199 episodes

❓ Ever wondered how the #WaterIndustry was reacting to our World's Water Challenges? Water Scarcity? #SDG6? Emerging contaminants? 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!
📈 Get inspired by incredible guests, Water Entrepreneurs, Thought Leaders, Book Authors, Scientists, and Investors
➡️ 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 on http://dww.show

(don't) Waste Water‪!‬ Antoine Walter

    • Science
    • 4.7 • 9 Ratings

❓ Ever wondered how the #WaterIndustry was reacting to our World's Water Challenges? Water Scarcity? #SDG6? Emerging contaminants? 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!
📈 Get inspired by incredible guests, Water Entrepreneurs, Thought Leaders, Book Authors, Scientists, and Investors
➡️ 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 on http://dww.show

    S6E9 - Are your Wastewater Bacteria on Twitter?

    S6E9 - Are your Wastewater Bacteria on Twitter?

    Bacteria can update your calendar!



    As a wastewater operator, you have no control over what comes into your system.



    So regularly, a sudden gap in wastewater's content causes your bacteria to be upset, resulting at best in some drops in treatment efficiency. 



    And at worst, in long-lasting issues, until they recover...



    Indeed, it would incredibly ease up plant operation if bacteria could talk! 

    Well, if you use the right technology, they actually can.



    In a microbial fuel cell, bacteria live on the anode where they break down organic pollution. As a result of this process, they breathe electricity that travels to the cathode.



    So, if you monitor this electrical current closely, you have a 24/7 precise monitoring of your bacteria, turning them into a biosensor.



    That's how they can tell you about effluent changes, upsets, and even predictive maintenance of your hardware.



    And if you equip them with the right piece of software, as MICROrganic Technologies  does, they can even reach out to you in unexpected places.



    Indeed, that's how bacteria can update your calendar!



    🎙️ PODCAST 🎙️



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    • 58 sec
    S6E8 - Deep Ocean can Desalinate Water!

    S6E8 - Deep Ocean can Desalinate Water!

    Deep Ocean can desalinate water.



    To push seawater through a reverse osmosis system, you need to pump it up to a pressure of about 60 bars. 



    That's roughly 20 times more than the pressure we get at the tap, and of course, it gobbles a lot of energy.



    But energy is not the only source of expenses when you operate a desalination system. You also have to cope with the membrane's degradation over time and its clogging under the effect of biofouling.



    That phenomenon is caused by the micro-organisms, which are quite present in the coastal areas where desalination plants place their water intake.



    Now there's a place where you naturally find the 60 bars of pressure you're looking for: that's 600 meters under sea level. And, welcome side-effect, down there, water is of much better quality with much fewer micro-organisms.



    So if you sink your desalination skid at these depths like what Waterise does, you actually kill two birds with one stone. 



    Hence, the Norwegian company expects to reduce desalination's energy requirements by 50% while also reducing the footprint needed on-shore.



    And that's how, indeed, deep ocean can desalinate water!



    🎙️ PODCAST 🎙️



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    • 1 min
    S6E7 - Why would you Burn Wastewater?

    S6E7 - Why would you Burn Wastewater?

    We burn far too much wastewater!



    The industry represents roughly 20% of the World's water abstractions. 



    And sometimes, that water gets exposed to a wide array of complex pollutants, hence transforming into wastewater that's hard to treat.



    What would you do if you were an industrial whose core business and competencies have nothing to do with the treatment of those substances?



    Well, you'd go for the path of least resistance which is, believe it or not, to burn these complex wastewaters. 



    Now, you don't find incinerators for that purpose in every city, so sometimes, on top of burning water which is incredibly inefficient, that water travels distances and takes boats and trucks on the way.



    The thing is that every wastewater has its treatment like Cinderella has her glass slipper!



    You just need dedicated experts for that. That's how companies like Inopsys or Axine turn that treatment into a service, take over the liabilities, make it in a much more sustainable fashion, and often even for cheaper.



    Once you know that, don't you think that we burn too much wastewater?



    Wanna dive deeper into the topic? Here are two interesting follow-ons listens:

    S4E12 with Steven De Laet (the CEO of InOpSys) 

    S4E16 with Jonathan Rhone (the former CEO of Axine) 



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    • 1 min
    S6E6 - The Six Thousand Billion Dollars Challenge

    S6E6 - The Six Thousand Billion Dollars Challenge

    We need to give our pee a second life!



    By 2030, we will miss 40% of the water we need to reach an equilibrium. 



    This means we whether accept our fate and dry out or try to find that missing water in the next decade.



    You don't want to dry out? Me neither, so what can we do?



