Loss of organic chemicals in soil: Pure compound treatability studies

Abstract

Comprehensive screening data on the treatability of 32 organic chemicals in soil were developed. Of the evaluated chemicals, 22 were phenolic compounds. Aerobic batch laboratory microcosm experiments were conducted using two soils: an acidic clay soil with <1% organic matter and a slightly basic sandy loam soil containing 3.25% organic matter. Loss rates were determined for the 32 chemicals with each soil and were higher in the basic soil. The loss rates were compared with chemical structure. Chlorophenols with chlorine substituted in the meta-position had greater half-lives and lower loss rates. Chemicals with a nitro group substituted in the phenol ring appeared to have a lower loss rate.

Iron index as an organic matter decay intensity indicator in a shallow groundwater system highly contaminated with phenol (case study in northern Poland)

“…6). Degradation of phenol in soil and in groundwater is strongly diversified due to the prevailing oxidation and reduction conditions (Loehr and Matthews 1992;Sinsabaugh 2010;van Schie and Young 2007). The half-life t 1/2 is on average up to 20 days (Vaishnav and Babeu 1987;Lerner et al 2005).…”