tailieunhanh - Heavy Metals in the Environment: Using Wetlands for Their Removal - Chapter 11

Với sự tổ chức lại của sinh quyển bởi sự phát triển kinh tế và công nghiệp của con người, một mô hình mới và nhiều cộng sinh môi trường và kinh tế đang nổi lên. Liên kết bởi các biogeochemistry của nguyên tố hóa học, hệ thống sinh thái, đặc biệt là các vùng đất ngập nước, trở thành công nhận như là một phần của nền kinh tế thông qua công việc của họ trong việc lọc các chất độc hại như nặng kim loại. Càng ngày, các vùng đất ngập nước đã được tìm thấy được các bộ lọc chất. | CHAPTER 11 The Ecological Economics of Natural Wetland Retention of Lead Lowell Pritchard Jr. CONTENTS Evaluation Emergy Economic Lead Filtered by the Measurements of Wetland Energy and Emergy Economic Lead Retained by the Emergy Evaluation of Impacted Emergy Evaluation of Lead Smelter-Chemical Recovery Comparison of Treatment Economic Analysis Using Emdollar Evaluation of Wetland Lead Economic Valuation of Wetland Lead Comparison of Emergy and Economic Wetland Potential for Lead Filtration in the Implications for Environmental Summary and With the reorganization of the biosphere by human economic and industrial development a new and more symbiotic pattern of environment and economics is emerging. Linked by the biogeochemistry of chemical elements ecological systems particularly wetlands are becoming Condensed by the Editor. 121 2000 by CRC Press LLC 122 HEAVY METALS IN THE ENVIRONMENT USING WETLANDS FOR THEIR REMOVAL recognized as part of the economy through their work in filtering toxic substances such as heavy metals. Increasingly wetlands have been found to be filters of many wastes of the economy which can be retained in the landscape to mitigate the impact of economic activity. This chapter is an evaluation of a Florida wetland system which filtered large quantities of lead from the discharge of a battery processing plant. Field methods were used to compare treatment wetlands with reference wetlands. Comparison was made between emergy analysis spelled with an m and mainstream economic analysis methods in evaluation of wetland services in filtering a toxic metal. An estimate is made of the potential value of wetland filtration of lead to the state and nation. Two systems for