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All Journal Tropical Aquatic and Soil Pollution INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Direstiyani, Lucky Caesar
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Energy Engineering Environmental Science

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SIDOARJO VOLCANIC MUD AS PROMISING FENTON CATALYST FOR REMOVAL OF CONGO RED DYE Parningotan, Samuel; Direstiyani, Lucky Caesar; Adityosulindro, Sandyanto
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 2, OCTOBER 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i2.20772

Abstract

Sidoarjo mud is a volcanic mud (VM) that continues erupting in Sidoarjo to this day. The VM has the potential to be used in water treatment technology as a reagent or catalyst due to enormous amount of discharged flow and rich mineral content. Heterogeneous Fenton is one promising process for maximizing the VM potential, however customization is essential to optimize the process. Aim: This study aimed to investigate the catalytic abilities of Sidoarjo VM in Fenton oxidation by several modification approaches, such as calcination (CVM), impregnation-calcination (ICVM), and unmodified (UVM). Methodology and results: Fenton oxidation was carried out in a batch reactor system with the following conditions: initial congo red (CR) concentration= 50 mg/L; VCR=300mL pH=2; agitation speed=300 rpm; catalyst dosage=0.5 g/L; dan H2O2 concentration=485 mg/L. The highest performance results were achieved when the process was combined with adsorption, at 90% (CVM), 55% (ICVM), and 52% (UVM), respectively. Conclusion, significance, and impact study: The Sidoarjo volcanic mud shows high potential as a Fenton catalyst in the UVM modification technique with CVM reveals to be more suitable as an adsorbent.
The Role of Microorganisms in the Degradation of Pesticides: A Sustainable Approach to Soil Remediation Varghese, Diya Merlin; Rubiyatno; Lie, Michael; Kristanti, Risky Ayu; Ruti, Annisa Andarini; Nadifah, Gina; Hossain, Ferdaus Mohd Altaf; Jannat, Md Abu Hanifa; Chairattanawat, Chayanee; Direstiyani, Lucky Caesar
Tropical Aquatic and Soil Pollution Volume 5 - Issue 1 - 2025
Publisher : Tecno Scientifica Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53623/tasp.v5i1.625

Abstract

The widespread use of pesticides in agriculture, aquaculture, and public health has led to severe environmental and public health concerns due to their overapplication and persistence in ecosystems. Pesticide residues accumulate in soil, degrade its fertility, pollute groundwater, and harm non-target organisms, including beneficial insects and aquatic life. This persistent contamination poses a significant threat to biodiversity, food safety, and ecosystem resilience. The aim of this review is to examine microbial bioremediation as a sustainable and effective strategy for remediating pesticide-contaminated soils. The paper evaluates the mechanisms by which microorganisms degrade or transform hazardous pesticide compounds into less toxic or non-toxic forms and assesses the advantages and limitations of bioremediation technologies. Notably, bioremediation is recognized for its environmental compatibility, cost-effectiveness, and potential to restore soil health without undermining agricultural productivity. Recent studies highlight promising microbial strains capable of degrading diverse classes of pesticides under varying environmental conditions. However, challenges remain, including the scalability of microbial technologies, the complexity of mixed-contaminant sites, and the influence of abiotic factors on microbial efficacy. Future research should focus on optimizing microbial consortia, integrating genetic and metabolic engineering approaches, and developing field-scale applications tailored to specific agroecosystems. Advancing these areas will be critical for establishing bioremediation as a central pillar in sustainable pesticide management and environmental restoration strategies.
Co-Authors Adityosulindro, Sandyanto Chairattanawat, Chayanee Hossain, Ferdaus Mohd Altaf Jannat, Md Abu Hanifa Lie, Michael Nadifah, Gina Parningotan, Samuel Risky Ayu Kristanti Rubiyatno Ruti, Annisa Andarini Varghese, Diya Merlin