Treatability studies

Microcosms, mesocosms, and field trials

Ian Snape, Susan Ferguson, Mike C. Reynolds, James L Walworth

Research output: Chapter in Book/Report/Conference proceedingChapter

5 Citations (Scopus)

Abstract

Treatability assessments are used to identify limitations to the rate or endpoint of bioremediation for a specific soil-contaminant combination. For treatability studies, the degradation pathways for the contaminant are generally known (see Chapter 4, Section 4.2.1), but the limitations in a particular soil or at a specific site are less well understood. The tremendous utility of treatability studies is in evaluating practical treatment regimes prior to full-scale implementation. The goal is to demonstrate practicability, optimize treatment design, and provide information for project planning. Sometimes this is an essential proving step for clients or regulators because choice of treatment depends primarily on urgency of remediation and cost. The cost-time relationship for different treatment types is illustrated in Chapter 1, Figure 1.1. The ability to predict the rate of bioremediation progress for a treatment scheme is particularly important in cold regions where costs are higher and treatment times are longer than in temperate regions.In an effort to understand and improve the bioremediation process in cold regions, researchers have used treatability experiments to style="bullet">identify the presence or absence of microbial activity for a particular contaminant or group of contaminants;determine optimum requirements, such as temperature, nutrients, oxygen, and water, for bacteria and fungi to metabolize contaminants in the soil regime;examine the effects that natural cycles, such as freezing-thawing and wetting-drying, have on microbial activity and degradation rate;estimate achievable endpoints;predict and compare treatment times and costs.Treatability studies can involve in vitro microcosms with individual bacterial species or consortia from the soil incubated in liquid or slurry media, mesocosm studies with soils and natural microfauna, or field trials.

Original languageEnglish (US)
Title of host publicationBioremediation of Petroleum Hydrocarbons in Cold Regions
PublisherCambridge University Press
Pages125-153
Number of pages29
ISBN (Print)9780511535956, 9780521869706
DOIs
StatePublished - Jan 1 2008

Fingerprint

microcosm
pollutant
bioremediation
cold region
soil
cost
microbial activity
degradation
mesocosm
thawing
wetting
slurry
freezing
remediation
trial
fungus
oxygen
bacterium
liquid
nutrient

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Snape, I., Ferguson, S., Reynolds, M. C., & Walworth, J. L. (2008). Treatability studies: Microcosms, mesocosms, and field trials. In Bioremediation of Petroleum Hydrocarbons in Cold Regions (pp. 125-153). Cambridge University Press. https://doi.org/10.1017/CBO9780511535956.008

Treatability studies : Microcosms, mesocosms, and field trials. / Snape, Ian; Ferguson, Susan; Reynolds, Mike C.; Walworth, James L.

Bioremediation of Petroleum Hydrocarbons in Cold Regions. Cambridge University Press, 2008. p. 125-153.

Research output: Chapter in Book/Report/Conference proceedingChapter

Snape, I, Ferguson, S, Reynolds, MC & Walworth, JL 2008, Treatability studies: Microcosms, mesocosms, and field trials. in Bioremediation of Petroleum Hydrocarbons in Cold Regions. Cambridge University Press, pp. 125-153. https://doi.org/10.1017/CBO9780511535956.008
Snape I, Ferguson S, Reynolds MC, Walworth JL. Treatability studies: Microcosms, mesocosms, and field trials. In Bioremediation of Petroleum Hydrocarbons in Cold Regions. Cambridge University Press. 2008. p. 125-153 https://doi.org/10.1017/CBO9780511535956.008
Snape, Ian ; Ferguson, Susan ; Reynolds, Mike C. ; Walworth, James L. / Treatability studies : Microcosms, mesocosms, and field trials. Bioremediation of Petroleum Hydrocarbons in Cold Regions. Cambridge University Press, 2008. pp. 125-153
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