The prototype installed and operated in Cádiz (Spain) consisted of two main equipments: a nitrification bioreactor, fed by landfill leachate, and an anoxic bioscrubber fed by the effluent from the nitrification bioreactor and the biogas from the landfill wells.

The main objective of this prototype operation was to gather information for the optimisation of the technology, the search of the technology limits, as well as the definition of advanced control strategies. The prototype was operated for over 12 months in Miramundo-Los Hardales solid waste landfill and then, it was moved to a municipal solid waste management plant (MSWTP) in Athens (Greece).

The installation of the prototype allowed to show the robustness of the proposed technology allowing to obtain a by-product of interest (elemental sulfur) besides reducing of the amount of leachates generated in the landfilling process.

The Environmental Complex Miramundo-Los Hardales is a municipal solid waste landfill located in Medina Sidonia (Cádiz), which is managed and operated by Bioreciclaje de Cádiz and owned by the public body “Ente Provincial Consorcio Bahía de Cádiz”.

Currently, at the Miramundo-Los Hardales landfill no energy use from biogas is carried out, so the extracted biogas is currently burned completely in a flare. This landfill is made up of a Waste Treatment and Composting Plant and a Controlled Deposit.