CN101607761B - Purification method of polluted lake water body - Google Patents
Purification method of polluted lake water body Download PDFInfo
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- CN101607761B CN101607761B CN2009100409652A CN200910040965A CN101607761B CN 101607761 B CN101607761 B CN 101607761B CN 2009100409652 A CN2009100409652 A CN 2009100409652A CN 200910040965 A CN200910040965 A CN 200910040965A CN 101607761 B CN101607761 B CN 101607761B
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Abstract
The invention provides a purification method of a polluted lake water body, comprising the following steps: (1) detecting pollution indexes of a lake; (2) blending the varieties and the numbers of microbial agents; (3) throwing the obtained composite microbial agents into a water body according to 100ppm; (4) transferring, translating and degrading pollutants in the lake by the composite microbial agents; (5) detecting the pollution indexes of the lake; and (51) repeating the steps from (2) to (5) until the lake conforms to requirements. Each composite microbial agent comprises the componentsby weight percent: 30 to 50 bacillus subtilis, 30 to 40 nitrifying bacteria, 10 to 20 lactobacillus and 10 to 20 microzyme. The purification method of a polluted lake water body preliminarily reducesand enables the pollutants of the lake water body to be inorganic, achieves the effect of preliminary process of the lake and has simple operation and low cost.
Description
Technical field
The present invention relates to the Ecological Disposal technical field, be specifically related to a kind of purification method of polluted lake water body.
Background technology
The feature of lake pollution water body mainly is an eutrophication, often shows as that blue-green algae is a lot, the muddy slightly stink of water body, also occurs obviously black smelly.Show that according to pertinent data in the large-scale freshwater lake of China, Dian Chi, Taihu Lake, Chaohu, Hongchehu Lake have reached the eutrophy degree, Poyang Lake, Dongting Lake are at present to the eutrophy transitory stage.The lake water quality deterioration mainly is that a large number of nutrients enrichment in water body of extraneous input causes.
Main at present employing cuts means integrated uses such as a dirt, desilting, pure oxygen aeration, artificial swamp.Wherein:
1, cut dirt and be used for controlling the external source pollution, this generally adopts;
2, desilting is used for controlling sediment pollution, but the cost height, forms secondary pollution;
3, 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;
4, the artificial swamp floor space is big, cost is high.
Therefore, need a kind of purification method of polluted lake water body of invention to address the above problem.
Summary of the invention
The purpose of this invention is to provide a kind of purification method of polluted lake water body, the water body in lake pollutent is reduced and inorganicization, reach the effect of the lake being carried out preliminary treatment, have advantage simple to operate, with low cost.
For achieving the above object, adopt following technical scheme:
1, a kind of purification method of polluted lake water body comprises the steps:
(1) contamination index in detection lake,
(2) allotment microbial inoculum,
(3) composite fungus agent that obtains is rendered in the water body by 50-100ppm,
(4) pollutent in composite fungus agent transfer, conversion and the degraded lake,
(5) contamination index in detection lake;
(51) repeating step (2)～(5) meet the requirements up to the lake;
The kind of described composite fungus agent and parts by weight are: subtilis 30～50, nitrobacteria 30～40, milk-acid bacteria 10～20, yeast 10～20.
As the preferred implementation of purification method of polluted lake water body of the present invention, the parts by weight of described composite fungus agent are: subtilis 45～50, nitrobacteria 35～40, milk-acid bacteria 15～20, yeast 18～20.
As the preferred implementation of purification method of polluted lake water body of the present invention, the parts by weight of described composite fungus agent are: subtilis 50, nitrobacteria 40, milk-acid bacteria 18, yeast 20.
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.
A kind of purification method of polluted lake water body of the present invention reduces and inorganicization the water body in lake pollutent, reaches the effect that the lake is handled, and has advantage simple to operate, with low cost.
Description of drawings
The COD change curve table of Fig. 1 method for restoring ecology in water body in lake embodiment 1 of the present invention;
The ammonia nitrogen change curve table of Fig. 2 method for restoring ecology in water body in lake embodiment 1 of the present invention
The total phosphorus change curve of Fig. 3 method for restoring ecology in water body in lake embodiment 1 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 landscape lake
Landscape lake, Total Water are 4300m
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,, adopt purification method of polluted lake water body of the present invention that this lake water is administered through investigation and analysis.Add the composite fungus agent of high density in a large number, the weight part proportioning of described composite fungus agent is: subtilis 45～50, and nitrobacteria 35～40, milk-acid bacteria 15～20, yeast 18～20, the input ratio of composite fungus agent is 100ppm.
