keyword
MENU ▼
Read by QxMD icon Read
search

Start-up

keyword
https://www.readbyqxmd.com/read/28651323/effect-of-cellulose-as-co-substrate-on-old-landfill-leachate-treatment-using-white-rot-fungi
#1
A Bardi, Q Yuan, G Siracusa, I Chicca, M Islam, F Spennati, V Tigini, S Di Gregorio, D B Levin, G Petroni, G Munz
Conventional wastewater treatment technologies are ineffective for remediation of old LandFill Leachate (LFL), and innovative approaches to achieve satisfactory removal of this recalcitrant fraction are needed. This study focused on old LFL treatment with a selected fungal strain, Bjerkandera adusta MUT 2295, through batch and continuous tests, using packed-bed bioreactors under non-sterile conditions. To optimize the process performance, diverse types of co-substrates were used, including milled cellulose from beverage cups waste material...
June 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28651141/a-comparative-study-of-pilot-scale-bio-trickling-filters-with-counter-and-cross-current-flow-patterns-in-the-treatment-of-emissions-from-chemical-fibre-wastewater-treatment-plant
#2
Zhuhui Yang, Jia Liu, Jingyang Cao, Dinghe Sheng, Tingjian Cai, Jian Li
Two pilot-scale bio-trickling filters (BTFs) with counter-current and cross-current flow modes were constructed, and their performance tested, for purifying chemical fibre waste gas containing H2S, NH3 and VOCs with a maximum gas flow rate of 1008m(3)h(-1). The counter-current type of BTF presented with superior biodegradation results compared to the cross-current type: it could start up quickly, tolerated high transient shock loadings, and possessed an average contaminant removal efficiency higher than 90% with an empty bed residence time of 59s...
June 13, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28648745/batch-anaerobic-digestion-of-deproteinated-malt-whisky-pot-ale-using-different-source-inocula
#3
Raquel Barrena, Julio E Traub, Cristina Rodriguez Gil, Julian A S Goodwin, Alan J Harper, Nik A Willoughby, Antoni Sánchez, Thomas J Aspray
A novel process has been developed for the selective removal of protein from pot ale with recovered protein holding potential as a value-added by-product for the whisky industry. The purpose of this work was to assess the effect of deproteination on pot ale physicochemical characterisation and anaerobic digestion (AD) treatment. Pot ales were taken from five malt whisky distilleries and tested untreated, after centrifugation/filtration and after deproteination at laboratory or pilot scale. At laboratory scale, the deproteination process removed around 20% of total chemical oxygen demand (tCOD) from untreated pot ale and at least 30% dissolved copper from centrifuged pot ale...
June 22, 2017: Waste Management
https://www.readbyqxmd.com/read/28647320/an-integrated-aerobic-anaerobic-strategy-for-performance-enhancement-of-pseudomonas-aeruginosa-inoculated-microbial-fuel-cell
#4
Xiao-Yu Yong, Zhi-Ying Yan, Hai-Bo Shen, Jun Zhou, Xia-Yuan Wu, Li-Juan Zhang, Tao Zheng, Min Jiang, Ping Wei, Hong-Hua Jia, Yang-Chun Yong
Microbial fuel cell (MFC) is a promising device for energy generation and organic waste treatment simultaneously by electrochemically active bacteria (EAB). In this study, an integrated aerobic-anaerobic strategy was developed to improve the performance of P. aeruginosa-inoculated MFC. With an aerobic start-up and following an anaerobic discharge process, the current density of MFC reached a maximum of 99.80µA/cm(2), which was 91.6% higher than the MFC with conventional constant-anaerobic operation. Cyclic voltammetry and HPLC analysis showed that aerobic start-up significantly increased electron shuttle (pyocyanin) production (76% higher than the constant-anaerobic MFC)...
