EPA-105-GA13-03-A271

105

8,770 千元

提升土壤及地下水污染調查及整治技術工作

2016/01/12

2017/01/11

王子賓

土污基管會

詹皓凱

霖昌工程有限公司

土壤及地下水

土壤及地下水污染、地電阻影像法、透地雷達、電磁法

Soil and Groundwater Pollution, Electrical Resistivity Tomography, Ground Penetrating Radar, EM

劉興昌

陳宜傑

02-77077706#

ijie@gte.tw

國內地球物理探勘技術已廣被運用在土壤及地下水污染場址調查與整治評估作業中，本計畫屬延續性二期計畫，將以降低現場調查干擾，提升訊號解析能力為主軸，同時因應各類型工廠特性、水文地質特徵、整治規劃設計及長期地下水管理之發展，擴大應用層面，並研析國外文獻與經驗，評估新穎技術本土化應用，期能使國內地球物理探勘技術於土壤及地下水污染問題的協助及應用上更為躍進與深化。 本計畫依審查會議及工作進度會議等充分討論，提升計畫品質與管制考核進度，透過實場試驗，探討地電阻影像法（ERT）、透地雷達法（GPR）、感應電磁法（EM）及應用其他成熟技術，協助解決土壤及地下水污染整治成效場址問題，實場試驗包含大型棄置掩埋場址、運作中工廠污染控制場址、深層地下水污染控制場址共計三處場址，污染物質包含爐石、重金屬污泥與含氯有機溶劑，依據不同場址特性與需求規劃合宜之技術，建立本土化施測準則。 依據本計畫實場成果，完成優化「地球物理探勘指引」，包含增加地電阻影像法數值模擬、感應電磁法原理與調查流程、案例研析等，並彙整國內外期刊文獻，以表格化分類方式俾利於檢索。案例與模場成果涵蓋非法棄置掩埋場址、油庫、運作中工廠、地下掩埋物、大區域及深層地下水污染場址。在詳細探測規劃、充分落實現場工作、專業資料處理，並配合傳統調查方式的條件下，應用地球物理探勘技術確實對於污染問題之調查、驗證及整治成效評估等作業的完整性更為提昇。

土壤及地下水污染、地電阻影像法、透地雷達、電磁法

EPA-105-GA13-03-A271定稿本.pdf

12MB

2017/5/1 上午 12:00:00

This project is in the second period of the project. With the tests in three waste and landfill sites, this essay discusses how to efficiently apply geophysical technologies, including electrical resistivity tomography (ERT), ground penetrating radar (GPR) and electromagnetic (EM) method to investigate soil and groundwater contamination. Furthermore, these techniques can test the feasibility of other proven technologies in soil and groundwater applications. This project focuses on detecting the distribution of remediation reagents in the soil and groundwater contamination site. From the ERT results, when the conductivity of remediation reagents is higher than conductivity of groundwater, the rate of increase of the electrical conductivity can estimate the distribution of reagents from time-lapse (TL) analysis. Based on experience, the resolution of surface ERT is common at different depth, so it is suitable for screening evaluation. Comparatively, cross-hole ERT has higher resolution, so it is suitable for surgical remediation design. In the limitations of deep groundwater contamination sites, TL-CHERT is a viable technology, especially for improving the benefits of wells. Besides, multi-frequency EM can detect the conductivity of materials at different depth simultaneously, to increase the effectiveness for investigation at the landfills. Multi-frequency EM is indeed better than traditional single-channel GPR for 3D tomography. However, its skin depth is limited, the accuracy of GPS signal is poor and the funding requirements are high. Apart from this, time domain reflector (TDR) and self-potential method (SP) can detect the reagent transportation, groundwater flow direction and fluid interface etc. these two techniques are still developed. This project also optimizes “Geophysical Exploration Guide”, including the principle and survey process of induction electromagnetic method, case study, ERT numerical simulation, and compiling more than 100 articles of international journals into tables for search.

Soil and Groundwater Pollution, Electrical Resistivity Tomography, Ground Penetrating Radar, EM