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All Journal VALENSI Jurnal Teknoin JURNAL KIMIA SAINS DAN APLIKASI Journal of Degraded and Mining Lands Management Elkawnie PROSIDING SEMINAR KIMIA Jurnal Riset Industri Hasil Hutan Indonesian Journal of Science and Technology Konversi QUANTUM: Jurnal Inovasi Pendidikan Sains Info-Teknik Jukung (Jurnal Teknik Lingkungan) Nagari Law Review Buletin Profesi Insinyur Nusantara Science and Technology Proceedings Jurnal Riset Teknologi Pencegahan Pencemaran Industri Fish Scientiae : Jurnal Ilmu-Ilmu Perikanan dan Kelautan JURNAL HUTAN TROPIS Makara Journal of Technology JOURNAL OF WETLANDS ENVIRONMENTAL MANAGEMENT Leuser Journal of Environmental Studies KOPEMAS JURNAL REKAYASA KIMIA & LINGKUNGAN
Muthia Elma
1)Chemical Engineering Department,Lambung Mangkurat University (ULM) , JL.A. Yani KM 36, Banjarbaru, South Kalimantan 70714,Indonesia 2)Materials And Membranes Research Group (M2ReG), Lambung Mangkurat University,JL.A.Yani KM 36, Banjarbaru, South Ka
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Journal : Konversi

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PREPARATION OF AN ORGANOSILICA-BASED MEMBRANE FROM TEOS-MTES AND ITS APPLICATION FOR DESALINATION OF WETLAND SALINE WATER Lilis Septyaningrum; Rahmawati Rahmawati; Fitri Ria Mustalifah; Aulia Rahma; Dewi Puspita Sari; Muthia Elma
Konversi Vol 9, No 2 (2020): Oktober 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v9i2.9392

Abstract

When hot season, South Kalimantan society which especially, in Muara Halyung village frequently go through clean water lacking. It becomes worst by water dirtied on wetland aquifer aftermath the seawater intrusion. Wetland water sources become saline and cannot be used for household needs. Organosilica membrane technology is one of methods can be used to remove salt contain in water. This study aims are to investigate the functionalization and organosilica membrane performance from TEOS-MTES which calcined on particularly temperature for wetland saline water desalination. Synthesis of organosilica sol was conducted by sol-gel method. Then the dried sol was calcined at 350°C and 600 °C, and characterized by FTIR (Fourier Transform InfraRed). Subsequently organosilica membrane was applicated for wetland saline water desalination via pervaporation. The result shows organosilica membrane performance was obtained the water flux 10,55 and 0,87 kg.m-2h-1 which calcined at 350 and 600 °C. The salt rejection in all membrane exhibits extremely high over 99%. It evinces the organosilica membrane from TEOS-MTES which calcined at 350 °C is great to applicated for wetland saline water desalination by both of water fluxes and salt rejection showed high.
PENGARUH PENAMBAHAN DUAL KATALIS PADA SILICA-CARBON XEROGEL SEBAGAI MATERIAL PELAPIS ORGANO SILICA MEMBRANES Muthia Elma; Adhe Paramita; Anna Sumardi
Konversi Vol 7, No 2 (2018): Oktober 2018
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v7i2.6498

