Biosistema para purificar aguas residuales del beneficio húmedo del café del distrito la coipa en al región cajamarca 2014
Garay Román, Juan Manuel
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One of the most common in the Peruvian jungle eyebrow shapes, is polluting the environment with waste water from wet processing of coffee, as they have done growers La Coipa district, province of San Ignacio, Cajamarca Region. The analysis showed pulping wastewater BOD: 7287 ppm and total solids (TS): 11355 ppm; waste water from coffee washing presented BOD: 5847 ppm and ST: 7977 ppm; both are discharged to streams of coffee farms, whose full impact was equal to 13134 ppm BOD, ST equivalent to 19332 ppm and pH about 5, as a result of exposure to lower carboxylic acids. Treatment for purification of these waters in time of campaign coffee harvest in April to September of each year, was made possible with the construction of a biosystem or wetland macrophytes planted as water hyacinth (Eichhornia crassipes), where the waters washing coffee is retained for 50 days. After this time, the water leaving the wetland had a BOD of 98 ppm and 148 ppm ST, which meets environmental standards set the maximum allowable limits used to throw water to the rivers and freshwater streams or rivers, which must not exceed a BOD of 100 ppm and 150 ppm ST. The biosystem with water hyacinth reached a BOD reduction of 86,57% and 98,14% ST.