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Cyanobacteria dewatering and composting treatment method

A treatment method and composting technology, applied in dehydration/drying/concentrated sludge treatment, water/sludge/sewage treatment, sludge treatment, etc., can solve problems such as secondary pollution, high water content of cyanobacteria, and unfavorable follow-up disposal , to achieve the effect of reducing transportation costs, high degree of automation, and improving resource utilization

Inactive Publication Date: 2016-12-21
PENYAO ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the cyanobacteria salvaged from open (ground) water sources has a high water content, which is not conducive to subsequent disposal, and the secondary pollution caused by the addition of agents such as conditioning and flocculation during the physical dehydration process, and proposes a cyanobacteria dehydration compost Approach

Method used

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  • Cyanobacteria dewatering and composting treatment method

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Embodiment 1

[0019] Embodiment 1: A kind of blue-green algae dehydration composting processing method, comprises the following steps: the blue-green algae collected salvage is centrifuged and dehydrated and then dehydrated with an electroosmotic dehydration device, and then the algae mud is mixed with the engineering composite functional bacterial agent for composting, and the thickness of the composting is 20~30cm, aeration pipes are inserted in the compost mixing pile, the pH value of the decomposed cyanobacteria compost is 8.05, the organic matter content is 32.62%, the total nitrogen content is 1.59%, the total phosphorus (P2O5) content is 0.99%, the total The content of potassium (K2O) is 1.5%, and the content of total nutrients (nitrogen + phosphorus pentoxide + potassium oxide) reaches 4%. Centrifugal dehydration uses a centrifuge for the first step of dehydration, and the moisture content drops from 95%-99% to about 85%. The engineering compound functional bacterial agent includes ...

Embodiment 2

[0021] Example 2: Reference Example 1: The engineered compound functional bacterial agent includes 2% by mass of the engineered compound functional bacterial species, and the rest is culture medium. Engineering compound functional strains include, in terms of mass percentage: 10% Bacillus subtilis (AJ276351), 15% Thermosaccharococcus thermophiles (X70430), 5% high-temperature lignin-degrading bacteria (AF067651), 14% Thermoglucosidase soil spores Bacillus (AY608981), 13% Denitrophilic Bacillus (AY608961), 15% Geobacillus stearothermophilus (AB271757), 8% Geobacillus (AJ564616), 10% YMO81 (AB250968), 5% YMO722 (AB308475 ), 5% high temperature actinomycetes (AB088361).

Embodiment 3

[0022] Example 3, with reference to Example 1, the engineered compound functional bacterial agent includes 0.5% by mass of the engineered compound functional bacterial strain, and the rest is a culture medium. The engineering compound functional strains include, by mass percentage: 5% Bacillus subtilis (AJ276351), 20% Thermosaccharococcus thermophiles (X70430), 5% high-temperature lignin-degrading bacteria (AF067651), 17% thermoglucosidase soil spores Bacillus (AY608981), 7% Denitrophilic Bacillus (AY608961), 21% Geobacillus stearothermophilus (AB271757), 18% Geobacillus (AJ564616), 5% YMO722 (AB308475), 2% high temperature ray bacteria (AB088361).

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Abstract

The invention provides a cyanobacteria dewatering and composting treatment method. The method is characterized in that according to the open (ground) water source cyanobacterial bloom pollution problem, fished and collected cyanobacteria is dewatered through an electroosmotic dewatering device after centrifugal dewatering, and the water content of the dewatered cyanobacteria can reach 60% or below; then yanobacteria mud and engineering compound functional fungicide are mixed according to a certain proportion for composting, and fermentation temperature can reach 105 DEG C at most. The decomposed cyanobacteria compost meets the requirements of agricultural industry standards-organic fertilizer of the People's Republic of China (NY525-2002). The method is a novel cyanobacteria treatment method, has the advantages of being easy to operate, low in operation cost and environmentally friendly, and provides a way out for open (ground) water source alga bloom pollution treatment.

Description

technical field [0001] The invention relates to the field of dehydration treatment of open (ground) water source algae, in particular to a method for dehydration treatment of cyanobacteria. Background technique [0002] Algae are the most widely distributed and one of the organisms with the strongest tolerance. Whether it is in the extreme cold environment of the polar regions, in water bodies that are close to boiling, or in saline lakes that are far more salty than seawater, algae can grow. It can survive even in the desert. In lakes and rivers, algae thrive on sewage. [0003] With the rapid economic development and excessive population growth in my country, various nutrients produced by human activities flow into the water body, which leads to the continuous acceleration of the eutrophication process in lakes, rivers and coastal waters, destroying the ecological balance of the water body, and resulting in increasingly serious eutrophication. The demineralized water body...

Claims

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Application Information

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IPC IPC(8): C05F11/00C05F17/00C02F11/12
CPCC02F11/006C02F11/127C05F11/00C05F17/00C05F11/08Y02W30/40
Inventor 王洪春周国亚王耀元李贺房耀平吴刘盛
Owner PENYAO ENVIRONMENTAL PROTECTION
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