Verified Document

Reverse Osmosis Applications In Microfiltration To Purify Water Research Paper

ROMF Microfiltration and reverse-osmosis are both used commonly in the purification of water. Combining microfiltration and reverse-osmosis can enhance the strengths of each method. In particular, microfiltration can be used prior to a reverse-osmosis system to create a higher quality, more purified final product. Moreover, the microfiltration as a pretreatment of the water extends the life of reverse-osmosis membranes. This paper addresses the background of both microfiltration and reverse-osmosis systems, before exploring current and future applications of the combined microfiltration and reverse-osmosis systems in water treatment.

Reverse-osmosis is "a high-efficient technique for dewatering process streams, concentrating/separating low-molecular-weight substances in solution, or cleaning wastewater," ("Reverse Osmosis, Nano, Ultra & Micro Filtration," n.d.). The name of the process describes what it entails: it reverses natural osmosis. Osmosis is the movement of water through a membrane, motivated by the search for equilibrium in the chemical potential. During...

Parts of this document are hidden

View Full Document
svg-one

To reverse this process with the goal of removing the solute, pressure must be exerted. When pressure is exerted, the natural flow of water is reversed so that the solute remains on one side of the membrane. One of the most common uses of reverse-osmosis is in desalination, but it can also be used for wastewater treatment.
Microfiltration does not depend on pressure to the extent that reverse-osmosis does. Instead, the membrane itself is the key. Microfiltration membranes are in the range of 0.05-10 microns and can be used to separate specific particles ("Reverse Osmosis, Nano, Ultra & Micro Filtration," n.d.). Microfiltration enhances reverse-osmosis when it is used as a pre-treatment. One of the reasons microfiltration enhances reverse-osmosis is that the microfiltration prevents the buildup of organic and biological contaminants on the reverse-osmosis membrane. Thus, when a microfiltration system is used in conjunction with reverse osmosis, the result is a purer end product and…

Sources used in this document:
"Reverse Osmosis," (2012). GEA Filtration. Retrieved online: http://www.geafiltration.com/technology/reverse_osmosis.asp

"Reverse Osmosis, Nano, Ultra & Micro Filtration," (n.d.). GEA Filtration. Retrieved online: http://www.geafiltration.com/technology/membrane_filtration_process.asp

Vial, D. & Doussau, G. (2003). The use of microfiltration membranes for seawater pre-treatment prior to reverse osmosis membranes. Desalination 153(1): 141-147.
Cite this Document:
Copy Bibliography Citation

Related Documents

Technology in Film Fred Ott Was the
Words: 1898 Length: 6 Document Type: Essay

Technology in Film Fred Ott was the very first movie star that every existed. His brief starring role in the five-second film that showed him sneezing started the use of technology to make films. Since then, technology both in and out of film has changed immeasurably and what technology is used and is said about technology in these same films has evolved quite a lot and the statements sometimes made are

Technology Proposal Social Networking and
Words: 1070 Length: 4 Document Type: Term Paper

Creating an effective library social networking platform needs to start with a view of how to create a content management system (CMS) first (Dickson, Holley, 2010). The CMS serves as the system of record of all catalog and collection items, providing valuable statistics on how each book, content and collection item is being used (Shapira, Zabar, 2011). This is extremely valuable information for each department in the library to

Technology for Students With Disabilities
Words: 3214 Length: 11 Document Type: Research Paper

These benefits arise because of implementing both assistive technologies and Information Communication technology (ICT). The implementation of technology in classrooms usually has benefits to both the disabled students as well as the teachers (Kirk, Gallagher, Coleman, & Anastasiow, 2012, p.240). The general benefits of use of assistive technologies and ICT in teaching students with learning disabilities include greater learner autonomy and unlocking hidden potential with those with communication difficulties.

Technology in the Workplace the
Words: 2715 Length: 9 Document Type: Research Paper

Instead, organizations must strike a balance between the autonomy and independence offered by technology in the workplace and the need for employees to have some level of formal and informal commitment to the organization as a whole. Just as seemingly counterproductive activities such as doodling, daydreaming, or, in the information age, surfing the internet, can actually contribute to efficiency by offering employees productive mental stimulation, so too can the

Technology in the Classroom in Today's Society,
Words: 3260 Length: 10 Document Type: Research Paper

Technology in the Classroom In today's society, technology has become an accepted medium for communication. From email correspondence that has taken the place of mail, to texting instead of talking, advances in technology have become integrated into our daily lives. However, the line should be drawn when it comes to technology impeding academics and being incorporated into the classroom. Although many support the notion of technology in the class, others see

Technology Acceptance Model Tam and Information Systems Success...
Words: 4229 Length: 15 Document Type: Literature Review

Technology Acceptance Model Using Technology Acceptance Model (TAM) to Assess User Intentions and Satisfaction on Software as a Service (SaaS): The Value of SaaS Software as a Service (SaaS) was researched by Benlian and Hess (2011) in an effort to determine its value to companies. Among the arguments was that SaaS is already declining in popularity even though it is very new. The majority of the arguments that lean in that direction have

Sign Up for Unlimited Study Help

Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.

Get Started Now