CN102897923A - Bioleaching method for promoting deep dehydration of water-blooming cyanobacteria - Google Patents
Bioleaching method for promoting deep dehydration of water-blooming cyanobacteria Download PDFInfo
- Publication number
- CN102897923A CN102897923A CN2012104371459A CN201210437145A CN102897923A CN 102897923 A CN102897923 A CN 102897923A CN 2012104371459 A CN2012104371459 A CN 2012104371459A CN 201210437145 A CN201210437145 A CN 201210437145A CN 102897923 A CN102897923 A CN 102897923A
- Authority
- CN
- China
- Prior art keywords
- blue
- algae
- bioleaching
- water
- cyanobacteria
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
The invention relates to a bioleaching method for promoting deep dehydration of water-blooming cyanobacteria, and belongs to the technical field of environmental engineering. Fished cyanobacteria water is bioleached, so that the cyanobacteria is modified, the specific resistance is greatly reduced, the odor is removed; and the modified cyanobacteria is dehydrated by adopting a diaphragm compartment type filter press till the water content is less than 70 percent. The method comprises the following steps of: biologically conditioning concentrated cyanobacteria liquid by using bioleaching microbes using thiobacillus as a main body, wherein water in cyanobacteria cells is effectively released under the biological action; and dehydrating through the filter press to obtain cyanobacteria mud of which the water content is less than 70 percent, wherein the nutrient content of organic substances and the like in the cyanobacteria mud is not obviously reduced. According to the technical performance indexes, compared with similar technologies, the bioleaching method has the advantages that the dehydration effect of the method is superior, the method can be used for treating large-batch fished cyanobacteria and is low in cost, and the dehydrated cyanobacteria mud facilitates subsequent resource utilization.
Description
One, technical field
The present invention relates to a kind of bioleaching method that promotes the bloom blue algae deep dehydration, is the preconditioning technique in early stage of a kind of bloom blue algae minimizing and recycling, belongs to field of environment engineering technology.
Two, background technology
In recent years, the many water body in lake of China are eutrophication trend, and Dian Chi and Taihu Lake is the typical case the most.Often there is the blue algae bloom phenomenon in these lakes, affect safe drinking water and ecotope.Domestic and international improvement method to excessive blue-green algae in the water body can be divided into Physical, chemical method and biological process etc. at present.Physical take salvaging as major measure is one of conventional means of present domestic control blue-green algae, and the algae of salvaging or filtering out is the liquid object of water content 98%～99%.During blue algae bloom, only Taihu Lake has the blue-green algae of thousands of tons of to be salvaged or filtration treatment every day, although blue-green algae has avoided the further deterioration of water body in lake water quality after salvaging or filtering, its water ratio is high, does not have effective Disposal Measures, often causes secondary pollution.If the algae after salvaging or filtering can be carried out processed, obtain the follow-up disposal that the higher solid substance of solid content then is conducive to algae.Therefore, carrying out processed to salvaging the algae that comes, improve the dry matter content of Bloom-causing Algal mud, is the important step that realizes the innoxious and recycling of bloom blue algae.
So far, less for the patented technology of water bloom blue algae dewatering both at home and abroad.Main patent search result is as follows: patent No. ZL02276535.2 (Dian Pool blue algae pollution treatment device) has announced the treatment unit of a blue-green algae, its essence is a kind of dewatering unit that leaves standstill, although this device dehydration is economical, but the water ratio of the algae mud after the dehydration is unfavorable for follow-up recycling still more than 95%; The patent No. 200410067260.7 (removing the method for blue-green algae in the waters) report adds wilkinite, polymerize aluminum chloride and three kinds of flocculation agents of cationic polyacrylamide in the blue-green algae waters and makes blue-green algae flocculating settling in the water body, then salvage dehydration, the defective of this kind method is that the consumption of medicament is large, cost is high and is wayward, be not suitable for the extensive processing after lake blue algae breaks out, and the water ratio of the algae mud after the dehydration is still very high; The patent No. 200710025551.3 (method of water bloom blue algae dewatering) has been discussed and added flocculation agent cationic polyacrylamide, iron trichloride and coagulant aids thereof in the bloom blue algae of salvaging out, then whizzer and pressure filter dewater, shortcoming is that the cost of interpolation flocculation agent is higher, the water ratio of the algae mud after the dehydration is still higher simultaneously, is unfavorable for the recycling in later stage.And these methods also can not get effective control for stink and the pathogen salvaged in the blue algae water.
