Wastewater treatment options for paper mills using recycled paper/imported pulps as raw materials: Bangladesh perspective

Chemical Engineering Research Bulletin Pub Date : 2010-06-06 DOI:10.3329/CERB.V14I1.5236

Md. Mominur Rahman, Kazi Bayzid Kabir

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引用次数: 13

Abstract

Paper sector in Bangladesh is currently expanding day-by-day to meet the increasing demand of industrial, writing/printing and specialty papers. Paper mills have adverse eects on the environment by producing huge quantity of wastewater. Yearly, approximately 14 million m 3 wastewater is being discharged to the surface water bodies and irrigated lands without no/limited treatment. Water pollution from pulp and paper mills can be minimized through proper effuent characterization and design of appropriate treatment facilities. In this article dierent techniques of wastewater treatment for paper mills are discussed. Case study based on treatability analysis and jar test for a paper mill producing 200 m 3 /h of effuent is provided. On the basis of the case study a simplified treatment process is proposed. Proper treatment of such mills would not only save our environment but can also be beneficial for the industries by water usage minimization. Keywords: Pulp and paper mills; recycled paper; imported pulp; environmental impact; wastewater characterization; wastewater treatment DOI = 10.3329/cerb.v14i1.5236 Chemical Engineering Research Bulletin 14 (2010) 65-68

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以再生纸/进口纸浆为原料的造纸厂的废水处理方案:孟加拉国的观点

孟加拉国的造纸部门目前正在日益扩大，以满足工业、书写/印刷和特种纸日益增长的需求。造纸厂产生大量的废水，对环境有不利的影响。每年，大约有1400万立方米的废水未经任何/有限处理而排入地表水和灌溉地。通过适当的废水特性和设计适当的处理设施，可以最大限度地减少纸浆和造纸厂的水污染。本文讨论了造纸厂废水处理的不同技术。以某造纸厂200 m3 /h出水为例，进行了可处理性分析和罐式试验。在实例研究的基础上，提出了一种简化的处理工艺。对这些工厂进行适当的处理不仅可以拯救我们的环境，而且可以通过减少用水对工业有益。关键词:制浆造纸厂;再生纸;进口纸浆;环境影响;废水特征;污水处理DOI = 10.3329/cerb.v14i1.5236化工研究通报14 (2010)65-68

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Chemical Engineering Research Bulletin

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