Aquatic photodegradation of polychlorinated dibenzofurans: rates and photoproduct analysis

Article Abstract:

The rates of aqueous photolysis of two toxic polychlorinated dibenzofuran (PCDF) congeners, 2378-T4 CDF and 23478-P5CDF, were determined using a xenon light source and under sunlight conditions. The results showed that both PCDFs were degraded at high rates in lake water under high sunlight intensities, but degradation slowed down under midsummer sunlight conditions. Direct aqueous photolysis of PCDFs resulted in the formation of polar and nonpolar photoproducts.

Analysis, Photochemical research

---

Thermodynamic study on the reduction of the polychlorinated dibenzo-p-dioxins and dibenzofurans in incinerator exhausts

Article Abstract:

Thermodynamic research shows that the use of CaO, Na2O-SiO2, or 2Na2O-SiO2 will promote the dechlorination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in incinerator exhausts. Butane or butene will also foster the reaction. The decomposition will not take place at temperatures below 1100 K. The methods for reduction of PCDDs and PCDFs in the waste gases from municipal incinerators is discussed.

Usage, Environmental aspects, Incinerators, Waste gases, Thermodynamic potentials

---

Patterns and sources of polychlorinated dibenzo-p-dioxins and dibenzofurans in sediments from the Venice Lagoon, Italy

Article Abstract:

Italy's Venice Lagoon is moderately contaminated with dibenzofurans and polychlorinated dibenzo-p-dioxins, which arrive from various pollutant sources. Such sources include diesel and gasoline engine emissions, and chemical manufacturing. The level of contamination of Venice Lagoon was found to be significantly higher than the levels of contamination in the Adriatic Sea, with which the lagoon is part of.

Research and Development in the Physical, Engineering, and Life Sciences, Water Pollution Control R&D, Water pollution, Water pollution research, Organochlorine compounds, Organic chlorine compounds

Similar abstracts:

• Abstracts: Starch degradation. The role of root exudates in rhizosphere interactions with plants and other organisms. Understanding the functions of plant disease resistance proteins
• Abstracts: Adsorption/desorption equilibria and conversion to polychlorinated dibenzo-p-dioxins. Formation of polychlorinated dioxins, furans, benzenes, and phenols in the post-combustion region of a heterogeneous combustor: effect of bed material and post-combustion temperature
• Abstracts: Application of the mobile order theory to the prediction of aqueous solubility of chlorinated benzenes and biphenyls
• Abstracts: Influence of harbor contamination on the level and composition of polychlorinated biphenyls in produce in greater New Bedford, Massachusetts
• Abstracts: The impact of turbulent mixing on the oxidation of a chlorinated hydrocarbon. Some observations on times to equilibrium for semivolatile polycyclic aromatic hydrocarbons

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.