Tag: nutrients
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Membrane technology to address excess water problem on Washington dairy
“We really don’t have a nutrient problem; we have a water problem,” states Galen Smith, partner and general manager of Coldstream Farm LLC in Deming, Washington. With their new 50-stall rotary parlor that has the capacity to milk 2,200 cows three times a day, Smith says their goal is to maximize the use of this…
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U.S. Supreme Court Agrees to Hear Hawaii Clean Water Act Case
Degraded coral reefs at Kahekili Beach Park in west Maui, Hawaii. Peter Swarzenski / Usgs In a case watched closely both by polluting industries and clean water advocates across the nation, the U.S. Supreme Court agreed to take up an appeal of a Clean Water Act case out of Hawaii concerning treated sewage flowing into…
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To fix the reef we first need to fix the land – but where do we start?
Photo: The Great Barrier Reef, Northern Queensland, Australia Rivers deliver sediment from land to the ocean. This sediment contains nutrients which can feed microscopic algae in water. But, if there is too much sediment and nutrients, delivered by floods from land-based erosion, algal blooms can occur that have negative effects on the Great Barrier Reef.…
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Should Rivers Have Rights? A Growing Movement Says It’s About Time
Inspired by indigenous views of nature, a movement to grant a form of legal “personhood” to rivers is gaining some ground — a key step, advocates say, in reversing centuries of damage inflicted upon the world’s waterways. The free-flowing Baker River in Chile’s Patagonia region. Permits for a major hydroelectric project on the waterway were…
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On-farm Treatment Options for Wastewater, Greywater and Fecal Sludge
Fecal contamination of urban and peri-urban water bodies is a major health issue in most low- and middle-income countries, where population growth exceeds the rate of development of wastewater or fecal sludge collection and treatment infrastructure. While the expansion of sewer systems and treatment capacity remain a high priority for municipal authorities, there are opportunities…