Abstract

Abstrak- Proses sol-gel adalah proses polimerisasi senyawa kimia (precursor) melalui reaksi hidrolisis dan kondensasi dalam larutan pada suhu rendah. Nlai pH mempengaruhi daya larut precursor dan rasio konfigurasi ion yang dapat larut dan mengendap. Secara fundamental larutan sol yang memiliki pH > 7 akan memiliki morfologi  makroskopik sedangkan pH < 7 memiliki morfologi mikroskopik. Tujuan dari penelitian ini adalah untuk menentukan kondisi optimum dari thin film yang dihasilkan dari proses sol-gel yang nantinya bisa diaplikasikan sebagai pelapis pada membrane organo-silica untuk proses desalinasi air asin. Metode yang digunakan pada penelitian ini adalah sol-gel menggunakan dua katalis (basa dan asam organik), dengan perbandingan 1:38:X:5:Y (molar rasio). Dimana X:Y adalah asam sitrat (C6H8O7):ammonia (NH3). Perbandingan molar rasio katalis asam sitrat:ammonia yaitu 0.01 : (0.01; 0.0015; 0.001)  dan 0.001 : (0.01; 0.0015; 0.001) dengan suhu proses 0OC. Hasilnya dikarakterisasi menggunakan uji FTIR. Hasil penelitian ini menunjukkan semakin rendah katalis molar rasio asam sitrat maka pH yang didapatkan semakin tinggi dan ukuran pori-pori semakin besar. Sampel menghasilkan pH berkisar 5,32-8,56. Pada pH asam menghasilkan silanol (2.0) dan siloxane (7.4) sedangkan pada pH basa menghasilkan silanol (1.7) dan dan siloxane (6.2). Jadi, sols optimum sebagai thin film yang dihasilkan adalah pada pH 6.0 yang memiliki silanol (1.0) dan siloxane (4.7) dengan kalsinasi xerogel yang optimum terdapat pada suhu kaslinasi 175OC, karena adanya kandungan ikatan karbon yaitu struktur C=C-H (alkena) pada peak 3750cm-1. Ikatan karbon pada membran dapat membuat membran stabil.  Kata kunci: ammonia, citrit acid, silica-carbon thin film, xerogel 
PEMBUATAN PUPUK ORGANIK CAIR DARI SAMPAH ORGANIK RUMAH TANGGA DENGAN BIOAKTIVATOR EM4 (Effective Microorganisms) Thoyib Nur; Ahmad Rizali Noor; Muthia Elma
Konversi Vol 5, No 2 (2016): Oktober 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v5i2.4766

Abstract

Abstrak- Pembuatan pupuk organik cair khususnya dari sampah organik rumah tangga dengan penambahan bioaktivator EM4 (Effective Microorganisms) bertujuan untuk menentukan pengaruh waktu pembuatan terhadap kandungan N, P, K, dan C dalam pupuk organik cair, serta menentukan pengaruh bioaktivator EM4 terhadap kandungan N, P, K, dan C dalam pupuk organik cair. Metode pembuatan pupuk organik cair ini yaitu sampah organik rumah tangga seperti sisa sayuran, kulit buah, dan lainnya dipisahkan dari sampah anorganik. Kemudian bioaktivator EM4 disiapkan didalam sprayer. Sampah organik dirajang dan dimasukkan ke dalam komposter, larutan bioaktivator EM4  kemudian disemprotkan ke dalam komposter secara merata. Pengambilan sampel dilakukan berdasarkan variasi waktu 11 hari, 14 hari dan 17 hari serta variasi penambahan jumlah bioaktivator sebanyak 5 mL, 10 mL, dan 15 mL. Parameter yang diuji adalah nitrogen (N), fosfor (P), kalium (K), dan karbon (C). Hasil peneltian menunjukkan bahwa proses pembuatan pupuk organik cair dengan variasi waktu dan variasi penambahan volume EM4  efektif dalam meningkatkan kadar N, P, dan C. Di mana nilai kandungan N, P terbesar masing-masing pada hari ke 17 sebesar 0,205 %, dan 0,0074 %, sedangkan kadar C terbesar pada hari ke 14 sebesar 0,336 % . Sedangkan pada penambahan volume EM4 kandungan N, P, C terbesarnya  terdapat pada penambahan volume EM4 sebesar 15 mL masing-masing senilai 0,191 %, 0,128 % dan 0,382 %. Semakin lama proses pengomposan dan semakin besar penambahan volume EM4 cenderung menurunkan kadar K. Kata kunci:  pupuk organik cair, effective microrganisms, komposter. Abstract- Manufacture of liquid organic fertilizer especially from organic garbage of household with addition of Bioactivator EM4 (Effective Microorganisms) aims to determine the influence of duration of the process of making a liquid organic fertilizer to the content of N, P, K, and C in a liquid organic fertilizer, and determine the influence of the addition of bioactivator EM4 in the process of making a liquid organic fertilizer to the content of N, P, K, and C in a liquid organic fertilizer. The organic garbage of household is separated from inorganic garbage. Then prepared  bioaktivator EM4 in  sprayer. Organic garbage is cutted entered into composter, then biocktivator sollution sprayed into composter. Intake of sample done pursuant to time variable 11, 14 and 17 days and also variation of addition of amount of bioactivator counted 5 mL, 10 mL, and 15 mL. Parameter which in test are nitrogen (N), phospor (P), kalium (K), and carbon (C). The results indicate that the process of making a liquid organic fertilizer with time variation and addition variation of EM4 effective in increasing the content of N, P, and C. Where the largest value of the content of N, P on day 17th of 0.205% and 0.0074% respectively, while the largest content of C at day 14th of 0.336%. While the addition of volume EM4, the largest content of N, P, C is on addition of volume EM4 of 15 mL at 0.191%, 0.128% and 0.382% respectively. The longer process of composting and the greater addition of volume EM4 tends to reduce the content of K. Keywords: liquid organic fertilizer, effective microrganisms, composter.
IRON ADSORPTION IN PEAT WATER BY SAGO WASTE ACTIVATED CARBON Awali Sir Kautsar Harivram; Isna Syauqiah; Muthia Elma; Erdina Lulu Atika Rampun; Dina Amryna Chairul Putri; Namira Ghina Safitri
Konversi Vol 11, No 2 (2022): OKTOBER 2022
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v11i2.13752

