CN107935189A - A kind of technique using algae microballoon processing sanitary sewage - Google Patents
A kind of technique using algae microballoon processing sanitary sewage Download PDFInfo
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- CN107935189A CN107935189A CN201711334764.4A CN201711334764A CN107935189A CN 107935189 A CN107935189 A CN 107935189A CN 201711334764 A CN201711334764 A CN 201711334764A CN 107935189 A CN107935189 A CN 107935189A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
Abstract
The invention belongs to environmental technology field, discloses a kind of technique using algae microballoon processing sanitary sewage, it includes the following steps：Sanitary sewage passes sequentially through grid and slurry separator, remove solid matter, it is aerated subsequently into aeration tank, it is aerated the laggard sedimentation basins of 36 48h, sedimentation time is 12 24h, and supernatant liquid enters acid-base accommodation pond, and the pH for adjusting liquid is 7 7.5, biological reaction pool is entered back into, by algae microballoon according to 100 200g：The ratio of 1 ton of liquid is inoculated in liquid, and processing time is 68 days, finally carries out algae water separation, discharges liquid.Present invention process is easy to operate, it can be achieved that the purpose of environment-friendly and green reparation, economical and efficient is environmental-friendly, of low cost, has wide range of applications.
Description
Technical field
The invention belongs to environmental technology field, and in particular to a kind of technique using algae microballoon processing sanitary sewage.
Background technology
Sanitary sewage contains substantial amounts of organic matter etc., it is total the characteristics of be nitrogenous, sulfur-bearing and phosphorous height, have to water resource larger
Harm, and pollute environment.Handling this method containing nitrogen sulphur phosphorus sewage at present has many kinds, mainly there is physical treatment
Method, method of chemical treatment and biological treatment.Physical treatment process is simplest water treating method, it is acted on by physical separation and recycled
Undissolved suspended contaminant in sewage, physical treatment process can only handle some simple sewage disposals, but handle very endless
Entirely, it is difficult to reach discharge standard；Method of chemical treatment causes medicine to consume, and very big, sludge quantity is very big；Biological treatment is by biological generation
Thanking dissolves the pollutant in sewage.
In recent years, as the development of biotechnology, biological treatment are repaired sewage and be increasingly valued by people.Biology
Facture possesses nontoxic, and non-corrosiveness, environment friendly is strong, easy to use, need not add equipment or engineering substantially, saves money
Gold input, is accept by enterprises for extensively.At present, mostly the comparison of research it is processing of the microbial inoculum to sewage, also there are some to algae
The research of class treated sewage, for example, Chinese patent technology 201710430009, discloses a kind of work for purifying domestic sewage
Property phycomycete community, it come treated sewage, achieves certain effect by the synergy of algae and mushroom.Sent out based on environmental protection
The requirement of exhibition carrys out treated sewage, it is necessary to develop different types of biological agent.Applicant is right according to algal culture experience for many years
Algae preparation is studied.
Containing nitrogen, phosphorus and other nutriments needed for a large amount of algal growns in sanitary sewage, by sewage disposal and algae
Pilot scale culture combine, sewage is reached inexpensive discharge, but also the cost of microdisk electrode can be saved, at the same time
Also contain many high added value products in microalgae biomass.The current report for having had some on algae treated sewage, " Wei
Cheng Gen, suspended alga handle the experimental study of micro-polluted water, 2008 " to have studied suspended alga artificial to Urban River Water, city
Pollutant removal character in water body in lake and secondary municipal wastewater treatment plant water outlet；" silver-colored beautiful face etc., immobilized algae denitrogenation remove
Phosphorus effect disquisition, 2009 " it have studied removal effect of the algal immobilization to nitrogen phosphorus in manually preparation sewage.Handled using microalgae
Sewage has good development prospect and advantage.But the factor such as the ammonia nitrogen of sewage middle and high concentration and relatively low transparency is unfavorable for
The growth of microalgae, is often difficult to reach ideal effect using single microalgae treated sewage；It would therefore be desirable to develop efficient algae
Class preparation is used for handling sanitary sewage.
