iSaS project has published the documentation

iSaS - integrated Sanitation System

- an interdisciplinary student project of designers and environmental engineers at Bauhaus-Universität Weimar

Documentation of iSaS project

In context of a cooperation project between the master program Environmental Engineering and Sustainable Product Culture of the Bauhaus-Universitätniversity, four students worked together on the implementation of innovative and sustainable sanitation in the western society. The main challenge was to make the sustainable sanitation system acceptable for this new group of users. Through knowledge exchange, a shared research study and building user-scenarios together, three concept proposals for public sanitation facilities were created by the designers.

The facilities are especially thought for campsites. This scenario contributes extra to a successful introduction as people on holidays are normally more open for experiencing ‘new things’, thereby the user will use the facility more than once and can accustom to it. Also campsites are often located outside urban areas in nature. Therefor the new material cycle can even be closed in the direct surrounding. This is not only beneficiary for the acceptance of the new system, but also for the campsite itself.

In the facility the user will be confronted with the rising problems around the way we use our resources but is directly introduced to a viable solution. The three concepts all approach the information sharing unique ways and thereby serve different settings. Because of the interdisciplinary work in the team, it was able to integrate the facility in its respective surroundings. The Engineers were responsible for the material management and the designers dealt with the user- experience. The close cooperation was very important as the fields overlapped on many points. The students have profited a lot from the cooperation, what can clearly be seen in the result of their remarkable work.

iPiT® ариун цэврийн байгууламж нь Монголын гэр хороололд тохирсонхамгийн үр ашигтай шийдэл

Дархан хотын 7-р багт нэвтрүүлэх iPit® ариун цэврийн байгууламжийн үр ашгийг тооцоолохдоо муж улсуудын усны ажлын хэсгээс (LAWA-Länder-Arbeitsgemeinschaft Wasser) боловсруулсан зардлын динамик тооцоололд суурилан 40 хүртэл жил ажиллах нийт өртгийг бодож гаргажээ. Техникээс ангид бусад олон төрлийн шийдлийг үүнд хамруулан судалснаас гадна 7 дугаар багийн ахуйн хог хаягдлын төвлөрүүлэлт болон тээвэрлэлтийн асуудлыг энэхүү ариун цэврийн байгууламжийн өртгийн тооцооны загварын нэгэн хэсэг болгон авч үзсэн байна. Хамгийн бодит үнэлгээг хийхийн тулд уг эдийн засгийн үр ашгийн судалгаанд хөрөнгө оруулалтын болон төлөвлөлтийн нийт өртөг, хог төвлөрүүлэлт, тээвэрлэлтийн зардал, ажиллах хүчний өртөг, зохион байгуулалтын болон мэргэжилтэн бэлтгэх, сургалт зохион байгуулах зардал, нэмэлт хөрөнгө оруулалт, инфляци, үнийн өсөлт болон засвар үйлчилгээний зардал зэргийг харгалзан үзжээ. Нийт ашиглалтын хугацааны хувьд болон тооцоонд оролцуулсан техникийн шийдлүүдийн дундаас эдийн засгийн хувьд хамгийн ашигтай нь iPit® систем болохыг судалгааны үр дүн харуулж байна.
Уг судалгааны дараагийн шатанд 7-р багийн нутаг нутаг дэвсгэрт барих бохир татан зайлуулах төвлөрсөн инженерийн шугам сүлжээний урьдчилсан төсөл зураг гаргав. Хийх ажлын дэлгэрэнгүй жагсаалтыг тухайн зураг төсөл дээр үндэслэн гаргаж тендерийн хүрээнд орон нутгийн хэд хэдэн барилгын компаниар үнийн санал гаргуулсан байна. Инженерийн цогц шугам сүлжээ барихад шаардлагатай бодит үнийг тооцоолон гаргахын тулд энэхүү тендер нь ажил гүйцэтгүүлэх захиалга болон хэрэгжихгүй гэдгийг оролцсон компаниудад сануулсан ба ингэснээр үнийн хэт хөөргөлтөөс зайлсхийж чадсан юм.

Зураг: Дархан хотын 7-р багийн инженерийн үугам сүлжээний зураг

Үнийн саналуудыг шалгаж үзэхэд инженерийн шугам сүлжээний зөвхөн хоолой татахад шаардлагатай хөрөнгө оруулалтын хэмжээ нь iPit® ариун цэврийн байгууламжийн нийт хөрөнгө оруулалтын хэмжээнээс даруй 10 дахин өндөр гарсан.
Мөн iPit® ариун цэврийн байгууламжийг 7 дугаар багт 40 жил ашиглах нийт зардал нь төвлөрсөн цэвэрлэх байгууламж барих зөвхөн хөрөнгө оруулалтын зардлаас бага байх тооцоо гарчээ.

Зураг: Монголын өвлийн нөхцөлд iPit® ариун цэврийн байгууламжийн бохир цуглуулах савнуудыг сольж байгаа байдал

Иймд iPit® ариун цэврийн байгууламж нь эдийн засгийн хувьд Монголын гэр хороололд хамгийн тохиромжтой систем юм.

