Characterization and treatment of organic constituents in landfill leachates that influence the UV disinfection in the publicly owned treatment works (POTWs)

Zhao, Renzun; Gupta, Abhinav; Novak, John T.; Goldsmith, C. Douglas; Driskill, Natalie M.

doi:10.1016/j.jhazmat.2013.04.026

Cited by 38 publications

(37 citation statements)

References 27 publications

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“…However, the benefits of this option have diminished in many cases due to adverse impacts from the leachate discharged to POTWs, as it can significantly interfere with UV disinfection performance after the introduction of strongly UV-quenching substances in the leachate [55]. The emerging issue is seriously challenging the solid waste industry because a regulatory trend toward less chlorination disinfection by-products (DBPs), but with the same pathogen inactivation requirement, is forcing POTWs to turn from traditional chlorination to alternative UV disinfection.…”

Section: Aops For Mitigation Of Uv-quenching Organic Matters In Landfmentioning

confidence: 99%

Advanced Oxidation Processes (AOPs) in Wastewater Treatment

2015

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Advanced oxidation processes (AOPs) were first proposed in the 1980s for drinking water treatment and later were widely studied for treatment of different wastewaters. During the AOP treatment of wastewater, hydroxyl radicals (OH·) or sulfate radicals (SO 4 ·− ) are generated in sufficient quantity to remove refractory organic matters, traceable organic contaminants, or certain inorganic pollutants, or to increase wastewater biodegradability as a pre-treatment prior to an ensuing biological treatment. In this paper, we review the fundamental mechanisms of radical generation in different AOPs and select landfill leachate and biologically treated municipal wastewater as model wastewaters to discuss wastewater treatment with different AOPs. Generally, the treatment efficiencies rely heavily upon the selected AOP type, physical and chemical properties of target pollutants, and operating conditions. It would be noted that other mechanisms, besides hydroxyl radical or sulfate radical-based oxidation, may occur during the AOP treatment and contribute to the reduction of target pollutants. Particularly, we summarize recent advances in the AOP treatment of landfill leachate, as well as advanced oxidation of effluent organic matters (EfOM) in biologically treated secondary effluent (BTSE) for water reuse.

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Section: Aops For Mitigation Of Uv-quenching Organic Matters In Landfmentioning

confidence: 99%

Advanced Oxidation Processes (AOPs) in Wastewater Treatment

2015

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“…Apesar do elevado percentual de municípios que possuem vazadouros a céu aberto, no Brasil e em diversos países, os aterros representam a principal destinação dos RSU (MONTEIRO et al, 2006;ZHANG et al, 2011;SANG et al, 2012;ZHAO et al, 2013;OTHMAN et al, 2013).…”

Section: Os Resíduos Sólidos Urbanos (Rsu) Nos Termos Da Leiunclassified

Estudo comparativo da contaminação por micro-organismos patogênicos em resíduos domiciliares e de saúde em Uberlândia (MG)

Chayb¹,

Kozusny-Andreani²

2015

Rev. Bras. Ciênc. Ambient. (Online)

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“…Generally, HS are abundant in the leachate representing up to 90% of DOC, while the HAs account for 0.4% -44% and FAs comprise 23% -56 % [28][29][30]. As landfill ages and humidification process proceeds, HS percentage in leachate increases [28,31].…”

Section: Introductionmentioning

confidence: 99%