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Converting Agricultural Wastes For Useful Purposes

BY: K.INIYA

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Introduction

AGRICULTURE

It is the Cultivation of Animals,Plants,fungi and other life forms for Food ,Fiber and other products used to sustain life. It was the Key development in the rise of sedentary human civilization whereby farming of domesticated species created food surpluses that nurtured the development of Civilization.

AGRICULTURE... GROWING THE FUTURE NOW!!!

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Agricultural Waste

It is waste produced as a result of various agricultural operations. It includes manure and other wastes from farms, poultry houses and slaughter

houses, etc.Agricultural wastes include both natural (organic) and non-natural wastes.

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Cont.,

Main non-natural waste arising include 1)packaging & non-packaging plastics

(e.g. silage and horticultural films) 2) agrochemicals 3) animal health products (e.g. used syringes)

4)waste from machinery (e.g. oil, tyres and batteries)

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Plastic usage in agriculture

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Salient features

RenewableDisplace fossil fuelsReduce GHG emisionsAdded income

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Categories

CropCoconutCoffeeRice,wheatSugar caneCottonPeanutscorn

WasteFronds,husk,shellHull,husk,groundHull/husk,straw,stalkBagasseStalksShellsStalks,leaves

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Rice

Crop: corn, rice &poultry litter

Residue : straw, residues

Process: combustionEquipment: boiler, conveyor,

furnace, turbineMain product :agriculture

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Combustion process

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Sugar cane

Crop: sugarcaneResidue :bagasse and leafProcess: gasificationEquipment:

gasification systemMain product :

heat and steam

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Gasification process

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Bagasse

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The industry must be in remote areas.Every year 200 billion ton was produced.India is the country which produce large amount of sugar.It’s a long process.Lot of Wastes to be produced(crushing process).1800 tones gas

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Corn

Crop: corn, garden and tree trimmings etc

Residue :corn cabs and trimmings

Process: flash carbonizationEquipment:

Transportable reactor systemMain product :

Carbon and electricity

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wheat

Crop: wheat,oats and barley

Residue :hull/husk,straw, stalks

Process: combustionEquipment:

Biomass boilersMain product :

Heat and steam

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Biomass

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Cont.,

Globally,140 billion metric tons of biomass is generated every year from agriculture.This volume of biomass can be converted to an enormous amount of energy and raw materials.Bio mass takes the form of residual stalks, straw, leaves,root,husk, nut or seed shells waste wood animal husbandry waste.

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Agro waste to produce electricity

Latest technology and research have proved that it is possible to generate electricity with agricultural waste.That would mean recycling animal dung, discarded plant husk, rotten leaves etc.to produce electric power and all this without using any edible agricultural product.That would mean more power generation in less time and increased efficiency.

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Example

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Electricity from Onion waste

Recently one company produces over 300,00 pounds of onion waste each day.Which is utilized by the system to generate electricity, enough to power 460 homes.The electricity generated is stored in two 300kw fuel cells, which will also offset 30,000 tons of co2 from entering the

atmosphere each year.

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Example

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Conclusion

Agricultural wastes are produced in huge quantities we must put to a little use by following methods.And make

the world Ecofriendly. I Concluded that

AGRICULTURAL WASTE ALSO... GROWING THE FUTURE NOW!!!

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Every one can help to save resources by recycling.