CN101591131A - The treatment process of bottom mud in lake - Google Patents
The treatment process of bottom mud in lake Download PDFInfo
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- CN101591131A CN101591131A CNA2009100396614A CN200910039661A CN101591131A CN 101591131 A CN101591131 A CN 101591131A CN A2009100396614 A CNA2009100396614 A CN A2009100396614A CN 200910039661 A CN200910039661 A CN 200910039661A CN 101591131 A CN101591131 A CN 101591131A
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Abstract
The invention provides a kind of treatment process of bottom mud in lake, comprise the steps: the contamination index of (1) detection bottom mud in lake, (2) allotment microbial inoculum kind and quantity, (3) composite fungus agent that obtains is rendered in the water body, (4) pollutent in composite fungus agent transfer, conversion and the degraded bottom mud in lake, (5) detect the contamination index of bottom mud in lake; Described microbial inoculum comprises photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria and yeast.The treatment process of bottom mud in lake of the present invention reduces and inorganicization the bottom mud in lake pollutent, thereby plays the reduction effect to mud, reaches the effect of bottom mud in lake being carried out in-situ treatment.
Description
Technical field
The present invention relates to technical field of sludge treatment, be specifically related to a kind of treatment process of bottom mud in lake.
Background technology
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.In the problem of lake eutrophication, the bottom mud in lake alluvial is an important factor.
At bottom mud in lake, still desilting with the most use, lake dredging up need consume great amount of manpower and material resources and financial resources, and construction period that need be very long, mud is in transportation and also can form secondary pollution when depositing, and desilting can't solve root problem, also can destroy the natural, ecological in original lake, autochthons population in the bed mud is lost with desilting, thereby reduced the self-purification capacity of water body in lake.
Therefore, need the treatment process of a kind of bottom mud in lake 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 bottom mud in lake reduces and inorganicization the bottom mud in lake pollutent, thereby plays the reduction effect to mud, reaches the effect of bottom mud in lake being carried out in-situ treatment.
For achieving the above object, adopt following technical scheme:
A kind of treatment process of bottom mud in lake comprises the steps:
(1) contamination index of detection bottom mud 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 bottom mud in lake,
(5) contamination index of detection bottom mud in lake;
Described microbial inoculum comprises photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria and yeast.
As the preferred implementation of the treatment process of bottom mud in lake of the present invention, the treatment process of described bottom mud in lake also comprises the steps:
(6) repeating step (2)～(5) meet the requirements up to bottom mud in lake.
As the preferred implementation of the treatment process of bottom mud in lake of the present invention, 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.
As the more preferably embodiment of the treatment process of bottom mud in lake of the present invention, 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.
As the best preferred implementation of the treatment process of bottom mud in lake 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 bottom mud in lake of the present invention, described composite fungus agent also comprises bacillus aceticus.
More preferably embodiment as the treatment process of bottom mud in lake of the present invention comprises bacillus aceticus 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 aspergillus tubigensis in the described composite fungus agent, this flora can coexist with other microorganism, the generation that promotes other effective microbe propagation matrix is played an important role, and have the effect of decomposing repugnant substance, can with all corruption things and bacillus eats, carbonization.Can also comprise bacillus aceticus in the composite fungus agent, main fermentation and the decomposition of being responsible for animals and plants remains, remains and most organic substances.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.
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..
The mensuration of total nitrogen adopts the method for GB11894-89 among the present invention, and the mensuration of total phosphorus adopts the method for GN11893-89.
Embodiment 1: productivity promotes the processing of base trestle lakebed mud
Cut down the main performance assessment criteria of bed mud experiment: the variation of the variation of bed mud volume, the main water-quality guideline of bed mud mixed solution (chemical oxygen demand COD, total nitrogen TN and total phosphorus content TP).
Concrete treating processes is as follows:
1, get 2 kilograms of bed muds and be divided into 6 parts, each adds 8 parts water it is made into mixture solution.Wherein two groups add the special complex micro organism fungicides of preparing (calling A, C group in the following text), and another group is group in contrast.Treatment time is 7 days.
2, A, C group adds different microbial inoculum combinations respectively.After 7 days, tangible bed mud deposition all appears in three groups of bed mud mixed solutions, and bed mud contains thing admittedly and is deposited on container bottom, forms tangible solid-liquid line of delimitation.In A, the C group, it is long-pending minimum that the bed mud of A group contains object admittedly, and it is long-pending maximum that the bed mud of control group contains object admittedly, and the reduction rate of bed mud volume reaches about 50%.
3, further investigate A group and control group, the supernatant liquor that can see the A group begins to become clearly and the supernatant liquor of control group is comparatively muddy.In order further to contrast the contamination index of mixed solution, after two groups of mixed solutions were stirred, sampling detected, and obtains a result as following table.This experiment shows,
Add composite fungus agent and can reduce bed mud significantly Contamination index, can cut down the volume of bed mud significantly.
