Don’t Throw That Out! Turning Dairy Waste into Microalgae Products.

Wastewater produced on dairy farms can be a tough challenge for small and medium sized farms. High-tech treatment methods work for large farms, but smaller farms need a more effective way to treat their wastewater. Discharged without treatment, wastewater can highly endanger aquatic systems, deteriorate water quality, and has cost the US billions annually to clean up. This study’s research shows the potential to turn that waste back into commercial products by growing microalgae. Because wastewater is rich in the nutrients microalgae need to grow, it can be harvested and turned into biofuels, biofertilizers, animal feed, and other products. This provides smaller farms with a method to treat their wastewater and turn it into a usable commercial product.

Read more

The fate of our waste: nitrogen removal in residential wastewater

Residential wastewater serves as a major source of nitrogen to coastal watersheds. Increased nitrogen loads can harm coastal ecosystems, so advanced onsite wastewater treatment systems have been designed in order to reduce these loads and protect coastal waters.

Read more

Generating electricity while microbes clean wastewater – how wastewater treatment plants could go from brown to green

Microbial fuel cells are structures that behave like batteries, but are powered by ever-present environmental microbes. Researchers in South Korea measured the ability of Microbial Fuel Cell prototypes to generate electricity while cleaning up wastewater. Results indicate that this technology could radically reduce the energy requirements of wastewater treatment facilities.

Read more