Abstract
In Japan, the television broadcast system will complete the transition from analog to digital broadcasting on July in 2011. It is expected that a large amount of CRT (cathode ray tube) based television will be disposed when it happens. Since the major component of the CRT glass is lead glass, there is concern that the landfill disposal of CRT glass is possible to lead to contaminations of the surrounding soil and ground water.
In this study, to assess influence of the interaction with CRT glass and soil on lead dissolution behavior, the batch-type shaking tests with CRT glass and several soils as a leaching test were carried out. In the case of the shaking test on CRT glass with river sand or mountain sand, dissolved Pb existed in the eluate. However, In the case of the shaking test on CRT glass with Kuroboku soil, Yellow brown forest soil or Kanuma soil, dissolved Pb did not exist in the eluate. Si concentration in the eluate slowly increased with increasing weight ratio of CRT glass to soil.
