This High School Student Invented a Filter That Eliminates 96 Percent of Microplastics From Drinking Water

Virginia teenager Mia Heller’s filtration system harnesses the power of ferrofluid, a magnetic oil that binds to microplastics in flowing water

by Ramsha Waseem, March 20, 2026

Excerpt: "A few years ago, teenager Mia Heller came across an article in her local newspaper about ongoing water quality issues in her neighborhood in Warrington, Virginia. Tests had revealed that the water available for daily consumption was highly contaminated with PFAS and microplastic pollution. The article further reported that government agencies would not be providing any funds for filtering the water.

" 'It was up to people to provide their own filtration,' says Heller.

"Not long after the article came out, Heller’s parents invested in an advanced water filtration system at her home. The system, however, required constant upkeep. Seeing her mother replace the water filter #membranes time and again, Heller set out to find a better solution.

" 'It inspired me to design a filter without the use of membranes, to decrease the costs and maintenance needs associated with water filtration,' says the now 18-year-old student at Kettle Run High School. Through her school, she also attends a half-day program for math, science and technology at nearby Mountain Vista Governor’s School.' "

[...]

" 'It was essentially just a container,' she says. Within the container was her filtration system, what she called a 'spinning magnified vial.' Heller harnessed a reusable magnetic oil called ferrofluid to selectively bind to microplastic particles as water flows through her filtration system. While her model successfully filtered out the #microplastics from the water in two simple steps, the system still required constant maintenance, as it did not self-recycle the ferrofluid.

" 'But if I could create a system that was able to basically clean itself and #reuse material,' she explains, 'the maintenance needs could go down by a lot.' "

[...]

"About five iterations later, she found the perfect solution. Her current prototype, which is about the size of a standard bag of flour, consists of three modules. The first unit, about a liter in volume, holds the contaminated water inside it, while the second stores the magnetic oil-based ferrofluid. The core process takes place in the third module, which is much smaller. 'A magnetic field pulls the microplastics out of the water, and the ferrofluid is recovered and reused in a closed loop,' explains Heller. As a stand-alone filter (similar to a Brita pitcher), the system can filter about one liter of water at a time."

Read more:
https://www.smithsonianmag.com/innovation/this-high-school-student-invented-a-filter-that-eliminates-96-percent-of-microplastics-from-drinking-water-180988363/

#SolarPunkSunday #WaterFiltration #WaterIsLife #MicroplasticPollution

Got my performance review today.
Positive feedback: literally every member of my team says I'm the best manager they have ever had. I solved multiple long-standing problems the team has been dealing with for years. Team members feel safe to share their struggles, everyone feels empowered, everyone receives valuable feedback.
Negative feedback: I am not enthusiastic enough about AI.
Overall ranking: 3/5.

Anyone hiring for a fully remote team lead?

#GenAI #LLM #GetFediHired #FediHire

Bernie Sanders just created a video to make a point about issues of privacy in AI (a real problem). His supporters on Muskrat's platform came for me when I quote tweeted his post saying, "at this point, Bernie’s job seems to be lobbying for Anthropic."

So I'm going to elaborate on the corporate psyop that has been happening since the beginning of time and how no one seems to learn their lesson.

RE: https://infosec.exchange/@ubernostrum/116184516972371923

I’m still looking for resources here if you know of any (tl;dr a company threatening debt collection over an account they admit is not mine).

I suspect a single piece of correspondence on law-firm letterhead resolves this, but for every firm I've talked to the dollar amount at issue is too low to even justify talking to one of their attorneys.

RE: https://tldr.nettime.org/@tante/116239395175554368

So yeah. I am kinda looking for a new job that allows me to make our digital world meaningfully better. If you have any leads or thoughts, ping me.

I've been programming in Rust for a few years now. I quite like the language, its tooling, and its library ecosystem. There's a few libraries ("crates") I especially like and use often. A short thread.

See https://blessed.rs/ for a list of "recommended crates" for a less personal list.

#Rust #RustLang