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

Antoine Walter

English Natural Sciences Science Technology

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Episodes 502

Avg. Duration 39m

Activity Active

Apple Rating ★ 4.8 (12)

Since Jun 2020

Latest Episode Jun 2026

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Schedule

Weekly

Format

Episodic

Consistency

18%

Hosting

feed.ausha.co

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About This Podcast

❓ 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.

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Recent Episodes

S14E12 The Water VC You Can't Name (How HG Ventures Deployed $48,523,663 in Water Tech)

Jun 03, 2026 1h 1m

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 venture capital arm of The Heritage…

S14E11 600 Private Water Bets - Zero Public Exits. Is This Sector About to Crack? (and will Gradiant IPO?)

May 28, 2026 1h 17m

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 share of water M&A…

S14E10 Guess Who Just Spent $700M on Water? (10 Things Investors Missed) - CRH acquires Axius Water from KKR and XPV Water Partners

May 04, 2026 46m

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 building materials giant one of…

S14E9 Your Cup of Coffee Uses 29,600x More Water Than a ChatGPT Prompt (w. Alex Passini) [2/2]

May 01, 2026 53m

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 with Alex Passini to…

S14E8 Nobody Asked What the Public Actually Thinks About AI and Water. So I Did. [1/2]

May 01, 2026 14m

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 actually watching the videos, posting…

S14E7 The 2027 Deadline That's About to Reprice Water Companies (Data Center Water)

Apr 22, 2026 29m

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 60% of spending recurring -…

S14E6 Data Center Consumption DOESN'T Matter... But Discharge Does! (AI Water Footprint)

Apr 15, 2026 26m

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 treatment is the fastest-growing…

S14E5 Why a Broke Football Club Spent Millions on Water (Gucci's Water Reuse Strategy)

Apr 08, 2026 16m

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 (Gucci, Balenciaga, Bottega…

S14E4 By 2050, Clean Water Will Cost You $3'700 a Year (I Recalculated the US EPA Numbers)

Apr 01, 2026 34m

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 predictive model spanning 32…

S14E3 Forget Russia & Qatar: Europe has a New Gas Source (spoiler: it's wastewater biogas)

Mar 27, 2026 26m

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 energy reserve. With the right…

S14E2 His First Two Inventions Made Billions - Number Three Just Went Live

Mar 21, 2026 33m

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 alive. With over 100 patents…

S14E1 This French Lab Wants to Replace Every Pump in Desalination (ilion Water Technologies)

Mar 16, 2026 35m

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 Normale Supérieure in Paris.…

S13E21 Why Water Testing Methods Are Dangerously Outdated (w. Lorenzo Falzarano - Orb)

Jan 14, 2026 1h 10m

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 the fix. 50 Founder Seats.…

S13E20 25 Years of Acquisitions Built This Water Tech Powerhouse [M&A]

Dec 24, 2025 1h 4m

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 built the fix. 50 Founder…

S13E19 The Future of Water Tech VC: Why Specialists Are Finally Emerging.

Dec 17, 2025 59m

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"? I built the fix. 50 Founder…

S13E18 Would You Gift Sewage for Christmas?

Dec 03, 2025 33m

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. 50 Founder Seats. Join the…

S13E17 Ovivo's Bold Vision: Back to Full Size in One Decade!

Nov 26, 2025 1h 3m

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 the fix. 50 Founder Seats.…

S13E16 What Happens When You Build a Water Membranes Factory Just to Prove a Point?

Nov 20, 2025 28m

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 together Crunchbase, overpriced…

S13 The Most Ridiculous Water Technology I've Ever Analyzed (it was worth it!)

Nov 12, 2025 36m Bonus

Can Cloud Harvesting Revolutionize Water Production? A Deep Dive into AirHES Technology🤫 Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I built the fix. 50…

S13E15 What Does a Billion-Dollar Company Exit Really Look Like?

Oct 29, 2025 51m

How Does Water-as-a-Service Drive Billion-Dollar Exits in Infrastructure Investment?🤫 Tired of stitching together Crunchbase, overpriced reports, and "a guy who knows a guy"? I built the fix. 50…

Frequently Asked Questions

How many episodes does (don't) Waste Water! | Water Tech to Solve the World have?

(don't) Waste Water! | Water Tech to Solve the World has published 502 episodes since June 2020, covering topics in Natural Sciences, Science.

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(don't) Waste Water! | Water Tech to Solve the World is currently active with new episodes weekly. Average episode length is 39m.

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