June 12, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28638368/impact-of-ferrous-iron-on-microbial-community-of-the-biofilm-in-microbial-fuel-cells
#5
Qian Liu, Bingfeng Liu, Wei Li, Xin Zhao, Wenjing Zuo, Defeng Xing
The performance of microbial electrochemical cells depends upon microbial community structure and metabolic activity of the electrode biofilms. Iron as a signal affects biofilm development and enrichment of exoelectrogenic bacteria. In this study, the effect of ferrous iron on microbial communities of the electrode biofilms in microbial fuel cells (MFCs) was investigated. Voltage production showed that ferrous iron of 100 μM facilitated MFC start-up compared to 150 μM, 200 μM, and without supplement of ferrous iron...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28633201/rapid-start-up-of-denitrifying-granular-sludge-by-dosing-with-semi-starvation-fluctuation-c-n-ratio-strategy
#6
Wenyu Niu, Jianbo Guo, Jing Lian, Yuanyuan Song, Caicai Lu, Haibo Li, Yi Han, Pengna Yin
This study cultivated denitrifying granular sludge in three UASB reactors by the semi-starvation fluctuation C/N ratio strategy (reactor 1 (R1): constant C/N ratio; R2: regular fluctuation C/N ratio; and R3: semi-starvation fluctuation C/N ratio (SSF)). Microbial aggregates appeared in R1, R2 and R3 on days 28, 14 and 6, respectively. Compared with the results in R1 and R2, the guanosine tetraphosphate (ppGpp) concentration was highest, the acyl homoserine lactones (AHLs) concentration quickly reached a certain threshold, and more protein (PN) of extracellular polymeric substances (EPS) secretion resulted in the rapid formation of denitrifying granular sludge in R3...
June 1, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28632188/smartphone-based-food-diagnostic-technologies-a-review
#7
REVIEW
Giovanni Rateni, Paolo Dario, Filippo Cavallo
A new generation of mobile sensing approaches offers significant advantages over traditional platforms in terms of test speed, control, low cost, ease-of-operation, and data management, and requires minimal equipment and user involvement. The marriage of novel sensing technologies with cellphones enables the development of powerful lab-on-smartphone platforms for many important applications including medical diagnosis, environmental monitoring, and food safety analysis. This paper reviews the recent advancements and developments in the field of smartphone-based food diagnostic technologies, with an emphasis on custom modules to enhance smartphone sensing capabilities...
June 20, 2017: Sensors
https://www.readbyqxmd.com/read/28624619/quorum-sensing-signals-enhance-the-electrochemical-activity-and-energy-recovery-of-mixed-culture-electroactive-biofilms
#8
Shanshan Chen, Xianyue Jing, Jiahuan Tang, Yanlun Fang, Shungui Zhou
The impacts of exogenous or endogenous quorum sensing (QS) signaling molecules on mixed-culture electroactive biofilms (EABs), especially extracellular polymeric substances (EPS) and exoelectrogens using direct electron transfer mechanism inside EABs are poorly understood. This research focuses on the influence of acylhomoserine lactones (AHLs), the most common QS signaling molecules for gram negative bacteria, on mixed-culture EABs. Results indicated that both exogenous and endogenous AHLs played the role as regulators to improve the electrochemical activities of EABs...
June 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28623933/transferring-research-from-a-university-to-the-united-kingdom-national-health-service-the-implications-for-impact
#9
Helen Payne
The aim of this article is to inform readers of the author's reflections on the experience of transferring university-based research into the commercial sector, and of the processes and strategies employed when preparing for impact in so doing. Concepts for the transfer are illustrated by the author's reflection on aspects that arose during the birthing and subsequent start-up of a university spin-off, Pathways2Wellbeing, a form of reflection-on-action. This is the vehicle for the adaption required to transfer research into the delivery of a specialised clinic in the United Kingdom National Health Service for people with medically unexplained, persistent, bodily symptoms such as fibromyalgia, chronic fatigue and chronic pain...