[0004] in recent years, its dehydration, stripping heavy metal, the effect of removing stink and killing pathogen are found to utilize bioleaching technology (Bioleaching) pretreating sludge to have and are promoted in research.If some patent (ZL02137921.1 of the bioleaching technology that the effect that utilizes microbial host acidophilia thiobacillus removes heavy metal in dirty (silts) mud (Bioleaching, in the past also title " bioleaching " or " bioleaching ") had once invented in this seminar; ZL02112924.X; ZL200410014801.X; ZL200410044843.8; ZL200520072316.8), the result shows, the bioleaching technology has the stripping Heavy Metals in Sludge, remove stink, kill pathogen in the mud and promote effect in the sludge dewatering, and this technology have advantages of do not consume acid, the chemical extraction method such as running cost is low, leaching ability of heavy metal efficient is high (can up to more than 90%), non-secondary pollution is incomparable, have a extensive future.And set up in the world first municipal sludge bioleaching processing plant in the jiangsu wuxi city on August 24th, 2010, scale is for day processing 50,000 tons of mud that sewage produces.Mud directly passes through mechanical dehydration after processing under the condition that does not add any flocculation agent, moisture percentage in sewage sludge is reached about 55%, and this technology also can make extrusion rate of heavy metals reach more than 80%, stench is eliminated, pathogen also is killed, and shows good industrialization prospect.But also do not adopt the bioleaching technology bloom blue algae to be carried out the report of deep dehydration at present.
Three, summary of the invention
Technical problem
The object of the present invention is to provide a kind of technique of novel bloom blue algae deep dehydration.The method of existing water bloom blue algae dewatering have medicament throwing amount large and be difficult to control, dewater after algae mud water content highly be unfavorable for the shortcomings such as stink in later stage recycling, the operating process and pathogen can not be effectively controlled.The present invention adopts bioleaching processing-barrier film chamber-type press filter filter-press dehydration technique, and blue algae dewatering is effective after processing, and the characteristics such as non-secondary pollution, and promotion prospect is good.
Technical scheme
The present invention relates to utilize bioleaching conditioning-filter press dehydration process, as shown in drawings, mainly consist of the following components:
1, add richness, domestication and the inoculum of Acidithiobacillus ferrooxidans prepare
The bacterial strain that is used for the algae bioleaching is the isolated acidophilia thiobacillus Acidithiobacillus ferrooxidans LX5 of this testing laboratory and Acidithiobacillus thiooxidans TS6, the patent No. is respectively ZL02112924.X and ZL02137921.1, and is combined with multiple acid proof heterotrophic bacterium.Acidophilia thiobacillus and other acid proof heterotrophic bacteriums are inoculated into 100mL separately in the proprietary substratum, and the 180rpm concussion is cultivated in 28 ℃ of reciprocating type shaking tables.Treat that bacterial strain quantity reaches 10 in the substratum
8Behind individual/mL, from substratum, draw again 10mL in the fresh substratum of 100mL, cultivate under the same terms, until bacterial strain quantity reaches 10 in the culture medium culturing base
8Individual/mL, thus acquisition adds the bacterial classification of rich and enlarged culturing.Bacterium liquid behind the absorption 15mL enrichment incubation contains the nutritive substances such as N, P, Fe, S in 135mL's for trying in the algae, adding by 2.0g/L, 28 ℃ of lower shaking culture, until pH drops to below 3.Continue again to cultivate once by above operation.When pH drops to 3 failures of oscillations when following, the acidifying algae of gained is through the inoculum that is used for the bioleaching test after the domestication.
2, algae bioleaching test
The technology key step of associating compost is as follows:
Be in the reactor of 700L in effective volume, add the 630L algae, inoculum is that 10% ratio is linked in the algae according to volume ratio, temperature maintains 28 ℃, use the air compressor air feed, adopt air-lift unit to stir, after reaction system pH is reduced to 3, finish this batch processed.Then the acidifying algae after bioleaching being processed mixes in the 1:1 ratio with original algae, proceeds the second batch bioleaching and processes, and other conditions all remain unchanged.Every 12h measures algae pH in each batch reaction process, and its resistivity of sampling and measuring.Question response is used 0.5m after finishing
2Test with barrier film chamber-type press filter filter-press dehydration.Result of study shows the dewatering that adopts bioleaching method energy Effective Raise algae, and its resistivity can be by 153.86 * 10 before processing
12M/kg is reduced to 7.80 * 10
12M/kg, the blue alga cake water ratio is 69% after the dehydration, shows that the bioleaching treatment effect is good.
