Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 15 of 15 for “"influent flow"”.
-
ANALYSIS OF DROUGHT ASSOCIATED IMPACTS ON THE CITY OF SAN BERNARDINO MUNICIPAL WATER DEPARTMENT’S WASTEWATER FLOW RATES AND CONSTITUENT CONCENTRATIONS
… wastewater treatment plant (WWTP) wastewater flow rates and constituent concentrations. The study utilized data obtained from the SBMWD’s monthly discharge monitoring reports (DMRs), dating from 2007 to 2015. For each report the SBMWD Water Reclamation Plant (WRP) and Rapid Infiltration and …
-
Design and control of equalization tanks.
… reduces, optimally, diurnal fluctuations in both influent flow and load rates. The influent to a wastewater treatment plant generally exhibits wide diurnal variations in both flow rate and concentration, and consequently in load rate (defined as the product of flow rate and concentration). …
-
Accuracy investigations of Parshall flumes and propeller meters
… of municipal wastewater per day. Since effluent flow measurement commenced in 1991, measured outflow of water from the facility has often exceeded measured inflow, a physical impossibility. The discharged flow to Las Vegas Wash is reported to the State of Nevada Colorado River Commission, which …
-
Full-scale trials of external nitrification on plastic media nitrifying trickling filter
… (BEPRAS) systems in an external nitrification flow scheme (Hu et al., 2000). In such a scheme, the full influent flow (after primary settling) is discharged to the anaerobic reactor of the BEPRAS system, after which the activated sludge is separated from the water by internal settling tanks. …
-
Optimization of intermittent aeration for increased nitrogen removal efficiency and improved settling
… had a variable HRT (2-7 hours) and a variable influent flow rate. When operating in the MLE configuration, an internal mixed liquor recycle (IMLR) line returned nitrified mixed liquor from the last aerobic reactor to the anoxic reactor using a peristaltic pump at a rate between 200-450% of the …
-
Fundamental study of hydrophobic microporous membrane contactors for the recovery of insoluble oil from oil-water mixtures
… oil and gas streams such as produced and flowback waters or oil spills. The goal of this doctoral work was to advance the understanding of a membrane contactor process for the recovery of insoluble oil from water. The hydrophobic hollow fiber membrane had been successfully tested in our …
-
Nitrate utilization as the final electron acceptor in a biological phosphorus removal system
… 6.2 hours anoxic or aerobic). The sludge recycle flow rate was equal to the influent flow rate. The two systems were fed with the same domestic wastewater spiked with sodium acetate and potassium phosphate to give the wastewater a COD concentration of 300-400 mg/L and a phosphorus concentration of …
-
Filamentous algae as a nutrient scrubber for agricultural drainage treatment
… Oedogonium sp. To maintain dominance on the floway for a longer period. For these reasons, Oedogonium sp. Was identified as a promising target for year-round cultivation on FANS. FANS operating parameters can strongly influence algal biomass productivity and nutrient removal. Therefore, the …
-
An investigation into control strategies for activated sludge wastewater treatment plants.
… of wastewater treatment processes, such as influent flow pattern and temperature. The investigation identified the control of dissolved oxygen as an important area to study because insufficient levels of dissolved oxygen in the wastewater prevent the successful degradation of organic matter …
-
Dairy Manure Flushwater Treatment by Packed-Bed Anaerobic Digesters
… were used as the packed media. Digester influent, which was pretreated to remove large solids, had the following characteristics: total solids (TS) of 5.5 g/L, volatile solids (VS) of 2.8 g/L, 5-day carbonaceous biochemical oxygen demand (cBOD<sub>5</sub>) of 800 mg/L, and chemical oxygen …
-
The effect of influent organic compounds on the performance of biological nutrient removal systems
… of the research was to investigate the effect of influent organic compounds on the performance of biological nutrient removal system. To carry out the investigation, a pilot plant system was designed and constructed. The system was operated as a UCT process at an influent flow rate of 0.15 …
-
Treatment of natural rubber wastewater using oil palm empty fruit bunch, kaolin and zeolite as composite adsorbent
… performances were evaluated by varying the influent flow rate (2, 2.5 and 3 mL/min) while the adsorption kinetics was analysed using Thomas, Yoon-Nelson and Adam-Bohart kinetic models. The regeneration of the composite adsorbent for up to five adsorption/desorption cycles was also …
-
Wastewater-based Surveillance for Hepatitis A and C in an Inflow- and Infiltration-Impacted Rural System
… sewer systems, dilution and other effects from inflow and infiltration (IandI) may have substantial impacts on pathogen detection. The objective of this study was to assess the potential for WBS in small, rural systems influenced by IandI to detect and track HAV and HCV as representative viruses …
-
The effect of high solid retention times in activated sludge reactors on operational costs at Mitchells Plain WWTP
… operational skills, etc. At higher SRTs, waste flow rates are lower, which leads to a lower demand on a WWTPs sludge handling facilities and lower pumping rates. In return, a higher SRT will lead to a higher oxygen utilization rate (OUR) in the AS reactor. This will lead to higher electricity …
-
Developments in anaerobic digestion modelling
… digester start-up, digester failure or even upflow anaerobic sludge bed (UASB) reactors (which have temporary failure conditions at the bottom of the bed). This study aims to develop an AD model capable of predicting failure and digester start-up conditions. Development of an improved model was …