1. Size and XAD fractionations of trihalomethane precursors from soils
- Author
-
Richard S. Breuer, Alex T. Chow, Fengmao Guo, and Suduan Gao
- Subjects
Environmental Engineering ,Health, Toxicology and Mutagenesis ,complex mixtures ,California ,Water Purification ,Electrolytes ,Water Supply ,Dissolved organic carbon ,Soil Pollutants ,Environmental Chemistry ,Organic matter ,Leaching (agriculture) ,chemistry.chemical_classification ,Total organic carbon ,Soil organic matter ,Public Health, Environmental and Occupational Health ,Environmental engineering ,General Medicine ,General Chemistry ,Soil carbon ,Pollution ,Carbon ,Resins, Synthetic ,Solubility ,chemistry ,Loam ,Environmental chemistry ,Soil water ,Trihalomethanes - Abstract
Soil organic matter is an important source of allochthonous dissolved organic matter inputs to the Sacramento-San Joaquin Delta waterways, which is a drinking water source for 22 million people in California, USA. Knowledge of trihalomethane (THM) formation potential of soil-derived organic carbon is important for developing effective strategies for organic carbon removal in drinking water treatment. In this study, soil organic carbon was extracted with electrolytes (deionized H2O and Na- or Ca-based electrolytes) of electrical conductivity bracketing those found in Delta leaching and runoff conditions. The extracts were physically and chemically separated into different fractions: colloidal organic carbon (0.45-0.1 microm), fine colloidal organic carbon (0.1-0.025 microm), and dissolved organic carbon (DOC) (
- Published
- 2006