两相厌氧工艺处理草浆黑液甲烷相动力学模型

Kinetic Models of Methane Phase in Two-Phase Anaerobic Digestion Process for Treating Black Liquor

两相厌氧工艺处理草浆黑液，对甲烷相进行动力学分析。结果表明：经过修正的Ｍｏｎｏｄ方程能够描述甲烷相基质降解规律。当酸化相进水ＣＯＤ为７６６１～１２９５８ｍｇ／Ｌ，甲烷相进水（酸化相出水）ＣＯＤ为５３１２～８９５７ｍｇ／Ｌ时，由模型计算得难厌氧降解物质（ＣＯＤ）为１２１２ｍｇ／Ｌ。由此得出，在该实验条件下甲烷相ＣＯＤ的最大去除率为８６４７％

Black liquor of straw pulp was treated in two-phase anaerobic digestion process.After biokinetic analysis of experimental data,the results showed that the modified Monod Equation could be used to describe the substrate degradation process in the methane phase.The concentration of nonbiodegradable materials (COD) was 1212 mg/L from the model when the COD of influent in acidification phase was 766112958mg/L and the COD of influent in methane phase or the effluent in acidification phase was 53218957mg/L.Maximum COD removal efficiency was 8647% in methane phase at similar conditions of experiments.