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Rahmadi, Puji
Jurnal Harpodon Borneo
Agriculture, Biological Sciences & Forestry Environmental Science

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PASANG SURUT AIR PADA LAHAN BASAH : FUNGSI, RESTORASI, DAN PENGARUHNYA TERHADAP EKOLOGI Rahmadi, Puji; Suk-Mo, Lee
Jurnal Harpodon Borneo Vol 4, No 1 (2011): Volume 4 No 1 April 2011
Publisher : Jurnal Harpodon Borneo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.923 KB) | DOI: 10.35334/harpodon.v4i1.61

Abstract

Nowadays we were facing to the global warming which is causing climate changes. Global warming also promote by environmental degradation. Increment of human population and development on industrial realm are the main cause of environmental degradation. Wetland is one of environmental bufferwhich could enhance the environmental stress. Doing the wetland restoration is an effort to enhance ecological degradation. In this paper were discusses about wetland definition, functions, wetland restoration, effect of restoration and also some study cases of wetland restoration published by some researcher. Tidal Wetland Restoration itself could be defined as an actions taken in a converted or degraded natural wetland that result in the reestablishment of ecological processes, functions, and biotic/abiotic linkages and lead to a persistent, resilient system integrated within its landscape (Lewis, 1989). It must expect restoration could bring the better effluence to the ecology, however some time it’s not just happen like ideally. Some of the restoration activity could promote and lead the ecological degradation in the neighbor habitat from which restoration activity was conducted. Therefore to enhance the sustainability, restoration and good management should be applied in order and in good monitoring.  Keywords  :  wetland, ecological, restoration, sustainability.
EMERGY; DEFINISI DAN APLIKASINYA DALAM MENDUKUNG PENGAMBILAN KEPUTUSAN UNTUK KEGIATAN KONSERVASI Rahmadi, Puji; Suk-Mo, Lee
Jurnal Harpodon Borneo Vol 5, No 1 (2012): Volume 5 No 1 April 2012
Publisher : Jurnal Harpodon Borneo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.968 KB) | DOI: 10.35334/harpodon.v5i1.77

Abstract

This paper was addressed to introducing new method of measuring the real wealth of environmental value either in the ecological point of view or economically. The new method proposed here was “Emergy analysis” (the available energy of one kind previously used up directly and indirectly to make a production or service). The Emergy analysis was used to gain overviews of the relationship between economy and ecology in relation to the decision making whether the environmental need conservations or not. In this paper some Emergy terminology was introduced as well as the definition of Emergy itself. Some of the Emergy terminology introduced here were; Energy, emergy, solar transformity, exergy, empower and EmValue. Procedure to do Emergy analysis was clearly discussed here and followed by Emergy indices calculation. Based on the result of Emergy indices calculations, we will get recommendation to make the suitable decision about a system, environmental or even production activity. Keywords : Emergy, transformity, Emergy-index, conservation.
INHIBISI PEMBENTUKAN SENYAWA BROMAT MELALUI OXIDASI AMONIA PADA PROSES OZONISASI AIR LAUT DALAM BUDIDAYA PERIKANAN SISTEM SIRKULASI (BDPSS) Rahmadi, Puji; Salim, Gazali
Jurnal Harpodon Borneo Vol 5, No 2 (2012): Volume 5 No 2 Oktober 2012
Publisher : Jurnal Harpodon Borneo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.001 KB) | DOI: 10.35334/harpodon.v5i2.88

Abstract

Aplikasi penggunaan ozon pada kegiatan budidaya sistem sirkulasi adalah solusi paling efektif dalam pengolahan air dan untuk menjaga kualitas air budidaya tersebut. Ozonisasi dapat menghasilkan proses brominasi dan juga mampu mengoksidasi konsentrasi amonia di dalam air laut untuk kemudian diuraikan menjadi senyawa yang lebih sederhana. Ozonasi juga menjadi solusi yang yang baik untuk menghilangkan amonia dari air laut. Lebih lanjut, amonia diduga mampu menjadi materi yang dapat menghambat (inhibisi) proses bromisasi ketika proses ozonasi air laut. Tujuan penelitian ini adalah untuk membuktikan proses yang terjadi pada saat ozonasi air laut. Hasil dari penelitian ini menunjukkan bahwa selama masih terdapat amonia terkonsentrasi didalam air laut, maka proses brominasi bisa ditekan hingga mendekati nol. Dengan adanya amonia didalam air, proses reaksi antara bromine dan amonia (NH3) dapat terjadi begitu cepatnya sehingga dapat mencegah senyawa bromine berubah menjadi bromat. Oleh karena itulah proses oksidasi amonia dapat menjadi senyawa yang dapat menghambat terbentuknya dan terakumulasinya bromat yang bersifat racun itu di dalam air laut. Amonia selalu terbentuk didalam kegiatan budidaya, baik dari hasil ekskresi sisa metabolisme maupun dari sisa pakan, maka hal ini dipastikan dapat menjadi agen yang menghambat proses brominasi dan memberikan kepercayaan bahwa aplikasi ozon pada budidaya air laut adalah aman untuk dilakukan. Namun demikian, dalam praktek budidaya sekala massal, konsentrasi ozon, ammonia, dan bromat harus di perhatikan dengan teliti untuk mendapatkan hasil produksi yang optimal pada budidaya system sirkulasi.  Kata Kunci: Ozon, ammonia, bromat, budidaya sistem sirkulasi
Co-Authors Gazali Salim Suk-Mo, Lee