CN101591069A - The treatment process of polluted lake water body - Google Patents
The treatment process of polluted lake water body Download PDFInfo
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- CN101591069A CN101591069A CNA200910039660XA CN200910039660A CN101591069A CN 101591069 A CN101591069 A CN 101591069A CN A200910039660X A CNA200910039660X A CN A200910039660XA CN 200910039660 A CN200910039660 A CN 200910039660A CN 101591069 A CN101591069 A CN 101591069A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The invention provides a kind of treatment process of polluted lake water body, comprise the steps: the contamination index of (1) detection water body in lake, (2) allotment microbial inoculum kind and quantity, (3) composite fungus agent that obtains is rendered in the water body by 10～40ppm, (4) pollutent in composite fungus agent transfer, conversion and the degraded water body in lake, (5) detect the contamination index of water body in lake; Described microbial inoculum comprises photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria and yeast.The treatment process of a kind of polluted lake water body of the present invention reduces the water body in lake pollutent and inorganicization, fundamentally repairs ecologically, has efficient, non-secondary pollution, low, the use characteristic of simple of cost.
Description
Technical field
The present invention relates to the Ecological Disposal technical field, be specifically related to a kind of treatment process of polluted lake water body.
Background technology
The lake water quality deterioration mainly is that a large number of nutrients enrichment in water body of extraneous input causes, and controls the input of exogenous nutrition material conscientiously, is the important prerequisite of water body in lake restoration of the ecosystem.
Mainly repair the ecosystem at present by controlling endogenous and exogenous nutrition material.The nutraceutical control of endogenous mainly is divided into engineering measure, chemical process, biological einforcement method etc.The engineering measure mainly comprises: diversion dilution, bed mud desilting, bed mud covering etc.; Chemical process is mainly and adds aluminium salt etc.; Biological einforcement method comprises: deep water aeration process etc.
A large amount of injections of nutrient salts cause the algae and the abnormal blooming of plankton, and the water body dissolved oxygen descends rapidly, at the interface of water and bed mud even the anaerobism phenomenon occurs.Carry out the artificial aeration at deep water, can effectively improve this situation.After Beijing Shichahai adopts aeration aerating, not only improved the dissolved oxygen of water body, also made the quantity of algae obviously reduce, the wawter bloom degree alleviates greatly.
But also there are various problems in aforesaid method:
1, desilting is used for controlling sediment pollution, but the cost height, forms secondary pollution;
2, pure oxygen aeration is mainly used in reduction sulfide, cuts down COD (chemical oxygen demand (COD)), can appropriateness improve water quality, but the cost height, consumes a large amount of energy;
Therefore, need the treatment process of a kind of polluted lake water body of invention to address the above problem.
Summary of the invention
The treatment process that the purpose of this invention is to provide a kind of polluted lake water body reduces the water body in lake pollutent and inorganicization, fundamentally repairs ecologically, has efficient, non-secondary pollution, low, the use characteristic of simple of cost.
For achieving the above object, adopt following technical scheme:
A kind of treatment process of polluted lake water body comprises the steps:
(1) contamination index of detection water body in lake,
(2) allotment microbial inoculum kind and quantity,
(3) composite fungus agent that obtains is rendered in the water body by 10～40ppm,
(4) pollutent in composite fungus agent transfer, conversion and the degraded water body in lake,
(5) contamination index of detection water body in lake;
Described microbial inoculum comprises photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria and yeast.
As the preferred implementation of the treatment process of polluted lake water body of the present invention, the treatment process of described polluted lake water body also comprises the steps:
(51) repeating step (2)～(5) meet the requirements up to water body in lake.
As the treatment process of polluted lake water body of the present invention, the treatment process of described polluted lake water body comprises the steps: that also (6) are to lake input hydrocoles and/or plantation plant.
As the preferred implementation of the treatment process of polluted lake water body of the present invention, the parts by weight of described composite fungus agent are: photosynthetic bacterium 10～50,
Subtilis 10～50,
Milk-acid bacteria 5～20,
Yeast 5～20.
