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Volume 5, No. 2Revista de Investigación: Ciencia, Tecnología y Desarrollo

DOI:https://doi.org/10.17162/rictd.v5i2

Published December 18, 2019

Articulo Originales

  1. DANIEL LOVERA, JORDAN BASILIO VILLANUEVA, SARA ROMERO ASTUPIÑAN

    OPTIMIZATION OF THE GOLD FUSION OF A SULFURED MINERAL USING THE AURIFERA FUSION

    One of the sulphurated minerals from Arequipa, due to its complex analysis and its mineralogical richness, was suitable for our research study; At which 20 analyzes were carried out on the same sample, obtaining as a minor result 3,556 g/t and as a major law 9,000 g/t for this reason we found it convenient to optimize the analysis of this sulphurated sample by investigating the processing plants of the Chala - Arequipa district and others laboratories that apply the same methodology. The variation in the flux composition was observed for sulfur minerals, for this reason we decided to vary the percentage of the composition of our flux: 54.50% Litargirio, 25.50% Carbonate, 15% Silica and 5% Borax, obtaining better results and with a variation of minimum results in the laboratory of the School of Metallurgical Engineering of the National University of San Marcos. We show the calculations made for the flux using the Gold Fusion Number that allows us to systematize and compare the different trials of the various gold companies and thus obtain the most favorable trends to have an appropriate flux.

  2. BHENY TUYA CERNA, YRMA MINAYA SALINAS, FRANCISCO LEÓN HUERTA, MAXIMILIANO LOARTE RUBINA, MARTIN HUAMÁN CARRANZA

    INFLUENCE OF PREVENTIVE EDUCATION AGAINST THE NEGATIVE IMPACTS OF SOLAR RADIATION ON STUDENTS OF ELEMENTARY SCHOOL "JORGE BASADRE" AND “JEAN PIAGET” FROM HUARAZ CITY, ANCASH

    Exposure to solar radiation causes health damage; the consequences of excessive exposure are cumulative and can cause dermatological skin conditions such as cancer or burns. The area with the greatest exposure to UV rays is the Andean region, such is the case of the Ancash region, where the population is not informed or aware of the risks of exposure to the sun, being the most vulnerable children and adolescents who suffer Various outdoor educational activities. Given the importance of preventive education that contributes to awareness and awareness; a program is studied with elementary students of the I.E. "Jorge Basadre" and C.E.P. “Jean Piaget” of the city of Huaraz, in order to evaluate the change of behaviors and the generation of photoprevention actions for the development of a healthy life. The change in favorable attitudes to prevent harmful effects from prolonged exposure to solar radiation was evident.

  3. MARTÍN HUAMÁN CARRANZA, YUDITH FLORES ALBORNOZ, ROSARIO POLO SALAZAR, NINO ARAUJO JAMANCA, KIKO DEPAZ CELI

    DETERMINATION OF THE EFFICIENCY OF THE CONTINUOUS HANGING SPONGE FILTERS SYSTEM (DHS) IN THE WASTEWATER TREATMENT OF THE TOWN CENTER OF MARIAN – HUARAZ (PERU)

    Wastewater in rural areas is generally treated by septic tanks, because the system is the least complex. The application of reactors, with filters such as hardened sponges (also called DHS reactor) was developed as a secondary treatment of effluent from a septic tank. The filter media of the reactors have been made with epoxy resin polyurethane sponges. The systems were installed and developed at the sewage treatment plant in the town of Marian (Huaraz - Peru), where septic tank effluent was continuously entered into the DHS reactor. The systems were developed at a temperature that ranged from 11.25 to 15.30 ° C and a pH concentration of 7.3 to 8.11. DHS reactors showed pollutant removal efficiencies, the removal percentages of BOD5 were evaluated; and it was observed that sponges G1, G3 and G6 obtained the removal of 50%, then it was verified that the removal of organic matter was slow due to the adaptation of the microorganisms. Evaluating the COD removal percentages; it was observed that sponges G1, G3 and G6 showed removal percentage below 50%, the best efficiency obtained was in the elimination of total suspended solids (SST) where there were high removal values ​​close to 100%, demonstrating that in all sponges solids are retained. Sponge G6 showed the highest generation efficiency, unlike sponges G1 and G2, which also have high values; which demonstrates that these treatments do allow the oxidation of nitrogen compounds, generating Nitrate, a nutritive element for plant development. It is concluded that the parameters analyzed have been efficiently removed by the DHS system with hardened sponges.

