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All Journal Jurnal Ilmu Lingkungan Komunikasi Fisika Indonesia TELKOMNIKA (Telecommunication Computing Electronics and Control) Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Chimica et Natura Acta Indonesian Journal of Chemistry JURNAL PHOTON Jurnal Zona Dinamika Lingkungan Indonesia EcoNews Jurnal Senpling Multidisiplin Indonesia
Anita, Sofia
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, University Of Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Nursing Physics

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Transmission spectra of single ring coupled-waveguide resonator configuration by finite difference time domain method Haryana bin Mohd Hairi; Saktioto Saktioto; Romi Fadli Syahputra; Okfalisa Okfalisa; Sofia Anita
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 5: October 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v18i5.12621

Abstract

Development of optical waveguide resonators have greatly expanded and continues to grow since they have kinds potential applications such as wavelength filtering, switching, coupling and multiplexing. One of resonators, coupled waveguides, ring resonators are designed and operated using various coupling configurations. Ring resonators can be particularly used as wavelength filter if the wavelength can fit a whole multiple time in the circumference of the ring. This article proposes to investigate the transmission spectra from the power source and amplify it in linearized ring resonator configurations and varies the input amplitude on five different wavelengths. With finite difference time domain method, the geometry and power source are simulated to obtain the better result and configuration. The results show the intensity phenomena of filtering in optical circuit.
Bioakumulasi kobalt dan nikel pada tanaman kalakai (Stenochlaena palustris (burm. F.) Bedd) di tanah gambut bekas terbakar desa Pakning Asal, Bengkalis Oktavia Surya Indra; Tengku Nurhidayah; Sofia Anita
Jurnal Zona Vol 3, No 1 (2019)
Publisher : Pelantar Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52364/jz.v3i1.35

Abstract

The last 5 years, palm oil plantation in Pakning Asal, Bengkalis were burned in different frequencies. There were unburned soil and burned soil in several times (2-3 times). Land fires affect the physical chemistry of the soil including macro and micro nutrients in soil as well as surrounding plant growth. One of them is kalakai usually made by vegetables in community. The purpose of this study were to analyze the composition of Co and Ni on roots, stems and leaves of kalakai on peat soil unburned soil and burned soil in several times and determine the content of Co and Ni metal in suitable and safe plants for consumption by the community based on the Acceptable Daily Intake (ADI). Co and Ni analysis was carried out using the Atomic Absorption Spectrophotometer (AAS).The results of the analysis Co content in plants increases on peat unburned soil and Ni content increases on burned peat soil. Based on Acceptable Daily Intake (ADI) on kalakai that grow on unburned peat soil and burned several times 81,76 µg/kg BB/hari dan 57,97 µg/kg BB/hari for Co and 112,56 µg/kg BB/hari dan 119,763 µg/kg BB/hari for Ni. Based on ANOVA test performed with p kurang dari 0.05 can be concluded that there is a significant difference in roots, stems and leaves growing on peat soil unburned and burned several times.
Pengaruh Aktivator Terhadap Kemampuan Bubuk Biji Alpukat (Persea americana Mill) dalam Menjerap Ion Timbal (II) Ganis Fia Kartika; Itnawita Itnawita; T. Abu Hanifah; Sofia Anita; Nur Oktri Mulya Dewi; Suharsimi Absus
Chimica et Natura Acta Vol 5, No 1 (2017)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (132.917 KB) | DOI: 10.24198/cna.v5.n1.12814

Abstract

Penggunaan limbah buah sebagai adsorben berbiaya rendah untuk mengurangi pencemaran akibat logam telah menarik banyak perhatian. Pada penelitian ini akan dibuat adsorben dari bubuk biji alpukat (Persea Americana Mill) yang diaktivasi menggunakan dua jenis aktivator yaitu HCl dan H2SO4. Penelitian ini bertujuan untuk melihat pengaruh aktivator terhadap bubuk biji alpukat dalam menjerap ion Pb(II). Variasi konsentrasi aktivator (2,5; 5; dan 7,5%) dilakukan untuk mendapatkan adsorben dengan kemampuan daya jerap terbaik.Hasil karakterisasi terhadap bubuk biji alpukat yang telah diaktivasi menunjukkan bahwa konsentrasi optimum HCl sebagai aktivator adalah 2,5%, sedangkan H2SO4 yaitu 7,5%. Bubuk biji alpukat yang telah diaktivasi kemudian diuji kemampuan daya jerapnya terhadap ion Pb(II). Kandungan logam Pb dalam larutan sebelum dan setelah proses adsorpsi dianalisis menggunakan metode Spektroskopi Serapan Atom. Hasil penelitian menunjukkan bahwa kedua jenis aktivator tersebut dapat meningkatkan penyerapan timbal dalam larutan jika dibandingkan hasil adsorpsi bubuk biji alpukat tanpa aktivasi. Efisiensi penjerapan bubuk biji alpukat yang diaktivasi menggunakan HCl dan H2SO4 masing-masing sebesar 96,81 dan 83,56% terhadap larutan Pb dengan konsentrasi 10 ppm. Hal ini menunjukkan bahwa aktivator HCl bersifat lebih baik dibandingkan H2SO4 dalam menjerap ion Pb(II) dalam larutan.
BIOREMEDIASI LIMBAH CAIR INDUSTRI TAHU MENGGUNAKAN EFEKTIF MIKROORGANISME (EM4) Jasmiyati Jasmiyati; Sofia Anita; Thamrin Thamrin
Jurnal Ilmu Lingkungan Vol 4, No 2 (2010): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.4.2.p.148-158

Abstract

The experiment was conducted to in order know the effect of effective microorganisms(EM4) on the tofu waste water in the Chemical laboratory FMIPA Riau University Pekanbaruon 18 March - 08 April 2010. Samples were taken from outlet of tofu industry Sido RukunStreet Kecamatan Payung Sekaki. The treatment was using EM4 with concentration of 1:20(Treatment A), the second treatment was using concentration of EM4 1:10 (Treatment B) andC as control. The results of the experimental showed that Treatment A was more effectivethan Treatment B and Control in decreasing BOD and COD for 13 days experiment.
ANALISIS PERBEDAAN IKLIM MIKRO TERHADAP KENYAMANAN PENGUNJUNG PADA RUANG TERBUKA HIJAU DI KOTA PEKANBARU Miranti Putri Ridwan Gucci; Zulkarnaini Zulkarnaini; Sofia Anita
Jurnal Ilmu Lingkungan Vol 10, No 2 (2016): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.10.2.p.112-120

Abstract

The aim of this study was to analyze differences in microclimate, the comfort index and the perception of comfort of visitors in each of the green open space. Location of the study are in three different green open space that is City Forest, City Park and Polytechnic Caltex Riau Park (PCR). The method used was a survey and observation. The sampling method is purposive sampling. The result showed that the average temperature of City forest reached 27.35ºC with 72.12% an average of humidity and 9274.67 Lux intensity of light. Furthermore, comfort index in the city forest was uncomfortable and perception comfort of visitors in good categories the day while, the lack of good are in the afternoon. The average temperature of the city park was 27.83ºC with 71.55% an average of humidity and at 6239.33 Lux intensity of light. Comfort index in the city park was also in the category of comfortable and perceived the comfort of visitors in the category of being there during the day and poor in the afternoon. The average temperature, humidity, intensity of light in the PCR Park were, 30.61ºC, 64.30%, and 16567.67 Lux, respectively. The comfort index in PCR Park was uncomfortable. Nevertheless, the perception of visitors comfort was better in the morning and poor during the day.
ASPEK LINGKUNGAN SOSIAL DAN POTENSI MUNCULNYA PERILAKU PENAMBAHAN BORAKS DALAM PROSES PRODUKSI BAKSO DAGING SAPI DI KOTA PEKANBARU Jully Handoko; Sofia Anita; Christine Jose
Jurnal Ilmu Lingkungan Vol 4, No 2 (2010): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.4.2.p.128-138

