Technical Feasibility of decentralised Greywater Treatment Units to improve Sanitation in peri-urban Areas of Ulaanbaatar, Mongolia - Diploma Thesis

Ulbrich, T. (2015)

Published in: 2015
Pages: 113

University of Science and Technology, Centre for Sustainable Environmental Sanitation

Ulbrich, T.

Uploaded by:
SuSanA Admin

Partner profile:
common upload


 Location of library entry

Content - Summary

Following the global development of large cities, Ulaanbaatar, capital of Mongolia, is currently facing the challenges that evolve from urbanisation. Informal settlements (‘ger areas’) are rapidly established outside the city centre. Ger area households are not connected to piped water supply or sewage systems and local residents are depending on drinking water from public water kiosks. After usage, the water is discharged into the soil, in an uncontrolled manner in form of greywater. Due to the fact that water is used several times and traditional diet contains high amounts of fat, local greywater is heavily polluted (COD up to 12,144 mg/l, E.coli up to 2.1*106 CFU/100ml). The lack of sewage systems is leading to high rates of water borne diseases, such as diarrhea or Hepatitis A. To face these challenges, two different greywater pilot systems are developed and constructed in the context of this research work. Their set-up and operation are specifically based upon high pollution levels of the greywater and extreme local climate conditions (temperatures drop below -40°C). The low-tech small-scale treatment units consist of multiple purification steps and are designed to achieve effluent values meeting irrigation standards. First laboratory analyses indicate satisfying and steady results and therefore demonstrate the technical feasibility of greywater treatment units in the research field.

Diploma Thesis written in cooperation with
University of Science and Technology
Centre for Sustainable Environmental Sanitation
Beijing / China

Table of Content

Table of Content

1. Introduction
2. Mongolia - geography, population, climate and water situation
3. ACF – Action Contre La Faim
4. Characteristics of greywater with focus on ulaanbaatar’s ger area
5. Reuse and discharge aspects of greywater
6. Treatment technologies applied at the greywater treatment units in the ger area
7. Greywater treatment units from 2010 – description and evaluation
8. Greywater treatment units from 2013 – greenhouse treatment unit and ice block unit
9. Operation, maintenance and monitoring guidelines of the greywater treatment units
10. Discussion
11. Conclusion

Bibliographic information

Ulbrich, T. (2015). Technical Feasibility of decentralised Greywater Treatment Units to improve Sanitation in peri-urban Areas of Ulaanbaatar, Mongolia - Diploma Thesis. University of Science and Technology, Centre for Sustainable Environmental Sanitation

Filter tags

Asia & Pacific Biogas systems Case studies in other formats English Greywater or wastewater Peri-urban SFD General Library



Format: pdf file
Size: 3.14 MB

Share this page on    

Follow us on    

SuSanA Partners  currently 362 partners

Sanitation events

SuSanA newsletter

Stay informed about the activities of SuSanA and its partners. The SuSanA newsletter is sent out around four times per year. It contains information about news, events, new partners, projects, discussions and publications of the SuSanA network.

Subscribe to newsletter »

Latest tweets mentioning SuSanA

  • 04-03-2021 19:01aguatuya:
    RT @fsm_alliance: We spoke to SCG Chemicals, @ihedelft , @susana_org and @aguatuya about why they've chosen to exhibit virtually this year… »
  • 04-03-2021 13:00SuSanA:
    Would you like to know about upcoming events relating to sanitation?🗣 Given this week's theme on #FSM💩♻️, you can… »
  • 04-03-2021 12:04SuSanA:
    Agreed- common terms are important! Any #Wikipedia enthusiasts who took a look at the title👀🤓… »
  • 04-03-2021 11:52SuSanA:
    RT @GIZWatSSUP: WatSSUP is implementing long-term COVID-19 preventive measures focusing on sustainable technologies for handwashing. One of… »
  • 04-03-2021 11:52SuSanA:
    RT @GIZWatSSUP: Today is the first day of our #WASHaLOTWednesday feature! Every Wednesday, for the next few months, we will share the story… »
  • 03-03-2021 18:38FSMA:
    We spoke to SCG Chemicals, @ihedelft , @susana_org and @aguatuya about why they've chosen to exhibit virtually this… »

Tweets mentioning SuSanA »

30th SuSanA meeting

The 30th SuSanA meeting - the first virtual of its kind - took place from August 17th to August 28th 2020. It was organised by the SuSana Secretariat with support and contributions from SuSanA Partners, Members, Working Groups and Regional Chapters.

Click here to get to the Meeting Page!

SuSanA meetings





Resources and publications

Our library has more than 3,000 publications, factsheets, presentations, drawings etc. from many different organisations. It continues to grow thanks to the contributions from our partners.

Add item to library »

The three links below take you to special groups of items in the library for more convenient access:


The project database contains nearly 400 sanitation projects of many different organizations dealing with research, implementation, advocacy, capacity development etc. Advanced filtering functions and a global map are also available. Information on how and why this database was created is here.

People working for SuSanA partners can add their own projects through their partner profile page. You might need your SuSanA login upgraded for this purpose. Please contact us if you would like to add a project.

Trainings, conference and events materials

Missed important conferences or courses? Catch up by using their materials for self study. These materials have been kindly provided by SuSanA partners.

Regional chapters

Use the map or the search tool to access the most relevant information and knowledge products for your region or country. This includes relevant resources, events, partners or projects.

Shit flow diagrams (SFDs), excreta flow diagrams

Shit flow diagrams (SFDs) help to visualize excreta management in urban settings. Access SFDs and more through the SFD Portal.




Discussion forum

Share knowledge, exchange experiences, discuss challenges, make announcements, ask questions and more. Hint: Your discussion forum login is the same as your SuSanA login. More about the forum's philosophy »

Integrated content

We are hosting content from some other communities of practice and information-sharing portals. This section also provides a link to SuSanA's Sanitation Wikipedia initiative.

Suggest content to add »

SuSanA partners

Not yet a SuSanA partner? Show your organisation's support to SuSanA's vision and engage in  knowledge sharing by becoming partners.

Apply to become a partner »

Individual membership

Register as an individual member of SuSanA free of charge. As a member you can interact with thousands of sanitation enthusiasts on the discussion forum.  You can also get engaged in one of our 13 working groups and our regional chapters. Our FAQs explain the benefits further.

By getting a SuSanA login you can fully participate in the SuSanA community!

Register as a member


Forgot your password?