The content of the invention
The object of the present invention is to provide a kind of technique using algae microballoon processing sanitary sewage, the technique simple possible, environment friend
Good property is strong, high treating effect, of low cost, and application prospect is good.
The present invention is achieved by the following technical solution：
A kind of technique using algae microballoon processing sanitary sewage, it includes the following steps：
Sanitary sewage passes sequentially through grid and slurry separator, removes solid matter, is aerated subsequently into aeration tank, is aerated 36-
The laggard sedimentation basins of 48h, sedimentation time 12-24h, supernatant liquid enter acid-base accommodation pond, and the pH for adjusting liquid is 7-7.5, then
Into biological reaction pool, algae microballoon is according to 100-200g：The ratio of 1 ton of liquid is inoculated in liquid, and processing time is 6-8 days,
Algae water separation is finally carried out, discharges liquid.
Specifically,
The algae microballoon is prepared according to following technique：
By small Closterium concentrate, scenedesmus obliquus concentrate and crescent algae fibre concentrate according to 2-3:1-2:The volume of 1-2
Than being mixed to get mixing algae solution, then add account for mixing algae solution half volume concentration be 4wt% sodium alginate it is water-soluble
Liquid, the urea for accounting for mixing 2% parts by weight of algae solution and the sodium acid carbonate for accounting for mixing 4% parts by weight of algae solution, stir evenly, then be added dropwise and account for
The concentration for mixing 2 times of volumes of algae solution is the calcium chloride water of 2wt%, is shaken when being added dropwise, and after being added dropwise, stands 9h, is made
The algae microballoon of a diameter of 3mm.
Preferably,
The preparation method of the small Closterium concentrate includes the following steps：Take the logarithm the small Closterium in growth period, 7000rpm from
Heart 15min, removes supernatant, then adds sterile water, the density for adjusting frustule is 3-4 × 107Cell/mL, obtains small new
Month algae concentrate.
Preferably,
The preparation method of the scenedesmus obliquus includes the following steps：Take the logarithm the scenedesmus obliquus in growth period, 5000rpm centrifugations
15min, removes supernatant, then adds sterile water, the density for adjusting frustule is 2-3 × 107Cell/mL, obtains tiltedly giving birth to grid
Algae concentrate.
Preferably,
The preparation method of the crescent algae fibre includes the following steps：Take the logarithm the crescent algae fibre in growth period, 5000rpm centrifugations
10min, removes supernatant, then adds sterile water, the density for adjusting frustule is 0.5-1 × 107Cell/mL, obtains crescent
Algae fibre concentrate.
Preferably,
The parameter of the biological reaction pool is：Temperature is 25-28 DEG C, Light To Dark Ratio 12：12, intensity of illumination 5000-
10000LX。
Algae of the present invention can be obtained by conventional cultural method needed for concentration algae solution, this and non-invention
Innovative point, as space is limited, do not repeat one by one.
The beneficial effect that the present invention obtains mainly includes but is not limited to several aspects：
The technological operation of present invention processing sanitary sewage is easy, it can be achieved that the purpose of environment-friendly and green reparation, economical and efficient, environment friend
It is good, it is of low cost, have wide range of applications；
During the present invention prepares algae microballoon, three kinds of algae are used, compatibility is reasonable, possesses preferable synergistic effect so that dirty
The removal ability of COD, NH3-N, SS and TP are effectively lifted in water；
After fixation, growth and physiological property change algae of the present invention, improve the absorption to materials such as nitrogen, sulphur and phosphorus
And bioaccumulation efficiency；
Algae microballoon of the present invention is used in combination using a variety of pore-foaming agents, and the pore mechanism of different pore-foaming agents is different, compared to single
The effect of pore-foaming agent, obtained pore structure size reasonable, is evenly distributed, and can ensure the quantity of pore structure；
Frustule is positioned at the area of space of restriction using immobilization technology by the present invention, makes the algae of immobilization can keep itself
Metabolic activity, and can recycle and recycle after successive reaction.
Figure of description
Fig. 1：Influence of the processing time to wastewater treatment efficiency.
Embodiment
Those skilled in the art can use for reference present disclosure, be suitably modified technological parameter realization.In particular,
All similar substitutions and modifications are apparent to those skilled in the art, they are considered as being included in this hair
It is bright.The product and method of the present invention is described by preferred embodiment, and related personnel can substantially not depart from this hair
Product as described herein and method are modified or suitably changed with combining in bright content, spirit and scope, to realize and answer
Use the technology of the present invention.For a further understanding of the present invention, with reference to embodiment, the present invention is described in detail.
Embodiment 1
A kind of technique using algae microballoon processing sanitary sewage, it includes the following steps：
Sanitary sewage passes sequentially through grid and slurry separator, removes solid matter, is aerated subsequently into aeration tank, after aeration 36
Into sedimentation basin, sedimentation time 24h, supernatant liquid enters acid-base accommodation pond, and the pH for adjusting liquid is 7, enters back into biological respinse
Pond, algae microballoon is according to 100g：The ratio of 1 ton of liquid is inoculated in liquid, controlled at 25 DEG C, Light To Dark Ratio 12：12, illumination
Intensity is 5000LX, and processing time is 8 days, finally carries out algae water separation, discharges liquid.
The algae microballoon is prepared according to following technique：
1）Take the logarithm the small Closterium in growth period, 7000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust
The density of frustule is 4 × 107Cell/mL, obtains small Closterium concentrate；
2）Take the logarithm the scenedesmus obliquus in growth period, 5000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust
The density of frustule is 3 × 107Cell/mL, obtains scenedesmus obliquus concentrate；
3）Take the logarithm the crescent algae fibre in growth period, 5000rpm centrifugation 10min, remove supernatant, then add sterile water, adjust
The density for saving frustule is 1 × 107Cell/mL, obtains crescent algae fibre concentrate；
4）By small Closterium concentrate, scenedesmus obliquus concentrate and crescent algae fibre concentrate according to 3:2:2 volume ratio is mixed
Conjunction obtain mixing algae solution, then add account for mixing algae solution half volume concentration be 4wt% sodium alginate aqueous solution, account for
Mix the urea of 2% parts by weight of algae solution and account for the sodium acid carbonate of mixing 4% parts by weight of algae solution, stir evenly, then be added dropwise and account for mixing
The concentration of 2 times of volumes of algae solution is the calcium chloride water of 2wt%, is shaken when being added dropwise, and after being added dropwise, stands 8h, diameter is made
For the algae microballoon of 3mm.
Embodiment 2
A kind of technique using algae microballoon processing sanitary sewage, it includes the following steps：
Sanitary sewage passes sequentially through grid and slurry separator, removes solid matter, is aerated subsequently into aeration tank, is aerated 48h
Laggard sedimentation basin, sedimentation time 12h, supernatant liquid enter acid-base accommodation pond, and the pH for adjusting liquid is 7.5, enters back into biology
Reaction tank, algae microballoon is according to 200g：The ratio of 1 ton of liquid is inoculated in liquid, controlled at 28 DEG C, Light To Dark Ratio 12：12,
Intensity of illumination is 10000LX, and processing time is 6 days, finally carries out algae water separation, discharges liquid.
The algae microballoon is prepared according to following technique：
1）Take the logarithm the small Closterium in growth period, 7000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust
The density of frustule is 3 × 107Cell/mL, obtains small Closterium concentrate；
2）Take the logarithm the scenedesmus obliquus in growth period, 5000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust
The density of frustule is 2 × 107Cell/mL, obtains scenedesmus obliquus concentrate；
3）Take the logarithm the crescent algae fibre in growth period, 5000rpm centrifugation 10min, remove supernatant, then add sterile water, adjust
The density for saving frustule is 0.5 × 107Cell/mL, obtains crescent algae fibre concentrate；
4）By small Closterium concentrate, scenedesmus obliquus concentrate and crescent algae fibre concentrate according to 2:1:1 volume ratio is mixed
Conjunction obtain mixing algae solution, then add account for mixing algae solution half volume concentration be 4wt% sodium alginate aqueous solution, account for
Mix the urea of 2% parts by weight of algae solution and account for the sodium acid carbonate of mixing 4% parts by weight of algae solution, stir evenly, then be added dropwise and account for mixing
The concentration of 2 times of volumes of algae solution is the calcium chloride water of 2wt%, is shaken when being added dropwise, and after being added dropwise, stands 9h, diameter is made
For the algae microballoon of 3mm.
