不同体积的厌氧微生物接种物对黑水生物降解和沼气生产的影响

IF 3.2 4区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY Journal of the Indian Chemical Society Pub Date : 2024-10-11 DOI:10.1016/j.jics.2024.101426
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引用次数: 0

摘要

肆意排放未经处理的黑水是亟待解决的环境问题之一,尤其是在许多发展中国家和第三世界国家。黑水富含有机化合物、氮和磷等元素以及有害的粪便大肠菌群,对环境构成了重大威胁。本研究侧重于使用室内厌氧微生物接种物处理黑水,重点是分散式处理系统。研究了不同数量的接种物(5%、10%、20% & 30%)对处理黑水的影响。记录了各种参数,如 pH 值、总固体(TS)、挥发性固体(VS)、化学需氧量(COD)和沼气产量。10 % 的接种物产生的沼气量最大。沼气量从 1046 毫升到 1180 毫升不等,具体取决于使用新鲜接种物或适应性旧接种物进行的实验。接种物还可重复用于持续的生物降解和沼气生产过程,这使其使用更经济,也更适合用作分散式处理过程中反应器的接种物。在这项工作中,我们还尝试让较大和较重的固体沉降,以减少通过接种物本身输入的化学需氧量。尽管如此,从沼气生产和化学需氧量去除的角度来看,10% 的全接种物是最佳的工作接种物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Effect of varying volumes of anaerobic microbial inoculum on biodegradation and biogas production from black water
Unfettered discharge of untreated black water is one of the raging environmental issues which needs to be addressed especially in many developing and third-world countries. Black water is rich in organic compounds, elements such as nitrogen and phosphorous, and harmful faecal coliforms which makes it a major threat to the environment. The present study focuses on the use of an inhouse anaerobic microbial inoculum for the treatment of black water with an emphasis on decentralized treatment systems. The effects of varying volumes of inoculum (5 %, 10 %, 20 % & 30 %) for the treatment of black water was studied. Various parameters such as pH, total solids (TS), volatile solids (VS), chemical oxygen demand (COD) and biogas production were recorded. 10 % inoculum yielded the maximum amount of biogas. The biogas volume varied from 1046 mL–1180 mL depending on the experiments carried out using either fresh inoculum or acclimatized old inoculum. The inoculum could also be reused for sustained biodegradation and biogas production process which makes its use economic and apt as inoculum for reactors used in decentralized treatment processes. An attempt was also made in this work to reduce the input COD imparted via the inoculum itself by letting the larger and heavier solids to settle. Nevertheless, it was observed that the best working inoculum was the 10 % whole inoculum in terms of biogas production and COD removal.
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来源期刊
CiteScore
3.50
自引率
7.70%
发文量
492
审稿时长
3-8 weeks
期刊介绍: The Journal of the Indian Chemical Society publishes original, fundamental, theorical, experimental research work of highest quality in all areas of chemistry, biochemistry, medicinal chemistry, electrochemistry, agrochemistry, chemical engineering and technology, food chemistry, environmental chemistry, etc.
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