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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) CHEMICA Jurnal Teknik Kimia Eksergi: Chemical Engineering Journal JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Journal of Engineering and Technological Sciences JURNAL NASIONAL TEKNIK ELEKTRO R.E.M (Rekyasa Energi Manufaktur) Jurnal Indonesian Journal of Chemistry REACTOR : Journal of Research On Chemistry And Engineering Journal of Applied Agricultural Science and Technology Journal of Industrial Community Empowerment JURNAL REKAYASA KIMIA & LINGKUNGAN
Reni Desmiarti
Bung Hatta University
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Journal : Journal of Engineering and Technological Sciences

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Characteristics of NOM Released to Water from Different Forest and Agricultural Soils Hongjie Gui; Fusheng Li; Yongfen Wei; Toshiro Yamada; Reni Desmiarti
Journal of Engineering and Technological Sciences Vol. 48 No. 5 (2016)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2016.48.5.9

Abstract

The characteristics of natural organic matter (NOM) released to water from a soil environment were investigated based on the release potential and the quality indexes of SUVA, fluorescence EEM and molecular weight distribution using eight forest and agricultural soils collected from a representative river catchment (Kani River catchment in Gifu, Japan). The content of organic matter (OM) and its release potential to water differed obviously with type of soil origin, in the following order: vegetable field (VF) < paddy field (PF) < broadleaf forest (BF) < coniferous forest (CF) and VF < PF < CF < BF, respectively. For the released NOM, SUVA under different pH conditions decreased in the following order: neutral condition [3.6-24.0 m-1/(mg/L)] > basic condition [3.5-8.0 m-1/(mg/L)] > acidic condition [2.5-3.0 m-1/(mg/L)]. Humic acids (P1), fulvic acids (P2) and protein-like substances (P3) were the main components of the NOM released under neutral condition. The proportion of P1 and P2 released from the forest soils was lower than that from the agricultural soils. Marked differences in UV-absorbing constituents of NOM between forest and agricultural soils were found in the peak with a molecular weight of about 9800 g/mol identified as PSS (polystyrene sulfonate).
Disinfection Performance against Salmonella Typhi in Water by Radio Frequency Inductive Couple Plasma System Reni Desmiarti; Ariadi Hazmi; Fusheng Li
Journal of Engineering and Technological Sciences Vol. 49 No. 6 (2017)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2017.49.6.3

Abstract

The disinfection performance of the radio frequency inductively coupled plasma (RFICP) system against Salmonella Typhi in water was examined using continuous flow experiments. The evaluation was based on disinfection efficiency, death rate constant, disinfection yield, and energy consumption. For all experiments the electromagnetic flux generated in the plasma reactor varied from 4 to 6 W/cm2. The disinfection efficiency and death rate constant of Salmonella Typhi decreased with the increase of the initial number of Salmonella Typhi bacteria. The disinfection yield increased from 784 to 1889 CFU/KWh and the energy consumption decreased from 0.28 to 0.07 KWh/L with the flowrate increasing from 5 to 20 mL/minute. The flowrate is an important parameter in predicting disinfection performance against pathogenic bacteria in water to design drinking water treatment plants.
Co-Authors . Darwison Agtata, Shazvelia Dwi Amanda, Amelia Amelia Amanda Amelia Amir Anggreini, Sri Ansyah, Zulfebri Ariadi Hazmi Arifanda, Aditya Yoga Ayu Bidiawati JR Desfitri, Erda Rahmilaila Edwardo Edwardo Eka Putra Waldi Elizarni Elizarni, Elizarni Ellyta Sari Ellyta Sari Erda Desfitri Erda Rahmilaila Desfitri Erti Praputri Firdaus Firdaus Fu-Sheng Li Fu-Sheng Li Fusheng Li Fusheng Li Fusheng Li Fusheng Li Gui, Hongjie Hapsauqi, Iqbal Hongjie Gui Inva Salsabil Lestari Setiawati Li, Fusheng Li, Fusheng mardian Matlal Fajri Alif Maulana Rosadi Muhammad Imran Hamid Mustikaningtias, Endah Naldi, Nofri Nofri Naldi Nora Idiawati Paysmi, Paysmi Permata, Adinda Ratu Primas Emeraldi Putra, Ikhsan Syafano Raihan, Mohammad Ramadhani, Umi Ramayani, Devi Rambe, Rodo Padena Rizaldi, Fajri Akbar Rosadi, Maulana Yusup Sandy Yuda Verdana Suherman, Hendra Susanti, Riju Syukri Arief Tanjung, Diva Amanda Toshiro Yamada Verdana, Sandy Yuda Wahyuni, Alfia Wei, Yongfen Yamada, Toshiro Yesmizarti Muchtiar Yongfen Wei Yulastri . Yulianti, Amro Zulhadjri Zulhadjri