As the more preferably embodiment of the treatment process of polluted lake water body of the present invention, the parts by weight of described composite fungus agent are: photosynthetic bacterium 10～40,
Subtilis 10～40,
Milk-acid bacteria 5～15,
Yeast 5～15.
As the best preferred implementation of the treatment process of polluted lake water body of the present invention, the parts by weight of described composite fungus agent are: photosynthetic bacterium 30,
Subtilis 30,
Nitrobacteria 20,
Milk-acid bacteria 10,
Yeast 10.
As the preferred implementation of the treatment process of polluted lake water body of the present invention, described composite fungus agent also comprises actinomycetes.
More preferably embodiment as the treatment process of polluted lake water body of the present invention comprises actinomycetes 1～10 weight part in the described composite fungus agent.
Photosynthetic bacterium in the described composite fungus agent belongs to the autotrophy microorganism, it is an energy to accept light and heat, with organism or obnoxious flavour is matrix, several physiological active substances such as nitrogenous compound such as synthesizing amino acid, nucleic acid and carbohydrate, these metabolites, the matrix that becomes other microbial reproduction that has.
Subtilis in the described composite fungus agent is a gram-positive microorganism, and 0.6～0.9 * 1.0～1.5 microns of gemma are oval to column, are positioned at thalline central authorities or inclined to one side slightly, and gemma forms the back thalline and do not expand.The bacterium colony surface irregularity is opaque, dirty white or little yellow, and when growing in the liquid medium within, the normal wrinkle mould that forms.Aerophil.Available protein, multiple sugar and starch decompose tryptophane and form indoles.The subtilyne that produces in the subtilis thalli growth process, polymyxin, nystatin, linear gramicidins isoreactivity material, these active substances have the obvious suppression effect to the conditioned pathogen of pathogenic bacterium or autogenous infection; Subtilis consumes the free oxygen in the environment rapidly, promotes the anerobe growth, and produces organic acid such as lactic acid, reduces environment pH value, suppresses other pathogenic bacterium indirectly and grows.
Nitrobacteria in the described composite fungus agent is a kind of aerobic bacteria, can grow in the water of aerobic or in the layer of sand, and playing the part of very important role in nitrogen cycle purification of water quality process.They comprise a kind of bacillus, coccus or the spirobacteria of form inequality type.Belong to the class of property bacterium on one's own account, comprise two kinds of complete different metabolic groups: nitrous acid Pseudomonas and nitric acid Pseudomonas.Nitrite bacteria (claiming ammonia oxidation bacteria again) becomes nitrous acid with ammonia oxidation.Nitrate bacteria (claiming nitrobacteria again) is oxidized to nitric acid with nitrous acid.This two classes bacterium can obtain the growth energy needed respectively from above oxidising process, and ammonia in the soil or ammonium salt must just can change nitrate under the acting in conjunction of above two bacterioids.Nitrobacteria has vital role in the nature Nitrogen Cycling.
The carbohydrate that milk-acid bacteria in the described composite fungus agent obtains with photosynthetic bacterium, yeast is a matrix, produces lactic acid.Because milk-acid bacteria has very strong sterilizing power, particularly suppress the harmful microbe breeding, and organic rapid corrupt the decomposition; Milk-acid bacteria can make the difficult organism that decomposes such as xylogen, Mierocrystalline cellulose decompose.
Yeast in the described composite fungus agent can both be grown in the environment of aerobic and anaerobic, and promptly yeast is a facultative anaerobe, and under the anoxybiotic situation, yeast becomes alcohol and carbonic acid gas to sugar decomposition.Under the situation of aerobic, it becomes carbonic acid gas and water to sugar decomposition, and when aerobic existed, the yeast growth was very fast.
Can also comprise actinomycetes in the composite fungus agent, it can absorb the amino acid that photosynthetic bacterium produces, produce antibiotics, this antibiont mass-energy effectively suppresses pathogenic bacteria, and the desired material when being harmful to mould and bacterial multiplication of ingesting, thereby suppress its propagation, creation helps other microorganism survival environment; Because actinomycetes and photosynthetic bacterium coexistence, the clean bacterium effect that they are brought into play is multiplied when more independent than actinomycetes.
