نتایج جستجو برای: sulfite mill effluent

تعداد نتایج: 29454  

2005
Claudia Regina Xavier Elizabeth Oñate Gladys Vidal

Organic compounds present in the bleached kraft pulp mill (BKPM) effluents may be reduced by biological treatment like: activated sludge (AS) or aerated lagoon (AL). However, after biological treatment, BKPM effluent still contains specific compounds. Some of them have been related with chronic effects (DNA damage, reproductive and physiological) observed on fishes exposed to BKPM effluents. Th...

2008
ARNAB KUMAR

The present study was conducted for the removal of color of pulp and paper mill effluent using coal fly ash as an adsorbent. The effect of adsorbent dose and pH on color removal has been determined. 100 % color removal was achieved when adsorbent dose was 2.4 gm or more and at pH 6.8 and above. Jr. of Industrial Pollution Control 24 (1)(2008) pp 1-8 © Enviromedia Printed in India. All rights re...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2007
A H Mounteer R O Pereira A A Morais D B Ruas D S A Silveira D B Viana R C Medeiros

In this study a poorly biodegradable (BOD/COD = 0.3) industrial alkaline ECF bleaching filtrate was treated using different advanced oxidation processes to evaluate their use in combined chemical-biological treatment aimed at increasing recalcitrant COD removal and improving final effluent quality. Oxidative treatments included ozonation combined with hydrogen peroxide (2, 5, 10, 20 mmol L(-1) ...

2013
J. C. Igwe

Palm oil is one of the two most important vegetable oils in the world’s oil and fats market. The extraction and purification processes generate different kinds of waste generally known as palm oil mill effluent (POME). The environmental impact of POME cannot be over emphasized; hence the need for treatment measures to reduce these impacts before discharge. Therefore, this paper reviews the proc...

1976
R. J. P.

Cet article sert d'anikre-plan et dkfinit la portee d'itudes entreprises conjointement par les ministkres ontarien et fideral de 1'Environnement sur I'effet de ]'effluent d'un moulin de piges et de papier sur un icosystbme d'eau douce. On y presente de brkves descriptions des caractiristiques du moulin de pite et de papieret de la baie Nipigon pertinentes aux etudes contenues dans ce numiro. fr...

2013
Sangeeta Dey Manabendra Dutta Choudhury

Pulp and paper mill, controversially, is one of the largest and major contributors of pollution in aquatic environment, affecting aquatic organisms in general and fishes in particular. Several field and laboratory studies were conducted worldwide on effects of both treated and untreated paper mill effluents on fish. The studies showed wide ranges of toxicity at organismal as well as at populati...

2011
Charles Ogugua Nwuche James Chukwuma Ogbonna

In this study, twelve fungal lipase producing strains belonging to Aspergillus, Penicillium, Trichoderma and Mucor genera were isolated from palm oil mill effluent composts. The Aspergillus spp. were more frequent (42%) and was present in all the samples assayed. Mucor sp. was the least encountered (8.3%).The lipase producing profile showed that Trichoderma (8.07-8.24 u/mL) and Aspergillus (6.2...

Journal: :Journal of environmental biology 2009
Yamini Satyawali Deepak Pant Anoop Singh R K Srivastava

The Rayon grade pulp (RGP) drain effluent of pulp and paper mill was studied to find out pollutant loading and its control measures by low cost and efficient treatment method. Upflow anaerobic fixed packed bed reactor (UAFPBR) with brick ballasts as packing material was used for this purpose. This was compared with conventional anaerobic treatment method. The digested slurry was taken as inocul...

Journal: :جنگل و فرآورده های چوب 0
سمانه کریمی دانش آموختۀ دکتری، دانشگاه پوترا ، پوترا ، مالزی علی عبدالخانی دانشیار گروه علوم و صنایع چوب و کاغذ ؛ دانشکده منابع طبیعی ؛ دانشگاه تهران ، کرج ، ایران . حمیدرضا رودی استادیار، گروه فناوری تولید سلولز و کاغذ، دانشکده انرژی و فناوری های نوین ، دانشگاه شهید بهشتی ، زیراب ، ایران علی نقی کریمی استاد گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران یحیی همزه دانشیار گروه علوم و صنایع چوب و کاغذ، دانشکدة منابع طبیعی، دانشگاه تهران، کرج، ایران

the efficiency of oxidation processes, enzymatic treatment, and combined enzymatic/chemical sequences on color remediation of cmp pulp mill effluent was investigated. two kinds of fungal enzymes; laccase (ec: 1.10.3.2) from terametes versicolor and versatile peroxidase (ec: 1.11.1.7) from bjerkandera adusta were chosen and applied. also, the effect of external mediator on the enzyme based degra...

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