Скачать или смотреть AquaHacking Challenge Webinar: Phosphorus Capture & Recycling in Farming

Challenge description:Phosphorus is critical to agricultural production; the nutrient exists naturally in soil and is also applied on fields in a commercial form. Excess phosphorus is lost into water systems in large rain and melt events through surface runoff or through sub-surface drainage systems. In the Great Lakes watershed, most fields are drained using perforated plastic pipes placed 3 feet deep, and 30-50 feet apart which outlet into ditches and watercourses. Effective drainage is critical to agriculture and oftentimes surface inlet structures (ie. catch basins) are installed in low-lying areas of the field to drop excess water below ground to the watercourse. There are a number of points in which sorption materials could be used to capture phosphorus before it reached the watercourse, including drainage outlets, inlets and on the field itself. A key issue is that traditional sorption materials work best in still water, while agricultural drainage systems cannot be compromised with reduced flow capacity in major storm events. Another opportunity is for captured phosphorus to be recycled.

Register here: https://2018.aquahacking.com/en/chall...