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Ultrasound sludge

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https://www.readbyqxmd.com/read/29162403/cope-s-sign-and-complete-heart-block-in-a-78-year-old-patient-with-biliary-colic
#1
Panteleimon E Papakonstantinou, Natalia I Asimakopoulou, Emmanuel Kanoupakis, Spyridon Maragkoudakis, Simeon Panagiotakis, Achilleas Gikas
INTRODUCTION: Acute cholecystitis and biliary colic may have signs and symptoms similar to those of Acute Coronary Syndrome(ACS) along with ischemic ECG changes. Cholecystitis and/or biliary colic have been both reported as trigger factors for bradyarrhythmia in the literature. CASE REPORT: A 78-year-old male patient was admitted to our Emergency Department (ED) due to acute abdominal pain. The ECG on admission showed sinus bradycardia with a rate of 40 beats per minute (bpm) without signs of acute ischemia and a brief period (7 s) of complete atrioventricular (AV) block...
November 18, 2017: International Emergency Nursing
https://www.readbyqxmd.com/read/29107225/removal-of-polycyclic-aromatic-hydrocarbons-pahs-from-textile-dyeing-sludge-by-ultrasound-combined-zero-valent-iron-edta-air-system
#2
Xiaoyuan Man, Xun-An Ning, Haiyuan Zou, Jieying Liang, Jian Sun, Xingwen Lu, Jiekui Sun
This paper proposes a combined ultrasound (US) and zero-valent iron/EDTA/Air (ZEA) system to remove polycyclic aromatic hydrocarbons (PAHs) from textile dyeing sludge. The removal efficiencies of 16 PAHs using ZEA, US/Air (air injected into the US process), and US/ZEA treatments were investigated, together with the effects of various operating parameters. The enhanced mechanisms of US and the role of reactive oxygen species (ROS) in removing PAHs in the US/ZEA system were explored. Results showed that only 42...
October 9, 2017: Chemosphere
https://www.readbyqxmd.com/read/29094440/prospective-evaluation-of-abdominal-ultrasonographic-findings-in-35-dogs-with-leptospirosis
#3
Juliette Sonet, Anthony Barthélemy, Isabelle Goy-Thollot, Céline Pouzot-Nevoret
Despite the emergence of new serovars, a detailed and current abdominal ultrasonographic description of dogs with leptospirosis is lacking. The purpose of this prospective, observational, single cohort study was to illustrate abdominal ultrasonographic findings in 35 dogs with confirmed leptospirosis. At least one ultrasonographic abnormality was seen in all of the dogs. Ultrasound renal abnormalities were found in all the dogs and included increased renal cortical echogenicity (100%), increased medullary echogenicity (86%), reduced corticomedullary definition (80%), cortical thickening (74%), renomegaly (60%), pelvic dilation (31%), and medullary band (14%)...
November 1, 2017: Veterinary Radiology & Ultrasound
https://www.readbyqxmd.com/read/29073580/facile-synthesis-and-characterisation-of-alns-using-protein-rich-solution-extracted-from-sewage-sludge-and-its-application-for-ultrasonic-assisted-dye-adsorption-isotherms-kinetics-mechanism-and-rsm-design
#4
Anu Mary Ealias, M P Saravanakumar
Protein Rich Solution (PRS) was prepared from the sewage sludge with ultrasonic assistance. With PRS, aluminium based nanosheet like materials (AlNs) were synthesised for the ultrasonic removal of Congo Red (CR) and Crystal Violet (CV) dyes. PRS was characterised by UV, EEM and NMR spectral analysis. AlNs were characterised by FTIR, XRD, TGA, BET, SEM, AFM, TEM and XPS analysis. The point of zero charge of AlNs was found to be 5.4. The BET analysis ensured that the average pore diameter and total pore volume of AlNs as 8...
October 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28984361/contrast-enhanced-ultrasound-examination-of-the-gallbladder-and-bile-ducts-a-pictorial-essay
#5
Demosthenes D Cokkinos, Eleni G Antypa, Sofia Tsolaki, Maria Skylakaki, Alkmini Skoura, Vassiliki Mellou, Ioannis Kalogeropoulos
The gallbladder and bile ducts are usually assessed initially with conventional gray-scale ultrasound (US). Contrast enhanced US (CEUS) is used when a diagnosis cannot be reached with conventional US. CEUS is easy to learn and perform. US contrast agents can be safely administered in patients with renal function impairment. In this pictorial essay the physics, examination technique and indications of CEUS for examining the gallbladder and bile ducts are reviewed. Gallbladder indications include elucidating normal variants, differentiating sludge from neoplastic lesions, benign and malignant pathology, infection, wall rupture and hemobilia...
