City of Cactus Transfer Station

Sanitary landfills offer a more advanced waste management approach that further reduces the chances of environmental contamination. The basic unit of a sanitary landfill is still the cell. The idea is to create soil tranches. The garbage is deposited onto layers 1 to 3 meters high and then compacted by bulldozers to reduce the volume. Then the garbage is covered by a layer of dirt. Multiple of these layers are piled together until they reach maximum capacity and thus, we form a cell. The cell is then reinforced on all sides to prevent leakage to the soil.

A landfill is a location that manages our waste. In some landfills the garbage is left in piles, in some the garbage is incinerated and, in some others, the waste is decomposed onto other chemical structures and processed. In some landfills, the waste is buried.

Landfills are in specific areas, and they are away from cities and counties as there are gases that leak from the decomposition of the waste. There are various types of landfills. Some are used for municipal waste, some are used for sorting of the waste, some serve as transfer stations, and some are specialized only for recycling. Each landfill has its acceptance conditions, which means only a specific type of waste can be accepted.

When a load of waste is accepted, the garbage trucks go to the dumping point and offload the materials. During the processing of the waste, the main ideas are to confine the waste in the smallest space possible and to reduce the volume of the waste by compacting it. The garbage trucks are weighed when they enter and exit the landfill. The difference is the tons of garbage deposited and that affects the cost to use the landfill. Each landfill has its prices per ton depending on the type of waste that is deposited.

There is one detail to clear out. Landfills and dumps sound the same but are not. A landfill is engineered to maximally reduce the effect on the environment of the waste. The advantages of landfills over dumps are that landfills are managed with more care and landfills can even recycle the waste to produce other compounds or to even produce energy. Dumps are almost nonexistent today as they do not manage the waste and just leave things in the open.

There is an interesting type of landfill, inert landfills. This type of landfill receives sand, concrete, and other waste related to construction. This type of waste does not have any biohazards nor decomposes, or it does so very slowly. These types of waste neither produce liquid waste. In this category, we mostly have asphalt, rocks, bricks, yard leaves. In this category, we do not include demolition waste.

Each landfill has a different cost to use its services. The price depends on many factors, such as type of waste ( hazardous, construction and demolition waste, municipal solid waste, and inert waste ), location of the landfill, and the individual charges of the landfill. According to statistics, the USA average price per ton is $53.72. The costs tend to be higher in the Pacific area, where they reach an average of $72.02 per ton of waste. The prices are averagely the cheapest in South Central, where they reach $39.66 per ton. From statistics, we see that the highest populated areas, the Pacific and the northeast are the costliest, while the other areas of the USA tend to have cheaper prices per ton.