Abstract

In South Kalimantan, peat water is the main water sources for local people. But peat water has high iron content. It cannot be consumed directly and need further treatment. Adsorption is the most common technology to treat peat water. The goal of this research is to study sago waste adsorbent for iron removal in peat water. Citric acid was employed as activating agent in the sago waste activated carbon adsorbent fabrication. Carbonization process was done at 300 ℃ with 70, 80, 90, 100, 110 and 120 minutes of time variation. After treatment using the adsorbent, iron content was tested via Atomic Absorption Spectrophotometry (AAS). While, Fourier Transform Infra-Red (FTIR) were carried out to investigate the functional groups of sago pith waste activated carbon (SPWAC) and sago pith waste unactivated carbon (SPWUC). The experiment results show iron could be removed until 82% with iron concentration of 0.05 mg/l at 80 minutes. SPWAC and SPWUC have functional groups such as alkenes (C-H and C=C), carbonyl (C=O and C-O) and hydroxyl (O-H). Fe concentrations are still meet water quality standard according to No. 492/Menkes/PER/IV/2010 which is 0.3 mg/L. Therefore, adsorption uses sago pith waste activated carbon is an effective and inexpensive water treatment.
Chemical composition study of coal ash content as potential material Karmaili, Karmaili; Elma, Muthia; Wianto, Totok; Mizwar, Andy
Konversi Vol 12, No 2 (2023): OKTOBER 2023
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/k.v12i2.16592

