SLOW SAND FILTER | Natural Water Purification System for Drinking Water Treatment

Description

Slow Sand Filter is a traditional yet highly effective water purification system designed to remove suspended solids, pathogens, and organic matter from raw water using natural biological and physical filtration processes. It operates without chemicals, making it an ideal model for public health education, environmental studies, and water treatment demonstrations.
Widely used in environmental science laboratories, public health departments, medical colleges, engineering institutes, and rural water supply studies.
✅ Key Features
💧 Natural Biological Filtration Process
Utilizes a biologically active layer (Schmutzdecke) on the sand surface
Effectively removes bacteria, protozoa, algae, and organic impurities
Demonstrates eco-friendly water purification without chemicals
🪨 Multi-Layer Filtration Media
Top layer of fine sand for effective filtration
Supporting layers of gravel for drainage and flow regulation
Ensures uniform filtration and consistent water quality
⚙ Slow & Controlled Filtration Rate
Low filtration rate for high purification efficiency
Improves pathogen removal through extended contact time
Ideal for demonstrating principles of slow sand filtration
🧱 Robust & Educational Model Design
Constructed with durable glass / acrylic / metal body (model dependent)
Transparent design allows clear observation of filtration layers
Suitable for repeated classroom and laboratory demonstrations
🛡 Safe, Chemical-Free Operation
No need for coagulants or disinfectants
Low maintenance and energy-free operation
Environmentally sustainable water treatment method
📊 Typical Applications
Demonstration of slow sand filtration process
Water purification studies in public health
Environmental engineering practicals
Rural and community water supply education
Teaching microbiological water treatment concepts
💡 Why Choose This Slow Sand Filter?
Demonstrates natural and sustainable water purification
Excellent teaching aid for environmental & public health studies
Simple operation with high educational value
Durable design for long-term institutional use