About the Book Cold water and ice diving can be extremely challenging and require planning, preparation, training, and safety. This book by John Heine, a scientific diving safety officer and an experienced ice diver for more than 25 years, has detailed the requirements for safe and comfortable ice diving. This book covers cold water and ice-diving environments; training; equipment; thermal protection; evaluating, preparing, and planning dives; and safety and emergency procedures. Table of Contents An Introduction to Diving: - Cold Water Diving - History of Ice Diving - Cold Water and Ice Diving Equipment Equipment for Ice Diving: - Thermal Protection for Divers - Cylinders and Valve Configurations - Regulators Safety and Emergency Procedures: - Environment Hazards - Emergency Procedures Training: - Classroom Curriculum - Confined Water Training - Dry Suit Training - Ice Diving "Open Water" Training Ice Diving Operations: - Evaluating Ice Conditions - Preparing the Site - Dive Planning and Personnel - Diving at Altitude - Suiting Up - The Dive

Nitrification and denitrification are essential processes for the aquatic ecological system and vital for human health. While ammonia is applied for disinfection together with chlorine to produce chloramine, excessive ammonia may cause nitrification and bacteria growth in the water transmission pipeline. Since excessive discharge may cause eutrophication and deterioration of the aquatic system, nitrate is regulated for wastewater discharge in sensitive areas. Further, nitrate needs to be monitored and controlled in drinking water treatment to protect against methemoglobinemia in bottle-fed infants. Various conventional technologies exist, such as adsorption, ion exchange, photocatalytic oxidation, air stripping, biological nitrification and denitrification, and so on, to remove nitrogenous compounds from water. Since ammonia and nitrate are important constituents in fertilizers besides phosphorus (P) and potassium (K), nutrient recovery is drawing attention to maintaining the supply of reliable and sustainable fertilizers. This book provides a comprehensive overview of nitrification and denitrification.

A union list of serials commencing publication after Dec. 31, 1949.