CN105800892A - Blue-green algae and excess sludge resourceful treatment method - Google Patents
Blue-green algae and excess sludge resourceful treatment method Download PDFInfo
- Publication number
- CN105800892A CN105800892A CN201610320146.3A CN201610320146A CN105800892A CN 105800892 A CN105800892 A CN 105800892A CN 201610320146 A CN201610320146 A CN 201610320146A CN 105800892 A CN105800892 A CN 105800892A
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- Prior art keywords
- mud
- sludge
- excess sludge
- cyanophyceae
- blue
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Classifications
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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
-
- 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
-
- 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
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a blue-green algae and excess sludge resourceful treatment method.Blue-green algae with water content of 95-98% and excess sludge are mixed according to the mass ratio of 1:100 to 1:5, dry solid flocculant is added according to the mass percentage of 1%o to 8%o, the materials are sent into a plate frame pressure filter, and sludge cakes with water content of 70-80% is obtained after dewatering.Then, the mud cakes are sent to a storage yard, sludge drying is further achieved through solar drying and air blowing measures, mud cakes are sent into a sludge granulating device to prepare granules with granularity of 2-4 mm and water content of 5-15%.The method has the advantages that blue-green algae and excess sludge can be effectively used as raw materials, nitrogen phosphorus and potassium organic fertilizer contained in blue-green algae and excess sludge is sufficiently used for preparing garden greening and biological agriculture organic slow-release fertilizer, and harmless treatment and resource utilization of blue-green algae and excess sludge are achieved.
Description
Technical field
The present invention relates to solid waste disposal field, particularly belong to a kind of cyanophyceae and excess sludge recycling treatment side
Method.
Background technology
In natural water environment, the content of material such as nitrogen, phosphorus is too much, and aquatile particularly algae excessive can be made numerous
Grow, destroy the ecological balance of water body, form serious lake eutrophication.Along with economic development and society
Demand, water environment treatment, especially lake eutrophication have become as the current primary problem solved.
China administers the main method of cyanophyceae has biological harnessing method, efficient salvaging method, engineering to dredge method.Wherein,
Method is dredged most commonly seen with efficient salvaging method and engineering.Both approaches can the short time by cyanophyceae from water body
Separate, but how the algae mud separated is disposed and be still the difficult problem that difficulty cyanophyceae is administered.
At present, annual China municipal wastewater treatment plant all can produce a large amount of excess sludge, has become as Sewage Plant operation
Heavy burden.Arbitrarily disposing and environment will causing serious secondary pollution of mud, wastes mud simultaneously
Resource characteristics.It should be noted that mud granulizing technology has aobvious for making full use of nitrogen phosphor resource in mud
The advantage write, and this point is perfectly in harmony with the disposal of resources approach of cyanophyceae.Therefore, cyanophyceae is used to join with mud
Close granulating disposal technology and would is that solution algae mud and the novel approach of sludge treatment.
Summary of the invention
It is desirable to provide a kind of cyanophyceae and excess sludge recycling processing method, to solve municipal sludge and algae
Mud disposal difficulties, and make full use of both and produce economic benefit as organic fertilizer, it is to avoid secondary pollution problem.
Technical scheme is as follows:
A kind of cyanophyceae and the method for excess sludge mixed dehydration pelletize composting, include following processing step:
1), the cyanophyceae of moisture content 95%-98% and the excess sludge after sludge concentration tank gravitational settling are pressed
Mix according to mass ratio 1/100-1/5；
2), cyanophyceae and mud mixture are sent into stirring pool, add the wadding that dry solid mass ratio is 1 ‰-8 ‰
Solidifying agent, quickly stirs, and mixing time is 5-60s, is then fed into filter press, is contained after dehydration
Water rate is the mud cake of 70-80%；
3), mud cake is transported to stockyard by conveyer belt, utilizes solar temperature rising to heat mud, and logical by machinery
Wind measure realizes sludge drying further；
4), mud after mummification being sent into mud granulizing equipment, making particle diameter is 2-4mm granule, and moisture content is
5%-15%.
Described cyanophyceae is that moisture content reaches the algae slurry of 95%-98% through collecting and simple dehydration process；Described
Excess sludge refers to that the excess sludge that traditional activated sludge process produces processes through concentrating and precipitating, and moisture content reaches
95%-98%.
Described cyanophyceae and excess sludge mix according to mass ratio 1/100-1/5；The described flocculant that adds is according to dry
Solid masses ratio is 1 ‰-8 ‰；The described flocculant that adds is PAMC.
The stirring reaction of described flocculant refers to that utilizing mechanical agitation to realize algae mud mixes with the quick of flocculant, mixing
Time controls at 5-60s, and filter press is the conventional pressure filter that excess sludge of municipal sewage plant is disposed.
Described utilize solar energy drying and air blast measure to realize sludge drying further to refer to through filter-press dehydration
Mud is positioned over stockyard, and uses solar energy heating and venting practice to accelerate the drying process of mud.
The described mud cake through drying and other treatment sends into mud granulizing equipment, and making particle diameter is 2-4mm organic granular,
Moisture content is 5%-15%.
