Скачать или смотреть What is Bio-Remediation ? Environmental Science

What is Bio- Remediation?

The term of bioremediation has been made of two parts: “bios” means life and refers to living organisms and “to remediate” that means to solve a problem. “Bioremediate” means to use biological organisms to solve an environmental problem such as contaminated soil or groundwater. Bioremediation is the use of living microorganisms to degrade environmental pollutants or to prevent pollution. In other words, it is a technology for removing pollutants from the environment thus restoring the original natural surroundings and preventing further pollution. This process is also known as biotreatment or biorestoration.
Bioremediation and biodegradation should not be confused with each other. Bioremediation as a technique may include biodegradation as only one of the mechanisms involved or applied in the process of bioremediation. Only some of contaminants are biodegradable, and only some of microorganisms can degrade a fraction of contaminants.
Bioremediation is a natural process and is therefore perceived by the public as an acceptable waste treatment process for contaminated material such as soil. Microbes able to degrade the contaminant increase in numbers when the contaminant is present; when the contaminant is degraded, the bio-degradative population declines. The residues for the treatment are usually harmless products and include carbon dioxide, water, and cell biomass.
Bioremediation can save life web and prohibit the passage of dangerous and risky contaminants from an ecosystem to another. Bioremediation can often be carried out on site, often without causing a major disruption of normal activities. This also eliminates the need to transport quantities of waste off site and the potential threats to human health and the environment that can arise during transportation. Bioremediation can prove less expensive than other technologies used for clean-up of hazardous waste.