CN106242652A - A kind of blue algae dewatering composting treatment method - Google Patents
A kind of blue algae dewatering composting treatment method Download PDFInfo
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- CN106242652A CN106242652A CN201610618474.1A CN201610618474A CN106242652A CN 106242652 A CN106242652 A CN 106242652A CN 201610618474 A CN201610618474 A CN 201610618474A CN 106242652 A CN106242652 A CN 106242652A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
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- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
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Abstract
A kind of blue algae dewatering composting treatment method, it is characterized in that, for open (ground) water source blue-green alga bloom pollution problem, proposing to be dehydrated with electroosmotic dewatering device salvaging after the cyanophyceae collected is dehydrated by centrifugation, the cyanophyceae moisture content after dehydration can reach less than 60%.Again algae mud and engineering being compounded function microbial inoculum hybrid composting by a certain percentage, fermentation temperature reaches as high as 105 DEG C.Blue alga compost after becoming thoroughly decomposed meets the requirement of " People's Republic of China's agricultural industry criteria one organic fertilizer (NY525 1) ".The present invention is a kind of new method processing cyanophyceae, have simple to operate, operating cost is low, the feature of environmental protection, provides outlet for open (ground) water source algal bloom pollution control.
Description
Technical field
The present invention relates to algae processed field, opening (ground) water source, especially relate to a kind of blue algae dewatering and process
Method.
Background technology
Algae is to be distributed the widest, is also one of biology that tolerance is the strongest, and whether extremely tremble with fear environment in polar region, close to boiling
Water body, or salinity far surpasses in the salina of sea water, has the growth of algae.Even if in desert, it also is able under existence
Go.In lake and river, algae relies on the raw procreation of dirt evil.
China's economic development is rapid, population increases too fast, and the various nutrient substance that human activity produces flow in water body, lead
Cause lake, river and offshore waters body eutrophication process constantly to accelerate, destroy the ecological balance of water body, thus the tightest
The eutrophication water of weight has injured water supply, resident living and the socio-economic development of locality.China middle and lower reach of Yangtze River
Many water body in lake eutrophication are the most serious, and blue-green alga bloom in fresh water eutrophic water body, relatively conventional and harm is relatively
Greatly.
When the lakes such as well-known Taihu Lake, Chaohu one are to summer high temperature weather, lake surface arises that what large area was broken out
Cyanophyceae.Have studied the multiple method administering cyanophyceae at present both at home and abroad, have the methods such as physics, chemistry, biology, biochemistry.Wherein chemistry
Aquatile is harmful to by method, easily causes secondary pollution；Bioanalysis cost is big and takes effect slow；The most usual for the process of cyanophyceae
It is by salvaging, including manually salvaging and inhaling algae ship.The cyanophyceae moisture content salvaged is the highest, and general 95%-99%, moisture content is too high not
It is beneficial to the disposal of cyanophyceae, so the cyanophyceae salvaged is carried out processed.Patent publication No. CN100506341C discloses water
The dewatering of Chinese blue algae, it is characterised in that add flocculant and auxiliary agent thereof, carry out pressure filter filter-press dehydration after centrifuge dehydration,
Whole moisture content reaches 75%-80%.Patent No. CN101648092B discloses a kind of blue algae dewatering processing method, it is characterised in that will
Cyanophyceae and flocculant pump into a pressure filter respectively, carry out a filter pressing, make algal biscuit after mixing.Pressure filter filtrate with
Backwash water outlet carries out secondary filter pressing, makes algal biscuit.These methods are required for adding flocculant, add cost and introduce new
Material, change the original characteristic of cyanophyceae and dewatering efficiency be the highest, have much room for improvement.
Long-term research shows, algae-residue is more intractable, and reason has 3 points:Alga cells wall is relatively thin, by cellulose and fruit
Colloid forms, and outer is wrapped up by thicker colloid sheath, and physical method is extremely difficult to be abolished.The moisture content of wet algae-residue is about 97%, algae-residue
A more stable system is formed, it is difficult to separate with water.The amount of algae-residue is the biggest, it is difficult to find rational process approach.
Thinking in application before, algae-residue filter press dehydrating effect is preferable.But medicament to be added conditioning before Tuo Shui,
General Calx adds ferric chloride or Calx addition polymerization aluminum, and comparatively speaking, dehydration rate is only about 20%.It addition, chloride medicament used
Be added in water and easily produce the carcinogenic by-products such as halogenated hydrocarbons, the addition of poly-aluminium flocculating agent is as aluminum ions residual is tired out
Amass and be detrimental to health, thus bring secondary pollution.
Summary of the invention
The cyanophyceae moisture content that present invention aims to salvage at opening (ground) water source is high, is unfavorable for follow-up place
Put, and physics dehydration is added the problem that the medicaments such as conditioning flocculation bring secondary pollution, it is proposed that a kind of blue algae dewatering
Composting treatment method.Moisture content after making blue algae dewatering in the case of without medicaments such as any conditioning flocculations reach 20% with
Under, preferably realize the recycling of cyanophyceae.
For solving above-mentioned technical problem, the invention provides techniques below scheme: a kind of blue algae dewatering composting treatment method,
It is characterized in that comprising the following steps: be dehydrated salvaging after the cyanophyceae collected is dehydrated by centrifugation with electroosmotic dewatering device,
Again algae mud and engineering being compounded function microbial inoculum hybrid composting, the Blue alga compost pH value after becoming thoroughly decomposed is 8.05, the content of organic matter is
32.62%, total nitrogen content be 1.59%, full phosphorus (P2O5) content be 0.99%, full potassium (K2O) content be 1.5%, total nutrient (nitrogen+five
Aoxidizing two phosphorus+potassium oxide) content reaches 4%.
As preferably, engineering compounds function microbial inoculum and includes that the engineering that mass percent is 0.1% ~ 4% compounds function strain, its
Remaining is culture medium.
As preferably, centrifuge dehydration uses centrifuge to carry out first step dehydration, and moisture content is down to about 85% from 95%-99%.
As preferably, engineering compounds function strain and includes bacillus subtilis (AJ276351), thermophilic sugar coccus
(X70430), high temperature lignin-degrading bacteria (AF067651), hot glucosidase soil bacillus cereus (AY608981), thermophilic denitrifying bud
Spore bacillus (AY608961), Geobacillus stearothermophilus (AB271757), thermophilic acidophilic oil soil bacillus cereus (Z26923), soil bud
Spore bacillus (AJ564616), YMO81(AB250968), YMO722(AB308475), thermophilic actinomycete (AB088364), high temperature puts
Line bacterium (AB088361), the one of thermophilic actinomycete (DQ119659) or combination.
As preferably, the algae mud after electroosmotic dewatering is dehydrated further by heating drier, and algal biscuit moisture content can be made to reach
Less than 20%.
The operation principle of the present invention: by algae mud amount and the control of character, algae mud carries out electroosmotic dewatering, i.e. at electric field
Under the effect of power, making electronegative Cells of Blue-green Algae move to positive pole, the aqueous solution of positively charged moves to negative pole, and cell wall breaking removes
In conjunction with water, thus realize the deep dehydration of algae mud.Dehydrated sludge moisture content can be down to less than 60%, even lower.Electro-osmosis takes off
The DC electric field of the water device destruction to Cells of Blue-green Algae surface sheath, it is to avoid the swelling of cyanophyceae, to controlling subsequent fermentation
Stability play a crucial role.
Taihu Lake cyanophyceae nitrogen content and phosphorus content are up to 98.88g/Kg and 9.5g/Kg respectively, are fertilizer by blue algae fermentation
Material, its fertilizer efficiency is better than general chemical fertilizer, and nitrogen, phosphorus, potassium content are above the vegetalitas organic fertilizer such as soybean cake, Herba Astragali Melilotoidis (Herba Astragali Sinici), and without right
The heavy metal that crop and human body are harmful to, will not contaminated soil after using.
Bacillus subtilis (AJ276351)；Thermophilic sugar coccus (X70430)；High temperature lignin-degrading bacteria (AF067651)；
Hot glucosidase soil bacillus cereus (AY608981)；Thermophilic denitrifying bacillocin (AY608961)；Geobacillus stearothermophilus
(AB271757)；Thermophilic acidophilic oil soil bacillus cereus (Z26923)；Soil bacillus cereus (AJ564616)；YMO81(AB250968)；
YMO722(AB308475)；Thermophilic actinomycete (AB088364)；Thermophilic actinomycete (AB088361)；Thermophilic actinomycete
(DQ119659) engineering compounds function microbial inoculum and mixes mixed fermentation with algae mud, can the most effectively shelter the difficulty sent in cyanophyceae catabolic process
Smelling the odour.
