Science: Is It All We Expect It to Be?

This is the introduction to the Book Reviews and New Media Column.

Hospital Nurses and Research: Yes or No?

This is the introduction to the Book Reviews and New Media Column. The controversy being addressed is whether or not hospital-based nurses can do nursing research.

A World of Lost Connections

This is the introduction to the Book Reviews and New Media Column

Effects of divalent metal cations and inorganic anions on the transport of tetracycline in saturated porous media: column experiments and numerical simulations

Tetracycline is one of the most commonly used antibiotics in the world.

Effect of TSS Removal from Stormwater by Mixed Media Column on T-N, T-P, and Organic Material Removal

The water quality of a waterbody influenced by stormwater runoff was tested in a lab-scale setting by filtration. The filtration bed was packed with two or three types of media, sand, bottom ash (BA), and woodchips (WC), and tested with three hydraulic conductivities (HCs). Five pollutants—namely, total suspended solids (TSS): BOD, COD, T-N, and T-P, were analyzed and compared. The application of sand-bottom ash (S-BA) and bottom ash-sand (BA-S) media types showed the highest removal efficiencies for TSS, BOD, COD, T-N, and T-P, respectively. Among the five pollutants, TSS achieved the highest removal efficiency for any of the filter media, which was up to 93% for the S-BA and decreased to 72% with an increase in HC, followed by T-P > BOD > COD = T-N. The maximum removal efficiency values of BOD and COD were obtained at 67% and 52%, respectively, indicating that BOD removal was always higher than COD removal. Due to the low C:N and high HC, biodegradation was disregarded during filtration. Based on the different removal forms of T-P compared with TSS, adsorption would be involved in the removal of dissolved T-P by BA.