Currently, the development of the world population is characterised by two trends: absolute population growth and rapid urbanisation. Especially rapid urbanisation, taking place in Asia, Latin America and Africa, poses major pressure on the affected regions. The development of e.g. Asian countries today is stamped by a combination of urbanisation with high economic growth rates. Conventional centralised infrastructure of supply, treatment and disposal of water is not able to cope with the new challenges arising from these, in history incomparable, high growth rates. Therefore new approaches to infrastructure supply and treatment systems are required - for ecological, sociocultural and economic reasons. The semicentralised approach, focusing on integrated water supply and treatment structures for wastewater and waste on the neighbourhood level, offers one possible solution to the challenges imposed by rapid urbanisation and growing resource needs. The change from centralised to semicentralised supply and treatment systems will minimise the grave discrepancy between the rapid urban growth and the provision of supply and treatment infrastructure. Integrated semicentralised supply and treatment systems face the challenge of growing amounts of wastewater and solid waste combined with rising needs of water for private households and industrial use. The semicentralised approach offers a wide range of flexibility in implementation, energy self-sufficient operation, enormous saving potentials in water demands through intra-urban water reuse and further more advantages in comparison to centralised sectored solutions as practised today.
Der Ansatz SEMIZENTRAL wurde als mögliche Lösung für Herausforderungen im Bereich der Wasserver- und Entsorgung schnell wachsender Städte entwickelt und im chinesischen Qingdao erstmalig realisiert. Für 12000 Einwohnerwerte wurde ein semizentrales Resource Recovery Center (RRC) errichtet. Ausgehend von einem Referenzentwurf erfolgte eine Anpassung an den realen Standort. Hierbei mussten insbesondere Stoffströme den lokalen Randbedingungen und die Verfahrenstechnik des Resource Recovery Centers Qingdao ShiYuan angepasst werden. Der Beitrag evaluiert den Einfluss der veränderten Stoffströme auf Verfahrenstechnik und Energiebilanz.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.