This book examines research in the field of biotechnology, as well as very important problems for ecology in the big cities. The book also places special emphasis on certain problems such as the influence of humous components in the soil on the reaction kinetics of remediation, heavy metal analysis of soil based on fuzzy logic system, and bio-resistant building composites on the basis of glass wastes. Additional topics discussed include the simulation of a biological degradation, biological corrosion of pipe-line materials, the role of polymorphism of endothelial no-synthas in development of atopic dermatitis and formation of the "atopic marsh" among children, and the transformation of nitrogen and phosphorus compounds during biological treatment at the Minsk treatment plant.