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In Situ Treatment Technology - Chapter 2

Vòng đời Thiết kế bơm và Điều trị Thay đổi tập trung của Capital Thời gian chi phí Chi phí điều hành Sử dụng Thiết kế Vòng đời Mô tả các kết thúc của dự án là sạch? Chậm phát triển so với cuối Active Thiết kế Quản lý Vòng đời Sinh hóa phương pháp điều trị Situ Xác định Thời gian cần thiết để Hoàn thành một vòng đời trong Tài liệu tham khảo Xử lý ô nhiễm nước ngầm khái niệm vòng đời giúp tập trung thiết kế các chiến lược chính cần thiết để khắc phục thành. | Nyer Evan K. Lifecycle Design In Situ Treatment Technology Boca Raton CRC Press LLC 2001 CHAPTER 2 Lifecycle Design Evan K. Nyer CONTENTS Lifecycle Design for Pump and Treat Systems Concentration Changes with Time Capital Costs Operator Expenses Using Lifecycle Design to Describe the End of the Project What is Clean Retardation vs. Biochemical Activity Active Management Lifecycle Design for In Situ Treatment Methods Determining the Time Required to Complete a Lifecycle in Groundwater Remediation References The lifecycle concept helps to focus the designer on the main strategies necessary to successfully remediate a site. The concept of lifecycle design and its use on groundwater was first published in 1985 in one of the author s books Groundwater Treatment Technology. The simple basis for the lifecycle concept is that groundwater remediations are unique and that the requirements for the project will change over the life of the project. One must design for the entire life of the project not just the conditions found at the beginning. Since 1985 we have continued to use the concept of lifecycle on groundwater treatment designs. However over the years there have been three major interpretations of the lifecycle. This chapter will review each of the main interpretations of the lifecycle of a groundwater remediation and within the review show how design concepts have changed in groundwater remediation over the last two decades. 2001 CRC Press LLC There are two reasons that this book contains an entire chapter on the lifecycle design concept. First the lifecycle as originally described in 1985 was an early indicator that we would not be able to reach clean with pump and treat systems. Understanding the lifecycle of a groundwater remediation will help us understand the limitations of pump and treat and help us understand the possible limitations of any in situ treatment method. Second in situ treatment remediations will go through a lifecycle. Once again the conditions at