What are the drawbacks of waste …
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Meghna Thapar 5 years, 6 months ago
Disadvantages
Impacts Air Quality
Sewage sludge incineration may impact the surrounding air quality. Combustion of waste materials may result in the production of fine inhalable particles laced with toxic metals. Research has shown that about 78 – 98% of Cadmium (Cd), Chromium (Cr), Copper (Cu), Nickel (Ni), Lead (Pb) and Zinc (Zn) remain in the ash. Fly ash are usually controlled via wet scrubbers, electrostatic precipitators, and bag filters.
Release of Dioxins
Sewage sludges may contain significant concentrations of hazardous metals, depending on their origin and the wastewater treatment. These toxic substances can result from incomplete combustion by using deficient technology or operating the incinerator incorrectly. Dioxins are carcinogenic and a serious public health threat.
Mercury Contamination
Mercury that results from incinerating waste occurs mainly via fly ash, bottom ash and filter cake. Almost all mercury compounds are hazardous even at very low concentrations in both aquatic and terrestrial ecosystems.
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