Japan, Feb. 24 -- NIPPON STEEL ENGINEERING CO LTD has got intellectual property rights for 'WASTEWATER TREATMENT METHOD.' Other related details are as follows:
Application Number: JP,2019-185013
Category (FI): C02F3/12@H,C02F3/12@V,C12N1/00@S,C12N15/53
Stage: PROBLEM TO BE SOLVED: To provide a wastewater treatment method capable of stably treating persistent organic wastewater containing 1,4-dioxane, which is a persistent organic substance generated in the process of ethylene oxide production, with low energy load.SOLUTION: A wastewater treatment method is a method in which persistent organic wastewater containing 1,4-dioxane is subjected to biological treatment using activated sludge, and in which the hydraulic residence time in the biological treatment is 4 days or more.SELECTED DRAWING: None (Grant)
Filing Date: Oct. 8, 2019
Publication Date: April 15, 2021
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
