“Local Production for Local Consumption” of Sludge
In 1996, ahead of all others, AMCON launched Dell Compo, a small footprint, low-cost, high-performance sludge fermentation system.
This system includes all necessary equipment such as a sludge dewatering press, dryer, and fermentation tank into a single unit, and is complete sludge treatment facility for small municipal WWTPs with a limited space.
Sludge that was once disposed as industrial waste for some costs is now utilized as compost*; and sludge disposal cost is eliminated. Since its launch, many small-scale municipal wastewater treatment plants have installed Dell Compo and realized “local production for local consumption of sludge.”
*To use fermented sludge as compost, registration with a local municipality is required.
Compost effectiveness of fermented sludge
Fermented sludge can be utilized as fertilizer or soil conditioner in agricultural land and green areas.
Conditioning of soil
Provided with organic material, structure of soil turns crumb and can be suitably conditioned with air or moisture. Consequently, the soil softens and root elongation will be less interrupted.
In addition, the ion-exchangeability of organic material gives soil chemical properties that make it suitable for plant growth such as hardness of active ingredients washout, buffer action of pH; and thus produce stable soil.
Utility of slow acting nutrients
Ingredients from the organic material of fermented sludge dissolve gradually in the soil, therefore, nutrients can be supplied to the soil effectively.
Reduction of soil diseases
Effective micro-organisms in fermented sludge suppress the generation of disease insects or germs.
Fermented sludge that is hygienic and easy to handle
Fermentation at high temperatures of approximately 70 degrees Celsius kills parasites and harmful microorganisms, resulting in a hygienic form of fermented sludge.
In addition, fermented sludge is discharged in pelleted form, so it can be handled easily without scattering dust.
Since the sludge is stored as stable fermented sludge, unlike the storage of dewatered cake with high moisture content, odors and mold do not arise easily, and the plant can be maintained hygienically.