Is sludge a sustainable “fertilizer”?
• We should not charge farmland with metals and foreign chemical compounds by spreading sludge from municipal sewage treatment plants • Future generations’ food-supply has to be derived from farm land which is currently earmarked by the EPA for gradual destruction. • There are only a few ways to avert the impending ruination of farmland: • Keep the organic plant nutrients in urine and feces free of the contamination caused by mixing them with municipal and industrial effluents with their spectrum of chemical compounds. • Urine and feces should be kept out of the waste stream and rendered recyclable on-site by source separation and treatment to make it safe for re-use, for example long term composting.
