A feasibility study on optimization of combined advanced oxidation processes for municipal solid waste leachate treatment

Umamaheswari, J.; Bharathkumar, T; Shanthakumar, S.; Gothandam, Kodiveri Muthukaliannan

doi:10.1016/j.psep.2020.06.040

Cited by 26 publications

(4 citation statements)

References 37 publications

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“…COD and NH 3 -N received 72% and 80% of the treatment, respectively, and the ozonation process decreased their concentrations by 45% and 50%, respectively. The peroxone procedure with a concentration of H2O2 achieved the highest abatement, yielding 61% of COD and 59.7% of NH 3 -N. The Response Surface Methodology (RSM)'s Central Composite Design (CCD) produced results by photolytic oxidation that were superior to those of the peroxone and ozonation processes [56].…”

Section: Advanced Oxidation Process (Aop)mentioning

confidence: 99%

Landfill Leachate: Review of various treatment approaches

Lokesh Sapkota,

Rajendra Joshi,

Anish Ghimire

et al. 2023

Jnl Innov. Engin. Educ.

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The burning issue of Solid waste management has become more prevalent in municipals of emerging nations as a combined effort of population growth, economic expansion, and rising living standards. In Nepal, 48.6% of municipalities choose to pile rubbish in landfills, while the remaining municipalities choose to burn their waste or pile it up along rivers. Leachate, a hazardous pollutant that harms soil, ground and surface water, human health, hygiene, and aquatic life, is a liquid produced from the bottom of solid waste disposal facilities.Leachate is treated via three processes: physical, chemical, and biological in landfills. The goal of the current paper is to review the leachate treatment options currently on the market. Instead of adopting a single treatment procedure, with physical and chemical process in combination of biological treatment has shown the effective performance. The onsite leachate solution is given an appropriate low cost option via land treatment of the landfill leachate. Cover soil can be thought of as a primary component of landfill operating strategy for separating trash from the environment and employed as a medium for the reduction of organic loads and specific toxic metals in leachate. This paper will be helpful in examining the many alternatives for treating landfill leachate.

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Section: Advanced Oxidation Process (Aop)mentioning

confidence: 99%

Landfill Leachate: Review of various treatment approaches

Lokesh Sapkota,

Rajendra Joshi,

Anish Ghimire

et al. 2023

Jnl Innov. Engin. Educ.

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“…Advanced oxidation processes (AOPs) are an approach to remove bio-refractory and toxic component produced from leachate (Mahtab et al, 2020). AOPs efficiently mineralize the recalcitrant compounds into decomposable mixtures, preventing leachate spillage into the environment (Mahtab et al, 2020;Umamaheswari et al, 2020). Therefore, adopting such technology can minimize leachate runoff into the groundwater, streams, and rivers, thereby preventing soil and water pollution.…”

Section: Research and Technologymentioning

confidence: 99%

Solid Waste Management in Indian Himalayan Region: Current Scenario, Resource Recovery, and Way Forward for Sustainable Development

