Research and Pedagogical Activities
Professor devoted most of his life to teaching and research. He trained water supply engineers. All professional activities of B. Petrulis were related to the University (reorganised into KPI at the end of 1950). Here he worked in various positions, from assistant to professor. From 1945 to 1948, he was Head of the Department of Land Reclamation, in 1949, he was Vice-Dean of the Faculty of Construction, from 1954 to 1956, he was the Vice-Dean of the Faculty of Hydraulic Engineering, and from 1956 to 1961, he was the Head of the Department of Water Supply and Plumbing (since 1988 – Engineering Ecology). In 1954, he defended his dissertation “Hydrogeological Conditions of Kaunas City and Their Rational Use” and was awarded the degree of doctor of technical sciences. In addition to lecturing, establishing laboratories, supervising practical and laboratory work, courses and diploma projects, he conducted over 90 research projects, published dozens of articles in the press, and prepared 7 academic methodological tools. He wrote books and textbooks: “Water Supply and Plumbing in Settlements” (with S. Vabalevičius, 1962), “Handbook of Utilities and Road Management” (et al., 1964), “Plumbing Equipment in Buildings” (with Vytautas Burbulis and S. Vabalevičius, 1965), “Water Clarification in Water Supply Systems of Urban and Industrial Enterprises” (with A. Sakalauskas, 1976), “Water Supply” (et al., 1982), and prepared educational tools.
In addition to academic teaching, he worked on various land reclamation, hydrogeology and water management projects. At his advanced age, the professor was actively involved in the activities of the University and the Department, consulting young scientists and reviewing their work. Almost all Lithuanian water management engineers (about 1500) are his pupils.