(don't) Waste Water! | Water Tech to Solve the World artwork

Natural Sciences · Antoine Walter

(don't) Waste Water! | Water Tech to Solve the World

by Antoine Walter

❓ Ever wondered how the #WaterIndustry was reacting to our World's Water Challenges? Water Scarcity? #SDG6? PFAS? Climate Change? Circular Economy? Digitization and Smart Water? 💪 Get the Water Market pulse for free. In one hour per week, while you do the dishes! 📈 We talk water investment, water tech, water entrepreneurship and water market with entrepreneurs, thought leaders, book authors, scientists, investment funds, VCs, and C-Level experts from water majors. ➡️ Leverage their insights, advice & experience and ensure to stay on top of best practices 🗓️ Tune in every Wednesday (don't miss out! 😅) 🌐 Find all the detailed episode notes, interviews, infographics, and more at http://dww.show Currently in its 10th Season, the "(don't) Waste Water" podcast has already welcomed around 250 guests from Water Majors (SUEZ, Veolia, Jacobs, Xylem, Kemira, Evoqua, Aquatech, SKion Water...), Scale-Ups (Cambrian Innovation, Epic Cleantec, Gradiant, Liqtech, 374Water, Gingko Bioworks...), Start-Ups (Puraffinity, KETOS, 120Water, ZwitterCo, Membrion, Source...), Universities (Berkeley, the Columbia Water Center), Investment Funds (Sciens Water, Mazarine, Burnt Island Ventures...), Business Accelerators (Imagine H2O, Elemental...), Book Authors (Seth Siegel, David Sedlak, David Lloyd Owen...) or Market Intelligence Companies (BlueTech Research, Global Water Intelligence, World Bank, OECD, Isle Utilities...). Or simply water legends like Gary White, Mina Guli or Andrew Benedek! On the "(don't) Waste Water" podcast, I strive to make the Water Industry easy to understand for everyone, starting with water professionals, executives, and investors. Hence, he opens the microphone to seasoned, inspirational water experts to discuss their field of excellence. No one can claim an all-around in-depth understanding of a matter as complex as Water. But piece by piece, you can rebuild the puzzle. With curiosity, patience, and passion, Antoine Walter explores topics such as Advanced Treatment Technologies, Water-Energy Nexus (Hydrogen, Lithium...), PFAS removal, Nature-Based Solutions, Wastewater Reuse, Distributed Water Treatments, Water Finance, and Water Entrepreneurship. I actually firmly believe that regular listeners of the "(don't) Waste Water" podcast may, in the end, claim a "Water MBA!" A particular field of interest is how innovation forms, grows and gets widely adopted in a complex and conservative field like the Water Industry. This may be one of the keys to achieving the United Nations Sustainable Development Goal n°6 - #SDG6. Oh, and in short, about me: I'm a water engineer turned avid student of the water business, market, finance, and tech. I'm married, a happy father of three, and I'm French (nobody's perfect 😅). Hosted on Ausha. See ausha.co/privacy-policy for more information.

Latest episodes

Showing 20 · updated from the feed

So, Thermal Desalination is the Future Now? (w. Willian Janssen - Desolenator)

Thermal desalination lost the water industry to reverse osmosis on one number: boiling seawater takes about ten times more energy than pushing it through a membrane. So w

Aug 8
49 min

3 Days at the Glastonbury of Water (Northumbrian Water Innovation Festival 2026)

FREE TOOL ➡️ Get your water tech pitch reviewed: https://app.leviathandata.io/pitch-deck-analyzer More #water insights? Connect with me on Linkedin: https://www.linkedin

Aug 1
31 min

The Water VC You Can't Name (How HG Ventures Deployed $48,523,663 in Water Tech)

How did HG Ventures quietly become one of the most active water tech investors on the planet, without even calling itself a water VC? HG Ventures is the corporate ventur

Jun 3
1 h 01 min

600 Private Water Bets - Zero Public Exits. Is This Sector About to Crack? (and will Gradiant IPO?)

The First Water Sector Unicorn Wants to IPO. But Wall Street kinda forgot how to buy water... Early-stage water tech funding quadrupled in seven years. Private equity's

