Nâng cao kim loại tích lũy quá hoang dã thực vật để phát triển các hệ thống Phytoextraction thương mại: Phương pháp tiếp cận và tiến bộ Giới thiệu Lịch sử của Phytoextraction của kim loại đất sử dụng kim loại tích lũy quá loài "trường Revival" - Nghệ thuật Giúp Spread Triết học Meme Phytoremediation Phytoextraction đất kim loại cây trồng tiêu biểu sẽ không loại bỏ các kim loại đủ để hỗ trợ phát triển Phytoremediation của một công nghệ cho Phytoremediation của kim loại độc hại trong đất phát triển thương mại Công nghệ Phytoremediation Sau Paradigm thuần. | 7 Improving Metal Hyperaccumulator Wild Plants to Develop Commercial Phytoextraction Systems Approaches and Progress Rufus L. Chaney Yin-Ming Li Sally L. Brown Faye A. Homer Minnie Malik J. Scott Angle Alan J. M. Baker Roger D. Reeves and Mel Chin CONTENTS Introduction History of Phytoextraction of Soil Metals Using Metal Hyperaccumulator Species Revival Field Art Helps Spread the Phytoremediation Meme Philosophy of Soil Metal Phytoextraction Typical Crops Will Not Remove Enough Metals to Support Phytoremediation Development of a Technology for Phytoremediation of Toxic Metals in Soil Developing Commercial Phytoremediation Technology Following the Paradigm of Domestication and Breeding of Improved Hyperaccumulator Plant Species Select Plant Species Collect Seeds Identify Soil Management Practices Develop Crop Management Practices Process the Biomass Develop Commercial Systems Potential Negatives for Phytoextraction with Hyperaccumulator Species Acknowledgment References Copyright 2000 by Taylor Francis INTRODUCTION The use of plants in environmental remediation has been called green remediation phytoremediation botanical bioremediation phytoextraction etc. This new technology is being developed for the cleanup of both soil metals and xenobiotics. Because metals cannot be biodegraded remediation of soil metal risks has been a difficult and or expensive goal Chaney et al. 1995 1997a . The general strategies for phytoremediation of soil metals is to either 1 phytoextract the soil elements into the plant shoots for recycling or less expensive disposal 2 phytovolatilize the soil trace elements . generation of Hg0 or dimethylselenide which enter the vapor phase or 3 phytostabilize soil metals into persistently nonbioavailable forms in the soil. The third method is usually called in situ remediation by which incorporation of soil amendments rich in Fe phosphate and limestone equivalent are used to transform soil Pb into forms with lower bioavailability and or .
