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首页> 外文期刊>Journal of Environmental Science and Health >Factors affecting microwave-enhanced advanced oxidation process for sewage sludge treatment
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Factors affecting microwave-enhanced advanced oxidation process for sewage sludge treatment

机译：影响微波增强高级氧化工艺处理污泥的因素

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The microwave-enhanced advanced oxidation process (MW/H_2O_2-AOP) was applied to sewage sludge for nutrient solubilization and solids' disintegration. Four factors, temperature, hydrogen peroxide dosage, mixing, and solids concentration were chosen for a screening experiment, and were ranked according to their significance of influence on the process. In general, temperature and hydrogen peroxide dosage are the two significant factors affecting the process, while mixing is the least significant factor. Temperature was the most significant factor for the release of orthophosphate, and hydrogen peroxide dosage was most important in ammonia release. Solids disintegration, in terms of soluble chemical oxygen demand (SCOD), was largely dependent on temperature and hydrogen peroxide dosage. For volatile fatty acids (VFA) release, mixing was the most significant factor. At higher temperatures with mixing, more VFA was released into the headspace, resulting in less VFA retained in the solution. The best results of solids' disintegration and nutrient release were obtained at 120℃, and 0.80 g H_2O_2/g dry sludge.
机译：将微波增强的高级氧化工艺（MW / H_2O_2-AOP）应用于污水污泥中，以进行养分增溶和固体分解。选择了四个因素，即温度，过氧化氢用量，混合和固体浓度进行筛选实验，并根据它们对工艺的影响的重要性对其进行排序。通常，温度和过氧化氢剂量是影响该过程的两个重要因素，而混合是最不重要的因素。温度是释放正磷酸盐的最重要因素，而过氧化氢的添加量在释放氨中最为重要。就可溶性化学需氧量（SCOD）而言，固体崩解在很大程度上取决于温度和过氧化氢的用量。对于挥发性脂肪酸（VFA）的释放，混合是最重要的因素。在较高温度下混合时，更多的VFA释放到顶部空间，导致溶液中保留的VFA减少。在120℃和0.80 g H_2O_2 / g干污泥下，固体的分解和养分释放效果最好。

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