Mục tiêu quản lý chính trong quá trình khắc phục hậu quả của một trang web bị ô nhiễm là được đóng cửa, đó là, để đạt được một tập hợp các điều kiện được coi là môi trường chấp nhận được và sẽ đảm bảo rằng không có hành động trong tương lai sẽ được yêu cầu tại trang web. Một đáng kể đang diễn ra những cuộc tranh luận toàn quốc kết hợp với trung tâm đóng cửa trang web định nghĩa về "làm thế nào sạch sạch" cho các phương tiện truyền thông dưới bề mặt bị ô nhiễm. Chìa khóa vấn. | Suthersan Suthan S. Contaminant and Environmental Characteristics Natural and Enhanced Remediation Systems Edited by Suthan S. Suthersan Boca Raton CRC Press LLC 2001 2001 CRC Press LLC CHAPTER 2 Contaminant and Environmental Characteristics CONTENTS Introduction Contaminant Characteristics Physical Chemical Properties Boiling Point Vapor Pressure Henry s Law Constant Octanol Water Partition Coefficients Solubility in Water Hydrolysis Photolytic Reactions in Surface Water Biological Characteristics Cometabolism Kinetics of Biodegradation Environmental Characteristics Sorption Coefficient Soil Sorption Coefficients Factors Affecting Sorption Coefficients Oxidation-Reduction Capacities of Aquifer Solids pe and pH REDOX Poise REDOX Reaction References 2001 CRC Press LLC Water is scientifically very different in comparison to other liquids. With its rare and distinctive property of being denser as a liquid than as a solid it is different. Water is different in that it is the only chemical compound found naturally in solid liquid or gaseous states at ambient conditions. Water is sometimes called the universal solvent. This is a fitting name especially when you consider that water is a powerful reagent which is capable in time of dissolving everything on earth. INTRODUCTION The primary management goal during remediation of a contaminated site is to obtain closure that is to achieve a set of conditions that is considered environmentally acceptable and which will ensure that no future action will be required at the site. A substantial ongoing national debate associated with site closure centers on the definition of how clean is clean for contaminated subsurface media. The key issue in this debate is What concentration of residual contaminant in the subsurface particularly adsorbed to the soil is environmentally acceptable .
