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New articles of HUNGARIAN AGRICULTURAL ENGINEERING

List of accepted articles to Issue No. 45/2026

1. EXAMINATION OF THE APPLICABILITY OF AN INDUSTRIAL WATER TREATMENT SYSTEM BASED ON MODULAR FILTRATION TECHNOLOGY FOR THE PRODUCTION OF HIGH-PURITY WATER: TECHNICAL CHALLENGES OF WATER SOFTENING, RO AND COLD WFI SYSTEMS

Author(s):

A. Kári-Horváth, K. Kirzsa

Abstract: The aim of this study is to evaluate a modular, membrane-based industrial water treatment system designed for the production of high-purity waters, including Purified Water (PW), Highly Purified Water (HPW) and Water for Injection (WFI). The proposed technology represents an alternative to conventional, energy-intensive distillation-based WFI systems by applying reverse osmosis (RO), electrodeionization and complementary membrane processes. Industrial practice indicates that traditional WFI production processes can be modernized by omitting the distillation step and replacing it with modular filtration-based technologies. The investigated system is capable of continuous operation and can also be operated economically in batch mode. The applied technologies contribute to improved process efficiency, reduced water consumption and lower environmental impact. The study is based on operational experience gained from industrial water treatment systems applied in industrial environments, with particular focus on practical challenges related to water softening and reverse osmosis pre-treatment. The results support the development of reliable and efficient filtration solutions that meet stringent water quality requirements and contribute to more sustainable industrial water management in the long term.

Keywords: electro deionization (EDI); cold water for injection (WFI); membrane technology; reverse osmosis (RO); water pre-treatment; sustainability

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