The widely-used surfactant Nonylphenol Ethoxylate (NPEO) produces endocrine-disrupting compounds during biodegradation, with these byproducts being more harmful than untreated NPEO. This study investigates the effectiveness of a Fluidized Bed Reactor (FBR) in reducing the production of 4-Nonylphenol (4-NP) during the biodegradation of NPEO. Two identical FBR filled with sand were used to assess the NPEO degradation and to enhance the microbial consortia capable of breaking down the complex byproducts, ethanol and fumarate were introduced as co-substrates.
View Article and Find Full Text PDFJ Environ Manage
December 2023
This research aimed at evaluating optimal conditions to obtain value-added metabolites, such as bio-CH, by co-digesting swine manure and food waste diluted in domestic sewage. The assays were carried out in batches using the statistical methods of Rotational Central Composite Design (RCCD) and Surface Response to evaluate the ranges of food waste (1.30-9.
View Article and Find Full Text PDFPreeclampsia (PE) is the most common complication of pregnancy. PE is a multisystem disorder that can result in maternal morbidity and mortality. A severe complication of PE is the HELLP syndrome.
View Article and Find Full Text PDFObjective: To determine the initial management and in-hospital mortality of patients with acute coronary syndrome who attended referral hospitals in Paraguay.
Method: Observational, multicenter study, in patients over 18 years with a confirmed diagnosis of acute coronary syndrome.
Results: 780 patients were included from May 2015 to February 2016; the mean age was 64.