Samsung Engineering has patented a method and apparatus for reusing wastewater, involving multiple purification steps to treat mixed wastewater from semiconductor or display manufacturing processes. The effluent is reused as cooling or industrial water, with specific chemical treatments and pH adjustments at each stage for optimal results. GlobalData’s report on Samsung Engineering gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Samsung Engineering, AI assisted CAD was a key innovation area identified from patents. Samsung Engineering's grant share as of March 2024 was 75%. Grant share is based on the ratio of number of grants to total number of patents.
Method for reusing wastewater from semiconductor manufacturing processes
A recently granted patent (Publication Number: US11945744B2) outlines a method and apparatus for reusing wastewater, specifically targeting mixed wastewater from semiconductor or display manufacturing processes. The method involves a series of purification steps, including flocculation-sedimentation, membrane bioreactor, and reverse osmosis membrane units, to produce treated water suitable for reuse as cooling or industrial water. The process includes the introduction of specific chemicals at different stages to optimize purification, with a focus on maintaining pH levels and controlling phosphorus concentrations. The apparatus described in the patent includes various reactors, tanks, and membrane units designed to facilitate the purification process efficiently.
The patent also details additional features such as the introduction of disinfectants and anti-scaling agents, as well as a cleaning step for the reverse-osmosis membrane unit using a specific cleaning agent. The apparatus includes components like mixers, return lines for sludge, and specific membrane types to enhance the efficiency of the wastewater reuse process. By outlining a comprehensive method and apparatus for treating and reusing mixed wastewater from industrial processes, the patent aims to provide a sustainable solution for managing wastewater while minimizing environmental impact. The detailed description of the purification steps, chemical treatments, and equipment highlights the innovative approach taken to address the challenges associated with wastewater reuse in manufacturing industries.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
