Water Purification System

A water purification system is a set of processes and equipment that removes physical, chemical, and biological contaminants from water to make it suitable for drinking, research, industrial use, or environmental applications. Depending on water quality and intended use, treatment may combine filtration to capture particles, activated carbon to adsorb dissolved compounds, reverse osmosis to separate solutes through a membrane, and disinfection using ultraviolet light or chemical agents to inactivate microorganisms. In biology, purified water helps prevent contamination and inconsistent results in cell culture, molecular assays, media preparation, and laboratory equipment. Effective system design therefore supports experimental reliability, public health, and sustainable water management.

Water Purification System - Related Videos

Research

JoVE Journal - Bioengineering

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

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Cited by 10 •

2017

This paper reports practical methods to prepare hydrogels in freestanding films and impregnated membranes and to characterize their physical properties, including water transport properties.

Education

JoVE Science Education - Basic Biology

Plasmid Purification

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2023

Plasmid purification is a technique used to isolate and purify plasmid DNA from genomic DNA, proteins, ribosomes, and the bacterial cell wall. A plasmid is a small, circular, double-stranded DNA that is used as a carrier of specific DNA molecules. When introduced into a host organism via transformation, a plasmid will be replicated, creating numerous copies of the DNA fragment under study. In this video, a step-by-step generalized procedure is described for how to perform plasmid purification.

Gel Purification

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2023

Gel purification is used to recover DNA fragments after electrophoretic separation. DNA recovery from an agarose gel includes three basic steps: binding, washing and eluting from a silica column. DNA is believed to bind to silica in the presence of high salt via a salt bridge. Following binding, DNA is washed of impurities and eluted under low salt conditions disrupting this interaction. This video goes through a step-by-step, generalized procedure for cutting out a band from the gel, gel...

GST-His purification: A Two-step Affinity Purification Protocol Yielding Full-length Purified Proteins

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Cited by 18 •

2013

In the present protocol, we demonstrate a highly efficient and cost-effective small-scale protein purification method, which allows purification of recombinant proteins by uniquely combining a cleavable GST-tag and a small His-tag.

Research

JoVE Journal - Environment
Free Sample

Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water

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2025

This study presents the methodology for the generation of six different types of plasma discharges within a Hyperbolic Vortex Plasma Reactor for the degradation of micropollutants in water, including pharmaceuticals and per- and polyfluoroalkyl substances (PFAS).

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