Evaluation of the use of solar irradiation for the decontamination of soils containing wood treating wastes

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Journal of the Air and Waste Management Association; (United States)

DOI:https://doi.org/10.1080/10473289.1990.10466780· OSTI ID:5412599

Dupont, R R; McLean, J E; Hoff, R H; Moore, W M ^[1]

---

1. Utah State Univ., Logan (USA)

Laboratory evaluation of the efficacy of soil phase photodegradation of recalcitrant hazardous organic components of wood treating wastes is described. The photodecomposition of anthracene, biphenyl, 9H-carbazole, m-cresol, dibenzofuran, fluorene, pentachlorophenol, phenanthrene, pyrene and quinoline under UV and visible light was monitored over a 50-day reaction period in three test soils. Methylene blue, riboflavin, hydrogen peroxide, peat moss and diethylamine soil amendments were evaluated as to their effect on the enhancement of compound photoreaction rates in the test soil systems. Dark control samples monitored over the entire study period were utilized to quantify non-photo mediated reaction losses. Compounds losses in both the dark control and irradiated samples were found to follow first order kinetics, allowing the calculation of first order photodegradation reaction rate constants for each test soil/compound combination. Degradation due to photochemical activity was observed for all test compounds, with compound photolytic half-lives ranging from 7 to approximately 180 days. None of the soil amendments were found to improve soil phase photodegradation, although photosensitization by anthracene was shown to significantly enhance the rate of photodegradation of the other test compounds. Soil type, and its characteristic of internal reflectance, proved to be the most significant factor affecting compound degradation rates suggesting the necessity for site specific assessments of soil phase photodegradation potential.

• OSTI ID: 5412599
• Journal Information: Journal of the Air and Waste Management Association; (United States), Journal Name: Journal of the Air and Waste Management Association; (United States) Vol. 9; ISSN JAWAE; ISSN 1047-3289
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540220* -- Environment
Terrestrial-- Chemicals Monitoring & Transport-- (1990-)
ANTHRACENE
AROMATICS
AZAARENES
AZINES
AZOLES
BENZOFURANS
BIPHENYL
CARBAZOLES
CHEMICAL REACTIONS
CHLORINATED AROMATIC HYDROCARBONS
CLEANING
CONDENSED AROMATICS
CRESOLS
DECOMPOSITION
DECONTAMINATION
EVALUATION
FLUORENE
FURANS
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROXY COMPOUNDS
LAND RECLAMATION
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHENANTHRENE
PHENOLS
PHOTOCHEMICAL REACTIONS
PYRENE
PYRIDINES
QUINOLINES
RADIATIONS
SOILS
SOLAR RADIATION
STELLAR RADIATION
USES