Organic matter sedimentable without discharge of affluents in the Parcona lagoon, Ica-Peru

Authors

DOI:

https://doi.org/10.62430/rtb20242211747

Keywords:

aerobic decomposition, facultative digestion, organic composition, oxidation pond, sedimentation

Abstract

In the oxidation ponds, there is an alarming accumulation of sedimentable organic matter, despite the absence of direct tributaries. Although the presence of potentially contaminating elements is suspected, their origin and repercussions still require clarification. It is necessary to determine the organic matter to assess the value of sedimentation in this context. The aim of the study was to evaluate the concentration of sedimentable organic matter without effluent discharge in the Parcona Lagoon, Ica-Peru. The Walkley-Black method was used to determine the organic matter in the sediments. After preparing the sample with specific reagents, absorbance at 590 nm was measured using a DR-5000 UV-vis spectrophotometer, with reference standards for calibration. A concentration was found at the five sampling points of 3.87; 4.13; 2.96; 3.44; and 2.21 mg/kg, respectively. The concentration of organic matter was considered as medium to very high (1.6-3.5 / 3.6-6.0), according to the Official Mexican Standard NOM-021-RECNAT-2000. The high percentage of sedimentable organic matter, without effluents, indicates a significant accumulation of material in the environment. This suggests internal processes related to plant decomposition, organic residues, or biological activity, highlighting the need for proper study and management.

Downloads

Download data is not yet available.

Published

2024-04-09

How to Cite

De la Torre-Castro, R. A., Belli-Carhuayo, F. R., Carrasco-Gonzáles, J. A., & Argota-Pérez, G. (2024). Organic matter sedimentable without discharge of affluents in the Parcona lagoon, Ica-Peru. The Biologist, 22(1). https://doi.org/10.62430/rtb20242211747