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All Journal International Journal of Public Health Science (IJPHS) International Journal of Evaluation and Research in Education (IJERE) JURNAL ILMIAH PLATAX Jurnal Kesehatan Lingkungan indonesia Jurnal Periodic Jurusan Kimia UNP Jurnal Kesehatan Masyarakat Jurnal Kesehatan Andalas Journal of Degraded and Mining Lands Management SEMIRATA 2015 Jurnal Pengelolaan Sumberdaya Alam dan Lingkungan (Journal of Natural Resources and Environmental Management) Preventif: Jurnal Kesehatan Masyarakat Jurnal Penelitian Kesehatan Suara Forikes Promotif: Jurnal Kesehatan Masyarakat Sumatra Journal of Disaster, Geography and Geography Education Jurnal Penelitian Pendidikan IPA (JPPIPA) COUNS-EDU: The International Journal of Counseling and Education JURNAL PENDIDIKAN TAMBUSAI Jurnal Kelautan Nasional International Journal of Educational Dynamics (IJEDS) Global Conference Index Menara Ilmu Pelita Eksakta Sainstek : Jurnal Sains dan Teknologi Science and Environmental Journals for Postgraduate Natural Science: Jurnal Penelitian Bidang IPA dan Pendidikan IPA AEEJ : Journal of Automotive Engineering and Vocational Education PRIMER (Prima Medical Journal) Dinamika Lingkungan Indonesia Jurnal Pijar MIPA MASALIQ: Jurnal Pendidikan dan Sains Jurnal Pengabdian Pada Masyarakat Jurnal Kependudukan dan Pembangunan Lingkungan (JKPL) Gudang Jurnal Multidisiplin Ilmu Ta'dib Asian Journal of Science, Technology, Engineering, and Art Al-Ihtiram: Multidisciplinary Journal of Counseling and Social Research Economics Development Analysis Journal Jurnal Pendidikan MIPA Journal of Current Research in Humanities, Social Sciences, and Business Kesmas: Jurnal Kesehatan Masyarakat Nasional (National Public Health Journal)

Indang Dewata

Universitas Negeri Padang

Author-ID : 252168

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Studi Kopresipitasi Co(II) Menggunakan Kopresipitan Al(OH)3 Secara Spektrofotometri Serapan Atom (SSA) Monika Yulia; Indang Dewata; Edi Nasra
Jurnal Periodic Jurusan Kimia UNP Vol 2, No 2 (2013)
Publisher : Departemen Kimia FMIPA UNP

Has conducted research on the study of coprecipitation Co(II) using copresipitan Al(OH)3 by Atomic Absorption Spectrophotometry. This study aims to find the optimum conditions such as pH coprecipitation, volume of coprecipitan and the volume of nitric acid as eluent and to see efect of Ni(II) to coprecipitation Co(II). Results of analysis using SSA coprecipitation prove that the optimum conditions obtained in a relatively at base pH of the solution that is pH 8, where the condition is colloidal Al(OH)3 formed maximum. At acidic pH colloid formation process is not maximized, while at higher pH colloids formed will dissolve again into tetra hidroksoaluminat ions. Maximum Coprecipitan volume occurs at 12 mL Al3+ 0,2 M, which is the case in vulome maximum absorption of Co2+ 50 mL 1 ppm by 2,0 mmol colloidal Al(OH)3 while at higher volumes there is a reduction of the metal cation uptake due to competition between the Al metal is more electropositive and have fingers ion is smaller than the cations Co(II). The optimum conditions of volume nitric acid as eluent occurred on volume of 1 mL with absorption capacity by Al3 was 0.0905 mg / g, where as in the volume of eluent managed to extract maximum metal cations while the volume is higher dilution solution causes a decrease in the concentration of metal cations soluble in the eluent. The addition of nickel metal ions affect coprecipitation of metal kobalt because cobalt and nickel is a 3d transition which has a tendency of the same characteristic.

