Factors impacting water quality vary based on geography, infrastructure, industry and even climate, making water treatment a constantly evolving practice that faces new demands every day.
A new system that combines targeted circulation of standing water with a novel technique for removing pollutants just might have the versatility needed to address water contamination in a rapidly changing world.
Simple PVC Sprinkler Reduces Bacterial Infections In the municipal water tanks used to supply drinking water to communities throughout the United States and Canada, the layer of water above the tanks’ intake and outtake pipes is stagnant.
Until now, the primary method for preventing infection has been avoiding the upper water layer by drawing the drinking supply from the bottom of the water tank.
Using this mechanism, incoming water was sprinkled evenly across the surface of water contained in a cylindrical tank, and the reverse sprinkler at the bottom of the tank drew out water from more than one location.
The parallel downward streamlines generated by this sprinkler system eliminated the majority of the stagnation zones within the tank.
Magnetic Removal of Adsorbed Molecules Addresses Wide Range of Synthetic Contaminants No circulation system is going to prevent contamination by micropollutants, which can enter the water supply through discarded or excreted medication, recycled laundry water or industrial runoff.
A system that relies on adsorption by magnetic nanoparticles to remove micropollutants requires minimal infrastructure changes when adopted by a water treatment plant.
The Future of Water Treatment The newly developed PVC sprinklers and magnetite nanoparticles have only been tested in small-scale laboratory water tanks.
To bring them into real-life water treatment plants, the systems would have to be scaled up, but the adaptability makes them well-suited to widespread testing throughout North America.

Summer research on using biologically-inspired models to fight water pollution.
The opportunity to participate in summer research as a freshman was incredible.
This research gave me my first real glance into how the scientific community really works.
In my project I was working with both Hampden-Sydney and Virginia Tech professors to create a bioinspired, 3D printed prototype that would collect trash in rivers.
The results of this work will be integrated into a National Science Foundation proposal that would enable undergraduates from across the nation to engage in projects that combine techniques in biology and engineering to ethically solve world challenges like water pollution.
During this project I stepped out of my comfort zone and developed valuable insight into many aspects of professional science that I was unaware of.
I learned how to communicate with professors from different institutions to effectively accomplish a goal, write and submit research protocol, learn and master new technology, obtain permission to use live animals in an experiment, and how to correctly address adversity in a professional manner.
This research has taught me that I have the ability to think big and also possess the practical means that will allow me to reach any goal I set.
The lessons and skills that I’ve developed this summer will be extraordinarily beneficial on my path to medical school and into the world beyond.

Biology Project- Water Pollution- 11ºB.
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Biology Water Balance and the Kidney.
IB Biology Notes – 3.1 Chemical elements and waterChemical elements and water 3.1.1 State that the most frequently occurring chemical elements in living things are carbon, hydrogen, oxygen and nitrogen.WaterBiology The Water Cycle – Shmoop BiologyShmoop Biology explains The Water Cycle.
Learning and teaching resource for The Water Cycle BBC – Higher Bitesize Biology – Maintaining water balance A BBC Bitesize secondary school revision resource for Higher Biology on maintaining water balance: animals, osmoregulation in fish, plants, transpiration.Welcome to AP BiologyAP Biology is being Revised and Updated in 2012!
New AP Biology Syllabus: New AP Biology FrameworksSOURCES OF WATER POLLUTION – MBA Projects, Free MBA Water Pollution, Project Report on Water Pollution, Project Report Effect of Water Pollution, Examples of Water Pollution, Causes of Water Pollution, Control of of Biology Water Balance and the Kidney – Shmoop Biology Shmoop Biology explains Water Balance and the Kidney.
Part of our Animal Nutrition and Digestion Learning Guide.
Definition.
noun .
The act, state or process of sticking together.
The intermolecular force that holds together alike molecules in a substance.Soil and Water Conservation SocietySoil and Water Conservation Society (SWCS) is a nonprofit scientific and educational organization — founded in 1943 — that serves as an advocate for conservation Pearson – The Biology Place – Prentice Hall Bridge pageLabBench Activity Diffusion and Osmosis.
has provided students with a learning resource for cell biology, microbiology, immunology, and microscopy through the use of mobile …Osmoregulation – Biology Encyclopedia – cells, body, human Osmoregulation means the physiological processes that an organism uses to maintain water balance; that is, to compensate for water loss, avoid excess water Biology of Plants: Introduction – MBGnetBIOLOGY OF PLANTS.

