Electronic waste, also known as e-waste, is all parts of electronic devices or broken devices, such as household appliances, televisions, electric stoves, air conditioners, microwaves, radios, computers, mobile phones, batteries, hard drives, motherboards, circuits, monitors, etc., that we discard.

Most e-waste contains a series of highly polluting materials, including heavy metals such as mercury, lead, cadmium, lead, chromium, arsenic or antimony, which not only harm the environment, but are also highly dangerous for human health.

The best way to dispose of electronic waste is by recycling. Electronic waste contains precious metals including gold, silver, copper, platinum, and palladium, as well as significant amounts of iron, aluminum, and plastics, which can be recycled. Giving away electronic devices that are no longer needed is always the best option, but if it is a product that cannot be repaired, it is important to deposit it at a local recycling center that accepts electronic waste. Recycling centers reclaim many of the materials from which these products are made, including plastics, glass, metal, and aluminum that can be recovered and reused in new electronics.

In the United States, there are 633 material recycling centers. In these local recycling centers, the waste we generate is stored, and that has the capacity to be recycled so that other people or companies can take advantage of it. Waste that is not recycled takes many years to decompose, which pollutes and harms the health of humans and the earth.

In this sense, recycling centers are very important in the fight against environmental pollution, since they can clean, classify and pack a total of 100,000 tons of waste per day. However, the recycling centers cannot do all the work, the waste must have a correct treatment from the consumer, who must separate and clean the waste so that it can be classified correctly in the center and later sent to factories for transformation or processors.

The production of human waste increases year by year. This vast amount of trash has formed islands hundreds of thousands of miles long in the oceans. There is so much litter that ends up in the oceans and on land that it has entered the food chain, greatly damaging biodiversity.

One way to reduce the amount of human waste is recycling in recycling centers; by lengthening the useful life of materials and preventing them from ending up in landfills, but also avoiding the production of new materials and thereby avoiding the over-exploitation of raw materials and the pollution that comes with the extraction of materials and their production.

Sanitary landfills are designated sites for the disposal of garbage or other types of solid waste. Large holes are built at these sites into which garbage is buried. Until a few years ago, landfills were a major source of pollution due to the contact of toxic waste with the environment, but today they are designed to prevent waste from reaching and contaminating groundwater.

Sanitary landfills are built with a layering system that isolates debris from air and water, which is vital to preventing pollution. The garbage is compacted in cells to make the most of the available space, for which heavy machinery such as excavators and compaction equipment is used. Some of the polluting byproducts of garbage generation, such as methane, are captured and used to generate electricity. However, landfills continue to represent an important source of pollution, since when they reach their maximum capacity, the land on which they are built will take thousand of years to recover.

Waste transfer stations or material recycling facilities are sites where recyclable materials and waste are collected. At the stations, the waste is classified and separated to later be transferred to another area or facility for recycling, demolition, or landfill. The waste transfer stations are not just another stop for our garbage, here a fundamental process is carried out to reduce pollution by waste.

Waste transfer stations reduce waste going to landfills, preventing much hazardous chemical pollution remains from ending up in landfills, plus the transfer of waste from local collection trucks to larger vehicles, such as a train or ship, reduces significantly the cost of transportation and the environmental impact of transporting garbage.