The treatment process of polluted lake water body of the present invention is emphasized the synergy of flora, and its process is: 1. shift, conversion and degradation of contaminant; 2. the pollutent in the water reduces, and it is clear that water just becomes, for the existence of other biological creates conditions; 3. in conjunction with throwing in hydrocoles, plantation plant etc., recover species diversity; 4. strengthen the self-purification capacity and the material cycle of water body; Finally realizing increasing water quality, index and water body become clearly, change target alive.
Description of drawings
The COD change curve table of the treatment process embodiment 1 of Fig. 1 polluted lake water body of the present invention;
The ammonia nitrogen change curve table of the treatment process embodiment 1 of Fig. 2 polluted lake water body of the present invention
The total phosphorus change curve of the treatment process embodiment 1 of Fig. 3 polluted lake water body of the present invention;
Water quality contrast before and after the improvement of the treatment process embodiment 1 of Fig. 4 polluted lake water body of the present invention.
Embodiment
For making the present invention easier to understand,, further set forth the present invention below in conjunction with specific embodiment.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.
The microbial inoculum that the present invention uses is all available from beneficial source of students biotechnology company and normal peaceful thing Science and Technology Ltd..
Chemical oxygen demand (COD) among the present invention (COD), total nitrogen (TN) and total phosphorus content (TP) are several main detection indexs, the mensuration of ammonia nitrogen adopts the method for GB7479-87, the mensuration of total nitrogen adopts the method for GB11894-89, and the mensuration of total phosphorus adopts the method for GN11893-89.
Embodiment 1: the processing of Dongguan University of Technology's landscape lake
Dongguan University of Technology's landscape lake is positioned at Dongguan University of Technology, and Total Water is 3400m
3, lake water is tawny before administering, and the lake water transparency is low, and has peculiar smell, and part index number is the bad V class standard of surface water.
At the water quality and the water yield characteristics of this lake water, through investigation and analysis, in beginning on May 1st, 2008, the technology that adopts complex micro organism fungicide to administer water body in lake is administered this lake water.Add the composite fungus agent of high density in a large number, the proportioning of described composite fungus agent is: photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria, saccharomycetic weight part ratio are: 20: 30: 25: 15: 10.The input ratio of composite fungus agent is 16ppm.
The contriver finds in the process of administering, in composite fungus agent, add actinomycetes 1～10 weight part, can improve water quality better, because actinomycetes can absorb the amino acid that photosynthetic bacterium produces, produce antibiotics, this antibiont mass-energy effectively suppresses pathogenic bacteria, and the desired material when being harmful to mould and bacterial multiplication of ingesting, thereby suppress its propagation, creation helps other microorganism survival environment; Because actinomycetes and photosynthetic bacterium coexistence, the clean bacterium effect that they are brought into play is multiplied when more independent than actinomycetes.
Dosage is pressed 16ml/m
3H
2O calculates, and the composite bacteria consumption is 16 * 3400=54.4L.Through 16 days improvement, algae was eliminated in a large number, and water-quality guideline improves rapidly.Dynamic monitoring data is seen Fig. 1,2,3.
The situation that the landscape lake water body COD of Dongguan University of Technology changed when Fig. 1 administered for adopting the water body in lake ecological reestablishment that adds composite fungus agent.As seen from Figure 2, continue to descend by adding high-density bacterial classification water body COD, through 16 days improvement, water body COD was reduced to 16.7mg/L rapidly from the 59.5mg/L of beginning, brings up to surface water III class standard (15～20mg/L) from bad V class.In the monitoring of a follow-up wheat harvesting period, monitoring data shows that lake water COD maintains surface water III class (15～20mg/L) level substantially.
The situation that Fig. 2 changes for the Dongguan University of Technology's landscape lake water body ammonia nitrogen after administering through the water body in lake ecological reestablishment that adds complex micro organism fungicide.As seen from the figure, continue to descend by adding high-density bacterial classification water body ammonia nitrogen, through 16 days improvement, the water body ammonia nitrogen was reduced to 0.204mg/L from the 3.275mg/L of beginning, brings up to surface water II class standard (0.15～0.5mg/L) from bad V class.In the monitoring of a follow-up wheat harvesting period, monitoring data shows that the lake water ammonia nitrogen maintains the level of surface water II class substantially.
