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All Journal Distilat: Jurnal Teknologi Separasi International Journal of Environmental, Sustainability, and Social Science
PRASETYO, Arif Eko
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Chemical Engineering, Chemistry & Bioengineering Economics, Econometrics & Finance Environmental Science Social Sciences

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The Implementation of Innovation Program Report: 3 in 1 Anion Bed Operating Pattern For Water Efficiency and Water Pollution Loads Improvement SUSILO, Sofiyan Dwi; PRASETYO, Arif Eko; SETYAWAN, Wawan; ICHWAN, Munirul; INTAN, Indo; KARNYOTO, Andrea Stevens
International Journal of Environmental, Sustainability, and Social Science Vol. 5 No. 3 (2024): International Journal of Environmental, Sustainability, and Social Science (May
Publisher : PT Keberlanjutan Strategis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38142/ijesss.v5i3.1079

Abstract

In Tuban Regency, East Java, Indonesia, PT PLN Nusantara Power Unit Tanjung Awar-Awar Power Plant was built. There are two 350 MW coal-fired plants in operation. This project was built based on Presidential Regulation of the Republic of Indonesia No 71 of 2006 dated July 5, 2006 concerning assignment to PT PLN. The company is committed to the environment. They hire a highly skilled team of technicians and engineers to run water treatment plants (WTP). The PT PLN Nusantara Power Unit Tanjung Awar-Awar was able to solve many problems that were caused by the WTP by analyzing data and observing actual conditions. Specially to address concerns such as efficiency, safety, and saving money. A challenge of WTP operation is the limited ability of ion exchange resin (Anion) to remove impure ions from raw water. Hence, PLN introduced an innovative program called "THE IMPLEMENTATION OF 3 IN 1 ANION OPERATION PATTERN". We developed this program because anion beds need to be replaced every so often. The program reduces anion bed component replacement frequency. Due to the WTP's two anion beds, this operating method is possible. The first three days of operation are spent using Anion Bed-A, while Anion Bed-B remains on standby. We're contributing to 1) the anion bed replacement has been cut from once a month to once every three months, 2) significant reductions in waste water pollution load in 2022 of TSS=0,000624 tonnes and CL=0.00000714 tonnes.
PENGARUH KONSENTRASI NaOH DAN WAKTU ELEKTROLISIS TERHADAP KADAR KLORIN DALAM PRODUKSI SODIUM HIPOKLORIT DARI AIR LAUT A'ini, Siti Nur; Dewi, Ernia Novika; Zamrudy, Windi; Prasetyo, Arif Eko
DISTILAT: Jurnal Teknologi Separasi Vol. 11 No. 4 (2025): December 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/distilat.v11i4.7985

Abstract

PT PLN Nusantara Power UP Tanjung Awar-Awar merupakan PLTU berbahan bakar batu bara berkapasitas 2 × 350 MW yang memanfaatkan sistem pendingin kondensor dengan air laut. Untuk mencegah pertumbuhan biota laut pada sistem ini, diperlukan injeksi sodium hypochlorite (NaOCl) melalui metode shock dosing. Namun, fluktuasi pasang surut air laut menyebabkan konsentrasi NaOCl menurun, sehingga efektivitasnya berkurang. Penelitian ini bertujuan untuk menganalisis pengaruh elektroda karbon grafit dalam produksi NaOCl dari air laut serta menentukan konsentrasi NaOH dan durasi elektrolisis optimal. Produksi NaOCl dari air laut  dimulai dengan pengukuran pH dan konduktivitas, dilanjutkan elektrolisis menggunakan elektroda karbon grafit dengan variasi konsentrasi NaOH (0; 0,5; dan 1 N) dan waktu elektrolisis (10–60 menit). Kadar klorin dianalisis dengan titrasi iodometri. Hasil menunjukkan bahwa elektroda karbon grafit cenderung terdegradasi pada kondisi basa kuat dan suhu tinggi, serta menghasilkan larutan yang keruh. Kondisi optimal diperoleh pada penambahan NaOH 1 N dengan durasi elektrolisis 60 menit, menghasilkan kadar klorin tertinggi sebesar 550,34 mg/L, yang memenuhi kebutuhan aplikasi shock dosing pada sistem pendingin PLTU.  
Co-Authors A'ini, Siti Nur Dewi, Ernia Novika ICHWAN, Munirul Indo Intan Karnyoto, Andrea Stevens Setyawan, Wawan Herry SUSILO, Sofiyan Dwi Windi Zamrudy