Compost air injection and evacuation system with improved air co

Chemistry: molecular biology and microbiology – Micro-organism – per se ; compositions thereof; proces of...

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435287, 435313, 71 9, 261122, 261 65, C12N 100, C12M 100, C12M 104, C05F 904

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active

048371530

ABSTRACT:
The present invention provides a method and apparatus with improved fluid flow control for economical and efficient composting. The improved fluid flow control is provided by a lance having at least two separate fluid flow zones to provide a fluid flow profile in the compost. The flow zones are provided by an outer porous wall tube with a control insert tube therein having a plurality of openings along the length thereof and spaced from the wall by gaskets to form the flow zones. The lances can be coupled to a manifold for even fluid distribution throughout the compost. The manifold is designed to direct fluid flow to a portion of the lances while simultaneously removing fluid flow from the other portion of lances. This creates substantially uniform patterns of fluid injection and evacuation for uniform composting, reduced energy requirements and greater control of process conditions. Further, reversal of the fluid flow enhances control of process conditions and adds an automatic self cleaning aspect to the apparatus.

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