May 28
1 h 17 min

Guess Who Just Spent $700M on Water? (10 Things Investors Missed) - CRH acquires Axius Water from KKR and XPV Water Partners

On April 30, 2026, CRH plc (NYSE: CRH) announced a $700 million agreement to acquire Axius Water from KKR and XPV Water Partners - instantly making the Irish-American bui

May 4
46 min

Your Cup of Coffee Uses 29,600x More Water Than a ChatGPT Prompt (w. Alex Passini) [2/2]

Everyone says AI is drinking the planet dry, right? Well, the numbers say your morning coffee uses 29,600× more water than a ChatGPT prompt! In this episode, I sit down

May 1
53 min

Nobody Asked What the Public Actually Thinks About AI and Water. So I Did. [1/2]

Every analyst, every think tank, every consulting deck has an opinion on AI's water footprint (and overall on AI and Water) But nobody bothered to ask the people actuall

May 1
14 min

The 2027 Deadline That's About to Reprice Water Companies (Data Center Water)

Who Buys the First Data Center Water Company? And When Does the Repricing Start? Data center water treatment is a $1.1 billion market growing nearly 15% per year, with

Apr 22
29 min

Data Center Consumption DOESN'T Matter... But Discharge Does! (AI Water Footprint)

What Is the Real Water Problem Behind AI Data Centers - and Where Is the $1.3 Billion Opportunity? AI Water seems to concern everybody, while data center water treatmen

Apr 15
26 min

Why a Broke Football Club Spent Millions on Water (Gucci's Water Reuse Strategy)

Why Did a Broke Football Club Owned by Gucci's Family Invest Millions in Water Reuse? Stade Rennais, the French football club owned by the Pinault family behind Kering

Apr 8
16 min

By 2050, Clean Water Will Cost You $3'700 a Year (I Recalculated the US EPA Numbers)

How Much Does The USA Really Need to Fix Its Water Infrastructure? And Why Is Nobody Talking About the Real Number? (Hint: the US EPA has it wrong!) I built a bottom-up

Apr 1
34 min

Forget Russia & Qatar: Europe has a New Gas Source (spoiler: it's wastewater biogas)

Can Europe's Sewage Plants Replace Russian Gas? (aka: the €1.9 Billion Biomethane Opportunity) Europe's wastewater treatment plants are sitting on a massive untapped en

Mar 27
26 min

His First Two Inventions Made Billions - Number Three Just Went Live

How Did Pierre Côté Build Two Unicorn Water Technologies - and Why Is He Now Betting on Algae? Pierre Côté is arguably the most successful water technology inventor ali

Mar 21
33 min

This French Lab Wants to Replace Every Pump in Desalination (ilion Water Technologies)

Can 4 Volts of Electricity Replace 60 Bars of Pressure in Seawater Desalination? ilion Water Technologies is a 2025 spinout from the Physics Laboratory of the École Nor

Mar 16
35 min

Why Water Testing Methods Are Dangerously Outdated (w. Lorenzo Falzarano - Orb)

Why Are Water Testing Methods Dangerously Outdated - And What's the Fix? Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I built

Jan 14
1 h 10 min

25 Years of Acquisitions Built This Water Tech Powerhouse [M&A]

How Did H2O Innovation Build a Water Empire Through 18+ Acquisitions (M&A)? Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I bui

Dec 24 2025
1 h 04 min

The Future of Water Tech VC: Why Specialists Are Finally Emerging.

How is Cycle H2O (a new Water VC) De-Risking Early Stage Water Tech Investment? 🤫 Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"

Dec 17 2025
59 min

Would You Gift Sewage for Christmas?

What Wastewater Products Can You Actually Buy for Christmas? 🤫 Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I built the fix.

Dec 3 2025
33 min

Ovivo's Bold Vision: Back to Full Size in One Decade!

How Will Ovivo Rebuild to Full Size in 10 Years After the Ecolab Deal? 🤫 Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I built

Nov 26 2025
1 h 03 min

What Happens When You Build a Water Membranes Factory Just to Prove a Point?

How Is Aqua Membranes Scaling 3D-Printed Water Membranes Spacers from Garage Startup to 200,000 Square Foot Manufacturing Facility? Let's find out! 🤫 Tired of stitching

Nov 20 2025
28 min

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