Biological elimination of dilute methane through multi-channel Taylor flow capillary bioreactors

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2025-03-24 DOI:10.1016/j.jwpe.2025.107531

Norbertus J.R. Kraakman, Sergio Bordel, Raquel Lebrero, Raúl Muñoz

{"title":"Biological elimination of dilute methane through multi-channel Taylor flow capillary bioreactors","authors":"Norbertus J.R. Kraakman, Sergio Bordel, Raquel Lebrero, Raúl Muñoz","doi":"10.1016/j.jwpe.2025.107531","DOIUrl":null,"url":null,"abstract":"<div><div>Elimination of dilute methane (<5 % v/v) was investigated in several multi-channel capillary bioreactor configurations and evaluated for operating conditions and parameters relevant to long-term reliable performance. Although all reactors showed a high methane removal capacity, the addition of only surfactant or only silicone oil did not show enhancement in methane removal. The capillary bioreactor containing both silicone oil (up to 20 % v/v, 20 cSt) and surfactant (BRIJ 58) treated methane with very high elimination capacities of >200 g per m<sup>3</sup> internal capillary channel per hour at gas contact times around 30 s, which is one order of magnitude lower than gas contact times of conventional biological gas treatment methods. No accumulation of biomass on the walls of capillary channels was observed during the 300 days of operation. Internal gas recirculation was applied to decouple gas-liquid turbulence conditions from the actual gas retention time. This work revealed that a capillary bioreactor can be a useful platform for the abatement of dilute methane emissions.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107531"},"PeriodicalIF":6.3000,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714425006038","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Elimination of dilute methane (<5 % v/v) was investigated in several multi-channel capillary bioreactor configurations and evaluated for operating conditions and parameters relevant to long-term reliable performance. Although all reactors showed a high methane removal capacity, the addition of only surfactant or only silicone oil did not show enhancement in methane removal. The capillary bioreactor containing both silicone oil (up to 20 % v/v, 20 cSt) and surfactant (BRIJ 58) treated methane with very high elimination capacities of >200 g per m³ internal capillary channel per hour at gas contact times around 30 s, which is one order of magnitude lower than gas contact times of conventional biological gas treatment methods. No accumulation of biomass on the walls of capillary channels was observed during the 300 days of operation. Internal gas recirculation was applied to decouple gas-liquid turbulence conditions from the actual gas retention time. This work revealed that a capillary bioreactor can be a useful platform for the abatement of dilute methane emissions.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies