Performance of a biotrickling filter for the anaerobic utilization of gas-phase methanol coupled to thiosulphate reduction and resource recovery through volatile fatty acids production

Eregowda, Tejaswini; Matanhike, Luck; Rene, Eldon R.; Lens, Piet N.L.

doi:10.1016/j.biortech.2018.04.095

Cited by 14 publications

(3 citation statements)

References 42 publications

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“…The pulp industry also produces thermomechanical pulping wastewaters that are released at high temperatures (50-80°C). Conversion of methanol from condensates to VFA has been reported with an acetogenic culture in an up-flow anaerobic sludge bed reactor (Eregowda et al 2018). Thermomechanical pulping wastewater, on the other hand, has been anaerobically converted to hydrogen at 70°C with a culture dominated by Thermoanaerobacterium sp.…”

Section: Technologies and Productsmentioning

confidence: 99%

A review of nature-based solutions for resource recovery in cities

Kisser¹,

Wirth²,

Gusseme

et al. 2020

Blue-Green Systems

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Our modern cities are resource sinks designed on the current linear economic model which recovers very little of the original input. As the current model is not sustainable, a viable solution is to recover and reuse parts of the input. In this context, resource recovery using nature-based solutions (NBS) is gaining popularity worldwide. In this specific review, we focus on NBS as technologies that bring nature into cities and those that are derived from nature, using (micro)organisms as principal agents, provided they enable resource recovery. The findings presented in this work are based on an extensive literature review, as well as on original results of recent innovation projects across Europe. The case studies were collected by participants of the COST Action Circular City, which includes a portfolio of more than 92 projects. The present review article focuses on urban wastewater, industrial wastewater, municipal solid waste and gaseous effluents, the recoverable products (e.g., nutrients, nanoparticles, energy), as well as the implications of source-separation and circularity by design. The analysis also includes assessment of the maturity of different technologies (technology readiness level) and the barriers that need to be overcome to accelerate the transition to resilient, self-sustainable cities of the future.

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Section: Technologies and Productsmentioning

confidence: 99%

A review of nature-based solutions for resource recovery in cities

Kisser¹,

Wirth²,

Gusseme

et al. 2020

Blue-Green Systems

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“…Meanwhile, the high chemical oxygen demand, dissolved salts content and micro-pollutant make certain biogenic wastes difficult to be handled by the conventional biological approach. New and more integrated anaerobic treatments for biogas production and material recycling may thereby need to be considered and evaluated [161][162][163][164][165][166][167][168][169][170][171][172][173]. It is firmly believed by the authors that, due to the large volume and heterogeneity of waste produced, from both an economical and technological point of view, the best solution for organic wastes does not always lie in the choice and implementation of a single or typical process technology.…”

Section: Waste Valorizationmentioning

confidence: 99%

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Tsui

Wong

2019

Waste Dispos. Sustain. Energy

145

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Municipal solid waste (MSW) management has emerged as probably the most pressing issue many governments nowadays are facing. Traditionally, Waste-to-Energy(WtE) is mostly associated with incineration, but now, with the emergence of the bioeconomy, it embraces a broader definition comprising any processing technique that can generate electricity/heat or produce a waste-derived fuel. Under the ambit of the circular economy many nations are looking for, additional effort must be made to be sure of acquiring the most updated information and paving a sustainable path for managing MSW in such a frame. In this regard, we have undertaken a critical review of various technologies, with their updated progress, involved in the exploitation of MSW as a renewable resource, along with the critical advantages and limitations on energy and material cycling for sustainable MSW management. Incineration, the most widely used method, is nowadays difficult to further apply due to its dubious reputation and social opposition. Meanwhile, to address the organic fraction of MSW which currently is mostly unrecycled and causes disposal issues, the biological approach presents an attractive option. The new emphasis of bioeconomy leads us to understand how environmental biotechnologies should be better connected/integrated for more sustainable MSW management. This article is concluded with advances of future prospects, which can serve as a timely reminder to encourage competent authorities/researchers to work towards further improvement of the present MSW management system.

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“…Polyurethane foams (PUFs) cubes of size 8 cm 3 were used as the packing material. The porosity and density of the PUFs were 98% and 28 kg/m 3 , respectively (Eregowda et al, 2018). PUFs were autoclaved for 15 min, at 121 °C in order to provide the sterile conditions.…”

Section: Anoxic Biotrickling Filter (Btf) Set Up and Operationmentioning

confidence: 99%

Hydrogen sulfide removal by nitrate reducing and sulfide oxidizing bacteria in anoxic bioreactors

Watsuntorn

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The ?strain MAL 1HM19, a nitrate reducing and sulfur oxidizing bacteria (NR-SOB) was successfully isolated from Mae Um Long Luang hot spring from Mae Hong Son province (Thailand) using hydrogen sulfide (H2S) and nitrate (NO3-) as an electron donor and acceptor, respectively. Among the isolates of NR-SOB from different sources, the strain MAL 1HM19 was the most promising novel strain of NR-SOB because of its ability to yield ~100% H2S removal, under anoxic conditions, within 5.5 h at an initial H2S concentration of 650 ppmv. The identification of strain MAL 1HM19 based on the 16S rDNA nucleotide sequence suggests that this strain is closely related to Paracoccus versutus and is the member of Alphaproteobateria with 99.93% sequence similarity. The P. versutus strain MAL 1HM19 was also able to grow at various NaCl concentrations (0.03-7%), in a pH range of 7.0-9.0 and at temperatures of 20-50?C. The ability of H2S removal by the P. versutus strain MAL 1HM19 under the influence of different initial NO3--N concentrations (60, 120 and 240 mg NO3--N/L), at 35?C, was investigated for 96 h. The results showed that 100% of H2S oxidation was attained within 10 h, irrespective of the different initial NO3--N concentrations. The final end product [sulfate (SO42-) or elemental sulfur (S?)] depended on the concentrations of NO3--N. In the long-term experiments, i.e. in a biotrickling filter (BTF), biological H2S removal was investigated by inoculating the pure cultures of P. versutus strain MAL 1HM19 in anoxic BTF for 188 d. The BTF was packed with polyurethane foams (PUFs) cubes and the reactor was operated under anoxic conditions in both fed-batch and continuous modes. The H2S inlet concentrations were varied between 100 and 500 ppmv during steady-state experiments, while during H2S shock load tests, the concentrations were increased to 1000, 2000, 3000 and 4000 ppmv, respectively. The removal efficiency (RE) of H2S varied between 17 and 100% depending on operational mode of the BTF and the addition of the C source. The maximum elimination capacity (ECmax) was achieved at 121.83 ? 0.1 g S/m3 h (RE - 96.5 %) during H2S shock load experiments at 4000 ppmv. The results from this study demonstrated that both free and immobilized cells of P. versutus strain MAL 1HM19 can be efficiently used in industrial situations to remove H2S and NO3- under a wide range of operating conditions.

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Performance of a biotrickling filter for the anaerobic utilization of gas-phase methanol coupled to thiosulphate reduction and resource recovery through volatile fatty acids production

Cited by 14 publications

References 42 publications

A review of nature-based solutions for resource recovery in cities

A review of nature-based solutions for resource recovery in cities

A critical review: emerging bioeconomy and waste-to-energy technologies for sustainable municipal solid waste management

Hydrogen sulfide removal by nitrate reducing and sulfide oxidizing bacteria in anoxic bioreactors

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