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Why human waste should be used for fertilizer

Why human waste should be used for fertilizer

Fertilizer increase crop production up to 5 times per acre. To give you an idea of how important natural-gas (feedstock and energy to make it) fertilizer is, here are a few paragraphs from Yeonmi Park’s recent book “In order to live: A North Korean girl’s journey to freedom”:

“One of the big problems in North Korea was a fertilizer shortage. When the economy collapsed in the 1990s, the Soviet Union stopped sending fertilizer to us and our own factories stopped producing it. Whatever was donated from other countries couldn’t get to the farms because the transportation system had also broken down. this led to crop failures that made the famine even worse. So the government came up with a campaign to fill the fertilizer gap with a local and renewable source: human and animal waste. Every worker and schoolchild had a quota to fill.  Every member of the household had a daily assignment, so when we got up in the morning, it was like a war. My aunts were the most competitive.

“Remember not to poop in school! Wait to do it here!” my aunt in Kowon told me every day.

Whenever my aunt in Songnam-ri traveled away from home and had to pop somewhere else, she loudly complained that she didn’t have a plastic bag with her to save it.

…click on the above link to read the rest of the article…

Human manure: Closing the nutrient loop

Human manure: Closing the nutrient loop

Using human urine and faeces as fertiliser may seem an unappetising concept but it’s been common practice for centuries. In the sewage systems of today, which deal with millions of tonnes of domestic waste and industrial effluent, this human fertiliser comes in the form of treatedsewage sludge.

Promoting a waste product that some consider hazardous as a resource to grow your food may seem like a paradox, but in Britain, a world leader in recycling sewage into agriculture, it is recognised by the government and the EU as the best environmental option. It diverts waste away from oceans and landfill and provides essential plant nutrients to the soil. Nevertheless, EU organic regulations don’t permit the use of sewage sludge on organic farms. So, what are their concerns? Is this form of manure safe for agriculture? Are we putting our health and our soils at risk when we spread human waste on land?

“1% of wastewater is waste. The rest is wasted water.”

Human urine and faecal matter are a rich source of essential plant nutrients. Historically, human excreta, ‘nightsoils’, were collected from towns and villages and spread in raw or composted form on fields in the surrounding farmland. This informal treatment is still practiced in some areas of China, South East Asia, Africa and Latin America, where municipal sewage works don’t exist or are poorly functioning. In the 1850s, Europe’s growing urban populations and the discovery of the link between raw sewage and cholera led to the implementation of large-scale sewage systems. These water-based systems combined all domestic waste, industrial effluent and road surface run-off. For the next century the resulting sewage sludge was disposed of in landfill and directly into the oceans.

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Olduvai IV: Courage
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Olduvai II: Exodus
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