Pollutants in drinking water and waste water

Area of Science:

• Environmental Chemistry
• Analytical Chemistry
• Water Quality Analysis

Background:

• Wastewater treatment plants (WWTPs) release effluents containing various chemical compounds.
• Drinking water sources can be contaminated by pollutants from WWTPs and other anthropogenic sources.
• Surface-active compounds and their degradation products are prevalent in aquatic environments.

Purpose of the Study:

• To analyze drinking water and WWTP effluents for the presence of pollutants.
• To identify and characterize surface-active compounds and their degradation products.
• To present and discuss challenges in pollutant separation, detection, and identification, proposing solutions.

Main Methods:

• Gas chromatography-mass spectrometry (GC-MS) for pollutant analysis.
• High-performance liquid chromatography (HPLC) with UV and/or MS detection.
• Thermospray ionization and tandem mass spectrometry (MS/MS) with collision-induced dissociation for identification.

Main Results:

• Most pollutants identified in drinking water and effluents were surface-active compounds of anthropogenic origin or their degradation products.
• Analytical challenges in separation, detection, and identification of these compounds were encountered.
• Specific analytical methods were employed to address these challenges.

Conclusions:

• Advanced analytical techniques are crucial for identifying anthropogenic pollutants in water.
• Surface-active compounds are significant contaminants in both drinking water and wastewater effluents.
• The study highlights the need for robust methods to monitor water quality and manage pollution.