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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

Author-ID : 749018

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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KARAKTERISASI ZEOLIT DARI MINERAL KAOLIN YANG BERASAL DARI DESA SENCALANG KABUPATEN INDRA GIRI HILIR Sofia Anita; Itnawita -
Sistem Informasi Vol 4 No 2 (2014): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v4i2.180

Mineral kaolin yang bersal dari Desa Sencalang Kecamatan Kerintang Kabupaten Indra Giri Hilir dapat digunakan sebagai bahan baku pembuatan zeolit karena mengandung SiO2 yang cukup besar yaitu 60,49-83,02 % dan Al2O3 10,63-24,19 %. Zeolit yang dibuat dari peleburan 25 g kaolin dan 35 g NaOH serta penambahan silikat dan aluminat 1:1, mempunyai karakter yang mirip dengan zeolit A. Hasil difraksi sinar-X menunjukkan adanya pola difraksi sudut 2θ berturut turut 7,20: 10,12; 16,13; 21,70; 24,00; 30,79; 34,24; 36,63; 42,63 dan adanya regangan asimetris O-Si-O atau O-Al-O pada bilangan gelombang 1007 dan 1006 cm -1, 715-720 cm-1 regangan simetris O-Si-O atau O-Al-O dari ikatan TO4 tetrahedral. Bilangan gelombang 463 dan 456 cm-1 merupakan vibrasi tekuk TO4 tertahedral sedangkan serapan cincin ganda terlihat tajam pada nilangan gelombang 559 cm-1.

ANALISIS TINGKAT CEMARAN LOGAM TEMBAGA DAN TINGKAT PENDAPATAN USAHATANI SAYURAN DI KEBUN KARTAMA DAN KEBUN KOMPPOS – EM KOTA PEKANBARU Shally Yanova; - Zulkarnaini; Sofia Anita
Sistem Informasi Vol 6 No 02 (2016): Jurnal Photon
Publisher : LPPM Universitas Muhammadiyah Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jp.v6i02.486

The study was done in August to September 2015 and located in the Kartama Garden (PSN) on Kartama street Marpoyan Damai district area and KOMPPOS – EM garden (PSO) at the University of Riau, Pekanbaru. The purpose of this research is determining metal Cu (copper) in vegetable (mustard, convolvulus and lettuce) and soil, determining the rate of pollution metal Cu, analyzing the use of fertilizer and pesticide synthetic levels of metal Cu in a sample and analyzing the impact of agricultural income activity for farmers. Based on the research, levels of metal Cu in vegetables and soil PSN had passed of quality standard Director General POM RI namely 5,0 mg/kg and categorized polluted metal Cu. While sample vegetable KOMPPOS - EM garden (PSO) is still under environmental quality category and including contaminated. Using fertilizer and pesticide synthetic and continuing to exceed doses constantly affects levels of metal Cu in a sample of vegetables and soil significantly. Economically, PSN and PSO farming is agricultural activity that can give advantages for farmers.

Esterification of Crude Palm Oil Using H2SO4 and Transesterification Using CaO Catalyst Derived from Anadara granosa Nurhayati Nurhayati; Sofia Anita; Tengku Ariful Amri; Amilia Linggawati
Indonesian Journal of Chemistry Vol 17, No 2 (2017)
Publisher : Universitas Gadjah Mada

In this study biodiesel was produced from crude palm oil through two-step processes, namely esterification reactions using homogeneous H2SO4 catalyst and transesterification using the heterogeneous base CaO catalyst derived from Anadara granosa shell. Several parameters affecting to the yields of biodiesel were investigated including the amount of the catalysts, the molar ratios of oil to methanol, reaction times and reaction temperatures. The CaO catalyst was prepared by calcining the A. granosa shells at the temperatures of 800 and 900 °C for 10 h. The as-synthesized biodiesel was analyzed using GC and its characteristics were determined and the results were compared to Standard National for Biodiesel (SNI 04-7183-2006). The optimum condition for the esterification process (step 1) was as follows: reaction temperature of 65 °C, reaction time of 3 h and mol ratio of oil to methanol 1:24. For the transesterification (step 2) the optimum conditions were attained using the catalyst weight 3%, reaction temperature of 60 °C, reaction time of 3 h, mole ratio of oil/methanol 1:6 and the catalyst calcination time of 10 h with the conversion of 87.17%. This biodiesel yield by the two-step processes was higher (2.7%) than that using only one-step process (transesterification).