Directly drink and contact the water containing Algae toxins, human body can be produced bigger harm, directly use cyanophyceae organic
Fertilizer should avoid Algae toxins leaching risk in soil as far as possible, and bacstearothermophilus engineering compounds function microbial inoculum to algae poison
Prime system polypeptides matter chain-scission degradation utilizes, and as Algae toxins low concentration (less than 10pg/L), can promote plant growth.
The method have the benefit that electroosmotic dewatering technology is theoretical according to electrophoresis, in conjunction with mechanical dehydration principle, electroosmotic dewatering
The surface texture of alga cells in water is had a significant impact by the DC electric field of device, destroys the surface sheath of cell.Cause algae
The sheath of class cell ruptures and makes it outwards discharge intracellular organic matter, from initial 80%, cyanophyceae moisture content can be dropped to less than 60%,
This is that other dewaterings are not reached, and can fully reduce the volume of cyanophyceae, reduces freight；Without adding anyization again
Learning reagent, only need to provide power supply, operating cost is low；Cyanophyceae moisture content after electroosmotic dewatering is the lowest, enters back into drying machine and does
Follow-up resource utilization can be improved after dry；The method automaticity of electroosmotic dewatering is high, easy and simple to handle, manual labor amount
Few.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention.
Detailed description of the invention
Embodiment 1: a kind of blue algae dewatering composting treatment method, comprises the following steps: will salvage the cyanophyceae collected by centrifugation
Being dehydrated with electroosmotic dewatering device after dehydration, then algae mud and engineering are compounded function microbial inoculum hybrid composting, compost thickness is
20 ~ 30cm, is inserted with aerated conduit in compost hybrid reactor, and the Blue alga compost pH value after becoming thoroughly decomposed is 8.05, the content of organic matter is
32.62%, total nitrogen content be 1.59%, full phosphorus (P2O5) content be 0.99%, full potassium (K2O) content be 1.5%, total nutrient (nitrogen+five
Aoxidizing two phosphorus+potassium oxide) content reaches 4%.Centrifuge dehydration uses centrifuge to carry out first step dehydration, and moisture content drops from 95%-99%
To about 85%.Engineering compounds function microbial inoculum and includes that the engineering that mass percent is 4% compounds function strain, and remaining is culture medium.
Engineering compounds function strain and includes by percentage to the quality: 10% bacillus subtilis (AJ276351), 20% thermophilic
Sugar coccus (X70430), 5% high temperature lignin-degrading bacteria (AF067651), 17% hot glucosidase soil bacillus cereus
(AY608981), 13% thermophilic denitrifying bacillocin (AY608961), 3% Geobacillus stearothermophilus (AB271757), 7% addicted to
Heat addicted to oil soil bacillus cereus (Z26923), 8% soil bacillus cereus (AJ564616), 10%YMO81(AB250968), 5%YMO722
(AB308475), 2% thermophilic actinomycete (AB088364), the algae mud after electroosmotic dewatering is dehydrated further by heating drier, can
Algal biscuit moisture content is made to reach less than 20%.Dehydration completes, and is packed by algal biscuit, batch machining, it is achieved recycling.
Embodiment 2: with reference to embodiment 1: engineering compounds function microbial inoculum and includes that the engineering that mass percent is 2% compounds function
Strain, remaining is culture medium.Engineering compounds function strain and includes by percentage to the quality: 10% bacillus subtilis
(AJ276351), 15% thermophilic sugar coccus (X70430), 5% high temperature lignin-degrading bacteria (AF067651), 14% hot glucosidase soil
Bacillus cereus (AY608981), 13% thermophilic denitrifying bacillocin (AY608961), 15% Geobacillus stearothermophilus
(AB271757), 8% soil bacillus cereus (AJ564616), 10%YMO81(AB250968), 5%YMO722(AB308475), 5% high
Temperature actinomycetes (AB088361).
Embodiment 3, with reference to embodiment 1, engineering compounds function microbial inoculum and includes that the engineering that mass percent is 0.5% compounds merit
Energy strain, remaining is culture medium.Engineering compounds function strain and includes by percentage to the quality: 5 % bacillus subtilises
(AJ276351), 20% thermophilic sugar coccus (X70430), 5% high temperature lignin-degrading bacteria (AF067651), 17% hot glucosidase soil
Bacillus cereus (AY608981), 7% thermophilic denitrifying bacillocin (AY608961), 21% Geobacillus stearothermophilus
(AB271757), 18% soil bacillus cereus (AJ564616), 5%YMO722(AB308475), 2% thermophilic actinomycete (AB088361).
