Publications Repository - Gdańsk University of Technology

Introduction Chlorinated ethanes and ethenes are among themost frequently detected organic pollutants of water. Theirphysicochemical properties are such that they can contaminateaquifers for decades. In favourable conditions, they canundergo degradation. In anaerobic conditions, chlorinatedsolvents can undergo reductive dechlorination.Degradation pathways Abiotic dechlorination is usuallyslower than microbial but abiotic dechlorination is usuallycomplete. In favourable conditions, abiotic reactions bringsignificant contribution to natural attenuation processes.Abiotic agents that may enhance the reductive dechlorinationof chlorinated ethanes and ethenes are zero-valent metals,sulphide minerals or green rusts.Oxidation At some sites, permanganate and Fenton'sreagent can be used as remediation tool for oxidation ofchlorinated ethanes and ethenes.Summary Nanoscale iron or bimetallic particles, due to highefficiency in degradation of chlorinated ethanes and ethenes,have gained much interest. They allow for rapid degradationof chlorinated ethanes and ethenes in water phase, but theyalso give benefit of treating dense non-aqueous phase liquid.

Authors

• dr hab. inż. Marek Tobiszewski link open in new tab ,
• prof. dr hab. inż. Jacek Namieśnik link open in new tab