Daily Archives: August 21, 2015

  • Researchers introduced Nanomembranes to purify Wastewater of Olive Oil Plants

    Iranian researchers studied and compared the performance of various types of laboratorial and commercial membranes in purification of olive oil production plants. The researchers introduced a special arrangement of synthetic nanomembranes as the best system to obtain the highest efficiency in the purification process and to reduce the costs.

    Studies on purification of olive oil wastewater showed that membrane processes have the highest efficiency while their operational cost is reasonable. Therefore, various types of ultrafiltration with nanometric pores and nanofiltration membranes have been produced in this research, and they have been compared to the existing commercial samples in the field of olive oil purification process. The aim of the study was to find the best membrane to decrease the contamination as much as possible.

    According to the research, the membrane purification system with a consistent arrangement is better than other methods reported in the previous researches to purity olive oil wastewater. The unique arrangement proposed in this research has two stages of nanofiltration, and it is able to purify olive oil wastewater at very high efficiency. In general, the results showed significant decrease in the amount of pollution based on the environmental standards.

    Using nanofiltration membranes decreases the operational pressure in the final purification stage in comparison with reverse osmosis process. This fact has numerous positive effects by decreasing operational and investment costs.

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    Iranian researchers studied and compared the performance of various types of laboratorial and commercial membranes in purification of olive oil production plants. The researchers introduced a special arrangement of synthetic nanomembranes as the best system to obtain the highest... 
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  • Plagues and pests in Spain and Italy are opening markets for Greek olive oil

    Greece’s economy may be pressed on all sides by austerity measures, capital controls, and political forces within and without. But as the October start of the olive harvest approaches, some of the country’s entrepreneurs see a rare opportunity to take market share from Spain and Italy, the world’s No. 1 and No. 2 producers of olive oil.

    11Lousy weather, a mysterious tree disease, and a fruit fly that feasts on olives have decimated groves in Italy. Nearly a tenth of the 10 million trees in Puglia are infected with a disease that has been dubbed “olive ebola” (some scientists believe it is the bacterium called Xylella fastidiosa), which slowly kills the trees. As a result, Italy’s olive oil producers are bracing for another bad season, on the heels of a 34 percent decline in output in 2014-15, to 302,000 metric tons, according to data from the Madrid-based International Olive Council (IOC). Production in Spain fell by more than half, to 825,700 tons, in the most recent season, and will likely remain depressed due to a prolonged drought.

    Greece saw its output more than double in the previous season, to 300,000 tons, and the local industry is hopeful it will be close to that in the coming season. Thanks to this combination of factors, Greek olive oil is more competitive than ever, at least on a price basis. According to a June report from the council, wholesale prices for extra-virgin categories from Italy and Spain have surged 114 percent and 84 percent this year, respectively, to €5.66 ($6.25) per kilo and €3.59 per kilo. In contrast, prices for Greek oil have climbed just 24 percent, to €3.09 per kilo.

    The price advantage is helping small and midsize producers who make up most of Greece’s olive oil industry find new markets. The IOC reports Greek exports from the most recent harvest to the U.S., now the world’s top olive oil consumer, rose 28 percent from October 2014 through June of this year, while exports from Spain and Italy both dropped more than 50 percent.

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    Greece’s economy may be pressed on all sides by austerity measures, capital controls, and political forces within and without. But as the October start of the olive harvest approaches, some of the country’s entrepreneurs see a rare opportunity to take market share from Spain... 
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