AquaViet

Faculty of Civil Engineering

AquaViet

Master Plan for Bank Filtration for the Drinking Water Supply in Vietnam

The drinking water supply in Vietnam is confronted with major challenges: Contamination of water by anthropogenic trace substances, pathogenic microorganisms, and geogenic contamination leading to high ammonium, iron and most importantly arsenic in several groundwater wells and high flood risk in many places complicate the treatment of surface water using conventional procedures. The primarily used methods of surface water treatment are often threatened by turbidity peaks and pollution with wastewater. For groundwater treatment, high concentrations of ammonium, iron, manganese and arsenic in groundwater are problematic in many places. In addition, the overuse of groundwater resources leads to localized terrain sinking. Bank filtration has been used successfully in Germany for water supply for more than 140 years. It is a cost-effective, environmentally-friendly alternative as a first step in water treatment. AquaViet is investigating the advantages and limits of bank filtration under the difficult conditions in Vietnam. The project is developing solutions for the design and operation of water production and treatment plants.

 

M.Eng. Gustavo Luis Covatti

M.Eng. Gustavo Luis Covatti

The major goal of the project is to develop a master plan for RBF application in Vietnam, including:

  • Determination of feasibility of RBF according to hydrogeological and hydrochemical conditions in the Red River Delta
  • Investigation and evaluation of water quality for surface, ground and bank filtrate water an different sites in Vietnam with special focus on ammonium, arsenic and organic micropollutants
  • Implementation of technical solutions of safe drinking water disinfection with low disinfection byproduct formation at a pilot-site, e.g. with chlorination using inline electrolysis and UV or production of chlorinedioxide
  • Development of a multi-stage filter system for the removal of ammonium, manganese, iron and arsenic
  • University of Applied Sciences Dresden, Division of Water Sciences, Prof. Thomas Grischek (HTWD, Project coordinator)
  • Technical University Dresden, Institute for Water Chemistry (TUD)
  • DVGW-Technologiezentrum Wasser, Außenstelle Dresden
  • Herbst Umwelttechnik GmbH, Berlin
  • UMEX GmbH Dresden
  • AUTARCON GmbH, Kassel
  • a.p.f. Aqua System AG, Wuppertal
  • bbe Moldaenke GmbH, Schwentinental
  • Arcadis Germany GmbH, Niederlassung Berlin
  • Thuyloi University, Hanoi (Vietnam)
  • Bac Ninh Water Supply and Drainage Co., Ltd., Bac Ninh (Vietnam)
  • Investigation and appraisal of several existing and potential RBF sites in Vietnam
  • Development of methodology for evaluation RBF sites and an application of this methodology to the Red River Delta with the use of GIS
  • Evaluation of water quality from RBF well fields in the city of Hanoi in northern Vietnam and Quy Nhon in central Vietnam
  • Study of the sources and behavior of ammonium and arsenic during riverbank filtration in the city of Hanoi and the implications for RBF application in tropical climates and deltaic regions
  • Appraisal of micropollutant concentrations in surface, ground and bank filtrate water in Vietnam
  • Development of treatment technologies in the laboratory specific to Vietnam typical water quality conditions (e. g. high ammonium, iron and arsenic concentration)
  • Implementation of innovative water treatment and disinfection at pilot-scale for a groundwater well field near Bac Ninh, northern Vietnam