Environmental remediation and historical natural valorisation are the drivers of our site strategy.

Assemini, a best practice of remediation and historical natural valorisation

Assemini's story began in the 1960s when the site on the outskirts of Cagliari was chosen as part of the Sardinia Revival Plan to regenerate the economy in the south of the island. Petrochemical activities were launched with eight integrated companies operating in inorganic and organic chemicals, these were later merged into Rumianca Sud and then SIR. In this context, the adjacent salt pans provided salt for the chlorine-dichlorethane industry. Eni (in particular, Enichem) took over the plant in the early 1980s, as part of the government's industrial rescue operation; among the transferred assets was the Ing. Luigi Conti Vecchi company, along with the concession of the salt pans. Enichem started a regeneration process which peaked in 1986 with the introduction of a more sustainable membrane technology, which replaced the previous mercury-based one, for caustic soda production. The Assemini site, which integrated the chlorine, vinyl chlorine and polyvinylchlorine supply chain, was downsized to only include caustic soda and dichlorethane production. Afterwards Syndial (renaming of Enichem, now Eni Rewind), following Ineos’s exit from the Italian market, Safi’s Group acquisition and the subsequent commissioner management, in 2013 halted the dichlorethane plant and at the same time launched a productive requalification plan involving salt and caustic soda production through the controlled Ing. Luigi Conti Vecchi company. In 2021, Eni Rewind transferred to Società Chimica Assemini the caustic soda assets, as well as the water treatment and recovery plants in 2023. Italkali, as operator in the salt industry, acquired the shares of ILCV in 2022, taking over the management of the Conti Vecchi salt pans. 

Our activities in Assemini

Environmental remediation activities in Assemini, which is part of the Sulcis Iglesiente Guspinese Site of National Priority identified in 2001, cover the areas known as: “Plants”, “Island 5”, “External”, “former Rumianca landfill” and “Coastal Deposit”, as well as the Is Campus area owned by the CACIP Consortium. The company is also carrying out remediation activities in the Radice Pontile area which is under municipal jurisdiction. As regards to the aquifer, Eni Rewind manages the groundwater remediation in different ways for each area, taking the specific nature of the contaminants into account. In the site there are a number of pump and treat and groundwater extraction systems, both on- and off-site, as well as a groundwater treatment plant with a capacity of 180 m3/h.


Our regeneration projects

Our main challenge is to breathe new life into local territories.