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Method for making biofuel from biological sludge

A biological sludge and biomass technology, applied in the direction of fuel, sludge treatment, solid fuel, etc., can solve the problem of unmade biomass fuel

Active Publication Date: 2019-09-27
林知谚
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Problems solved by technology

[0004] However, regarding the above-mentioned method of making fuel, in addition to additionally adding wood, sawdust, rice straw, or straw and other resources that can be used for other purposes, there is currently no way to use the above-mentioned biological sludge. An effective method for processing the biological sludge to make biofuel

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] refer to figure 1 , is an embodiment of the method for making biofuel from biological sludge of the present invention, which embodiment includes a lysis step 11, a filter press step 12, a drying step 13, an abrasive step 14, and a mixing step 15.

[0023] refer to figure 1 and figure 2 , the lysis step 11 is to use ozone and water power to destroy the cell walls of microorganisms contained in a biological sludge in a confined space 21, so as to change the physical and chemical characteristics of the biological sludge. After the biological sludge is refined by means of hydraulic circulation oscillation, the biological sludge can be refined into fine particles with a particle size of 0.3 mm to 0.6 mm, which greatly increases the specific surface area. Then, in a contact space 22, it is mixed and contacted with ozone inhaled under negative pre...

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Abstract

The invention discloses a method for preparing biomass fuel from biological sludge. The method comprises the following steps: a cell lysing step, a pressure filtering step, a drying step, a grinding step and a mixing step. The cell lysing step is that the synergistic effect of hydraulic oscillation and ozone oxidation is utilized to destroy the cell walls of the microorganisms contained in the biological sludge, so as to change the physical and chemical properties of the biological sludge; the pressure filtering step is that the solid-liquid separation is performed on the biological sludge in a pressure filtration manner; the drying step is that the separated solid is dried to form a dried substance; the grinding step is that the dried substance is ground into a fine material; the mixing step is that the fine material is mixed with oil sludge to prepare the biomass fuel. The biomass fuel can be used for combustion to generate heat energy, meanwhile the environment-friendly idea of waste reutilization is realized while the sludge reduction is carried out.

Description

technical field [0001] The invention relates to a method for producing fuel, in particular to a method for producing biomass fuel from biological sludge. Background technique [0002] Biological sludge is the solid waste produced by the biological treatment unit of the (waste) sewage treatment system. The main components of the biological sludge are: active microbial populations, residual substances of microbial metabolism, and organic substances carried by sewage , and inorganic substances carried by sewage. Therefore, if it is desired to process the biological sludge to form reusable resources, it is necessary to eliminate the possible impact of the microorganisms so that the products made from the recovered biological sludge can be safely used. [0003] At present, the existing waste treatment technology is usually to make specific treatment of waste into fertilizer, building materials, fuel, or artificial soil and other products that can be used later. Among them, in t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/46C02F11/06C02F11/122C02F11/13
Inventor 林长青
Owner 林知谚
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