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All Journal Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Jurnal Guru Komputer
Audina, Nurul
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Computer Science & IT Education Engineering

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Efektifitas Proses Koagulasi-Flokulasi Dalam Menyisihkan Parameter TSS Dan TDS Pada Limbah Cair Laboratorium Kimia Dasar Audina, Nurul; Elystia, Shinta; HS, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Coagulation and flocculation process is used because of it’s ability to remove colloids and suspended particles that contained in laboratory wastewater. The wastewater of Fundamental Chemical Laboratory contained very high concentrations of TSS and TDS, therefore coagulation and flocculation process is needed. This research was conducted to determine the optimum coagulant dose of PAC (Polyaluminium Chloride) in remove TSS and TDS. The determine of optimum coagulant is done by varies doses of PAC within 400, 500, 600, and 700 mg/L. Jar test method resulting the optimum condition of coagulant PAC is in 600 mg/L. Based on the result, the final concentration of TSS and TDS have met the Type II waste water quality standards, but TDS concentrations are still above the Type I waste water quality standards.Keywords: Laboratory Wastewater, Coagulation, Flocculation, Poly AluminiumChloride (PAC), TSS, TDS.
Assessment of Students' Absorption of Printed Graphic Design Material Using the Blended Learning Model Audina, Nurul
Jurnal Guru Komputer Vol 2, No 2 (2021): JGrKom: September 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jgrkom.v2i2.63957

Abstract

This research is motivated by the problems that researchers encountered in the field, namely the student absorption of Printed Graphic Design, is still lacking. Therefore, there is a need for a learning model that can help improve students understanding of the material combining vector-based image and text. One of the alternatives used by researchers to overcome this problem during the Covid-19 period is by using a blended learning model. This study aims to prove the doubts about student’ understanding ability of Printed Graphic Design materials. To achieve good results participants used the class action research method from Kurt Lewin, which states that in one cycle there are four main steps, namely (1) planning, (2) action, (3) observation, (4) reflection. The learning outcomes of the first cycle were not in line with expectations because students who scored ≥ 75 is only 22.86%, while the expected value if students who scored ≥ 75 had achieved completeness ≥ 75%. Meanwhile in cycle II, there is an increase in learning outcomes where the results are in accordance with expectations because students who score ≥ 75 are more than 75% of the total number of students, which is 100%.
Co-Authors Edward Hs Shinta Elystia