Degradasi Zat Warna Metil Merah Dengan Katalis ZnO Menggunakan Metode Fotosonolisis Putri Ayu; Ananda Putra; Hary Sanjaya; Indang Dewata; Yohandri Yohandri
Jurnal Periodic Jurusan Kimia UNP Vol 10, No 2 (2021): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

The research that has been carried out on the photosonolytic degradation of methyl red uses a ZnO as a catalyst which aims to determine the effect of time and catalyst mass on the degradation of methyl red. The time of degradation is about 30 to 150 minutes while about 0,05 grams to 2,5 grams of catalyst mass is used. The measurement results of the Uv-Vis spectrophotometer were obtained at a wavelength of 435nm with an absorbance 0,2471. In the variation of the degradation time, the highest result was obtained at 60 minutes which was 75,27%, while the ZnO mass variation carried out at the optimum time of 60 minutes obtained the highest results in the addition of 0,15 grams ZnO with the percentage of degradation (%D) of 47,79%. This study shown that hydroxyl radicals (∙OH) takes as a main control in degrading of methyl red.

Penentuan Kapasitas Serapan Ion Fosfat oleh Sedimen Limbah Tambang Batu Kapur di Bukit Karang Putih Indarung Padang Gustia Dona Maya; Indang Dewata; Hardeli Hardeli
Jurnal Periodic Jurusan Kimia UNP Vol 1, No 2 (2012)
Publisher : Departemen Kimia FMIPA UNP

Telah dilakukan penelitian tentang penentuan kadar logam Ca, Al, Fe dan uji kapasitas serapan ion fosfat oleh sedimen limbah tambang batu kapur di bukit karang putih. Pemilihan lokasi pengambilan sampel berdasarkan atas teknik random yang terserbar menjadi 7 titik sampling antara lain, satu titik dihulu, dua titik di lingkungan tambang, dua titik di Sungai Batang Idas dan dua titik di hilir. Hasil penelitian di dapatkan kadar logam Ca dalam persen (%) pada 7 titik sampel berturut-turut adalah sebagai berikut 0,27; 29,67; 29,97; 27,97; 11,28; 9,75; 2,94, dan kadar logam Al dalam persen pada 7 titik sampel berturut-turut adalah 0,025; 0,027; 0,035; 0,036; 0,038; 0,039; 0,041, serta kadar logam Fe dalam persen pada 7 titik sampel berturut-turut adalah 4,15; 1,37; 2,24; 2,07; 3,51; 3,04; 3,17. Kapasitas serapan ion fosfat dalam mg/g pada 7 titik sampel berturut-turut adalah sebagai berikut 6,1; 3,1; 100; 0,4; 2,4; 2,2; 2,9 m. Kesimpulan, kadar logam Ca lebih tinggi bila dibandingkan dengan logam Al dan Fe sehingga logam Ca berperan dalam penyerapan ion fosfat. Terbukti dari analisis korelasi menunjukkan bahwa logam Ca berkorelasi positif dengan Qmaks, sedangkan dengan logam Al dan Fe berkorelasi negatif. Pemodelan isoterm Langmuir lebih tepat dari pada pemodelan isoterm Freundlich karena kapasitas serapan ion fosfat (Q maks) dan regresi (R2) nya lebih tinggi yaitu berturut-turut 100 mg/g dan 0,997mg/g.

pengembangan E-Modul kimia berbasis Problem Based learning untuk meningkatkan literasi sains pada materi hidrolisis garam kelas XI SMA/MA Fadila Gusman; Indang Dewata; Andromeda Andromeda; Rahadian Zainul
Jurnal Penelitian Pendidikan IPA Vol. 8 No. 5 (2022): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v8i5.1831

This study aims to develop an e-module based on problem-based learning to improve scientific literacy for class XI Senior High School students. The method used is the 4-D Model development method with the stages of Defining Design, Development and Dissemination. The limitation of this research is only until the third stage. This development assessment is valid and practical. The elements that are validated are content, presentation, language and graphic components. Elements of practice can be seen from the questionnaire conducted by 36 students and 3 teachers. The results of this study are e-modules that meet valid and practical criteria, so that they can be used for salt hydrolysis learning in class XI Senior High School students.

