CN100579920C - Domestic sewage process method - Google Patents
Domestic sewage process method Download PDFInfo
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- CN100579920C CN100579920C CN200710027448A CN200710027448A CN100579920C CN 100579920 C CN100579920 C CN 100579920C CN 200710027448 A CN200710027448 A CN 200710027448A CN 200710027448 A CN200710027448 A CN 200710027448A CN 100579920 C CN100579920 C CN 100579920C
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- domestic sewage
- processing method
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- rhodopseudomonas
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a domestic sewage treatment method, in particular to a domestic sewage treatment method utilizing microorganisms, which chooses spheroid rhodopseudomonas, rhodopseudomonas palustris and Bacillus subtilis or mutants thereof as metabolism bacteria; and the metabolism bacteria are cultured in a fermenter or a culturing pond and then are put into the sewage by mixing with nutrient additives at the same time, thereby realizing the sewage purification. The bioremediation method provided by the invention can rapidly degrade polluted organic nitrogen, carbohydrates, aromatic ring compounds, domestic pollutants, animal husbandry waste water, hydrocarbons, grease, etc. in the water body.
Description
Technical field
The present invention relates to a kind of domestic sewage processing method, especially a kind of domestic sewage processing method that utilizes microorganism.
Background technology
The purifying treatment of city domestic sewage more and more comes into one's own in large size city, because its discharging must reach standard.And cost in the treating processes and security are the problems that at first will consider.The principal feature of sanitary sewage is to contain a large amount of carbohydrate and ammonia-state nitrogen, and very big to the influence of water quality, ammonia has increased the oxygen requirement of water, and poisonous to aquatic fish, if take in human body, then can weaken the ability of human blood transportation oxygen, so the ammonia-state nitrogen of removing in the water is very crucial.Solid matter in the sanitary sewage (as ight soil) and also must be degraded validly by the agricultural water pollutent of chemical fertilizer and pesticide pollution in addition, safe and effective degradation technique are to need the problem that solves at present.
Chinese patent discloses many parts of sewage water treatment methods, the method that relates to microbiological treatment is wherein also arranged, for example Chinese patent 02114538.5, the improvement problem of the filler of the microbial membrane carrier that relates generally to, the various processes of the domestic water that Chinese patent 00131162.X relates to, what relate generally to also is the improvement of the equipment of sewage disposal; Up to now, the method for microorganism that discloses its concrete use is not arranged.
Summary of the invention
The object of the present invention is to provide a kind of domestic sewage processing method that utilizes microorganism, utilize this method to match with various sewage disposal devices.
What the present invention adopted is the method for biological restoration, and the principle of biological restoration is to utilize the local or mushroom the cultivated nutritional factor of keeping the efficient metabolic capacity of mushroom in conjunction with special interpolation, and provides required oxygen and other must material.The mushroom of these energy metabolism organism and compound generally originally has in the water body of locality, though the kind of these bacterium varies, its nutritional needs is a basically identical.Wherein carbon stems from the pollutent in the water body, and remaining then may need to replenish from others.Obviously, if the nutrition of these bacteriums does not reach requirement, then these bacteriums can not reach effective biomass, thereby influence the degraded of pollutent.Therefore, need a kind of technology or method that make each nutrition component in the water body reach these mushroom requirements, further, need to build a kind of environment that makes these mushroom high efficiently multiplyings, to reach the purpose that clears the pollution off fast.
The present invention adopts following bacterial classification to carry out biological restoration:
The bacterial classification source:
Bacterial classification adopts and comprises Rhodopseudomonas spheroides Rhodopseudomonas spheroides, as ATCC11167; ATCC 14690; NCIB 8253; NCIB 8287 grades or its mutants which had; Rhodopseudomonas palustris Rhodopseudomonas palustris such as ATCC BAA-98, ATCC 11168; NCIB 11692 or its mutants which had; Bacillus subtilus Bacillus subtilis such as ATCC 21332 or its mutant strain.
