as completed and submitted on time. Submission of the hard copy is required to r
ID: 286161 • Letter: A
Question
as completed and submitted on time. Submission of the hard copy is required to receive a grade. 1. Please answer the following questions regarding ground water contamination. [15 a. Assume a negatively charged chemical is spilled and begins to leach toward the water table. Will this chemical travel faster in an area with high fracture or in an area with torrid flow? Why? b. Why would it be hard to determine if an area had high fracture compared to an area with torrid flow? Why is this important for estimating ground water contamination?Explanation / Answer
A. If the negative charged chemical anionic in nature(most of the pollutants comes under this class only) gets spilled in the surface then there are various methods by which we can stop the flow of these chemicals even if the flow of pollutants is torrid in nature. This an be done by adding cationic chemicals barriers in the soil which can prevent their interactions with the water aquifer. But in the case of high fractured formation even the slow movement of pollutants can’t be stopped efficiently and thus the movement of the chemicals would be faster in the fractured zone as compared to torrid flow of pollutants.
B. It’s very hard to know about the various fractures that we would be encountering in a formation as compared to assess the flow behaviour because flow behaviour depends on the velocity and nature of pollutants while the fracture regime is hard to judge in the case of ground water pollutants as there are various complexity in the fracture natwork of a formation because it depends on various types of fracture planes and cleavage planes that is present in the rock structure.
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