Removal of turbidity, phytoplankton, and zooplankton from ballast water with waste-tire-made crumb rubber filtration was evaluated in this study. The influences of various design, operational, and water quality parameters (filter depth, media size, filtration rate, temperature, turbidity, running time, etc.) on filtration performance were investigated. Statistical approaches were used to develo...

Historically, heterotrophic plate counts are enumerated using a pour plate method, whereby plates are read manually. This analysis is important to evaluate the maintenance of water disinfection in a reticulation system. Advances in media and technology have made it possible to do this evaluation using defined substrate media and enumeration is performed by means of instrumentation using softwar...

In all living organisms, all reactions involved in peptides and proteins synthesis proceeds exceedingly efficiently inside the cells in aqueous solution. An approach to efficient preparation of peptides in aqueous media is of great importance because the safe disposal of organic solvents is a vital environmental issue, and even more essential, the aqueous milieu is crucial to preserve the confo...

AIMS To develop an anti-microbial filter media using an attached quaternary ammonium compound (QAC) and evaluate its performance under conditions relevant to household drinking water treatment in developing countries. METHODS AND RESULTS Silica sand was coated with dimethyloctadecyl [3-(trimethoxysilyl) propyl] ammonium chloride via covalent silane chemistry. Filter columns packed with coated...

Photon dose calculation algorithms (such as the pencil beam and collapsed cone, CC) model the attenuation of a primary photon beam in media other than water, by using pathlength scaling based on the relative mass density of the media to water. In this study, we assess if differences in the electron density between the water and media, with different atomic composition, can influence the accurac...

Calli of soybean [Glycine max cv. Pershing] were grown on "MS" media supplemented with different levels of KCl and NaH2PO4 for 45 days. The effects of salt stress were evaluated on the production and accumulation of proline and growth content of calli. Proline content increased as growth occurred. The maximum amount of proline and the highest content of growth were observed in calli grown on me...

Available literature on the spectral transmittance of the eye media in the infrared (IR) is insufficiently accurate to estimate the deposited doses, e.g. in view of light damage risks. Analysis of the data of Boettner and Wolter [Investigative Ophthalmology and Visual Science, 1, 776-783 (1962)] for cornea, anterior chamber, lens and vitreous separately, shows that they can be explained on the ...

The objective of the present study was to assess the growth and the recovery of Salmonella (S.) Enteritidis SE86 in different diluents, culture media and using different plating methods after the exposure to 200 mg/kg sodium dichloroisocyanurate (NaDCC). Before and after NaDCC exposure, SE86 was cultured at 30 °C and 7 °C in the following diluents: Peptone water (P), Saline solution (SaS), Pept...

A new media, iron coated pottery granules (ICPG) has been developed for As removal from drinking water. ICPG is a solid phase media that produces a stable Fe-Si surface complex for arsenic adsorption. Scanning electron microscopy (SEM) was used to document the physical attributes (grain size, pore size and distribution, surface roughness) of the ICPG media. Several advantages of the ICPG media ...