Salvatore (Turi) Grasso, graduated in engineering at the Polytechnic of Turin, where he was assistant and researcher in Seismic and Construction Science for two years, he has published texts and research in the two sectors mentioned. Among his contributions as a researcher in seismic is the paper Costruzioni industrializzate in zona sismica, in which a new calculation methodology for buildings with load-bearing walls in reinforced concrete was proposed. This work was presented at the National Seismic Conference held in Florence on 30-31 October 1972 and subsequently published in issue no. 5 of the journal Prefabbricare edilizia in evoluzione of 1973.

In the early years of his professional career, he collaborated with one of the most important Italian engineering firms, gaining experience in the design of bridges, viaducts, industrial warehouses and other civil works. Designer and construction manager for numerous interventions, he is also an urban planner and author of the four-volume work L'Urbanistica in Sicilia. He was an external technical-legal consultant of the Public Works Commission of the Department of Infrastructure and Mobility of the Sicilian Region from 2015 to 2018 and subsequently from 2019 to January 2023.

He is the founder and president of AISI-Sicilia, formerly the Italian section of the Society for International Development (SID), an organization founded in Washington with the support of the United Nations. After the transformation of the association into "AISI Sicily – Mediterranean for Peace", he promoted and participated in national and international meetings, especially in the Mediterranean area, intervening on issues related to peace and human rights.

In November 2001 he organized and chaired an important interreligious meeting on the three great monotheistic religions, with the participation of Roberto Savio, Secretary General of the SID, and representatives of the religious, political and social world of 16 countries. On that occasion he awarded an award to high personalities committed to the promotion of peace, such as the publisher Mahmoud Habassi, a Palestinian Muslim, the writer Sami Michael, an Israeli Jew and the Catholic Member of the Italian Parliament Enzo Trantino.

Among the many important events in which he has participated is the Sommet Mondial sur la Société de l'Information (SMSI), held in Tunis in November 2005, organized by the General Assembly of the United Nations, with the participation of the Secretary-General Kofi Annan. On that occasion he presented a speech entitled Information technology: a synergistic means for Mediterranean peace.

On March 20, 2016, on the occasion of the 60th anniversary of Tunisia's independence (1956–2016), he received a plaque in Palermo for his commitment to promoting peace in "Muslim, Jewish and Christian Tunisia. Home to all those who respect and protect it". The award, conferred by the Consul General of Tunisia Fahrat Ben Souissi, was presented to him by the Mayor of Palermo.

In Lions Clubs International he has promoted and organized important international events for peace. He conceived, organized and concluded the twinning between the Lions District of Sicily and the Lions Districts of Algeria, Morocco and with the Lions Clubs of the United Arab Emirates. In addition, it has contributed to the revitalization of the twinning between the Lions Districts of Sicily and Tunisia.

Among the numerous awards he has received, the prestigious International President's Leadership Medal stands out, conferred on him in 2021 by the International President of Lions Clubs International, Dr. Jung-Yul Choi, for being a "fundamental trait-d'union between Italian Lionism and that of the Arab Maghreb and the Middle East".

Since July 9, 2024, the United Nations University for Peace (UPEACE), based in San José, Costa Rica, has officially adopted the hymn Pace, Shalom e Salam, of which Grasso is the author of the lyrics and melody. The world premiere, for large orchestra, choir and female solo voice, is scheduled in Rome on September 20, 2025, at the Basilica of the Holy Twelve Apostles, on the eve of the UN International Day of Peace.

During the 2025 Lions National Convention, the Governors of Multiple District 108-Italy awarded him the "Peace Ambassador" award, recognizing his thirty-year commitment to the promotion of peace, intercultural and interreligious dialogue, and for the numerous initiatives in favor of human rights and cooperation between the peoples of the Mediterranean and the Middle East.

His interventions are constantly aimed at promoting peace in the Mediterranean and the recognition of human rights, in particular those of women and children.