Importance Of Landfill Essay

1.Importance of landfills

Firstly, landfill parallels society’s growing awareness of the need to protect human health and the environment.[1]Since it is not environmental friendly to dispose waste casually, it’s better to dispose and treat waste using a professional mean.

Secondly, landfill has big capacity to dispose waste. Since the amount of waste fluctuate every year, sometimes the amount of waste exceeds the capacity for recycling, recovering or incineration.[2]Landfill is also a safe net for other waste management operations experiencing a temporary lack of capacity.[2]

Thirdly, landfill is cost-effective, because it is clear that society cannot sustain other sustainable development(recycling and recovering) in the long run, though it is considered sustainable from an environmental perspective.[2]

Also, not all wastes can be recycled, recovered and recycled, but

Water management in landfill

Water management is to safeguard the protected environmental values of surface water and groundwater from potential impacts associated with contaminated storm water, sediment and leachate.[7]

a. Storm water management

To handle storm water, runoff, erosion and sediment control should be focused. To manage storm water runoff, the Hillside Landfill uses sedimentation ponds, silt fences, rock dams[Fig.7], erosion control mats, and other best management practices. Erosion control devices, including storm water ponds[Fig.6], ditches and channels, are inspected to ensure that they serve their intended purpose.[8]

Fig.6 Water pond[8] Fig.7 rock dam[8]

b. Leachate management in landfill

In order to reduce infiltration and collect leachate, Landfill surface sealing systems and Landfill base sealing systems[Fig.8] need to be constructed.

Fig.8 landfill surface sealing