October 6, 2017: Journal of Clinical Ultrasound: JCU
https://www.readbyqxmd.com/read/28950207/sludge-treatment-by-integrated-ultrasound-fenton-process-characterization-of-sludge-organic-matter-and-its-impact-on-pahs-removal
#6
Yaowei Ke, Xun-An Ning, Jieying Liang, Haiyuan Zou, Jian Sun, Hualing Cai, Meiqing Lin, Ruijing Li, Yaping Zhang
In this work, the impact of organic matter on the degradation of polycyclic aromatic hydrocarbons (PAHs) in textile dyeing sludge by ultrasound-Fenton process has been studied. Sludge organic matter (SOM) was characterized and the degradation efficiencies of PAHs at various oxidation intensities (Fenton's reagent of 20, 70, and 140mmol/L, ultrasonic densities of 0.36, 0.90, and 1.80W/cm(3), and reaction time of 15, 25, and 40min) were determined. The results showed that 75.52-84.40% of PAHs and 16.32-31.13% of SOM had degraded after ultrasound-Fenton treatment, confirming the competitive relation between both of them for degradation...
September 19, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28946434/conditioning-of-sewage-sludge-via-combined-ultrasonication-flocculation-skeleton-building-to-improve-sludge-dewaterability
#7
Cheng Zhu, Panyue Zhang, Hongjie Wang, Jie Ye
Strong water trapping ability of polyelectrolyte flocculated sludge and high compressibility of sludge filter cake greatly hindered the further improvement of sludge dewaterability. Ultrasound (US) was used to strip the water from the sludge flocs through sludge disintegration, traditional cationic polyacrylamide (CPAM) was applied to reconstruct the sludge aggregates through flocculation, and rice husk (RH) was utilized to improve the permeability of sludge filter cake as skeleton builders in this paper. The feasibility of combined US-CPAM-RH sludge conditioning was demonstrated, and single and co-conditioning processes were compared to explore the synergetic effect and mechanisms of US-CPAM-RH sludge conditioning...
January 2018: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28840272/the-utility-of-hepatic-artery-velocity-in-diagnosing-patients-with-acute-cholecystitis
#8
Thomas W Loehfelm, Justin R Tse, R Brooke Jeffrey, Aya Kamaya
PURPOSE: To test the diagnostic performance of elevated peak systolic hepatic arterial velocity (HAv) in the diagnosis of acute cholecystitis. METHODS: 229 patients with an ultrasound (US) performed for right upper quadrant (RUQ) pain were retrospectively reviewed. 35 had cholecystectomy within 10 days of ultrasound and were included as test subjects. 47 had normal US and serology and were included as controls. Each test patient US was reviewed for the presence of gallstones, gallbladder distention, sludge, echogenic pericholecystic fat, pericholecystic fluid, gallbladder wall thickening, gallbladder wall hyperemia, and reported sonographic Murphy sign...
August 24, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28831268/a-prospective-study-of-the-association-between-sickle-cell-disease-and-hepatobiliary-effects-in-bahrain
#9
Maheeba A M Abdulla, Fajer Juma Almoosa, Rana Juma Almoosa, Jehad Al Qamish
BACKGROUND: Sickle cell disease is a genetic disorder that leads to abnormally high levels of hemoglobin sickling in erythrocytes. Patients suffer debilitating and severe complications that affect multiple organs, though mainly the liver, gallbladder, spleen, bones, and kidneys. It has a significant impact on morbidity and mortality rates and is associated with substantial health care costs. METHODS: For this study, the researchers prospectively reviewed the charts of 154 sickle cell disease patients who had been treated in Salmaniya Medical Complex hospital in Bahrain between September 2013 and December 2014...
