| Summary: | 碩士 === 中華大學 === 土木與工程資訊學系碩士班 === 95 === The studies of using Municipal Solid Waste Incinerator Bottom Ash (MSWIBA) in asphalt concrete in the past focused on physics, engineering, the composition of heavy metals, its chemical affect, and influence on the environment. My studies use Biological Toxicity to represent its harm towards the environment to estimate the environment quality of MSWIBA.
In a similar study, we found that MSWIBA is toxic in a short term batch leaching test. So we implemented MSWIBA in the form of Impermeable to know its influence on the environment. First, we mixed in varying amounts of more or less MSWIBA asphalt concrete to try Flat Plate Leaching Test in the laboratory. We analyzed the end product of the experiment to record its biological toxicity, water quality, and it’s concentration of heavy metals. We correlated our results to the Transport and Fate Model so we can discuss the potential environmental harm that MSWIBA may cause.
According to the result of the studies, we know that between 25% and 50% of MSWIBA, the toxicity falls between the middle and high levels of toxicity, according to the data found in the Transport and Fate Model. In the strictest circumstances of rainfall, the highest consistency and toxicity of the seven metals in surface runoff are; Nickel 64.62ppm, Chromium 31.81ppm, Lead 7.79ppm, Zinc 3.03ppm, Cadmium 2.03ppm, Copper 0.49ppm, and Manganese 0.34ppm. This concentration is not toxic and thus biologically safe.
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