نتایج جستجو برای: organic loading rates olr
تعداد نتایج: 698984 فیلتر نتایج به سال:
The aim of this study was to determine level of serum IgA, IgG and IgM in patients with OLR as indicators of humoral immunity which might reflect cell-mediated immunity. This study was conducted on 30 patients (age 60.17 +/- 11.75) with clinically and histopathologically confirmed diagnosis of OLR and 30 healthy controls (age 56.16 +/- 11.82) Determination of serum IgA, IgG and IgM was performe...
Anaerobic fluidized membrane bioreactors (AFMBRs) have been mainly developed as a post-treatment process to produce high quality effluent with very low energy consumption. The performance of an AFMBR was examined using the effluent from a microbial fuel cell (MFC) treating domestic wastewater, as a function of AFMBR hydraulic retention times (HRTs) and organic matter loading rates. The MFC-AFMB...
The simultaneous removal of formaldehyde and ammonium in a lab-scale activated sludge unit was investigated. The unit was operated at a hydraulic retention time of 2.4 days with an ammonium concentration in the influent of 350 mg NH4+-N/L, maintaining the ammonium loading rate at 0.15 g NH4+-N/Ld during the operation time. However, the applied organic loading rate was increased stepwise by incr...
Aerobic treatment is an alternative to the slower anaerobic treatment processes for concentrated industrial wastewater such as food processing wastewater. This paper reviews the performance of various aerobic treatment methods for the treatment of food processing wastewaters. It was noted that the total chemical oxygen demand (COD) removal efficiencies and process capacities were affected by th...
The sequencing batch reactors were developed to treat the actual wastewater from ethylene glycol/ethylene oxide producing industry. Four identical reactors with total and effective liquid volumes of 9 and 7 L were operated respectively in parallel. Laboratory experiments were conducted with different organic loadings of 500, 1000, 1500 and 3000 g-COD/m3.day and the performance of the reactors w...
In this study, the microbiomes linked with operational parameters in seven mesophilic full-scale AD plants mainly treating food waste (four plants) and sewage sludge (three were analyzed. The results obtained indicated lower diversity evenness of microbial population digestion (SD) compared to (FD) plants. Candidatus Accumulibacter dominated (up 42.1%) SD due immigration from fed secondary 89%)...
A membrane aerated biofilm reactor (MABR), in which O(2) was supplied from the bottom of the biofilm and NH(4)(+) and organic carbon were supplied from the biofilm surface, was operated at different organic carbon loading rates and intra-membrane air pressures to investigate the occurrence of simultaneous chemical oxygen demand (COD) removal, nitrification and denitrification. The spatial distr...
The overall goal of this study is to explain how information literacy instruction (ILI) influences the adoption of online library resources (OLR) by business students. A theoretical model was developed that integrates research on ILI outcomes and technology adoption. To test this model, a web-based survey, which included both closed and open-ended questions, was administered to 337 business stu...
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