(Жич: Төвлөрсөн цэвэрлэх байгууламж нь усаар зайлдаг суултуур шаардах ба суултуурын үнийг тооцоонд оруулаагүй болно. Үүний зэрэгцээ суултуурын байнгын саадгүй ажиллагааг хангахын тулд өвлийн улиралд байнгын халаалттай байх шаардлагатай тусдаа өрөө шаардагдана. Гэр хорооллын ихэнхи оршин суугчдад энэ бүх шийдлийг хангах санхүүгийн боломж байдаггүй.)

BREAKING: Long awaited: DWA-A 272 paper published: All about the implementation of NASS

After a long working process and sound revision of many Germany experts the DWA Working Paper DWA-A 272 "Grundsätze für die Planung und Implementierung Neuartiger Sanitärsysteme (NASS) (Juni 2014)" (English title: "Basic rules for planning and implementation of New Alternative Sanitation Systems (NASS)") has been published.

Please refer to:

http://www.dwa.de/dwa/shop/shop.nsf/Produktanzeige?openform&produktid=P-DWAA-9KK8A2

iPiT's latest news now on twitter !

Dear,

iPiT news is now on twitter.

Find whats going on under https://twitter.com/iPiT_News

Let us know what you think about and what you believe we should share with the twitter community

575 Million people on this planet could benefit from the iPiT®sanitation system

Almost one third of the world´s population (2.6 billion people) is lacking access to adequate sanitation. A huge number of projects and concepts for ecological sanitation systems try to mitigate the impact of the worldwide sanitary crisis.

Unfortunately most of these projects only reach a very small number of people due to limited funding periods, missing legal framework and among others also unavailable adapted technology. So far investors show no interest in investing into the development of technologies and concepts for sanitation system, as they do not realize a significant market potential.

Therefore it is natural to ask the question, how many people could actually be reached and could benefit from the iPiT® sanitation system, as it has been developed by the Bauhaus-Universität Weimar ?!

In a recently finished study this number has been estimated with a surprising result: Based on the number of people without access to sanitation, the research group estimated the part of this population, which lives in circumstances suitable for the implementation of the iPiT® sanitation system. Certain minimal criteria, such as the economical-societal level of the people, education, legal framework, political stability, spatial urban structures and more have been considered in the study. Those criteria were seen as limiting factors and needed to be fulfilled before potentially allow for the implementation of  an iPiT system, e.g. countries in civil war, too low economic level or other limiting frame conditions were excluded from the estimation.

Yet still, an estimated 575 million people (25% of all 2.6 B without access to sanitation) could be reached by an integrated, resource-based sanitation system such as the iPiT sanitation system.

Is there anybody out there seeing a potential to invest here and help to mitigate the sanitary crisis?

Wohin das Wasser fließt - SWR2 Radiosendung über SANO-Projekt des b.is in Südafrika ist online

Im März 2013 reisten Wissenschaftler des b.is im Rahmen des Deutsch-Südafrikanischen Jahres der Wissenschaft nach Südafrika. Begleitet wurde das Team auf seiner Reise von der Hörfunk-Journalistin Nora Bauer. Über die Kooperation mit der North-West-University Potchefsstroom ist eine interessante Hörsendung entstanden, welche in eindrücklicher Weise die Arbeit der deutsch-südafrikanischen Forschergruppe dokumentiert.

Das Radiofeature "Wohin das Wasser fliesst" ist online auf SWR2 nach zu hören.

The iPiT® sanitation system is by far the most economic solution for Ger settlements in Mongolia

In order to examine the economic efficiency of the iPiT® sanitation system in Bag7 (Darkhan), a dynamic cost comparison has been undertaken using an international standardized method. Different sanitation concepts and depreciation times up to 40 years have been evaluated, whereby the collection and transport of domestic solid waste has been included additionally in all the sanitation concepts.

All investment costs, costs for planning, collection, transport, salery of staff, administration, capacity development, re-investments, inflation, maintenance etc. have been considered in order to achieve the most possible realistic results in the calculation. The results showed clearly, that the iPiT® sanitation system is most cost-effective among all the considered sanitation concepts and all depreciation periods.

In a further step, a preliminary planning for a conventional sewage system for Bag7 has been done. With the help of this planning a quantity survey has been done and a detailed bill of quantity has been generated and handed over to several construction companies in Mongolia in a tender process. The Mongolian companies were informed, that the tender process will not lead to an assignment in order to avoid price dumping. This was important in order to being able to calculate realistic construction costs.

Preliminary sewage network bag7, Darkhan

The evaluation of the tender documents showed, that the investment costs alone for a conventional sewage system for Bag7 are at least 10 times higher, than the investment costs for the iPiT sanitation system, which has been developed in the MoMo2 research project!

With the help of the dynamic cost comparison model it became apparent, that the overall costs for the iPiT sanitation system for bag 7 including its complete operation over 40 years are lower (!), than the investment costs of a conventional sewage system alone !!! 

iPiT in action - exchange of container and transport in harsh Mongolian winter

Therefore the iPiT® sanitation system is also from an economic stand point the most useful solution for Ger settlements in Mongolia !

(Further remark: The conventional system requires a private water-flush toilet, which was not included in the cost estimate. A separated, permanently heated room for the WC to function in the winter time is required. This is not affordable for many of the residents in the Ger settlements.)