June 17, 2017: Health Research Policy and Systems
https://www.readbyqxmd.com/read/28617906/comprehensive-hearing-aid-intervention-at-a-free-subspecialty-clinic
#10
Aileen P Wertz, Gregory Mannarelli, Andrew G Shuman, Erin L McKean
Importance: Providing a model of a comprehensive free audiologic program may assist other health care professionals in developing their own similar program. Objective: To describe the structure, feasibility, and outcomes of a free subspecialty clinic providing hearing aids to develop a paradigm for other programs interested in implementing similar projects. Design, Setting, and Participants: A retrospective case series was conducted from September 1, 2013, through March 31, 2016...
June 15, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28593654/linkage-of-microbial-kinetics-and-bacterial-community-structure-of-mbr-and-hybrid-mbbr-mbr-systems-to-treat-salinity-amended-urban-wastewater
#11
Alejandro Rodriguez-Sanchez, Juan Carlos Leyva-Diaz, Alejandro Gonzalez-Martinez, Jose Manuel Poyatos
Three pilot-scale bioreactors were started up and operated under salinity-amended urban wastewater feeding. The bioreactors were configured as membrane bioreactor and two different hybrid, moving bed biofilm reactor-membrane bioreactor and operated with a hydraulic retention time of 9.5 h, a solid residence time of 11.75 days and a total solids concentration of 2500 mg L(-1) . The three systems showed excellent performance in suspended solids, BOD5 , and COD removal (values of 96-100%, 97-99%, and 88-90%, respectively), but poor nitrogen removal (values of 20-30%)...
June 8, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28580910/electron-bio-imaging-centre-ebic-the-uk-national-research-facility-for-biological-electron-microscopy
#12
Daniel K Clare, C Alistair Siebert, Corey Hecksel, Christoph Hagen, Valerie Mordhorst, Michael Grange, Alun W Ashton, Martin A Walsh, Kay Grünewald, Helen R Saibil, David I Stuart, Peijun Zhang
The recent resolution revolution in cryo-EM has led to a massive increase in demand for both time on high-end cryo-electron microscopes and access to cryo-electron microscopy expertise. In anticipation of this demand, eBIC was set up at Diamond Light Source in collaboration with Birkbeck College London and the University of Oxford, and funded by the Wellcome Trust, the UK Medical Research Council (MRC) and the Biotechnology and Biological Sciences Research Council (BBSRC) to provide access to high-end equipment through peer review...
June 1, 2017: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/28575838/biofilm-promoted-current-generation-of-pseudomonas-aeruginosa-microbial-fuel-cell-via-improving-the-interfacial-redox-reaction-of-phenazines
#13
Ya-Juan Qiao, Yan Qiao, Long Zou, Xiao-Shuai Wu, Jian-Hua Liu
Bacteria biofilm plays a key role in current generation of microbial fuel cells (MFCs), especially for the start-up stage. However, the detailed mechanism of the biofilm promoting the power generation is not very clear so far, especially for those exoelectrogens who rely on the self-excreted electron mediators for extracellular electron transfer. In this work, a biofilm formation inhibitor-sodium houttuyfonate (SH) is used to build a "non-biofilm" anode of Pseudomonas aeruginosa (P. aeruginosa) without affecting the bacteria growth during the MFC operation...
May 23, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/28572935/waffle-production-influence-of-batter-ingredients-on-sticking-of-fresh-egg-waffles-at-baking-plates-part-i-effect-of-starch-and-sugar-components
#14
Regina Huber, Regine Schoenlechner
Fresh egg waffles are a sweet convenience product typically baked from eggs, water, sugar, flour, fat, leavening agents, emulsifiers, preservatives, and flavors. In industrial production, waffles are baked continuously in high amounts of up to 200 kg raw material per hour. Therefore, it is important that the waffles do not stick onto the baking plates, which can cause significant product loss and increased costs due to interruption of the baking process, required cleaning procedures, and restarting of the energy-consuming start-up phase...
May 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28558348/a-pilot-scale-study-on-the-start-up-of-partial-nitrification-anammox-process-for-anaerobic-sludge-digester-liquor-treatment
#15
Gang Wang, Xiaochen Xu, Liang Zhou, Chao Wang, Fenglin Yang
Treatment of sludge digester liquor was successfully accomplished using a pilot-scale partial nitrification-anammox (PN/A) reactor with a nitrogen removal rate (NRR) of 1.23kgN/m(3)/d. A stable and efficient PN process was attained by controlling the concentration of free ammonia (0.7-8.4mg/L) and free nitrous acid (0.02-1.0mg/L). The application of hydroxylamine played a vital role in the reactivation of anammox bacteria. The bacteria exhibited improved granule properties at a specific input power between 0...
