle, and it is expensive, it is unsustainable, and usually receive
Less than desired effect.Alga removalby coagulation, pharmaceutical use is big, and the generation of mud amount is more, is not suitable for water environment eutrophy in overall situation
The reparation of change.It breeds fish except algae, environmental-friendly, effect is general, bad especially for the single-cell algae removal effect of low concentration.Gas
It floats except algae effect is preferable, but needs pressurizing vessel tank, be suitble to the centralized processing of drinking water plant or sewage treatment plant, be not suitable for
The reparation of water ring eutrophication, especially when frustule concentration is not high, air flotation effect is bad.The oxidation such as ozone, potassium permanganate
The energy inputs such as agent or ultrasound can make algae rapid inactivation, but frustule it is broken after can release a large amount of intracellular organic matter and
The algae toxin of severe toxicity, seriously affects water quality safety；The intracellular organic matter of frustule also can further react in the subsequent process, generate
The by-product (such as nitrogenous disinfection byproducts) of toxicity, causes secondary pollution, constitutes a threat to water quality safety.As it can be seen that current removes
Algae technology mainly considers the removal for the frustule bred, and lacks sexually revising at all to algae reproduction environment, except algae effect is
Make in short term, effect is also difficult to maintain for a long time, especially when water quality meets alga eruption condition, there is the wind of alga eruption always
Danger, such as collect middle water, artificial lake's water body, the city river water body of the rainwater of storage, reuse.Therefore, it not only effectively to go
It except the class of outburst, inactivates frustule thoroughly, more to improve the condition of water quality of suitable alga eruption, cutting algal grown and outburst
A possibility that.
In conclusion current algae removal technology can not essence a possibility that inhibiting algal grown and outburst, or even there is also
The release of toxic product and the risk generated, the removal of algae and effectively control are still current water treatment field in water environment
A major challenge, therefore need to develop a kind of safe and efficient except algae algae control technology.
Summary of the invention
The technical problem to be solved in the present invention is that for current algae removal technology there are efficiency lower, higher cost, existing
Secondary pollution risk, the deficiency that algal grown and breeding can not be prevented, provide one kind can safely, it is economical, efficiently, steadily
Reach method of controlling algae in the water for effectively removing Yu thoroughly controlling of frustule.
In order to solve the above technical problems, technical solution provided by the invention are as follows:
Method of controlling algae in a kind of water, comprising the following steps:
(1) reducing agent is added into pending water, the reducing agent is selected from sulphite, pyrosulfite, thiosulfate, sulphur
One of compound, control oxygen in water are lower than 2mg/L, and the processing time is 0.5-20 minutes；
(2) it will be placed in closed reactor by the water of step (1) processing, control oxygen in water is lower than 0.5 mg/L, carries out
Ultraviolet light irradiation processing.
The present invention adjusts oxidation-reduction potential and dissolved oxygen levels in control water using reducing agent, inhibits the life of algae
It is long, the enzymatic activity of frustule is destroyed, the toxicant of frustule release is decomposed；Sulphite is recycled to discharge under illumination condition
The special nature of active specy, change water in nitrogen, phosphorus and nutritive salt form, make it be not easy to be re-used by frustule, together
When can also kill frustule, destroy eucaryotic cell structure, inactivation frustule enzymatic activity, decompose potential toxicant；Both pass through
Synergistic effect, thus it is safe and efficient, steadily reach effectively removing and thoroughly controlling for frustule.
Method of controlling algae of the present invention, applicability is wide, can be used for various water bodies water quality except algae and algal control, it is described
Pending water can be rainwater, urban river water, Lake Water, artificial lake water, landscape water, reuse water, breeding water etc..
In step (1) of the present invention, the sulphite, pyrosulfite, thiosulfate or sulfide cation
For one of potassium ion, sodium ion, magnesium ion, calcium ion, ferrous ion or ammonium ion.For cost and safety consideration,
The reducing agent is preferably sulphite, such as sodium sulfite.
Step (1) of the present invention controls the dissolved oxygen levels in water by the dosage of reducing agent, and the reducing agent adds
Amount is generally 10 ~ 200 mg/L.
