Implementation of SEMIZENTRAL: An Integrated Infrastructure Approach for Fast-Growing Cities

Tolksdorf, Johanna, Bieker, Susanne and Cornel, Peter (2016). Implementation of SEMIZENTRAL: An Integrated Infrastructure Approach for Fast-Growing Cities. DNC Working Paper. United Nations University Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES).

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    Author Tolksdorf, Johanna
    Bieker, Susanne
    Cornel, Peter
    Editor Hettiarachchi, Hiroshan
    Title Implementation of SEMIZENTRAL: An Integrated Infrastructure Approach for Fast-Growing Cities
    Series Title DNC Working Paper
    Volume/Issue No. 2
    Publication Date 2016
    Place of Publication Dresden
    Publisher United Nations University Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES)
    Pages 16
    Language eng
    Abstract SEMIZENTRAL is an integrated, district-related infrastructure approach that has been developed for fast-growing cities, in order to meet their challenges in regard to the supply of water and the treatment of biowaste and wastewater. SEMIZENTRAL is characterised by high resource efficiency. In Qingdao (People’s Republic of China), the SEMIZENTRAL Resource Recovery Centre (RRC) has been implemented for the first time worldwide, in full-scale. Water being reused for toilet flushing and irrigation is derived from greywater and blackwater from the catchment area of the RRC. Due to the integration of food waste into the anaerobic sludge treatment, the production of biogas and electricity within the RRC is increased, thus enabling an energy self-sufficient operation. The effects of source separation of wastewater and the integration of food waste on process design, energy balance, and discharged nutrient loads are evaluated. Water reuse can save energy, compared to alternative water resources. The discharged nutrient load from the wastewater treatment to the receiving water bodies decreases considerably. Nevertheless, the effort required for wastewater treatment increases.
    Keyword urban water reuse
    integrated infrastructure systems
    energy efficiency
    Copyright Holder United Nations University Institute for Integrated Management of Material Fluxes and of Resources (UNU-FLORES)
    Copyright Year 2016
    Copyright type All rights reserved
    ISBN 9783944863443
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    Created: Fri, 18 Nov 2016, 17:33:32 JST by Claudia Matthias on behalf of UNU FLORES