solid waste management
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    solid waste management solid waste management Presentation Transcript

    • SOLID WASTE
    • WHAT IS SOLID WASTE?
      • ANY UNWANTED OR DISCARDED MATERIALS RESULTING FROM RESEDENTIAL,COMMERCIAL,AGRICULTURAL AND HOUSEHOLD ACTIVITES.
    • TYPES OF SOLID WASTE
      • MUNICIPAL WASTE
      • INDUSTRIAL WASTE
      • AGRICULTURAL WASTE
      • BIO-MEDICAL WASTE
    • CLASSIFICATION OF SOLID WASTE IN KATHMANDU Source:KMC,2001/2004
      • THE TOTAL WASTE GENERATED IS 450TON/DAY.
      TYYPES OF WASTE QUANTITY/TON ORGANIC 252 INORGANIC 135 TOXIC 9 OTHERS 54
    • COMPOSITION OF WASTE THE COMPOSTION OF MUNICIPAL WASTE.
    • DEALING WITH SOLID WASTE SOLID WASTE WASTE MANAGEMENT POLLUTION PREVENTION THROWAWAY OR HIGH WASTE APPROACH BURYING BURNING LOW WASTE APPROACH 3R-PRINCIPLE WASTE MANAGEMENT
    • GENERAL PROCESS OF HANDLING WASTE
      • WASTE GENERATION
      • WASTE HANDLING AND SEPARATION, STORAGE AND PROCESSING AT THE SOURCE.
      • COLLECTION
      • SEPARATION AND PROCESSING AND TRANSFORMATION OF SOLID WASTES.
      • TRANSFER AND TRANSPORT
      • DISPOSAL
    • 3-R PRINCIPLE
      • REDUCE
      • THE AMOUNT OF WASTE GENERATED CAN BE REDUCED THROUGH OUR SMALL EFFORTS.
      • THINGS THAT LAST LONGER,THINGS THAT CAN BE USED MORE THAN ONCE
      • REUSE
      • WE CAN REUSE MANY THINGS BEFORE WE THROW THEM AWAY
      • POLYTHENE BAGS,CLOTHING,SHOES,CONTAINERS ETC.
      • RECYCLE
      • MANY ITEMS SUCH AS PLASTICS,PAPER,CANS CAN BE RECYCLED TO USE AGAIN.
    • RECYCLABLE MATERIALS
      • THERE IS A NEED FOR ENCOURAGING THE USE OF REUSEABLE MATERIALS.
      • TOTAL RECYCLABLE MATERIALS = 150 TON/DAY
      • SCRAP METAL = 3832 TON/YEAR
      • PLASTICS = 3832 TON/YEAR
      • PAPER = 3825 TON/YEAR
      • GLASS, BOTTLES = 5875 TON/YEAR
    • PLASTICS
      • PLASTICS ARE PRODUCED FROM PETRO-CHEMICALS.
      • PLASTIC INDUSTRY IS AMONG THE LEADING PRODUCERS OF HAZARDOUS WASTE.
      • PLASTICS ACCOUNT FOR ABOUT 8% BY WEIGHT AND 20% BY VOLUME OF MUNICIPAL WASTE.
      • MOST PLASTICS USED TODAYS TAKE 200-400 YEARS TO DEGRADE.
      • RECYCLING OF PLASTICS ARE USUALLY EXPENSIVE THAN TO MAKE NEW PLASTICS .
    • SOLUTION:COMPOSTING AND RECYCLING
      • COMPOST IS ALSO KNOWN AS BROWN MANURE, IS THE AEROBICALLY DECOMPOSED REMNANTS OF ORGANIC MATTER.
      • IT IS USED MAINLY IN AGRICULTURE AS SOIL CONDITIONER AND FERTILIZER.
      • VERMICOMPOSTING IS A TECHINQUE OF COMPOSTING THAT IS GAINING POPULARITY.
      • RECYCLING INVOLVES PROCESSING USED MATERIALS INTO NEW PRODUCTS IN ORDER TO PREVENT WASTE OF POTENTIALLY USEFUL MATERIALS
      • REDUCE THE CONSUMPTION OF FRESH RAW MATERIALS
      • REDUCE ENERGY USAGE
    • OBSTACLES TO RECYCLING
      • LACK OF RECYCLING PLANTS IN MANY PARTS OF COUNTRY.
      • LOSS OF GRADE AFTER BEING RECYCLED.
      • NO PROPER COLLECTION.
      • NO PROPER SEGREGATION.
      • LACK OF AWARENESS TO RECYCLE THE THROWAWAY PRODUCTS.
    • PAPER OR PLASTIC? WHAT DO YOU CHOOSE?
    • SOLID WASTE AS A RESOURCE
      • RECYCLING PREVENTS POLLUTION CAUSED BY THE MANUFACTURING OF PRODUCTS FROM VIRGIN MATERIALS.
      • RECYCLING REDUCES THE NEED FOR LANDFILLING AND INCINERATION.
      • RECYCLING SAVES ENERGY.
      • RECYCLING DECREASES EMISSIONS OF GREENHOUSE GASES THAT CONTRIBUTE TO GLOBAL CLIMATE CHANGE.
      • RECYCLING CONSERVES NATURAL RESOURCES SUCH AS TIMBER, WATER, AND MINERALS.
      • RECYCLING HELPS SUSTAIN THE ENVIRONMENT FOR FUTURE GENERATIONS.
    • INCINERATION AND BURIAL
      • INCINERATION IS A WASTE TREATMENT TECHNOLOGY THAT INVOLVES THE COMBUSTION OF WASTE. ASH IS THE REMAINING INORGANIC MATTER.
      • REDUCES VOLUME OF WASTE BY 60%.
      • THEY PUT HIGHLY TOXIC DIOXINS AND FURANS, AND TINY PARTICLES OF LEAD, CADMIUM, MERCURY AND OTHER TOXIC SUBSTANCES.
      • BURYIAL IS A GARBAGE GRAVEYARD.
      • A PROPERLY-DESIGNED AND WELL-MANAGED LANDFILL CAN BE A HYGIENIC AND RELATIVELY INEXPENSIVE METHOD OF DISPOSING OF WASTE MATERIALS.
      • ADVERSE ENVIRONMENTAL IMPACTS SUCH AS WIND-BLOWN LITTER, ATTRACTION OF RODENTS, AND GENERATION OF LIQUID LEACHATE.
    • IMPACTS OF SOLID WASTE
      • FOUL SMELL
      • INCREASE IN DISEASE TRANSMITTING VECTORS THAT LEADS TO EPIDEMIC.
      • POLLUTION
      • GLOBAL WARMING
      • EUTROPHICATION
    • WHAT CAN WE DO?
      • ADOPT THE 3’R PRINCIPLE
      • ENCOURAGE THE USE OF COMPOST RATHER THAN CHEMICAL FERTILIZER.
      • RAISE AWARENESS AMONG THE PUBLIC THROUGH VARIOUS TRAINING AND INTERACTIVE PROGRAM.