In step (1) of the present invention, reducing agent handles time (or hydraulic detention time) and depends on water quality situation, and water quality is good,
Residence time can be with shorter；Water quality is bad, then the residence time is long.Those skilled in the art can carry out really according to the actual situation
It is fixed.
In step (2) of the present invention, light source that the ultraviolet light irradiation uses for mercury lamp, amalgam vapour lamp, blackout, halogen lamp,
One of deuterium lamp and sunlight.Radiation mode can be immersion, surface irradiation formula or overflow-type.
In step (2) of the present invention, uv dosage and processing time (or hydraulic detention time) depend on water quality situation and institute
Degree for the treatment of is needed, water quality is good, and uv dosage can be with shorter with the smaller and/or residence time；Water quality is bad, and uv dosage is more greatly
And/or the residence time is long.Those skilled in the art can be combined according to the actual situation, determine.Preferably, step (2)
In, uv dosage is controlled in 0.1 ~ 100 J/cm2Between, hydraulic detention time is 0.5 ~ 120 minute,
In order to more thoroughly remove algae, algal control, method of controlling algae can be combined with other physics, change in water of the present invention
It learns or biological algae removal, algal control mode, those skilled in the art can be combined according to actual needs.Further, institute of the present invention
Method of controlling algae further includes black shell shrimp (Atyoidae, Shi Zhi shrimp section) processing step in the water stated, and the black shell shrimp
Processing step is located at before step (1), and the unicellular alga removed is especially difficult to algae using black shell shrimp has efficiently, specially
The characteristics of one property is preyed on realizes effective biological removal to frustule in water.The concrete operations of the black shell shrimp processing step
Are as follows: black shell shrimp is added into pending water, or makes pending water by the reactor containing black shell shrimp, and the throwing amount of black shell shrimp is
100 ~ 1000/L, be 5 ~ 40 mg/L by aeration control oxygen in water concentration, and control pH value of solution is 6 ~ 9, and processing is certain
(processing time or hydraulic detention time (need to generally be got rid of largely free according to water quality and required degree for the treatment of after time
Microalgae) determine), treated water is carried out to the operation of step (1).In the black shell shrimp processing step, need to generally it lead to
The mode of filter screen or fine fack avoids black shell shrimp from escaping.
Preferably, being protected from light in treatment process (natural with lighting process in the black shell shrimp processing step
Illumination or artificial lighting) both alternate cycle control, effect be guarantee black shell shrimp except algae activity.As further excellent
Choosing, the alternate cycle control meet following condition: controlling daily lighting process total time less than 2 hours, more preferably
0.5 ~ 1.5 hour.
Preferably, water temperature is controlled at 5 ~ 40 DEG C in the black shell shrimp processing step, the processing time (or hydraulic retention
Time) it is 0.1 ~ 96 hour.
Method of controlling algae in water of the present invention, each processing step can be mutually indepedent, can also with series operation,
It can also assemble, be optimized for an integral reactor, realize centralized processing.
Using technical solution provided by the invention, compared with existing well-known technique, there is following remarkable result:
(1) method of controlling algae is given full play to using the synergistic effect of photochemistry and specific reductant in water of the present invention
Active specy selectivity thoroughly changes Water Factors necessary to algal grown, not only realizes effectively removing for algae, also
The inhibition to algal grown is realized, its subsequent breeding is avoided, but do not change main body water quality indicator, the stabilization of water quality can be kept
Property, can be used for various water bodies water quality removes algae and algal control, and process safety, control algae is thorough, applicability is wide.Also, this method is conventional
Consumption of chemical agent is few, and the removal of residual medicament can be realized simply by air oxidation, do not generate toxic by-products, avoid two
Secondary pollution, safety are good；And photochemical treatment is simple and convenient, can automation control, convenient operation and management.
(2) method of controlling algae in water of the present invention makes full use of native country to have vitality strong and sweet-tempered
Black shell shrimp, not the ecological risk of invasive plants and not to water environment generate harm, it is environmental-friendly, it is safe and efficient.
