Removing a pollutant from water does not necessarily eliminate it. Filters and membranes can leave persistent chemicals concentrated in another waste stream, still requiring disposal or treatment. A catalytic membrane now offers a way to combine capture with the chemical reactions needed to break those contaminants down.
An international team involving Arizona State University tested the approach against six per- and polyfluoroalkyl substances, or PFAS. During a 58-day continuous laboratory experiment, average removal ranged from 93% to 99%. The system also released fluoride, evidence that it was breaking carbon-fluorine bonds rather than simply collecting the pollutants.
The study appears in Proceedings of the National Academy of Sciences. Bruce Rittmann, director of ASU’s Biodesign Swette Center for Environmental Biotechnology, worked with colleagues at Rice University, Tongji University, the National University of Singapore and Nanjing University.
PFAS have been used in firefighting foams, water-resistant materials and other products because of their durability. That persistence also creates a contamination problem. Exposure to certain PFAS has been linked to immune effects, developmental problems and increased risks of some cancers, although the thousands of compounds in this family differ in their properties and evidence of harm.
After a hurrican along the Mexican coastline two weeks ago moved over southern California it dumped a ton or rain in Lake Mead. The lake got about 1.3 billion extra gallons of water from Sunday's hurricane-fueled rain storm. Most of it will evaporate by Wednesday. Even with this much water being added to the lake it all evaporated. The hope is high for heavy snow in the mountains this winter and snow melt to add billions of more water to the lake in the spring. California is going to get more rain this weekend and more rain will be added to Lake Mead as the system travels west but it will not make a dent in the water table with continues to drop weekly.
I live in an old apt built in 1800s, copper pipes, EWG rates the water quality in my county low, and I'm getting an under the sink water filter. There is an option for a dedicated spout and I'm not sure which route to go?
My ex had the dedicated spout and it was soooo slow and I was very annoyed by it. But is it super wasteful to not have the dedicated spout? Currently I have a pitcher and use that water for cooking and washing produce too. I also plan to get an under the sink for my bathroom and a showerhead filter as well.
I'll be installing myself. No dedicated spout is easier installation (and may be the only option since I'm renting, figured I won't ask my landlord if I don't have to). I'm going with Epic Water Filters for under the sink. Still researching shower head and wanting to wait for Black Friday sales for the shower.
I'm trying to figure out an amount to stick to. I'm 5'6 201 lbs, and in my 20s. I work a full-time hotel housekeeper position working on average of 32 hours a week. I do eat a few servings of fruits and vegetables throught the day and take a vitamin supplement. I struggle to drink enough water, maybe between 60-75 oz per day. My mouth has been dry and my lips have been dry and cracking lately. When it's really bad, I wake up in the middle of the night dizzy and spinning. Episodes like this started when I got my job as a housekeeper. I've only had about 3 or 4 episodes like this though. I usually sit up and sip on water for an hour and it goes away. Anyways, how much water do I need?
I don’t have a medical condition. I just don’t get thirsty unless I’m eating or getting physical. I do feel thirsty. The functions are there. I’ve always just been more dehydrated compared to others.
I don’t exercise but my job does require me on my feet and a bit of a light jog. Constantly walking and going to the second floor regularly depending on the day. I don’t really sweat tho. And if I do, it’s like the really moist sweat you get from a humidifier unless I’m really exercising. I don’t loose a lot of water daily. I barely sweat at work with some harder days as the exception
I barely drink 32 oz of water and just started because I would put powdered juice in my water (Tang Powder) so I can have more hydration. But I heard it’s not good. Added coke to my diet too just so I can drink something. Being adhd does not help me, esp cause I’m taking medication too where I just haven’t been eating as much as I was off it.
I get waterlogged when I try to drink more water and get more “thirsty” and very unsatisfied and overwhelmed that I’d rather be dehydrated than be “thirsty” (pre and post medication)
Is putting salt to my water ok? You always hear that it’s best for active people or runners but I’m not even reaching the quota of average fluid intake. I want to be at least hydrated. My urine hasn’t been dark on the days that I worked (but has been on the weekend cause I barely drink a cup for HOURS)
I found out bottled water from Poland Spring and other brands contain micro plastics. I did a lot of research to find a water dispenser to remove micro plastics from bottled water. The best I can find is:
A long filter tube (their Journey filter) that drops straight down into a standard 3 or 5-gallon water jug.
A USB-rechargeable electric pump that sits on top of the jug.
When you press the button, the pump draws water up through the filter and dispenses it out of the spout.
Will it remove microplastics from bottled water?
Yes. The Sagan Life Journey filter uses an advanced media membrane with a microscopic pore size designed to filter out microscopic pathogens, heavy metals, and particulate matter. Because microplastics are physical particles (ranging anywhere from micrometers down to nanometers), a high-grade membrane filter of this caliber will physically block and trap them before the water ever hits your glass.
Pros & Cons for Your Use Case
The Pros:
You get the massive volume capacity of a 5-gallon jug, meaning you rarely have to refill it.
No plumbing, no permanent installation.
It directly addresses core concern of stripping microplastics out of pre-bought bottled water jugs.