Table 1: main pollution index value
Wherein the proportioning of the composite fungus agent of A group is: photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria, saccharomycetic weight part ratio are: 30: 30: 20: 10: 10.The input ratio of composite fungus agent is 20ppm.
The proportioning of the composite fungus agent of C group 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 10ppm.
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 the volume of bed mud and every index.
In other embodiments of the invention, the parts by weight of described composite fungus agent are selected in following scope: photosynthetic bacterium 10～40, subtilis 10～40, nitrobacteria 10～30, milk-acid bacteria 5～15, yeast 5～15, the input ratio of composite fungus agent is 10～40ppm.The composite fungus agent that obtains all has improvement greater than 7% to the volume of bed mud and every index.
(concrete data are not listed at this one by one because of complicated huge).
Bottom mud in lake treatment process of the present invention shifts, transforms and degrade the pollutent in the bed mud owing to employing adds composite fungus agent, promote diversification and abundantization of bed mud mud layer bottom-dwelling population, pollutants in sediments is reduced and inorganicization, thereby play reduction to bed mud, reach the effect of bottom mud in lake being carried out in-situ treatment, avoid traditional desilting need consume great amount of manpower and material resources and financial resources, and needing very long construction period, bed mud also can form secondary pollution when transporting and depositing.
A lot of organic pollutants are arranged in the bottom mud in lake, under the effect of these organic pollutant bottom-dwelling populations, can produce gases such as biogas, hydrogen sulfide, mud expansion and black smelly can appear, a large amount of solubilized organic matters also can occur progressively is discharged in the water body, these all are the substrate pollutions that bed mud caused, and also are one of main difficult problems of lake treatment.The present invention is exactly the harm at sediment pollution, works out the way that reduces sediment pollution.Specific practice is by adding the mud layer composite fungus agent, increase the bottom-dwelling population of mud layer, form the superior microorganism population of decomposing the bed mud organic matter, organic pollutant in transfer, conversion and the degraded bed mud, promote diversification and abundantization of bed mud mud layer bottom-dwelling population, pollutants in sediments is reduced and inorganicization, can reduce the volume of bed mud in a large number like this, thereby play effect the reduction of bed mud.
Embodiment 2: the processing of Dongguan University of Technology's lakebed mud
Cut down the main performance assessment criteria of bed mud experiment: the variation of the variation of bed mud volume, the main water-quality guideline of bed mud mixed solution (chemical oxygen demand COD, total nitrogen TN and total phosphorus content TP).
Concrete treating processes is as follows: 1, get 1 kilogram of bed mud and be divided into 2 parts, each adds 8 parts water it is made into mixture solution.Wherein the A group adds the complex micro organism fungicide of special preparation, and another group is group in contrast.Treatment time is 7 days.
After 7 days, tangible bed mud deposition all appears in two groups of bed mud mixed solutions, and bed mud contains thing admittedly and is deposited on container bottom, forms tangible solid-liquid line of delimitation.The bed mud of A group contains admittedly that object is long-pending to be compared with control group, and the reduction rate of bed mud volume reaches about 55%.
Further investigate A group and control group, the supernatant liquor that can see the A group begins to become clearly and the supernatant liquor of control group is comparatively muddy.In order further to contrast the contamination index of mixed solution, after two groups of mixed solutions were stirred, sampling detected, and obtains a result as table 2.The result shows, adds the contamination index that composite fungus agent can reduce bed mud significantly, can cut down the volume of bed mud significantly.
The main pollution index value of table 2
Wherein the proportioning of the composite fungus agent of A group is: photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria, saccharomycetic weight part ratio are: 30: 30: 20: 10: 10.The input ratio of composite fungus agent is 20ppm.
Embodiment 3
Cut down the main performance assessment criteria of bed mud experiment: the variation of the variation of bed mud volume, the main water-quality guideline of bed mud mixed solution (chemical oxygen demand COD, total nitrogen TN and total phosphorus content TP).
Concrete treating processes is as follows: 1, get 1 kilogram of bed mud and be divided into 2 parts, each adds 8 parts water it is made into mixture solution.Wherein the A group adds the complex micro organism fungicide of special preparation, and another group is group in contrast.Treatment time is 7 days.
After 7 days, tangible bed mud deposition all appears in two groups of bed mud mixed solutions, and bed mud contains thing admittedly and is deposited on container bottom, forms tangible solid-liquid line of delimitation.The bed mud of A group contains admittedly that object is long-pending to be compared with control group, and the reduction rate of bed mud volume reaches about 60%.
