TP 4  –  Recovery of valuable materials by
membrane filtration


Based on the identification and assessment of relevant industries in Tra Noc Industrial Zone which allow economically reasonable recovery of valuable materials, an adopted process-integrated recovery system using membrane technology is developed and demonstrated.

Application of membrane technology

Polluted process water from industrial production processes often contains high concentrations of valuable materials that could still be (re)used. Membrane filtration technology can be used as a treatment step to recover these valuable materials by separating them from other impurities or by increasing their concentration. Membrane treatment is based on physical separation leading to unchanged properties of substances. Therefore the reuse of separated materials is possible with only limited post-treatment.

The recovery of wastewater constituents by membrane technology may result in positive economic outcomes through reduced consumption of resources and operating costs for the plant operators on the one hand, and through reduction of investment and operating costs for the downstream central wastewater treatment plant on the other hand.

Nevertheless, different membrane materials and their differences in selectivity and application ranges make a detailed pre-investigation necessary to reduce possible drawbacks. Because economic benefits are usually the main criteria for using these techniques, a careful pre-selection and investigation of capabilities is needed before installing membrane technology plants.


Brewery    Drying of shrimp shells for chitin production

Pilot system

By means of preparatory laboratory tests in Germany and Tra Noc, suitable membrane processes will be selected. Based on these results a pilot system will be designed and constructed by industrial partner EnviroChemie and installed at a brewery and a chitin production site in Tra Noc.

During the operation of the pilot plant different settings will be tested in order to achieve the optimum performance. Investigations on site will cover relevant aspects like fouling and scaling potential under consideration of local climate conditions, quality and stability of recovered materials, integration of re-use concepts for valuable materials (recyclables) as well as reduction of operating costs.


Flow scheme of TP 4 pilot system

Dissemination of results

In addition to transfer and dissemination of the elaborated project results by TP 4 partners, the Vietnamese-German University (VGU) is involved in the project for further support related to knowledge transfer measures.


Logo Vietnamese-German University

Main project partners

Link  EnviroChemie GmbH

Link  Technische Universität Darmstadt, Institut IWAR

Link  Hanoi University of Civil Engineering (HUCE)


Logo EnviroChemie   Logo TU Darmstadt   Logo HUCE

Participating industrial partners in Can Tho

Link  Western-Saigon Beer Joint Stock Company in Can Tho (WSB Can Tho)
    of Saigon Beer Company

Link  Phương Duy Biochemical J. V. Company / Suntze Lifescience Co., Ltd.