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All Journal Reaktor International Journal of Science and Engineering (IJSE) TEKNIK METANA Jurnal Ilmu Lingkungan Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Teknik Kimia USU JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Seminar Nasional Teknik Kimia Kejuangan Journal of Engineering and Technological Sciences Jurnal Riset Industri agriTECH Jurnal Kelautan Tropis Communications in Science and Technology Jurnal Abdi Masyarakat Indonesia Jurnal Teknik Kimia USU
I Nyoman Widiasa
Chemical Engineering Dept., Faculty Of Engineering, Universitas Diponegoro Jl. Prof. Soedarto SH Tembalang Semarang Telp./Fax. (024)7460058 / (024)76480675
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Public Health Other

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Journal : Reaktor

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Performance of An Aerated Wastewater Stabilization Pond for the Treatment of Cultivation Wastewater of Pacific White Shrimp (Litopenaeus vannamei) Grow-out Ponds Jannah, Rizkiyah Fatikhatul; Ratnawati, Ratnawati; Sunaryo, Sunaryo; Widiasa, I Nyoman
Reaktor Volume 23 No.3 December 2023
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.23.3.105-115

Abstract

Pacific white shrimp (Litopenaeus vannamei) is a major cultivated crustacean species whose aquaculture production has doubled in the last decade. The implementation of shrimp pond systems using closed or intensive methods is widely carried out. However, wastewater produced by intensive shrimp farming may cause environmental effects. This study is aimed to evaluate the feasibility of the aerated wastewater stabilization pond to treat the cultivation wastewater. The physicochemical parameters monitored were temperature, pH, salinity, ammonia, nitrite, nitrate and phosphate. In the case of this study, almost all physicochemical parameters of the water coming out of the aerated wastewater stabilization pond are suitable for use as input water for integrated multitrophic aquaculture (IMTA). Temperature, pH, salinity, nitrite, nitrate, and phosphate were 27.1°C to 32.2°C, 7.86 to 8.79, 30 ppt to 34 ppt, 0.003 mg/L to 0.068 mg/L, and 0.19 mg/L to 1.31 mg/L, respectively. Only ammonia concentration significantly fluctuated in the range of 0.44 mg/L to 12 mg/L. 
Application of Vertical Flow Constructed Wetland for Organic Pollutant Removal from Petroleum Refinery Wastewater Lestari, Amelia Eka; Widiasa, I Nyoman
Reaktor Volume 24 No.2 August 2024
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.24.2.68-75

Abstract

This study examined the application of a pilot-scale Vertical Flow Constructed Wetland (VFCW) system for secondary oil refinery effluent treatment at PPSDM MIGAS, Indonesia. The VFCW technique, known for its simplicity, minimal operational cost, and environmental friendliness, was used to reduce organic pollutants (BOD and COD) to meet the standards and minimize pollutant levels. The system, constructed with a closed pond including gravel and sand substrates, and planted with Typha angustifolia, was evaluated under Hydraulic Retention Times (HRT) of 3, 4, and 5 days. The results showed BOD removal efficiencies of 52.9%, 54.4%, and 53.6%, and COD removal efficiencies of 35.7%, 49.1%, and 47.2% for hydraulic retention times of 3, 4, and 5 days, respectively. Statistical investigation (ANOVA) showed no significant difference (P > 0.05) in BOD removal efficiencies across HRTs and COD removal for 4 and 5 days. These findings implied diminishing benefits after 4 days for organic matter removal operations. The limited BOD and COD removal, in contrast to other investigations, was due to the short acclimatization time (7 days) for the Typha angustifolia to drive oxygen sufficiency and biofilm formation. These findings underlined the capability of the VFCW system to reduce wastewater contaminants sustainably and economically in tropical areas such as Indonesia. A 4-day HRT is recommended for practical applications in refinery wastewater treatment with pollutant loads up to complement. Extended acclimatization duration and improved operational settings are recommended to enhance the performance of the VFCW. This study illustrates the feasibility of VFCW as a scalable and environmentally sustainable solution for wastewater control in the petroleum industry sector. Keywords: VFCW, organic pollutants, retention time, removal efficiency, acclimatization.
Co-Authors A A Susanto A Ardiansyah A Arinaldi Adina, Alifia Rizki Adyaksa, M. Nur Ahmad Fauzi Ismail Ahmad Fauzi Ismail Ali Djunaedi Ario Budi Kusumo Asteria Apriliani Susanto Ayu Putri Lestari B Budiyono Bambang Pramudono Bayu Satria Utama Berkah Fajar Bernadeta Eka Naftalina Catur Pamularsih Dera Choanji F Ferdian Febrianto Adi Nugroho Gatra Buana Winiarti Ghina Shofi Pratiwi Hasristuti, Nani Hendrik Wijaya Heny Herawati Heny Herawati Heru Susanto I Gede Wenten Izza Rahmawati Jannah, Rizkiyah Fatikhatul Jayanti, Retno Dwi JS, Ikha Rasti Kendri yanto Kendriyanto Kendriyanto Khoiriyah, Lu'luatul Lestari, Amelia Eka Linda Aliffia Yoshi, Linda Aliffia Luqman Buchori Malida Fauzzia Maria E. Simorangkir Michael MGP Simatupang Miranti Budi Kusumawati Nafiunisa, Aininu Nita Aryanti Noer Abyor Handayani Nur Rokhati Priyo Sasmoko Putri, Tanti Nabella Putu Teta Prihartini Aryanti Rahmanisa, Riang Anggraini RATNAWATI Ratnawati Ratnawati Retno Dwi Jayanti Retno Dwi Jayanti Riang Anggraini Rahmanisa Savero Pakavi Zahrudin Seno Johari Seno Johari Seno Johari Seno Johari Seno Johari Siswo Sumardiono Sunarso . Sunaryo Sunaryo Sunaryo Sunaryo Titik Istirokhatun Tito, Adryan Tutuk Djoko Kusworo Wishnu Wijaya Yasmin Nabilah Zakki, Abdurrahman