Abstract

Coal in Indonesia is used as fuel for power plants to support the availability of electricity. Besides that, several industries such as the cement, paper, textile, and fertilizer also use coal as fuel for production process. Due to that the coal waste such as ash was generating as increasing coal usage. Therefore, further research was carried out to investigate ash content and chemical composition of coal with various types of calories in the South Kalimantan and Central Kalimantan. In addition, this study provides information about management and potential processing of coal ash so that environmental pollution able to minimized. The method used to obtain primary data to determine the content of each parameter is by direct testing on each parameter for variations in the type of coal calorie. As a result, coal with low to high value has a percentage of ash content, respectively 2.5%; 2.3% and 9.7% and mineral content, respectively 77.40%; 0,96% and 95.06%. As well as the chemical composition of coal for SiO2, respectively 26.56%; 30;50% and 58.76%, Al2O3 respectively 11.14%, 12.41% and 28.86%, Fe2O3 respectively 16.12%, 16.40% and 4.24%. CaO and TiO2 respectively 0.50%, 0.64% and 1.53%. The results obtained, namely the value of ash content and the amount of minerals show an increase in each variation of the type of coal calories as well as the economic value shows a graph that always increases.
Co-Authors Abdul Ghani, Rhafiq Adhe Paramita Adi Darmawan Adryan Ramadhan Afrisa Noor Hidayanti Agus Mirwan Ahmad Busairi Ahmad Faisal Ahmad Ghazali Madhony Ahmad Rizali Noor Akhbar Aliyanti, Alya Dita Amalia Enggar Pratiwi Amalia Enggar Pratiwi Andy Mizwar Angga Irawan Anggraini Susfarwanti Anna Sumardi Anna Sumardi Anna Sumardi Anna Sumardi Aptar Eka Lestari Aptar Eka Lestari Aptar Eka Lestari Aptar Eka Lestari Arfa Agustina Rezekiah Assyaifi, Zaini L Assyaifi, Zaini Lambri Asyiah Asyiah Aulia Rahma Aulia Rahma Aulia Rahma Aulia Rahma Aulia Rahma Awali S. K. Harivram Awali Sir Kautsar Harivram Chairul Irawan Dewi Puspita Sari Dewi Puspita Sari Dewi Rahmawati Suparsih Dhimas Ari Pratomo Dhiyaur Rahmah Didik Triwibowo Dina Amryna Chairul Putri Dina Naemah Dwi Rasy Mujiyanti Dwi Rasy Mujiyanti Eko Suhartono Elsa Nadia Pratiwi Era N R Oktaviana Erdina L. A. Rampun Erdina L.A Rampun Erdina Lulu Atika Rampun Erdina Lulu Atika Rampun Erdina Lulu Atika Rampun Erdina Lulu Atika Rampun Fitri Ria Mustalifah Fitri Ria Mustalifah Gazali, Akhmad Gusti Zahratunnisa Hesti Kesumadewi Hesti Wijayanti Husna Karima Iryanti Fatyasari Nata, Iryanti Fatyasari Isna Syauqiah Isna Syauqiah Isna Syauqiah Isna Syauqiah Isna Syauqiah Isna Syauqiah Junius Akbar Karmaili, Karmaili Kusumawati, Uun Lastuti Abubakar Lestari, Aptar Eka Lilis Septyaningrum Lilis Suryani Lilis Suryani Linda Suci Wati Linda Suci Wati Linda Suciwati M. Ihsan M. Mahmud M. Topan Darmawan Mahmud Mahmud Mahmud Mahmud Mahmud Mahmud Marhamah Marhamah Maulana Wahyu Noor Ramadhan Mawaddah, Yanti Meilana Dharma Putra Mijani Rahman, Mijani Mita Riani Rezki Mohd H. D. Othman Mufidah Nur Amalia Muhammad Agus Muljanto Muhammad Hasan Albana Muhammad Roil Bilad Muhammad Zulfadhilah Mustalifah, Fitri Ria Namira Ghina Safitri Ni Kadek Devi Ananda Saraswati Nia Kania Noor, Ahmad Rizali Noor, Ihsan Noor, M. Hafidhuddin Nopie Hadi Nor Aldina Norlian Ledyana Sari Nur baity Nur Hidayah Nur Riskawati Nur, Thoyib Nurhalisah Nurhalisah Nurul Huda Nurul Huda Paramita, Adhe Paskah Fransiska Afrida Simatupang Pratama, Reza Satria Kelik Pratiwi, Amalia E. Pratiwi, Elsa Nadia Rahma, Aulia Rahmawati Rahmawati Raissa Rosadi, Raissa Rampun, Erdina L.A. Rampun, Erdina Lulu Atika Retno Febriyanti Rezki, Mita Riani Rhafiq Abdul Ghani Rhafiq Abdul Ghani Rian Nugraha Putra Riani Ayu Lestari Rony Riduan Rosidah - Sadidan Rabiah Satria Anugerah Suhendra Sazila K. Rahman SITI FATIMAH Suciwati, Linda Suhendra, Satria Anugerah Sumardi, Anna Sunardi Sunardi sunardi sunardi Suryani, Made Yuri Syarifah Annahdliyah Thoyib Nur Totok Wianto Tri Handayani Viviana Viviana Wahyu Wahyu Wahyuddin Wahyuddin Wahyuddin Wahyuddin Yanti Mawaddah Yanti Mawaddah Yanti Mawaddah Yunandar Yunandar Yuniarti Yuniarti Yusri Yusri Yusuf Aziz Zaini Lambri Assyaifi Zaini Lambri Assyaifi Zaini Lambri Assyaifi Zaki, Dhimas Ekky Zaghlul