AQUADEMIA

Volume 4, Issue 1, 2020

Research Article
Evaluating the Environmental Awareness and Practices of Senior High School Students: Basis for Environmental Education Program
Aquademia, 2020, 4(1), ep20012, https://doi.org/10.29333/aquademia/8219
ABSTRACT: Environmental education in the Philippines has been incorporated to different course curricula including life and physical sciences, social studies, geography, civics, and moral education. The aim of this study was to determine the relationship between the environmental awareness and practices of Filipino senior high school students during the year 2019 to serve as basis for environmental education program. This correlation quantitative study involved SHS students in a private educational institution in the Philippines through total population sampling and utilized the Environmental Awareness and Practice Questionnaires. The results revealed that the participants have “good” level of environmental awareness (x =3.89) while “poor” extent of environmental practice (x =3.47). Using the nonparametric correlation analysis, the coefficient of 0.663 which means a “positive correlation” between the two variables was obtained. This means that the level of environmental awareness of the senior high school students is significantly and substantially related with their extent of environmental practice. Based on the summary of findings, the researcher recommends the development of environmental education programs that will both aim to maintain and increase the understanding and capacities of the students with relation to environmental problems and environmental sustainability principles.
Research Article
Cognitive Factors Influencing the Environmental Practices of Students: Implication for Environmental Education
Aquademia, 2020, 4(1), ep20013, https://doi.org/10.29333/aquademia/8224
ABSTRACT: The purpose of the study was to determine the influence of cognitive factors (knowledge and attitudes) on the practice of students towards the environment. In the study four research questions were raised and one was hypothesized. A quantitative research with descriptive approach was utilized in the study. The population of the study comprised of 15,116 students in senior secondary schools two in Benin metropolis, Nigeria (private, state and Federal Government owned secondary schools). The sample size for the study was 255 students selected using multi-stage sampling technique. The techniques used were clusters, convenience and systematic random sampling techniques. The instrument for the study was a modified questionnaire with standard items that has been used for previous student environmental related studies. It was discovered in the study that majority of the respondents had low knowledge of waste disposal, wildlife conservation and green energy but they had high knowledge toward pollution control. It was also seen that most of the respondents had positive attitude towards the environment but indicated that they engage in unfriendly environmental practices. However, a hierarchical multiple regression revealed that the respondents knowledge and attitude did not significantly predict their environmental practices. Based on the low knowledge and poor environmental practices of the respondents, it was recommended that environmental education should be given priority in Nigeria educational system because without an environmentally smarter next generation policy makers, entrepreneurs and consumers, environmentally sustainable practices will be obsolete or given little priority.
Research Article
The Impact of Operational Conditions on Commercial Membranes using in Removing Nitrate from Drinking Water
Aquademia, 2020, 4(1), ep20014, https://doi.org/10.29333/aquademia/8225
ABSTRACT: It is a great advantage to reduce the energy requirement for the provision of consumable groundwater to an absolute minimum. Reverse osmosis (RO) and nanofiltration (NF) are two of the most commonly used technologies for desalination water to provide potable water with lowest energy consumption. However, there is still lack of a thorough comparison between these two methods providing the better option in different conditions. Therefore, in this paper, nitrate rejection and the effects of operation conditions on the performance of RO and NF systems are compared. Several wells in Zarch District, Iran, are polluted by nitrate and groundwater is a major drinking water source in the region. The aim of this research was to evaluate the efficiency of nitrate removal by two commercial membranes NF90 and BW30 (both Dow Filmtec) using natural water under different operating conditions. Experiments were conducted to assess the influence of temperature and pressure on nitrate removal by the membranes. The results indicated that BW30 (reverse osmosis) performs better removing nitrate than NF90 (Nano-filter). With a feed of 200 mg-NO3-.L-1 (as nitrate), only permeate from the BW30 membrane met the required quality standard for drinking purposes (50 mg-NO3-.L-1). When the feed concentration increased to 250 mg-NO3-.L-1, both membranes failed to achieve the standard in the permeate. The membranes showed similar nitrate removal behaviour under different applied temperatures and pressures. It was concluded that the BW30 membrane can be used to produce drinking water in the study area with influent concentrations below 200 mg-NO3.L-1.
Research Article
Prognosis of Hydro-Meteorological Attributes based on Simulation and Projection of Streamflow in a High-Altitude Basin using Hydrologiska Byråns Vattenbalansavdelning (HBV) Model
Aquademia, 2020, 4(1), ep20015, https://doi.org/10.29333/aquademia/8226
ABSTRACT: Subsistence of freshwater resources at high altitude regions has remained a paradox for stakeholder communities at both regional and global levels. To address such an issue, Hydrologiska Byråns Vattenbalansavdelning Light (hereafter HBV) model was used to assess hydro-meteorological shifts triggered under climate change scenarios in snow dominant region of Chitral river basin. The model performed well both during calibration and validation periods with Nash Sutcliffe Efficiency values of 0.91 and 0.81 respectively on daily time scale in the basin. The HBV was thereafter engaged for the projection of streamflow in the Chitral river basin using projected data of four statistically downscaled climate models with four emission scenarios for the 21st century. Multi-model ensemble projections of precipitation revealed an increase of up to 165% in monsoon inception period and an increase in temperature of up to 9.5°C in winter to summer transitioning period for the 2070‒2099 time slice under a high-end emission scenario. An increase of up to 122% in evapotranspiration was projected in the peak winter months for the 2070‒2099 time slice under the high-end emission scenario. Attributed to the significant increases in the temperature and the liquid precipitation, it was projected that basin streamflow had potential to increase by up to 182 % in the monsoon inception period for the 2070‒2099 time slice under the high-end emission scenario. It further indicated that precipitation might be falling as liquid rain most of the year, and snow will hardly accumulate in prognosticated future environements of the basin.
Letter to Editor
Mobile Learning in Higher Education: Unavoidable Alternative during COVID-19
Aquademia, 2020, 4(1), ep20016, https://doi.org/10.29333/aquademia/8227
ABSTRACT: Covid-19 is an acute respiratory disease caused by Coronavirus Sars-Cov-2. Declared recently as pandemic disease, Covid-19 has affected educational systems worldwide. Many countries around the world have closed educational institutions to reduce the spread of this pandemic. Hence, Education in high schools is facing unprecedented challenges.
This paper reflects on the role of mobile learning as remote teaching strategies sustaining student-centered learning.
The use of mobile learning allows learning anytime, anyplace, and anywhere. Mobile Learning is an unavoidable alternative during COVID-19.