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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Sand filter"”.
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Mechanism of virus removal and nutrient reduction and modification of bio-sand filter
… on the removal of bacteriophage MS2 using bio-sand filters (BSFs) and analyze the formation of the bacterial community in BSFs, and modify BSFs with different packing materials and structures. Five bench-scale BSFs were constructed from 4 inches PVC. Two BSFs were fed with high and low nitrate …
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An experimental and theoretical investigation of the clogging of a rapid sand filter
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1935.
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Wastewater renovation with soil depth as influenced by additional treatment of septic tank effluent
… tank, constructed wetlands, and recirculating sand filter), were used in this study. Effluent (670 cm³/d) was applied 6 times daily. Additional treatment of septic tank effluent by a constructed wetland and a recirculating sand filter resulted in 30 and 70% higher average soil infiltration …
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A Bayesian stormwater quality model and its application to water quality monitoring
… Three systems were studied in this research: a sand filter, a gravel wetland, and a retention pond. The contaminants under consideration include: total suspended solids (TSS), total petroleum hydrocarbons - diesel range hydrocarbons (TPH-D), dissolved inorganic nitrogen (DIN, comprised of …
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Effects of soil texture, soil depth, and treatment on septic tank effluent renovation
… by constructed wetland (CW) and recirculating sand filter (RSF) systems, on wastewater renovation in a texture group 2 (loam) and a texture group 3 (clay loam) soil. The soils with depths of 15, 30, and 45 cm were placed in the columns with a Gidding's hydraulic soil probe in order to retain …
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Treatment of Wet Fish Sludge with Vermicomposting
… methods were tried by many researchers like sand filtration method, recirculating aquaculture system, intermittent filtration methods. The most of the industries use sand filtration methods for treating aquaculture wastewater and the problems associated: the reduction in hydraulic …
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On-site wastewater treatment and disposal systems on reclaimed mined land
… plastic cylinders. Septic tank effluent and sand filter effluent was applied to the soil columns daily at three different loading rates for a period of 5 months. Wastewater samples were collected after passing through the soil columns and analyzed for several chemical parameters as well as …
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Capturing Stormwater Nitrate and Phosphate with Sorptive Filter Media
… in drinking water. This research shows that sand filters mixed with 5% iron filings captured, on average, 88% of the influent phosphate in laboratory experiments. Neither incorporation of iron filings into a sand filter nor capture of phosphate had a significant effect on the hydraulic …
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Development of unsaturated flow functions for low impact development stormwater management systems filter media and flow routines for hydrological modeling of permeable pavement systems
… was given to modeling water routing through the filter media layers of LID systems. The water movement through a permeable pavement system was monitored for over a year and it was found that the system functions under unsaturated conditions. Saturation was never observed at any levels in the …
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Method development and application for measuring representative & potential denitrification rates during wastewater reclamation in soil treatment units
… were packed with soil classified as Seffner fine sand obtained from Central Florida. The soil had sand-silt-clay percentages of 95-1-4, respectively (% weight). This fine sand had an effective size (D10) of 0.12 mm, a uniformity coefficient of 2.3, a pH of 5 and a fraction of organic carbon …
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Characterization of manganese oxide coated porous carbon aerogel to isolate the effects of electro-less deposition time, li+ -ion exchange, and heat treatment on ion selectivity and specific capacitance
… with a task of using two different types of filters (a granular filter and sand filter) to ‘clean’ contaminated water. This involved a presentation on the overview of water filtration and the engineered water cycle. Subsequently, both groups performed a hands-on activity that involved the …
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Evaluation of methods for the recovery, chemical and toxicological characterization of trace organics
… banks consisting of either 2 activated carbon filters in series or a pressure sand filter followed by 2 carbon filters. The yield of organics from 3 water sources, a lake and 2 rivers, was generally greater for the solvent chloroform extract (SCE), however, the SEM and CAM possessed different …
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Manganese oxide deposits in water treatment facilities, North East Scotland.
… robust and could not be easily removed from the sand substrate they uniformly encapsulated within sand filtration beds. The oxides were amorphous with a stoichiometry close to MnO2, with very little variance in stoichiometry found within filter beds and between treatment facilities. The mass of …
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Investigación sobre eliminación de sales metálicas por procedimientos avanzados
… following points: Influent and effluent of the sand filter of the plant, and in the effluents of the ultrafiltration and reverse osmosis of the pilot plants installed in the municipal plants with the finality of produce high quality reclaimed waters. The obtained results are compared with the …
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Investigación sobre acondicionamiento ambiental y sostenibilidad en las prospecciones petrolíferas
… respectively; reaching high levels when a sand filter is used at the end. From equal way, very good results in the heavy metals removal were obtained. The results show that the oxidation with H202 can be a good option for the industrial wastewater treatment that contains refractory organic …