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UPAYA PENURUNAN BAHAN ORGANIK AIR SISA BUDIDAYA UDANG VANAME (Litopenaeus vannamei) DENGAN KONSORSIUM BAKTERI DAN KEPADATAN Chlorella sp.YANG BERBEDA Pratiwi, Rizky kusma; Arfiati, Diana
Jurnal Pengabdian Perikanan Indonesia Vol 1 No 3 (2021): Jurnal Pengabdian Perikanan Indonesia
Publisher : Program Studi Budidaya Perairan Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppi.v1i3.341

Abstract

Pengolahan limbah cair sisa budidaya udang di tambak perlu dilakukan sebelum air limbah tersebut masuk ke perairan umum. Dalam proses penurunan bahan organik selalu diperoleh kadar CO2 yang tinggi bahkan melebihi ambang batas untuk perairan umum. Tujuan dari kegiatan ini yaitu untuk mendapatkan kadar bahan organik terendah dan mengetahui kepadatan terbaik dari mikroalga (Chlorella sp.) yang dapat menurunkan kadar CO2 sampai tingkat terendah dengan waktu tercepat. Metode penelitian adalah RAL dengan 6 perlakuan , 2 kontrol dan 3 ulangan. Masing-masing bak perlakuan diisi 4 liter air (sisa Budidaya Udang Vaname selama 118 hari) dan di tambahkan konsorsium bakteri 3 gram/L lalu ditambahkan mikroalga dengan kepadatan 104 sel/ml, 105 sel/ml dan 106 sel/ml. Pengamatan fisika kimia air dan mikroalga dilakukan setiap 6 jam selama 72 jam. Hasil penelitian menunjukkan semua perlakuan mengalami penurunan bahan organik yang nilainya hampir sama dengan kontrol. Kadar karbondioksida mengalami penurunan dari kadar 11,88 mg/ L menjadi 0 mg/L setelah 72 jam. Kadar bahan organik mengalami penurunan dari 39.2 mg/l menjadi 0.2 mg/l setelah 54 jam. Selama penelitian suhu berkisar antara 23 - 26°C, pH 7 - 9, oksigen terlarut 6,0 – 9,3 mg/l, salinitas 10 – 13 mg/l. Dapat disimpulkan bahwa bahan organik dapat menurun sampai dengan 99,7 % setelah 54 jam dan CO2 dapat menurun sampai 100 % setelah 72 jam. Apabila diperlukan penambahan mikroalga untuk membantu menurunkan kadar CO2, maka disarankan menggunakan kepadatan mikroalga 106 sel/ml atau 55.5 ml/L agar tidak terjadi blooming mikroalga di perairan umum.
Dynamics of Water Quality for Vannamei Shrimp Cultivation in Intensive Ponds in Coastal Areas Pratiwi, Rizky Kusma; Mahmudi, Mohammad; Faqih, Abdul Rahem; Arfiati, Diana
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.4322

Abstract

Cultivators increase production using intensive cultivation which applies stocking densities and feeding in high quantities, which triggers a decrease in water quality, both cultivation water and cultivation wastewater because it contains high levels of organic matter. Changes in water quality have an impact on plankton community structure. This research aims to determine the dynamics of the physical, chemical, and biological quality of cultivation media water and the disposal of vaname shrimp cultivation waste in Ujungpangkah District, Gresik Regency. The research was conducted in January 2023 using a survey method. Water and plankton samples were taken from reservoirs, ponds, and pond waste disposal sites. Sampling was carried out in vaname shrimp cultivation ponds in the Coastal Area of ​​Ujungpangkah District, Gresik Regency. The physical and chemical quality of water has a pattern of changes up and down but is relatively the same and stable every week. All of these water quality parameters show a pattern of change that is quite good for the growth of vaname shrimp, but in waste disposal, the parameters for nitrate, phosphate, ammonia, and TOM are above the quality standards. The highest abundance of plankton is in waste dumps, with the highest phytoplankton coming from the Bacillariophyta phylum (49%), while zooplankton comes from the Rotifera phylum (54%). Regular monitoring of water quality in ponds and waste disposal sites is required so that it remains stable and safe for the environment.
IMPLEMENTASI BUDIDAYA IKAN DAN SAYUR RAMAH LINGKUNGAN DI PONDOK PESANTREN DESA BANDARKIDUL, KEDIRI Alba, Cecep; Hidayat, Esa Fajar; Masriah, Andi; Nadiro, Vina Nur; Pratiwi, Rizky Kusma; Hadiana, Hadiana
Jurnal Abdi Insani Vol 12 No 10 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i10.2964

Abstract

A common problem encountered in densely populated residential areas is waste accumulation. The majority of this waste consists of organic and inorganic household refuse. While organic waste is polluting, it is biodegradable and decomposes relatively quickly. In contrast, inorganic waste—particularly plastics—requires an extensive period to decompose in the natural environment. Consequently, this community service program aims to recycle plastic waste so that it can be reused and even acquire economic value. The plastic material utilized is discarded single-use water gallon containers, which often accumulate and hold little to no resale value. The target participants of this program are the students (santri) of Pondok Pesantren Al-Ishlah in Bandarkidul Village, Kediri City. The method employed involves providing education and hands-on training in cultivating catfish (Clarias sp.) and water spinach (Ipomoea aquatica) within a single reused gallon container which is known as Budikdamlon (aquaculture using gallon). The training also covers maintenance practices up to the harvest stage. As members of the younger generation, it is expected that the trained students will serve as agents of change—youth who not only possess intellectual capacity but also actively implement their knowledge in alignment with religious values.