Korelasi Konsentrasi Particulate Matter (PM10) di Udara dan Kandungan Timbal (Pb) dalam Rambut Petugas SPBU di Kota Pekanbaru Vivi Roza; Mirna Ilza; Sofia Anita
Dinamika Lingkungan Indonesia Vol 2, No 1 (2015)
Publisher : Universitas Riau

This research describes the concentration of PM10 in the air and the Pb content inthe Gas Station Attendants’ hair in Pekanbaru. It was conducted in March – June 2014 byusing Case Control Survey Method and Statistical Analysis which are ANOVA Test andIndependent Sample t-Test in order to find out the difference of the Pb content in gas stationattendants’ hair of Pekanbaru City that is based on age, sex, location, group (case-control)and term of service and also to test the correlation between PM10 concentration and leadcontent (Pb) with a simple regression correlation analysis. The result reveals that there is nodifference in Pb content in the gas station attendants’ hair in Pekanbaru City based on age,sex, term of service and the group (case-control) (p>0,05). However, there are differences inthe Pb content in the gas station attendants’ hair based on the locations (p<0,05). PM10concentration and Pb content in the gas station attendants’ hair resulted an equation Y=0,151 + 0,001x. While R2=0,110 as a determinant coefficient showed a weak positiverelationship between the concentration of PM10 and Pb content in the gas station attendants’hair of Pekanbaru City.

Risiko Paparan Benzena Terhadap Kandungan Fenol Dalam Urin Pekerja Pengecatan Mobil Di Kecamatan Tampan Kota Pekanbaru Tahun 2017 Darnita Darwis; Mubarak Mubarak; Sofia Anita
Dinamika Lingkungan Indonesia Vol 5, No 1 (2018)
Publisher : Universitas Riau

Benzene is well known as a good organic solvent for various processes in industry such as rubber industry, shoes, paint solvents and others. Benzene is a chemical that has long been known to be dangerous to human health because of carcinogenic. One of the informal sectors exposed to benzene is a car painting workshop. This study is intended to determine the levels of phenol in workers urine and analyze the effects of the exposureon the characteristics of the car painting worker in sub districts of Tampan Pekanbaru. The methods used in study are survey and interview. The analysis used in this research is a multiple linear regression, where the independent variable more than 2 variables. They are smoking habit, length of work, duration of exposure and use of PPE. The examination by using the UV-Vis spectrophotometer apparatus. The result showed that were 6 workers who had phenolythuramines level above 20 mg/L exceed of WHO standards. The analysis result found that is affect workers characteristic which is significant to the phenol level in workers urine that has exposed to the benzene.

Kadar Timbal (Pb) Pada Rambut dan Kuku Polisi Lalu Lintas di Kota Pekanbaru dan Kota Bengkalis Wahyu Hardinsyah Putra; Bintal Amin; Sofia Anita
Dinamika Lingkungan Indonesia Vol 2, No 2 (2015)
Publisher : Universitas Riau

This research was conducted in the city of Bengkalis and Pekanbaru from June toAugust 2014, with the aim to analyze the concentrations of lead (Pb) in hair andnails of traffic policemen and to analyze the relationship between the length ofemployment with concentrationss of lead contained in hair and nails of traffic police in thecity of Bengkalis and Pekanbaru. The samples were analyzed in the Laboratory of PhysicalChemistry of the Faculty of Mathematics and Natural Sciences, University of Riau by usingAAS (Atomic Absorption Spectrophotometer). Results of the research showedthat lead concentrations in hair and nails of traffic policemen in the city of Pekanbaruwere 13.36 and 2.11 ppm resprctively and categorized as medium and low level ofcontamination. Meanwhile, lead concentrations in hair and nails of traffic policemen in thecity of Bengkalis were 21.81 and 2.56 ppm which were also categorized as medium and lowlevel of contamination respectively. Concentrations of Lead in the hair of policemen relationto length of employment in Bengkalis were 14.37; 13.09 and 25.29 ppm for <3, 3-5 and >5years respectively. Lead concentrations in nails of traffic policemen at both locations for awork period <3, 3-5 and >5 years were 1.58, 2.70 and 2.71ppm respectively. Average Leadconcentrations in the hair (17.56 ppm) was higher than in nails (2.33 ppm), however theirconcentrations were statistically not different.

Survei Kondisi Sosial Masyarakat Dalam Memenuhi Kebutuhan Air harian di Kecamatan Minas, Kabupaten Siak Maulana Hardi; Yusni Ikhwan Siregar; Mirna Ilza; Sofia Anita
Dinamika Lingkungan Indonesia Vol 6, No 2 (2019)
Publisher : Universitas Riau

Water is the most abundant chemical compound in nature, but in line with the increasing standard of living, the need for water also increases so that water becomes an expensive item. In some areas, it is not easy to get clean water sources that are free from pollution because high of domestic activities and water also sucked up a lot by industrial activities which require a lot of water for their production. On the other hand, land which is a water bank has been covered a lot by housing, industry, regardless of the function of the land as a vehicle for water storage. Increasing industrial and community activities can also increase the risk of pollution which can reduce the quality of existing water sources and cause difficulties for the community to meet their daily water needs. In this study, field surveys and questionnaires were conducted to obtain information about the social conditions of the community in meeting their daily water needs for drinking water and clean water. Laboratory test also conducted to evaluate the quality of water source based on regulation Peraturan Pemerintah No 82 tahun 2001. The results of the study showed that the community in Minas area still could not meet the daily water needs properly in terms of quality and quantity.

