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Farid Ramadhan
Universitas Pakuan
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Karakterisasi dan Aplikasi Arang Aktif Batang Pisang untuk Adsorpsi Remazol Brilliant Blue dalam Limbah Industri Batik Junita Darmawarni; Farid Ramadhan; Susanto Susanto; Siti Warnasih
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 5 (2025): Oktober 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i5.6525

Abstract

The batik industry produces waste containing dyes from the process of dyeing batik cloth. Remazol brilliant blue (RBB) is a reactive dyestuff, used in the fabric dyeing process. RBB levels in waste can be reduced by means of adsorption using activated banana stem charcoal. This study aims to make, characterize and test the quality of activated charcoal from banana stems, determine the optimum conditions, adsorption capacity and RBB adsorption isotherm model and its application in absorbing RBB in Bogor batik industrial waste. The results showed that the intensity of the functional groups in the FTIR spectrum of activated charcoal was greater, with the surface morphology in SEM indicating that the pores of the activated charcoal were more open than the charcoal before activation. The quality of activated banana stem charcoal meets the requirements of SNI No.06-3730-1995 for 0.63% moisture content, 13.30% volatile matter content, 80.67% carbon content and 88.65 mg/g methylene blue absorption capacity. Optimum adsorption conditions occurred at pH 8, contact time 120 minutes, and 1 gram weight of activated charcoal for 50 mL of batik waste. The adsorption process suitable for the adsorption of remazol brilliant blue is the Freundlich isotherm with a maximum adsorption capacity of 10.7411 mg/g and an adsorption efficiency of 96.29%. Characterization of batik waste after adsorption meets the requirements of PermenLHK No.16 of 2019 for parameters pH 8.37, color test 194.3 PtCo and Total Suspended Solid (TSS) 38.6 mg/L.
Kualitas Air Tanah dan Peta Sebaran Kualitasnya di Sekitar Tempat Pembuangan Akhir (TPA) Galuga Sri Melianti Rahayu; Farid Ramadhan; Teti Syahrulyati; Sutanto Sutanto
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 6 (2025): Desember 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i6.6526

Abstract

The increasing population has resulted in a higher volume of waste at the Galuga landfill, generating leachate that potentially contaminates the surrounding shallow groundwater. Groundwater serves as a crucial source for domestic needs; thus, its contamination poses serious health risks and threatens ecological balance. This study aims to analyze the quality of shallow groundwater around the Galuga landfill and to map its spatial distribution as a foundation for sustainable environmental monitoring and management. The research methods included collecting groundwater samples from seven representative points along the groundwater flow direction, analyzing physical parameters (temperature, pH, turbidity), chemical parameters (Fe, Mn, NO₃⁻, and Cl⁻), and microbiological parameters (E. coli and total coliform), followed by calculating the Water Quality Index (WQI) using the NSF-WQI method. The findings revealed that several parameters, particularly Fe, Mn, E. coli, and total coliform, exceeded the permissible drinking water standards established by the Indonesian Ministry of Health Regulation No. 492/Menkes/Per/IV/2010. The average WQI score of 61.30 indicates a moderate water quality category. Therefore, it can be concluded that the shallow groundwater surrounding the Galuga landfill has been contaminated and is not suitable for direct consumption as drinking water. Consequently, it is recommended to implement more effective leachate management systems and conduct regular groundwater quality monitoring to prevent further contamination and safeguard community health and environmental sustainability.
Co-Authors Junita Darmawarni Siti Warnasih Sri Melianti Rahayu Susanto Susanto Sutanto Sutanto Teti Syahrulyati