(3) method of controlling algae in water of the present invention first carries out black shell shrimp processing and photochemistry is recycled to go back with specific
The synergistic effect of former agent, the method for having coupled biology with chemistry, gives full play to biological algae removal and the algal control of molecular level chemistry is grown
Synergistic effect, realize control to algae in water, not only realize effectively removing for algae, also substantially reduce control algae
A possibility that subsequent growth and breeding, except algae is high-efficient, control algae reproduction effect is good；Both it can administer and control in water environment
Alga eruption, the algal grown in terms of storage water, Collection utilization rainwater, reuse water, water resource reuse can also be prevented
Breed risk.
Detailed description of the invention
Fig. 1 is the effect contrast figure that several processing processing methods control algae in surface water in the embodiment of the present invention 1
Fig. 2 is that method of controlling algae controls algae in surface water in water biological/chemical combined in the embodiment of the present invention 2,3,4
Effect picture
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
In conjunction with attached drawing, method of controlling algae in a kind of biological/chemical combined water of the present embodiment, the object of processing is landscape lake
In algae.It is process object with certain eutrophication river, wherein algae is removed using method of the invention.Lake Water
Feature: pH 7.3,25 DEG C of water temperature, algae content 2 × 107A/liter.
In the present embodiment, successively with the first processing mode, second of processing mode, the third processing mode in water
Algae is handled.Wherein, the first processing mode is the processing of black shell shrimp, black shell shrimp (Zhejiang rice shrimp,Caridina Zhejiangensis) throwing amount be 100/L, be 8 mg/L by aeration control oxygen in water concentration, keep away in treatment process
Light processing replaces control (being irradiated 1 hour with 10w fluorescent lamp within every 24 hours) with artificial light source, and hydraulic detention time 12 hours；The
Two kinds of processing modes are sodium sulfite reduction treatment, and added amount of chemical 100mg/L, control oxygen in water is lower than 2.0 mg/
L, hydraulic detention time 5 minutes；The third processing mode is to be handled in the reactor of sealing using ultraviolet light irradiation, and light source is
Low pressure mercury lamp, light irradiation mode are surface irradiation formula, and control oxygen in water is lower than 0.5 mg/L, 10 J/ of uv dosage
cm2, hydraulic detention time is 20 minutes.As a result as shown in Figure 1.
Comparative example 1
Referring to embodiment 1, only the algae in water is handled with the first processing mode.As a result as shown in Figure 1.
Comparative example 2
Referring to embodiment 1, only the algae in water is handled with second of processing mode.As a result as shown in Figure 1.
Comparative example 3
Referring to embodiment 1, only the algae in water is handled with the third processing mode.As a result as shown in Figure 1.
As can be seen from Figure 1: the first processing mode and the third processing mode have certain removal rate (about to algae
20%)；Second of processing mode is unobvious to the removal effect of algae；And by the first processing mode, second of processing mode,
The third processing mode, which is combined, to be handled, then can remove 90% or more algae, and the effect for coupling synergistic effect is very aobvious
It writes.In addition, the first processing mode is not easy to completely remove algae, it will lead to the subsequent further growth of algae and breed, second
Kind processing mode has certain inhibiting effect to algal grown, but the time of the effect inhibited is short；The third processing mode
A part of algae can be killed, but after 7 days, there are also apparent growth and breedings for algae；The biology that the present embodiment proposes/chemistry connection
Conjunction can almost remove algae, and the obvious breeding of algae be not observed in 30 days, it is seen that effect of algae restraint also ten
Divide significant.
Embodiment 2
In conjunction with attached drawing, method of controlling algae in a kind of biological/chemical combined water of the present embodiment, the object of processing is surface water
In algae.Method of the invention is applicable in the removal and control of algae in a variety of surface water.It is processing with certain eutrophication river
Object is removed wherein algae using method of the invention.River water quality feature: pH 7.2,26 DEG C of water temperature, algae content 7
×107A/liter
The present embodiment method therefor are as follows: to pending water pass sequentially through the first processing mode, second of processing mode, the third
Processing mode.Wherein, the first processing mode is the processing of black shell shrimp, black shell shrimp (Zhejiang rice shrimp,Caridina Zhejiangensis) throwing amount be 300/L kept away in treatment process by 10 mg/L of aeration control oxygen in water concentration
Light processing replaces control (every 24 hours with 10w fluorescent lamp illumination 1 hour) with lighting process, and hydraulic detention time 24 hours；The
Two kinds of processing modes are sodium sulfite reduction treatment, and 150 mg/L of added amount of chemical controls oxygen in water and is lower than 1.0mg/L,
Hydraulic detention time 10 minutes；The third processing mode is ultraviolet light irradiation processing, and light source is medium pressure mercury lamp, light irradiation mode
For immersion irradiation, control oxygen in water is lower than 0.5 mg/L, uv dosage 20J/cm2, hydraulic detention time is 60 minutes.
