Removal of Chromium from Poultry Slurry Using Rice Straw as Locally Available Adsorbent

DOI

10.2991/978-94-6463-884-4_45How to use a DOI?

Keywords

Rice Straw; Poultry Slurry; Heavy Metals; Treated Straw; Environmental Pollution; Adsorption

Abstract

Poultry farms in Bangladesh generate millions of tons of slurry annually, containing high concentrations of heavy metals, making the manure unsuitable for agricultural use. Poultry sludge contains heavy metals like chromium, cadmium, and lead, which can accumulate and pose serious environmental and health risks. Chromium is especially toxic and carcinogenic, potentially causing cancer, organ damage, and contamination. Hence, this research focuses on the removal of chromium from poultry slurry to reduce heavy metal concentrations using a suitable, low-cost, easily available, and environmentally friendly adsorbent for the treatment of biogas slurry. The study includes characterizing the slurry, optimizing adsorption parameters for chromium removal, and minimizing environmental pollution. A total of 17 liquid samples were prepared, including one mother sample, and upon drying, approximately 2 g of solid ground material was obtained from each. The samples were dried in the laboratory and analyzed using a Hot Plate and Atomic Absorption Spectrometer. Rice straw, cut into 1–1.5-inch pieces, was used to adsorb Cr from slurry, with one portion mixed with 0.1N NaOH (treated straw) and dried for one day, while the other portion was left untreated. Chromium removal ranges from 4.62% to 20.57%, with the highest efficiency of 20.57% achieved using 40 g of treated adsorbent for 50 min contact period. The optimum contact time was found to be 60 min for both treated and untreated rice straw when the adsorbent was 25g. Future studies should investigate the effect of temperature, pH and other heavy metals to optimize and enhance the treatment process.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Hridoy Hasan
AU  - Md. Masrub Ahmmad
AU  - Mahiman Zinnurain
AU  - Md. Shariar Nur
AU  - Md. Habibur Rahman
PY  - 2025
DA  - 2025/11/18
TI  - Removal of Chromium from Poultry Slurry Using Rice Straw as Locally Available Adsorbent
BT  - Proceedings of the 8th International Conference on Engineering Research, Innovation, and Education 2025 (ICERIE 2025)
PB  - Atlantis Press
SP  - 376
EP  - 382
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-884-4_45
DO  - 10.2991/978-94-6463-884-4_45
ID  - Hasan2025
ER  -