The invention has the beneficial effects as follows:
Can effectively utilize cyanophyceae and excess sludge as raw material, make full use of the organic of the N P and K that both contain
Fertilizer, makes the organic slow-release fertilizer being applicable to afforestation, the ecological agriculture, it is achieved cyanophyceae and excess sludge harmless
Change process and recycling.
Accompanying drawing explanation
Fig. 1 is the process chart of the embodiment of the present invention 1.
Label in figure: 1,2 is mud pipeline, 3 and 4 is mud conveyer belt, and A is sludge concentration tank, and B is
Coagulation stirring pool, C is pressure filter, and D is sludge drying bed, and E is sludge granulator.
Detailed description of the invention
Embodiment 1:
The 1 enforcement present invention implements the process chart detailed description of technical scheme, the present embodiment below in conjunction with the accompanying drawings
Realize cyanophyceae and excess sludge recycling processing method is achieved in that
A kind of cyanophyceae and the method for excess sludge mixed dehydration pelletize composting, include following processing step:
1), the cyanophyceae of moisture content 95%-98% and the excess sludge after sludge concentration tank gravitational settling are pressed
Mix according to mass ratio 1/100-1/5；
2), cyanophyceae and mud mixture are sent into stirring pool, add the wadding that dry solid mass ratio is 1 ‰-8 ‰
Solidifying agent, quickly stirs, and mixing time is 5-60s, is then fed into filter press, is contained after dehydration
Water rate is the mud cake of 70-80%；
3), mud cake is transported to stockyard by conveyer belt, utilizes solar temperature rising to heat mud, and logical by machinery
Wind measure realizes sludge drying further；
4), mud after mummification being sent into mud granulizing equipment, making particle diameter is 2-4mm granule, and moisture content is
5%-15%.
Wherein, cyanophyceae is that moisture content reaches the algae slurry of 95%-98% through collecting and simple dehydration process；Surplus
Remaining mud refers to that the excess sludge that traditional activated sludge process produces processes through concentrating and precipitating, and moisture content reaches
95%-98%.Cyanophyceae and excess sludge mix according to mass ratio 1/100-1/5；Described add flocculant according to
Dry solid mass ratio is 1 ‰-8 ‰；The described flocculant that adds is PAMC.Flocculant stirs
Reaction refers to that utilizing mechanical agitation to realize algae mud mixes with the quick of flocculant, and incorporation time controls at 5-60s,
Filter press is the conventional pressure filter that excess sludge of municipal sewage plant is disposed.Utilize solar energy drying and
Air blast measure realizes sludge drying further and refers to be positioned over stockyard through the mud of filter-press dehydration, and uses the sun
Can heating and the drying process of venting practice acceleration mud.Mud cake through drying and other treatment is sent into mud granulizing and is set
Standby, making particle diameter is 2-4mm organic granular, and moisture content is 5%-15%.
Experimental result before and after using traditional sludge burning process and using above-mentioned embodiment is as shown in table 1:
From table 1 it follows that the mode of the present embodiment is to cyanophyceae and Treatment of Sludge cost and conventional incineration technique
Cost low, make the organic slow-release fertilizer being applicable to afforestation, the ecological agriculture, it is achieved cyanophyceae and residue dirt
The harmless treatment of mud and recycling, dewatered sludge the most per ton burns the calorific value benefit produced again smaller than on an equal basis
Under the conditions of sludge manure price, it is possible to bring more economic benefit for enterprise；Although and conventional incineration technique energy
Enough utilize the combustion heat value of mud, but the waste gas produced and dust can cause new environmental pollution.
Claims (6)
1. a cyanophyceae and the method for excess sludge mixed dehydration pelletize composting, it is characterised in that:
1), the cyanophyceae of moisture content 95%-98% and the excess sludge after sludge concentration tank gravitational settling are mixed according to mass ratio 1/100-1/5；
2), cyanophyceae and mud mixture being sent into stirring pool, add the flocculant that dry solid mass ratio is 1 ‰-8 ‰, quickly stir, mixing time is 5-60s, is then fed into filter press, obtains the mud cake that moisture content is 70-80% after dehydration；
3), mud cake is transported to stockyard by conveyer belt, utilizes solar temperature rising to heat mud, and realize sludge drying further by force ventilation measure；
4), mud after mummification being sent into mud granulizing equipment, making particle diameter is 2-4 mm granule, and moisture content is 5%-15%.
Method the most according to claim 1, it is characterised in that: described cyanophyceae is that moisture content reaches the algae slurry of 95%-98% through collecting and simple dehydration process；Described excess sludge refers to that the excess sludge that traditional activated sludge process produces processes through concentrating and precipitating, and moisture content reaches 95%-98%.
Method the most according to claim 1, it is characterised in that: described cyanophyceae and excess sludge mix according to mass ratio 1/100-1/5；It is described that to add flocculant according to dry solid mass ratio be 1 ‰-8 ‰；The described flocculant that adds is PAMC.
