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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Controlling a toxic shock of pentachlorophenol (PCP) to anaerobic digestion using activated carbon addition
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Controlling a toxic shock of pentachlorophenol (PCP) to anaerobic digestion using activated carbon addition

机译：通过添加活性炭控制五氯苯酚（PCP）对厌氧消化的毒性休克

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Several powdered and granular activated carbons (PACs and GACs) were tested for adsorption of pentachlorophenol (PCP) in bench-scale anaerobic digestion reactors to control the toxicity of PCP to acetoclastic methanogenesis. Results showed that the adsorption capacities of PAC were reduced by 21-54%, depending on the PAC addition time, in the presence of the methanogenic sludge compared to the controls without sludge. As a preventive measure, PAC at a low dose of 20% (mass ratio to the VSS) added 24 h prior to, or simultaneously with, the addition of PCP could completely eliminate the toxic effects of PCP. At the same dose, PAC also enabled methanogenesis to recover immediately after the sludge had been exposed to PCP for 24 h. GAC was not effective in enabling the recovery of methanogenesis due to its slow adsorption kinetics; however, at a dose of 80% it could partially ameliorate the toxic shock of PCP. (C) 2015 Elsevier Ltd. All rights reserved.
机译：测试了几种粉末状和颗粒状活性炭（PAC和GAC）在台式厌氧消化反应器中对五氯苯酚（PCP）的吸附，以控制PCP对乙酰碎裂甲烷化的毒性。结果表明，与没有污泥的对照相比，在存在产甲烷污泥的情况下，取决于PAC的添加时间，PAC的吸附能力降低了21-54％。作为预防措施，在添加PCP之前或同时添加24小时以20％（相对于VSS的质量比）的低剂量PAC可以完全消除PCP的毒性作用。在相同剂量下，PAC还可以使污泥暴露于PCP 24 h后立即恢复甲烷生成。由于其缓慢的吸附动力学，GAC无法有效恢复甲烷生成。但是，以80％的剂量使用时，它可以部分缓解PCP的毒性休克。 （C）2015 Elsevier Ltd.保留所有权利。

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