February 28, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28556613/scale-up-scale-down-of-microbial-bioprocesses-a-modern-light-on-an-old-issue
#16
Frank Delvigne, Henk Noorman
The bio-economy is in transit from innovation to commercialization. The bioprocess industry is expected to increasingly deliver bio-products to the market, in large amounts, at high quality and at competitive cost levels. This requires flawless start-up of new large-scale bioprocesses and continuous improvement of running processes. Fermentation scale-up and operation can benefit from recent advances in three areas: 1. computation-driven design of scale-down simulators, 2. omics-driven metabolic engineering and 3...
July 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28553322/the-reasons-for-end-to-side-coaptation-how-does-lateral-axon-sprouting-work
#17
REVIEW
Stefano Geuna, Igor Papalia, Giulia Ronchi, Francesco Stagno d'Alcontres, Konstantinos Natsis, Nikolaos A Papadopulos, Michele R Colonna
Nerve fibers are attracted by sutureless end-to-side nerve coaptation into the recipient nerve. Opening a window in the epineurium enhances axon attraction and myelination. The authors analyze the features of nerve repair by end-to-side coaptation. They highlight the known mechanisms of axon sprouting and different hypotheses of start up signals (presence or absence of an epineurial window, role of Schwann cells, signaling from the distal trunk). The clinical literature is also presented and differences between experimental and clinical applications are pointed out...
April 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28535492/impact-of-substrate-concentration-on-anammox-ubf-reactors-start-up
#18
Yujie Qin, Bin Han, Yan Cao, Tongyu Wang
Two up-flow blanket filter (UBF) reactors were employed to treat synthetic wastewater with different substrate concentrations and nitrogen load rates (NLR) for 178days. During days 0-60, higher influent NLR of R2 (0.21-0.58kg·m(3)·d) slowed down the formation of anammox sludge compared with the lower NLR of R1 (0.18-0.31kg·m(3)·d). Difference in sludge color and nitrogen conversion rate indicated greater anammox activity of R2 than R1. During days 61-178, R1 and R2 achieved the maximum nitrogen removal rates (NRR) of 1...
September 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28531859/the-role-of-conductive-materials-in-the-start-up-period-of-thermophilic-anaerobic-system
#19
Wangwang Yan, Nan Shen, Yeyuan Xiao, Yun Chen, Faqian Sun, Vinay Kumar Tyagi, Yan Zhou
The major obstacle for thermophilic anaerobic digestion (TAD) is the inhibited microorganism activity and process instability during the start-up period. This study proposed a strategy to accelerate and stabilize the thermophilic reactors start-up via adding conductive materials. The results show that methane production rate in conductive materials supplemented (CMS) reactors was almost two times higher than the control reactors. Caloramator sp., a candidate of electroactive bacteria, was significantly enriched in the carbon nano-tube (CNT) supplemented groups (12...
September 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28529821/fabrication-of-silicon-films-from-patterned-protruded-seeds
#20
Huang Zeng, Wei Zhang, Jizhou Li, Cong Wang, Hui Yang, Yigang Chen, Xiaoyuan Chen, Dongfang Liu
Thin, flexible silicon crystals are starting up applications such as light-weighted flexible solar cells, SOI, flexible IC chips, 3D ICs imagers and 3D CMOS imagers on the demand of high performance with low cost. Kerfless wafering technology by direct conversion of source gases into mono-crystalline wafers on reusable substrates is highly cost-effective and feedstock-effective route to cheap wafers with the thickness down to several microns. Here we show a prototype for direct conversion of silicon source gases to wafers by using the substrate with protruded seeds...
May 2017: AIP Advances
keyword
keyword
56178
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"