Wastewater Treatment in Developing Countries, the Use of Physico-Chemical Processes for Achieving Affordable Disposal Schemes

Physico-Chemical treatment has the potential of serving as the innovative affordable treatment technology needed to boost wastewater treatment in developing countries.

Principal Water and Sanitary Engineer for The World Bank

The paper deals with wastewater treatment issues in developing countries. In these countries, priority of investment in the water sector is given first to water supply, next to sewerage and only then to wastewater treatment. In view of the water sector problems and financing restrictions, in most developing countries the percentage of wastewater that undergoes any type of treatment is very low. The needs, in terms of wastewater treatment in developing countries, are different than those of industrialized countries. Guidelines for good practice of wastewater management in developing countries and a strategy for achieving adequate wastewater disposal are proposed. The paper advocates the use of appropriate technologies for wastewater treatment based on simplified processes. 
The author suggests that Physico-Chemical treatment has the potential of serving as the innovative affordable treatment technology needed to boost wastewater treatment in developing countries and analyzes four such Physico-Chemical processes: (i) Chemically Enhanced Primary Treatment (CEPT); (ii) CEPT followed by filtration and disinfection; (iii) Chemically Enhanced preliminary treatment in Rotating Fine Screens (CERFS); and (iv) CERFS Followed by filtration and disinfection. Finally, the paper provides examples of failures in developing countries of using treatment strategies copied from industrialized countries and examples of use of and opportunities for Physico-Chemical treatment strategies in developing countries.



Copyright: © TU München - Lehrstuhl für Siedlungswasserwirtschaft
Quelle: 2004 - Chemisch-physikalische Abwasserbehandlung (Juli 2004)
Seiten: 28
Preis inkl. MwSt.: € 14,00
Autor: Dr. M. Libhaber

Artikel weiterleiten In den Warenkorb legen Artikel kommentieren


Diese Fachartikel könnten Sie auch interessieren:

Two-step biological treatment of coke oven wastewater
© DIV Deutscher Industrieverlag GmbH (8/2004)
Due to high concentrations of pollutants, some of them inhibitory or toxic, coke oven effluents belong to the most delicate industrial wastewaters. Application of conventional biological treatment technology requires low-loaded, i. e. large volume bioreactors.

Perspectives for Membrane Technology – Treatment Facilities in Wastewater Technology – Application in Decentralised Wastewater Treatment
© TU München - Lehrstuhl für Siedlungswasserwirtschaft (9/2002)
The membrane activation process will become during the next decades the most innovative and the most desirable step in the treatment of domestic and municipal waste water.

Wasser im Ringtausch - Energie und Düngemittel aus Abwasser
© Deutscher Fachverlag (DFV) (3/2008)
Neue Wege gehen Wasser und Abwasser in Knittlingen bei Pforzheim: Das Abwasser des Neubaugebiets ‚Am Römerweg’ wird zusammen mit Küchenabfällen semi-dezentral mit Anaerobtechnik gereinigt und gleichzeitig Biogas und Dünger als Wertstoffe gewonnen.

Wenn jeder Tropfen zählt - Singapur – globales Zentrum für nachhaltiges Wasser-Management
© Deutscher Fachverlag (DFV) (7/2007)
Mangels eigener Quellen setzt Singapur auf eine viergleisige Strategie, in deren Mittelpunkt die Schließung des Wasserkreislaufs steht. Im Zuge der Umsetzung entwickelt sich der asiatische Tigerstaat zum internationalen Zentrum für nachhaltige Wasser-Technologien.

Volcanic soils of southern Chile have demonstrated a great capacity to adsorb environmental pollutants.
© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben (9/2004)
For industrial applications in wastewater treatment facilities, a stable ceramic material was produced. The proposed process is based on the generation of a volcanic soil-polyurethane foam made with recycled PET-polyols.

Name:

Passwort:

 Angemeldet bleiben

Passwort vergessen?