Embodiment 3
A kind of technique using algae microballoon processing sanitary sewage, it includes the following steps：
Sanitary sewage passes sequentially through grid and slurry separator, removes solid matter, is aerated subsequently into aeration tank, is aerated 40h
Laggard sedimentation basin, sedimentation time 16h, supernatant liquid enter acid-base accommodation pond, and the pH for adjusting liquid is 7-7.5, enters back into life
Thing reaction tank, algae microballoon is according to 150g：The ratio of 1 ton of liquid is inoculated in liquid, controlled at 26 DEG C, Light To Dark Ratio 12：
12, intensity of illumination 6000LX, processing time are 7 days, finally carry out algae water separation, discharge liquid.
The algae microballoon is prepared according to following technique：
1）Take the logarithm the small Closterium in growth period, 7000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust
The density of frustule is 3 × 107Cell/mL, obtains small Closterium concentrate；
2）Take the logarithm the scenedesmus obliquus in growth period, 5000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust
The density of frustule is 3 × 107Cell/mL, obtains scenedesmus obliquus concentrate；
3）Take the logarithm the crescent algae fibre in growth period, 5000rpm centrifugation 10min, remove supernatant, then add sterile water, adjust
The density for saving frustule is 1 × 107Cell/mL, obtains crescent algae fibre concentrate；
4）By small Closterium concentrate, scenedesmus obliquus concentrate and crescent algae fibre concentrate according to 2:2:1 volume ratio is mixed
Conjunction obtain mixing algae solution, then add account for mixing algae solution half volume concentration be 4wt% sodium alginate aqueous solution, account for
Mix the urea of 2% parts by weight of algae solution and account for the sodium acid carbonate of mixing 4% parts by weight of algae solution, stir evenly, then be added dropwise and account for mixing
The concentration of 2 times of volumes of algae solution is the calcium chloride water of 2wt%, is shaken when being added dropwise, and after being added dropwise, stands 9h, diameter is made
For the algae microballoon of 3mm.
Embodiment 4
Treated sewage compliance test result of the present invention：
By taking embodiment 1 as an example, into biological reaction pool before every major pollutants index of sewage be：COD 1186mg/
L、BOD 978 mg/L、NH3-N 209mg/L、SS 93mg/L、TP 87mg/L；
And control group is set, wherein, control group 1：Small Closterium is not added, remaining is the same as embodiment 1；Control group 2：Do not add tiltedly
Raw scenedesmus, remaining is the same as embodiment 1；Control group 3：Crescent algae fibre is not added, remaining is the same as embodiment 1.After being managed by each group other places,
Testing result is shown in Table 1：
Table 1
| Group | Embodiment 1（mg/L） | Control group 1（mg/L） | Control group 2（mg/L） | Control group 3（mg/L） |
| COD | 28.1 | 108.6 | 153.7 | 82.0 |
| BOD | 19.4 | 87.1 | 112.9 | 68.5 |
| NH3-N | 13.6 | 31.4 | 59.7 | 28.8 |
| SS | 10.3 | 26.8 | 34.5 | 21.4 |
| TP | 7.4 | 18.4 | 30.2 | 22.7 |
Conclusion：As shown in table 1, by embodiment 1, control group 1-3 processing after, COD, BOD, NH3-N, SS in sanitary sewage
And the pollutant level such as TP substantially reduces, by comparing, the ability of 1 group of treated sewage of embodiment is substantially better than control group 1-3,
Illustrate that three kinds of algae of 1 group of embodiment can be with symbiosis, compatibility is reasonable, possesses preferable synergistic effect.
