The project team of CuveWaters, led by ISOE – the Institute for Social-Ecological Research, has succeeded in turning wastewater into a resource in this most arid region of the world, so that processed wastewater from sanitary facilities can be used for agricultural purposes.
Communal sanitation facility in Outapi/Namibia
The project partners TU Darmstadt (Institute IWAR), Bilfinger Water Technologies and the ISOE are presenting the sanitation concept at the 9th IWA International Water-Reuse Conference in Windhoek/Namibia.
Approximately 850,000 people live in central northern Namibia. About 40 percent of the population in urban areas don’t have access to adequate sanitary facilities. In order to improve the sometimes dramatic situation for the population, the „Namibian Sanitation Strategy“ recommends using efficient flushing toilets in conjunction with innovative wastewater technologies.
As a result, the CuveWaters team has developed a novel sanitation concept plus vacuum system within the framework of an integrated water resources management (IWRM): The sanitary facilities are part of a complex disposal, treatment and re-use system that has been developed together with the local population and with Namibian partners from government and industry.
Energy efficient: Sanitation concept with water re-use in Outapi
The small city of Outapi (Omusati Region) was chosen as the site to implement the sanitation system with water re-use. It is home to 4,600 people, of whom 1,500 have been using the new sanitary facilities in a pilot plant since the beginning of 2013. The official handover of this plant to the municipal administration is now coming up on November 1st. The energy-efficient sanitation and wastewater concept in Outapi works this way: A vacuum system transports the wastewater from settlements in Outapi to a processing plant, where it is purified.
A multi-step purification process produces hygienically impeccable irrigation water. Together with the nutrients, the purified water is then used in the fields. A farmers’ cooperative works this land and sells the crops at local markets. Biogas is also won in the course of the purification process, which is used to generate power and heat. This covers a percentage of the operating energy of the vacuum canalisation and the wastewater treatment plant.
Promoting millennium goals through the transfer of technology and knowledge
The innovative concept isn’t just ideal for small rural settlements, but also opens up completely new perspectives for rapidly growing urban areas in particular. Within this context it is vitally important to involve the local population, as well as training and educating them. “Together with the ‚Community Health Clubs‘ which have arisen locally and which help people with hygiene issues, CuveWaters also makes sure that knowledge transfer takes place, in addition to technology transfer,” says project leader Thomas Kluge (ISOE).
The cultivation of agricultural areas also opens up new sources of income for farmers. “Altogether, this allows us to improve the living conditions of the population over the long term and make a contribution to reaching the millennium goals, which also include safeguarding health.”
CuveWaters will be presenting its project results together with the Outapi city administration at the Water Reuse Conference 2013 in Windhoek. CuveWaters is a joint project of ISOE in Frankfurt am Main/Germany and the Technische Universität Darmstadt/Ger¬many. It is being funded by the German Federal Ministry of Education and Research (BMBF). Namibian cooperation partners include the Ministry of Agriculture, Water and Forestry (MAWF), Outapi Town Council and the Desert Research Foundation of Namibia (DRFN).
CuveWaters at the IWA Reuse Conference in Windhoek, October 28th-31th 2013Contact in Namibia:
Dr. Nicola Schuldt-Baumgart | idw
Scientists team up on study to save endangered African penguins
16.11.2017 | Florida Atlantic University
Climate change: Urban trees are growing faster worldwide
13.11.2017 | Technische Universität München
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.
Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...
Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
17.11.2017 | Physics and Astronomy
17.11.2017 | Health and Medicine
17.11.2017 | Studies and Analyses