Featured Research

from universities, journals, and other organizations

Plant nutrients from wastewater

Date:
September 7, 2010
Source:
Fraunhofer-Gesellschaft
Summary:
Nitrogen, phosphorus and potassium -- there are valuable nutrients contained in wastewater. Unfortunately, these essential nutrients are lost in conventional wastewater treatment plants. This is the reason why researchers in Germany have been working on processes for regaining these nutrients in the form that can be used for agriculture.

Nitrogen, phosphorus and potassium -- there are valuable nutrients contained in wastewater. Unfortunately, these essential nutrients are lost in conventional wastewater treatment plants. This is the reason why researchers at Fraunhofer have been working on processes for regaining these nutrients in the form that can be used for agriculture.

They are showcasing their work at Fraunhofer's stand at the IFAT ENTSORGA fair (September 13-17 in Munich, Germany).

Plants cannot thrive without nutrients such as nitrogen, phosphorus or potassium, therefore farmers usually use organic and industrially manufactured mineral fertilizers to supply wheat, maize and others with these vital substances. In future, the need for nutrients will be soaring because we will only be able to supply the world's growing population with food and cover surging demands for biofuels by using fertilizers. Logically, that causes the prices for these nutrients to skyrocket. But that is not the only problem. The deposits of rock phosphates required for manufacturing phosphate fertilizers are becoming increasingly scarce. The researchers at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart, Germany are working at alternatives. They want to recover these essential nutrients from wastewater.

Dr.- Ing. Maria Soledad Stoll points out that "These nutrients are hardly recovered these days." For instance, conventional municipal waste treatment plants use aluminum or ferrous salts to remove the valuable phosphate. Ms. Stoll goes on to say, "However, aluminum and iron phosphate salts can be toxic for plants even in slight concentrations, which is why they cannot be used as fertilizers." The researchers at the Fraunhofer Institute for Interfacial Engineering and Biotechnology are devising alternative methods for recovering the nutrients from the wastewater to use them for agriculture.

"We are working at new methods to recover magnesium-ammonium-phosphate and organic phosphorus from wastewater. The nutrients will then be directly marketed as a fully adequate product and used in agriculture again depending upon the properties of the soils and cultivated plants," says Ms. Stoll.


Story Source:

The above story is based on materials provided by Fraunhofer-Gesellschaft. Note: Materials may be edited for content and length.


Cite This Page:

Fraunhofer-Gesellschaft. "Plant nutrients from wastewater." ScienceDaily. ScienceDaily, 7 September 2010. <www.sciencedaily.com/releases/2010/09/100907113141.htm>.
Fraunhofer-Gesellschaft. (2010, September 7). Plant nutrients from wastewater. ScienceDaily. Retrieved September 15, 2014 from www.sciencedaily.com/releases/2010/09/100907113141.htm
Fraunhofer-Gesellschaft. "Plant nutrients from wastewater." ScienceDaily. www.sciencedaily.com/releases/2010/09/100907113141.htm (accessed September 15, 2014).

Share This



More Earth & Climate News

Monday, September 15, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Conservationists Face Uphill PR Battle With New Shark Rules

Conservationists Face Uphill PR Battle With New Shark Rules

Newsy (Sep. 14, 2014) — New conservation measures for shark fishing face an uphill PR battle in the fight to slow shark extinction. Video provided by Newsy
Powered by NewsLook.com
Pakistan's 'killer Mountain' Fails to Draw Tourists After Attack

Pakistan's 'killer Mountain' Fails to Draw Tourists After Attack

AFP (Sep. 12, 2014) — In June 2013, 10 foreign mountaineers and their guide were murdered on Nanga Parbat, an iconic peak that stands at 8,126m tall in northern Pakisan. Duration: 02:34 Video provided by AFP
Powered by NewsLook.com
Solar Storm To Hit This Weekend, Scientists Not Worried

Solar Storm To Hit This Weekend, Scientists Not Worried

Newsy (Sep. 11, 2014) — Two solar flares which erupted in our direction this week will arrive this weekend. The resulting solar storm will be powerful but not dangerous. Video provided by Newsy
Powered by NewsLook.com
The Ozone Layer Is Recovering, But It's Not All Good News

The Ozone Layer Is Recovering, But It's Not All Good News

Newsy (Sep. 11, 2014) — The Ozone layer is recovering thickness! Hooray! But in helping its recovery, we may have also helped put more greenhouse gases out there. Hooray? Video provided by Newsy
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:
from the past week

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