A comparative study of two composts as filter media for the removal of gaseous reduced sulfur compounds (RSCs) by biofiltration: Application at industrial scale

Hort, Cécile; Gracy, S.; Platel, Vincent; Moynault, Laurent

doi:10.1016/j.wasman.2012.09.009

Cited by 21 publications

(12 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Therefore, the composition and characteristics of the composting material may significantly influence VSC profiles. Third, temperature and aeration rates greatly affect the microbial community during composting (Hort et al, 2013;Zhang et al, 2016), which consequently affects the forms and emissions fluxes of the derivative VSCs. In fact, within the same composting pile, the forms and emissions fluxes of VSCs have been shown to fluctuate over time (Zhang et al, 2016).…”

Section: Tablementioning

confidence: 99%

“…During biofiltration, the malodorous gas stream passes through filtration media, where the malodorous gases are adsorbed and biologically degraded into nontoxic end-products, such as carbon dioxide, water, and biomass (Galera et al, 2008). The filtration media generally consists of one or more beds of solid biologically active material, such as mature compost, peat, wood bark, wood chips, soil, sludge, synthetic media, or a combination of these products (Schlegelmilch et al, 2005;Pagans et al, 2006;Yin and Xu, 2009;López et al, 2011;Ryu et al, 2011;Hort et al, 2013). Numerous lab-, pilot-, and full-scale studies have shown the effectiveness of various biofiltration systems on the removal of various carbon-, nitrogen-and sulfur-based malodors (Schlegelmilch et al, 2005; Table 2 A summary of the various bulking agents on odor prevention.…”

Section: Tablementioning

confidence: 99%

“…NA: not analyzed; √ : positive effect; : no obvious effect; × : negative effect. Galera et al, 2008;Ryu et al, 2011;Hort et al, 2013); a summary of these studies is provided in Table 3. Ryu et al (2011) reported a high removal efficiency for both ammonia and VOC malodorous gas generated in a food waste composting plant via a polyurethane-mediated lab-scale biofilter.…”

Section: Referencementioning

confidence: 99%

See 2 more Smart Citations

Environmental challenges impeding the composting of biodegradable municipal solid waste: A critical review

Wei

Shi

et al. 2017

Resources, Conservation and Recycling

245

View full text Add to dashboard Cite

Biodegradable material, primarily composed of food waste, accounts for 40-70 wt% of municipal solid waste (MSW) in developing countries. Therefore, to establish a sustainable waste management system, it is essential to separate and recycle biodegradable organic material from the municipal waste stream. Of all the recycling methods, composting is recommended due to its environmental and economic benefits. However, compared with readily recyclable materials (e.g., paper, metals, etc.), recycling/composting biodegradable MSW presents a great challenge to furthering the promotion of waste recycling. This review provides a systematic analysis of organic waste sorting and recycling/composting practices in several countries: the UK, US, Japan, and China. Compared to the great efforts that have been made in developed countries for the promotion of waste composting, much less has been achieved in developing countries. For example, the MSW composting rate in China decreased from 10% to less than 2% in the past 15 years, and similar trends may exist in other developing countries. Therefore, it is essential to identify the barriers that impede waste composting and predict developing trends. This article emphasizes environmental challenges (i.e., odor, bioaerosols, and heavy metals), focusing on their generation and control strategies, in an effort to identify barriers hindering MSW composting. Successful practices in several European countries suggest that source-separated composting presents many advantages over mechanical-separated composting. This may partially be ascribed to the fact that source separation of organic waste can prevent contact with heavy metal-bearing items, resulting in the production of highquality compost. Mixed collection MSW normally contains significantly higher concentrations of heavy metals, which could affect the marketing of composting products. Moreover, source separation of organic waste can minimize waste pretreatment operations, leading to lower bioaerosol and malodor generation during composting. Implementing source separation of MSW in more countries would increase the amount of organic waste available for composting. In addition, attention should focus on secondary pollutant production for proper composting management. Finally, setting standards for end product quality control is highly recommended for controlling both marketing and environmental risks.

show abstract

Section: Tablementioning

confidence: 99%

Section: Tablementioning

confidence: 99%

Section: Referencementioning

confidence: 99%

See 1 more Smart Citation

Environmental challenges impeding the composting of biodegradable municipal solid waste: A critical review

Wei

Shi

et al. 2017

Resources, Conservation and Recycling

245

View full text Add to dashboard Cite

show abstract

“…Hort et al (2012) declara que el tiempo de residencia de diseño oscila entre 30 segundos y 60 segundos, por ende para el diseño del biofiltro de la presente investigación se considera 60 segundos como el tiempo de residencia de diseño, por otro lado, Villen (2012) menciona la necesidad de considerar un volumen de seguridad comprendido entre el 10% y 30%. El caudal de diseño fue obtenido a partir de los monitoreos realizados (Tabla 2).…”

Section: Determinación De La Concentración De áCido Sulfhídrico (H2s)unclassified

“…De las cuales la biofiltracion es la más empleada y el compost es el medio filtrante recomendado (medio de soporte para los microorganismos), altamente eficientes sin requerir de inoculación de microorganismos y control de temperatura, además, su periodo de aclimatación es muy corto, tiempo comprendido entre 14 y 18 días Hort et al, 2012). Es un proceso que emplea microorganismos que crecen inmovilizados en un medio de soporte orgánico, el cual viene a ser el soporte para los microorganismos y provee de nutrientes para su crecimiento.…”

unclassified

Remoción de sulfuro de hidrogeno (h2s) contenido en el biogás, generado por un reactor anaerobio tipo uasb– diseño factorial 32.

