Related topics: hydraulic fracturing

Concerns grow over tainted sewage sludge spread on croplands

For more than 20 years, the eastern Michigan town of Lapeer sent leftover sludge from its sewage treatment plant to area farms, supplying them with high-quality, free fertilizer while avoiding the expense of disposal elsewhere.

NASA showcases method to grow algae-based biofuels

NASA recently showcased the latest research and technology development a method to grow algae, clean wastewater, capture carbon dioxide and ultimately produce feedstock for refining biofuels without competing with agriculture ...

Turning wastewater nutrients into fertilizer

Wastewater contains large amounts of nitrogen and phosphorus, which are valuable nutrients. NPHarvest is a process developed by Aalto University researchers that allows for the recovery of these nutrients in a way that produces ...

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