Zero waste economy (Zero Waste)

What is the zero waste economy?

The zero waste economy describes a production and consumption model designed to keep material resources in use, retaining their functional value for as long as possible. Instead of treating waste as an inevitable by-product, this approach views materials as resources that should be reincorporated into the productive cycle, so that, as far as possible, nothing is sent to landfill or incineration without recovery.

Origins and evolution of the concept

The term gained traction from the work of chemist Paul Palmer, who used 'Zero Waste' in California from the 1970s in the context of recovering chemical products, although the underlying ideas connect with the principles of the circular economy developed by authors such as Walter R. Stahel. Over the following decades, the concept evolved from a focus on industrial materials to a broad framework covering product design, consumption and municipal waste management.

Economic and competitive benefits

Adopting zero waste strategies can deliver tangible business value, although the size of the benefit varies widely by sector and context:

• Cost savings: replacing virgin raw materials with recovered or secondary materials can reduce purchasing and disposal costs.
• Reduced regulatory and price risk: lower exposure to landfill taxes and to volatile commodity prices.
• Brand and reputation: credible waste reduction supports relationships with customers, investors and regulators.

These advantages depend on robust measurement: claims should always be backed by verifiable data rather than generic percentages.

Regulatory framework in Spain and the EU

In Spain, Law 7/2022 of 8 April on waste and contaminated soil for a circular economy sets reuse and recycling targets aligned with EU Directive (EU) 2018/851, which amended the Waste Framework Directive (2008/98/EC). National waste planning, through the State Framework Waste Management Plan (PEMAR), establishes objectives and indicators to track progress towards reducing landfilling. Voluntary schemes such as 'Zero Waste to Landfill' certification and the B Corp certification are increasingly used by companies to demonstrate commitment.

How to implement a zero waste model step by step

The path towards zero waste usually begins with a detailed audit of input and output flows. Based on the results, production processes are redesigned to eliminate materials that are hard to recycle, and single-use packaging is replaced with reusable alternatives wherever possible.

Working with authorised waste managers helps identify high-value recovery routes, such as the production of secondary raw materials. Tracking indicators, for example the landfill diversion rate, the cost per tonne of waste avoided and equivalent emissions, supports data-driven decisions.

Key performance indicators (KPIs)

Among the most commonly used parameters are the landfill diversion rate, the Material Circularity Indicator (MCI) and waste intensity per unit of product. These metrics make it possible to compare performance over time and across sites.

A zero waste economy: an opportunity for companies

The zero waste economy combines environmental rigour with profitability. Its adoption in Spain and across Europe is being driven by regulatory pressure, consumer demand and the search for resource efficiency. Organisations that integrate its principles proactively can build durable competitive advantages. At Manglai we help companies measure their carbon footprint and prepare their sustainability reporting, including waste and circularity metrics. Discover how Manglai can help you.