This book gathers the latest advances, innovations, and applications in the field of effective methods of calculation, resource-saving technologies and advanced materials in civil and environmental engineering, as presented by leading international researchers and engineers at the XVII International Scientific Conference Current Issues of Civil and Environmental Engineering "Lviv- Kosice - Rzeszow", held in Lviv, Ukraine on September 11-13, 2019. It covers highly diverse topics, including structural shaping and optimization; aspects of structural behavior and modeling; advanced analysis methods; experimental tests and numerical simulations; design codes, in particular Eurocodes and other national and regional limit state codes; and highway and bridges engineering. It also discusses modern architectural and structural solutions; innovative materials and products; durability and maintenance; fabrication and erection; sustainability in construction; renewable energy sources; heat, gas and water supply; ventilation and air-conditioning; ecological and energy-saving technologies, modern water-purification and treatment technologies; and the protection of water ecosystems. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.

Progress in Environmental Engineering contains theoretical and experimental contributions on water purification, new concepts andmethods of wastewater treatment, and ecological problems in freshwater ecosystems. The issues dealt with in the book include: (i) Causes and control of activated sludge bulking and foaming (ii) e use of new support materials in activated sludge technology as a result of studies on wastewater treatment in a sequencing batch reactor with keramsite grains as the porous carrier in Moving Bed Sequencing Batch Biofi lm Reactors (iii) Greenhouse gas emissions from WWTPs especially mechanisms of N2O production in biological wastewater treatment under nitrifying and denitrifying conditions and strategies to mitigate N2O emissions from biological nitrogen removal systems as well as spatiotemporal variation of nitrous oxide emissions from reservoirs ( iv) Novel techniques of water protection against eutrophication and reclamation, in particular aspects of chemical methods of reclamation e.g. using lime for the inactivation of phosphate (v) A method for risk management in water distribution system operation and maintenance using Bayesian process. e proposed method makes it possible to estimate the risks associated with the possibility of partial or total loss of the ability of water supply system operation. Progress in Environmental Engineering includes unique contributions to understand selected aspects of environmental protection and proposes methods to eff ectively solve pollution problems. The book will be of interest to academia and professionals interested or involved in environmental engineering.

This book gathers the latest advances, innovations, and applications in the field of effective methods of calculation, resource-saving technologies and advanced materials in civil and environmental engineering, as presented by leading international researchers and engineers at the XVII International Scientific Conference Current Issues of Civil and Environmental Engineering "Lviv- Kosice - Rzeszow", held in Lviv, Ukraine on September 11-13, 2019. It covers highly diverse topics, including structural shaping and optimization; aspects of structural behavior and modeling; advanced analysis methods; experimental tests and numerical simulations; design codes, in particular Eurocodes and other national and regional limit state codes; and highway and bridges engineering. It also discusses modern architectural and structural solutions; innovative materials and products; durability and maintenance; fabrication and erection; sustainability in construction; renewable energy sources; heat, gas and water supply; ventilation and air-conditioning; ecological and energy-saving technologies, modern water-purification and treatment technologies; and the protection of water ecosystems. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerous exciting ideas that will spur novel research directions and foster multidisciplinary collaborations.