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公开(公告)号：US3804757A
公开(公告)日：1974-04-16
申请号：US24712372
申请日：1972-04-24
Applicant: TEXACO AG
Inventor： RUSCHENBURG E
CPC classification number: C02F1/586 , C10K1/001 , Y10S210/909
Abstract: A PROCESS FOR TREATING CONTAMINATED WASTE WATER FROM MANUFACTURING PROCESS IS DISCLOSED. THE WATER CONTAINS, FOR EXAMPLE, HYDROGEN SULFIDE, AMMONIA AND PHENOL IN THE PRESENCE OF NON-VOLATILE AND STRONGLY ALKALINE IONS. AN AMMONIUM SALT OF A STRONG MINERAL ACID SUCH AS AMMONIUM SULFATE IS ADDED TO THE CONTAMINATED WASTE WATER AND THE AMMONIA AND HYDROGEN SULFIDE ARE STRIPPED AWAY. THE PHENOL SEPARATES AS AN OILY LAYER AND MAY BE REMOVED. THE AMMONIUM SULFATE NEEDED FOR THE PROCESS MAY BE GENERATED DURING THE PROCESS BY TREATING THE STRIPPED AMMONIA WITH SULFURIC ACID.
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