Scrap recycling is one of the least popular in the United States even though most metals can be recycled and there are even some that have a high market value. The recycling of scrap metal is very important since by reusing metals we mitigate the exploitation of minerals, which are a limited resource, and their extraction generates a significant amount of greenhouse gasses.

Most of the waste can be left in the local recycling centers and received payment for it, in this way we avoid this waste ends up in landfills, where it would take hundreds of years to degrade.

Some of the metals that can be sold at recycling centers are copper (which is the best-valued metal on the market), aluminum, brass, lead, iron, and bronze. You can find these materials in all kinds of household waste such as; wires, pipes, kitchen sinks, food cans, soda cans, window frames, door locks, chandeliers and hinges, old jewelry, children’s toys, lamps, and tools.

Although almost most of the metals are recycled, some cannot be reused or that recycling centers do not receive, such as those used for paint or toxic products, some pipes, clothes hangers, and metal scraps, so it’s always best to check directly with your local recycling center.

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.

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.

The waste that can be recycled has different destinations depending on the material in question. The waste that we deposit in the recyclable container is taken by dedicated recycling trucks to the Materials Recovery Facility (MRF). In these recycling centers, the waste is separated and later packed in bundles.

The waste that is not received by the recycling centers, such as plastic bags, electronic devices, or clothing (which vary in each locality and each recycling center) must be taken directly by the consumers to specific collection points so that these can be recycled.

Once separated and packaged, the recyclable materials are sent to recycling plants or processing factories that turn the waste into new products.

Recyclable waste that is not separated in the recycling container or is not taken to collection points, ends up in landfills, where, depending on its material, it can take hundreds of years to degrade or even never do so.

In the United States, only 10% of recyclable waste reaches the transformation stage, and most of it is destined for sale abroad.

Recycling is the process by which the raw materials that make up the waste that we use daily such as paper, glass, aluminum, plastic, etc., are transformed into new materials. This prevents these wastes from entering the seas or earth. But, for this to happen, a series of steps need to be carried out:

• At home – separate and clean waste.
• At local recycling centers – sort, pack, and store, for later sale.
• At processing industries – treat the materials and transform them into new products.

For a few years, the United States entered a crisis due to the accumulation of waste, which was triggered by the new waste policies of China, which was the main buyer of waste in the United States. These new policies are much stricter and among other restrictions, they lowered the minimum standards for pollutants to -1%, which excludes the majority of waste from the United States.