Types and components of solid wastes, collection and transport, treatment and disposal methods of solid wastes, study and design of bio-treatment methods as compost systems, application of cleaner production and waste minimization through integrated solid waste management including recycling and reuse, elements design of municipal landfills and other treatment systems as incineration, and temporal storage of hazardous waste, managerial aspects and socio-cultural and economical issues of various solid waste types, economical comparison and analysis of various technologies for solids waste treatment, technical field visits for some local landfill sites, rural composting and recycling facilities aiming at composting site erection and lab monitoring of the composting processes.