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The presence of microplastics in waste sludges
Summary
This Croatian review examines the presence of microplastics in sewage sludge from wastewater treatment plants and their pathways into terrestrial and aquatic environments. The authors discuss alternative sustainable sludge management approaches aligned with circular economy principles.
Onečišćenje mikroplastikom (MP) postaje sve veći problem na globalnoj razini. Čestice MP toksična su onečišćivala koja svojom prisutnošću i aglomeriranjem znatno utječu na ekosustav tla, organizme i naposlijetku na zdravlje ljudi. Njihova mogućnost interakcije s drugim onečišćujućim tvarima, sklonost da ih živi organizmi progutaju i dugovječnost predstavlja ozbiljnu prijetnju okolišu. Navedene čestice ulaze u okoliš putem pročišćenih otpadnih voda ili otpadnih muljeva iz uređaja za pročišćavanje. Svrha ovog rada je dati pregled o prisutnosti MP u otpadnim muljevima i njihovog utjecaja na okoliš. Otpadni muljevi su nusprodukti uređaja za pročišćavanje otpadnih voda. Njihova važnost se povećala kako su se počeli promatrati kao izvor energije, a ne kao otpadni proizvodi. Obzirom da uz hranjive tvari sadržavaju i određenu količinu onečišćujućih tvari poput MP, otpadni muljevi djeluju kao ulaz različitih onečišćivala u kopnene i vodene sredine. Ovim radom ukazat će se alternativne metode za održivo upravljanje otpadnim muljevima koje su u skladu sa provođenjem kružnog gospodarstva.
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