Se ha denunciado esta presentación.
Utilizamos tu perfil de LinkedIn y tus datos de actividad para personalizar los anuncios y mostrarte publicidad más relevante. Puedes cambiar tus preferencias de publicidad en cualquier momento.

Urban waste (Sociology)

  • Inicia sesión para ver los comentarios

Urban waste (Sociology)

  1. 1. URBAN WASTE  Domestic and industrial waste  25% of India’s total population lives in urban areas  They generate 16 million tons of waste  Average wastes generated per person per day in 8 major cities of India 450 gm  Industrial societies in USA alone produce 11 billion tons of solid waste each year  Urban waste generating industries are cigarette making, mining and metallurgy, fertilizers etc.  Building construction works constitute sufficient solid waste
  2. 2. CAUSES OF URBAN WASTE  Fly ash produced by burning of coal in thermal plants.  Fly ash is dumped in low lying areas near power plants  Fly ash has effect on crop production  Urban waste like garbage, plastics, glasses, abandoned vehicles are exposed to rainfall and waste water  These chemical agents adversely effect growing crops  Textiles, dyes, soap, synthetic detergents, rubber, and pulp, cottage and small scale industries pour their hazardous effluents create disastrous effects on living organisms  Pathogenic organisms excreted by man in urban waste decrease soil fertility  The consumption of vegetables and fruits by man make these organisms to be transmitted in his body  Disease producing organisms are transmitted
  3. 3. WASTE MANAGEMENT Industrial societies produce enormous solid waste These are domestic, commercial, industrial, agricultural and mining wastes The waste stream constitute garbage, garden wastes, food wastes, junk cars, worn out furniture, news papers, office refuse
  4. 4. TYPE OF WASTES Wastes are grouped under seven categories: 1. AGRICULTRE WASTES - rice barn, rice husk, wood waste, coconut shell, cotton wastes, jute sticks 2. Vegetable and fruit processing industries 3. Animal waste 4. Community waste - night soil, sewage, cattle dung, city refuge 5. Industrial waste - fly ash, coal dust - paper waste, mica waste etc. 6. Wastes from aluminium industry, wastes from sugar factories 7. E-WASTE - 85 million cell phones when become out of order - computer waste
  5. 5. THE WASTE STREAM  Steady flow of varied wastes that we produce, from domestic garbage to industrial, commercial and construction refuse  200 billion metal, glass and plastic food and beverage containers used every year in US end up in trash  Newspaper, magazines, advertisements, office refuse are major wastes  Toxic materials should be separated from hazardous materials before recycling  Separating solid waste from liquid and gas. Hazardous waste from non-hazardous waste

×