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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan IJCER (International Journal of Chemistry Education Research) Jurnal Serambi Engineering
Noviani Ima Wantoputri
Department Of Environmental Engineering, Faculty Of Civil Engineering And Planning, Universitas Islam Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Materials Science & Nanotechnology

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The Effectiveness of Virtual Learning Process on Environmental Chemistry Laboratory Course Lutfia Isna Ardhayanti; Adelia Anju Asmara; Noviani Ima Wantoputri; Elita Nurfitriyani Sulistyo; Nelly Marlina
International Journal of Chemistry Education Research VOLUME 6, ISSUE 1, April 2022
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol6.iss1.art6

Abstract

The impact of advanced technology is perceived in every sector, including education. As the Ministry of Education and Culture program, distance learning has become applied in Indonesia, especially with this pandemic COVID-19. The learning model used in the course will affect student understanding in this situation, especially for an experimental study that aims to enhance student skills in the laboratory. The virtual laboratory practice is an additional learning model used in Environmental Chemistry Laboratory Course. Before, the Environmental Laboratory Course used only video to deliver learning materials. This research is experimental research that aims to evaluate the additional virtual laboratory practice's impact on student grades compared to the previous method. The research result was obtained by comparing the practical course's assessment results in 2019/2020 to 2020/2021. A questionnaire was also used to collect student opinions about the new learning method. The number of samples in this research was 395 students. The results show that the average students' grades using explanatory video only is 89, then with additional virtual laboratory practice are 88. From the questionnaire, 46% of the respondent said the application increased their understanding of the learning materials, and they also enjoyed using the application. It could be concluded that the virtual laboratory practice did not improve the assessment result of the course but enhanced the student interest. Keywords: Distance learning, Laboratory course, virtual laboratory practice
Textile Wastewater Post Treatment Using Ozonation Noviani Ima Wantoputri; Qomarudin Helmy; Suprihanto Notodarmojo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 1 (2021): March 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.015 KB) | DOI: 10.14710/presipitasi.v18i1.56-63

Abstract

The textile industry is one of the industries that discharge an enormous quantity of highly colored wastewater because of the large amount of water used in the process. Textile wastewater is the potential to polluting the environment due to the high color contained in it. One of the problems in processing textile wastewater with conventional treatment methods is the ineffectiveness of color removal. A post-treatment is needed for treated wastewater to remove the color. One of the methods is by using the ozonation method. In this preliminary study, the decolorization of artificial textile wastewater containing azo dye reactive-black 5 (RB5) from secondary treatment was investigated in a batch system. Artificial treated textile wastewater from secondary biological treatment was made using 5,26 mg/L azo dye RB5 in 16 L volume of the reactor. The preliminary batch study showed that the optimum color removal achieved in 24.66 mg/minute ozone dose in a batch system with 20,89 mg/minute ozone consumption. Within 5 minutes of ozonation, color removal achieved was 100%, and COD removal achieved was 75%.
Analisis Status Mutu Air Sungai Tambak Bayan, D.I. Yogyakarta Menggunakan Metode Storet dan Indeks Pencemar Rachmad Hernadi; Widodo Brontowiyono; Noviani Ima Wantoputri
Jurnal Serambi Engineering Vol 8, No 3 (2023): Juli 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/jse.v8i3.6452

Abstract

Status mutu air merupakan paramater penting yang perlu dianalisis untuk mengetahui kualitas air sungai. Hal tersebut berkaitan dengan kesesuaian peruntukan air sungai. Sungai Tambak Bayan merupakan salah satu sungai kelas II di Daerah Istimewa Yogyakarta yang melintasi kawasan perkotaan dan dimanfaatkan oleh masyarakat. Pada penelitian ini dilakukan analisis status mutu air sungai Tambak Bayan menggunakan dua metode yaitu Storet dan Indeks Pencemaran (IP) sesuai Keputusan Menteri Negara Lingkungan Hidup nomor 115 tahun 2003 tentang Pedoman Penentuan Status Mutu Air. Data kualitas air yang digunakan merupakan data sekunder yang diambil dari database Dinas Lingkungan Hidup dan Kehutanan (DLHK) D.I.Yogyakarta 2013-2020 dengan parameter total suspended solid (TSS), nitrat, nitrit dan total Coliform. Terdapat empat titik pemantauan yang digunakan. Hasil perhitungan status mutu menunjukkan status mutu air sungai Tambak Bayan dengan metode Storet yaitu tercemar berat dan metode IP  yaitu tercemar ringan.
Co-Authors Adelia Anju Asmara Elita Nurfitriyani Sulistyo Lutfia Isna Ardhayanti Nelly Marlina Qomarudin Helmy Rachmad Hernadi Suprihanto Notodarmojo Widodo Brontowiyono