Olive mill wastewater transformed: From pollutant to bio-fertilizer, biofuel

Olive oil has long been a popular kitchen staple. Yet producing the oil creates a vast stream of wastewater that can foul waterways, reduce soil fertility and trigger extensive damage to nearby ecosystems. Now in a study appearing in ACS Sustainable Chemistry & Engineering, scientists report on the development of an environmentally friendly process that could transform this pollutant into ‘green’ biofuel, bio-fertilizer and safe water for use in agricultural irrigation.