Journal of Energy & Environmental Sciences https://www.journals.cincader.org/index.php/eesj <p><em>Journal of Energy &amp; Environmental Sciences</em> is a peer-reviewed, international and interdisciplinary research journal that focuses on all aspects of energy and environmental sciences. <em>Journal of Energy &amp; Environmental Sciences</em> publishes issues twice a year since 2017. </p> <p>All articles published are Open Access for readers and an article processing charge (APC) applies to papers accepted after peer review.</p> en-US journals@cincader.org (Luz Gonzales) info@cincader.org (Gloria Julca) Mon, 04 Jan 2021 00:00:00 +0000 OJS 3.3.0.6 http://blogs.law.harvard.edu/tech/rss 60 Environmental Education and its relationship with Solid Waste in the High School Miguel Grau from the Paramonga district [Educación Ambiental y su relación con los Residuos Sólidos en la I.E. Miguel Grau del distrito de Paramonga] https://www.journals.cincader.org/index.php/eesj/article/view/44 <p>This research seeks relationship between Environmental Education and solid waste in the High School Miguel Grau from the Paramonga district, Barranca province. It is worth mentioning that a schedule was developed with the participation of the principal, students, teachers, administrative staff and APAFA. The general objective is to determine how environmental education influences students. During the development of the investigation, a sample of 30 students was taken and questions were asked about recycling, segregation, final disposal and care of the environment. It is a basic cross-sectional type and a descriptive-correlational&nbsp; design was used. The data obtained were processed with descriptive and inferential statistics. Determining the answers to the questions that the majority throws the garbage in the classroom with 40%, throws it in the yard with 36.7%, there is no bin presence 96.6%, does not use a bin 96.6%, does not recycle the garbage 96.6%; in solid waste classification, the majority classify solid, liquid and gaseous 76.67%, organic and inorganic 76.7%, dangerous and non-dangerous with 83.3%, domiciliary with 50%; After learning about environmental care, the results were obtained from the cylinders to be taken to the landfill with 83.3% and organic waste with 50%; in environmental awareness, the majority throws in the cylinders with 66.7% and the presence of cans with 96.7%. What is interpreted that the student becomes aware in the care of the environment and recycles.</p> Wilfredo Tamay Felipa , Jesús More López, José Yovera Saldarriaga, Ronald Rodríguez Espinoza, Diómedes Sánchez Moreno, Juan Ipanaqué Roña, Dante Cruz Nieto, Héctor Castro Bartolomé Copyright (c) 2021 https://creativecommons.org/licenses/by/4.0 https://www.journals.cincader.org/index.php/eesj/article/view/44 Sun, 07 Feb 2021 00:00:00 +0000 Influence of the plastic law on the consumption of Biodegradable containers in the Peruvian Population [Educación Influencia de la ley de plásticos en el consumo de envases biodegradables en la población peruana] https://www.journals.cincader.org/index.php/eesj/article/view/45 <p>The pollution is a phenomenon that occurs in every country on the planet, which leads to design strategies to mitigate it. Peru is no stranger to this and generates more than seven and a half million tons of solid waste per year, from which 64% comes from households and the average annual consumption per citizen is 30 kg of plastic. Worrying situation that led the government to approve Law N° 30884 called Law that Regulates Single-use Plastic and Disposable Containers or Containers. The problem was raised: How does the application of the Plastic Law influence the consumption of biodegradable packaging in the population? For this study, a survey was applied to a representative sample made up of randomly chosen consumers in various areas of the country. The results show that despite having carried out campaigns and strategies to stop using plastic bags and tecnopor containers, there are no relevant changes in consumer behavior.