Further investigate A group and control group, the supernatant liquor that can see the A group begins to become clearly and the supernatant liquor of control group is comparatively muddy.In order further to contrast the contamination index of mixed solution, after two groups of mixed solutions were stirred, sampling detected, and obtains a result as table 3.The result shows, adds the contamination index that composite fungus agent can reduce bed mud significantly, can cut down the volume of bed mud significantly.
The main pollution index value of table 3
Wherein the proportioning of the composite fungus agent of A group is: the weight part ratio of photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria, yeast, bacillus aceticus is: 50: 50: 40: 20: 20: 10.The input ratio of composite fungus agent is 40ppm.
In other embodiments of the invention, described composite fungus agent can increase other microbial inoculums on the basis of embodiment 1, and the parts by weight of other microbial inoculums are selected in following scope: bacillus aceticus 0～10, the input ratio of composite fungus agent is 10～40ppm.The composite fungus agent that obtains all has improvement greater than 8% to the volume of bed mud and every index.
(concrete data are not listed at this one by one because of complicated huge).
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 (7)
1, a kind of treatment process of bottom mud in lake comprises the steps:
(1) contamination index of detection bottom mud 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 bottom mud in lake,
(5) contamination index of detection bottom mud in lake;
Described microbial inoculum comprises photosynthetic bacterium, subtilis, nitrobacteria, milk-acid bacteria and yeast.
2, the treatment process of bottom mud in lake according to claim 1 is characterized in that, the treatment process of described bottom mud in lake also comprises the steps:
(6) repeating step (2)～(5) meet the requirements up to bottom mud in lake.
3, the treatment process of bottom mud in lake 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.
4, the treatment process of bottom mud in lake according to claim 3 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.
5, the treatment process of bottom mud in lake according to claim 4 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.
6, the treatment process of bottom mud in lake according to claim 1 is characterized in that, described composite fungus agent also comprises bacillus aceticus.
7, the treatment process of bottom mud in lake according to claim 6 is characterized in that, comprises bacillus aceticus 1～10 weight part in the described composite fungus agent.
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| CN2009100396614A CN101591131B (en) | 2009-05-21 | 2009-05-21 | Method for treating bottom sediment in lake |
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| CN2009100396614A CN101591131B (en) | 2009-05-21 | 2009-05-21 | Method for treating bottom sediment in lake |
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| 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 |
| CN107445432A (en) * | 2017-08-02 | 2017-12-08 | 湖北茂源水生态资源开发有限公司 | A kind of riverbed sludge processing method |
| CN108128995A (en) * | 2018-01-31 | 2018-06-08 | 北京万润华夏环境技术有限公司 | A kind of bed mud improvement and abatement technology in situ |
| CN108529759A (en) * | 2018-04-10 | 2018-09-14 | 北京华景山水生态科技有限公司 | A kind of water pollution sediment in-situ is biological reinforced to be handled and Benthic ecology restorative procedure |
| CN108706846A (en) * | 2018-06-13 | 2018-10-26 | 河北优耕环境科技有限公司 | The method of waters contaminated sediments biology in situ intensive treatment and Benthic ecology reparation |
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| 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 |
| CN107445432A (en) * | 2017-08-02 | 2017-12-08 | 湖北茂源水生态资源开发有限公司 | A kind of riverbed sludge processing method |
| CN108128995A (en) * | 2018-01-31 | 2018-06-08 | 北京万润华夏环境技术有限公司 | A kind of bed mud improvement and abatement technology in situ |
| CN108529759A (en) * | 2018-04-10 | 2018-09-14 | 北京华景山水生态科技有限公司 | A kind of water pollution sediment in-situ is biological reinforced to be handled and Benthic ecology restorative procedure |
| CN108706846A (en) * | 2018-06-13 | 2018-10-26 | 河北优耕环境科技有限公司 | The method of waters contaminated sediments biology in situ intensive treatment and Benthic ecology reparation |
| CN110122404A (en) * | 2019-04-15 | 2019-08-16 | 威海格润环保科技股份有限公司 | A kind of ocean bottom holothurian cultivation oxygen supply purification device and method |
| CN110261502A (en) * | 2019-06-14 | 2019-09-20 | 扬州大学 | Water-Sediment System greenhouse gases distribution experimental provision and its method in irrigation canals and ditches under a kind of simulation sulphur pollution |
| CN110272853A (en) * | 2019-07-25 | 2019-09-24 | 广东五色时空生态环境科技有限公司 | A kind of microbial culture method |
| CN110372156A (en) * | 2019-08-23 | 2019-10-25 | 重庆建工第三建设有限责任公司 | A kind of water ecology selfreparing construction method |
| CN110372156B (en) * | 2019-08-23 | 2022-06-10 | 重庆建工第三建设有限责任公司 | Water body ecological self-repairing construction method |
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