Natural fertilization

| Enviromental Protection |

We have already blogged about the American scientists who use manure and human waste to recover nutrients which support the development of the plants. Technologies which they have developed make it possible to capture valuable dietary elements, which may next be used in the agricultural production.

Natural fertilizers

People have used waste and manure to fertilize the soil for centuries. However, it was the development of cities and their population that made the excess of such substances a problem.

Waste should not be wasted

The first municipality which decided to tackle the issue was the town of Milwaukee, Wisconsin. In the early 20th century, Milwaukee authorities asked scientists from the University of Wisconsin for help. Scientists examined waste and found that it contained nitrogen, phosphorous and potassium in the following proportions – 6:2:4. This is similar to the ratio in contemporary artificial fertilizers, which is 15:30:15. The product developed by the scientists was tested on vegetable plantations and golf courses, and proved efficient. In 1925 the product debuted on the commercial market and became available all over the United States.

An example to follow

Wastewater is currently being treated so that the valuable minerals may be recycled and reused. We ought to look at the Japanese approach at this point. In that country, waste is dried, granulated and burnt. Additionally, bio-gas produced in the process is used to produce electricity. Although the area of the country is only a little bigger than Poland, the population of Japan is 120 million. Given that natural resources are scarce in Japan, the country is forced to recycle the waste it produces.