  4. GAVILÁN SANTOS JENNY, ORTIZ CORREA YELITZA, ARANDA BACA KENER, STIVE FLORES-GÓMEZ

    MICROPLASTICS IN STOMACH OF "LIZA" Mugil cephalus, LIMA - PERÚ

    The plastics present in the rivers, lakes, seas and different terrestrial ecosystems, constitute a serious pollution problem and threaten the health of the different species that inhabit the mentioned ecosystems. As a result of this contamination, in the seas, fish confuse plastic with their food and consume them being contaminated, as indicated by several studies conducted in different parts of the world. The Mugil cephalus species known in Peru as "lisa", is widely consumed throughout the coast of Peru and common in the markets of Lima, given its importance, this study was conducted that aimed to determine the presence of microplastic in the stomach content of the resource. The stomach content of three fish acquired in the market of Villa María del Triunfo (Lima) was analyzed. The identification and quantification of the biological organisms consumed by the fish was performed, but the presence of plastic was also evaluated. According to the analysis, they effectively found several phytoplankton and zooplankton taxa, a common diet of this species, but we also show, after applying the buoyancy test with calcium chloride, the presence of microplastics in the stomach of fish. It is necessary that the state take actions to solve this problem of interest to the health of the sea and consumers in Peru.

  5. ERLIN NUÑEZ MORALES, NEMIAS SABOYA RIOS, MILDA CRUZ HUARANGA

    PHYTOREMEDIATION THROUGH THE PALUSTRE AND FLOATING SPECIES, Zantedeschia aethiopica AND Eichhornia crassipes IN THE TREATMENT OF DOMESTIC WASTEWATER IN THE AREA OF THE NATURAL REGION QUECHUA-CAJAMARCA

    The purpose of the research was to evaluate the efficiency of the phytoremediation system by means of the palustre (Zantedeschia aethiopica) and floating (Eichhornia crassipes) species in the treatment of domestic wastewater in the natural Quechua-Cajamarca region, for which the catchment point was located and the location of the project, the treatment system was subsequently designed and implemented considering infiltrations in the horizontal subsurface wetland that contained the substrate, the water to be treated, the Zantedeschia aethiopica species with the measures (width = 1.16 m, length = 2.32 m, height = 0.5 m) followed by the surface wetland composed of the water to be treated and the species Eichhornia crassipes (width = 1.39 m, length = 2.78 m, height = 0.40 m). The treatment lasted 90 days, then the physicochemical and microbiological parameters were monitored at the entry and exit whose removal results gave Oils and fats 76%, BOD5 95%, COD 92%, SST 95%, turbidity 96%, N-NH3 64%, Conductivity 59%, and the lowest values ​​were Color 34% and CTT 22%. In the analysis, the LMP that did not meet only was CTT and the others did, however for the RCTs they met Oils and Fats, Color, Conductivity, temperature, pH, SST, turbidity, and those that did not meet N-NH3, BOD5, COD, OD and CTT. In conclusion, 70% removal efficiency was reached, the parameters that failed to achieve adequate removal to comply with the LMP and ECA completely indicate the need to implement a primary treatment.

  6. NADY LUMBA IDROGO, SUSAN ORIHUELA YAPIAS, LIZET PORRAS PIZARRO, MILDA CRUZ HUARANGA

    DISINFECTION OF WATER FOR HUMAN CONSUMPTION THROUGH THE USE OF A CLAY AND COLLOIDAL SILVER FILTER IN URBAN SECTOR OF LURIGANCHO-CHOSICA

    The importance of disinfection of drinking water is essential to prevent outbreaks of infectious and parasitic diseases. One method commonly used to purify water is by applying clay filters, the use of which is common in areas devoid of drinking water networks. In consideration of this, the objective of this research was to evaluate the disinfection of water in a sector of Carapongo (Lurigancho-Chosica) with the use of a clay filter with sawdust and colloidal silver. Prototype clay filter models of different sizes were made with 50% sawdust, then colloidal silver was added. In total, 5 filters of different sizes and thicknesses were designed, using 3 of them ceramic clay and 2 natural clay; after the molding of the filters, they were taken at high temperatures to form microporous membranes that fulfill the function of filters, to increase the filtration power, a colloidal silver solution was impregnated, the latter to inhibit the passage of bacteria. The experiment complied with the process of disinfection, purification and removal. The results of the analyzed water samples were compared with the environmental quality standards and the statistical analyzes showed favorable results in both the physical, chemical and bacteriological parameters, and showed that the filter improved the temperature by 2 ° C, favored the increase pH in 0.15 units, helped to reduce from 1979.44 to 1333.55 mg / L the Total Dissolved Solids (decreasing the turbidity level of the water), and the total coliforms and Escherichia coli (EC); The results show that the treatment method is effective, low cost and easy accessibility for housing.