The influence of age, length of stay, and gender factors on clean and healthy living behaviors Ryanda Luthfi Zaim; Indang Dewata; Nasyfrizal Carlo; Iswandi Umar
COUNS-EDU: The International Journal of Counseling and Education Vol. 7 No. 2 (2022)
Publisher : Indonesian Counselor Association (IKI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23916/0020220739020

The role of the community is one of the causes of the decline in the quality of drainage water. The decrease in the quality of drainage is related to behavior that is formed based on the characteristics of a person and their environment. The sample in this study is the community from 30 houses directly facing the drainage which is the object of research. The research aims to determine the effect of age, length of stay, and gender on people's behavior in managing household liquid waste and disposing of waste in trash cans. This research was analyzed quantitatively using SPSS, Paired Sample t-test for comparison test. The results of this study showed that the behavior of household wastewater management, age, length of stay, and gender did not have a significant effect. While the behavior of throwing garbage in the trash, only the age factor has a significant effect, while the length of stay and gender factors have no significant effect.

Validitas Instrumen Angket Self Regulated Learning Mahasiswa Fisika UIN Imam Bonjol Padang Hurriyah Hurriyah; Festiyed Festiyed; Indang Dewata
Natural Science Vol 9, No 1 (2023)
Publisher : Universitas Islam Negeri Imam Bonjol Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15548/nsc.v9i1.5770

Tujuan penelitian ini adalah untuk membuat instrumen yang dapat mengukur Self -Regulated Learning Mahasiswa Fisika dengan mengukur tingkat validitas. Rancangan instrumen berupa angket Self -Regulated Learning mahasiswa yang terdiri dari 30 pernyataan positif dengan respon berdasarkan skala likert skor 1 sampai 5. Angket self-regulated learning ini dibagi dalam 3 aspek, yaitu aspek metakognitif, motivasi, dan perilaku. Uji validitas yang dilakukan menggunakan validitas isi. Kesimpulan dari penelitian ini adalah terdapat 24 pernyataan yang valid terdiri dari 8 pernyataan untuk aspek metakognitif, 8 pernyataan untuk aspek motivasi, 8 pernyataan untuk aspek perilaku, dan 1 pertanyaan terbuka. Validitas instrument angket SRL ini berada pada kategori valid (80%). Artinya angket ini dapat digunakan untuk mengukur self-regulated learning mahasiswa fisika UIN imam bonjol Padang

KEBIJAKAN PEMBANGUNAN PADA DAERAH TANGKAPAN AIR PLTA KOTO PANJANG, KABUPATEN LIMAPULUH KOTA iswandi umar; Indang Dewata
Jurnal Kependudukan dan Pembangunan Lingkungan Vol 1 No 1 (2020): Jurnal Kependudukan dan Pembangunan Lingkungan (JKPL)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.683 KB)

The population increases every year, as a result of increasing land demand for life activities. Changes in forest land to other uses, have an impact on the sustainability of the water system and river flow. This will have an impact on the sustainability of PLTA Koto Panjang. This study aims to determine the direction of energy sustainability policy of electricity in water catchment area Koto Panjang. To see land use change using Landsat ETM 7 2005 image, and Landsat imagery of Oli 8 years 2018. The method used to determine the direction of Koto Panjang hydropower energy sustainability policy using ISM analysis, in this analysis involving experts as much as 20. The results of land use analysis of about 70 percent of the catchment area changed from primary forest to secondary forest. Direction of energy sustainability policy on PLTA Koto Panjang, it is necessary to increase the cooperation between responsible institutions and law enforcement on the environment.

