公开(公告)号：US5139679A

公开(公告)日：1992-08-18

申请号：US840207

申请日：1992-02-24

申请人： Bingham Y. K. Pan ,  Teh F. Yen ,  Jau R. Chen

发明人： Bingham Y. K. Pan ,  Teh F. Yen ,  Jau R. Chen

IPC分类号： C02F1/32 ,  C02F1/72 ,  G21F9/14

CPC分类号： G21F9/14 ,  C02F1/32 ,  C02F1/722 ,  Y10S210/908 ,  Y10S210/912

摘要： Process for treating wastewater containing citric acid and triethanolaminend heavy metals by subjecting the wastewater to treatment with hydrogen peroxide and ultraviolet light (UV) and in the presence of ferrous ion as catalyst, to substantially decompose the citric acid and the triethanolamine. Wastewater generated from ship bilge cleaning and containing up to 10% citric acid or up to 5% triethanolamine, or mixtures thereof, can thus be subjected to UV/H.sub.2 O.sub.2 treatment with ferrous ion in a concentration thereof of about 20 to about 100 ppm, without forming chelates of iron and other heavy metals with citric acid or with triethanolamine, to decompose up to 90% or more of the citric acid and triethanolamine.

摘要翻译： 通过使用过氧化氢和紫外线（UV）处理废水和在亚铁离子作为催化剂处理废水来处理含有柠檬酸和三乙醇胺和重金属的废水，以大致分解柠檬酸和三乙醇胺的方法。 因此，船舶舱底清洗产生的废水含有高达10％的柠檬酸或至多5％的三乙醇胺或其混合物，可以用浓度为约20至约100ppm的亚铁离子进行UV / H 2 O 2处理，没有 用柠檬酸或三乙醇胺形成铁和其他重金属的螯合物，以分解高达90％或更多的柠檬酸和三乙醇胺。