首页> 外文期刊>International journal of green energy >HYDROGEN SULFIDE REMOVAL FROM BIOGAS USING PURE AND MIXED CULTURES OF SULFIDE-OXIDIZING BACTERIA BIOFILTRATION
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HYDROGEN SULFIDE REMOVAL FROM BIOGAS USING PURE AND MIXED CULTURES OF SULFIDE-OXIDIZING BACTERIA BIOFILTRATION

机译:纯净和混和的硫化物氧化菌生物滤池混合培养法去除生物气中的硫化氢

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摘要

A novel biofiltration system using pure and mixed cultures of sulfide-oxidizing bacteria immobilized on granular activated carbon (GAC) to purify synthetic and real biogas from a sulfate reaction reactor of concentrated latex industry, contaminated by H_2S, was studied. Complete H_2S removal from synthetic biogas was found in pure and mixed culture reactors at 200 ppm initial H_2S concentration, 35 lh~(-1) of biogas flow rate and 5.83 lh~(-1) of airflow rate. H_2S removal using biofiUration had little effect on the methane content of synthetic biogas. Pure and mixed culture reactors at airflow rates of 0.75-5.83 l h~(-1) also showed complete H_2S removal from real biogas. However, H_2S removal efficiency at the airflow rate of 0.53 l h~(-1) decreased to 99%. Thus, H_2S removal using biofiUration had little effect on the methane content of real biogas. The results of this study suggest the feasibility of developing using mixed culture of sulfide-oxidizing bacteria from concentrated latex wastewater for industrial application to remove H_2S from biogas through biofiltration.
机译:研究了一种新型的生物过滤系统,该系统使用固定在颗粒状活性炭(GAC)上的硫化物氧化细菌的纯净和混合培养物,从H_2S污染的浓缩胶乳行业的硫酸盐反应器中纯化合成沼气和真实沼气。在纯混合培养反应器中,在200 ppm的初始H_2S浓度,35 lh〜(-1)的沼气流量和5.83 lh〜(-1)的空气流量下,从合成沼气中完全去除了H_2S。使用生物滤除H_2S对合成沼气的甲烷含量影响很小。气流速率为0.75-5.83 l h〜(-1)的纯培养和混合培养反应器也显示出从真实沼气中完全去除了H_2S。然而,在空气流量为0.53 l h〜(-1)时,H_2S的去除效率降至99%。因此,使用生物滤除H_2S对真实沼气的甲烷含量影响很小。这项研究的结果表明,发展利用浓缩乳胶废水中的硫化物氧化细菌的混合培养物进行工业应用以通过生物过滤去除沼气中的H_2S的可行性。

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