The algae control effect of the present embodiment is as shown in Figure 2.Method used by the present embodiment can remove river water body
In 90% or more frustule, and do not observe the release and accumulation of algae toxin；It is exposed through in air, in treated water
No sodium sulfite accumulation, no obvious secondary pollution generate, and efficiency is higher, and safety is preferable.
Embodiment 3
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, substantially with embodiment 2, the difference is that:
The process object of the present embodiment is Lake Water；Lake water quality be pH 7.4,22 DEG C of water temperature, algae content 1 × 108A/liter；The first
Processing mode is the processing of black shell shrimp, black shell shrimp (Chinese sawtooth rice shrimp,Neocaridina denticulate sinensis)
Throwing amount is 500/L, by 12 mg/L of aeration control oxygen in water concentration, hydraulic detention time 36 hours；Second of processing
Mode be sodium sulfite reduction treatment, 160 mg/L of added amount of chemical, hydraulic detention time 15 minutes；The third processing mode is
Ultraviolet light irradiation processing, 50 J/cm of uv dosage2, hydraulic detention time is 60 minutes.
The algae control effect of the present embodiment is as shown in Figure 2.Method used by the present embodiment can remove water body in lake
In 90% or more frustule, efficiency is higher.
Embodiment 4
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, substantially with embodiment 2, the difference is that:
The process object of the present embodiment is small micro- water body --- pond；Pond water quality be pH 6.8,23 DEG C of water temperature, algae content 5 × 108
A/liter；The first processing mode is the processing of black shell shrimp, black shell shrimp (curved volume rice shrimp,Caridina curvifrons) throwing amount be
1000/L, by aeration control oxygen in water concentration 20mg/L, hydraulic detention time 96 hours；Second of processing mode be
Sodium sulfite reduction treatment, added amount of chemical 300mg/L, hydraulic detention time 20 minutes；The third processing mode is ultraviolet light
Radiation treatment, 100 J/cm of uv dosage2, hydraulic detention time is 120 minutes.
The algae control effect of the present embodiment is as shown in Figure 2.Method used by the present embodiment can remove pond waters
In 80% or more frustule, efficiency is higher.
Embodiment 5
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, the inhibition for algal grown in rainwater.Rain
Water water quality characteristics: pH 6,20 DEG C of water temperature, CODMn2.5 mg/L.
The present embodiment method therefor are as follows: second of processing mode, the third processing mode are passed sequentially through to pending water.Wherein,
Second of processing mode is sodium sulfite reduction treatment, and added amount of chemical 200mg/L controls oxygen in water and is lower than 1.0mg/L,
Hydraulic detention time 5 minutes；The third processing mode is ultraviolet light irradiation processing, and light source is LED ultraviolet lamp, light irradiation mode
For surface irradiation, controls oxygen in water and be lower than 0.5 mg/L, 1.0 J/cm of uv dosage2, hydraulic detention time is 20 minutes.
As a comparison, rainwater is without any processing, and after the storage of 30 day time, amount of algae is higher than 1 × 10 in rainwater6
A/liter, and method used by the present embodiment can effectively control the growth of algae in the rainwater of collection, after 30 days, not have
It observes after processing the growth of algae and breeding (< 100/liter) in rainwater, does not generate secondary pollution, water quality parameter base in the process
This stabilization is conducive to the long-term collection of rainwater and utilizes.This method is suitable for storing with water, reuse water, sewerage ecological simultaneously
Algae control and water quality safety guarantee in processing, it is safe and efficient, conveniently, controllably.