Above-mentioned embodiment is not limitation of the present invention, and all technology realized based on present invention belong to this
The scope of invention.
Claims (4)
1. a blue algae dewatering composting treatment method, it is characterised in that comprise the following steps: the cyanophyceae collected will be salvaged by centrifugation
It is dehydrated with electroosmotic dewatering device after dehydration, then algae mud and engineering are compounded function microbial inoculum hybrid composting, the indigo plant after becoming thoroughly decomposed
Algae pH value of compost is 8.05, the content of organic matter is 32.62%, total nitrogen content is 1.59%, full phosphorus (P2O5) content is 0.99%, complete
Potassium (K2O) content is 1.5%, and total nutrient (nitrogen+phosphorus pentoxide+potassium oxide) content reaches 4%.
A kind of blue algae dewatering composting treatment method, it is characterised in that engineering compounds function microbial inoculum bag
Including the engineering that mass percent is 0.1% ~ 4% and compound function strain, remaining is culture medium.
A kind of blue algae dewatering composting treatment method, it is characterised in that centrifuge dehydration uses centrifuge
Carrying out first step dehydration, moisture content is down to about 85% from 95%-99%.
A kind of blue algae dewatering composting treatment method, it is characterised in that engineering compounds function strain bag
Include bacillus subtilis (AJ276351), thermophilic sugar coccus (X70430), high temperature lignin-degrading bacteria (AF067651), hot glucose
Glycosides enzyme soil bacillus cereus (AY608981), thermophilic denitrifying bacillocin (AY608961), Geobacillus stearothermophilus
(AB271757), thermophilic acidophilic oil soil bacillus cereus (Z26923), soil bacillus cereus (AJ564616), YMO81(AB250968),
YMO722(AB308475), thermophilic actinomycete (AB088364), thermophilic actinomycete (AB088361), thermophilic actinomycete
(DQ119659) one or combination.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162656A (en) * | 2017-06-29 | 2017-09-15 | 江苏省农业科学院 | A kind of feces of livestock and poultry superhigh temperature compost method |
| CN109610426A (en) * | 2019-01-04 | 2019-04-12 | 中交（天津）生态环保设计研究院有限公司 | A kind of movable type algae collection-compost integrated apparatus |
| 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 |
| CN110078571A (en) * | 2019-04-29 | 2019-08-02 | 胡榕泉 | A kind of blue-green algae treatment method |
| CN110540268A (en) * | 2019-04-18 | 2019-12-06 | 贵州民族大学 | Electric field algae removal structure |
| WO2022104772A1 (en) * | 2020-11-23 | 2022-05-27 | 南京溧水高新创业投资管理有限公司 | Cyanobacteria composting composite microbial agent and preparation method therefor |
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| CN102503596A (en) * | 2011-10-28 | 2012-06-20 | 合肥市东方美捷分子材料技术有限公司 | Method for converting blue algae mud into organic fertilizer by thermal composting |
| CN204007017U (en) * | 2014-08-20 | 2014-12-10 | 无锡德林海藻水分离技术发展有限公司 | The special desiccation apparatus of a kind of blue algae mud |
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| CN1559993A (en) * | 2004-03-03 | 2005-01-05 | 中国科学院水生生物研究所 | Composite manure for blue alga of water bloom and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107162656A (en) * | 2017-06-29 | 2017-09-15 | 江苏省农业科学院 | A kind of feces of livestock and poultry superhigh temperature compost method |
| CN109610426A (en) * | 2019-01-04 | 2019-04-12 | 中交（天津）生态环保设计研究院有限公司 | A kind of movable type algae collection-compost integrated apparatus |
| CN109610426B (en) * | 2019-01-04 | 2024-04-09 | 中交（天津）生态环保设计研究院有限公司 | Movable algae collecting-composting integrated device |
| 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 |
| CN110540268A (en) * | 2019-04-18 | 2019-12-06 | 贵州民族大学 | Electric field algae removal structure |
| CN110078571A (en) * | 2019-04-29 | 2019-08-02 | 胡榕泉 | A kind of blue-green algae treatment method |
| WO2022104772A1 (en) * | 2020-11-23 | 2022-05-27 | 南京溧水高新创业投资管理有限公司 | Cyanobacteria composting composite microbial agent and preparation method therefor |
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