MODEL DINAMIK PERTUMBUHAN PENDUDUK DAN KUALITAS LINGKUNGAN DI KOTA PADANG Indang Dewata
Jurnal Kependudukan dan Pembangunan Lingkungan Vol 1 No 1 (2020): Jurnal Kependudukan dan Pembangunan Lingkungan (JKPL)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (938.989 KB)

High population growth is a major problem in many developing countries. High population growth has an impact on environmental quality. The purpose of this study describes the dynamic modeling and impact of population growth on environmental quality in Padang City. The method used in dynamic modeling is system approach using powersim 10 software. The population growth in Padang City of the period of 2000-2016 is about 1.3 percent / year, and it is estimated that by 2050 the population will increase to 951.071 inhabitants. The amount of waste produced every year is 2,376 tons / year, and will increase by 2050 to 2,378 tons / year. Therefore, it is necessary for the role of government in controlling population growth and improving the quality of the environmen

PENGELOLAAN SUMBER DAYA AIR DI MASA PANDEMI COVID-19 DALAM PERSPEKTIF KEARIFAN LOKAL Suci Atma Hardika; Ahmad Fasni; Indang Dewata
Jurnal Kependudukan dan Pembangunan Lingkungan Vol 1 No 3 (2020): Jurnal Kependudukan dan Pembangunan Lingkungan (JKPL)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.898 KB)

Air merupakan kebutuhan vital dan harus tersedia untuk menunjang keberlangsungan hidup manusia. Masyarakat Indonesia dengan pengetahuan lokal memanfaatkan sumber air untuk memenuhi kebutuhan mereka. Pandemi covid-19 melanda Indonesia hingga menyebabkan perubahan pola hidup dan sikap masyarakat seperti selalu mencuci tangan. Kajian ini bertujuan untuk menjelaskan pengelolaan sumber daya air di masa pandemic covid-19 dalam perspektif kearifan lokal pada masyarakat sakai di Kecamatan Mandau. Kajian ini menggunakan metode studi literatur dengan menelaah sumber-sumber referensi tentang pengelolaan sumber daya air dan kearifan lokal. Data tersebut dikumpulkan, dianalisis dan ditarik kesimpulan. Hasil dari kajian ini menunjukkan bahwa kebutuhan air semakin meningkat disaat pandemic covid-19 hingga menjadi permasalahan baru seperti terjadinya krisis air. Namun masyarakat sakai di Kecamatan Mandau dalam memanfaatkan dan mengelola sumber daya air disaat pandemi covid-19 telah berpedoman pada kearifan lokal.

ANALISIS INDEKS PENCEMARAN AIR SUNGAI OMBILIN DILIHAT DARI KANDUNGAN KIMIA ANORGANIK Rahman Rahman; Robet Triarjunet; Indang Dewata
Jurnal Kependudukan dan Pembangunan Lingkungan Vol 1 No 3 (2020): Jurnal Kependudukan dan Pembangunan Lingkungan (JKPL)
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (731.086 KB)

Sungai merupakan salah satu sumber air yang diperuntukan untuk aktivitas manusia, aktivitas tersebut mengakibatkan aliran air sungai menjadi tercemar dan berdampak pada terjadinya penurunan kualitas air salah satunya industri, Setiap proses di industri pasti menghasilkan limbah, baik itu limbah padat, cair maupun gas, Sungai Ombilin termasuk kedalam golongan sungai tipe B, Penyebab pencemaran sungai pada perairan ini biasanya berasal dari zat zat yang terkontaminasi oleh limbah buangan industry. Di sekitar Sungai Ombilin terdapat PLTU dan area pertambangan batu bara, 2 hal tersebut yang mempengaruhi indeks pencemaran air sungai, penelitian ini bertujuan untuk mengetahui tingkat indeks pencemaran sungai ombilin dilihat dari kandungan Kimia Anorganik,dengan parameter Sianida (Cn-), Klorin (Cl), Nitrit (No2-)TSS dan pH.penelitian ini menggunakan metode indeks pencemaran menurut KepMen LH 115/2003, untuk menentukan indek pencemaran air sungai, dari hasil pengukuran sampel 1 dan 2 didapatkan hasil kandungan Sianida (Cn-), Klorin (Cl), Nitrit (No2-) dan TSS melebihi baku mutu sedangkan pH tidak melebihi baku mutu air sungai kelas B. dari hasil pengukuran indeks pencemaran sampel 1 termasuk kedalam kategori tercemar tercemar ringan (slightly polluted) sedangkan sampel 2 termasuk kedalam kategori air sungai yang tercemar berat (heavily polluted). KATA KUNCI : Kimia Anorganik, Indeks Pencemaran ABSTRACK The river is a source of water that is intended for human activities, this activity results in the flow of river water being polluted and has an impact on decreasing the quality of water, one of which is the industry, Every process in an industry must produce waste, be it solid, liquid or gas waste, the Ombilin River included in the type B river group, the cause of river pollution in these waters usually comes from substances contaminated by industrial waste. Around the Ombilin River there is a PLTU and a coal mining area, 2 things that affect the river water pollution index, this study aims to determine the level of the ombilin river pollution index seen from the content of inorganic chemicals, with parameters of cyanide (Cn-), chlorine (Cl), Nitrite (No2-) TSS and pH. This study used the pollution index method according to KepMen LH 115/2003, to determine the river water pollution index, from the measurement results of samples 1 and 2 obtained the results of cyanide (Cn-), chlorine (Cl ), Nitrite (No.2-) and TSS exceeds the quality standard while the pH does not exceed the Class B river water quality standard. From the measurement results, sample 1 is included in the slightly polluted category while sample 2 is included in the heavily polluted river water category. KEYWORDS: Chemistry Inorganic, Pollution Index

