ex-Macero of Plain

Clearing formerly plain plain

The excavation of excavations associated with a construction project in the province of Bologna has found ground and groundwater with abnormal organoleptic characteristics up to the depth of approx. 2.5 m from p.c. Investigations highlighted the presence of an underground basin that housed plastered land for buried waste: an ex-macero. The macerations were spread on the plains of Bologna, Ferrara, Modena and Ravenna for hemp processing since the 1500’s, disappearing rapidly after 1950 with the arrival of industrial textile products. Disused macerations have often been used as real dumps, as in the case of the debris under investigation.

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Clearing formerly plain plain

Investigations found extensive contamination that affected ca. 2,000 cubic meters of waste land buried and confined within the old bathtub tank, still integrated with walls and clay base. The main contaminants found involved heavy metals, phytopharmaceuticals, polycyclic aromatic hydrocarbons (IPA), polychlorinated biphenyls (PCBs) with concentrations not compatible with the residential area of ​​the study area.

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Clearing formerly plain plain

The remediation intervention has foreseen the removal of soil mixed with waste and contaminated water inside the ex-bathtub tank. The waste characterization carried out in accordance with UNI 10802 has allowed to separate the waste to be landfilled from the ones to be recovered and the careful examination of the CER (European Waste Code) codes, attributed on specific analytical considerations, has allowed remarkable economic and environmental savings, making the cost / benefit ratio compatible with site reclamation in just 2 months, consistent with the area’s reclamation targets.

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