Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the...

Area of Science:

• Environmental Science
• Water Quality Assessment
• Analytical Chemistry

Background:

• Cassava processing is a significant industry in rural areas.
• Inadequate disposal of processing effluents can contaminate water resources.
• Understanding water quality is crucial for environmental protection.

Purpose of the Study:

• To evaluate the water quality of artesian wells and cassava processing effluents.
• To analyze physicochemical parameters, multielement composition, and cyanogenic compounds.
• To identify environmental risks associated with cassava processing waste.

Main Methods:

• Water sampling from artesian wells and processing effluents.
• Analysis of physicochemical parameters (pH, residual chlorine, etc.).
• Multielement analysis and determination of cyanogenic compounds.
• Multivariate statistical analysis for data interpretation.

Main Results:

• Artesian well water showed low pH and high residual chlorine.
• Effluents exceeded legal limits for total and free cyanide.
• Elevated levels of boron and copper in well water; manganese and nickel in effluents.
• Distinct physicochemical profiles between well water and effluents were identified.

Conclusions:

• Cassava processing effluents present significant environmental and health risks due to cyanide and heavy metal contamination.
• Artesian well water quality is compromised, requiring attention.
• Improved management and treatment of cassava processing effluents are essential to safeguard water resources.