Evoqua to supply 18 Rotating Biological Contactor units to Port Chester, NY WWTP.
Evoqua’s Rotating Biological Contactors.
Photo: Evoqua.
PITTSBURGH, PA, FEBRUARY 15, 2017 — Evoqua Water Technologies has been selected to provide Rotating Biological Contactor (RBC) upgrades at the Port Chester, New York wastewater treatment plant (WWTP).
Evoqua’s Municipal division will supply eighteen (18) Envirex Series 400 RBC units arranged in three (3) flow trains with six (6) RBC units in each series for maximum performance.
Benefits include stable process results with minimal maintenance, small footprint with low headloss, and low energy consumption.
For more information, visit www.evoqua.com/envirex.
Its cost-effective and reliable treatment systems and services ensure uninterrupted quantity and quality of water, enable regulatory and environmental compliance, increase efficiency through water reuse, and prepare customers for next-generation demands.
Evoqua’s unparalleled portfolio of proven brands, advanced technologies, mobile and emergency water supply solutions and service helps cities across the world provide and discharge clean water, and enable leisure and commercial industry to maximize productivity and profitability.
For more information, visit www.evoqua.com.

STEM expo: sustainability has a central role.
During the April 8 third annual STEM Expo at Wellesley High School, students and residents showcased nearly 100 exhibits covering various aspects of STEM such as robots, technology and engineering innovation, coding, environmental education, chemistry, physics, mathematics and biology.
Three WHS Evolutions students who participate in a project-based learning environment exhibited the details and benefits of their aquaponics project.
This cycle complements both the lettuce grown above the tank and the water and fish below it, as the plants filter out and redistribute clean water back into the fish tank.
They learned that this system can be used to feed high school students greens in a cheaper and local way.
Since the Town of Wellesley is working to increase its national ranking for voluntary renewable energy through the Power To Choose Program — and make its lower carbon footprint goal — this year’s Sustainability Challenge was very topical.
"It was evident that these students put in a great deal of time and energy into researching the topic, forming opinions and creating their projects," said Jessica Stanton, of Wellesley Green Schools.
Middle school students did a similar project, as three different Design and Technology classes used the newly built greenhouse to create a sustainable system to grow the maximum quantity of high-quality greens to feed students at WMS.
“It’s a really nice way to preserve water and great way of growing.” Two other Evolutions students, Calvin Lindquist and Tommy Wasson, proposed installing solar panels on Wellesley Middle School after their research determined it would be beneficial for the school to do so.
By using a plastic model of a town, featuring hills, rivers, farms, homes, a factory and a golf course, people sprinkled different smaller substances around parts of the town, representing fertilizers and pesticides among others.

Paws without claws?
Effects of carnivore comeback in European anthropogenic landscapes.
In a review article in the Proceedings of the Royal Society B a European research group highlights gaps in knowledge on the effects of carnivores in human-dominated landscapes.
This view is partly based on experiences from Yellowstone National Park.
Although we are not always physically present, these landscapes are still heavily shaped by us, for example, through forestry and hunting."
In other words, humans may remove the claws from the carnivores’ paws.
Perhaps even more important is that the authors suggest that most of the research done so far on the role that predators play in ecosystems has been carried out in landscapes with very low human impact.
"Human activity must be included in research on the ecological effects of large carnivores.
Journal Reference: D. P. J. Kuijper, E. Sahlén, B. Elmhagen, S. Chamaillé-Jammes, H. Sand, K. Lone, J. P. G. M. Cromsigt.
Ecological effects of large carnivores in anthropogenic landscapes.