Article Per Year (5 Year)
p-Index From 2021 - 2026
2.426
P-Index
This Author published in this journals
All Journal VALENSI Jurnal Riset Kimia Jurnal Kimia dan Kemasan Jurnal Kimia Mulawarman Jurnal Kimia Riset JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Jurnal Biologi Tropis Indonesian Journal of Chemistry Jurnal Teknik Jurnal Inovasi Teknik Kimia Santika : Jurnal Ilmiah Sains dan Teknologi Jurnal Kimia dan Kemasan Prosiding Konferensi Nasional PKM-CSR Makara Journal of Science Jurnal Teknologi dan Inovasi Industri
Lela Mukmilah Yuningsih
Universitas Muhammadiyah Sukabumi
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences

Published : 26 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search
Journal : Makara Journal of Science

 1 
Simultaneous Combination of Electrocoagulation and Chemical Coagulation Methods for Medical Wastewater Treatment Muharam, Salih; Yuningsih, Lela Mukmilah; Rahmah, Citra Ibdau
Makara Journal of Science Vol. 21, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Chemical coagulation, electrocoagulation, and combined electrocoagulation-chemical coagulation methods were used to reduce organic compound concentrations in medical wastewater. Some parameters in the methods were adjusted to optimize the process, including the applied current, distance between electrodes, number of electrodes, acid levels, coagulant type, and contact time. Chemical Oxygen Demand (COD) was used to indicate the total amount of organic compounds in the system. The results showed that the following conditions can be applied to achieve optimum results: 3 A of applied current, 4 pairs of electrodes, with 1 cm of distance between each electrode pair, a pH of 8, 1 g of polyaluminum chloride as the coagulant, and 3 hours of contact time. The optimum removal efficiency levels of total organic compound achieved via chemical coagulation, electrocoagulation, and the simultaneous combination of electrocoagulation-chemical coagulation methods were 41%, 62.51%, and 92.21%, respectively.
Sansevieria trifasciata Properties as Lead(II) Ion Biosorbent Yuningsih, Lela Mukmilah; Batubara, Irmanida; Darusman, Latifah Kosim
Makara Journal of Science Vol. 18, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sansevieria trifasciata (also called snake plant or mother in law’s tongue) is predicted to act as a heavy metal biosorbent. S. trifasciata was optimized as a biosorbent by using the response surface method with varying weights of S. trifasciata, pH of Pb (II) solutions, contact times, and temperatures. The ion concentration before and after biosorption was measured with an atomic absorption spectrophotometer (AAS). The optimum biosorption conditions were pH 7, 240 min contact time, and 1.5 g biosorbent with biosorption capacity of Pb (II) ions 0.725 mg/g. The biosorption isotherm analysis showed that the biosorption is consistent with the Freundlich isotherm model. The peak intensity of the FTIR spectrum of S. trifasciata after treatment with Pb (II) was around 2130/cm. The S. trifasciata micrograph showed a porous structure with non-uniform pore sizes. The biosorption of Pb (II) ions on powdered S. trifasciata leaves was found with the SEM EDX analysis. It is concluded from this research that S. trifasciata can be used as a biosorbent to remove Pb ion contamination.
Co-Authors A Jaka Kurnia Afria Fitri Agustina, Rosita Asep Kadarohman Citra Ibdau Rahmah Desi Kusumawati Devi Indah Anwar Devia Indriani Dikdik Mulyadi Dikdik Mulyadi Fauzia, Wafa Fitri Khairani Nasution Iim Sulaeman Rohana Iljannah, Nissa Irmanida Batubara Isman Kurniawan Isnaini Rahmawati Karisma, Siska La Ode Sumarlin Laksono Trisnantoro LATIFAH KOSIM DARUSMAN Latifah Kosim Darusman Lela Lailatul Khumaisah Lestari, Sintia Nur Laila Arizal Purwoko, Agus Rahmah, Citra Ibdau Ratna Istianah Reni Mulyani Riza Rizki Islani Rizki, Alfath Muhammad Salih Muharam Sapitri, Nazwa Martina Sintia Lestari Sita Sopatul Marwah Siti Inayah Turdini, Shopi Wicaksana, Septiar Agung Winda Apriandari Yulia Mariana Tessa Ayudia Putri Yusri Mutia Fauziyah