Andi Massoeang Abdillah
Bogor Agricultural University - Ehime University

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Analisis Kebutuhan Kebijakan Pemerintah Kabupaten dalam Mengimplementasikan Keputusan Mahkamah Konstitusi No. 35/PUU-X/2012 Andi Massoeang Abdillah; Yusran Jusuf Jusuf; M.Asar Said Mahbub
Jurnal Hutan dan Masyarakat VOLUME 10 NOMOR 1, JULI 2018
Publisher : Fakultas Kehutanan, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.754 KB) | DOI: 10.24259/jhm.v0i0.3105

Abstract

This study aims to : (1)To identify Kajang eligibilities of customary law, based on the law 41 of 1999 (article 67) to be recognized by local authorities as before customaty law determination as indigenous forests.  (2)To identify the obstacles in the process of a  strengthening the community of Kajang customary law in Bulukumba regency.(3)To formulate policy needed in maintaining the existence of indigenous community and forest conservation. This study was conducted in the village of Tana Toa, Subdistrict of Kajang, Bulukumba, South Sulawesi province. Descriptive analysis was used to determine the condition of Kajang customary law, in accordance with the terms used to confirm  customary law communities by the local governments, obstacles in the process of strengthening the customary law community, as well as to describe perceptions of  stakeholders in relation with constitutional courts decisions. Policy analysis was used to form policies needed in maintaining the existence of indigenous communities and forest conservation. The results of the study showed that Kajang customary law qualified and has been confirmed as customary law communities. The form of policies needed were policies that could synergize government and customary law in managing and conserving forests, proportional policies and necessary technical policies that could regulate the management and procurement of forest resources by Kajang customary law community. The perception of stakeholders were varied, but all supporting the indigenous forests to be passed through local legislation. On the other hand the stakeholders expected the government could assist in the process and remain as a driver and controller of customary law communities in the management of forest resources.
Adsorptive Removal of Mercury by Zeolites and Montmorillonite Andi Massoeang Abdillah; Zaenal Abidin; Widiatmaka Widiatmaka; Erni Johan; Naoto Matsue
Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Vol. 9 No. 3 (2019): Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan
Publisher : Graduate School Bogor Agricultural University (SPs IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jpsl.9.3.797-801

Abstract

The environmental pollution by the drainage containing heavy metals such as Hg is a serious problem in mining activities in Indonesia. We examined the effect of coexisting thiourea on the adsorptive removal of Hg by zeolites and montmorillonite. To a 100 mL of 10 mg/L (0.05 mM) HgCl2 solution in the absence and presence of 0.5 mM thiourea, different amounts of zeolite (A4, P or mordenite) or montmorillonite was added, shaken for 24 h, centrifuged, and supernatant Hg2+ concentration was measured. In the absence of thiourea, the ratio of the negative charges in the adsorbents to the positive charges in Hg2+, Ads/Hg ratio, needed to attain >80% Hg2+ removal were >70 for mordenite, >1625 for P, >600 for A4, and montmorillonite showed no Hg2+ adsorption. In contrast, in the presence of thiourea, nearly 100% removal was attained at lower Ads/Hg ratios: the ratios were 1 for montmorillonite, <10 for P and <18 for A4; the presence of thiourea had little effect for mordenite. These results indicate that Hg2+-thiourea complex has extremely high adsorption affinity for negative charges of montmorillonite, A4 and P, and the complex can fully penetrate into the interlayer space of montmorillonite. However, with increasing the Ads/Hg ratio, the Hg2+ removal percentage for montmorillonite, A4 and P decreased. Therefore, for the effective removal of  Hg2+ in the presence of thiourea, the choice of adsorbents and the dose of the adsorbents should be carefully determined.