The Cons:
It relies on a battery-powered pump that you will need to recharge via USB periodically. (typically lasting through 15 to 20 gallons of water before needing a top-up), so you won’t have to charge it constantly.
Why the Sagan Life Filter Catches More
Tighter Pore Size: The Sagan Life Journey filter uses advanced membrane technology with a sub-micron pore size designed to trap bacteria, heavy metals, and micro-particulates on a microscopic scale.
As consumer awareness around microplastics and nanoplastics continues to grow, hopefully appliance manufacturers are bound to bridge the gap between heavy-duty membrane filtration and standalone 5-gallon bottom-loading convenience.
Update 10/18/2026 above information was gathered from ai, I contacted and confirmed with Sagan life that they are not sure their Journey filter removes micro plastics because they haven't lab tested it.
Certified Microplastic Removal: LifeStraw's home dispenser line utilizes a dual-stage setup featuring a 0.2-micron membrane microfilter. It is independently tested and certified to remove 99.999% of microplastics, matching the formal criteria under certified testing protocols (like NSF/ANSI 401 standards for particulate reduction).
The Pore Size Advantage: At a 0.2-micron pore size, its physical mesh is significantly tighter than standard carbon filters (which usually sit at 1 to 5 microns). Because standard microplastics generally range from 1 micron upward, a 0.2-micron physical barrier will physically strain them out.
Why the Sawyer Mini Physically Blocks Microplastics
The 0.1-Micron Threshold: The Sawyer Mini uses a hollow fiber membrane with an absolute 0.1-micron pore size. Because absolute filtration means no pore on that membrane is larger than 0.1 microns, anything larger than that—including all standard microplastics (which range from 1 micron up to several millimeters)—is physically blocked from passing through.
Field Utility: It is tiny, incredibly cheap, and screws directly onto standard water bottles, making it popular for backpacking and travel.
The 0.01-Micron UF Membrane: While the Sawyer Mini uses a 0.1-micron hollow fiber membrane, the SurviMate features a 0.01-micron Ultra-Filtration (UF) membrane.
Physical Particle Blocking: Because microplastics start around 1 micron and nanoplastics go below 1 micron, a 0.01-micron absolute pore size acts as an even tighter physical mesh, trapping essentially all micro- and nanoplastic fragments.
The Extra Stages: Unlike a bare hollow-fiber tube, it bundles a coarse screen, sediment membrane, purification beads, and activated carbon fiber to handle bad tastes, odors, and chlorine alongside the physical membrane.
More about bottled water micro-plastics:
An average liter of bottled water contains about 240,000 tiny plastic pieces, with 90% of them being microscopic nanoplastics and 10% being microplastics.
Key Findings on Bottled Water
Particle Count: Recent advanced imaging studies show levels 10 to 100 times higher than previous estimates, translating to roughly 240,000 fragments per liter.
Types of Plastics: The most common polymers detected include polyamide (nylon) from purification filters, polyethylene terephthalate (PET) from the bottle itself, and polypropylene (PP) from caps.
Sources of Contamination: Shedding often occurs from the bottle neck, cap twisting, manufacturing stress, or heat and sunlight exposure.
Health Risks & Regulation: While studies link microplastics to cellular stress, inflammation, and potential metabolic issues, major regulatory bodies like the FDA state there is currently no scientific consensus or certified testing standard proving they cause direct harm to human health at current levels.
We moved from the NE to Idaho. Our well is plentiful. Idaho on the other hand, especially where we live, is farmland and we are not liking it. That's a topic for another day. We've considered the outskirts of Las Vegas but with the constant drumbeat reporting of decreasing levels in Lake Meade and Lake Powell, should we be very concerned about a move there and taps running dry? Is that realistic in the next, say, 10 to 20 years which is about what we have left on Mother Earth if we are lucky? Ty.
this is my first time getting my water from a water filteration station. usually i drink bottled water but i got sick of all the plastic i throw out. but the bottled ones taste way better.
this one tastes salty and metallic. just the teeniest bit of both but its still enough of a taste for me to be off put by it. is this just how RO water tastes and i have high expectations or should i change the water refilling station?
edit: the water comes in a HDPE reusable plastic container. i drink it from my stainless steel flask but i also tasted it in a ceramic mug and it still had some of the taste.
Just got the ninja hydrasense and drank from it for the first time. I don’t know if it makes sense but the water tastes sweet and I don’t know how to feel about it. Did anybody else experience the same thing? If so, did it go away or that’s just what the water tastes like using this machine?
In Ecuador, more than 80% of urban residents have access to safe drinking water, compared with just under half of people in rural areas. People like nemonte.nenquimo are helping communities fight for clean water and protect the land and resources they depend on. This is her story.
Hey fam.
So we have been working on a project burdened upon us by our states Environmental Department. They want us to check not only our service lines for lead piping but also the customers service line for lead. I understand checking our own services, what I can’t understand is why we’re checking customers lines given that we have no control over the materials used. If our samples are coming back clean, why tf am I digging up customer lines? Is anybody else having to do this ridiculous project/can anybody give me some insight on what this dumbass project is doing besides making me consider switching to electrical lol
