Quản lý Bể chứa ngầm MỤC TIÊU Hoàn thành chương này, học sinh nên: • Hiểu được bản chất và tầm quan trọng của mối đe dọa môi trường của bể chứa ngầm bị rò rỉ. • Hiểu được nguyên nhân của bể chứa dưới lòng đất và thất bại của đường ống. • Hãy làm quen với các lý thuyết và thực hành của xe tăng thử nghiệm nội bộ và giám sát bên ngoài cho các rò rỉ. • Hãy làm quen với các biện pháp khắc phục hậu quả, thủ tục phục hồi chức năng, xe tăng, và các. | 14 Underground Storage Tank Management OBJECTIVES At completion of this chapter the student should Understand the nature and magnitude of the environmental threat of leaking underground storage tanks. Understand the causes of underground storage tank and piping failures. Be familiar with the theories and practice of internal tank testing and external monitoring for leaks. Be familiar with remediation measures tank rehabilitation procedures and requirements for new tank and piping installations. Be conversant on the RCRA Subtitle I requirements for underground storage tank management. Be conversant on the distinctions between migration of subsurface release of MTBE and releases of other gasoline components and know where to find current information on the problem. INTRODUCTION Leaking underground fuel storage tanks USTs can cause fires or explosions and or contaminate groundwater. More than 50 of the population in the . depends upon groundwater for domestic use. Petroleum products including gasoline are highly mobile as they float on a sloped or flowing groundwater surface. Flammable liquids and or vapors seeping into basements or other subterranean spaces can create explosive conditions inhalation exposure hazards or both. Thus leaking USTs have been and are a major threat to the public health and safety and to the environment. In the Hazardous and Solid Waste Amendments of 1984 HSWA Congress added a new Subtitle I to the Resource Conservation and Recovery Act RCRA to address the problem of leaking underground tanks used for storage of petroleum and hazardous substances. The implementing federal regulations are found in 40 CFR 280 and 281 53 FR 37082 . Tanks used for storing hazardous wastes are regulated by 40 CFR 264 and 265. In 1994 the . Environmental Protection Agency EPA estimated that about million tanks at more than 500 000 sites were subject to federal regulation EPA 2001 by CRC Press LLC FIGURE Galvanic corrosion of an unprotected steel .
