Waste companies turn to robots amid staffing challenges
Waste companies turn to robots as a solution to staffing challenges in the recycling industry. At a busy recycling plant in Rainham, east London, owned by the Sharp Group, humanoid robots are being introduced to assist with waste sorting. The facility processes up to 280,000 tonnes of mixed recycling annually, employing 24 agency workers who work on rapid conveyor belts in a demanding and hazardous environment.
Challenges in the waste sorting industry
The recycling sector faces significant difficulties in retaining staff due to the unpleasant and hazardous nature of the work. Work-related injury and ill-health rates in the sector are 45% higher than in other industries, and the fatality rate is considerably above the national average. The high physical demands and continuous pace of the work contribute to an annual staff turnover rate of 40%. Line supervisor Ken Dordoy noted that many workers are unable to keep up with the fast-moving conveyor belts, requiring frequent rotation and breaks.
Introduction of humanoid robots in waste sorting
To address these challenges, the Sharp Group is testing a humanoid robot named Alpha (Automated Litter Processing Humanoid Assistant). Built by RealMan Robotics in China and adapted for recycling operations by British firm TeknTrash Robotics, Alpha is designed to mimic human movements. This approach allows the robot to integrate into existing plants without the need for redesigning machinery.
Alpha is currently in a training phase, where it is guided through arm movements and learns to identify and pick items from the conveyor belt. A plant worker uses a virtual reality headset to demonstrate successful picking techniques, while a system called HoloLab collects data from multiple cameras to train the robot. This process generates millions of data points daily, helping improve the robot’s accuracy and efficiency over time.
Benefits and industry perspectives on automation
Chelsea Sharp, plant finance director and granddaughter of the company founder, highlighted the advantages of using humanoid robots. Unlike human workers, robots can operate continuously without breaks, holidays, or sick days, potentially improving productivity and safety.
Other companies in the sector are also advancing automation technologies. Colorado-based AMP uses AI and air jets to sort materials efficiently, while California-based Glacier employs robotic arms and AI to handle the variability of waste, including hazardous items. Both companies emphasize that AI-driven automation significantly increases sorting speed, capacity, and accuracy compared to human workers.
Experts agree that the human-intensive model in waste processing is no longer sustainable. Professor Marian Chertow of Yale University stated that robotics combined with AI vision systems offer the best potential for improving material recovery, worker experience, and economic competitiveness in recycling.
At the Sharp Group’s plant, the working conditions remain challenging due to dust, noise, and physical demands. However, the company plans to upskill its workforce to maintain and oversee the robots, moving employees away from hazardous tasks and improving their work environment.