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Pemberdayaan Siswa dalam Pengolahan Sampah Organik menjadi Pupuk Kompos untuk Menanamkan Literasi Lingkungan Riva Ismawati; Rina Rahayu
Jurnal Pengabdian KOLABORATIF Vol. 2 No. 1 (2024): January
Publisher : Faculty of Engineering, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jpk.v2i1.7442

Abstract

Education needs to play a role in overcoming environmental problems by forming environmentally literate individuals. Environmentally literate individuals are individuals who are responsible for their behavior, respect the environment, and understand the problems that occur in the environment. Therefore, environmental literacy needs to be instilled and trained from an early age. It is known that students are not aware of various environmental problems, and efforts to preserve the environment, environmental education has not been integrated into classroom learning, and the absence of waste management practices in schools makes students' environmental literacy low. The methods used in PKM include (a) case studies and discussions, and (b) the practice of making compost and using it to fertilize plants. PKM activities begin with contracts and at the end of the activity, an evaluation is carried out to find out the achievements of PKM implementation. PKM activities were carried out in two partner schools namely SD Muhammadiyah 2 Alternative and SD Negeri Keramat 5 Magelang. Participants who are students from the two partner schools have understood environmental issues, and waste management as an effort to preserve the environment, and are skilled in processing organic waste into compost. Participants showed interest and enthusiasm during the PKM activities.
Potential Utilization of Lamtoro Leaves (Leucaena leucocephala) as Natural Coagulants Riva Ismawati; Rina Rahayu; Rizqa Puspitarini
Indonesian Journal of Science and Education Vol. 7 No. 1 (2023): Indonesian Journal of Science and Education
Publisher : Universitas Tidar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31002/ijose.v7i1.566

Abstract

Water is a vital element for human beings. However, there are still limited clean water services in Indonesia. Raw water treatment is needed to ensure the availability of clean water. One of the methods is by using the coagulation process. The coagulant functions to speed up the coagulation process. Although effective in water treatment, chemical coagulants have some disadvantages. Therefore, it is necessary to develop natural coagulants to overcome the weakness of chemical ones. Natural ingredients can be used as coagulants if they have many macromolecules. Lamtoro leaves are one of the natural materials that are only used to feed the animal. This research aims to examine the potential of lamtoro leaf as a natural coagulant in terms of its content. The research is conducted by testing lamtoro leaf powder using Fourier Transform Infrared Spectroscopy and proximate test. Infrared spectra of lamtoro leaves show the presence of absorption peaks for specific groups of carbohydrate and protein compounds. The proximate test results show that lamtoro leaves contain 24.7% protein and 53.71% carbohydrates. The high protein and carbohydrate contents in lamtoro leaves enable them to be used as a natural coagulant.