OMW spillage control tool based on tracking p-Coumaric acid degradation by HPLC

Abstract

Olive mill wastewater (OMW) is a major watercourse pollutant agent with a high concentration of phenolic compounds. It is estimated that 30 million OMW m are released into rivers every year. Protecting the health of these courses against the uncontrolled discharges implies establishing an adequate legislation, where spillage control tools play a fundamental role. In this paper, a new tool for OMW spillage control is discussed. It is based on the use of a RP-HPLC-UV protocol to track p-Coumaric acid (pCA), a characteristic OMW phenolic compound, and its derivative compounds through their chemical oxidation and biological anaerobic degradation. Laboratory assays and real-life experiences allowed to determine degradation routes and apparition times for every pCA derivative, making it possible to detect an OMW spill and assess its age. Moreover, this RP-HPLC-UV introduces solid advantages over previous detection procedures, namely, quicker response times and smaller costs than HPLC methods and superior specificity than colorimetric methods. Finally, this tool was put to test in an actual OMW-polluted watercourse. In all scenarios, the tool demonstrated solid reliability.

Biotransformation of green tea (Camellia sinensis) by wine yeast Saccharomyces cerevisiae

“…According to Mukai, Masaki, Fujii, Kawamukai, and Iefuji (), p ‐coumaric acid could be converted into 4‐vinyl phenol via decarboxylation by S. cerevisiae . Although 4‐vinyl phenol was not detected in this study due to its high reactivity and low level, it could also be decomposed into phenol (Table ) (Morón, Pozo‐Morales, Benito Mora, Garvi, & Lebrato, ).…”

Scale-Up Operations for Biogas Production: Analysis on Critical Factors Governing Large-Scale Operations

“…Besides, the digester operation and design is of great importance and should be thoroughly assessed to understand the ideal settings for a digester. As one of the knowledge questions emphasizes, the conceptual model should distinguish scaling sizes to understand the most significant parameters in upscaling (Wen-Wei and Han-Qing 2016;Chen 2017b;Macedonio and Drioli 2017;Moron et al 2018).…”

Bioparticles consisting of olive mill wastewater (OMW)-adapted bacteria and OMW-polluted soil as carrier– An application in an anaerobic fluidized bed bioreactor

“…pCA was chosen in order to be tracked as a pollution indicator and to check the evolution of the studied treatment without interferences [12].…”

“…It must be considered that supernatant liquids of these soils are populated, although in less amount, by adapted biomass as well. This is a common situation in watercourses affected by industrial organic discharges [12].…”