    Suppose we solve the problem the conventional way. In that case, it will cost the World about two thousand billion dollars to refurbish existing infrastructure and another four thousand billion dollars to build new ones.



    That makes for a six thousand billion dollar bill or about twenty-four Elon Musks.



    To reduce the bill, it's about time to become creative and efficient.



    In our wastewater treatment plants, we clean water up to high environmental standards. And then what do we do? We flush it away!



    With just one more polishing step, that water could be perfectly fit for a wide variety of purposes, from industrial applications to irrigation.



    Used right, wastewater reuse could cover 10% of the World's water needs, which would already solve a significant portion of the problem!



    See, we need to give our pee a second life!



    Wanna dive deeper into the topic? Check out my live show with Vincent Caillaud, CEO of Veolia Water Technologies, and Reinhard Hübner, CEO of SKion Water! 



    🎙️ PODCAST 🎙️



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    • 1 min
    S6E5 - The Epic 3-Step Process that Boosts Activated Sludge

    S6E5 - The Epic 3-Step Process that Boosts Activated Sludge

    I'll kill them all



    Wait, don't worry, that's good news!



    What we call wastewater sludge is, in fact, a concentration of microbial cell mass. 



    To picture it, imagine a herd of micro-organisms, tired of having eaten a lot of organic matter and resting together in a mud-like aggregate.



    Now, that mud can be valorized and turned both into biosolids you'll transform into fertilizer and biogas that can be used as a one-to-one replacement to fossil methane.



    The problem in both cases is that these micro-organisms don't really want to cooperate spontaneously with you. 



    My Precious!



    As a result, your biogas production yield can be pretty low, and your output matter is still very watery, which involves more hassle to transport it out. 



    That's where thermal hydrolysis jumps in for the save! It takes the sludge through a 3-step process where you heat it, then pressurize it and suddenly depressurize it.



    Our rebellious micro-organisms don't appreciate that effort, and as a result, they tend to explode. 



    This frees the carbon and water they held back, increasing the biogas production yield by up to 50% while halving the biosolids volume at the outlet of the sludge digester.



    More energy, better waste, a win-win that will make you say: I'll kill them all!



    Wanna dive deeper into the topic? Check out my full conversation with Eirik Fadnes, the CEO of Cambi - the World Leader in Thermal Hydrolysis Processes 



    🎙️ PODCAST 🎙️



    Website: https://dww.show/podcast/

    Smartlink: https://smartlink.ausha.co/dont-waste-water



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    LinkedIn: https://www.linkedin.com/in/antoinewalter1/

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    • 1 min
    S6E4 - Can this Solve the World's Thirst?

    S6E4 - Can this Solve the World's Thirst?

    Waves can desalinate water!



    About one out of five people living in the Mediterranean area suffer from constant water stress. That's representative of the challenge remote and decentralized places face in the new realm of water scarcity.



    At the same time, the World is urbanizing fast. By 2050, two-thirds of humanity will live in cities, and we will build the equivalent of New York City every month until then to cope with that revolution.



    As a consequence, remote areas will become even less of a priority when it comes to water production and management.



    So to help these communities, you need to solve the following equation. Find a way to desalinate water without large-scale investment and with as little energy impact as possible. 



    Impossible? Not if you leverage nature!



    Addressed right, waves can act as a fuel to pump water through a reverse osmosis process, whether directly or through an energy converter.



    And if several companies develop different variations of this concept, they all have two significant benefits in common. 



    They avoid the carbon emissions a diesel-powered alternative would have generated. And they reduce these remote areas' water stress.



    As you see, waves can desalinate water!



    🎙️ PODCAST 🎙️



    Website: https://dww.show/podcast/

    Smartlink: https://smartlink.ausha.co/dont-waste-water



    👋  SOCIAL MEDIA  👋 



    LinkedIn: https://www.linkedin.com/in/antoinewalter1/

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    Facebook: https://www.facebook.com/DontWasteWaterPodcast

    • 1 min

Customer Reviews

4.7 out of 5
9 Ratings

9 Ratings

C. Mancuso ,

Great show and great host

This podcast has a niche profile among the water podcasts out there by focusing on the innovative people and technologies in the wastewater industry. The topics are always interesting, and the host and guests are top notch. The only drawback I would mention is that sometimes the audio quality is a little spotty. Nonetheless I look forward to a new episode every week.

theaquatero ,

Great host and guests

If you are a water wonk like me, then you should not miss this podcast. Antoine is an insightful interviewer who is always well prepared to ask the right questions. His style keeps episodes both educational and fun!

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