the application of neural networks to model a laboratory scale inverse fluidized bed reactor has been studied. a radial basis function neural network has been successfully employed for the modeling of the inverse fluidized bed reactor. in the proposed model, the trained neural network represents the kinetics of biological decomposition of organic matters in the reactor. the neural network has b...

The microbial fuel cell (MFC) was applied to produce electricity using sewage sludge as a fuel. The extracellular biological organic matter (EBOM) of sludge, before and after MFC operation, was extracted using ammonium hydroxide whose hydrophobicity was characterized with XAD resin fractionation technique. Following MFC operation, the hydrophilic fraction (HPI) of EBOM was enriched (48.0%-64.5%...

De hoeveelheid opgeloste organische stoffen (Dissolved Organic Matter DOM) in oppervlaktewater, en de samenstelling ervan, is een belangrijke graadmeter van de fysisch-chemische waterkwaliteit. Dit proefschrift beschrijft een drietal mogelijkheden om de concentratie van gekleurde opgeloste organische stoffen (Coloured Dissolved Organic Matter CDOM) in natuurlijke Nederlandse oppervlaktewateren ...

Exact estimates of soil clay (<2 μm) and silt (2-20 μm) contents are crucial as these size fractions impact key soil functions, and as pedotransfer concepts based on clay and silt contents are becoming increasingly abundant. We examined the effect of removing soil organic matter (SOM) by H2O2 before soil dispersion and determination of clay and silt. Soil samples with gradients in SOM were retr...

Developing economic and sustainable synthetic strategies for metal-organic frameworks (MOFs) is imperative for promoting MOF materials into large scale industrial use. Very recently, an alternative strategy for MOF synthesis by using solvent-insoluble "solid matters" as cation reservoirs and/or templates has been developed to accomplish this goal, in which the solid matters often refer to metal...

In the present study, continuous adsorption experiments were carried out in an adsorption column to survey the efficiency of the carbon nanotubes (CNTs) for removal of natural organic matters (NOMs) from aqueous solution. Parameters such as mass of CNTs, initial NOMs concentration were evaluated and also the breakthrough curves were obtained. Experiments performed with various initial NOMs conc...

Acid mine drainage (AMD) is one of the problems arising from mining activities. formed due to oxidation sulfide minerals such as pyrite (FeS2) by water and oxygen. Alternative management AMD in a sustainable eco-friendly way constructed wetland. Therefore, this study was conducted determine type composition potential organic matter that can improve quality. The consisted three stages: screening...

Transport and deposition characteristics of natural organic matter (NOM) are systematically investigated using flow field-flow fractionation (Fl-FFF) at various chemical and physical conditions. Humic acid (HA) was chosen as model organic foulants. Prior to Fl-FFF analysis, HA was fractionated by membranes with different molecular weight cut-offs. To elucidate physicochemical factors affecting ...

Tetracyclines (TCs) discharged from livestock wastewater have aroused public concerns due to their pharmacological threats to ecosystems and human health. As an important medium in the wastewater, suspended organic matters (SOMs) play vital roles in antibiotics transport and degradation. However, limited information has been reported in the relevant literature. This study investigated TCs sorpt...

The surface microlayer (SML) is the dividing border between air and water surface. It has physical, chemical biological properties which are distinctly from subsurface layer (SSL) waters. As its unique place air- water, SML remained in a distinct research corner. Surface characterized by capacity to accumulate of organic compounds specially proteins, carbohydrates lipid. presence such as energy...