Publications by authors named "Thien D Do"
Inorganic chloramines are commonly used drinking water disinfectants intended to safeguard public health and curb regulated disinfection by-product formation. However, inorganic chloramines themselves produce by-products that are poorly characterized. We report chloronitramide anion (Cl-N-NO) as a previously unidentified end product of inorganic chloramine decomposition.
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- - Nitrite (NO) production is an important indicator of nitrification events in chloraminated drinking water systems, typically measured using methods like ion chromatography or colorimetric techniques.
- - The authors developed a versatile chemometric model (CM) for quantifying NO that overcomes challenges posed by different types of natural organic matter (NOM) present in various water sources.
- - The new CM, validated with laboratory tests and field samples, demonstrated high accuracy and sensitivity, effectively simulating NO levels in environments experiencing nitrification, making it useful for monitoring biological ammonia oxidation.
Measurements of disinfection byproduct (DBP) organic precursor concentrations (OPCs) are crucial to assess and improve DBP control processes. Typically, formation potential tests - specified in Standard Methods (SM) 5710-B/D - are used to measure OPCs. Here, we highlight several limitations of this protocol for dihaloacetonitriles and trihalomethanes and validate a novel Alternative Method (AM).
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