#water purification

[slightlyloomingone]

Solarpunk Aesthetic: Brazilian Clay Water Filters

I dithered a lot trying to decide on something to post about for Solarpunk Aesthetic Week, but at the end of the day I'm a Brazilian and I like to talk about Brazilian things... so here are some Brazilian Red Clay Water Filters! These are considered to this day one of the most reliable water purification systems in the world, and used to be very popular in the past all over Brazil before the rise of mineral water coolers in the 90s and early 2000s. The Red Clay keeps the water cool and they use a ceramic candle to filter water.

Nowadays, Red Clay filters live mostly in our memories of Brazil in the 80s or 90s (and in memes like "this represents Brazil more than Samba or caipirinha"), although there has been a bit of revival as design pieces, which is why these pictures are all decorated or integrated with planters. You can still find functional models like this for sale, however. But I believe Red Clay Water Filters belong in a concept of Brazilian Solarpunk for two reasons:

Although I couldn't find sources for the claim, it's widely believed here that this model was created in Brazil, with some speculation that the use of Red Clay and the characteristic shape of the filter originate from the use of red clay in ceramics by different indigenous cultures in Brazil (there is a type of water jug called moringa that evokes the idea of a red clay filter and has been around for centuries)

Brazil has a long history of water insecurity and poor sanitation all over the country, but personally I am more familiar with this issue in Northeast Brazil, where a combination of a challenging environment (especially in the sertão) and historical neglect by the government means the population in the rural areas was constantly facing intense droughts every dry season. In this context, I consider the existence of a reliable system of water filtration an essential aspect of Northeast Brazil's culture of resistance

This got a bit long, but I hope it made for an interesting read for anyone taking part in Solarpunk Aesthetic Week, or who just ended up here by chance. I mostly engage with Solarpunk through original fiction (still unpublished), but because of my introduction to it it's very hard to separate the aesthetic and movement from my own culture. Here's to continuing to imagine a future together!

[mindblowingscience]

Access to clean water is being strained as the human population increases and contamination impacts freshwater sources. Devices currently in development that clean up dirty water using sunlight can only produce up to a few gallons of water each day. But now, researchers in ACS Central Science report how loofah sponges inspired a sunlight-powered porous hydrogel that could potentially purify enough water to satisfy someone's daily needs—even when it's cloudy.

Previously, researchers have suggested that sunlight-driven evaporation could be a low-energy way to purify water, but this approach doesn't work well when it's cloudy. One solution could be temperature-responsive hydrogels, specifically poly(N-isopropyl acrylamide) (PNIPAm), that switch from absorbing water at cooler temperatures to repelling it when heated. However, conventional PNIPAm gels can't generate clean water fast enough to meet people's daily needs because of their closed-off pores. Conversely, natural loofahs, which many people use to exfoliate in the shower, have large, open and interconnected pores. So, Rodney Priestley, Xiaohui Xu, and colleagues wanted to replicate the loofah's structure in a PNIPAm-based hydrogel, yielding a material that could rapidly absorb water at room temperature, and rapidly release purified water when heated by the sun's rays under bright or cloudy conditions.

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[yearzerosurvival]

Primitive life straw.

[aiplone]

aquaquot is a WATER PURIFIER related SERVICES provider in Bangalore.

water purifier on lease, water purifier repairs, water purifier services, buy water purifier and accessories at affordable price.

[suzilight]

More ‘forever chemicals’ found in WA drinking water as cleanup costs mount

Dec. 11, 2022 Seattle Times (paywall)

570,000 people, 7.4% of the state’s population, according to a Seattle Times analysis of test results

LAKEWOOD, Pierce County — The water pumped from the ground here was once considered pure enough to mix with a little chlorine and then pipe directly to homes.

Today, every gallon from two water district wells must first be flushed through six enormous tanks, each filled with 40,000 pounds of specially treated coal, to remove contaminants.

This pollution, known as “forever chemicals” or PFAS, can increase health risks for certain cancers and other diseases when present in drinking water in minuscule concentrations measured in parts per trillion. Lakewood is one of more than a dozen Washington public water systems with detections above levels defined by the state to be suitable for long-term consumption — and widespread testing is just ramping up.

a massive legal battle is playing out across the country as more than 200 providers of public drinking water, including Lakewood, sue manufacturers, distributors and in some cases the Defense Department in federal court to determine who will pay the cleanup bills that will tally in the billions of dollars.

In December 1988, 3M chemist Eric Reiner wrote a memo to his colleagues about the corporation’s firefighting foams formulated with PFAS.

For years, the corporation’s marketing pitch portrayed them as “biodegradable.” Reiner termed this a “myth” that was not in 3M’s long-term term interest to perpetuate.

“It is probable that this misconception will eventually be discovered, and when that happens, 3M will likely be embarrassed, and we and our customers may be fined and forced to immediately withdraw products from the market,” Reiner warned.

3M no longer produces the foams that contained PFOA and PFOS. Reiner’s memo is one of many internal 3M documents put into the public record in the avalanche of litigation now consolidated in the U.S. District Court of South Carolina.

