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All Journal Journal of Aquaculture Science Tomini Journal of Aquatic Science
Dini Alvateha
Universitas Brawijaya
Agriculture, Biological Sciences & Forestry

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Efforts to Reduce Organic Matter In Shrimp Aquaculture Wastewater With Various Bacterial Consortium Trademarks Diana Arfiati; Shofiyatul lailiyah; Rizky Kusma Pratiwi; Dini Alvateha; Fidhiyah Dita Dahria Aisyah; Karina Farkha Dina
Journal of Aquaculture Science Vol 6 No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.162

Abstract

Shrimp aquaculture wastewater after the end of the rearing period has a high total organic matter (TOM) content of up to 87.74 mg/L. If the wastewater is disposed of directly without any efforts to reduce or treatment, it will disturb public waters ecosystem because of the high organic matter. The aim of this study was to determine the rate of reduce of organic matter in pond aquaculture waste. The study was carried out in January 2021. Pond wastewater samples were taken from the Tambak at the end of the maintenance period (120 days of maintenance). The trademarks of the bacterial consortium are EM4, Bio HS, BIO Prisma, Starbio plus, BIO2000, and Biolet. The experimental research was arranged in a completely randomized design with 6 treatments and 4 replications. Each treatment was filled with 2 liters of wastewater plus 6 ml of a liquid bacterial consortium. As for the solid bacterial consortium, 1 gram/L was added. Measurements of total organic matter, temperature, pH, dissolved oxygen, salinity and carbon dioxide were carried out every 24 hours for 72 hours of observation. The results showed that during 72 hours of immersion the highest percent reduction in organic matter was in treatment E (BIO 2000) of 95% (87.74 mg/L to 4.11 mg/L). The lowest percentage decrease was in treatment D (Starbio plus) of 83.4% (87.74 mg/L to 14.54 mg/L). However, in general 6 types of bacterial consortium trademarks can degrade organic matter. The levels of temperature, pH, dissolved oxygen and salinity are in optimum conditions, while carbon dioxide exceeds the threshold caused by the high activity of overhauling organic matter by bacteria. The conclusion was obtained that the trademark of the bacterial consortium BIO2000 was the most effective in reducing organic matter for 72 hours.Keyword : Shirmp wastewater, Tambak, Bioremediation, Organic Matter, Microorganis
The performance of Chlorella vulgaris growth on mass-scale cultivation Dini Alvateha; Siska Falentina; Rarasrum Dyah Kasitowati; Sutianto Pratama Suherman; Luthfiana Aprilianita Sari; Sulastri Arsad
Tomini Journal of Aquatic Science VOLUME 1 ISSUE 2, NOVEMBER 2020
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (627.461 KB) | DOI: 10.37905/tjas.v1i2.8123

Abstract

Phytoplankton have many benefits, including as a primary producer, natural food, bioindicator, and water pollution treatment. For this reason, their availability needs to be managed, one of which is through cultivation. The purpose of this study was to analyze the mass scale cultivation of Chlorella vulgaris. The research was conducted at the Technical Implementation Unit of Freshwater and Brackish Water Aquaculture, Situbondo, using a descriptive method. The data were analyzed statistically using MS. Excel 2016 software, and a multiple linear regression test was carried out to determine the effect of water quality parameters on the growth of C. vulgaris using the SPSS 16.0 application. The cultivation process started from strain preparation, water preparation, tank and culture media preparation, inoculation, fertilization, and then harvesting. The initial density of C. vulgaris used was 145x104 Cell. mL-1 in tank 1 and 188x104 Cell. mL-1 in tank 2. The results showed that the cell density value of C. vulgaris increased every day until it entered the exponential phase, namely on the 4th day of the culture activity, which was 507 x 104 in tank 1 and 536 x 104 Cell. mL-1 in tank 2. Furthermore, the value of water quality parameters that affected the growth of C. vulgaris in tank 1 and tank 2 was dissolved oxygen of 4.82-6.97 mg. L-1, pH 8.2-9.1, transparency of 20-45 cm, temperature was 26.8-28.2 oC, nitrate of 0.10-0.50 mg. L-1, phosphate of 0.75-2 mg. L-1, and salinity of 30-39 ppt.
Co-Authors Diana Arfiati Fidhiyah Dita Dahria Aisyah Karina Farkha Dina Luthfiana Aprilianita Sari Rarasrum Dyah Kasitowati Rizky Kusma Pratiwi Shofiyatul lailiyah Siska Falentina Suherman, Sutianto Pratama Sulastri Arsad