Evaluation of disinfection by-products (DBPs) formation potential
2.4 DBP formation potential (DBPFP) tests 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.
Drivers of variability in disinfection by-product formation potential
The most significant variable affecting DBP formation was season, where carbonaceous DBP FP was higher in autumn and summer than in winter. TTHM FP ranged from a 160% median increase in the river upstream of the reservoirs, to a 31% median increase in the last reservoir of the system, from winter to summer.
Characterization of organic matter by HRMS in surface
Direct measurements of target DBP are undoubtedly useful. However, the prediction of the DBP formation potential (FP) is equally important, particularly in those cases when adjusting the disinfection parameters is viable. In this regard, the characterization of dissolved organic matter (DOM) has proved to be a promising tool.
Formation of disinfection by-products after pre
DBP formation potential. The DBP formation potential experiments were conduced in capped amber glass bottles at room temperature (22 ± 1 °C) in the dark. Chlorine was dosed to evaluate the formation potential of THMs, HANs, CH and HNMs and pre-formed monochloramine was dosed to evaluate the formation potential of NDMA.
Challenges in Reusing Produced Water - Society of Petroleum Engineers
In addition, potential formation of disinfection byproducts (DBPs) needs to be evaluated. Existing studies on DBP formation were mostly performed using surface water, groundwater, or reclaimed domestic wastewater. The DBP formation potential of treated produced water has not been investigated.
- What are halogenated DBPs?
- Due to the global water pollution, precursors of the DBPs (esp. halogenated DBPs) in the polluted source waters are generally a mixture of autochthonous and allochthonous compounds, such as microorganism-associated ( e.g. algae and bacteria) products, wastewater effluent organic matters, amino acids and proteinaceous compounds.
- Are haloacetic acids a surrogate for carbonaceous DBP formation?
- Trihalomethanes (THMs) and haloacetic acids (HAAs), as key regulated classes, were extensively investigated and exhibited strong, recurrent relationships with ubiquitous humic/fulvic-like FDOM components, highlighting their potential as surrogates for carbonaceous DBP formation.
- Does BAC filtration increase brominated C-DBPs and N-DBPs?
- However, BAC filtration somewhat resulted in the increased formation of brominated C-DBPs and N-DBPs due to the increase of bromide/DOC and bromide/DON.
- Are halogenated DBPs toxic?
- The I-DBPs failed to cause the significant geno- and cyto-toxic risks, thereby more attention should be given to HANs, which showed the significant higher integrated toxic risk than other halogenated DBPs.
- How many organohalide DBPs are regulated?
- (1) Consequently, nine organohalide DBPs including four trihalomethanes (THM4) and five haloacetic acids (HAA5) are regulated by drinking water authorities in the European Union (EU) (2) and United States (US).
