2.2.1 Environmental Concerns

Be aware of environmental concerns while working on computer systems.

Disposal

Some materials that you'll come across while working on systems need to be disposed of in a specific manner. Most communities have laws that dictate which materials you can and can't put into the common trash. Make sure to check local laws on directives and instructions on how to handle disposing of hardware like:

• batteries
• printer cartridges
• monitors
• PCs

Batteries

Disposal directives for batteries vary on the type of battery. For example, in most states alkaline batteries can be disposed of in the common trash. But some (weird) states like California state that they're hazardous waste, and need to be put in a separate recycling bin for household hazardous waste collection.

Lithium-ion batteries are commonly used in laptop and notebook batteries. However, they only last 2-3 years, making battery replacement one of the most common IT services. You cannot simply throw the old ones away, because they're loaded with toxic chemicals. You'll need to find out how local laws direct citizens to dispose of these type of batteries. If they don't have specific laws, follow the local recommendations.

Monitors

LCD, plasma, and CRT monitors are all considered hazardous waste. They can leak lead and other toxic chemicals, and cannot be thrown in the landfill. This is why it's illegal to do so in many places. In addition, older CRT monitors can retain a large electrical charge long after being unplugged, up to 20,000 volts, which make them very dangerous to handle.

PC Disposal

As a PC support tech, you'll find yourself throwing away old systems. However, remember that old batteries and monitors leak toxic chemicals when improperly disposed of, so it's gonna be illegal in many places. Remember to discharge and recycle a desktop system's power supply. There are also a lot of precious metals inside the components of a PC system which can be recycled. There are companies that extract the gold, silver, and other materials inside, and they might buy old systems off of you (not for much, but it's still something).

Again, check with your local environmental management office to find out what the laws are regarding disposal. Also refer to your organizations Material-Safety-Datasheet for the preferred disposal methods for batteries, printer cartridges, monitors, and PC. #II

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