Cyanobacteria dehydrated algal mud waste treatment process

A technology for waste treatment and algal mud, which is applied in radiation treatment, biological organic part treatment, heating/cooling of fertilizer treatment, etc., can solve the problems of long treatment time, large odor, ecological environment damage, etc., and achieve the effect of improving efficiency

Pending Publication Date: 2020-11-27
无锡东方船研水环境科技有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, about 1.5 million tons of algae mud (with a moisture content of 85% to 90%) produced through the separation of algae and water in the process of cyanobacteria treatment in my country will cause great harm to the ecological environment if not properly disposed of.
At present, the large-scale disposal technologies for algae mud mainly include cyanobacteria algae mud fermentation and composting, cyanobacteria algae mud and municipal sludge collaborative deep dehydration, drying incine

Method used

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  • Cyanobacteria dehydrated algal mud waste treatment process
  • Cyanobacteria dehydrated algal mud waste treatment process

Examples

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Example Embodiment

[0022] The specific implementation of this embodiment will be described below with reference to the drawings.

[0023] Such as figure 1 As shown, the cyanobacteria dehydrated algal mud waste treatment process of this embodiment includes the following steps:

[0024] 1) Ultra-high pressure deep filter press: without adding any conditioning agent in the algae mud, it is directly sent to the vertical filter press for filtration operation. The pressure range of the vertical filter press is 5MPa~10MPa, which reduces the content of the algae mud. Water content, remove 50%-60% of the moisture in the algae mud, make the moisture content of the algae mud cake after pressure filtration in the range of 70% to 75%, and reduce the weight of the algae mud cake to the original 40%-50%. The filtered tail water is sent to the water treatment equipment for treatment and discharge after reaching the standard;

[0025] 2) Sterilization and drying; the press-filtered algae mud cake is sent to the integ...

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Abstract

The invention relates to a cyanobacteria dehydrated algal mud waste treatment process. The process comprises the following steps: 1) ultrahigh-pressure deep filter pressing is carried out; 2) sterilizing and drying are carried out; 3) a blue algae granular fertilizer is produced, no conditioner is added, and the blue algae granular fertilizer can be produced after dehydration, sterilization and disinfection, so that harmless treatment and resource utilization of the blue algae mud are realized, and the blue algae granular fertilizer prepared from the blue algae mud is low in water content, remarkable in volume reduction effect, low in process energy consumption and high in sterilization and drying efficiency.

Description

technical field [0001] The invention relates to a cyanobacteria treatment process, in particular to a cyanobacteria dehydrated algae mud waste treatment process. Background technique [0002] For the treatment of cyanobacteria blooms in rivers, lakes, reservoirs and other water bodies, horizontal screw centrifuges, belt filter presses, screw stackers and other machines are generally used to separate algae water and the tail water after the algae water separation is passed through the air Floating treatment, standard discharge, but the algae sludge produced after the separation of algae water must be treated in a harmless manner. [0003] The algae mud produced after the separation of algae water is a paste-like organic mud made of blue-green algae as the main species. It is characterized by high water content (85%-90%) and high organic matter content in dry matter (95%-100%) , and contains algae toxins, which are particularly prone to corruption and odor. [0004] At prese...

Claims

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Application Information

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IPC IPC(8): C05F11/00C05G5/12C05F17/60C05F17/30
CPCC05F11/00C05F17/30C05F17/60C05G5/12Y02W30/40Y02P20/129
Inventor 罗荣彪徐佳良倪守高杨栋吴玲玲霍雷徐惠南董鑫成
Owner 无锡东方船研水环境科技有限公司
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