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|Title:||Abatement of organic pollutant concentrations in residual treatment sludges: A review of selected treatment technologies including drying|
|Keywords:||Advanced oxidation process (aop)|
Persistent organic pollutants (pops)
|Source:||Tunçal, T., Jangam, S.V., Günes, E. (2011-11). Abatement of organic pollutant concentrations in residual treatment sludges: A review of selected treatment technologies including drying. Drying Technology 29 (14) : 1601-1610. ScholarBank@NUS Repository. https://doi.org/10.1080/07373937.2011.602307|
|Abstract:||As a result of increasing population, industrialization, and effluent quality, sludge production has increased worldwide. Organic micropollutants in sludge have become a more critical environmental health concern compared to heavy metals. New sludge disposal regulations limit persistent organic pollutants (POPs) in addition to conventional organic indicators like total and dissolved organic carbon. This study aims at providing a brief review on POP concentration in the sludge in different regions of the world, sludge regulations, assessment of conventional biological sludge stabilization methods according to their ability to remove POPs, and discussions on alternative sludge treatment methods. The impact of sludge treatment unit operations including conditioning, thickening, mechanical and thermal dewatering, and biological and thermal stabilization on sludge management is also discussed in the context of organics. The occurrence and removal of micropollutants such as absorbable organic halogen compounds (AOX), nonylphenol and nonylphenol ethoxylates (NPE), di-2-(ethyl-hexyl)-phthalate (DEHP), dibenzo-p-dioxins and furans (PCDD/F), polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) are also evaluated specifically for sludge treatment unit operations. A concise discussion is also includedon different drying technologies suitable for drying of sludge. © 2011 Taylor & Francis Group, LLC.|
|Source Title:||Drying Technology|
|Appears in Collections:||Staff Publications|
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