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1. CN1226225 - Biological treatment method for waste alkali liquid

Office
Chine
Numéro de la demande 97196830.6
Date de la demande 23.07.1997
Numéro de publication 1226225
Date de publication 18.08.1999
Numéro de délivrance 1155526
Date de délivrance 30.06.2004
Type de publication C
CIB
C02F 3/34
CCHIMIE; MÉTALLURGIE
02TRAITEMENT DE L'EAU, DES EAUX RÉSIDUAIRES, DES EAUX OU BOUES D'ÉGOUT
FTRAITEMENT DE L'EAU, DES EAUX RÉSIDUAIRES, DES EAUX OU BOUES D'ÉGOUT
3Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout
34caractérisé par les micro-organismes utilisés
CPC
C02F 3/345
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
34characterised by the microorganisms used
345for biological oxidation or reduction of sulfur compounds
Y10S 210/916
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
210Liquid purification or separation
902Materials removed
916Odor, e.g. including control or abatement
C02F 3/34
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
34characterised by the microorganisms used
Déposants Paques Biological System N. V.
帕克斯生物系统公司
Inventeurs Albert Jozef Janssn
阿尔伯特·约瑟夫·扬森
Gatze Lettinga
加茨·莱廷加
Cees Yang Nick Bismann
塞斯·扬·尼克·比斯曼
扬·邦策马
赫里特·范斯特拉腾
约翰内斯·海斯布莱希特·屈嫩
约琳·玛尔塔·玛丽亚·德茨瓦尔特
Mandataires guo xiaodong
永新专利商标代理有限公司
Données relatives à la priorité 96202138.2 29.07.1996 EP
Titre
(EN) Biological treatment method for waste alkali liquid
(ZH) 废碱液的生物处理方法
Abrégé
(EN) A process for the biological treatment of a spent caustic solution containing sulphides is disclosed, wherein the solution is introduced into an aerobic reactor containing sulphide-oxidising bacteria, and the sulphides are partly converted to elemental sulphur and partly to sulphate by controlling the redox potential in the reactor at a value below -300 mV (against an Ag/AgCl reference electrode), or below -97 (against a H2 reference electrode). Also disclosed is process for the biological treatment of an aqueous solution containing sulphides and/or mercaptans in an aerobic reactor, wherein the solution is treated in the presence of bacteria of the new species Methylophaga sulfidovorans.
(ZH)

本发明公开了一种含有硫化物的废碱液的生物处理方法,其中溶液被加到含有硫化物氧化菌的通气反应器中,通过控制反应器中氧化还原电势低于-300mV(Ag/AgCl作参考电极),或者低于-97mV(以H2作参考电极),将硫化物部分转化成元素硫,部分转化成硫酸盐。本发明还公开了一种含有硫化物和/或硫醇的水溶液的生物处理方法,其中溶液在新菌种Methylophaga sulfidovorans的存在下进行处理。