Adopt above-mentioned metabolism bacterial classification, the proportioning of each bacterial classification is to be unit with weight, in Rhodopseudomonas spheroides: Rhodopseudomonas palustris: the ratio of Bacillus subtilus=1: 1/50～50: 1/50～50, form mixed strains.
Above-mentioned mixed strains must be prepared into the metabolism bacteria preparation earlier.
The preparation of metabolism bacteria preparation:
1) the metabolism bacterium is cultivated: shake a bottle amplification cultivation earlier after getting above-mentioned each bacterial classification recovery, inoculate in fermentor tank or the static cultivation pool and be cultured to required biomass.
Medium component can adopt: soybean protein powder 0.1～2g/L, and yeast extract 0.1～1g/L, dipotassium hydrogen phosphate 0.01～1g/L, sal epsom 0.01～0.1g/L, calcium chloride 0.01～0.1g/L is with 10%NaHCO
3It is 6.0～7.8 that adjustment can be adopted the pH value.Culture condition is pH=6.0～8.2, and temperature is 20～45 ℃.
Culture condition pH value is preferably 6.8～7.5, and temperature is preferably 28～35 ℃.
Also can adopt following substratum and following culture condition: nutrient media components: NH
4Cl 1.0g, yeast extract 0.05～1g/L, KH
2PO
40.2～2g/L, NaCl 0.5～5g/L is with 10%NaHCO
3Adjusting the pH value is 6.5～7.5.
Culture condition: pH=6.0～7.5; Temperature is 28～30 ℃.
Add stablizer and other bacterial classification component and make liquid preparation, or make solid preparation through the normal temperature spraying drying.
Stablizer can adopt the 1% L-Ala aqueous solution.
The usage quantity of bacterial classification in sewage:
Wherein usage quantity is mixed strains liquid 2-20ml/m
3Water body, thalline content are 3.5 * 10
7-2.0 * 10
10/ ml; Or solid 2～20 gram/m
3Water body, thalline content are 3.5 * 10
7～2.0 * 10
10/ gram.
When carrying out sewage disposal, be in preferable decontamination state in order to guarantee mixed strains, for this reason, for it provides necessary nutritional supplements:
The nutritional supplements preparation:
A composition: stearic acid 20-80% (w/w, weight percent), oleic acid 80%-20% (w/w).
B preparation method: stearic acid is heated to thawing (about 100 ℃), adds oleic acid and stir evenly, be ground into powdery after the cooling, cross 20 mesh sieves, promptly.
The C using method: use simultaneously with the mixed strains mixture, usage quantity is 0.01～0.2kg/m in sewage
3
The present invention can adopt ultraviolet ray to carry out the bacterial classification sudden change after the bacterial classification recovery, and passes through to detect diastatic activity after sudden change, picking is through being accredited as the high bacterial strain of enzymic activity degree, through continuous passage, select enzymic activity not have the bacterial classification of the bacterial strain of obviously decline, for using as use.
The mode that the preservation of each bacterial classification can adopt freeze-drying to preserve is cultivated and is added freeze-drying after 1% gelatin and 20% sucrose when bacteria liquid is waited to reach OD600=1, in-80 ℃ of preservations.
The invention provides a kind of biological renovation method, the organic nitrogen that pollutes in the water body of can degrading fast, carbohydrate, aromatic cycle compound, domestic pollutant, livestock industry waste water, hydro carbons, grease etc.The present invention can have under the illumination condition oxygen supply that increases water body, also can be under unglazed photograph or anaerobic condition the pollutent in the tachymetabolism water body.Experiment shows that the present invention has preferable result of use.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Embodiment 1
The preparation of mixed strains: the preparation of Rhodopseudomonas spheroides Rhodopseudomonas spheroids ATCC11167 strain.
Nutrient media components: NH
4Cl 1.0g, yeast extract 0.1g, KH
2PO
40.5g, NaCl 2.0g, water 900ml is with 10%NaHCO
3Adjusting the pH value is 6.5～7.5, adds water to 1000ml again.
