Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Sinergi Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis
Erlangga, Reza
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Characterization of Eichhornia crassipes bio-adsorbent activated by H3PO4 for the removal of lead ion (Pb2+) from wastewater of battery industry Erlangga, Reza; Sari, Dessy Agustina; Wahyuningtyas, Aulia
SINERGI Vol 29, No 2 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.2.002

Abstract

Lead ion (Pb2+) contamination from battery industry wastewater affects significant environmental and health risks. This study explored the use of H3PO4-activated water hyacinth (WH) bio-adsorbent as an effective solution for removing Pb2+. The WH bio-adsorbent was prepared by activating dried water hyacinth stems with 1.2 M H3PO4, enhancing adsorption properties. SEM-EDX analysis revealed significant morphological changes, with increased porosity and oxygen-containing functional groups (O-H, C-O-P), which improved adsorption capacity. Adsorption kinetics followed a pseudo-second-order model (R2 = 0.99981), indicating that chemisorption dominated the Pb2+ removal process. Adsorption isotherms firmly fit the Langmuir model (R2 = 0.96), confirming monolayer adsorption on a homogeneous surface. The effect of pH was also investigated, with maximum adsorption efficiency (96.928%) observed at pH 7. FTIR analysis showed changes in functional groups before and after adsorption, confirming the ion exchange mechanism between Pb2+ and the activated bio-adsorbent. The findings suggest that H3PO4 activation increases the surface area and raises the chemical activity of WH, providing new insights into the dual mechanism of physical and chemical modifications for lead removal. This study addresses a critical gap in optimizing adsorbents for heavy metal removal, demonstrating the potential of H3PO4-activated WH for industrial wastewater treatment.
Dampak Sosial Ekonomi Perkebunan Karet Terhadap Masyarakat Sekitarnya (Studi Kasus di Desa Lengkong Kecamatan Cipeundeuy Kabupaten Subang). Erlangga, Reza; Wiyon, Sulistyodewi Nur; Mukti, Gema Wibawa; Fatimah, Sri
Mimbar Agribisnis : Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 10, No 2 (2024): Juli 2024
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v10i2.14192

Abstract

This research was conducted in Lengkong Village, Cipeundeuy District, Subang Regency, West Java Province, from February to April 2024 with the aim of analyzing the social and economic impact of rubber plantations on the surrounding community. The sampling method used was purposive sampling, namely selecting 10-15% of the available sample population. A total of 15 tapping workers were selected as samples, which is 10% of the total 150 tapping workers in Lengkong Village. Meanwhile, 15 households around the rubber plantation were also taken as samples, in line with the number of tapping workers sampled. The main data analysis was carried out using a qualitative approach, where the results of interviews and observations were recorded in detail in field notes, which were then analyzed descriptively. The research results show that there is a socio-economic impact from the presence of rubber plantations for the surrounding community, both tapping workers and non-tapping workers. This impact can be seen through increasing welfare through the various facilities provided. These facilities include housing, health services, education, places of worship, sports facilities, employment opportunities and sources of income. All facilities provided by the company are intended for the general benefit of the surrounding community, marking mutually beneficial cooperation between the rubber plantation company and the surrounding community.
Co-Authors Dessy Agustina Sari Gema Wibawa Mukti Sri Fatimah Wahyuningtyas, Aulia Wiyon, Sulistyodewi Nur