Toxicity of nonylphenol diethoxylate in lab-scale anaerobic digesters

Bozkurt, Hande
Sanin, Faika Dilek
Nonylphenol compounds have high commercial, industrial and domestic uses owing to their surface active properties. In addition to their toxic, carcinogenic and persistent characteristics; they have drawn the attention of scientists lately due to their endocrine disrupting properties. Their widespread use and disposal cause them to enter wastewater treatment systems at high concentrations. Since they are highly persistent and hydrophobic, they accumulate mostly on sludge.


Seasonal monıtorıng of nonylphenol compounds ın sewage sludge
Kara Murdoch, Fadime; Sanin, Faika Dilek (null; 2015-08-27)
Nonylphenol compounds (NPnEO) enter wastewater treatment systems from a number of different sources, including domestic and industrial. These compounds start losing their ethoxy groups during treatment processes and eventually form nonylphenol diethoxylate (NP2EO), nonylphenol monoethoxylate (NP1EO) and nonylphenol (NP) as final products with higher toxic properties. Even though they are removed during wastewater treatment to a certain extent, an important fraction heavily concentrate on solids due to their...
Fate and degradation kinetics of nonylphenol compounds in aerobic batch digesters
Omeroglu, Seçil; Sanin, Faika Dilek (2014-11-01)
Nonylphenol (NP) compounds are toxic and persistent chemicals that are not fully degraded either in natural or engineered systems. Current knowledge indicates that these compounds concentrate in sewage sludge. Therefore, investigating the degradation patterns and types of metabolites formed during sludge treatment are important for land application of sewage sludge. Unfortunately, the information on the fate of nonylphenol compounds in sludge treatment is very limited. This study aims to investigate the bio...
Blood compatibility of polymers derived from natural materials
Fedel, Mariangela; Endoğan Tanır, Tuğba; Hasırcı, Nesrin; Maniglio, Devid; Morelli, Andrea; Chiellini, Federica; Motta, Antonella (2012-07-01)
Several polymers derived from natural materials are effective for tissue engineering or drug delivery applications, due to specific properties, such as biocompatibility, biodegradability, and structural activity. Their blood compatibility needs to be carefully evaluated to avoid thrombosis and other material-related adverse events in the hematic environment. We compared the surface properties and blood compatibility of protein and polysaccharide polymers, including fibroin, gelatin, and chitosan. Both fibro...
Simulation of equal channel angular pressing applied to produce structures with ultrafine-sized grains
Karpuz, Pinar; Şimşir, Caner; Gür, Cemil Hakan (Inderscience Publishers, 2009-01-01)
Severe plastic deformation methods are of great interest in industrial forming applications, as they give rise to significant refinement in microstructures and improvements in mechanical and physical properties. In the 'equal channel angular pressing (ECAP)', which is the most common method for production of ultrafine grained bulk samples, very high plastic strains are introduced into the bulk material without any change in cross section. In this study, the plastic deformation behaviour of the materials sub...
Properties of blended cements with thermally activated kaolin
Arikan, Metin; Sobolev, Konstantin; Ertuen, Tomris; Yeginobali, Asim; Turker, Pelin (Elsevier BV, 2009-01-01)
Kaolin, one of the materials of major importance for the ceramic and paper industry, is also used in the construction industry as a raw material for the production of white cement clinker and, in the form of metakaolin, as an artificial pozzolanic additive for concrete. Metakaolin is a vital component of high-performance and architectural concrete; however, its application in regular concrete is very limited due to relatively high production costs. This report evaluates the performance of a low-cost metakao...
Citation Formats
H. Bozkurt and F. D. Sanin, “Toxicity of nonylphenol diethoxylate in lab-scale anaerobic digesters,” CHEMOSPHERE, pp. 69–75, 2014, Accessed: 00, 2020. [Online]. Available: