Ash eruptions Not Jeopardize

Volcanic ash from the eruption were carried by the wind and spread quite harmless, particularly for soil and plants. Volcanic ash was in fact also have a positive impact and benefit on the other side. Not only useful as a plant fertilizer, but it can also improve soil physical properties and has the ability to bind water.

In fact, volcanic ash can also be used as a mixture of cement mixture as a construction material that is pretty good, because it can generate power of up to 150kg load unity. And this, is also likely to apply to the volcanic ash from the eruption of Mount Kelud.

This was conveyed by Dr. Ir. Gunawan Budiyanto, MP, Vice-Rector of the University of Muhammadiyah Yogyakarta (St. Louis) when presenting his research on the benefits of mountain ash Kelud, in the Land lab, Faculty of Agriculture, Integrated Campus in St. Louis. Her research is also an activity of a series of events in St. Louis Disasters Abu Mount Kelud, which has been conducted since Tuesday (18/2) until March 2014.

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According to Gunawan, benefits or positive impact of the volcanic ash was known after he and his team conducted a study of volcanic ash from the eruption of Mount Merapi in 2010. Thus, the history of the Merapi volcano research results will be repeated again in the volcanic ash from the eruption of Mount Kelud. “The difference is only one, ash Kelud was finer size than Merapi ash. Abu Kelud was the size of the fine as clay or clay with a diameter below 0.002 millimeter, “he said.

Gunawan also said that the ash Kelud it becomes finer because he cover longer distances, which is about 200 kilometers more. In addition, because it is more subtle, sand content is not carried on the wind. So from that, ash Kelud own advantages over Mount Merapi ash utilization. “Abu finer it easier to bind water. Thus also, the time required for processing into fertilizer plants, and materials to improve soil properties will be shorter. Because he had been separated from other materials, such as sand, “he said.

Agriculture Lecturer UMY then continued in more detail the results he gets out of the ashes of Mount Merapi. According to him, the positive influence of volcanic ash that could be seen from three sides, namely in terms of chemistry, physics, and civil engineering. In terms of the chemical can be known that volcanic ash contains considerable mineral reserves.

“Even the possibility also contains magnesium and serum that could be a source of nutrients for agriculture. But earlier, it had experienced lapukan ash, which is the process of releasing the elements contained in volcanic ash, so regardless of the primary element. Then the new element that could be used for agriculture, “he said.

Then in terms of physics, this volcanic ash has its advantages can improve soil and water-binding properties, or can improve adhesion of soil. Thus, if used in sandy soils will easily absorb water. “While the civil engineering can be used for construction materials, as well as composite material for cement mixture. Mix grout with volcanic ash can reduce the material of the cement itself to 10 percent. And the resulting mixtures are also quite nice, until he could have the power load of 150kg unity, “he said.

As for the study of volcanic ash from the eruption of Mount Kelud alone, according Gunawan will first be examined on the distribution of ashes, the physical properties of texture or particle diameter distribution of the soil, its ability to store water, and measuring the pH or acidity level. “Is the pH is about 7 or not. Because yesterday we measure pH of about 5 and a half, and that means it does not interfere with the plants. So we also hope that the ashes of Kelud can also be used for things that are useful, “he said.

Another thing which is also the advantages of this is ash Kelud Kelud volcanic ash from more humid, because he is hygroscopic or readily absorbs moisture environment. Additionally, too much iron mineral content, and water content it contains in dry conditions could reach 8 to 10 percent. “This means that Kelud ash can be used to enrich the soil and agriculture.

Kelud ash also contains Fe (iron), Mn (manganese), Si (silicate), Al (aluminum), Ca (calcium), K (potassium), and P (phosphorus). So this ash when it becomes fertilizer, can be a long-term backup. And the plan, we will make this Kelud ash as research material for the manufacture of fertilizer pellets, “he said.

The research carried out since Monday (17/2) this involves 14 teams, consisting of Agriculture, Civil Engineering and Mechanical Engineering. As for the ash samples Kelud was taken specifically from over the tiles with a specific gravity of 2.8 g / cm3. And this research is also likely to take about 2.5 years, because it also involves research in the field of civil engineering and mechanical engineering.

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