3, the test of the algae barrier film van-type filter-press dehydration behind the bioleaching
With the directly press filtration under the barrier film chamber-type press filter of the algae after the bioleaching modification, advance algae time 2h, high pressure water squeezing pressurize 1h, feed pressure 0.6-0.8MPa, diaphragm pressing pressure 1.4MPa, the clarification of press filtration water colorless, blue-green algae mud is khaki color, odorless, and water ratio is below 70%, but the blue-green algae organic content also is not destroyed, and this blue-green algae mud directly carries out the thermophilic fermentation processing after the fragmentation.
Beneficial effect
The present invention has compared with prior art, has following advantage:
Can carry out to the blue-green algae of large batch of salvaging deep dehydration and process, reach the purpose that subtracts appearance.
Water ratio through dehydration blue-green algae after this invented technology processing can be reduced to below 70%, compares with conventional art to have larger advantage.
This invention is a kind of biologic treating technique, and the non-environmental-pollution problem is (without H in the treating processes
2S, NH
3And with low cost discharging Deng foul gas and waste water).
Dehydration blue-green algae organic content after the present invention processes is directly carried out thermophilic fermentation and is processed without any loss after the fragmentation, do not affect fertilizer efficiency.And because water content is low, greatly reduce the cost of follow-up disposal.
Four, description of drawings
Accompanying drawing isBloom blue algae bioleaching-barrier film van-type press filtration deep dehydration process flow sheet
Five, embodiment
The below narrates embodiments of the invention.
1, Mei Liangwan blue-green algae in Taihu Lake, Wuxi is salvaged the concentrated blue-green algae of station nature placement after 35 days
The mentioned technique according to the present invention is salvaged the station according to the flow process (see photo) to Taihu Lake, Wuxi Mei Liangwan blue-green algae and is salvaged blue-green algae and process.Getting approximately 8 tons of solid contents and be 0.87% blue algae water, is 3.37 * 10 through the resistivity of measuring blue-green algae
15M/kg, extremely difficult dehydration, and have stench.
The bioleaching stage: employing is take thiobacillus as main body and cooperate the bioleaching microorganism of some acid resistance heterotrophic bacteriums that concentrated blue-green algae liquid is nursed one's health, ratio according to pre-acidified inoculum and fresh concentrated blue algae water is that 1:9 joins in the reactor of 700L, under the condition of ventilation aeration, carry out stirring and evenly mixing, make microorganism act on better blue algae water, be under 28 ℃ in temperature, process through the 48h-72h bioleaching, the pH of blue algae water system drops to about 3, and the resistivity of blue algae water is down to 7.3 * 10 at this moment after measured
12M/kg, this moment, the settling property of blue algae water also obtained significantly improving.
The filter-press dehydration stage: with blue algae water directly press filtration under the barrier film chamber-type press filter of above-mentioned bioleaching post-modification, advance algae time 2h, high pressure water squeezing pressurize 1h, feed pressure 0.6-0.8MPa, diaphragm pressing pressure 1.4MPa, the clarification of press filtration this moment water colorless, the blue-green algae mud that squeezes out is khaki color, odorless, water ratio 68%, and the content of the organic matter in the blue-green algae mud does not obviously reduce, and is convenient to follow-up recycling.
2, the Chaohu, Anhui Province, China blue-green algae is salvaged the station blue-green algae
The mentioned technique according to the present invention is salvaged the station blue-green algae according to flow process (see photo) Chaohu, Anhui Province, China blue-green algae and is processed.Getting approximately 5 tons of solid contents and be 1.2% blue algae water, is 4.10 * 10 through the resistivity of measuring blue-green algae
15M/kg, extremely difficult dehydration, and have stench.
The bioleaching stage: adopt equally take thiobacillus as main body and cooperate some acid proof heterotrophic bacteriums that concentrated blue-green algae liquid is nursed one's health, ratio according to pre-acidified inoculum and fresh concentrated blue algae water is that 1:9 joins in the reactor of 700L, under the condition of ventilation aeration, carry out stirring and evenly mixing, make microorganism act on better blue algae water, be under 28 ℃ in temperature, process through the 48-72h bioleaching, the pH of blue algae water system drops to about 3, and the resistivity of blue algae water is down to 9.2 * 10 at this moment after measured
12M/kg, the settling property of blue algae water of this moment have obtained significantly improving, standing sedimentation after 24 hours the shared ratio of supernatant be about 30%.
