#activated-carbon

#activated-carbon

"We didn't know what we had," Michele Stansfield, co-founder and CEO of Cauldron Ferm, told TechCrunch. But eventually, Stansfield realized they had more than initially thought.

Most water filter pitchers are made of BPA-free plastic. But as new research shows that bottled-water drinkers ingest tens of thousands of excess microplastic particles, wellness lovers have begun to look askance at water filters that are themselves made of plastic.

MVHR (Mechanical Ventilation with Heat Recovery) systems are designed to continuously replace stale indoor air with fresh outdoor air while recovering heat that would otherwise be lost. In commercial and residential buildings, this technology provides several important advantages. First, it allows buildings to remain energy efficient without sacrificing airflow.

Heating, cooling, and battery temperature control are among the biggest energy consumers in electric buses today - and thus have a direct impact on range, availability, and operating costs.

Never place batteries of any type in your curbside recycling bin. Batteries can damage recycling equipment and, if lithium batteries are mixed in, cause fires. Always use designated battery collection programs.

According to the company, the compressor integrates an ultra-high-speed electric motor exceeding 160,000 rpm combined with an oil-free foil bearing system. The architecture is designed to deliver reduced package size, lower weight and lower noise levels compared with conventional scroll compressors. Garrett states that the system is up to 50% smaller, 30% lighter and 10 dB quieter than traditional scroll-based solutions. The compressor is engineered for compatibility with 400V to 800V heat pump systems and supports low-pressure, low-GWP refrigerants.

Ammonia might be the world's most under appreciated chemical. Without it, crops would go unfertilized and billions of people would starve. Humans started making ammonia in large amounts just over a century ago, and since then the process used to make it, known as Haber-Bosch, hasn't changed much. A new startup, Ammobia, says that it has tweaked the Haber-Bosch process to lower the cost by up to 40%.

There is nothing more fundamental to human existence than breathing. Without air, people die in a matter of minutes. As well as the oxygen that is essential for survival, air contains pollutants of increasingly anthropogenic origin. These contaminants are emitted into outdoor air by combustion, which is essential for generating energy, and by the industrial and agricultural processes that underpin every element of modern life. Contaminants also penetrate buildings, in which they mingle with indoor air pollutants, rendering homes and offices not entirely safe.

The best affordable air purifier offers excellent value for the price, even when it's not on sale. This is the best price we've seen since Black Friday (and it comes within $30 of that cost), and it usually doesn't fall cheaper than it is right now outside of seasonal shopping events. It can clean a room up to 361 square feet, exchanging the air at 4.8 times per hour.

The team, from the Chinese Academy of Sciences and Beijing Institute of Technology, recently published their findings in Nature Communications. According to their research, the process not only avoids conventional leaching chemicals and extreme heat to extract lithium from old batteries, but it also uses carbon dioxide in what the authors call a sequestration step, and turns other battery transition metals into new catalysts - with CO₂-rich water doing most of the chemical work.

A worker sweeps the track at the National Stadium during the 2008 Beijing Olympics, which was disrupted by heavy rain. Photograph: AFP/Getty Images The secret weapon is a network of capillary-like tubes that weave through the Bird's Nest's outer lattice, which are specifically designed to siphon away rainfall. The pipes channel rainwater into one of three underwater storage tanks, where it is filtered and prepared for recycling within the building.

AqueLyst approaches this challenge through odor elimination science, focusing on neutralizing odor-causing compounds at their origin. Rather than masking unwanted smells, the brand applies a science‑forward method that addresses odors at the molecular level. This approach reflects a shift away from traditional deodorizing practices and harsh chemical treatments, offering a responsible alternative for environments that require consistent, source-based odor control supported by practical chemistry and surface-safe formulations.

Clean Harbors just locked in a $110 million contract for PFAS water filtration at Joint Base Pearl Harbor-Hickam. This isn't just another project win. It's validation of the company's end-to-end PFAS solution: lab analytics, water filtration, site remediation, and most critically, high-temperature incineration disposal.

Black plastic gets its color from carbon black pigment and is commonly used in food containers, such as meat or produce trays and take-out containers, as well as disposable coffee lids, plastic bags, and hard plastic items like DVD cases and planters. While plastic is one of the categories of things that we are encouraged to recycle - when we can't reuse or repurpose it - not all black plastic items can be recycled.