Colorful Solid Wastes

Green Waste

• Green waste is biodegradable waste that can be composed of garden or park waste, such as grass or flower cuttings and hedge trimmings, as well as domestic and commercial food waste.

• Waste - high in Nitrogen content.• Biogas captured from bio-degradable

green waste can be used as bio-fuel.

Brown Waste• Brown Waste is any biodegradable waste that

is predominantly carbon based. • The term includes such items as dry leaves,

twigs, hay, paper, sawdust, corn cobs, cardboard, pine needles or cones, etc.

• Carbon is necessary for composting, which uses a combination of green waste and brown waste to promote the microbial processes involved in the decomposition process.

• The composting of brown waste sustain ably returns the carbon to the carbon cycle.

Red Waste

• Red Waste is a term used to describe items that are prohibited from going into your regular trash.

• Local agencies classify these materials as either "Household Hazardous Waste" or "Universal Waste."

• E.g. : Electronics, Fluorescent Light Bulbs, Paint, and Batteries.

White Waste

• It refers to waste papers which were once used for writing and printing etc in offices and schools.

• The papers belonging to notebooks and textbooks are also called white waste.

Vermi-Composting• Vermicompost is the product of

composting utilizing various species of worms, usually red wigglers, white worms, and earthworms to create a heterogeneous mixture of decomposing vegetable or food waste, bedding materials, and vermicast.

• Vermicast, also known as worm castings, worm humus or worm manure, is the end-product of the breakdown of organic matter by species of earthworm.

• Vermicompost is a nutrient-rich organic fertilizer and soil conditioner, containing water-soluble nutrients

Composition of Municipal Solid Waste in India

Life Cycle of Municipal Solid Waste

Waste Generation in Chennai City by Category

Residential Commercial Halls, Schools, Institutions Industrial

Waste generation in Chennai City

Physical Composition of Waste Generated by Chennai City /day

Food wasteGreen wasteTimber(wood)Consumable plasticIndustrial PlasticSteel & MaterialRags & TextilesPaperRubber & LeatherInerts

Physical composition of waste generated by Chennai city

Chemical Analysis of waste generated by Chennai city

Chemical Analysis of the Waste Generated by Chennai City /day

Moisture

Organic

Carbon

Nitrogen

Phosphorous

Potassium