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All Journal Jurnal Ilmiah Arena Tekstil INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Suprihanto Notodarmodjo, Suprihanto
Teknik Lingkungan, Fakultas Teknik Sipil dan Lingkungan, Institut Teknologi Bandung, Jalan Ganesa 10, Bandung 40132
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Environmental Science Industrial & Manufacturing Engineering

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DEKOLORISASI FOTOKATALITIK ZAT WARNA REMAZOL BLACK 5 DENGAN MENGGUNAKAN NANOPARTIKEL TiO2 DAN Ag YANG TERIMMOBILISASI PADA NANOFIBER SELULOSA BAKTERIAL (SB) Gustiani, Srie; Notodarmodjo, Suprihanto; Syafila, Mindryani; Radiman, Cintya L.
Arena Tekstil Vol 29, No 2 (2014)
Publisher : Arena Tekstil

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1521.132 KB)

Abstract

Pada penelitian ini, dilakukan studi terhadap penyisihan zat warna reaktif  Remazol Black 5 (RB 5) pada aplikasi proses fotokatalitik menggunakan katalis Ag dan TiO2 terimmobilisasi pada permukaan nanofiber selulosa bakterial (SB). Metode penelitian meliputi percobaan untuk memperoleh nilai optimum dari pH, jumlah Ag dan TiO2 serta untuk mengevaluasi efisiensi penyisihan warna yang optimum.  Pada proses pengolahan RB5, digunakan reaktor fotokatalitik selulosa bakterial (SB)/Ag/TiO2 didesain dalam skala laboratorium pada sistem batch, konsentrasi warna limbah buatan 10, 30 dan 50 mg/L, intensitas lampu UV 4,5 W/cm2 selama 120 menit. Dari hasil pengolahan RB 5,  diperoleh pH optimum 11, konsentrasi warna 10 mg/l dan jumlah katalis Ag dan TiO2 optimum 3,85 mg/cm2. Efisiensi penyisihan warna optimum diperoleh sebesar  98,4%.
Heat Transfer Analysis and Water Quality in Saline Water Desalination Using Solar Energy in Vacuum Condition Kusumadewi, Riana Ayu; Notodarmodjo, Suprihanto; Helmy, Qomarudin
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY Volume 2, Number 1, October 2018
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v2i1.3556

Abstract

The continues deficiency of consumable water is a significant issue in developing countries, and contaminated water can result in various diseases, which are often lethal. Solar desalination seems to be a promising method and alternative way for supplying fresh water. Aim: The aim of this research is to study heat transfer in desalination system and the quality of feed water, distilled water and brine compared to the quality standard. Feed water consists of salinity 12‰ and 38‰ salinity. Methodology and Result: At first, initial characterization of feed water was conducted, then temperature on fourteen points was measured using thermocouples and thermometer so heat transfer rate can be calculated. After that, the final characterization of water production was conducted. From the  observation, it was found that evaporative heat transfer for vacuum pressure of -0.05, -0.1, -0.15, -0.2, -0.25, and -0.3 bar respectively were 173.77, 180.07, 190.79, 481.66, 242.57, and 246.24 W/m2. The result of water quality test of distilled water produced from saline water desalination for some parameters respectively were pH 7.4; turbidity 2.73 NTU; TDS 27.45 mg/L; chloride 84.98 mg/L; Fe 2.13 mg/L; total hardness 0.1698 mg/L; and Escherichia coli 12 cell/mL . Conclusion, significance and impact study: It can be concluded that distilled water produced by desalination system was met drinking water quality standard according to Minister of Health Regulation No. 492 of 2010.
Co-Authors Cintya L. Radiman, Cintya L. Kusumadewi, Riana Ayu Mindryani Syafila, Mindryani Qomarudin Helmy, Qomarudin Srie Gustiani, Srie