CN101450819A - Method for inhibiting algae growth - Google Patents
Method for inhibiting algae growth Download PDFInfo
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- CN101450819A CN101450819A CNA2007101987025A CN200710198702A CN101450819A CN 101450819 A CN101450819 A CN 101450819A CN A2007101987025 A CNA2007101987025 A CN A2007101987025A CN 200710198702 A CN200710198702 A CN 200710198702A CN 101450819 A CN101450819 A CN 101450819A
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Abstract
The invention discloses a method for inhibiting the growth of the algae, which at least comprises the step of adding glucosamine into water to be treated. The invention also provides a method for inhibiting the growth of the algae, which at least comprises the step of adding a cyclic compound into the water to be treated, wherein the cyclic compound contains hexose and at least one amido group, and the amido group substitutes a hydroxy group of the hexose at position C1, C3 and/or C4. Therefore, the adoption of the method can utilize a mode of adding the glucosamine in the water to achieve the effect of inhibiting the growth of the algae. In addition, the glucosamine is a compound which can be naturally decomposed and edible, so the glucosamine can not be accumulated in natural environment to cause the harm to human beings or other creatures after the used for a long time.
Description
Technical field
The present invention relates to a kind of method of water treatment, and relate in particular to a kind of method that suppresses algal grown in the water.
Background technology
Many in the world reservoirs all exist the not good problem of water quality, and wherein anxious person to be solved is the excellent oxidation for water quality.The problem of excellent oxidation results from the fertilizer of farmland discharging, the movement of domestic animal, and the improper processing of sewage etc., cause and contain too much nutrient in the water, and then caused the surge of algae in the water source.
Because the oxygen of algae in can consume water, so algae increases sharply and can produce very big impact to environment, or even causes the death of fish or other biology.In addition, the algae surge can produce a large amount of poisonous substances in the lump.For example, partly algae, especially blue-green algae can produce hepatotoxin (hepatotoxin) or neurotoxin (neurotoxin), or even both.These toxin are if can cause serious dermatitis with skin contact, and gastroenteritis then can be caused if be exposed to wherein in the oral cavity.Behind the hepatotoxin of eating low dosage, meeting has the outbreak situation of hepatitis or gastroenteritis to the observation sufferer in the extremely short time.And no matter above-mentioned neurotoxin is single or mixes existence, all can cause biological respiratory paralysis in several minutes, or even dead.In addition, partly add the sterilizing agent in the tap water to, for example chlorine then can react with algae, and then when sterilization, produce by product-haloform (Trihalomethane, THMs).THMs and other disinfection byproduct (DBP) have been proved with cancer and neonatal defective very big relation.
In the method for prior art, copper sulfate is for being widely used in most the algal grown in the control supplied water.Yet, show that according to scientific research its concentration of the copper that copper sulfate dissociateed is understood the cumulative rises along with the rising of food chain level as other heavy metal contamination, and then cause the dead or total minimizing of fish and batrachia.In addition, the human body short period of time contacts also with copper and can cause gastroenteritis, and long-term contact then can cause the damage of liver or kidney.
In view of the above, still wait to develop and a kind ofly can effectively suppress algal grown, and can avoid being detrimental to health or the method for environment.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method that suppresses algal grown, with the problem that water number is drunk in effective improvement, takes into account environment protection and HUMAN HEALTH simultaneously.
According to above-mentioned purpose of the present invention, a kind of method that suppresses algal grown is proposed, this method comprises at least glucosamine is added in the pending water.
According to one embodiment of the invention, the above-mentioned algae that is suppressed growth belongs to Chlorophyta algae, blue-green algae door algae or above-mentioned combination.And an interpolation concentration of glucosamine is at least 10ppm/mg algae.
According to purpose of the present invention, a kind of method that suppresses algal grown is proposed, this method comprises at least a ring compound is added in the pending water.Wherein this ring compound comprises a hexose and at least one amido, and amido then replaces the monohydroxy of hexose in C1, C3 and/or C4 position.
According to above-mentioned, can be used in the mode of adding glucosamine in the water, reach the effect that suppresses algal grown.In addition, but, therefore behind life-time service, can't accumulate in the physical environment, to human or other biological working the mischief because glucosamine is natural decomposition and edible compound.
