Solid Waste Management, Slides of Environmental science

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SOLID WASTE

MANAGEMENT &

HAZARDOUS WASTE

Presented by: GROUP 3

WASTE MANAGEMENT

The process of collecting, transporting, processing, recycling, and disposing of waste materials in a way that reduces harm to human health and the environment. HAZARDOUS WASTE Waste that poses a substantial danger to human health or the environment because it is toxic, flammable, corrosive, or reactive.

1. LANDFILL DISPOSAL Dumping waste in a designated area (sanitary landfill) where it is buried and managed. EXAMPLES: Household garbage (food wrappers, plastics) collected by garbage trucks and disposed of in landfills.

2. RECYCLING Converting waste materials into new, usable products. EXAMPLES: Household garbage (food wrappers, plastics) collected by garbage trucks and disposed of in landfills.

4. INCINERATION Incineration is the process of burning waste materials at high temperatures until they turn into ash, flue gas, and heat. It's a form of thermal treatment often used in waste management. EXAMPLES: Hospital waste (like contaminated bandages and syringes) incinerated to prevent infections.

5. WASTE-TO-ENERGY (WTE)

Process of generating electricity or heat by burning waste. EXAMPLES: Power plants that burn municipal solid waste to produce electricity.

TYPES OF

HAZARDOUS

WASTE

1. TOXIC WASTE Waste that can cause poisoning or serious health effects when inhaled, ingested, or absorbed. EXAMPLES: Pesticides, mercury from broken thermometers, lead- based paints.

3. CORROSIVE WASTE Waste that can destroy or damage materials and living tissue through chemical reactions. EXAMPLES: Strong acids (sulfuric acid from car batteries), strong bases (sodium hydroxide from cleaning agents)..

4. REACTIVE WASTE Waste that is unstable and can explode, release toxic gases, or undergo violent reactions. EXAMPLES: Old or unstable explosives, peroxides, cyanide-containing chemicals.

GROUP ACTIVIT! “SLOGAN WRITING” Each group will create impactful slogan promoting Waste Management using creative lettering style.

• Write it in A4 size Vellum Paper
• Deadline: October 24, 2025 (Friday)

CRITERIA FOR JUDGING “SLOGAN WRITING” Criteria Description Points

1. Relevance to Theme  The slogan clearly talks about waste, recycling, or caring for the environment. **30%

2. Clarity and Simplicity**  The words are easy to understand and suitable for all ages. **15%
3. Creativity**  The slogan is original, catchy, and makes people think. **25%
4. Impact**  The message is strong and encourages action or awareness. **15%
5. Grammar and Spelling**  The slogan uses correct spelling and grammar. 15% Total 100%