A tale of two poos - attitudes towards the agricultural use of human excretion-based fertiliser differ between Japan and England as new research shows.
We sampled sewage sludge from 13 wastewater treatment plants across three states. We found every resident adds microplastics to farmland, in dried sewage sludge (biosolids) used as fertiliser.
Sydney’s 14 wastewater treatment plants could be modified to also accept food waste, research shows. The ‘anaerobic digestion’ process would produce energy as well as nutrients for reuse.
A third of South Africa’s farming income depends on irrigation. Disruptions in power supply put huge chunks of the country’s agricultural fortunes at risk.
Many of our rivers are overloaded with nutrients from fertiliser run off and wastewater. Algal blooms, fish kills and poor water follow. One solution? Nutrient offsetting.
Several batches of palm kernel product imported for dairy farms contained certain chemicals above a safe limit – and there’s an ethical quandary in supporting an industry linked with deforestation.