Co-Authors Abdul Razak Abdul Razak Abdul Razak Afriyani, Ratih Agung Prayitno Ahmad Fasni Ahmad Fauzan Ahmad Juanda Al Asyary Aldri Frinaldi Alfitri Alfitri Ali Amran Alizar, Alizar Alwi Nofriandi Alya Fariani Amini, Aisyah Anaka, Dego Taftazani Ananda Putra Ananda Putra Andromeda Andromeda Annisa, Ananda Suci Aprizon Putra Arif Rahman Hakim Arif Setiawan Arif Setiawan Arman A Atikah Muthmainnah Aturrahmah, Muthi Aulia Azhar Away, Romy Dwipa Yamesa Ayu Azizah Azzahra, Nabila bahari, puja rizki Baqi, Ahmad Iqbal Berliana Salsabila Budhi Oktavia Budhi Oktavia Budhi Oktavia Catri, Indra Christina Lydia Makmur Damanhuri, Harfiandri Dasman Lanin Dedi Agustanto Dedi Hermon Deliani, Nur Farida Delvina, Mery Derjulita, Defika Desy Kurniawati Dewi Fortuna Khairil Dewi Rahmadani Siregar Dian Adhetya Arif dian rizky afriani Dinda Tri Pangesti Dipnorita Retno Dolla Mulyana Harnas Donny Fernandez Dwi Marsiska Driptufany Dwi Putri, Vika Trisna Eddy Suratman Edi Nasra Edwin Musdi Egidia Mayendra Eka Putri, Elinda Eka Sovia Elfandra Fadhli Rabbi Elinda Fithriana Elsa Yuniarti Elvinda, Reza Emra, Auliana Endrizal Endrizal Eni Kamal Eni Kamal Eri arlian Eri Barlian Eri Berlian Erianjoni Erianjoni Exposto, Levi Anatolia S.M. Fadila Gusman Fajriah Azra Fajrin Fajrin Fatma, Winda Faulina Fatmawati Fatmawati Fatmawati, Rani Febrina, Suci Febryanti Febryanti Festiyed Fijri, Annisa Nurul Fitra Arya Dwi Nugraha Fitri Sadilla Fitri, Marisa Meliana Fitriandoni, Adisty Fitrya Monica Frinsis Warmansyah Fuji Astuti Febria Geita Yulyan Firel Gustia Dona Maya Handayuni, Linda Hardeli Hardeli Hardeli Hardeli Hardeli Hardeli Hardeli Hardeli Hari Asri, Hazqan Harika Harika Harmedi Yulian Saputra Hary Sanjaya Hary Sanjaya Hary Sanjaya Hary Sanjaya Haryeni Hayati, Neni Fitra Heldi heldi heldi Heldi Heldi, Heldi Henny Yulius Henny Yulius Herfien Hidayat S, Syaiful Hurriyah Hurriyah I Made Arnawa Ikhsani, Anugrah Putri Indra Catri Insani, Munadia Isva Abdul Ghani Iswandi - Umar Iswandi U Jamika, Fadel Ikrar Jelibseda Jelibseda, Jelibseda Jon Efendi Juli Manda Sari Kasma Warni Kristianto, Aloysius Hari Kurniati Kurniati Kusnanda, Arif Juliari Latisma Dj Lindawati Lindawati Lismomon Nata Mahalul Azam Maharani, Indah Kemala Mainita, Yosi Putri Maiyesi Yenti Maruf, Hidayatul