Dosage is pressed 100ml/m
3H
2O calculates, and the composite bacteria consumption is 0.1 * 4300=430L.In 15 days governance process, repeat to add composite fungus agent 2 times, each consumption is 215L.Algae is eliminated in a large number, and water-quality guideline improves rapidly.Dynamic monitoring data is seen Fig. 1,2,3.
The situation that landscape lake water body COD 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 15 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.
The situation that Fig. 2 changes for the 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 15 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.
The situation that Fig. 3 changes for the landscape lake water body TP 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 15 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.
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, view lake water majority parameters before improvement all is in the bad V class of surface water level, purification treatment through 15 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: subtilis 30～50, and nitrobacteria 30～40, milk-acid bacteria 10～20, yeast 10～20, the input ratio of composite fungus agent is 50-100ppm.The composite fungus agent that obtains all has improvement greater than 5% to every monitoring index of water body in lake.
In the process of practice, the contriver finds that the weight part proportioning of described composite fungus agent is: subtilis 50, and nitrobacteria 40, milk-acid bacteria 18, during yeast 20, the best results of processing.
The composite fungus agent that the present invention adopts a large amount of input subtilises, nitrifier, yeast, milk-acid bacteria to form, (about 15 days) so in the short period of time make water body become clear rapidly, reduce the water pollution index.This stage mainly concentrates on water body (not containing bed mud), after complex-probiotic group is rendered in the water body, become the beneficial non-hibernating eggs group who has significant advantage in the water body very soon, the organic pollutant in very fast transfer, conversion and the degraded water body makes water body become clear, reduces the water pollution index.
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 (3)
1. a purification method of polluted lake water body comprises the steps:
(1) contamination index in detection lake,
(2) allotment microbial inoculum,
(3) composite fungus agent that obtains is rendered in the water body by 50-100ppm,
(4) pollutent in composite fungus agent transfer, conversion and the degraded lake,
(5) contamination index in detection lake;
(51) repeating step (2)～(5) meet the requirements up to the lake;
The kind of described composite fungus agent and parts by weight are: subtilis 30～50, nitrobacteria 30～40, milk-acid bacteria 10～20, yeast 10～20.
2. purification method of polluted lake water body according to claim 1 is characterized in that, the parts by weight of described composite fungus agent are: subtilis 45～50, nitrobacteria 35～40, milk-acid bacteria 15～20, yeast 18～20.
3. purification method of polluted lake water body according to claim 1 and 2 is characterized in that, the parts by weight of described composite fungus agent are: subtilis 50, nitrobacteria 40, milk-acid bacteria 18, yeast 20.
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| CN105016480B (en) * | 2015-06-30 | 2017-03-22 | 湖北省水利水电规划勘测设计院 | Water body stabilization control method after lake dredging |
| CN106001103A (en) * | 2016-06-29 | 2016-10-12 | 惠州市东江园林工程有限公司 | Ecological restoration method for soil in chemical industrial area |
| CN112794455A (en) * | 2019-11-14 | 2021-05-14 | 东莞市蓝绅环保有限公司 | Sewage treatment agent for removing ammonia nitrogen and total nitrogen and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157892A (en) * | 2007-03-06 | 2008-04-09 | 扬州市绿科生物技术有限公司 | Production method of solid preparation for degradation of ammonia nitrogen and nitrite |
| CN101367581A (en) * | 2008-09-24 | 2009-02-18 | 武汉合缘绿色生物工程有限公司 | Composite microorganism formulation for controlling excessive multiplication of blue-green algae and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157892A (en) * | 2007-03-06 | 2008-04-09 | 扬州市绿科生物技术有限公司 | Production method of solid preparation for degradation of ammonia nitrogen and nitrite |
| CN101367581A (en) * | 2008-09-24 | 2009-02-18 | 武汉合缘绿色生物工程有限公司 | Composite microorganism formulation for controlling excessive multiplication of blue-green algae and preparation method thereof |
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