ABOUT THIS EPISODE
Next in the "Can Plasma?" series: I just got a hot tub and it smells like bleach. Can plasma replace it? Same job, different chemistry. Let's talk about where plasma already competes with bleach and where bleach still wins on cost.
⏱️ Chapters
00:00 The question, from my new hot tub
00:09 The devil is in the details
00:12 Three points: same job different chemistry, where plasma competes, where bleach wins
00:31 My hot tub uses a slow-release sodium hypochlorite bubble (I call all chlorine products bleach)
00:59 Can plasma do the same job? Sure
01:07 Plasma is expensive (electricity) and high voltage (safety)
01:29 I'm not sitting in a bucket of water with a high voltage system underneath me
01:37 Better safe than sorry
01:42 Chemistry side by side: bleach uses hypochlorite (ClO⁻) to oxidize organics
01:55 Plasma uses reactive oxygen and reactive nitrogen species
02:01 Plasma wins where liquid chemistry loses
02:10 Where they already compete: spinach fogging in food processing
02:23 Fresh spinach climbs a long conveyor, falls into the bag
02:56 Plasma-fog the spinach mid-fall, it lands sterile
03:12 Everybody wins. Still costs electricity + high voltage.
03:20 Where bleach still wins: dirt cheap. 50-gallon drum.
03:47 The catch: workers smell chlorine all day
03:51 I go to food processing facilities and my eyes water immediately
03:58 It's not doing wonders to their lungs either
04:02 So should bleach be replaced? Plasma does the same job with different chemistry.
04:18 What needs to happen: either regulatory pressure, or the market has to accept 1-2 cents more per bag
04:26 Then marketing kicks in ("plasma disinfected")
04:33 Marketing always wins in these situations
If you're in food processing, water treatment, occupational health, or you've ever wondered if your pool/hot tub could be chemical-free, this is the episode.
🔔 Subscribe for more in the "Can Plasma?" series: @gregfridman
#CanPlasma #PlasmaScience #Bleach #WaterTreatment #FoodProcessing #FoodSafety #OccupationalHealth #Disinfection
