Processing of organic waste material uses an assembly of modules with a mobile processing container as a bio select percolator to reduce it to a substrate for further processing or deposit at a dump

摘要

The processing of organic material and especially biogenic waste, with a high solid content and also hazardous matter, is a mechanical and biological action with a combined drying and fermentation operation. A modular assembly is used, to give the process stages of initial aeration, anaerobic fermentation, water removal and drying within a mobile processing container as a bio select percolator (BSP). The container has all the energy and supply facilities for a BSP action. The BSP is a 20 inches container with transport hooks, a system for active water extraction (2) and suction ventilation, perforated side walls and base for a passive water extraction, and a pressure ventilation system. The modular assembly to supply the BSP has a holding zone for the BSP capsules, for a single and combined aerobic and anaerobic processing, and for composting or biogenic drying. It has a compressor station, suction fans and a biofilter, a process water unit for storage and anaerobic fermentation. The sorted waste fraction, <= 150 mm, is used to fill the BSP, to be connected to the suction ventilation and heated to a temp. of /> 60 deg C. For a combined aerobic and anaerobic processing (4), the heated and filled (1) BSP is inserted into a hermetically sealed capsule, or it is placed in the capsule to be heated and treated with heated process water through an integrated jet system from an external module (6) which handles the process water supply and preparation. The waste, at rest with the BSP, is loosened and mixed through during the percolation stage, using cutting jets with air or an inert or bio gas in pressure pulses. The gas exhaust (7) is accelerated, and the bacteria are constantly presented with new degrading surfaces. The fermentation stage is accelerated, to yield the maximum possible organic content from the solid matter, so that the capsule dwell time is reduced. The percolation water, on leaving the BSP, is passed to the process water preparation module, with the carbon from the waste. The assemblies for the suction ventilation and the pressure pulse mixing at the BSP are linked by snap couplings (5) to the working components of the system. The waste remaining in the BSP is carried off for further processing, or deposit at a waste dump.