The filter-press dehydration stage: the modification blue algae water sedimentation in settling bowl behind the above-mentioned bioleaching, then the concentrated modification blue algae water after the sedimentation is entered direct filter-press dehydration in the barrier film chamber-type press filter, advance algae time 2h, high pressure water squeezing pressurize 1h, feed pressure 0.6-0.8MPa, diaphragm pressing pressure 1.4MPa finds the pressure filtration yielding water achromaticity and clarification, the blue-green algae mud that squeezes out is khaki color, odorless.Through measuring the water ratio 69% of the algae mud cake after finding to dewater, the content of the organic matter in the blue-green algae mud is also without considerable change.
Above-mentioned each example is not to concrete restriction of the present invention.
Claims (5)
1. bioleaching method that promotes the bloom blue algae deep dehydration, it is characterized in that it carries out bioleaching with the blue algae water of salvaging and process, make blue-green algae obtain modification, water is fully discharged in the born of the same parents, blue algae water resistivity decrease, stink disappears, and then adopts the barrier film chamber-type press filter to make the modification blue algae dewatering to moisture below 70%.
2. according to right 1 described a kind of bioleaching method that promotes the bloom blue algae deep dehydration, it is characterized in that described bloom blue algae refers to the blue-green algae of salvaging with artificial or mechanical method, moisture 98%-99% from the lake of the eutrophication that forms wawter bloom or other impounded bodies.
3. according to right 1 described a kind of bioleaching method that promotes the bloom blue algae deep dehydration, it is characterized in that described bioleaching refers to adopt microorganism species take thiobacillus as main body and that cooperate some acid resistance heterotrophic bacteriums that concentrated blue-green algae liquid is nursed one's health, and under the condition of blast aeration, carry out stirring and evenly mixing, make microorganism act on better blue algae water, be under 28 ℃ in temperature, process through the 48h-72h bioleaching, the dewatering of concentrated blue-green algae was greatly improved after drop soaked and finishes.
4. according to right 1 described a kind of bioleaching method that promotes the bloom blue algae deep dehydration, the concentrated blue-green algae of modification after it is characterized in that drop soaked is by barrier film chamber-type press filter press dewatering, it is 2h that pressure filter advances to concentrate the blue-green algae time, high pressure water squeezing pressurize 1h, feed pressure 0.6-0.8MPa, diaphragm pressing pressure 1.4MPa.
5. according to right 1 and 4 described deep dehydration methods for bloom blue algae, it is characterized in that being down to below 70% through the moisture of algae mud behind bioleaching-barrier film chamber-type press filter press dewatering, the blue-green algae mud cake is khaki color, odorless, and content organic in the blue-green algae mud is convenient to follow-up recycling in dry-matter and free of losses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104371459A CN102897923A (en) | 2012-11-06 | 2012-11-06 | Bioleaching method for promoting deep dehydration of water-blooming cyanobacteria |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104371459A CN102897923A (en) | 2012-11-06 | 2012-11-06 | Bioleaching method for promoting deep dehydration of water-blooming cyanobacteria |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102897923A true CN102897923A (en) | 2013-01-30 |
Family
ID=47570459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104371459A Pending CN102897923A (en) | 2012-11-06 | 2012-11-06 | Bioleaching method for promoting deep dehydration of water-blooming cyanobacteria |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102897923A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112338A (en) * | 2015-09-17 | 2015-12-02 | 中国科学院南京地理与湖泊研究所 | Method capable of utilizing lake cyanobacterial blooms to culture planktonic algae |
| CN109553266A (en) * | 2019-01-16 | 2019-04-02 | 无锡太湖水务有限公司 | A kind of method of cyanobacteria deep dehydration |
| CN109912083A (en) * | 2019-03-04 | 2019-06-21 | 河海大学 | A kind of method of the electrochemistry detoxification and deep dehydration of cyanobacteria liquid |
