Satyawali Yamini, Pant Deepak, Singh Anoop, Srivastava R K
Department of Environmental Sciences, College of Basic Sciences and Humanities, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar-263 145, India.
J Environ Biol. 2009 Sep;30(5):667-72.
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 inoculum from the active cow dung biogas plant. After stabilization of the reactors the reduction in pollutant loading was found to be higher in UAFPBR than conventional anaerobic reactor (CAR). Hydraulic retention time (HRT) of 12 hr was optimum for the treatment of effluent when 74.5% COD and 81% BOD reduction was obtained. 30% inoculum concentration was best for the anaerobic treatment of RGP colour drain effluent. The maximum biogas production (1.37 l l(-1) of effluent) was when the effluent was inoculated with 30% seeding material. Thus, UAFPBR system was very efficient in terms of BOD, COD, TSS and TDS removal from RGP drain of paper mills in ambient environmental conditions.
对造纸厂的粘胶级纸浆（RGP）排水进行了研究，以通过低成本且高效的处理方法找出污染物负荷及其控制措施。为此，使用了以砖片作为填充材料的上流式厌氧固定填充床反应器（UAFPBR）。并将其与传统厌氧处理方法进行了比较。消化后的污泥取自活性牛粪沼气厂作为接种物。在反应器稳定后，发现UAFPBR中污染物负荷的降低比传统厌氧反应器（CAR）更高。当化学需氧量（COD）降低74.5%、生化需氧量（BOD）降低81%时，水力停留时间（HRT）为12小时是处理该废水的最佳时间。30%的接种物浓度最适合对RGP有色排水进行厌氧处理。当接种30%的接种材料时，沼气产量最高（每升废水产生1.37升沼气）。因此，在环境条件下，UAFPBR系统在去除造纸厂RGP排水中的BOD、COD、总悬浮固体（TSS）和总溶解固体（TDS）方面非常高效。
