Product Description: This title includes a number of Open Access chapters. The activated sludge process is one of the most versatile and commonly used wastewater treatment systems in the world. In the past, when industrial wastewater treatment focused on removing biological oxygen demand and suspended solids, waste water plants needed different processes and technology...read more

Product Description: This work presents the latest research findings in sleep and respiration in aging adults. It covers such topics as neurologic aspects of aging, sleep changes in the elderly, medications and sleep in the elderly, changes in the respiratory system in aging, epidemiology of sleep disordered breathing, and pharyngeal size and function in the elderly...read more