The core issue is that sludge testing hasn't been updated since 1989, per the environmental groups. Primary tests are for ...

Nigerian farmers are increasingly converting agricultural waste into useful resources such as compost, biogas, and organic fertilizer--cutting costs, improving yields, and promoting sustainable ...

Biosolids aren't tested for forever chemicals before being used as fertilizer in Florida. Testing requirements would help ...

Farmer’s plan The farmer who plans to use the sewage sludge was open about the reasons for their plans. Justin Cunfer, who helps operate his family’s farm, said biosolids are already used on ...