2017: International Journal of General Medicine
https://www.readbyqxmd.com/read/28809953/monitoring-health-and-reproductive-status-of-olms-proteus-anguinus-by-ultrasound
#10
Susanne Holtze, Maja Lukač, Ivan Cizelj, Frank Mutschmann, Claudia Anita Szentiks, Dušan Jelić, Robert Hermes, Frank Göritz, Stanton Braude, Thomas Bernd Hildebrandt
The olm (Proteus anguinus) is a troglomorphic, neotenous amphibian with extraordinary life expectancy and unique adaptations that deserve further investigation. A low reproductive rate and habitat decline render it threatened by extinction. Establishing captive populations for maintenance and artificial breeding may one day become crucial to the species. Longitudinal, in-vivo assessment of inner organs is invaluable to our understanding of reproductive physiology, health, and behavior. Using ultrasound, we measured heart rate and assessed health and reproductive status of 13 captive olms at Zagreb Zoo...
2017: PloS One
https://www.readbyqxmd.com/read/28772642/improvement-of-sludge-dewaterability-by-ultrasound-initiated-cationic-polyacrylamide-with-microblock-structure-the-role-of-surface-active-monomers
#11
Chuanliang Zhao, Huaili Zheng, Li Feng, Yili Wang, Yongzhi Liu, Bingzhi Liu, Badradine Zakaria Djibrine
Cationic polyacrylamides have been employed widely to improve sludge dewatering performance, but the cationic units are randomly distributed in the molecular chain, which restricts the further enhancement of dewaterability. Common template technology to prepare block copolymers requiring a huge number of templates reduces the polymer purity and molecular weight. Here, we adopted the surface-active monomer benzyl dimethyl 2-(methacryloyloxy)ethyl ammonium chloride (BDMDAC) to synthesize cationic microblocky polyacrylamide initiated by ultrasound...
March 13, 2017: Materials
https://www.readbyqxmd.com/read/28761817/purely-ultrasonic-enzyme-extraction-from-activated-sludge-in-an-ultrasonic-cleaning-bath
#12
Mario Plattes, Christian Koehler, Tom Gallé
Enzymes are important in biological wastewater treatment systems, since they are responsible for breakdown of macro- and micropollutants, thereby making the pollutants available for metabolism. Enzyme activity has been investigated in particular in activated sludge processes, since the activated sludge technology is the most important and widely spread wastewater treatment technology used today. Various methods have been used to extract enzymes from activated sludge in order to measure their activity, these include stirring with additives like detergents and cation exchange resins, ultrasonication (with probes) and combinations of the three [1], [2], [3]...
2017: MethodsX
https://www.readbyqxmd.com/read/28647717/a-large-choledochocystolithiasis-mimicking-mirizzi-syndrome
#13
Mustafa Belal Hafeez Chaudhry, Muhammad Azeemuddin, Muhammad Rizwan Khan, Om Parkash
An 18-year-old man presented with spontaneous severe epigastric pain, progressing and radiating to back since 3 days. It was associated with epigastric tenderness, bilious vomiting and jaundice. He had been intermittently experiencing these symptoms for the last 1 year. No known comorbid. Ultrasound showed a poorly visualised heterogeneous focus at porta hepatis; considering poor visualisation, this might represent an enlarged calcified lymph node or cystic duct calculus causing extrinsic compression or a large sludge ball within the common bile duct (CBD), leading to dilatation of common hepatic duct and intrahepatic biliary system...
June 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28633861/optimization-of-magnetic-field-assisted-ultrasonication-for-the-disintegration-of-waste-activated-sludge-using-box-behnken-design-with-response-surface-methodology
#14
Su Guan, Feng Deng, Si-Qi Huang, Shu-Yang Liu, Le-Xian Ai, Pu-Ying She
This study investigated for the first time the feasibility of using a magnetic field for sludge disintegration. Approximately 41.01% disintegration degree (DD) was reached after 30min at 180mT magnetic field intensity upon separate magnetic field treatment. Protein and polysaccharide contents significantly increased. This test was optimized using a Box-Behnken design (BBD) with response surface methodology (RSM) to fit the multiple equation of the DD. The maximum DD was 43.75% and the protein and polysaccharide contents increased to 56...
September 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28623190/primary-tuberculosis-of-cystic-duct-lymph-node
#15
Aamir Ghazanfar, Afifa Asghar, Naqeeb Ullah Khan, Iram Hassan
Tuberculosis (TC) is very common and significant cause of morbidity and mortality worldwide. Isolated cystic duct lymph node TC cases without involvement of gallbladder are exceedingly rare. It is difficult to diagnose preoperatively because of lack of characteristic signs and symptoms of TC. We report a man aged 45 years who presented with right upper abdominal pain since 1week. It was associated with nausea and postprandial fullness. There was no evidence of jaundice and lymphadenopathy. Abdominal examination showed moderate right upper quadrant tenderness with positive Murphy's sign and splenomegaly but no signs of peritonism...