| CN111977904A (en) * | 2020-08-20 | 2020-11-24 | 福建莱诺尔生物科技有限公司 | Blue algae recycling treatment method |
| CN111995445A (en) * | 2020-09-07 | 2020-11-27 | 无锡东方船研水环境科技有限公司 | Blue algae dehydration algae mud waste treatment process |
-
2012
- 2012-11-06 CN CN2012104371459A patent/CN102897923A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库 工程科技I辑》 20120329 任云 "太湖水华蓝藻脱水及好氧堆肥技术研究" D043-20 1-5 , 第6期 * |
| 任云: ""太湖水华蓝藻脱水及好氧堆肥技术研究"", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105112338A (en) * | 2015-09-17 | 2015-12-02 | 中国科学院南京地理与湖泊研究所 | Method capable of utilizing lake cyanobacterial blooms to culture planktonic algae |
| CN105112338B (en) * | 2015-09-17 | 2019-01-22 | 中国科学院南京地理与湖泊研究所 | A method of utilizing lake blue algae wawter bloom culture planktonic green algae |
| CN109553266A (en) * | 2019-01-16 | 2019-04-02 | 无锡太湖水务有限公司 | A kind of method of cyanobacteria deep dehydration |
| CN109912083A (en) * | 2019-03-04 | 2019-06-21 | 河海大学 | A kind of method of the electrochemistry detoxification and deep dehydration of cyanobacteria liquid |
| CN109912083B (en) * | 2019-03-04 | 2021-06-25 | 河海大学 | Electrochemical detoxification and deep dehydration method for blue algae liquid |
| CN111977904A (en) * | 2020-08-20 | 2020-11-24 | 福建莱诺尔生物科技有限公司 | Blue algae recycling treatment method |
| CN111995445A (en) * | 2020-09-07 | 2020-11-27 | 无锡东方船研水环境科技有限公司 | Blue algae dehydration algae mud waste treatment process |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103936246B (en) | A kind of sludge bioleaching method nurses one's health the method for deep dehydration fast | |
| CN108083597B (en) | Composite microbial liquid for treating anaerobic digestion sludge and novel bioleaching method | |
| CN101225405A (en) | Method for producing microbial flocculant and method of use thereof | |
| CN108998386B (en) | Phagocytic bacteria applied to deep dehydration of sludge | |
| CN109554314B (en) | Salt-tolerant biological desulfurization microbial inoculum and application thereof | |
| CN102897923A (en) | Bioleaching method for promoting deep dehydration of water-blooming cyanobacteria | |
| CN112553095B (en) | Compound microbial inoculum for treating high-concentration kitchen wastewater and preparation method thereof | |
| Bao-jun et al. | The research status and development trend of microbial flocculant | |
| CN114751520B (en) | Method for treating ammonia sugar processing wastewater by utilizing fungus microalgae symbiotic system | |
| CN104445851A (en) | Method for recycling sludge processing waste liquid to promote sludge harmless treatment | |
| CN102633405B (en) | Treatment method of papermaking black liquor | |
| CN101219828A (en) | Blue algae water bloom bioflocculation agent and production | |
| CN105502852B (en) | A kind of method of quick processing garbage burning factory landfill leachate | |
| Wang et al. | Enhancing nitrogen removal in mature landfill leachate by mixed microalgae through elimination of inhibiting factors | |
| CN102250776A (en) | Acid-resistance heterotrophic bacterium strain Z3 used for bioleaching treatment of sludge and livestock and poultry manure | |
| CN110218682A (en) | One plant of pseudomycete sample bacillus and its application in mud decrement | |
| CN111394260B (en) | Separation and application of microorganisms for treating wastewater | |
| CN111826292B (en) | Yeast RY-6 and application thereof | |
| CN209113686U (en) | A kind of combination unit handling hc effluent with high salt | |
| CN110683725A (en) | Sludge dewatering method by coupling microbial cracking pretreatment and PAM flocculant chemical flocculation | |
| CN110526532A (en) | Utilize the innoxious method with minimizing processing sludge preparation gardens fertilizer of microorganism | |
| CN103045649B (en) | Method for preparing microbial flocculant form potato starch wastewater as raw material | |
| CN110342651A (en) | A kind of microbial enzyme compound formulation and preparation method thereof and its application in processing trade effluent or landfill leachate | |
| CN104743760A (en) | Method for synchronously implementing sludge strengthened dewatering and increasing bio-adsorbent yield | |
| CN110104921B (en) | Method for improving dewatering performance of waste activated sludge by adding microbial fermentation liquor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |