The blog of Alfa Laval experts driving ZLD innovations and exploring the use of water in industries
Welcome to our blog, where Alfa Laval's team of experts share unique insights in industrial wastewater treatment and water circularity, focusing on Zero Liquid Discharge (ZLD). Our specialists work on developing and optimizing evaporation solutions for water reuse from computer simulations to pilot tests and full-scale industrial systems in close collaboration with customers around the world. We are passionate about making advanced water management solutions more efficient and accessible. Through our work, we help industries apply sustainable treatment technologies, improve resource efficiency and overcome challenges in water management. Welcome!
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Unraveling the mystery of Zero Liquid Discharge: A guide to minimizing risks
Zero Liquid Discharge (ZLD) is revolutionizing the way we manage liquid waste and optimize water recovery in our eco-conscious world. However, this technology comes with its share of risks. Follow our step-by-step risk assessment process to confidently and safely implement ZLD systems in your operations.
November 11, 2025
The thermodynamics of Zero Liquid Discharge: When does ZLD make sense?
In an era of increasing water scarcity and stringent environmental regulations, Zero Liquid Discharge (ZLD) technology is gaining attention as a sustainable solution for industrial water management. But how do we determine when ZLD is the right choice? Interestingly, the first and second laws of thermodynamics offer valuable insights into this decision-making process.
November 11, 2025
Fouling of heat exchangers: an overview
Fouling in heat exchangers is a hidden cost driver—cutting efficiency, raising energy bills, and driving maintenance needs. This in-depth article reveals the key mechanisms behind fouling, why it happens, and most importantly, how to prevent it. Whether you're in operations or engineering, it’s a must-read for boosting performance and cutting costs.
June 17, 2025
Welcome to the ZLD Space-Time Lab
Ever wondered what really happens when bold innovation meets the gritty reality of industrial systems? Meet Patrick—one of Alfa Laval’s ZLD experts and challengers, and a regular voice on this blog. In this opening post, Patrick sets the stage for what this blog is all about: inviting you into the messy, inspiring, and often surprising space where big ideas are tested, stretched, and transformed into real-world solutions. He also shares why he’s still captivated by Zero Liquid Discharge, despite a rocky first run, and explores how the lessons hidden in failure can often pave the way for breakthrough success. Welcome to the ZLD Space-Time Lab: where problems are respected, collaboration is key, and innovation thrives between imagination and reality.
What is Zero Liquid Discharge?
Zero Liquid Discharge (ZLD) is an innovative technology equipped to minimize industrial water waste. It enables a circular flow of water, allowing it to be reused multiple times within the same process. The benefits of using a Zero Liquid Discharge system include reduced water pollution, as it prevents harmful pollutants from being discharged into natural water bodies. It also reduces waste volume, minimizing the amount of waste that needs to be managed and disposed of. Additionally, ZLD systems lower fresh water intake by recycling and reusing wastewater, leading to significant cost savings over time. Furthermore, these systems allow for the recovery of valuable by-products from wastewater, which can be reused or sold.