Assessment Of The Environmental Impacts Resulting From The Presence Of Surface Agents In The Discharge From An Urban Water Cleaning Station In Algeria By Life Cycle Assessment Method

M. Belkhir, K. Louhab, S. Bougherara


Abstract: The poor assessment of the environmental performance of water treatment systems led us to apply the life cycle assessment approach to a wastewater treatment plant. The purpose of our work is to evaluate the environmental impacts of the surfactants release from an existing urban wastewater treatment plant with a capacity of 35000 m3/inhabitant located in the city center of Boumerdés 45 km from the capital Algiers

The article presents an evaluation of the environmental impacts of the surfactants release .This evaluation was established using Simapro8.1 software and the Midpoint ILCD version 1.03 methods.

The results of evaluation show four impact categories are evaluated; - Human toxicity, Fresh water eutrophication, Marine eutrophication and Fresh water ecotoxicity. All the impact categories evaluated contribute to the surfactants fixed in the functional unit alcohol ether sulfate (AES), hexadecyl trimethyl bromide ammonium (CTAB) and Betaine of lauramidopropyl (BLP) of three different anionic, cationic and amphoteric types, respectively.

Finally, we conclude from the results obtained that the value of the impact of ecotoxicity is the highest (3, 24E-4 CTUe) compared to the other impact categories whose impact category represents the impact significant.

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