The situation that Fig. 3 changes for the landscape lake water body TP of Dongguan University of Technology after administering through the water body in lake ecological reestablishment that adds complex micro organism fungicide, as can be seen from the figure, continue to descend by adding high-density bacterial classification water body TP, improvement through 16 days, water body TP is reduced to 0.02mg/L from the 0.31mg/L of beginning, brings up to surface water II class standard (0.02～0.1mg/L) from bad V class.In the monitoring of a follow-up wheat harvesting period, monitoring data shows that lake water maintains the level of surface water II class substantially.
Get the contrast water sample and send Dongguan City environmental monitoring station to carry out check and analysis, the results are shown in Figure 4.
As seen from Figure 4, the water body in lake ecological reestablishment of complex micro organism fungicide is administered very effective for lake water, Dongguan University of Technology's view lake water majority parameters before improvement all is in the bad V class of surface water level, purification treatment through 16 days, main water-quality guideline is brought up to the level of ground Table II class water by the bad V class of part, has thoroughly eliminated the hidden danger of wawter bloom.Water transparency is brought up to 120 centimeters from 15 centimeters.
In other embodiments of the invention, the parts by weight of described composite fungus agent are selected in following scope: photosynthetic bacterium 10～50, subtilis 10～50, nitrobacteria 10～40, milk-acid bacteria 5～20, yeast 5～20, the input ratio of composite fungus agent is 10～40ppm.The composite fungus agent that obtains all has improvement greater than 5% to every monitoring index of water body in lake.
Should be noted that at last; above embodiment is only in order to illustrate technical scheme of the present invention but not limiting the scope of the invention; although the present invention has been done detailed description with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the essence and the scope of technical solution of the present invention.
Claims (8)
1, a kind of treatment process of polluted lake water body comprises the steps:
(1) contamination index of detection water body in lake,
(2) allotment microbial inoculum kind and quantity,
(3) composite fungus agent that obtains is rendered in the water body by 10～40ppm,
(4) pollutent in composite fungus agent transfer, conversion and the degraded water body in lake,
(5) contamination index of detection water body in lake;
Described microbial inoculum comprises photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria and yeast.
2, the treatment process of polluted lake water body according to claim 1 is characterized in that, the treatment process of described polluted lake water body also comprises the steps:
(51) repeating step (2)～(5) meet the requirements up to water body in lake.
3, the treatment process of polluted lake water body according to claim 1 is characterized in that, the treatment process of described polluted lake water body also comprises the steps:
(6) throw in hydrocoles and/or plantation plant to the lake.
4, the treatment process of polluted lake water body according to claim 1 is characterized in that, the parts by weight of described composite fungus agent are:
Photosynthetic bacterium 10～50,
Subtilis 10～50,
Nitrobacteria 10～40,
Milk-acid bacteria 5～20,
Yeast 5～20.
5, the treatment process of polluted lake water body according to claim 4 is characterized in that, the parts by weight of described composite fungus agent are:
Photosynthetic bacterium 10～40,
Subtilis 10～40,
Nitrobacteria 10～30,
Milk-acid bacteria 5～15,
Yeast 5～15.
6, the treatment process of polluted lake water body according to claim 5 is characterized in that, the parts by weight of described composite fungus agent are:
Photosynthetic bacterium 30,
Subtilis 30,
Nitrobacteria 20,
Milk-acid bacteria 10,
Yeast 10.
7, the treatment process of polluted lake water body according to claim 1 is characterized in that, described composite fungus agent also comprises actinomycetes.
8, the treatment process of polluted lake water body according to claim 7 is characterized in that, comprises actinomycetes 1～10 weight part in the described composite fungus agent.
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| CN200910039660XA CN101591069B (en) | 2009-05-21 | 2009-05-21 | Method for treating polluted water body in lake |
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| CN200910039660XA CN101591069B (en) | 2009-05-21 | 2009-05-21 | Method for treating polluted water body in lake |
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| CN102092889A (en) * | 2009-12-15 | 2011-06-15 | 信刚高新技术有限公司 | Method for lake purification and water ecological environmental renovation |
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