Culture condition: pH=6.8; Temperature is 28～30 ℃, and stir speed (S.S.) is 100rpm, and the time is 56 hours.
The preparation of Rhodopseudomonas palustris Rhodopseudomonas palustris ATCC BAA-98 strain.
Nutrient media components: NH
4Cl 1.0g, yeast extract 0.1g, KH
2PO
40.5g, NaCl 2.0g, water 900ml is with 10%NaHCO
3Adjusting the pH value is 6.5～7.5, adds water to 1000ml again.
Culture condition: pH=6.8; Temperature is 28～30 ℃, and stir speed (S.S.) is 100rpm, and the time is 56 hours.
The preparation of Bacillus subtilus Bacillus subtilis ATCC 21332 strains
Nutrient media components: soybean protein powder 1.0g, yeast extract 0.5g, dipotassium hydrogen phosphate 0.05g, sal epsom 0.05g, calcium chloride 0.05g is with 10%NaHCO
3Adjusting the pH value is 7.0～7.8.
Culture condition: pH=7; Temperature is 29～32 ℃, and stir speed (S.S.) is 100rpm, and the time is 72 hours.
With above-mentioned three bacterial classifications by weight, with Rhodopseudomonas spheroides: Rhodopseudomonas palustris: Bacillus subtilus is pressed 1: 1: 5 mixed.Add 1% L-Ala water solvent and make liquid preparation.Thalline content is about 5 * 10
9/ gram.
Embodiment 2
Change the Rhodopseudomonas spheroides of embodiment 1 into Rhodopseudomonas spheroides ATCC14690, Rhodopseudomonas palustris changes Rhodopseudomonas palustris ATCC11168 into.
The ratio of three bacterial classifications changes 25: 25: 2 mixed into.Adopt spraying drying to make solid preparation, all the other are with embodiment 1.
Embodiment 3
With embodiment 1 Rhodopseudomonas spheroides: Rhodopseudomonas palustris: the bacterial classification ratio of Bacillus subtilus changes 50: 1: 50 into, adopts the spray dried formulations solid preparation, and all the other are with embodiment 1.
Embodiment 4
The nutritional supplements preparation
The 60g stearic acid is heated to thawing (about 100 ℃), adds 40g corn oleic acid, be ground into powdery after the cooling, cross 20 mesh sieves, promptly.
Embodiment 5
Ammonia nitrogen class to breeding water is removed test
The breeding water of city suburbs all is mixed with certain domestic water, and there are close property in the refuse composition in its water and city domestic water, and be poisonous to fish, and the water in the fishpond more can compare the content of COD etc. effectively, thus the adaptability of judgement fish.
Select 4 fishponds for use, the water surface in each pond is a 5-10 mu, and wherein a pond is contrast, and its excess-three pond adds embodiment 1 mixed bacteria liquid body preparation, and add-on is a 2L/ mu, and the nutritional supplements ratio is a 2kg/ mu, per 7 days 1 time, adds altogether 3 times.Cycle is 21 days, finishes the back water sampling and detects COD, ammonia-nitrogen content and nitrite content.Result such as table 1:
The removal ammonia nitrogen effect of table 1 mixed bacterium preparation
| Grouping | COD(02.mg/L) | Ammonia nitrogen (ug/ml) | Nitrite (ug/ml) |
| Control group | 24.02 | 1.56 | 0.98 |
| Test group 1 | 11.35 | 0.45 | 0.30 |
| Test group 2 | 10.80 | 0.42 | 0.25 |
| Test group 3 | 12.50 | 0.44 | 0.28 |
Test-results shows: (test group 1,2,3) adds COD, ammonia nitrogen and the nitrite content that mixed bacterium preparation of the present invention can significantly reduce the water body of breeding fish in fishpond.
Tentative experiment shows that embodiments of the invention 2,3 selections have similar result to domestic sewage treating and embodiment 1.
The invention is not restricted to the foregoing description.