Embodiment
Embodiment one
Therefore whether can effectively suppress algal grown in order to test glucosamine (glucosamine), in following embodiment, add glucosamine in several samples and observe.In addition, because contained chlorophyll a (chlorophyll-a) the Chang Zuowei fresh water water quality and the index of algae content in the algae, so also utilize the spectrograph chlorophyll a content in the test sample in the lump.If measured chlorophyll-a concentration height is then represented algae content height in the water, water quality is relatively poor, otherwise, if measured chlorophyll-a concentration is low, then represent algae content lower, water quality is preferable.
At first, from the fishpond of containing various algae (especially being rich in the algae of Chlorophyta), get the water of two parts of 20ml, and two duplicate samples are denoted as control group and sample 1 respectively earlier.Then, the glucosamine of 100ppm is added in the sample 1, and control group and sample 1 is carried out 28 days culturing process by a definite date, during employed nutrient solution be Bold ' s medium.After 28 days, observe.
Observations finds that the amount of algae in the control group hurriedly increases, but sample 1 does not have this phenomenon.And confirm more accurately that for the algae concentration in two solution is done therefore respectively two samples are carried out the detection of chlorophyll a content, its process is as follows.
At first, with the solution of control group and sample 1 under 20 ℃ centrifugal 3 hours, outwell supernatant liquor afterwards with 10000rpm.Then, be that 95% ethanol adds respectively in control group and the sample 1 with 10ml percentage by volume concentration, and mix mutually with residuum in two samples.Then, under 60 ℃, respectively two samples are carried out water-bath in 30 minutes, with extracting chlorophyll a.When carrying out water-bath, need shake two sample solution once in per 10 minutes.Afterwards, under 20 ℃ centrifugal 15 minutes again, leave and take the supernatant liquor of two samples respectively with 5000 G.Then, with the optical density of wavelength measurement two samples of 665nm.At last, detection technique NIEA E508.00B-" the chlorophyll a detection method-alcohol extraction method of being announced according to the Environmental Protection Administration environmental test in the water ", proofread and correct two samples in the measured optical density of 665nm, and calculate the concentration of contained chlorophyll a according to measured optical density.
According to above-mentioned method, the chlorophyll-a concentration in measured control group and the sample 1 is respectively 652ppb and 74ppb.Owing to compare with the control group, sample 1 significantly has lower chlorophyll content, and hence one can see that, and glucosamine can suppress algae grows really.In addition, from the above, be rich in the algae of Chlorophyta in this fishpond, so the chlorophyll a in the sample 1 is provided by the Chlorophyta algae mainly.In view of the above, above-mentioned experimental result has confirmed that further glucosamine suppresses effectively to suppress the algae of Chlorophyta.
Embodiment two
Except that the Chlorophyta algae, in order to verify whether glucosamine can effectively suppress blue-green algae door algae, therefore in following embodiment, respectively to two kinds of deleterious blue-green algae kinds, Microcystis aeruginosa (Microcystisaeruginosa) detects with water bloom Microcystis aeruginosa (Microcystis flos-aquae), and detailed step is as follows.
At first, get the aqueous solution that four parts of 50ml contain Microcystis aeruginosa, be denoted as control group and sample 2-4 respectively, wherein the Microcystis aeruginosa concentration in this four duplicate samples all is 883 μ g/L (ppb).Then, the glucosamine with different deals adds in the sample 2 to 4, so that the glucosamine concentration in the sample 2,3,4 is respectively 10ppm, 20ppm, 50ppm.Afterwards, control group and sample 2-4 are carried out 14 days culturing process by a definite date, during employed nutrient solution be Bold ' s medium.And, each sample is carried out the detection of chlorophyll a every 7 days.The detection step of chlorophyll a is as described in the embodiment one, so repeat no more in this.
And after the test that finishes Microcystis aeruginosa, then use the water bloom Microcystis aeruginosa instead and repeat above-mentioned flow process, with the inhibition effect of test glucosamine to the water bloom Microcystis aeruginosa.The test result of two kinds of algae is shown in following table one.
The detecting of table one chlorophyll a content
＜annotate four samples of 1〉Microcystis aeruginosa and the protochlorophyll a concentration of four samples in the time of first day of water bloom Microcystis aeruginosa is respectively 26.5ppb and 26.4ppb.