Potensi Limbah Abu Layang (Coal Fly Ash) Sebagai Koagulan Cair Dalam Pengolahan Air Gambut Yonda Safutra; Bintal Amin; Sofia Anita
Dinamika Lingkungan Indonesia Vol 4, No 2 (2017)
Publisher : Universitas Riau

Coal Fly Ash is waste of coal combustion which is included in toxic and hazardous material (B3). This study aims to find the optimum conditions of liquid coagulant manufacturing process from coal fly ash. The process of making liquid coagulant from coal fly ash is a modification of Park method (1997) to make coagulant from clay, because it has the same composition. The optimum conditions were obtained at 2500C, 60 minutes, 1: 5 ratio and 2M H2SO4 concentration. Furthermore, liquid coagulant at optimum condition was carried out effectiveness test in peat water treatment, the research was done by using randomized complete factorial design (RAL) with 9 treatment combinations and 3 replications, analyzed in the laboratory and analyzed of variance (ANOVA). Parameters measured were color, pH, turbidity, TDS, TSS. The results showed that the difference of coagulant dosage gave significant effect on color, pH, TDS, and turbidity parameters, but no significant effect on TSS parameter. The difference of stirring time significant effect on pH and turbidity parameter while for color, TDS, and TSS parameter no significant effect.

Perubahan Sifat Fisik Kimia Tanah Sebagai Dampak Kebakaran Lahan Gambut Kebun Sawit T Abu Hanifah; Sofia Anita; Idwar Idwar
Dinamika Lingkungan Indonesia Vol 10, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.10.1.p.29-33

Based on the survey results in the last seven years (2010 - 2017), palm plantations in the Pakning Asal area, Bengkalis Regency experienced fires with different frequencies. Some lands that not burned, once burned and several times burned. The burned areas can affect the composition and nutrient content of the soil. Burning peatlands cause irreversible drying due to the heating of the peat. This study aimed to analyze the effect of fires with different frequencies on the total Fe, Al, Mo and C/N content. Total Al and Mo content was determined using Atomic Absorption Spectrophotometer. The total Fe and C content was analyzed using UV-Vis Spectrophotometer. Total N was analyzed using the Kjeldahl method. The results showed that the total Fe, Al, and Mo content increased in the soil burned once and the C/N ratio increased with the increasing frequency of fires. The total Fe, Al, and Mo content in the soil burned once was 69.20 mg/Kg, 33.83 mg/Kg, 2.16 mg/Kg and the C/N ratio increased from 16.51 to 25.31, respectively. The impact of different fire frequencies affected the chemical content of the soil. Land fires have positive and negative impacts. The positive impact increased pH of soil palm plantations, while the negative impact caused air pollution and damage to soil structures.

ANALISIS KANDUNGAN LOGAM TIMBAL (Pb) DAN CADMIUM (Cd) PADA TANAH PERKEBUNAN DAN TANAMAN JAMBU BIJI (Psidium Guajava) DI DESA PERAWANG BARAT KABUPATEN SIAK Ardiansyah Hamid; Sofyan Husein Siregar; Sofia Anita
EcoNews Vol 3 No 2 (2020): EcoNews
Publisher : Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Riau

Perawang Barat village is a village that produces guava. This can be seen from the number of guava plantations found along the Jalan Perawang Barat Village. The guava plant looks lush with large, dense fruit. To get good quality fruit, it is necessary to maximize virginity, such as fertilizing and spraying pesticides. For fertilization, manure and chemical fertilizers are used. Manure comes from chicken manure and chemical fertilizers consisting of KCL, ZA and TSP, while as many as nine types of pesticides are used for pesticides with different functions. Fertilizers and pesticides are sources of Pb and Cd metals. Continuous use of fertilizers and pesticides in the long term results in the accumulation of Pb and Cd metals in the soil. The metal content of Pb and Cd in the soil of 7.71 ppm and 0.37 ppm resulted in the contaminated category of plantation soil. For the distribution of Pb metal in guava plants, the highest Pb content was found in the leaves followed by the stems and roots. The high content of Pb metal in leaves can be caused by many factors, among others, Pb metal comes from the soil which is transferred by roots, the use of pesticides and airborne particulates from motor vehicle fumes.

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

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