Abstract

SANCHEZ, Juan de Dios Aguilar  and  IRIGOIN, Napoleón Cubas. Agricultural pollution from wastewater use. Rev. Inv. Cs. Agro. y Vet. [online]. 2021, vol.5, n.13, pp.65-77. ISSN L:2664-0902.  https://doi.org/10.33996/revistaalfa.v5i13.98.

The objective of this research was to show the pollution index of agricultural production due to the use of wastewater. The methodology used was an experimental, documentary and descriptive field investigation, samples of residual water were taken from the basins formed by the San Mateo, Colpamayo, San Juan and Río Chotano streams. They were analyzed and it was observed that the wastewater does not meet the adequate requirements to be used for irrigation. Samples of vegetables watered with these waters were also taken and contamination was detected due to the presence of coliforms, streptococci and salmonella. As a conclusion, it can be mentioned that the physical and aggregation parameters for the untreated wastewater from the San Mateo, Colpamayo, San Juan and Río Chotano streams from the city of Chota were identified, where it is established that only two parameters: the pH and the solids in total suspended are between the suitable values. Temperature and turbidity are out of range due to excess values and dissolved oxygen, electrical conductivity; total dissolved solids are out of range due to not reaching the minimum value. Among the non-metallic inorganic parameters that are in the acceptable values are: alkalinity, chlorides, hardness, nitrates, nitrites, sulfates and chemical oxygen demand and those who are not in the correct values are: phosphates, ammonium, and chemical oxygen demand.

Keywords : Wastewater; Pollution; Samples; Coliforms.

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