Identification and removal of polycyclic aromatic hydrocarbons in wastewater treatment processes from coke production plants was written by Zhang, Wanhui;Wei, Chaohai;Yan, Bo;Feng, Chunhua;Zhao, Guobao;Lin, Chong;Yuan, Mengyang;Wu, Chaofei;Ren, Yuan;Hu, Yun. And the article was included in Environmental Science and Pollution Research in 2013.Related Products of 607-32-9 This article mentions the following:
Identification and removal of polycyclic aromatic hydrocarbons (PAHs) were investigated at two coke plants located in Shaoguan, Guangdong Province of China. Samples of raw coking wastewaters and wastewaters from subunits of a coke production plant were analyzed using gas chromatog.-mass spectrometry (GC/MS) to provide a detailed chem. characterization of PAHs. The identification and characterization of PAH isomers was based on a pos. match of mass spectral data of sample peaks with those for PAH isomers in mass spectra databases with electron impact ionization mass spectra and retention times of internal reference compounds In total, 270 PAH compounds including numerous nitrogen, oxygen, and sulfur heteroat. derivatives were pos. identified for the first time. Quant. anal. of target PAHs revealed that total PAH concentrations in coking wastewaters were in the range of 98.5卤8.9 to 216卤20.2 渭g/L, with 3-4-ring PAHs as dominant compounds Calculation of daily PAH output from four plant subunits indicated that PAHs in the coking wastewater came mainly from ammonia stripping wastewater. Coking wastewater treatment processes played an important role in removing PAHs in coking wastewater, successfully removing 92 % of the target compounds However, 69 weakly polar compounds, including PAH isomers, were still discharged in the final effluent, producing 8.8卤2.7 to 31.9卤6.8 g/day of PAHs with potential toxicity to environmental waters. The study of coking wastewater herein proposed can be used to better predict improvement of coke production facilities and treatment conditions according to the identification and removal of PAHs in the coke plant as well as to assess risks associated with continuous discharge of these contaminants to receiving waters. In the experiment, the researchers used many compounds, for example, 5-Nitroisoquinoline (cas: 607-32-9Related Products of 607-32-9).
5-Nitroisoquinoline (cas: 607-32-9) belongs to isoquinoline derivatives. Quinoline is a mancude organic heterobicyclic parent, an azaarene, an ortho-fused heteroarene and a member of isoquinolines. The Pomeranz鈥揊ritsch reaction provides a method for the preparation of isoquinoline. This reaction uses a benzaldehyde and aminoacetoaldehyde diethyl acetal, which in an acid medium react to form isoquinoline.Related Products of 607-32-9
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem