Did you know that bubbles can clean water? Specifically, dissolved air flotation (DAF) and ultrasound are two methods of making water safer with bubbles. DAF can be used to replace sedimentation in municipal drinking water treatment. Large particles are typically settled out using gravity, but with DAF, bubbles are produced by an oxygen tank pumping air into the bottom of a basin and small particles attach to the sides of the bubbles. The bubbles rise to the top of the basin and the particles are swept off the surface of the water by a skimmer.
The following article deviates from my conventional posts about homemade water treatment, but it is an important issue in the environmental realm- and could give scientists a clearer picture of endangered species.
“Within the field of cetacean research, a passive acoustic monitoring (PAM) system can be defined as a set of acoustic and electronic devices aimed at detecting and tracking marine mammals by listening to their vocalizations” – Brunoldi, et. al.
All Natural. Organic. Eco-friendly. Green. Farm Fresh. These are the sexy buzzwords that draw us in to products that unscrupulously exploit our desire to go green. The FDA doesn’t regulate these terms, and they are often nothing more than just words. “Green” products contain the color green on the packaging. “Farm fresh” covers essentially any meat or dairy product. “Natural” is more of a sentiment than a descriptor. And just to give you a sense of the word “organic”, Dichloromethane is an organic compound and is toxic. I definitely wouldn’t want that in my salad. So then, how should caring consumers discern the environmentally-sound eggs from the chemical-ridden cosmetics?
I was standing in front of the window of our small apartment. I could barely see it at my height. Perhaps it is one of my first memories. The sky was a purple and pink hue. It looked so pretty but Mom said there was a storm. You shouldn’t stand near a window in a storm. Continue reading “Storms”
Environmentalists like to act high and mighty sometimes, like earth goddesses destined to restore the ecosystem and punish those who harm it. Labor Day Weekend I was feeling determined. I ran two miles to watch Suicide Squad at the theater, and ran back. How environmentally conscious, right? I know I seem perfect, but I have some confessions to make. Continue reading “Guilty Confessions”
Okay. Everyone knows about BPA-free plastics. Most popular bottled water brands got rid of BPA plastics back in 2008, when studies revealed its toxicity. It’s dangerous to drink from plastic water bottles because you don’t know where the bottles have been. Continue reading “Life in Plastic, it’s Fantastic!”
Blue Lake or Rotomairewhenua of New Zealand contains the cleanest natural water in the entire world. It is protected not only by Nelson Lakes National Park but also by a local tribe for its sacred waters.
If you’re anything like me, you probably wonder why and how Rotomairewhenua came to be this way. Although only seven meters deep, you can see straight through it. Students at Lappeenranta University of Technology (LUT) in Finland conducted a study called “New technology purifies waste water by freezing it first: Possible applications in mineral extraction industry”in January of 2015 that helped me connect the dots on this lake. Continue reading “Wonder Down Under”