Anaerobic digestion technique
The process in which organic matter is decomposed by anaerobic bacteria under anaerobic conditions, producing methane and carbon dioxide, is known as anaerobic digestion. Since 2005, BODA has successfully developed and implemented anaerobic digestion technology for the treatment of chemical wastewater. In recent years, we have continued to invest in the treatment of urban domestic organic waste.
Anaerobic reactor:
The cycle-stirred biogas and sludge system provides excellent mixing, which enhances the utilization of methanol for carbon dioxide.
Technical features of anaerobic digestion technique:
Reduce sludge volume
Reducing the degradable organic content in sludge and decreasing its volume. Typically, sludge volume can be reduced by 1/2 to 1/3 following digestion.
Stabilize the nature of sludge
Reduce the amount of degradable and corrupting materials in sludge to stabilize the nature of sludge.
Improve the dehydration effect of sludge
Sludge has a viscous colloidal structure and is difficult to dewater before digestion. After digestion, the colloidal materials are gasified, liquefied, or decomposed, thereby facilitating the separation of moisture and solids in the sludge.
Use the methane gas generated
During the digestion process, the sludge produces methane, with useful methane accounting for about two-thirds of the total. This methane can be used as fuel for power generation, firing boilers, driving machinery, and other applications.
Eliminate stench
During the anaerobic digestion process, hydrogen sulfide dissociates to release sulfur atoms or combines with iron to form iron sulfide. Consequently, the digested sludge no longer emits any foul odor.
Improve the hygienic quality of sludge
Sludge contains numerous toxic substances, including bacteria, pathogenic microorganisms, and parasitic eggs, making it particularly unsanitary. However, the methane-producing bacteria generated during the digestion process exhibit strong antibacterial activity, capable of killing most pathogenic bacteria and other harmful microorganisms, thereby rendering the sludge sanitary.
Applications:
Pre-treatment of high-concentration organic wastewater; Urban domestic organic waste
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