3M and other manufacturers initially sought to have many lawsuits dismissed based on case law that has sometimes granted immunity from liability to contractors supplying products requested by the U.S. military.

In a Sept. 16 opinion, U.S. District Court Judge Richard Mark Gergel of South Carolina found 3M and other defendants “knowingly withheld” information detailing the full risks of the product and denied that motion.

[natinalpartisan]

Choosing the Right Survival Prepping Option: A Guide to Find Your Best Fit

In uncertain times, being prepared for emergencies is crucial. But with numerous survival prepping options available, finding the right one for you can be overwhelming. Fear not, as this comprehensive guide is here to help. Whether you're a city dweller or a wilderness enthusiast, this resource will navigate you through various prepping options, from bug-out bags to homesteading, self-sufficiency to tactical prepping. Discover the essentials of food storage, water purification, emergency shelter, and first aid. Uncover the secrets of outdoor survival and wilderness skills. Explore the realms of self-defense, alternative energy, and crisis management. Equip yourself with the knowledge to make informed decisions and ensure your readiness for any situation.

[vic-ketterer-lachance]

best tap water filters that filter fluoride:

please drop links!

[aquitainequeen]

Scientists just announced they have created a membrane made from a waste by-product of vegetable oil manufacturing, which can filter out heavy metals from contaminated water.

They discovered that proteins derived from the by-products of peanut or sunflower oil production can attract heavy metal ions very effectively.

The study showed that this process of attraction, called adsorption, was able to purify contaminated water so it meets international drinking standards.

[lupine-publishers-oajess]

Improving Quality of Water Using Natural Nano-Clay Composites: Isotherms Describing Water Purification Using Fe-Montmorillonite from Chelel, Kapchorwa in Uganda

Abstract

Pollution resulting from increased human activities is threatening Lake Victoria, its effects are characterized by high turbidity, pH, iron (II) concentration, chemical oxygen demand (COD) and eutrophication. The performance of Fe-montmorillonite as low cost adsorbent for purifying water was studied. The batch technique was used in which Murchison Bay (MB) water was mixed with varying amounts of clay and stirred at 80rpm for 10 minutes at ambient temperature; filtered through what man paper and the filtrate was used to determine residual COD, Fe, TN and TP. The optimum concentration of clay of 0.4gl-1 was observed to produce 73.5+2% fall in COD as microbes and organic waste was removed. The concentration of iron (II) fell from 3.7+0.3 to 2.5+ 0.2 predicting removal of heavy metal by the clays. The data accumulated was analyzed using Freundlich, Langmuir and Temkin isotherms. The isotherms best described the results because the R2 values were very high. The Langmuir constant KL related to adsorption capacity of clay varied from 0.436 to 12.996 for removal of ions of iron; 0.068 to 1.161 for nitrate ions; 0.365 to 1.7295 for phosphate ions and 0.912 to 0.989 for removal of COD reducing agents. The Freundlich exponential constant, n, characterizing energetic heterogeneity of the clay surface varied from 0.059 to 0.714 for removal of ions of iron; 0.997 to 1.083 adsorption and /or exchange of nitrate ions; 0.339 to 1.582 for removal of COD reducing agents. The Temkin constant BT varied from 6.1582 to 21.025 for the nitrate, from 2.64 to 43.42 for adsorption of iron and 26.24 to 65.38 for removal of COD reducing agents. So, Femontmorillonite can remove organic and inorganic pollutants from MB waters. There is need to investigate the effectiveness of acid- and alkali-leached clay on MB water as well as kinetic study on removal of impurities from the water.

Read more about this article: https://lupinepublishers.com/environmental-soil-science-journal/fulltext/improving-quality-of-water-using-natural-nano-clay-composites.ID.000164.php

Read more Lupine Publishers Google Scholar articles: https://scholar.google.com/citations?view_op=view_citation&hl=en&user=f6syqaoAAAAJ&cstart=20&pagesize=80&citation_for_view=f6syqaoAAAAJ:OU6Ihb5iCvQC

[filken]

The Essential Guide to Choosing the Right Water Filtration System for Your Home

In today's world, where water quality concerns are on the rise, investing in a reliable water filtration system has become essential for safeguarding your health and well-being. With a plethora of options available, choosing the right water filtration system can be overwhelming. This guide aims to provide clarity and guidance on selecting the best system for your home.

Understanding Water Filtration Systems:

Types of Filtration Systems: Explore the different types of water filtration systems, including reverse osmosis, activated carbon filters, UV filters, and more. Understand their unique mechanisms and capabilities in removing contaminants. You can also visit on this website, if you are searching for the service of water filtration for you home or business.

Contaminants Removed: Learn about the various contaminants that water filtration systems can eliminate, such as chlorine, lead, bacteria, pesticides, and sediment. Understand the importance of targeting specific contaminants based on your water quality concerns.

Factors to Consider When Choosing a Water Filtration System:

Water Quality Analysis: Conduct a water quality analysis to identify the specific contaminants present in your water supply. This analysis will guide you in selecting a filtration system that effectively addresses your water quality issues.

Flow Rate and Capacity: Consider the flow rate and capacity of the filtration system to ensure it meets your household's water usage needs. A system with a higher flow rate and capacity is ideal for larger families or homes with high water consumption.

Installation Requirements: Evaluate the installation requirements of different filtration systems, such as under-sink models, countertop filters, whole-house systems, or point-of-use devices. Choose a system that fits seamlessly into your existing plumbing and space constraints.

Maintenance and Filter Replacement: Understand the maintenance needs and frequency of filter replacements for each type of filtration system. Opt for a system that offers easy maintenance and accessible filter replacements to ensure continuous clean water supply.

Choosing the Right Water Filtration System for Your Home:

Reverse Osmosis Systems: Ideal for removing a wide range of contaminants, including heavy metals, chemicals, and bacteria. Considered highly effective but may require professional installation and regular maintenance.

Activated Carbon Filters: Effective in reducing chlorine, volatile organic compounds (VOCs), and unpleasant odors/tastes from water. Suitable for improving the taste and odor of drinking water.

UV Filters: Utilize ultraviolet light to disinfect water by targeting bacteria, viruses, and other microorganisms. Ideal for eliminating microbial contaminants in water.

Whole-House Filtration Systems: Provide comprehensive filtration for all water sources in your home, including faucets, showers, and appliances. Ensures clean and safe water for drinking, bathing, and cooking.

Benefits of Installing a Water Filtration System:

Improved Water Quality: Enjoy cleaner, healthier water free from harmful contaminants, ensuring the well-being of your family.

Cost Savings: Reduce the need for bottled water purchases and minimize potential costs associated with water-related health issues.

Environmental Sustainability: Contribute to environmental conservation by reducing plastic waste from disposable water bottles. To know more about water purification you can click here.

Conclusion: Investing in a water filtration system is a proactive step towards ensuring access to clean, safe, and great-tasting water in your home. By considering factors such as water quality analysis, system type, installation requirements, and maintenance needs, you can choose the right filtration system that meets your specific requirements and enhances your overall quality of life. Make informed decisions and enjoy the benefits of pure, refreshing water for years to come.

[gauricmi]

Optimizing Water Treatment: Harnessing Hollow Fiber Filtration

Hollow Fiber Filtration is a sophisticated water treatment technology that offers numerous advantages in purifying water for various applications. Understanding its mechanisms and benefits is crucial for optimizing water treatment processes.

Understanding Hollow Fiber Filtration: Hollow Fiber Filtration is a membrane-based water treatment method that utilizes semi-permeable hollow fibers to remove impurities from water. These fibers have microscopic pores that selectively allow water molecules to pass through while blocking contaminants such as bacteria, viruses, and suspended solids.

Efficient Contaminant Removal: One of the key advantages of Hollow Fiber Filtration is its ability to efficiently remove a wide range of contaminants from water. The small pore size of the hollow fibers ensures thorough filtration, resulting in clean and safe water suitable for various purposes, including drinking, irrigation, and industrial processes.

Compact Design and Space Efficiency: Hollow Fiber Filtration systems are known for their compact design and space efficiency. The hollow fibers are densely packed within the filtration module, allowing for high filtration surface area within a relatively small footprint. This makes them ideal for installations in locations where space is limited.

Low Energy Consumption: Hollow Fiber Filtration systems are energy-efficient compared to traditional water treatment methods. The filtration process relies on gravity or low-pressure pumping, requiring minimal energy input. This results in lower operating costs and reduced environmental impact, making it a sustainable choice for water treatment.

Get More Insights On This Topic: Hollow Fiber Filtration

[zoexfx]

Angel Weibo Updated!

Welcome Xiao Zhan to become Angel’s global brand spokesperson. Angel has been focusing on the field of water purification for 36 years. In the future, we will join hands to witness a new era of whole-house water purification.

[yearzerosurvival]

Saving Lives: Learn How to Obtain Drinkable Water in an Emergency Situation

[larcoindia]

With every step forward, guided by your support and good wishes, 2023-2024 has unfolded as a magnificent chapter in our lives.

We look forward to your continuous support and adding value to your Organisation.

[wateroftexas]

Expert Water Treatment Installations and Repairs in Clute, TX, and Nearby Areas

Water of Texas LLC specializes in high-quality water treatment solutions, offering expert installations and repairs in Clute, TX, and nearby areas. With over 50 years of combined industry experience, our professional team ensures your water treatment system, the heart of your home or business, is always at its best.

We provide a comprehensive range of services, from installation and maintenance to repairs. As an authorized Brita PRO® provider, we deliver top-notch products like Advanced Water Softener, Catalytic Carbon Filter Water Softener, Iron Filter Water Softener System, and Under-Sink Reverse Osmosis System.

Our water filtration systems are made in the USA, certified, safe, and reliable. Enjoy the benefits of safe, cost-effective, and chemical-free water with our services. Contact us today for free water tests, evaluations, and consultations.