Societal Project Proposal

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Title

From Trash to Treatment: Designing Floating Rafts from Waste Materials for Lake Conservation

CSIR-National Environmental Engineering Research Institute

Introduction

Water Pollution Crisis:

Lakes are threatened by agricultural runoff, industrial waste, and untreated sewage, leading to ecosystem deterioration and harmful algal blooms.

Need for Innovative Treatment:

Conventional Methods:�Existing water treatment solutions are often costly, energy-intensive, and inaccessible in rural areas.

Sustainable Alternatives:

Growing interest in natural, low-cost methods like Floating Treatment Wetlands (FTWs) to mitigate water pollution using plants.

Waste Management Issues:

Mounting Global Waste:

The world faces increasing waste problems with plastics and tires Opportunity for Innovation:

Repurposing waste materials into floating rafts offers waste management and environmental benefits.

Base Structure:

Composed of buoyant materials like plastic bottles or tires that provide flotation. Framework:�Reinforced with metal or PVC pipes for stability and structural integrity.

Vegetation:�Aquatic plants that filter pollutants and enhance biodiversity.

Anchoring System:

Ropes or weights that secure the raft in place against currents.

Water Filtration System:

Biofilters or perforated containers that enhance water purification.

Monitoring Equipment:

Sensors to track water quality and environmental conditions.

Floating Raft

Waste Material for Floating Rafts

Plastic Can

Waste Tyre

Plastic Bottle

Plastic Foam

Used Bamboo

Wooden Plank

Expected Outcomes

• Water quality improvement: Floating rafts can help improve water quality by treating wastewater and removing pollutants. The plants in the rafts use nutrients and organic matter in the water to treat it. 

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• Algae reduction: Floating plants can reduce algae by using up nutrients and blocking light from entering the water. 

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• Habitat for fish: The roots of floating plants provide a habitat for fish eggs and protect newborn fish. 

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• Shade: Floating plants can provide shade, which can help prevent algae growth and benefit fish. 

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• Aesthetics: Floating rafts can improve the visual appeal of lakes and ponds. 

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• Cost-Effective Water Treatment: Low-cost alternative to traditional water treatment methods, accessible to communities with limited resources.

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• Design flexibility: Floating rafts can be sized to fit into lakes, ponds, and domestic wastewater drains.

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• Public Awareness and Education: Increased community awareness about water pollution issues and sustainable practices through involvement in raft construction and maintenance

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Thank You