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All Journal Jurnal Sapa Laut Makara Journal of Science
Adidharma, Mohammad Afdhal
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science

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SEBARAN LOGAM BERAT NIKEL (Ni) DALAM AIR DI PERAIRAN KECAMATAN MOLAWE KABUPATEN KONAWE UTARA Adidharma, Mohammad Afdhal; Emiyarti, .; Pratikino, A. Ginong
Jurnal Sapa Laut Vol 6, No 4: November 2021
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jsl.v6i4.21851

Abstract

Provinsi Sulawesi Tenggara dengan potensi cadangan Nikel sebesar 97,4 miliar ton, menjadikan Nikel sebagai komoditas utama pertambangannya. Potensi yang besar ini menjadi penyebab tingginya aktifitas eksploitasi tambang nikel di Sulawesi Tenggara, khususnya di Kecamatan Molawe Kabupaten Konawe Utara. Sistem penambangan terbuka yang masih marak digunakan, menyebabkan material padat yang membawa unsur logam berat dari daratan masuk ke perairan. Penelitian ini bertujuan untuk mengetahui kadar logam berat nikel pada air di Perairan Kecamatan Molawe. Pengambilan data dilakukan pada Bulan Maret 2020 di Desa Tapuemea dan Desa Tapunggaya, Kecamatan Molawe. Sampel air dianalisis di UPTD Laboratorium Dinas Lingkungan Hidup Provinsi Sulawesi Tenggara menggunakan metode Spektrofotometri Serapan Atom (SSA). Hasil yang diperoleh kadar nikel pada air di perairan Kecamatan Molawe berkisar antara 0,003 hingga 0,017 mg/l, dan hasil tersebut masih dibawah ambang batas baku mutu KMNLH No. 51 Tahun 2004.Kata kunci: Nikel, Air, Molawe.
Removal of heavy metals from motorcycle washing wastewater using a zeolite-embedded sheet Takarina, Noverita Dian; Ambarsari, Hanies; Pramudyawardhani, Sekar Arum; Rahmawati, Maria Fatima Niken Kris; Johan, Erni; Matsue, Naoto; Adidharma, Mohammad Afdhal
Makara Journal of Science
Publisher : UI Scholars Hub

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Abstract

The increased use of motorcycles for transportation has heightened environmental challenges related to their washing, particularly the discharge of untreated wastewater containing heavy metals, such as copper (Cu) and lead (Pb), into drainage systems. This study explored the effectiveness of zeolite-embedded sheets (ZESs) in the removal of these pollutants from motorcycle washing wastewater. ZESs were prepared through treatment of nonwoven sheets with Linder Type A (LTA Zeolite) powder and heat treatment, washing, and drying. Characterization was performed via scanning electron microscopy with energy-dispersive X-ray spectroscopy, and Fourier transform infrared spectroscopy. Over a 60 min adsorption period, the ZES achieved removal efficiencies of 40% for Cu after 30 min and 70% for Pb after 60 min. The results confirm that ZESs are a promising adsorbent for heavy-metal remediation and particularly effective for lead removal in motorcycle washing wastewater.
Co-Authors Emiyarti, . Hanies Ambarsari Johan, Erni Matsue, Naoto Noverita Dian Takarina Dian Takarina Pramudyawardhani, Sekar Arum Pratikino, A. Ginong Rahmawati, Maria Fatima Niken Kris