Nature of agricultural waste and their impact on environment

1. SUBMITED TO
DR. NEELAM
SUBMITED BY
ASHISH (2015A14BVI)

2. WHAT IS WASTE?
• Waste is unwanted and unusable material.
• Waste is any substance which is discarded after
primary use or it is worthless, defective or is of no
use.
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3. TYPES OF WASTES
INDUSTRIAL WASTE MUNICIPAL WASTE
AGRICULTURAL WASTE MEDICAL WASTE
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4. Types Of wastes
RADIOACTIVE WASTE
HAZARDOUS WASTE
ELECTRONIC WASTE
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5. AGRICULTURAL WASTES
• Agricultural wastes (AW) can be defined as the
residues from the growing and processing of raw
agricultural products such as fruits, vegetables, meat,
poultry, dairy products and crops.
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6. AGRICULTURAL WASTES
• non-product outputs of production and
processing of agricultural products
• may contain material that can benefit man
• but whose economic values are less than the
cost of collection, transportation, and
processing for beneficial use.
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7. AGRICULTURAL WASTES
• Agricultural wastes can be in the form of solid, liquid
or slurries depending on the nature of agricultural
activities.
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8. TYPES OF AGRICULTURAL WASTES
• ANIMAL WASTE (DUNG,URINE,SLURRY,DROPING OF
BIRDS,DEAD ANIMALS)
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9. TYPES OF AGRICULTURAL WASTES
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• FOOD PROCESSING WASTE

10. TYPES OF AGRICULTURAL WASTES
• CROP WASTES
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11. TYPES OF AGRICULTURAL WASTES
• HAZARDOUS OR TOXIC WASTE
(PESTICIDES,INSECTISIDES,HERIBICIDES)
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12. IMPACT ON ENVIRONMENT
WASTE FROM CULTIVATION AVTIVITIES
• After using pesticides, most of the bottles and
packages holding these pesticides are thrown into
fields or ponds.
• According to an estimate made by the Plant
Protection Department (PPD), about 1.8% of the
chemicals remain in their packaging
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13. IMPACT ON ENVIRONMENT
• These wastes have the potential to cause
unpredictable environmental consequences such as
food poisoning, unsafe food hygiene and
contaminated farmland due to their potentially
lasting and toxic chemicals.
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14. IMPACT ON ENVIRONMENT
• Modern agricultural practices require the use of
large amount of fertilizers, pesticides and other soil
additives.
• Some of these along with
waste are washed off lands
through irrigation, rainfall,
drainage and leaching into the
rivers and streams where they
can seriously disturb the
aquatic ecosystem
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15. IMPACT ON ENVIRONMENT
• Depletion of dissolved oxygen caused by phosphate
induced algal growth leads to death of fish and other
aquatic biota. In presence of phosphates, nitrates too
bring about an exaggerate growth of vegetation.
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16. IMPACT ON ENVIRONMENT
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17. IMPACT ON ENVIRONMENT
Nitrate pollution
• accumulation of nitrates in water
• drunk by cattle or humans
• combines with the hemoglobin to form
methaemoglobin, which interferes with the
oxygen-carrying capacity of the blood,
producing a serious disease known as BLUE
BABY SYNDROME
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18. IMPACT ON ENVIRONMENT
CROP RESIDUES
• Give shelter to various pathogens, fungi,
bacteria which causes infectious diseases
• If not properly managed they can catch fire and
damage residencial area and cause air pollution
• Decrease the soil productivity by inhibiting the
microbial activity
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19. IMPACT ON ENVIRONMENT
LIVESTOCK WASTE
• Air pollution includes odors emerging from cages resulting
from the digestion process of livestock wastes
• untreated and non-reusable waste source can generate
greenhouse gases while also having negative effects on the
fertility of the soil and causing water pollution.
• germs and substances can spread diseases to humans and
cause many negative effects on the environment.
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20. IMPACT ON ENVIRONMENT
• germs and substances can spread diseases to
humans and cause many negative effects on the
environment.
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21. SYMBOL OF TRUST