Mobile soil washing system

The region of Lazio, Determination no. 2715 of 7/27/2007, published in the Official Journal of the region of 10/30/2007, has authorized Ecotec Risorse srl to perform treatment and recovery operations of hazardous and non-hazardous waste, using a mobile soil washing system.

The authorization has been granted pursuant to article 208, paragraph 15, of the Legislative Decree 152/2006 and allows the company to treat a maximum 128,000 tonnes of material per year.

Ecotec Gestione Acque srl has obtained permission to operate mobile soil washing system for treatment and recovery operations of hazardous and non-hazardous waste (determination no. 70 of June 23, 2014 Executive ecology and protection of the civil province of Cagliari).

The authorization has been granted pursuant to article 208, paragraph 15, of the Legislative Decree 152/2006 and allows the company to treat a maximum 560,640 tonnes of material per year.

The purpose of working with the mobile soil washing system is to perform soil washing, "sweeping" of pollutants and the finest granules of material as much as possible.

The smallest particles, less than about 70 μm, swept away by the water flow, are densified in two subsequent stages, the first being natural sedimentation and the second mechanical pressing.

The maximum capacity of the mobile soil washing system is about 120 t/h of input material (with a 15% of silt-clay).

The mobile soil washing system consists of the following main modules: Grinding module (optional) - Material feeder, pre-screening, screening on a flat washed vibrating screen, coarse fraction washing, washed material transfer to the final homogenizer - Clarification of the recirculation water with silt/clay thickening, sludge and accumulation extraction, formation of clean water reserves for washing recirculation - sludge cleaning with mechanical pressing.

The authorizations for the operation of mobile soil washing treatment systems covers all types of waste treated by the system.

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