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      Peningkatan Laju Redoks Sedimen TambakUdang Vannamei (Litopenaeus vannamei) Berbasis Penggunaan Bahan Oksidator Kimia

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      Date
      2023-08-25
      Author
      Wahyuno, Adam Arif
      Nirmala, Kukuh
      Supriyono, Eddy
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      Abstract
      Budidaya udang vannamei (Litopenaeus vannamei) dihadapkan pada permasalah yaitu belum mampunya memenuhi permintaan yang tinggi sehingga kegiatan budidaya yang berjalan dilakukan dengan padat tebar yang tinggi, padat tebar yang tinggi ini menyebabkan banyaknya limbah yang dihasilkan. Tingginya limbah yang dihasilkan menyebabkan buruknya kualitas air dan sedimen sehiingga perlu dicarikan solusi untuk menangani masalah ini. Salah satu solusi untuk mengurangi limbah yang terendap di sedimen tambak adalah dengan menambahkan bahan kimia oksidator seperti KMnO₄ dan H₂O₂. Penambahan bahan oksidator dapat merubah bahan organik yang berbahaya menjadi aman untuk udang dengan cara pertukaran elektron. Tujuan penelitian ini adalah mengetahui pengaruh pemberian bahan oksidator KMnO₄ dan H₂O₂ dengan dosis yang berbeda terhadap laju redoks, total bahan organik, konsumsi oksigen, dan tekstur sedimen tambak. Penelitian ini dilakukan di Laboratorium Lingkungan Akuakultur, Departemen Budidaya Perairan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor. Sampel sedimen yang berasal dari Tambak Pinang Gading dimasukkan kedalam botol sampel dengan ukuran diameter 4 cm dan tinggi 6 cm sebanyak 300 gram. Sampel diberi perlakuan Kontrol, penambahan KMnO₄ 0,15 mg, KMnO₄ 0,3 mg, H₂O₂ 11 ml, dan H₂O₂ 22 ml. Selama 40 hari sampel diinkubasi dan diukur nilai potensial redoks pagi sebelum dan sesudah aduk, potensial redoks siang sebelum dan sesudah aduk, konsumsi oksigen sedimen, total karbon organik, dan tekstur tanah. Hasil penelitian menunjukkan hasil terbaik terdapat pada perlakuan KMnO₄ 0,3 mg dengan peningkatan nilai redoks sekitar 60 mV.
       
      Vannamei shrimp cultivation is faced with a problem, namely the inability to meet high demand so that ongoing cultivation activities are carried out with high stocking densities, this high stocking density causes a lot of waste to be produced. The high amount of waste generated causes poor water and sediment quality, so it is necessary to find a solution to deal with this problem. One solution to reduce waste that settles in pond sediments is to add oxidizing chemicals such as KMnO₄ and H₂O₂. The addition of oxidizing agents can change harmful organic matter to be safe for shrimp by exchanging electrons. The purpose of this study was to determine the effect of the oxidizing agent KMnO₄ and H₂O₂ at different doses on the redox rate, total organic matter, oxygen consumption, and pond sediment texture. This research was conducted at the Aquaculture Environmental Laboratory, Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Bogor Agricultural University. Sediment samples from Tambak Pinang Gading were put into a sample bottle with a diameter of 4 cm and a height of 6 cm as much as 300 grams. Samples were given control treatment, adding 0.15 mg KMnO₄, 0.3 mg KMnO₄, 11 ml H₂O₂, and 22 ml H₂O₂. For 40 days the samples were incubated and the redoks potential values were measured in the morning before and after shaking, redoks potential in the afternoon before and after shaking, sediment oxygen consumption, total organic carbon, and soil texture. The results showed that the best results were found in the H₂O₂ treatment with an increase in the redoks value of about 40 mV.
       
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      http://repository.ipb.ac.id/handle/123456789/124366
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      • UT - Aquaculture [2191]

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