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Pemanfaatan Biosorben Cangkang Pensi sebagai Penyerap Logam Timbal (Pb) Safitri, Nadila; Dwipa Yamesa Away, Romy; Kumala Sari, Trisna
Jurnal Pendidikan Tambusai Vol. 8 No. 2 (2024)
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

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Abstract

Pencemaran lingkungan merupakan masalah serius yang memerlukan solusi efektif dan ramah lingkungan dalam kehidupan manusia. Pencemaran ini biasanya disebabkan oleh adanya limbah dari industri pabrik. Salah satu limbah yang banyak ditemukan dan berbahaya bagi lingkungan adalah limbah logam timbal (Pb). Penelitian ini bertujuan untuk memanfaatkan cangkang pensi sebagai biosorben penyerap limbah logam Pb. Metode yang digunakan pada penelitian ini adalah adsorpsi sistem batch dengan melakukan beberapa variasi, yaitu variasi massa biosorben dan konsentrasi adsorbat. Hasil penelitian menunjukkan bahwa massa biosorben optimum sebesar 0,05 gram dengan nilai kapasitas penyerapan 15,8 mg/g dan konsentrasi adsorbat optimum 50 ppm dengan nilai kapasitas penyerapan 16,5 mg/g. Cangkang pensi memiliki potensial yang besar untuk menghilangkan limbah logam Pb di dalam larutan.
REFORMULASI HUKUM DAN PERBAIKAN ETIKA TERHADAP KEPOLISIAN ATAS PELANGGARAN PENGGUNAAN GAS AIR MATA STADION KANJURUHAN Akbar, Sahda Saraswati; Safitri, Nadila; Yulistio, Muhammad Raihan; Fath, Al; Maula, Putri Ni’matul
Jurnal Hukum Statuta Vol 2 No 1 (2022): Volume 2, Nomor 1, Desember 2022
Publisher : Fakultas Hukum Universitas Pembangunan Nasional Veteran Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35586/jhs.v2i1.9159

Abstract

The police as a state tool that functions to maintain security, maintain order, protect and serve the community should be able to provide protection to the community. However, what is happening now is quite the opposite. As happened at the Kanjuruhan stadium where the police in controlling the crowd actually committed human rights violations. Human rights violations committed by the police show that at this time the police have not been able to position themselves proportionally. The purpose of this study was to determine the legitimacy of the use of tear gas in controlling the crowd at the Kanjuruhan Stadium by the police and to find out the legal reformulation and ethical improvement of the violation of mass control at the Kanjuruhan Stadium by the police. This study uses a normative juridical research method with a statute approach and a conceptual approach regarding the rules that should be the basis for mass control carried out by the police. Based on the results of the study, in terms of the validity of the actions taken by the police, it was stated that they did not take into account the level of threat or the safety of the community. Therefore, the way that can be done by the police in order to build a civilian character and improve their image is to carry out legal reformulation and ethical improvement over the violation of the Kanjuruhan Stadium crowd control by the police. The recommendations that the author gives to the PSSI institution, the match organizers, the police, the general public to the government so that this paradox does not happen again.
TOPONYMY OF VILLAGE NAMES IN PENGABUAN DISTRICT, TANJUNG JABUNG BARAT DISTRICT: ETHNOLINGUISTIC STUDY Afria, Rengki; Meilani, Meilan; Safitri, Nadila; Yani, Yuni Apri
International Journal of Multidisciplinary Reseach Vol. 1 No. 3 (2025): Agustus
Publisher : International Journal of Multidisciplinary Reseach

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Abstract

This research was carried out with the aim of finding out about the origins of the village name and finding out the meaning of the village name. The basic problem that led to this research was knowing the origins and meaning contained in the naming of villages in Pengabuan sub-district. This research is descriptive in nature, where the researcher will describe what happens in the field. And this research uses qualitative methods so that data collection is not so complicated. The results of data analysis contained 13 data, including the use of embodiment aspects and social aspects. In the embodiment aspect, there is a natural environmental background in the form of plants and water settings in each village. In the social aspect, there are legendary stories where people carry out social interactions when carrying out daily activities