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Nephrol. Dial. Transplant. · Jun 2015
Eco-dialysis: the financial and ecological costs of dialysis waste products: is a 'cradle-to-cradle' model feasible for planet-friendly haemodialysis waste management?
- Giorgina Barbara Piccoli, Marta Nazha, Martina Ferraresi, Federica Neve Vigotti, Amina Pereno, and Silvia Barbero.
- Nefrologia, Scienze Mediche e Biologiche, ASOU San Luigi Gonzaga, Orbassano, Torino, Italy gbpiccoli@yahoo.it.
- Nephrol. Dial. Transplant. 2015 Jun 1;30(6):1018-27.
BackgroundApproximately 2 million chronic haemodialysis patients produce over 2,000,000 tons of waste per year that includes about 600,000 tons of potentially hazardous waste. The aim of the present study was to analyse the characteristics of the waste that is produced through chronic haemodialysis in an effort to identify strategies to reduce its environmental and financial impact.MethodsThe study included three dialysis machines and disposables for bicarbonate dialysis, haemodiafiltration (HFR) and lactate dialysis. Hazardous waste is defined as waste that comes into contact with bodily fluids. The weight and cost of waste management was evaluated by various policies of differentiation, ranging from a careful-optimal differentiation to a careless one. The amount of time needed for optimal management was recorded in 30 dialysis sessions. Non-hazardous materials were assessed for potential recycling.ResultsThe amount of plastic waste that is produced per dialysis session ranges from 1.5 to 8 kg (from 1.1 to 8 kg of potentially hazardous waste), depending upon the type of dialysis machine and supplies, differentiation and emptying policies. The financial cost of waste disposal is high, and is mainly related to hazardous waste disposal, with costs ranging from 2.2 to 16 Euro per session (2.7-21 USD) depending on the waste management policy. The average amount of time needed for careful, optimal differentiation disposal is approximately 1 minute for a haemodialysis session and 2 minutes for HFR. The ecological cost is likewise high: less than one-third of non-hazardous waste (23-28%) is potentially recyclable, while the use of different types of plastic, glues, inks and labels prevents the remaining materials from being recycled.ConclusionAcknowledging the problem of waste management in dialysis could lead to savings of hundreds of millions of Dollars and to the reuse and recycling of hundreds of tons of plastic waste per year on a world-wide scale with considerable financial and ecological savings.© The Author 2015. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved.
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