Anaerobic sewage treatment: state of the art, constraints and challenges

Chernicharo, C. A. L.; Lier, Jules B. van; Noyola, A.; Bressani-Ribeiro, Thiago

doi:10.1007/s11157-015-9377-3

Cited by 222 publications

(152 citation statements)

References 106 publications

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“…Anaerobic digestion is already widely used in wastewater treatment because of its high organic load. It started being used more widely for this kind of treatment in the 1980s, when the first UASB reactors were developed [12]. The finding of this research that domestic wastewater is an important feedstock for biogas generation has also been reported elsewhere [13] [14].…”

Section: Wastewater Sludge and Sewagesupporting

confidence: 55%

Mapping of the Use of Waste as Raw Materials for Biogas Production

Grando¹,

Fonseca²,

Antunes³

2017

JEP

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Anthropic methane emissions can largely be prevented or minimized using technologies that are already available. One such technology is anaerobic digestion (AD), which is used commercially around the world, especially in Europe and the United States, where some challenging targets have been set to diversify the energy mix with more renewable energy. This foresight study was designed to identify which technological solutions out of the many options available for biogas production are attracting most interest, for which purpose patent documents and scientific publications were analyzed. The aim is to identify which raw materials are most attractive for AD and biogas production. It was found that the raw materials that have attracted most research and patenting activity are sludge, sewage, and wastewater, livestock waste, and agriculture waste, which together account for 62% of all the patents filed and 74% of all the scientific publications. The countries most engaged in producing biogas from AD plants are China, Germany, and the United States. We also identified a rising trend in the use of biogas around the world, and a steady increase in the number of patents filed on the subject, especially in Japan and South Korea. This growth is driven, amongst other things, by strategic governmental actions, global environmental pacts, and the realization on the part of industry that anaerobic digestion can be used as an efficient method for treating waste and effluents.

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Section: Wastewater Sludge and Sewagesupporting

confidence: 55%

Mapping of the Use of Waste as Raw Materials for Biogas Production

Grando¹,

Fonseca²,

Antunes³

2017

JEP

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“…In addition, a concept of wastewater-to-resource is receiving increased attention by researchers and engineers working on wastewater treatment technology development [3]. Therefore, it is highly desirable to select a sustainable, robust and cost-effective process for the treatment of decentralized domestic wastewater in developing countries [4].…”

Section: Introductionmentioning

confidence: 99%

Effect of Seasonal Temperature on the Performance and on the Microbial Community of a Novel AWFR for Decentralized Domestic Wastewater Pretreatment

Lü

2017

Applied Sciences

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Due to environmental burden and human health risks in developing countries, the treatment of decentralized domestic wastewater has been a matter of great concern in recent years. A novel pilot-scale three-stage anaerobic wool-felt filter reactor (AWFR) was designed to treat real decentralized domestic wastewater at seasonal temperature variations of 8 to 35 • C for 364 days. The results showed that the average chemical oxygen demand (COD) removal efficiencies of AWFR in summer and winter were 76 ± 7.2% and 52 ± 5.9% at one day and three days Hydraulic Retention Time (HRT), respectively. COD mass balance analysis demonstrated that even though COD removal was lower in winter, approximately 43.5% of influent COD was still converted to methane. High-throughput MiSeq sequencing analyses indicated that Methanosaeta, Methanobacterium, and Methanolinea were the predominant methanogens, whereas the genus Bacillus probably played important roles in fermentation processes throughout the whole operation period. The performance and microbial community composition study suggested the application potential of the AWFR system for the pretreatment of decentralized domestic wastewater.

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“…El MS que se deposita en los FB está conformado por sólidos que presentan alta porosidad y diversidad en su geometría (pueden ser circulares, cuadrados o rectangulares). Los microorganismos se adhieren en la superficie de éstos creando una película biológica [4][5][6]. Los primeros MS usados en los FB fueron rocas volcánicas, pero en investigaciones posteriores se aplicaron MS fabricados a fin de maximizar el área específica y así provocar la mayor adherencia de la masa microbiana.…”

Section: Introductionunclassified