FAQ
Q：What are the uses of industrial wastewater recovery and what are its water quality standards?
The use of industrial wastewater recovery can be divided into process water, cooling water and boiler water. Among them, process water is the largest, and the quality of process water depends on the quality of water required for each process attribute and the quality of water concerned. For the general industry, the tap water standard is the raw water quality of the process that each industry can accept.
Q：What are the common technologies for industrial wastewater recycling? What is the current trend?
The commonly used industrial wastewater recovery technologies include: Filtration, Microfiltration (MF), Ultrafiltration (UF), Adsorption, Oxidation, Reverse Osmosis (RO), Electrodialysis (ED), Ion exchange (IE), and Disinfection.
At present, the double-film process is commonly used for international industrial waste water recycling. This is because the RO reverse osmosis process can regenerate wastewater to extremely high quality and is suitable for all applications. In a typical design, the effluent water is first passed through the MF/UF system to remove particulate matter and larger colloids to reduce the fouling of the RO membrane, and also provides the opportunity to remove biological contamination such as bacteria and spores. The RO program is responsible for the removal of finer colloids and dissolved substances such as divalent ions and partially monovalent ions.
At present, the double-film process is commonly used for international industrial waste water recycling. This is because the RO reverse osmosis process can regenerate wastewater to extremely high quality and is suitable for all applications. In a typical design, the effluent water is first passed through the MF/UF system to remove particulate matter and larger colloids to reduce the fouling of the RO membrane, and also provides the opportunity to remove biological contamination such as bacteria and spores. The RO program is responsible for the removal of finer colloids and dissolved substances such as divalent ions and partially monovalent ions.
Q：The water fee in Taiwan is very cheap. Why do we still need wastewater recycling?
The cost of waste water recycling is naturally inconsistent with economic efficiency if it is compared with the water price of tap water. However, in addition to reducing water pollution discharge fees or sewage sewerage usage fees, waste water recycling can also provide a stable source of water quality and volume, and it is of great help in reducing environmental impact and enhancing corporate image.