＜annotate 2〉inhibition efficient=(the chlorophyll a content of sample-system group chlorophyll a content)/control group chlorophyll a content * 100%
As shown in Table 1, glucosamine can suppress the growth of blue-green algae door algae really.With the Microcystis aeruginosa was example, is not adding under the situation of glucosamine, and the chlorophyll a content of control group was respectively 270ppb and 2657ppb at the 7th day and the 14th day.And after adding glucosamine, under identical culture condition, cultivate, the chlorophyll a content among the sample 2-4 descends many significantly.Wherein sample 2 (contained glucosamine concentration is 10ppm) is 80ppb at the content of the 7th day chlorophyll a, and the 14th day content then is 1922ppb.And containing the sample 3 of 20ppm glucosamine, chlorophyll-a concentration obviously is less than sample 2 in the training period.Descend at most as for sample 4 its chlorophyll a content, 41ppb was only arranged at the 7th day, the 14th day then is 72.3ppb.Hence one can see that, although the glucosamine concentration in the sample 2 only has 10ppm, just can show the effect that suppresses algal grown, and along with the raising of contained glucosamine concentration, also promote the inhibition effect of algal grown.
In addition, in table one, also list the inhibition efficient of each sample.As shown in Table 1, when the glucosamine concentration that is added rose to 50ppm by 10ppm, glucosamine can be increased to 97.2% by 27.6% to the inhibition efficient of Microcystis aeruginosa after 14 days.In addition, in this embodiment, proved that also glucosamine can effectively suppress the growth of water bloom Microcystis aeruginosa.As shown in Table 1, along with the rising of glucosamine concentration, suppressing efficient can be increased to 78.9% by 48.6%.
Yet, being used for suppressing the required inhibitor of algal grown, its addition need be shown in algae content number decision in the quality of water quality and the water, but not only depends on the volume of water.Therefore, in this embodiment,, calculate the minimum addition of required glucosamine also according to the weight concentration of water medium blue Chlorophyta algae.
At first, according to above-mentioned, each sample concentration of Microcystis aeruginosa or water bloom Microcystis aeruginosa all is 883 μ g/L among this embodiment, promptly equals 0.883mg/L.Come again, test as can be known, when containing the glucosamine of 10ppm in the water, can provide effective inhibition ability by the sample 2 and 5 of table one.In other words, when containing the algae of 0.883mg in 1 liter the water, add the glucosamine of 10mg, can reach the effect that suppresses algae.Therefore, the minimum addition of glucosamine is about 10ppm/mg algae (being the algae weight (mg algae) of 10ppm glucosamine divided by 0.883mg) at least.
In sum, glucosamine can suppress algae grows really.Along with the rising of glucosamine addition, suppress efficient and also improve thereupon.In addition, because glucosamine can not work the mischief to environment or HUMAN HEALTH behind life-time service for decomposing and the compound of consumption yet.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (5)
1. method that suppresses algal grown, this method comprise at least glucosamine are added in the pending water.
2. method according to claim 1 is characterized in that, this algae that suppresses to grow is Chlorophyta algae, blue-green algae door algae or above-mentioned combination.
3. method according to claim 1 is characterized in that, one of this glucosamine adds concentration and is at least 10ppm/mg algae.
4. method that suppresses algal grown, this method comprises at least:
One ring compound is added in the pending water, and wherein this ring compound comprises:
One hexose; And
At least one amido, this amido replace the monohydroxy of this hexose in C1, C3 and/or C4 position.
5. method according to claim 4 is characterized in that, this hexose is glucose, semi-lactosi or seminose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101987025A CN101450819A (en) | 2007-12-06 | 2007-12-06 | Method for inhibiting algae growth |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101987025A CN101450819A (en) | 2007-12-06 | 2007-12-06 | Method for inhibiting algae growth |
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| CN101450819A true CN101450819A (en) | 2009-06-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689207A (en) * | 2016-12-05 | 2017-05-24 | 浙江海洋大学 | Pollution-free novel algicide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106689207A (en) * | 2016-12-05 | 2017-05-24 | 浙江海洋大学 | Pollution-free novel algicide |
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Open date: 20090610 |