What is land remediation?
News are often dirty tanker stories that spill oil and production facilities that secrete chemicals into groundwater. Despite talking about the problem, it is rare for anyone who is transparent about what will happen to the contaminated soil or a responsible company. Soil remediation is the process of removing materials that are potentially dangerous from contaminated soil. Businesses and corporations are often responsible for regional and national environmental protection agencies if it is necessary to correct or fix the land related to their business companies. While some cases are settled by companies that show themselves and agree to pay fines or remedy the land, there are not many of them. Legal battles force society to act responsibly and clean contamination, it can take decades and state significant amounts of money.
in the United States in 1980. This bill was sold by the Act on the Environmental Reaction, Compensation and fromthe familiarity (Cercla). This bill had three main results: it provided the US Environmental Protection Agency (EPA) to manage, enforce and even perform cleaning activities; Created the Tax Fund known as Superfund to clean the site of hazardous waste; And he created potentially responsible parties (PRP), which allowed companies to participate in pages without admitting responsibility for the entire website. If the EPA performs cleaning, then it can force a corporation or even more corporations to pay the government and continue remediation of land.
chemicals and heavy metals that are left or discarded by factories and manufacturing equipment often persist in the ecosystem and contaminate food and water sources. Soil rehabilitation can take a huge amount of time on each site, not to mention money and legal complications. Heavy metals such as lead, mercury and arsenic and chemicals such as volatile organic chemicals (VOC) of fuels and solvents and polychlorinated biphenyls (PCB) from ElectronThey are particularly predominant in post-industrial soil. Exposure of a person contaminated to soil, water and food can cause anything from minor health problems to life -threatening diseases such as cancer.
In the past, land remediation was carried out only by excavation. This literally included digging soil and stone and moving it to a zone landfill for hazardous materials. The soil was then replaced by clean soil.
When toxic contaminants settles on the bottom of water bodies, it is removed in a similar process called dredging. In this process, tankers remove contaminated sediments and sludge into the machine, separate chemicals and heavy metals from water through filters and chemicals, and clean the cleaning water back. The contaminated sediment then moves to the appropriate landfill.
There are alternatives to excavations that are less invasive, such as stabilization, solidification and bioremediation. The goal with stabilization is not to remove toxic or hazardous materials, ale to stabilize the molecules to a state in which they are not harmful to humans or ecosystems. Chemicals or complementary compounds are added to the contaminated soil to combine toxins to form stable, non-hazard compounds. This can be done by spraying additives on the upper part of the soil or by issuing additives in liquid or gaseous form over the pipes pushed deep into the soil.
solidification is the process of adding chemical agents that combine with toxins in contaminated water and sludge to make solid compounds that can be separated or filtered from water. In this way, the water is left in the natural ecosystem, but the chemicals are removed. Biorediation involves the addition of specific bacteria or plants that feed on contaminated particles and create harmless by -products. These organisms must be selected carefully, as they often multiply without natural predators.