Description
The “Water Purification” (50x70 cm) educational chart clearly illustrates key steps and major methods used to convert contaminated or unsafe water into clean, safe water for drinking and daily use, making it ideal for science classrooms, awareness programs, and educational campaigns.
Chart Features
Size: 50x70 cm, multicolor, and often laminated with English, Hindi, or bilingual labeling for wide accessibility.
Shows key water purification methods and their sequential flow:
Coagulation/Flocculation: Chemicals are added to water to cause suspended particles to clump together (form flocs) for easier removal.
Sedimentation: The water sits undisturbed so that heavy flocs settle to the bottom for removal.
Filtration: Water passes through layers of sand, gravel, charcoal, or modern membranes to remove particulate impurities.
Disinfection: Final elimination of harmful microorganisms using methods such as boiling, chlorination, ultraviolet (UV) treatment, or ozonation.
Additional household or alternative purification methods: simple boiling, bio-sand filtration, commercial filters (RO, UV), solar disinfection, and chemical tablets.
Each method is illustrated with process diagrams, example setups (water filter models, RO/UV units), and brief text or icons indicating purpose and effectiveness.
Educational Value
Helps students and community members visually understand the full sequence of water purification and the importance of each stage for public health.
Teaches low-cost, practical options such as boiling and filtration for home settings, along with the science behind advanced technologies.
Supports lessons on sanitation, hygiene, environmental studies, and life skills, and is essential for schools, NGOs, and health campaigns.
Overall, this poster is a concise and practical visual summary of water purification essentials, empowering learners to understand and apply safe water treatment methods.