Delivery and Installation of Aerobic Waste Processing Technology for the Composting Plant in Bieruń

Delivery and installation of aerobic waste processing technology in a membrane system for the composting plant in Bieruń: training for a maximum of 10 personnel, technological startup of the equipment. The system is based on semi-permeable membranes, positive aeration, and a control system, equipped with closed bioreactors (BAT compliant) and membrane cover. It is intended for composting all biodegradable/organic waste, including sewage sludge and biowaste (green, kitchen). The system must be capable of hygienization (within a maximum of 15 days of composting) and organic stabilization processes, operating without waste bed irrigation and with channels for process leachate drainage. Composting duration is a maximum of 50 days, comprising at least two phases (minimum 20 days, maximum 25 days each), with the waste turned once after the first three weeks. Mass loss is a minimum of 15% of the input material. The system must allow mixing of composted waste with structural material (wood chips 40-120 mm, shredded branches) in a 1:1 mass ratio. After the process under the membranes, the compost mixture is to be screened on a sieve with a mesh size of 15-25 mm. The undersize fraction is finished compost, the oversize fraction is reusable as structural material (recovery a minimum of 70%). The resulting compost must be marketable. The contractor must personally perform the installation of membranes and automation (probes, computer set), the startup, and personnel training; reliance on third-party resources for these key tasks is excluded.

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