An innovative greywater treatment system for urban areas ... - SuSanA

the general living conditions. Many mega-cities are engines of growth and centers of
productivity. According to OECD (Organisation for Economic Co-operation and
Development) calculations, Mexico City and Sao Paulo, generate about 50 percent of the
national income. Bangkok contributes more than 40 percent of national gross domestic
product, even though only ten percent of the population of the country lives there. In these
cities human resources and capital is concentrated and there are also social resources such
as charities and local organisations. The concentration of the population in mega cities,
offers the possibility of efficient provision of goods and services with relatively low per-capita
costs (Hansjürgens & Heinrichs, 2007).
Therefore, greywater recycling via MBR systems can be ideally meet challenges of water
scarcity in existing or emerging megacities. Of course, these urban metropolitan areas often
have a very high proportion of the population living in slums, but for urban development
planning projects, the greywater recycling technology implemented within residential
buildings is still an ideal application. This technology has a high potential to improve the living
conditions in megacities.
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