Evaluation of disinfection by-products (DBPs) formation
DBP formation potential tests were conducted to evaluate the maximum DBP formation ability of the water samples. Free chlorine was used as the disinfectant in DBPFP tests. The oxidation of ammonium in the effluents by chlorine will generate chloramine, which would affect DBPs formation.
Comparison of Disinfection By-Product Formation and
During BC, the DBPs were formed in higher concentration, with the exception of one waterwork having elevated bromide content in the raw water. Bromine substitution factors (BSFs) were significantly higher during disinfection than BC in both field and laboratory experiments.
Evaluation of disinfection by-products (DBPs) formation
Trichloromethane (TCM) was the dominant product among all DBPs detected. The anammox euent has a low specic TCM formation potential of 0.778 mmol/mmol C and a trichloronitromethane (TCNM) formation potential of 0.0725 mmol/mmol C, leading to a TCM and TCNM formation potential ratio of 10.7.
"Assessing the Impact of Chlorine Residual on Trihalomethane
A disinfection byproduct (DBP) formation potential (FP) test can be used to indirectly measure the concentration of DBP precursors in natural waters, permitting assessment of various DBP-related treatment processes and control strategies.
DBP Formation Potential - Real Tech Water
DBP Formation Potential - Real Tech Water DBP AND FORMATION POTENTIAL MONITORING Chemical disinfection can cause the formation of harmful byproducts when disinfectants like chlorine react with naturally occurring compounds such as organic matter in water.
- What is DBP formation potential (dbpfp)?
- DBP formation potential (DBPFPs) experiments are designed to maximize reactions between the precursors and disinfectant (e.g., Krasner et al., 2008). With knowledge of trends between precursors and DBPFP, unit processes capable of reducing more important precursors can be employed to reduce overall DBP levels in treated water.
- What are DBP precursors?
- DBP precursors are defined as a mixture of organic and inorganic compounds that can form DBPs under some level of disinfection. DBP formation potential (DBPFPs) experiments are designed to maximize reactions between the precursors and disinfectant (e.g., Krasner et al., 2008).
- How do DBPs form?
- Unlike most other drinking water contaminants, DBPs form from disinfectant application within the plant, as a result of the final drinking water treatment process (disinfection) and continue to form throughout the distribution system, such that control strategies necessarily focus on minimizing their formation.
- Which DBP class is more pronounced during disinfection?
- The bromine substitution was significantly higher for each DBP class at waterwork I, where the Br − concentration of the raw water was the highest (Table 3). The formation of the brominated DBPs is more pronounced during disinfection, resulting in higher BSF values, than during BC.
- Does initial BR level affect DBP concentration?
- The effect of initial Br − level on the concentration of DBPs was similar in the BC and disinfection experiments. The impact of chlorine dosage is different: whereas in disinfection experiments residual free chlorine is the limiting factor of the DBP formation, during BC it has practically no effect.
- Are organic DBPs harmful to water supply operators?
- Due to the harmful health effect of organic DBPs, it is important for water supply operators to be aware of the characteristics of each process for appropriate control of by-products. At BC, the formation of DBPs is limited by contact time and DOC concentration of raw water. Chlorine dosage has only a limited impact on the produced DBPs.
