Development of the basics of complex technology for capturing and disposing of heavy metals from surface drains of citiesстатья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 7 июля 2021 г.
Аннотация:For the first time, the basics of waste-free technology for capturing heavy metal ions from urban surface runoff from residential areas of the city with the final utilization of the regenerate were developed. The technology eliminates the subsequent contamination of the lithosphere and atmosphere by regeneration products. The expediency of using fibrous chemosorbents (cationic and polyampholyte) for capturing heavy metal ions from urban surface runoff of residential areas of megalopolises has been justified because of possibility of recycling heavy metal ions and regenerating the sorbent. Model solutions of Fe, Cu, Zn, Pb salts, as well as samples of solutions of real surface effluents were studied. Small experimental samples of filters of various designs were designed and manufactured. The filters were tested at a functioning treatment facility. It was demonstrated that the content of Fe3+, Cu2+, Zn2+, and Pb2+ ions in real surface effluents decreased by 1.4–7 times after passing the effluents even through these small experimental filters. The expediency and possibility of recycling the regenerate as inorganic pigments for the paint industry is shown.