She was considered to be an expert on the disposal of nuclear waste.
The safe disposal of nuclear waste is a major environmental challenge.
Right now, the whole business of nuclear waste disposal is a disaster area.
In 2009-10, the city paid $2.2 million for solid waste disposal.
Until the 1960s individual farms were responsible for their own waste disposal.
For example some areas require special instructions on human waste disposal.
Less visible in many cities is the problem of waste disposal.
In recent years, most countries have tightened their standards of waste disposal.
In 2009-10, the city paid $833,100 for solid waste disposal.
Conflicting state rules on disposal of medical waste created problems.
