waste waste generation management impact of waste waste management

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WASTE WASTE GENERATION & MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

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HARMS OF DOMESTIC WASTE Discarded thermometer contains mercury, lead – dangerous Discarded thermometer contains mercury, lead – dangerous Insecticides – highly toxic – mix with water – damage to environment Insecticides – highly toxic – mix with water – damage to environment Sharp things – injury Sharp things – injury Perfume cans/ batteries – can ignite Perfume cans/ batteries – can ignite Landfill dumping – causes pollution of soil/ breeds disease causing mosquitoes, flies Landfill dumping – causes pollution of soil/ breeds disease causing mosquitoes, flies

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Page 1: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

WASTEWASTE GENERATION & MANAGEMENTIMPACT OF WASTEWASTE MANAGEMENT

Page 2: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

WASTE GENERATION & MANAGEMENT

• SOURCES OF WASTE –• DOMESTIC WASTE: paper, plastic goods, batteries, glass,

packing material [cans, cartons, envelops,etc], kitchen waste[vegetable peels, left over food, etc], sharp edged things[blades, knives, scissors], discarded thermometer, insecticides, human excreta, paint material, ash residue from coal and wood.

Page 3: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

HARMS OF DOMESTIC WASTE

• Discarded thermometer contains mercury, lead – dangerous• Insecticides – highly toxic – mix with water – damage to

environment• Sharp things – injury• Perfume cans/ batteries – can ignite• Landfill dumping – causes pollution of soil/ breeds disease

causing mosquitoes, flies

Page 4: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

INDUSTRIAL WASTEImportant industrial wastes : Mining-[ tailing – waste generated after mineral extraction from ore- results in generation of acids and alkaline drainage], uranium mining – hazardous radon gas released.Cement factories – dust and gases[quarrying of limestone],fossil fuels like coal, petroleum, natural gas release waste.Construction units – demolition/ construction – solid non-biodegradable waste [concrete, plaster, metal, wood, plastic,etc]Thermal Plants – coal burnt to make steam which runs the generator to produce power- smoke released- gaseous waste- ash residue[ fly ash]

Page 5: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

SOME MORE INDUSTRIAL WASTES• Oil refineries – gaseous and liquid waste released in form of

chemicals• Nuclear Power Plants – uranium & plutonium- major raw

materials – generate radioactive waste remaining for thousands of years[generations affected], leakage of radioactive materials can cause death and destruction of environment..• Textile industry – water used to dye cloth released as waste –

filled with chemicals – toxic waste – damages environment• Tanneries – leather made from animal skin- tanned with

chemicals- toxic liquid waste released – pollutes ground water.

Page 6: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

TWO MORE TYPES OF INDUSTRIAL WASTES• Distilleries – beverages and alcohol manufacturing – large

amount of liquid waste released.• Iron and steel industry – large amount of water required to

make steel / ash and dust waste released / acids like sulphuric acid, hydrochloric acid released / smoke, gas released.• Harmful waste also released from paper, sugar, fertilizer,

rubber industries.

Page 7: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

AGRICULTURAL WASTE

• Wastes from poultry farms, slaughter houses, harvest waste.• Fertilizer run off from fields• Waste generated from threshing- beating action to separate

grains from husk/ separating seeds from plant- threshers used -release straw and dust• Pesticides enter into water, air and soil

Page 8: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

MANAGING AGRICULTURAL WASTE

• Most of agricultural waste is bio-degradable unlike industrial waste.• If managed properly, can be useful.• Waste can be used to generate energy/ make compost.

Page 9: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

MUNICIPAL WASTE

• Includes solid and liquid waste generated in homes and offices.• Solid waste often dumped in open landfills or disposed off in

incinerators- liquid waste / sewage released in water bodies or low-lying areas.• Much of the waste is non-biodegradable[ plastic, glass..]

Page 10: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

CLASSIFICATION OF WASTE

• BIODEGRADABLE WASTE – • Materials that decompose through action of bacteria, fungi, other

living organisms.• SIMPLE BIO-DEGRADABLE – decomposed easily through natural

process[dead remains of animals and plants/ excreta…]• COMPLEX BIO-DEGRADABLE – not decomposed easily/ has resistance

to break down / take long time to decompose completely [ cloth]

Page 11: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

NON-BIODEGRADABLE WASTE

• Not decomposed in soil.• Made of plastic, metals, synthetic clothes, chemicals,

radioactive waste, polythene….• Some non-biodegradable wastes can be recycled- plastic,

metals, glass, etc.• Recycling – the only feasible solution to handle such waste.

Page 12: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

HARMS OF NON-BIODEGRADABLE WASTE• PLASTIC- production and disposal causes damage to

environment• Constituents of plastic – benzene/ vinyl chloride cause cancer• Constituents of plastic – gases /liquid hydrocarbons – spoil air

on burning/ soil• Plastic wastes clog drains/contaminate water/ choked drains

become breeding grounds for mosquitoes/ cause flooding in rainy season• Burning plastic releases poisonous chemicals like dioxin in the

air.

Page 13: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

STYROFOAM & CANS• Disposable cups, plates, egg trays, etc made of Styrofoam

not recyclable.• Petroleum used to make Styrofoam – releases toxic chemicals

like styrene on burning.• Cans –popular containers of food, drinks and sprays – mostly

made of tin , aluminium.• Acidic food like fruits and vegetables may cause corrosion of

tin – cause nausea, vomiting, diarrhoea after ingesting canned food.

Page 14: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

GLASS

• Common container of liquids – can cause injury if not disposed properly .• Most glass – not environment friendly constituents – like

phosphates, borates, fluorides..

Page 15: WASTE WASTE GENERATION  MANAGEMENT IMPACT OF WASTE WASTE MANAGEMENT

BIOMEDICAL WASTE / BMW

• Consist of solids, liquids, laboratory waste – potentially infectious.• Must be properly managed to protect general public, health

workers, sanitation workers who are regularly exposed to biomedical waste as an occupational hazard.