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🤖 "How to Save over 1 Million Tons of CO2 every Year with Thermal Hydrolysis"

(don't) Waste Water!

Photo by Sigmund / Unsplash

Table of Contents

Host: Antoine Walter
Guest: Eirik Fadnes | CEO | Cambi Group
Category: 🤖 Technology | Thermal Hydrolysis

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Podcast’s Essential Bites:

[5:49] “Cambi delivers a unique and disruptive technology to the water and waste sector, advancing the circular economy by ensuring full hydrolysis and maximum resource recovery, mainly from the treatment of sludge from wastewater treatment plants, but also difficult to treat organic waste. […] In many cities they use our solution to make treatment cheaper and more sustainable.”

[10:40] “Sewage sludge […] is an amazing bioresource. Both the biogas that you can generate, but also the biosolids, which is increasingly perceived as a valuable resource for water companies and local communities. We operate globally and we can certainly see a change in perception. […] An example of that is the national mission for clean Ganga in India, where they’re looking at not only sanitation but also a biosolids master plan.”

[12:28] “Essentially [thermal hydrolysis] is a giant pressure cooker. So sewage sludge from the wastewater treatment plant is first dewatered, […] it is pre-heated using recycled steam. And from the preheater the warm sludge is processed through a pressure vessel, where it’s mixed with steam until you get a temperature of 160 degrees […]. And at the end of the cycle you have a certain pressure drop down to atmospheric pressure which disintegrates the cells and reducing the sludge viscosity and making the feedstock very suitable for anaerobic digestion. So you get the increased biogas production up to 40% and you get half the volume of the biosolids compared to conventional methods.

[15:18] “I am very encouraged to see the pace at which water and wastewater utilities are adopting net zero setting and net zero pledges, carbon, or climate targets. And I believe at the moment there’s around 80 utilities that set such targets that are serving 230 million people. And the number of utilities are growing.”

Rating: 💧💧

🎙️ Full Episode: Apple | Spotify | Google
🕰️ 37 min | 🗓️ 06/22/2022
✅ Time saved: 36 min

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