Waste from the environment segment

[GRI - 103-3], [GRI - 306-1], [GRI - 306-2], [GRI - 306-3], [GRI - 306-4], [GRI - 306-5],

Consolidated report

Waste streams in the Environment sector are extremely diverse due to the range of types of plants and the broad spectrum of services provided by the Companies. Business activities can be grouped in the four macro categories: waste-to-energy, composting, treatment of liquid and solid waste and brokerage/transport. Below are details for the first three, while transport and brokerage are handled under Waste-to-energy, composting, disposal of solid and liquid waste and related services in the Environment Segment section. Waste-to-energy activity, with the plants of San Vittore del Lazio and Terni, produces the greatest quantity of waste, totalling 93,821 t in 2022. The majority of waste produced by these plants is flyash, bottom-ash and water from the buer tank217. In 2022, 52,782 tonnes of ash were recovered (approximately 83% of the total). The Orvieto hub, the Deco sites and the composting plants (Aprilia and Monterotondo Marittimo) produce leachate as their primary waste in terms of quantity, derived from stabilisation of waste and primarily sent for disposal (93%). As an example, streams of treatment, disposal and recovery for waste-to-energy and composting sites are illustrated in Chart no. 59. The treatment plants handling liquid waste of the Companies Acque Industriali, Berg and the plant of Bio Ecologia218, which primarily produce sludge.

Chart no. 59 – Main waste streams in the Environment Segment (waste-to-energy and compost sites)

Main waste streams in the Environment Segment

Table no. 72 – Waste produced by companies in the Environment Segment (2020-2022)

Environment Segment waste 2020 2021 2022
  t    
total waste 151,966 173,674 190,038
hazardous 69,560 71,038 70,098
of which ash 59,435 59,142 63,645
non-hazardous 82,407 102,636 119,940
of which liquid waste (leachate and buer water) 51,426 57,669 61,702
detail by type of processing
entirely recovered waste 46,570 46,033 60,414
of which ash 42,584 43,425 52,782
entirely disposed of waste (*) 105,396 122,129 129,624
of which ash 16,852 15,717 10,863
of which sent to landfill and subject to other disposal operations 104,098 122,129 125,348

217 Water from buer tanks or “water for technical purposes”, refers to liquid solutions used as a buffer for acidic components that develop during combustion of waste.
218 The waste from the Bio Ecologia plant derive both from treatment of liquid waste and treatment of wastewater.

Share