The current study presents a detailed evaluation and comparison between two integrated anaerobic–aerobic systems for biological wastewater treatment under equal conditions in all aspects (wastewater characteristics, climatic conditions, reactor sizing, even the measurement methods). examined are (i) hybrid upflow anaerobic sludge blanket (hybrid UASB) coupled with fixed-film activated (IFAS) (i...

in this study 100 cases of advanced periodontitis were compared with a control group of 100 persons. the parameters were the depth of the periodontal pockets, radiographic images, presence of inflammatory cells and different types of anaerobic bacteria in the pockets. the depth of pocket was measured by a sterile probe and the presence of inflammatory cells was determined through sterile curett...

This paper describes the principle and the technical details of a cheap titrimetric sensor for the measurements of total and partial alkalinity and the estimation of bicarbonate and volatile fatty acids concentrations in anaerobic digestion processes. The on-line operation of the sensor connected to a 1 m upflow fixed bed reactor treating raw industrial wine vinasses has been shown to be reliab...

The evidence for this scheme is : (a ) Washed suspensions of the organism grown on lactate attack, under anaerobic conditions, pyruvate, oxalacetate, L-malate, fumarate and succinate, but not D-tartrate. (b) Organisms grown on D-tartrate attack it and all the substances listed in (a ) except lactate. ( c ) Succinic acid is quantitatively decarboxylated to propionic acid and carbon dioxide. (d )...

background: in this study, the inhibition rate of different oil concentrations containing pcbs (1242 and 1254 pcb arochlors) on the anaerobic biomass was investigated by specific methanogenic activity using the vials with volume of 120 ml. methods: original samples were divided into two groups: with soil containing pcbs and without pcbs and the control samples in both cases were just contained ...

anaerobic digestion is a feasible technology to stabilize the solid waste generated inslaughterhouses obtaining significant quantities of biogas, considered as a clean and renewable fuel. this iswhy it is important to optimize the digestion process in order to eliminate organic matter and maximize theproduction of biogas. in this work, a system was developed for treating slaughterhouse solid wa...

please cite this article as: shafeian sh, bandehpour m, mirzaahmadi s, tofighi a. identification of anaerobic bacteria in patients with rheumatoid arthritis. . novel biomed 2013;1(2):39-42. background : there is a report about the 2-5% prevalence for septic arthritis by anaerobic bacteria. the relevance between synivitis and intestinal microbial flora has been a hypothesis for ten years. the pc...

enzymatic extract preparation from pseudomonas aeruginosa km110 under accession no. hq730879 with lipase activity (0.3 u/ml), was used to perform enzymatic hydrolysis pretreatment of a synthetic dairy wastewater with 1000 mg/l total fat content. the pretreatment was optimized for 48 h hydrolysis time, at 45æ% c with 10% v/v enzymatic extract. the biological treatment of synthetic dairy wastewat...