et al. 2021

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With the growing population, solid waste management (SWM) is becoming a significant environmental challenge and an emerging issue, especially in the eco-sensitive Indian Himalayan region (IHR). Though IHR does not host high local inhabitants, growing tourist footfall in the IHR increases solid wastes significantly. The lack of appropriate SWM facilities has posed a serious threat to the mountain-dwelling communities. SWM is challenging in the highlands due to the remoteness, topographical configuration, increasing urbanization, and harsh climate compared to plain areas. Difficulty in managing SWM has led to improper disposal methods, like open dumping and open burning of waste, that are adversely affecting the fragile IHR ecosystem. Open dumping of unsegregated waste pollutes the freshwater streams, and burning releases major pollutants often linked to the glacier melt. Processes like composting, vermicomposting, and anaerobic digestion to treat biodegradable wastes are inefficient due to the regions' extreme cold conditions. IHR specific SWM rules were revised in 2016 to deal with the rising problem of SWM, providing detailed criteria for setting up solid waste treatment facilities and promoting waste-to-energy (WtE). Despite governments' effort to revise SWM; measures like proper collection, segregation, treatment, and solid waste disposal needs more attention in the IHR. Door-to-door collection, segregation at source, covered transportation, proper treatment, and disposal are the primary steps to resource recovery across the IHR. Approaches such as waste recycling, composting, anaerobic digestion, refuse-derived fuel (RDF), and gas recovery from landfills are essential for waste alteration into valuable products initiatives like 'ban on single-use plastic' and 'polluters to pay' have a potential role in proper SWM in the IHR. Research and technology, capacity building, mass awareness programs, and initiatives like ‘ban on single-use plastic’ and ‘polluters to pay’ have a potential role in proper SWM in the IHR. This review highlights the current status of waste generation, the current SWM practices, and SWM challenges in the IHR. The review also discusses the possible resource recovery from waste in the IHR, corrective measures introduced by the government specific to IHR and, the way forward for improved SWM for achieving sustainable development of the IHR.

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“…Over the last few decades, diverse advanced oxidation processes, namely peroxone, ozonation, and electro-oxidation, have been carried out for wastewater treatment through hydroxyl-free radical (HȮ) production [6,7]. Peroxone technique is a blend of hydrogen peroxides (H 2 O 2 ) and ozone (O 3 ), and on this account several free radicals are produced, which oxidize waste organic compound present in water, but requirement of hydrogen peroxide enhances its cost as well as its storage and transport problem [8].…”

Section: Introductionmentioning

confidence: 99%

“…Photo-electro-peroxone is fundamentally hybrid of three elementary approaches, which include ozonation, electrolysis, and photolysis; these methodologies were coupled to endorse full abatement of pollutants by ȮH formation, which could be proceeded either through Eq. (7) or through (8) via PEP approach [28]. This process is expedience with elegant performance even at acidic media where photosynthesized electron within conduction band of a semiconductor bismuth oxychloride (BiOCl) interacts with ozone to yield ozone-free radicals (Ȯ 3 À ) based on Eqs.…”

Section: Introductionmentioning

confidence: 99%

Electro-Peroxone and Photoelectro-Peroxone Hybrid Approaches: An Emerging Paradigm for Wastewater Treatment

Fatima¹,

Fazal²,

Shaheen³

2022

Wastewater Treatment

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Electrochemical advanced oxidation practices (EAOPs), remarkably, electro-peroxone (EP), photoelectro-peroxone (PEP), and complementary hybrid EP approaches, are emerging technologies on accountability of complete disintegration and elimination of wide spectrum of model pollutants predominantly biodegradable, recalcitrant, and persistent organic pollutants by engendering powerful oxidants in wastewater. A concise mechanism of EP and PEP approaches along with their contribution to free radical formation are scrutinized. Furthermore, this chapter provides a brief review of EP, PEP, and complementary hybrid EP-based EAOPs that have pragmatically treated laboratory-scale low- and high-concentrated distillery biodigester effluent, refractory pharmaceutical, textile, herbicides, micropollutant, organic pollutant, acidic solution, landfill leachates, municipal secondary effluents, hospital, and industries-based wastewater. Afterward, discussion has further extended to quantitatively evaluate energy expenditures in terms of either specific or electrical energy consumptions for EP and PEP practices through their corresponding equations.

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A feasibility study on optimization of combined advanced oxidation processes for municipal solid waste leachate treatment

Cited by 26 publications

References 37 publications

Landfill Leachate: Review of various treatment approaches

Landfill Leachate: Review of various treatment approaches

Solid Waste Management in Indian Himalayan Region: Current Scenario, Resource Recovery, and Way Forward for Sustainable Development

Electro-Peroxone and Photoelectro-Peroxone Hybrid Approaches: An Emerging Paradigm for Wastewater Treatment

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