Embodiment 6
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, substantially with embodiment 2, the difference is that:
With the inhibition of algal grown in Mr. Yu's landscape lake, lake water water quality is pH 7.2,24 DEG C of water temperature, CODMn5.5 mg/L；At second
Reason mode be sodium sulfite reduction treatment, 80 mg/L of added amount of chemical, hydraulic detention time 5 minutes；The third processing mode is
Ultraviolet light irradiation processing, 8 J/cm of uv dosage2, hydraulic detention time is 25 minutes.
As a comparison, Water in landscape lake is without any processing, and amount of algae is higher than 1 × 10 in lake water after 45 days7A/liter, and
Method used by the present embodiment can effectively control the growth of algae in landscape lake, after 45 days, after processing is not observed
The growth Yu breeding (< 10 of algae in lake water4A/liter), secondary pollution is not generated in the process, and water quality parameter is basicly stable, the party
Method can be used for controlling the algae reproduction of natural water body, artificial water, convenient, safe, controllable.
Embodiment 7
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, substantially with embodiment 1, the difference is that:
Second of processing mode is sodium pyrosulfite reduction treatment.Method used by the present embodiment can remove 92% in river water body
Above frustule.
Embodiment 8
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, substantially with embodiment 1, the difference is that:
Second of processing mode is Reduction by Thiosulfate processing.Method used by the present embodiment can remove 95% or more in lake water
Frustule.
Embodiment 9
Method of controlling algae in a kind of biological/chemical combined water of the present embodiment, substantially with embodiment 1, the difference is that:
Second of processing mode is vulcanized sodium reduction treatment.Method used by the present embodiment can remove in lake water 84% or more algae
Cell.
Claims (10)
1. method of controlling algae in a kind of water, comprising the following steps:
Reducing agent is added into pending water, the reducing agent is selected from sulphite, pyrosulfite, thiosulfate, vulcanization
One of object, control oxygen in water are lower than 2mg/L, and the processing time is 0.5-20 minutes；
It will be placed in closed reactor by the water of step (1) processing, control oxygen in water is lower than 0.5 mg/L, carries out ultraviolet
Light irradiation processing.
2. method of controlling algae in water as described in claim 1, it is characterised in that: method of controlling algae also wraps in the water
Black shell shrimp processing step is included, the black shell shrimp processing step is located at before step (1).
3. method of controlling algae in water as claimed in claim 2, it is characterised in that: the black shell shrimp processing step it is specific
Operation are as follows: add black shell shrimp into pending water, or pending water is made to pass through the reactor containing black shell shrimp, the throwing amount of black shell shrimp
It is 5 ~ 40 mg/L by aeration control oxygen in water concentration for 100 ~ 1000/L, control pH value of solution is 6 ~ 9, processing one
After fixing time, treated water is carried out to the operation of step (1).
4. method of controlling algae in water as claimed in claim 3, it is characterised in that: in the black shell shrimp treatment process, into
Row is protected from light the alternate cycle control of both processing and lighting process.
5. method of controlling algae in water as claimed in claim 4, it is characterised in that: the alternate cycle control specifically:
Control daily total lighting process time was less than 2 hours.
6. method of controlling algae in water as claimed in claim 3, it is characterised in that: in the black shell shrimp processing step, water
For temperature control system at 5 ~ 40 DEG C, the processing time is 0.1 ~ 96 hour.
7. method of controlling algae in the water as described in one of claim 1 ~ 6, it is characterised in that: in step (1), the sulfurous
Hydrochlorate, pyrosulfite, thiosulfate or sulfide cation be potassium ion, sodium ion, magnesium ion, calcium ion, ferrous iron
One of ion or ammonium ion.
8. method of controlling algae in the water as described in one of claim 1 ~ 6, it is characterised in that: the dosage of the reducing agent is
10~200 mg/L。
9. method of controlling algae in the water as described in one of claim 1 ~ 6, it is characterised in that: in step (2), described is ultraviolet
For one of mercury lamp, amalgam vapour lamp, blackout, halogen lamp, deuterium lamp and sunlight, radiation mode can be the light source that light irradiation uses
Immersion, surface irradiation formula or overflow-type.
10. method of controlling algae in water as claimed in claim 9, it is characterised in that: in step (2), uv dosage control exists
0.1~100 J/cm2Between, hydraulic detention time is 0.5 ~ 120 minute.
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