Claims (6)
1, a kind of domestic sewage processing method may further comprise the steps:
1) select rhodopseudomonas spheroid, Rhodopseudomonas palustris, Bacillus subtilus or its mutant strain as the metabolism bacterium;
2) shake a bottle amplification cultivation earlier after getting above-mentioned various bacterial classification recovery, inoculate in fermentor tank or the static cultivation pool and be cultured to required biomass;
3) press Rhodopseudomonas spheroides: Rhodopseudomonas palustris: the mixed of Bacillus subtilus=1: 1/50～50: 1/50～50, add stablizer and make liquid preparation, thalline content is 3.5 * 10
7～2.0 * 10
10/ milliliter; Or drying makes solid preparation, and thalline content is 3.5 * 10
7～2.0 * 10
10/ gram;
4) preparation nutritional supplements, composition: stearic acid 20-80% weight percent, oleic acid 80%-20% weight percent; Method: stearic acid is heated to thawing, adds oleic acid, be ground into powdery after the cooling, cross 20 mesh sieves, promptly;
5) nutritional supplements and metabolism bacterium mixture are used simultaneously, the nutritional supplements usage quantity is 0.01～0.2kg/m in the sewage
3
2, domestic sewage processing method according to claim 1, the stablizer that it is characterized in that described preparation liquid preparation are the 1% L-Ala aqueous solution.
3, domestic sewage processing method according to claim 1, the drying means that it is characterized in that described preparation solid preparation is a spraying drying.
4, domestic sewage processing method according to claim 1 is characterized in that metabolism bacterium culture medium composition is: soybean protein powder 0.1～2g/L, yeast extract 0.1～1g/L, dipotassium hydrogen phosphate 0.01～1g/L, sal epsom 0.01～0.1g/L, calcium chloride 0.01～0.1g/L is with 10% NaHCO
3Adjusting pH is 6.0～7.8.
5, domestic sewage processing method according to claim 1 is characterized in that the mode that the preservation when each metabolism bacterial classification does not use adopts freeze-drying to preserve, and cultivates to add freeze-drying after 1% gelatin and 20% sucrose when bacteria liquid is waited to reach OD600=1, in-80 ℃ of preservations.
6, domestic sewage processing method according to claim 1 is characterized in that the sewage disposal employing repeatedly drops into the mode of metabolism bacteria preparation and nutritional supplements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710027448A CN100579920C (en) | 2007-04-06 | 2007-04-06 | Domestic sewage process method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710027448A CN100579920C (en) | 2007-04-06 | 2007-04-06 | Domestic sewage process method |
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|---|---|
| CN101279796A CN101279796A (en) | 2008-10-08 |
| CN100579920C true CN100579920C (en) | 2010-01-13 |
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|---|---|---|---|
| CN200710027448A Expired - Fee Related CN100579920C (en) | 2007-04-06 | 2007-04-06 | Domestic sewage process method |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597579B (en) * | 2009-05-14 | 2011-09-07 | 广东宏隆生物科技有限公司 | Production method of agricultural photosynthetic bacteria preparation |
| CN102168054B (en) * | 2011-02-24 | 2012-12-12 | 南京大学 | Sphingomonas strain and application thereof in water treatment |
| CN105985147A (en) * | 2015-02-10 | 2016-10-05 | 王志龙 | Method for preparing fertilizer through sewage treatment |
| CN105417733B (en) * | 2016-01-12 | 2017-10-10 | 中山市绿浪助剂有限公司 | A kind of ammonia nitrogen waste water handles biological agent |
| CN106517535A (en) * | 2016-09-30 | 2017-03-22 | 洛阳茂生生物技术有限公司 | Method for treating sewage from sewage plant |
| CN106520631A (en) * | 2016-12-14 | 2017-03-22 | 吴银娣 | Complex microbial inoculant and application of composite bactericide to sewage treatment |
| CN109467196A (en) * | 2018-12-27 | 2019-03-15 | 四川大学 | Application of the Rhodopseudomonas palustris in processing oil field waste and the method using Rhodopseudomonas palustris processing oil field waste |
-
2007
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