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How Heathrow Unlocked a 75% Waste Contamination Reduction With the Ameru AI-Powered Waste Sorting Bin

A case study resulting in a 75% contamination reduction and €94.07/ton potential savings

Kiril Gantchev
Kiril Gantchev

📅 July 7 - August 11, 2025
📍 Heathrow Compass Centre, London
🤝 Executed in Partnership With Heathrow, Grundon, PEL, and Ameru

Executive Summary

Before Ameru Smart Bin, Heathrow's Compass Centre faced a challenge common in high-traffic food service environments. Their traditional waste sorting system resulted in 80% contamination of recyclables and 20% of valuable materials being incorrectly disposed of as general waste, leading to unnecessary WtE costs and missed sustainability goals.


🎯 The Challenge

Heathrow Airport's Compass Centre restaurant faced several critical waste management challenges typical of busy food service operations:

€94.07Cost Savings per Ton (64.5% reduction)
+43.9%Increase in Recycling Rate
75%Contamination Reduction
183 kgCO₂e Saved per Ton
1Cars Saved per 10 Tons (annual equivalent)
  • High Contamination Rates: 80% of materials in recycling bins were contaminated with non-recyclable items like tissues, coffee cups, and food containers
  • Value Leakage: 20% of valuable recyclables (PET bottles, reusable cups) were incorrectly disposed of in general waste, incurring unnecessary WtE costs
  • User Confusion: Staff struggled to make correct sorting decisions in fast-paced environments
  • Limited Visibility: No data on what specific materials were being disposed of, making it impossible to identify reduction opportunities
  • Sustainability Goals: Difficulty meeting ambitious environmental targets with traditional sorting methods

💡 The Solution

Ameru's AI-powered Smart Bin was deployed at the Compass Centre to automatically sort waste using computer vision, object recognition, and robotics. The system was configured to sort materials into four streams:

  1. 📄 Paper and Card
  2. 🍾 PET Bottles
  3. ♻️ Dry Mixed Recycling
  4. 🗑️ General Waste

How It Works

  • Computer Vision: Machine learning algorithms classify materials with high accuracy
  • Automatic Sorting: Robotics direct items to the correct internal compartment
  • Data Capture: Every item is logged, providing detailed waste composition analytics
  • User-Friendly: Simply place item on receptacle, the bin does the rest

🔑 Key Features

🤖 AI-Powered Recognition

Computer vision identifies every individual item in real-time, automatically sorting waste into the correct stream.

📊 Waste Analytics Dashboard

Comprehensive dashboard tracks contamination rates, value leakage, and identifies materials for elimination.

🎯 4-Stream Sorting

Custom configured in the following streams: Paper & Card, Plastic Bottles, Dry Mixed Recycling, and General Waste. All automatically separated.

⚡ Quick Deployment

Fully operational within days, with continuous learning through supervised AI training.

🔧 Smart Maintenance

Automated service notifications and AI-based stuck waste detection prevent downtime.

✅ Zero User Burden

Staff and passengers simply drop items—the AI handles all sorting decisions.


📊 Results: Before & After

Before Ameru (Traditional Bins)

StreamWeight (g)%1t (€)10t (€)
📄 Paper/Card00.00%0.000.00
🍾 PET bottles00.0%0.000.00
♻️ DMR (clean)737.2%-4.95-49.50
⚠️ DMR contamination28928.3%-42.98-429.79
🗑️ GW accepted52951.9%-78.67-786.71
💔 GW value loss12912.6%-19.18-191.84
Total1020100.0%-145.78-1457.80

After Ameru (Smart Bin)

StreamWeight (g)%1t (€)10t (€)
📄 Paper/Card565.0%3.3833.80
🍾 PET bottles41436.9%25.52255.19
♻️ DMR (clean)102.49.1%-6.31-63.12
⚠️ DMR contamination25.62.3%-3.46-34.61
🗑️ GW accepted50044.6%-67.60-675.98
💔 GW value loss242.1%-3.24-32.45
Total1122100.0%-51.71-517.10

Before Ameru Financial Waste Costs

Sankey Chart - Before Ameru

After Ameru Financial Impact

Sankey Chart - After Ameru

Tangible Results

77%Reduction in Value Leakage
75%Reduction in Recycling Contamination
100%Clean Paper and Card Capture Rate
100%Clean PET Bottle Capture Rate
+43.9%Increase in Overall Recycling Rate
183 kgCO₂e Saved per Ton of Waste Processed
1Cars Removed from Road per 10 Tons (annual equivalent)

The User Experience

User Satisfaction Metrics

  • 70% found it "Very Easy" from first use
  • 90% said it made recycling more effective
  • 80% prefer automatic sorting over education-only approaches

Staff described the Ameru Smart Bin as:

EasySmartFunInnovativeQuickExcitingInteresting

User Testimonials


"LOVED the bin, great way to make recycling fun and interactive as well as ensuring the waste gets properly recycled. Would be great to have some passenger-facing bins as well in the terminals."

— Heathrow Compass Centre Staff Member A


"I was really impressed with the bin the first time I used it and went home telling my family about how impressed I was with it and how quick it was."

— Heathrow Compass Centre Staff Member B


"More of them and bring it back!"

— Heathrow Compass Centre Staff Member C


Material Processing Rates

Understanding the financial impact: revenue (rebates) vs. costs

StreamRate (€/ton)
📄 Paper (standalone)€77.80
📦 Card (standalone)€57.63
📦 Paper/Card (blended)€67.72
🍾 PET Bottles€69.16
♻️ DMR (clean)€-69.16
🗑️ General Waste€-151.69

Note: Positive values represent revenue (rebates), negative values represent costs. Ameru Smart Bin combines paper and cardboard into a single stream using the blended rate.

Key Takeaways

  • Proven Impact: 75% reduction in contamination and 77% reduction in value leakage within 5 weeks
  • Financial Benefits: €94.07 cost savings per ton through improved sorting and material recovery
  • User Acceptance: 90% of users found the system made recycling more effective
  • Data-Driven Insights: Computer vision captures every item, enabling precise waste composition analysis
  • Scalability: Staff feedback strongly supports wider deployment across terminals
  • Continuous Improvement: AI system learns and adapts through supervised learning
  • Recycling Performance: 100% clean PET capture and 100% clean paper/card separation

Get Started Today


Ready to contribute to a more sustainable future with Ameru? Contact us to see how our products can revolutionize your waste management and help you meet your sustainability goals.