Aartee Mishra is teaching live on Unacademy Plus
Environment Book Summary Presented Bu Aartee Mishra
CHAPTER 5 ENVIRONMENTAL POLLUTION (Part -3)
Most Preffered du Reuse Recycle Compost Incineration LI Waste Diversion Waste Disposal Landfill Figure Waste Disposal Practices Hierarchy
Impact of Waste Dumping Environmental impact Release of methane from decomposition of biodegradable waste under anaerobic conditions which can cause fires and explosions. It is also a major contributor to global warming. Problem of odour especially during summers Migration of leachates to receiving water Health Impact: Uncontrolled burning of waste releases fine particles which are a major cause of respiratory disease and cause smog. Dumping sites provide breeding sites for mosquitoes thus increasing the risk of diseases such as malaria, dengue
BIOREMEDIATION Bioremediation is the use of microorganisms (bacteria and fungi) to degrade the environmental contaminants into less toxic forms. The microorganisms may be indigenous to a contaminated area or they may be isolated from elsewhere and brought to the contaminated site. . The process of bioremediation can be monitored indirectly by measuring the Oxidation Reduction Potential or redox in soil and groundwater, together with pH, temperature, oxygen content, electron acceptor/donor concentrations, and concentration of breakdown products (e.g. carbon dioxide) In situ bioremediation In situ-It involves treatment of the contaminated material at the site.