Method the most according to claim 1, it is characterized in that: the stirring reaction of described flocculant refers to that utilizing mechanical agitation to realize algae mud mixes with the quick of flocculant, incorporation time controls at 5-60s, and filter press is the conventional pressure filter that excess sludge of municipal sewage plant is disposed.
Method the most according to claim 1, it is characterized in that: described utilize solar energy drying and air blast measure to realize sludge drying further to refer to be positioned over stockyard through the mud of filter-press dehydration, and use solar energy heating and venting practice to accelerate the drying process of mud.
Method the most according to claim 1, it is characterised in that: the described mud cake through drying and other treatment sends into mud granulizing equipment, and making particle diameter is 2-4mm organic granular, and moisture content is 5%-15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320146.3A CN105800892A (en) | 2016-05-13 | 2016-05-13 | Blue-green algae and excess sludge resourceful treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610320146.3A CN105800892A (en) | 2016-05-13 | 2016-05-13 | Blue-green algae and excess sludge resourceful treatment method |
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| CN201610320146.3A Pending CN105800892A (en) | 2016-05-13 | 2016-05-13 | Blue-green algae and excess sludge resourceful treatment method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108439743A (en) * | 2018-05-22 | 2018-08-24 | 镇江市水业总公司 | Biogas residue deep dehydration and the method for desiccation after a kind of anaerobic digestion |
| CN109422439A (en) * | 2017-08-24 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of high sulfur Gas Fields sludge treatment technique |
| CN110092563A (en) * | 2019-04-16 | 2019-08-06 | 无锡市政设计研究院有限公司 | A kind of method that cyanobacteria algal gel cooperates with deep dehydration with municipal sludge |
| CN110342779A (en) * | 2019-06-21 | 2019-10-18 | 无锡国联环保科技股份有限公司 | A kind of integrated approach of sludge and algal gel collaboration processing |
| CN111747631A (en) * | 2020-07-14 | 2020-10-09 | 江南大学 | Method for promoting rapid dehydration of blue algae mud and preparing rod-shaped charcoal |
| CN111804273A (en) * | 2020-06-24 | 2020-10-23 | 安徽百和环保科技有限公司 | Regenerated adsorption material and preparation method thereof |
| CN113149400A (en) * | 2021-03-31 | 2021-07-23 | 江苏赛恩工程技术有限公司 | Preparation process of heat-insulating external wall tile |
| CN113603333A (en) * | 2021-08-11 | 2021-11-05 | 江苏霖生生态环境科技有限公司 | Biochar-based material mediated cyanobacteria mud deep drying equipment, process technology and process |
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| CN102161557A (en) * | 2011-03-10 | 2011-08-24 | 北京科技大学 | Method for treating excess sludge |
| CN102183027A (en) * | 2011-03-10 | 2011-09-14 | 北京科技大学 | Treatment method of high calorific value excess sludge |
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| CN104986896A (en) * | 2015-07-16 | 2015-10-21 | 江苏金山环保科技股份有限公司 | Blue-green algae processing system |
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Patent Citations (6)
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| JPH07215786A (en) * | 1994-02-03 | 1995-08-15 | Asuka Kisen Kk | Treatment of dredging sludge and cleaning method of static water system |
| WO2004032976A2 (en) * | 2002-10-08 | 2004-04-22 | Econova Ab | Process for conversion of biomass |
| CN102161557A (en) * | 2011-03-10 | 2011-08-24 | 北京科技大学 | Method for treating excess sludge |
| CN102183027A (en) * | 2011-03-10 | 2011-09-14 | 北京科技大学 | Treatment method of high calorific value excess sludge |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109422439A (en) * | 2017-08-24 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of high sulfur Gas Fields sludge treatment technique |
| CN108439743A (en) * | 2018-05-22 | 2018-08-24 | 镇江市水业总公司 | Biogas residue deep dehydration and the method for desiccation after a kind of anaerobic digestion |
| CN110092563A (en) * | 2019-04-16 | 2019-08-06 | 无锡市政设计研究院有限公司 | A kind of method that cyanobacteria algal gel cooperates with deep dehydration with municipal sludge |
| CN110342779A (en) * | 2019-06-21 | 2019-10-18 | 无锡国联环保科技股份有限公司 | A kind of integrated approach of sludge and algal gel collaboration processing |
| CN111804273A (en) * | 2020-06-24 | 2020-10-23 | 安徽百和环保科技有限公司 | Regenerated adsorption material and preparation method thereof |
| CN111747631A (en) * | 2020-07-14 | 2020-10-09 | 江南大学 | Method for promoting rapid dehydration of blue algae mud and preparing rod-shaped charcoal |
| CN113149400A (en) * | 2021-03-31 | 2021-07-23 | 江苏赛恩工程技术有限公司 | Preparation process of heat-insulating external wall tile |
| CN113149400B (en) * | 2021-03-31 | 2022-03-08 | 江苏赛恩工程技术有限公司 | Preparation process of heat-insulating external wall tile |
| CN113603333A (en) * | 2021-08-11 | 2021-11-05 | 江苏霖生生态环境科技有限公司 | Biochar-based material mediated cyanobacteria mud deep drying equipment, process technology and process |
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Application publication date: 20160727 |