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两步生物反应器中微生物对厌氧处理的制浆造纸厂废水的脱色

Colour removal of anaerobically treated pulp and paper mill effluent by microorganisms in two steps bioreactor.

作者信息

Singh Pratibha, Thakur Indu Shekhar

机构信息

Applied Environmental Biotechnology Laboratory, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110 067, India.

出版信息

Bioresour Technol. 2006 Jan;97(2):218-23. doi: 10.1016/j.biortech.2005.02.022. Epub 2005 Apr 25.

Abstract

In the present study sequential anaerobic and aerobic treatment in two steps bioreactor was performed for removal of colour in the pulp and paper mill effluent. In anaerobic treatment, colour (70%), lignin (25%), COD (42%), AOX (15%) and phenol (39%) were reduced in 15 days. The anaerobically treated effluent was separately applied in bioreactor in presence of fungal strain, Paecilomyces sp., and bacterial strain, Microbrevis luteum. Data of study indicated reduction in colour (95%), AOX (67%), lignin (86%), COD (88%) and phenol (63%) by Paecilomyces sp. where as M. luteum showed removal in colour (76%), lignin (69%), COD (75%) AOX (82%) and phenol (93%) by day third when 7 days anaerobically treated effluent was further treated by aerobic microorganisms. Change in pH of the effluent, and increase in biomass of microorganisms substantiated results of the study, which was concomitant to the treatment method.

摘要

在本研究中,采用两步生物反应器进行序批式厌氧和好氧处理,以去除造纸厂废水中的颜色。在厌氧处理中,15天内颜色(70%)、木质素(25%)、化学需氧量(42%)、可吸附有机卤化物(15%)和苯酚(39%)均有所降低。将厌氧处理后的废水分别在存在真菌菌株拟青霉属和细菌菌株短小微杆菌的生物反应器中进行处理。研究数据表明,拟青霉属可使颜色(95%)、可吸附有机卤化物(67%)、木质素(86%)、化学需氧量(88%)和苯酚(63%)降低,而当对厌氧处理7天的废水进行好氧微生物进一步处理时,短小微杆菌在第三天可使颜色(76%)、木质素(69%)、化学需氧量(75%)、可吸附有机卤化物(82%)和苯酚(93%)去除。废水pH值的变化以及微生物生物量的增加证实了该研究结果,这与处理方法相关。

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