Embodiment 5
Influence of the processing time to wastewater treatment efficiency：
By taking embodiment 1 as an example, into biological reaction pool before every major pollutants index of sewage be：COD 1186mg/
L、BOD 978 mg/L、NH3-N 209mg/L、SS 93mg/L、TP 87mg/L；Respectively at the 2nd day, the 4th day, the 6th day, the 8th
My god, the 10th day, the index of each pollutant in sampling Detection sewage, as shown in Figure 1, increasing over time, respectively polluted in sewage
Thing declines substantially, and after the 6th day, decrease speed starts to slow down, and by the 8th day, free of contamination decline was the most obvious, then to the 10th
My god, each pollutant index has been lifted, and may be better than the concentration reduction of pollutant and enough nutrients can not be provided to algae, cause
Algae Mortality, so as to cause deteriorating water quality.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although reference
The present invention is described in detail in previous embodiment, it will be understood by those of ordinary skill in the art that：It still can be right
Technical solution described in previous embodiment is modified, or carries out equivalent substitution to which part technical characteristic；And these
Modification is replaced, and the essence of appropriate technical solution is departed from the spirit and scope of technical solution of the embodiment of the present invention.
Claims (6)
1. a kind of technique using algae microballoon processing sanitary sewage, it includes the following steps：
Sanitary sewage passes sequentially through grid and slurry separator, removes solid matter, is aerated subsequently into aeration tank, is aerated 36-
48h, enters back into sedimentation basin, sedimentation time 12-24h, and supernatant liquid enters acid-base accommodation pond, and the pH for adjusting liquid is 7-7.5,
Biological reaction pool is entered back into, by algae microballoon according to 100-200g：The ratio of 1 ton of liquid is inoculated in liquid, processing time 6-8
My god, algae water separation is finally carried out, discharges liquid.
2. technique according to claim 1, it is characterised in that the algae microballoon is prepared according to following technique：
By small Closterium concentrate, scenedesmus obliquus concentrate and crescent algae fibre concentrate according to 2-3:1-2:The volume of 1-2
Than being mixed to get mixing algae solution, then add account for mixing algae solution half volume concentration be 4wt% sodium alginate it is water-soluble
Liquid, the urea for accounting for mixing 2% parts by weight of algae solution and the sodium acid carbonate for accounting for mixing 4% parts by weight of algae solution, stir evenly, then be added dropwise and account for
The concentration for mixing 2 times of volumes of algae solution is the calcium chloride water of 2wt%, is shaken when being added dropwise, and after being added dropwise, stands 9h, is made
The algae microballoon of a diameter of 3mm.
3. technique according to claim 2, it is characterised in that the preparation method of the small Closterium concentrate includes as follows
Step：Take the logarithm the small Closterium in growth period, 7000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust algae
The density of cell is 3-4 × 107Cell/mL, obtains small Closterium concentrate.
4. technique according to claim 2, it is characterised in that the preparation method of the scenedesmus obliquus includes the following steps：
Take the logarithm the scenedesmus obliquus in growth period, 5000rpm centrifugation 15min, remove supernatant, then add sterile water, adjust frustule
Density be 2-3 × 107Cell/mL, obtains scenedesmus obliquus concentrate.
5. technique according to claim 2, it is characterised in that the preparation method of the crescent algae fibre includes following step
Suddenly：Take the logarithm the crescent algae fibre in growth period, 5000rpm centrifugation 10min, remove supernatant, then add sterile water, adjust algae
The density of cell is 0.5-1 × 107Cell/mL, obtains crescent algae fibre concentrate.
6. technique according to claim 2, it is characterised in that the parameter of the biological reaction pool is：Temperature is 25-28
DEG C, Light To Dark Ratio 12：12, intensity of illumination 5000-10000LX.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107988079A (en) * | 2018-01-17 | 2018-05-04 | 陈英 | A kind of compound algae preparation for removing nitrogen and phosphorus pollutants |
| CN110272123A (en) * | 2019-07-03 | 2019-09-24 | 湘潭大学 | A method of immobilized algal-bacteria syntaxial system denitrogenation dephosphorizing efficiency is improved with inorganic carbon source |
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| CN107140742A (en) * | 2017-06-05 | 2017-09-08 | 舟山市普陀兴海养殖优质种苗选育研究所 | A kind of mixed type algae water cleanser and its application |
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| CN107988079B (en) * | 2018-01-17 | 2020-12-01 | 内蒙古优水环保科技有限公司 | Compound algae preparation for removing nitrogen and phosphorus pollutants |
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