Abstract

The study was aimed to identify and analyze social environmental aspects of beef meatballmerchants’s behaviour that is potencial to cause the case of borax content on meatball in Pekanbaru. Results of the study were expected to be a preliminary study about beef meatballmerchants’s profil in Pekanbaru that could be used as the guide of next studies in detail.The study was carried out during January 2010 in Pekanbaru. There were 128 beef meatballmerchants used as respondents taken by simple random and purposive throughout the city. Identification of social environmental aspects was done by using questionaire and researcher’sguidance to avoid mis-perception. It was a survey method to identify some aspects such as 1)age; 2) education; 3) selling experience; 4) duration of daily selling; 5) daily omset; 6)government; and 7) preference of beef meatball texture based on merchants. Data analysis wasdone by tabulation and descriptively showed by mean and percentage. Results of the study showed that most of beef meatball merchants in Pekanbaru Municipalitywere 34,8 years old on the average (productive age), have low formal education and 9 yearsselling experience on the average. They got Rp. 998.696,- daily omset on the average during 8hours of daily open. They also said that they didn’t get elucidation from the goverment and theirpreference of beef meatball texture were rubbery. The social environmental aspects werepotencial to emerge the behaviour of adding borax into beef meatball processing.
ANALISIS BEBAN PENCEMAR DAN KAPASITAS ASIMILASI LOGAM BERAT DI PERAIRAN SUNGAI SETINGKAI KECAMATAN KAMPAR KIRI KABUPATEN KAMPAR Hasdi Yanti HS; Yusni Ikhwan Siregar; Sofia Anita
Jurnal Ilmu Lingkungan Vol 8, No 1 (2014): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.8.1.p.27-37

Abstract

The Research on analysis of pollutant loading and heavy metal assimilation capacitiesin waters of Setingkai River subdistrict of Kampar Kiri Regency of Kampar has beenheld for three months (March to May 2013) by using survey methods, that was directlymeasure on the object to be studied (in situ) and laboratory test (ex-situ). Samples weretaken at four sites purposively by considering the location of the pollutants inputsources, the influx and the distance between sampling locations. The parameters ofheavy metals studied were Pb, Cu and Zn with data analysis including: descriptiveanalysis, pollutant load analysis, assimilation capacities analysis refers to the PP No.82 year 2001 class II. The Result of research showed that the activity of PETI along theflow of Setingkai River have degraded water quality parameters of colour, brightness,TSS, DO, COD and heavy metals such as Pb, Cu and Zn. Average estimation results ofmetal pollutant load Zn 54,10 tons/month; Pb 8,39 tons/month and Cu 7,12 tons/month.The assimilation capacities calculation showed that Zn pollutant load is higher thanwaters assimilation capacities (BP = 54,10 tons/month > KA = 0,0041 ton/month), Pb(BP = 8,39 tons/month > KA = 5,28 tons/month) and Cu (BP = 7,12 tons/month > KA= 1,41 tons/month). The result of research showed that the current condition ofSetingkai river has tainted of Zn, Pb and Cu and hazardous to waters bioticenvironment and also human health.
KANDUNGAN TIMBAL DAN KADMIUM PADA CACING NIPAH (Namalycastis rhodochorde) DAN SEDIMEN PERAIRAN PANTAI INDRAGIRI HILIR Sugeng Abriyanto; Syafruddin Nasution; Sofia Anita
Jurnal Ilmu Lingkungan Vol 10, No 2 (2016): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.10.2.p.187-198

Abstract

This research was conducted at Kuala Enok coastal water of Indragiri Hilir District. Samples of sediment and nypha palm worm N. rhodochorde have been taken from six locations of two villages those were Kuala Enok and Tanah Merah coastal water. Analysis of metal concentrations both in sediment and nypha palm worm conducted by using Atomic Absorption Spectrophotometer (AAS) Shimadzu A7000. The result showed that concentration of Plumbum (Pb) and Cadmium (Cd) in sediment which were between 74.44 10-2 – 108.64 10-2 ppm (Pb) and 0.55 10-2 – 0.96 10-2 ppm (Cd). While the concentration of these metals in nypha palm worm N. rhodochorde which were between 19,26 10-2 – 46.57 10-2 ppm (Pb) and 0.20 10-2 – 0.51 10-2 (Cd), indicating that the concentration in both sediment and nypha palm worm revealed the positive correlation.
PENGARUH PENGGUNAAN PUPUK CAIR HASIL FERMENTASI LIMBAH CAIR INDUSTRI PENGOLAHAN KARET TERHADAP KETERSEDIAAN CA, MG DAN SO 4= Sofia Anita; Itnawita Itnawita
Jurnal Ilmu Lingkungan Vol 8, No 1 (2014): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.8.1.p.97-102

