tailieunhanh - Handbook of industrial and hazardous wastes treatment - Part 5

Ô nhiễm chất thải nguy hại, thuật ngữ chất thải nguy hại tại chỗ khác nhau, ngoại vi, tại chỗ, và cựu khắc phục hậu quả tại chỗ các công nghệ môi trường, và lịch sử trường hợp được trình bày trong chương này. Các chủ đề của công nghệ khắc phục hậu quả đất diễn tả ở đây bao gồm khai quật, ổn định, kiên cố hoá, tước hơi chân không, khai thác, giải hấp nhiệt, đốt, khí đốt bị bỏ đói, nhiệt phân, không khí nóng tăng cường tước, hơi nước tăng cường khai thác tước, nhiệt bên. | 20 Site Remediation and Groundwater Decontamination Lawrence K. Wang Zorex Corporation Newtonville New York . and Lenox Institute of Water Technology Lenox Massachusetts . INTRODUCTION Summary Hazardous waste pollution hazardous waste terminologies various onsite offsite in situ and ex situ environmental remediation technologies and case histories are presented in this chapter. The topics of soil remediation technologies covered here include excavation stabilization solidification vapor stripping vacuum extraction thermal desorption incineration starved air combustion pyrolysis hot air enhanced stripping steam enhanced stripping thermal extraction subsurface volatilization and ventilation vitrification soil surfactant flushing soil washing soil bioremediation bioventing slurry bioreactor chemical treatment KPEG treatment and natural attenuation. The topics of groundwater decontamination technologies covered here include air stripping ultraviolet radiation oxidation carbon adsorption groundwater bioremediation sewer discharge liquid liquid oil water separation free product recovery in situ flushing trenching containerizing and dissolved air flotation. Site Remediation and Groundwater Decontamination a Joint UN-USEPA Effort At the end of 1993 the United Nations Industrial Development Organization UNIDO the World Bank and the United Nations Environment Programme Industry and Environment Programme Activity Centre UNEP IEPAC started issuing new Industrial Pollution Prevention and Abatement Guidelines. In later years pollution prevention waste minimization and manufacturing process integration together have been referred to as cleaner production by the international community in order to build awareness of sustainable industrial development sustainable agricultural development and environmental protection. The objectives of all these international efforts are to disseminate information on pollution prevention options end-of-pipe treatments .