Occurrence, concentration, and distribution of 38 organic micropollutants in the filter material of 12 stormwater bioretention facilities was written by Furen, Robert;Flanagan, Kelsey;Winston, Ryan J.;Tirpak, R. Andrew;Dorsey, Jay D.;Viklander, Maria;Blecken, Godecke-Tobias. And the article was included in Science of the Total Environment in 2022.Recommanded Product: Dicyclohexyl phthalate This article mentions the following:
The increased use of bioretention facilities as a low impact development measure for treating stormwater runoff underscores the need to further understand their long-term function. Eventually, bioretention filter media must be (partly) replaced and disposed of at the end of its functional lifespan. While there are several studies of metal accumulation and distributions in bioretention media, less is known about organic pollutant pathways and accumulation in these filters. The present study considers the occurrence and accumulation of 16 polycyclic aromatic hydrocarbons, 7 polychlorinated biphenyls, 13 phthalates, and two alkylphenols throughout 12 older bioretention facilities (7-13 years old) used for stormwater treatment in Michigan and Ohio, USA. These pollutant groups appear to behave similarly, with greater instances of detection and higher concentrations in the upper media layers which decrease with increased depth from the surface. The patterns of detection and concentration in the filter material may be explained by characteristics of the pollutants, such as mol. structures and solubility that affect the removal of the organic pollutants by the filter material. There is also a large variation in concentration magnitudes between the bioretention sites, most likely due to differences in pollutant sources, contributing catchment size and/or land uses. In the experiment, the researchers used many compounds, for example, Dicyclohexyl phthalate (cas: 84-61-7Recommanded Product: Dicyclohexyl phthalate).
Dicyclohexyl phthalate (cas: 84-61-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Recommanded Product: Dicyclohexyl phthalate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics