Featured Research

from universities, journals, and other organizations

Separating Out Urine Makes For Highly Efficient Waste Water Treatment

Date:
November 27, 2008
Source:
EAWAG: Swiss Federal Institute of Aquatic Science and Technology
Summary:
Urine accounts for only 1% of the total volume of wastewater, but it contains up to 80% of all the nutrients. Separating urine from other wastewater can result in a highly efficient waste water treatment facility.

The Novaquatis urine source separation project at Eawag has developed a highly efficient wastewater treatment plan.

The basic idea is simple: urine accounts for only 1% of the total volume of wastewater, but it contains up to 80% of all the nutrients. If it is processed separately, wastewater treatment plants can be reduced in size, water protection can be improved, and nutrients can be recycled. Separate treatment of wastewater streams thus opens up new possibilities, and there are many reasons for adopting urine source separation (“NoMix”) technology on a large scale.

This is particularly important in fast developing countries such as China, where sewerage and wastewater treatment facilities cannot keep up with the rapid pace of urbanization, and water pollution arising from domestic wastewater has reached devastating levels.

While the Eawag researchers’ approach may sound straightforward, there is no guarantee that it can be implemented in practice: infrastructure that is already in place cannot be transformed overnight; the new toilets still have some defects – pipes may be blocked by urine scale; the sanitary industry as yet sees little commercial potential in the NoMix technology, and the fertilizer produced from urine cannot yet compete with low-cost artificial products. So obstacles remain to be overcome.

if urine is to be treated with the aid of decentralized systems, and nutrients are to recovered in a concentrated form for recycling, what options offer the best prospects of implementation and the lowest environmental impact? For researchers Tove Larsen and Judit Lienert, it is quite clear: “It’s standard practice for garden waste to be separately collected. So surely it should also be possible one day for the six kilograms of concentrated phosphorus produced each year by a family of four to be separately processed.”


Story Source:

The above story is based on materials provided by EAWAG: Swiss Federal Institute of Aquatic Science and Technology. Note: Materials may be edited for content and length.


Cite This Page:

EAWAG: Swiss Federal Institute of Aquatic Science and Technology. "Separating Out Urine Makes For Highly Efficient Waste Water Treatment." ScienceDaily. ScienceDaily, 27 November 2008. <www.sciencedaily.com/releases/2008/11/081127103214.htm>.
EAWAG: Swiss Federal Institute of Aquatic Science and Technology. (2008, November 27). Separating Out Urine Makes For Highly Efficient Waste Water Treatment. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2008/11/081127103214.htm
EAWAG: Swiss Federal Institute of Aquatic Science and Technology. "Separating Out Urine Makes For Highly Efficient Waste Water Treatment." ScienceDaily. www.sciencedaily.com/releases/2008/11/081127103214.htm (accessed October 21, 2014).

Share This



More Earth & Climate News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-Fuel Impala

Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-Fuel Impala

3BL Media (Oct. 20, 2014) Hey, Doc! Sewage, Beer and Food Scraps Can Power Chevrolet’s Bi-fuel Impala Video provided by 3BL
Powered by NewsLook.com
White Rhino's Death In Kenya Means Just 6 Are Left

White Rhino's Death In Kenya Means Just 6 Are Left

Newsy (Oct. 20, 2014) Suni, a rare northern white rhino at Ol Pejeta Conservancy, died Friday. This, as many media have pointed out, leaves people fearing extinction. Video provided by Newsy
Powered by NewsLook.com
New Organic Fertilizer Helps Reforestation of Monarch Butterflies’ Winter Retreat

New Organic Fertilizer Helps Reforestation of Monarch Butterflies’ Winter Retreat

Reuters - Innovations Video Online (Oct. 20, 2014) Using an organic fertiliser, a conservationist from the National Autonomous University of Mexico (UNAM), leads an award-winning project to reforest the sanctuary of monarch butterflies. Sharon Reich reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins