CN101607760A - The purifying method of polluted river - Google Patents

Abstract

The invention provides a kind of purifying method of polluted river, comprise the steps: the contamination index in (1) detection river, (2) river is cut dirt, (3) allotment microbial inoculum kind and quantity, (4) composite fungus agent that obtains is rendered in the water body by 60-120ppm, (5) pollutent in composite fungus agent transfer, conversion and the degraded river, (6) detect the contamination index in river; (61) repeating step (3)～(6) meet the requirements up to the river; The parts by weight of described composite fungus agent are: photosynthetic bacterium 50～80, subtilis 60～70, nitrobacteria 60～70, milk-acid bacteria 25～30, yeast 25～30.The purifying method of polluted river of the present invention reduces and inorganicization the river water pollutent, reaches the effect of the river being carried out preliminary treatment, has advantage simple to operate, with low cost.

Description

The purifying method of polluted river

Technical field

The present invention relates to the Ecological Disposal technical field, be specifically related to a kind of purifying method of polluted river.

Background technology

The contaminated appearance features in river---black smelly, a large number of nutrients enrichment in water body that mainly is extraneous input causes, a large amount of pollutant sediments forms mud, pollutent in the water body has consumed the dissolved oxygen of water body, the biological beginning of a large amount of aerobic water bodys is dead, the anaerobion population is then very active, cause producing foul smell and many ferrous metal sulfide such as hydrogen sulfide, make that original ecosystem is destroyed in the river course, and run down, final river loses self-purification capacity, progressively becomes black smelly.The influence factor of black smelly river improvement is numerous, and difficulty of governance is big, has become a great problem of puzzlement urban ecological environment.

Main at present employing cuts means integrated uses such as a dirt, desilting, pure oxygen aeration, artificial swamp, river water cleaning.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;

5, river water cleaning is river to be dammed enter purifying treatment factory, enters the river course again after reducing its contamination index, needs very big input like this, comprises the many energy that consume in a large amount of found the factory land used and the treating processes.

Therefore, need the purifying method of a kind of polluted river of invention to address the above problem.

Summary of the invention

The purifying method that the purpose of this invention is to provide a kind of polluted river reduces and inorganicization the river water pollutent, reaches the effect of the river being carried out preliminary treatment, has advantage simple to operate, with low cost.

For achieving the above object, adopt following technical scheme:

A kind of purifying method of polluted river comprises the steps:

(1) contamination index in detection river,

(2) river is cut dirt,

(3) allotment microbial inoculum kind and quantity,

(4) composite fungus agent that obtains is rendered in the water body by 60-120ppm,

(5) pollutent in composite fungus agent transfer, conversion and the degraded river,

(6) contamination index in detection river;

(61) repeating step (3)～(6) meet the requirements up to the river;

The parts by weight of described composite fungus agent are: photosynthetic bacterium 50～80, subtilis 60～70, nitrobacteria 60～70, milk-acid bacteria 25～30, yeast 25～30.

As the preferred embodiment of the purifying method of polluted river of the present invention, the parts by weight of described composite fungus agent are: photosynthetic bacterium 60, subtilis 65, nitrobacteria 65, milk-acid bacteria 30, yeast 30.

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.

The purifying method of polluted river of the present invention is thrown in the composite fungus agent that photosynthetic bacterium, subtilis, nitrifier, yeast, milk-acid bacteria etc. are formed in a large number, can about 30 days, realize that the preliminary change of water body is clear, color shoals, stink weakens, the water pollution index reduces like this.This stage mainly concentrates on water body (not containing bed mud), after a large amount of complex-probiotic groups are rendered in the water body, become the beneficial non-hibernating eggs group who has significant advantage in the water body very soon, organic pollutant in very fast transfer, conversion and the degraded water body realizes that the preliminary change of water body is clear, colourity shoals, stink weakens, the water pollution index reduces.

The purifying method of a kind of polluted river of the present invention reduces and inorganicization the river water pollutent, reaches the effect that the river is handled, and has advantage simple to operate, with low cost.

Description of drawings

Every improvement index comparison diagram of the purifying method embodiment 1 of Fig. 1 polluted river 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: drain canal in certain and administer

In drain around the canal industrial enterprise and discharge about 6000 tons of industrial sewages and 9000 tons of sanitary sewages every day, and the pollution level of industrial sewage is very high.Adopt the purifying method of polluted river of the present invention to administer, concrete grammar is as follows:

(1) contamination index in detection river,

(2) river is cut dirt,

(3) allotment microbial inoculum kind and quantity,

(4) composite fungus agent that obtains is rendered in the water body by 60-120ppm,

(5) pollutent in composite fungus agent transfer, conversion and the degraded river,

(6) contamination index in detection river;

(61) repeating step (3)～(6) meet the requirements up to the river;

The parts by weight of described composite fungus agent are: photosynthetic bacterium 50～80, subtilis 60～70, nitrobacteria 60～70, milk-acid bacteria 25～30, yeast 25～30.

The long-width ratio in river is very big, and the geographical environment of flowing through is comparatively complicated, and catchment area is very big, often has a plurality of point-source pollutions, more has pollution of area source widely.The feature of its polluted-water mainly is that the water body blackout is smelly.The management goal in this stage is: realize that the preliminary change of water body is clear, color shoals, stink weakens, the water pollution index reduces.

In the process of practice, the contriver finds that the parts by weight of described composite fungus agent are: photosynthetic bacterium 60, and subtilis 65, nitrobacteria 65, milk-acid bacteria 30, during yeast 30, the best results of processing.

As seen from Figure 1, processing has obtained significant effect, and the principal pollutant index has all descended more than 90%.

Need to prove that in addition the water in river is mobile, water ecological setting changes very frequent, and very big to the impact of biotic population in the water body, its catchment area is very big, so pollution of area source is very big, and the also easier influence that is subjected to point-source pollution.And the lake is for the river, and the water surface is big, storage capacity is big, water body environment is stable, it is very little to flow, and its catchment area is also less, so the pollution of area source in lake is relative with point-source pollution less, water body environment is comparatively stable, also is easier to administer.Therefore, the river is different with the improvement 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 (2)

1, a kind of purifying method of polluted river comprises the steps:

(1) contamination index in detection river,

(2) river is cut dirt,

(3) allotment microbial inoculum kind and quantity,

(4) composite fungus agent that obtains is rendered in the water body by 60-120ppm,

(5) pollutent in composite fungus agent transfer, conversion and the degraded river,

(6) contamination index in detection river;

(61) repeating step (3)～(6) meet the requirements up to the river;

The parts by weight of described composite fungus agent are: photosynthetic bacterium 50～80, subtilis 60～70, nitrobacteria 60～70, milk-acid bacteria 25～30, yeast 25～30.

2, the purifying method of polluted river according to claim 1 is characterized in that, the parts by weight of described composite fungus agent are: photosynthetic bacterium 60, subtilis 65, nitrobacteria 65, milk-acid bacteria 30, yeast 30.

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