June 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28622653/surfactant-coupled-sonic-pretreatment-of-waste-activated-sludge-for-energetically-positive-biogas-generation
#16
U Ushani, J Rajesh Banu, K Tamilarasan, S Kavitha, Ick Tae Yeom
The objective of this study was to evaluate the effect of dioctyl sodium sulphosuccinate (DOSS, a surfactant) on lysis rate of sludge and specific energy required for sonic pretreatment of waste activated sludge (WAS). Different ultrasonic power levels, WAS concentrations, DOSS dosages, and specific energy levels were used to compare pretreatment efficiencies. At an optimum time of 10min with ultrasonic power level of 160W, DOSS coupled sonic pretreatment resulted in better lysis rate (24.7%) of sludge than sonic pretreatment (17...
October 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28601033/comparing-glow-discharge-plasma-and-ultrasound-treatment-for-improving-aerobic-respiration-of-activated-sludge
#17
Nina Van de Moortel, Rob Van den Broeck, Jan Degrève, Raf Dewil
In this paper, a new and innovative technique, glow discharge plasma, is introduced for the treatment of activated sludge, whereby its effect on sludge solubilization, settleability, floc structure and biomass activity for carbon removal and nitrification is investigated. The obtained results are compared to the use of ultrasound for activated sludge treatment, a technique known for its potential to enhancing biomass activity. Results indicate that ultrasound is up to 9 times more efficient in solubilizing activated sludge and disrupting the sludge floc...
October 1, 2017: Water Research
https://www.readbyqxmd.com/read/28586609/comparison-of-ultrasound-evaluation-of-patients-of-obstructive-jaundice-with-endoscopic-retrograde-cholangio-pancreatography-findings
#18
Syed Zea-Ul-Islam Farrukh, Arif Rasheed Siddiqui, Syed Afzal Haqqi, Asif Jan Muhammad, Abdul Samad Dheddi, Saad Khalid Khalid
BACKGROUND: Ultrasonography has proven to be quite effective in differentiating hepatocellular from obstructive cause of jaundice in various studies. This study was conducted with the aim to determine the efficacy of ultrasonography and Endoscopic Retrograde Cholangio-Pancreatography (ERCP) in the diagnosis of obstructive reason of jaundice. METHODS: In this descriptive case series, 200 patients with >15 years age of either gender with cholestatic liver enzymes were included, i...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28578813/multiclass-method-for-the-determination-of-pharmaceuticals-and-personal-care-products-in-compost-from-sewage-sludge-using-ultrasound-and-salt-assisted-liquid-liquid-extraction-followed-by-ultrahigh-performance-liquid-chromatography-tandem-mass-spectrometry
#19
A Luque-Muñoz, J L Vílchez, A Zafra-Gómez
An analytical method for the analysis of 16 pharmaceuticals and personal care products in compost from sewage sludge is successfully validated. Ultrasound assisted extraction with a mixture of acetonitrile:ethyl acetate (1:1, v/v) containing 10% (v/v) of acetic acid was carried out. Two cycles of extraction of 10min were applied. A clean-up of the extracts using salt-assisted liquid-liquid extraction (SALLE) was also included. Experimental design was used for the optimization of the main parameters involved in the extraction and cleaned-up steps...
July 21, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28550728/quantification-of-nitrous-oxide-in-wastewater-based-on-salt-induced-stripping
#20
Pascal Kosse, Manfred Lübken, Torsten C Schmidt, Marc Wichern
Monitoring nitrous oxide (N2O) emissions from wastewater treatment plants has attracted much attention in recent years demanding accurate and rapid quantification methods. In the present study a salt-assisted methodology is proposed by which N2O is chemically stripped out from wastewater and quantified by gas chromatography (GC-TCD) subsequently. Eight different inorganic salts have been evaluated for this purpose, likewise the application of ultrasound. By addition of sodium bromide (NaBr) the best recovery rate of about 98% (=1...
December 1, 2017: Science of the Total Environment
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