</p> Flor Angélica Lavanda Reyes Copyright (c) 2021 https://creativecommons.org/licenses/by/4.0 https://www.journals.cincader.org/index.php/eesj/article/view/45 Tue, 04 May 2021 00:00:00 +0000 Influence Modeling and optimization of sulphide removal by catalytic oxidation of tannery fur effluents [Modelamiento y optimización de la remoción de sulfuros por oxidación catalítica de efluentes de pelambre de curtiduría] https://www.journals.cincader.org/index.php/eesj/article/view/126 <p>The residual effluents from the fur stage of the bovine leather tannery industry are characterized by having a high concentration of sulfides. The objective of this study was to evaluate the effects of aeration time and pH in the residual effluents of the leather stage of the tannery, with the catalysts MnO<sub>2</sub> and MnSO<sub>4</sub> separately; as well as, determine adjustment models through the response surface methodology and the optimal intervals of the best conditions that lead to a higher percentage of sulfide removal. For this reason, the sulphide removal percentage was evaluated from samples extracted from the pellet stage, by means of catalytic oxidation treatments; varying the catalyst, pH and aeration time. The catalysts used were manganese dioxide (MnO<sub>2</sub>) and manganese sulfate (MnSO<sub>4</sub>) and for each catalyst the pH was varied in the values ​​of 8.5; 9.5; 10.2 and 13.4; likewise, the aeration time was varied in the values ​​of 30, 60, 90, 120, 150, 180, 210 and 240 minutes. 64 treatments were carried out, with 3 repetitions each, reporting the average values ​​of the sulfide removal percentage. The response surface methodology was used to adjust the correlation of the variables to a quadratic model; Likewise, through contour graphs the regions with the highest percentage of sulfide removal were easily identified and by superimposing contour graphs the optimal ranges of the variables pH and aeration time were determined for removal percentages greater than 98%. Based on this evaluation, it is proposed for treatments with manganese dioxide, aeration times between 160 to 240 min and pH between 8.5 to 9 and for treatments with manganese sulfate, aeration times between 110 to 240 min and pH between 8.5 to 9.8. The coefficients of multiple determination R2 for the models with catalyst MnO<sub>2</sub> and MnSO<sub>4</sub> were 97.51% and 95.12% respectively. With the MnSO<sub>4</sub> catalyst, higher removal percentages were achieved at a shorter aeration time, compared to the treatments carried out with the MnO<sub>2</sub> catalyst.</p> Jorge Luis Mendoza Bobadilla, Adolfo Enrique Guerrero Escobedo, Walter Moreno Eustaquio, Marina Ponce Zavaleta, Luisa Carbajo Arteaga Copyright (c) 2021 Journal of Energy & Environmental Sciences https://creativecommons.org/licenses/by/4.0 https://www.journals.cincader.org/index.php/eesj/article/view/126 Sun, 13 Jun 2021 00:00:00 +0000 Growth evaluation of the microalgae Chlorella sp. with tannery effluent from the soaking stage [Evaluación del crecimiento de la microalga Chlorella sp. con efluente de curtiembre de la etapa de remojo] https://www.journals.cincader.org/index.php/eesj/article/view/129 <p>This research sought to determine the ideal percentage of soaking water from the tannery industry as a nutrient source for the microalgae <em>Chlorella sp</em>.; evaluating the effect of the initial concentration of 15, 30, 45, 60 and 75% of soaking water in contact with the microalgae in a first phase and a new evaluation with 30, 45 and 60% of soaking water using the adapted microalgae from the first phase into the second. Cell density over time was determined by cell counting in a neubauer chamber until reaching the stationary phase in all samples. The results show that the microalgae adapted to the effluent used present growth kinetics more similar to that of microalgae grown in a conventional medium. In the same way, it was determined that a better cell growth was obtained with a 30% concentration of soaking water. It is concluded that the use of soaking water is an efficient way to cultivate microalgae, thus helping to reduce pollution from tannery effluents.</p> Jorge Luis Mendoza Bobadilla, Adolfo Enrique Guerrero Escobedo, Carlos Vasquez Blas, Astrid Alfaro Flores, Giancarlo Flores Quiñones Copyright (c) 2021 Journal of Energy & Environmental Sciences https://creativecommons.org/licenses/by/4.0 https://www.journals.cincader.org/index.php/eesj/article/view/129 Mon, 28 Jun 2021 00:00:00 +0000