5. Describe some concerns about waste incineration.
There are health concerns associated with the incineration of garbage. Particles of airborne ash
contain high levels of chemicals such as dioxin; lead, furans, and cadmium are only a few which
may potentially cause lung cancer. Incinerators must also compete with recycle programs for
paper, plastics, and other materials which could be recycled and reused and initial construction
costs are higher for a typical facility.
6. List some benefits and drawbacks of recycling wastes. What are the major types of materials
recycled from municipal waste, and how are they used?
There are many different benefits and drawbacks to recycling. Recycling reduces the pressure on
landfills and incinerators, reduces the demands for raw materials, and reduces energy
consumption, air pollution, and litter. While recycling saves money, energy, and space, there are
also drawbacks. Contamination is a major obstacle in plastic recycling as well as wild
fluctuations in commodity prices which make it harder to develop a market for recycled
materials. Transportation of products and storage of used plastics is more expensive than the
price of virgin plastic made from oil.
Municipal waste is defined as trash or household garbage. Much of our regular household waste
can be recycled over and over again. The major types of recyclable are paper, glass, tin cans,
aluminum, and plastic. These materials are usually processed into raw material such as fibers and
remanufactured into new products. Plastic materials are processed into food packaging,
remanufactured plastic products, polyethylene bins and bags, PVC sewer pipes, flooring and
window frames, building insulation board, fleece, fencing, garden furniture, fiber filling for