Abstract

Crumb rubber wastewater fermented using Effective Microorganisms (EM) was rich inmicroorganisms and nutrients such as proteins, carbohydrates, fats, and other organiccompounds. Therefore, it is possible as liquid fertilizer. The purpose of this study are toanalyse the nutritional contents (calcium, magnesium, sulphate) in term of variationtime of watery (1x1 day, 1x2 days dan 1x3 days) and fermentation (1,2, and 3 months).The variation time of watery and fermentation shows the increasing of nutrientssignificantly. The present of magnesium and sulphate on the watery everyday and 2months fermented shows significant different of 154,47 mg /g and 29,65 mg/g,respectively. Otherwise, calcium shows significant different within 2 days watery and 1month fermented of 30,10 mg/g 
MIGRASI FORMALDEHID PADA AIR MINUM DALAM KEMASAN (AMDK) Satria Heriady; Sofia Anita; Syafruddin Nasution
Jurnal Ilmu Lingkungan Vol 9, No 1 (2015): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.9.1.p.28-34

Abstract

Polyethylene terephtalate (PET) is used in bottled drinking water. However, PET canbe easily damaged by the effect of temperature and storage time. Formaldehydemigrates from PET as a thermal degradation product. The aim of this research is todetermine the levels of formaldehyde in bottled drinking water based on length time andtemperature and the result were compared with KEPMENKES the Republic ofIndonesia Number 907/MENKES/SK/VII/2002 and Environment Protection Agency(EPA) year 2012. UV-Vis spectrophotometer is used to measure the levels offormaldehyde in the sample and Schiff’s reagent was added to the samples to detect thepresen of formaldehyde. The result of this research showed that the migration offormaldehyde into the drinking water were fluctiative. The highest concentration offormaldehyde was in SPA water 0,214 mg/L at 60°C during 2 weeks storage and 0,155mg/L at 37°C for AQUA during 3 weeks storage. Formaldehyde content of both sampleSPA and AQUA were below the treshold based on KEPMENKES the Republic ofIndonesia Number 907/MENKES/SK/VII/2002 of these Terms and Monitoring ofDrinking Water Quality and Environment Protection Agency (EPA) year 2012.
Co-Authors Amilia Linggawati Anastasia Kinzky Zipora Nainggolan Ardiansyah Hamid Bintal Amin Budi Astuti Christine Jose Dariyatmo Dariyatmo Darnita Darwis Defrianto Defrianto Erman Taer Faradilla Milenia Ganis Fia Kartika Haryana bin Mohd Hairi Hasdi Yanti HS I Gusti Wayan Murjana Yasa I Ketut Suada Idwar, , Itnawita Itnawita Itnawita Itnawita Jasmiyati Jasmiyati Jully Handoko Maulana Hardi Miranti Putri Ridwan Gucci Mirna Ilza Mubarak Mubarak Mufidah Salsabila Nur Oktri Mulya Dewi Nurhayati Nurhayati Okfalisa Okfalisa Oktavia Surya Indra Rahmondia Nanda Setiadi Rini, Ari Sulistyo Romauli Romauli Romi Fadli Syahputra Saktioto Saktioto Saktioto, Saktioto Satria Heriady Soerbakti, Yan Sofyan Husein Siregar Sugeng Abriyanto Suharsimi Absus Syafruddin Nasution Syamsudhuha Syamsudhuha T. Abu Hanifah Tengku Ariful Amri Tengku Nurhidayah Thamrin Thamrin Vivi Roza Wahyu Hardinsyah Putra Yan Soerbakti Yanova, Shally Yolanda Rati Yonda Safutra Yusni Ikhwan Siregar