Serpa

Chamorro²

2018

riu

View full text Add to dashboard Cite

Remoción de sulfuro de hidrogeno (h2s) contenido en el biogás, generado por un reactor anaerobio tipo uasb-diseño factorial 3 2 .Removal of hydrogen sulphide (h2s) contained in the biogas, generated by an anaerobic reactor type uasb-factorial design 3 2Cerrón Serpa Víctor; Matos Chamorro Alfredo EP Ingeniería de Alimentos, Universidad Peruana Unión ResumenEl objetivo de esta investigación fue la de determinar la eficiencia de un biofiltro para remover ácido sulfhídrico (H2S) contenidos en el biogás, generado por un reactor anaerobio tipo UASB para lo cual se evaluó el efecto de dos factores: Concentración de ácido sulfhídrico (41 -90 ppm, 91 -140 ppm y 141 -190 ppm) y el tiempo de residencia (10.80 s, 27 s, 43.20 s) en relación a la eficiencia de remoción (%). El diseño experimental utilizado fue el diseño factorial 3 2 más cuatro puntos centrales. El factor más significativo fue el tiempo de residencia (p=0.021943) y la mayor eficiencia de remoción de ácido sulfhídrico obtenida fue de 100% al operar el biofiltro a un mayor tiempo de residencia (43.20 s), además, se determinó que la concentración de sulfuro de hidrogeno no tuvo efecto significativo sobre la eficiencia de remoción.Palabras Clave: Eficiencia de remoción, tiempo de residencia, ácido sulfhídrico, concentración de H2S, biogás. AbstractThe objective of this research was to determine the efficiency of a biofilter to remove hydrogen sulfide (H2S) content in the biogas, generated by an anaerobic reactor UASB for which the effect of two factors were evaluated: concentration of hydrogen sulfide (41 -90 ppm, 91-140 ppm and 141-190 ppm) and residence time (10.80 s, 27 s, 43.20 s) in relation to the removal efficiency (%). The experimental design was a factorial design 3 2 and four central points. The most significant factor was the residence time (p = 0.021943) and the highest removal efficiency of hydrogen sulfide obtained was 100% when the biofilter was operating in a longer residence time (43.20 s) also was determined that the concentration hydrogen sulfide had no significant effect on the removal efficiency.

show abstract

Odor, Air Quality, and Well-Being: Understanding the Urban Smellscape Using Crowd-sourced Science, Monitoring, and Modeling

Bhandari

Monticelli

Ramkairsingh

et al. 2022

Preprint

View full text Add to dashboard Cite

Odor exposure can adversely impact health and quality of life. It is challenging to study odors and their effects due to variability in individual sensitivity and perception, atmospheric physico-chemical processes, and emissions of mixtures of odorous contaminants. Here, we conduct quantitative and qualitative analyses of a 12-month data set from a web application collecting crowd-sourced odor reports, including spatiotemporal information, odor and self-reported impacts description (OSAC: odors, symptoms, actions in response, and potential causes), and demographics, in Vancouver, Canada. Spatiotemporal patterns highlight the influence of persistent sources (e.g., waste management) and transient events (e.g., accidents). Multiple linear regression models suggest that meteorological ventilation and air pollutants account for 60% of the variance in daily odor report counts. Users report diverse OSAC with strong seasonality and spatial variability. Reported symptoms, ranging from neurological to emotion-and mood-related, highlight the complexity of odor-related well-being impacts. Odors can trigger maladaptive behavior, where individuals are exposed to other environmental stressors (e.g., heat stress) or engage in risky behaviors to avoid or cope with odor impacts. Results from this project provide evidence that human-centered approaches can enrich understanding of the impacts of odorous emissions on health and well-being.

show abstract

A comparative study of two composts as filter media for the removal of gaseous reduced sulfur compounds (RSCs) by biofiltration: Application at industrial scale

Cited by 21 publications

References 22 publications

Environmental challenges impeding the composting of biodegradable municipal solid waste: A critical review

Environmental challenges impeding the composting of biodegradable municipal solid waste: A critical review

Remoción de sulfuro de hidrogeno (h2s) contenido en el biogás, generado por un reactor anaerobio tipo uasb– diseño factorial 32.

Odor, Air Quality, and Well-Being: Understanding the Urban Smellscape Using Crowd-sourced Science, Monitoring, and Modeling

Contact Info

Product

Resources

About