Membrane-covered Aerobic Fermentation System
Characteristics of membrane covered aerobic fermentation system
Membrane covered aerobic fermentation is an improved static strip composting technology. The aerobic fermentation process is carried out in an environment covered by functional membranes (semi permeable flexible composite membranes), controlling the exchange of substances and energy between the material pile and the surrounding environment, so that the concentration of pollutants (odors, aerosols) emitted from the material pile is below the specified limit. The membrane covering system using intelligent control technology can achieve a high organic matter degradation rate and has comprehensive prevention and control functions for climate, aerosols, and odors, suitable for various climate conditions and geographical locations.
The membrane covered aerobic fermentation system mainly consists of three aspects: membrane, ventilation, and control, which are significantly different from other aerobic fermentation systems. The three complement each other to form a unique, economical, and effective high-temperature aerobic fermentation system.
embrane
The core of the membrane covered system is a composite membrane placed on top of the waste material pile, which is composed of a specially designed e-PTEF (expanded polytetrafluoroethylene) membrane and functional membrane, and has functions such as rain resistance, breathability, insulation, and odor prevention. Sealing organic waste through high-temperature aerobic fermentation with composite film can shield it from wind and rain, avoiding the impact of harsh weather conditions, while also allowing the CO2 gas and water vapor generated during the treatment process to be discharged.
Ventilation
In order to meet the basic oxygen demand of aerobic microorganisms, a ventilation fan is used to blow air into the ventilation ditch. The covering film has a pressure boosting effect, making the air distribution more uniform, enhancing the penetration of air flow, and reducing the required ventilation volume. Generally, a fan is used to ventilate and supply oxygen to a material pile. The larger the processing capacity, the more economical the ventilation and air distribution system.
Control
The control system controls the ventilation volume and ventilation time based on the oxygen concentration and fermentation temperature in the material pile. Oxygen concentration and material temperature information are measured by inserting stainless steel probes into the material pile. The data is transmitted to the computer in a timely manner to reflect the processing process and recorded in the file. The processing can be remotely controlled.
Process diagram of membrane covered aerobic fermentation system
Application scope:
Various organic solid wastes such as household sludge, garden waste, kitchen waste, agricultural waste, livestock and poultry manure, stale garbage, distiller's grains, and food enterprise fertilizers.
5、 Whole industry chain system
We are a system integration and solution provider, providing services including research and development, design, engineering construction, after-sales service, etc.
Advantages: Unified collaboration, high efficiency, and reduced customer costs.
Various organic solid wastes such as household sludge, garden waste, kitchen waste, agricultural waste, livestock and poultry manure, stale garbage, distiller's grains, and food enterprise fertilizers.
5、 Whole industry chain system
We are a system integration and solution provider, providing services including research and development, design, engineering construction, after-sales service, etc.
Advantages: Unified collaboration, high efficiency, and reduced customer costs.