Masrid Pikoli Mawardi Mawardi Mawardi Mawardi Meilindri, Rahmi Aulia Melisa Sri Hardianti Meria Ultra Gusteti Meuraksa, Irawati Miftahul Khair Minda Azhar Minda Azhar Minda Azhar Minda Azhar Mira Hasti Hasmira Mona Gusfira Monica, Fitrya Monika Yulia Muchtar, Bustari Muhamad Sholichin Muhammad Fajri Muhammad Farhan Muhammad Habibul Ikhsan Muhammad Hidayat Muhammad Hiknul Ikhsan Muhayatul, Muhayatul Mulia, Melindra Mulya Gusman Munadia Insani Mutia Amran Nasution, Rani Sakila Nasyfrizal Carlo Niza Lian Pernadi Nizar, Umar Kalmar Nizwardi Azka Nofri Yuhelman Nofrianto Nofrianto Nur Azizah NUR EFENDI Nur Efendi Nurhasan Syah Nurlaeli Rachmawati Koerniawan, Rina NURUL HIDAYAH Oktavia, Elfitri Olivia Oktorie Onasis, Aidil Osronita Osronita Perdani, Agung Sandi Pernadi, Niza Lian Pramesta, Deasycha Novelidia Pudia M. Indika Purnama Wirawan Purnama Wirawan Putri Ayu Rahadian Zainul Rahayu, Youngky Gerre Rahmadani Siregar, Dewi Rahman Rahman Rahmatika, Aljumaatul Rahmi Hidayanti Rahmi, Fathaniah Raviqa Rammadani Yusran Rapitos Sidiq Rasli, Amran Md. Rembrandit Rembrandt, Rembrandt Riri Rahmahwati Joni Rismiati Rismiati Robet Triarjunet Romy Dwipa Yamesa Away Rustian, Zikra Putri Ryanda Luthfi Zaim Sabrina, Joya Sadilla, Fitri Safitri, Aprilliana Sakdimah Sakdimah Sandi Perdani, Agung Sandrawati, Neny Sari, Trisna Kumala Sati’at, Nur Anisa Semeidi Husrin Septya Anggraini Serly Mutia Sari Sherly Kasuma Warda Ningsih Sinaga, Barita Siregar, Dewi Rahmadani Siti Fatimah Siti Fatimah Skunda Diliarosta Skunda Diliarosta Sri Benti Etika Suci Atma Hardika Suci Firma Dewi Sugeng Riyanto Sugriarta, Evino Suhendrinal Suparno . Surya Eka Putra Suryani, Okta Suryelita . Susi Erienti Syafardi, Zulhendra Syafarman Syafri Anwar Syafrijon Syah, Nur Hasan Syamsi Aini Syamsul Amar B Syukria Teguh Widodo Trisna Kumala Sari Try Al Tanto Ulianas, Alizar Ulya Amanda Zeds, Dhea Umar Kalmar Nizar Umar Kalmar Nizar Umar Kalmar Nizar Umar, Genius Umar, Iswandi Vina Novela vira maryati Vivi Chaniasi Wahyu Prasetyo Agus Susanto Wilson Novarino Yani, Akhmad Yerimadesi Yerimadesi Yohandri Yollafebrisa Wizul Yollafebrisa Wizul Yudi Antomi Yuliana Yuliana Yulkifli Yulkifli Yunhendri Danhas Yusuf . Zul Amri Zuldani, Irwan

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