Water purification is the process of changing undrinkable water to drinkable (potable) water. Water is a very good solvent, it is this one fact which makes it difficult to obtain pure water without treatment. One solute commonly found in water is...

Based on an analysis of raw water, it is possible to calculate the amounts of treatment chemicals required. However, in practice it is found more desirable to set up a series of beakers containing the raw water and add treatment chemicals in the region...

see Mixed media...

Water purification is the process of removing contaminants from a raw water source. The goal is to produce water for a specific purpose with a treatment profile designed to limit the inclusion of specific materials; most water is purified for human...

Several water purification techniques suitable for laboratory applications are presented. These include adsorption, deionization, distillation, reverse osmosis, filtration, ultrafiltration and ultraviolet oxidation. Ultrapure water is an essential ingredient in a number of laboratory analytical procedures, including AAS, HPLC, IC, ICP-MS, GCMS, TOC, tissue...

The latest in water purification Many of the analytical and molecular biology applications that require the use of water include high-performance liquid chromatography (HPLC),1 total organic carbon (TOC) analysis, sample and media preparation, rinse steps in assays, and gel electrophoresis. Different types of...

Recent use of chlorine gas as a weapon in Iraq:Chlorine gas attacks the eyes and lungs within seconds, causing difficulty in breathing and skin irritation in low-level exposure. Inhaled at extremely high levels, it dissolves in the lungs to form hydrochloric acid that burns lung...

Nineteen people have contracted cholera in the Zimbabwean capital, Harare, in the first outbreak of the often-deadly disease in the city in a year, Zimbabwe state radio reported Friday.The 19 are from the impoverished eastern townships of Mabvuku and Tafara, where residents have gone without...