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Synthesis and characterization of activated carbon and bioactive adsorbent produced from paper mill sludge

机译：造纸污泥产生的活性炭和生物活性吸附剂的合成与表征

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Adsorption capacity and bioactivity of a novel mesoporous activated carbon (IIT Carbon) and bioactive (BAC_(IIT)) catalyst produced from papermil slude were evaluated. Conversion of aper mill sludge to useful activated carbons and biocatalysts is a significant process since itreduces environmental problems associated with disposal of waste sludge, enhances wastewater treatment using carbons produced from industrial waste itself, and promotes conservation of the naturally a available primary resources currently used to make activated carbons. Analysis was conducted reference carbon). Phenol removal was accomplished in batch and fluidized bed rectors containing mesoporous activated carbon, sorbonorite 4, and the produced bioactive catalysts. Isotherm adsorption data indicated that mesoporous activated carbon has a higher adsorption capacity and molecular surface coverage than sorbonorite 4 for phenol concentrations less than 10 mg/l. The mass transfer limitation was accounted for the lower adsorption capacity of the microprous carbon (sorbonorite 4) in dilute solutions. The fluidized bed reactor study, however, indicated similar but slightly lower phenol removal capability for the produced mesoporous carbon. While phenol removal eficiency of the carbons studied was in the range 65-70%, the produced bioactive catalysts were able to remove up to 97% of phenol during first few fhours of operation. These results suggest that mesoporous carbon will feasibly be a good substitute for other commercially available activated carbons proudced from natural resources, not only in physical adsorption processes, but also in fluidized bed bioreactors (FBB), used in biodegradation processes.
机译：评估了新型的介孔活性炭（IIT碳）和由papermil slude生产的生物活性（BAC_（IIT））催化剂的吸附能力和生物活性。将Aper Mill污泥转化为有用的活性炭和生物催化剂是一个重要的过程，因为它减少了与废物污泥处置相关的环境问题，增强了利用工业废物本身产生的碳进行废水处理的能力，并促进了对自然可利用的主要自然资源的保护。制作活性炭。分析进行了参考碳）。在分批和流化床的精馏塔中完成苯酚的去除，该精馏塔包含中孔活性炭，山梨石4和生产的生物活性催化剂。等温线吸附数据表明，对于苯酚浓度小于10 mg / l的中孔活性炭，其吸附能力和分子表面覆盖率均高于sorbonorite 4。传质限制是由于稀溶液中微量碳（山梨石4）的较低吸附能力所致。然而，流化床反应器研究表明，对于生产的中孔碳，苯酚的去除能力相似但略低。尽管所研究的碳的苯酚去除效率在65-70％的范围内，但生产的生物活性催化剂能够在运行的最初几个小时内去除多达97％的苯酚。这些结果表明，介孔碳将可能很好地替代以自然资源引以为豪的其他市售活性炭，不仅在物理吸附过程中，而且在生物降解过程中使用的流化床生物反应器（FBB）中也是如此。

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