. Solid Waste Management Every day, tonnes of solid wastes are disposed off at landfill sites. This waste comes from homes, offices, industries and various other agricultural related activities. These landfill sites produce foul smell if waste is not stored and treated properly.
When hazardous wastes like pesticides, batteries containing lead, cadmium, mercury or zinc, cleaning Fig . . (a) DEWATS system at Auroville (b) RZWT system at Aravind Eye Hospital G. Nammalvar was a supporter and expert of organic farming .
He was an agricultural scientist, environmental activist celebrated for his work on spreading Ecological farming & Organic farming . He was against the use of chemical fertilisers and pesticides. He trained hundreds of farmers in natural farming. Nammalvar was the author of several Tamil and English books on natural farming, pesticides & fertilisers and was featured in magazines & television programs.
He founded the Nammalvar Ecological Foundation for Farm Research and Global Food Security Trust or simply Vaanagam at Karur, Tamilnadu. He developed social forest at Ammankurai and the Kolunji Ecological Farm in Pudukottai. He and his friends made a -acre barren land into fertile cultivable land in the dry Pudukottai district. He planted varieties of trees in the same waste land extending in acres.
His organization ‘Kudumbam’ preserves and regenerates hundreds of native flora and fauna, in order to ensure a sustainable livelihood. solvents, radioactive materials, e-waste and plastics are mixed up with paper and other scraps and burnt, they produce gases such as dioxins. These gases are toxic and carcinogenic. These pollute the surrounding XII Std Biology-Zoology Chapter- XII Std Biology-Zoology Chapter- Environmental Issues air, ground water and can seriously affect the health of humans, wildlife and our environment (Table .
). Solid Waste management includes the activities and actions required to manage waste from its inception to its final disposal. This includes the collection, transport, treatment and disposal of waste, together with monitoring and regulation of the waste management process. It is all about how solid waste can be changed and used as a valuable resource.