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.
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Showing 1 to 20 of 201 for “"BOD"”.
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Bod loading as a basis of design for activated sludge plants
Thesis (M.S.) Massachusetts Institute of Technology. Dept. of Civil and Sanitary Engineering, 1947.
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Two Essays on Resource Economics: A Study of the Statistical Evidence for Global Warming and An Analysis of Overcompliance with Effluent Standards Among Wastewater Treatment Plants
… regulated pollutant, biochemical oxygen demand (BOD). The testable hypotheses are: whether jointness in pollution control between nitrogen and BOD can explain overcompliance and whether variation in BOD output can explain BOD overcompliance. These hypotheses are examined by developing a …
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Only a body “who nobody owns:” Adolescent identity in Neil Gaiman’s The Graveyard Book
… <em>The Graveyard Book</em> presents a child, Nobody (Bod) Owens, who grows up in a graveyard with ghosts and a vampire as primary guardians. While Bod is not technically an adolescent for the entire novel, he is constantly struggling with adolescent themes—primarily being in a liminal state—and …
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Computational fluid dynamics modelling of dissolved oxygen in oxidation ditches.
… (BSD) and biochemical oxygen demand (BOD) distribution on the DO distribution. Species transport modelling predicts the BOD and DO distribution in the ditch. De-oxygenation of local dissolved oxygen by BOD is modelled by an oxygen sink that depends on the local BOD concentration. This …
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Ecological studies on high-rate biological filters with special reference to microbial biosynthesis and nitrification
… and the mineral media around 73 percent of the BOD applied when the 90 percentile BOD concentration was 563 mg/1. At a hydraulic loading of 4 m3 /m3 .d the secondary filters removed most of the POD from partially settled primary filter effluents, with one secondary effluent satisfying a 25 mg/1 …
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The aerobic digestion of semi-chemical pulp mill wastes
… are capable of digesting the waste, as 5-day BOD reductions as high as 74.5 per cent were obtained in 6-day aerations with nitrogen added as a nutrient. A limit of 5-day BOD reductions of about 30 per cent was found for aerations without added nutrients. The addition of sulfur, phosphorus, …
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Intelligence by design : principles of modularity and coordination for engineering complex adaptive agents
… describes an approach, Behavior-Oriented Design (BOD) for engineering complex agents. A complex agent is one that must arbitrate between potentially conflicting goals or behaviors. Behavior-oriented design builds on work in behavior-based and hybrid architectures for agents, and the object …
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Treatment of clam-processing wastewater using upflow anaerobic sludge blanket (UASB) technology
… Virginia state effluent regulations for BOD₅:TSS ranged from 0:0 to 90:90 to as high as 500:500 depending on the facility location. It was found that at a volumetric organic loading rate of 13.8 g COD/L/d the BOD₅ removal efficiency averaged 87% and TSS removal efficiency averaged 83%. …
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Y Plentyn Hapus: Ymchwiliad i ddehongliadau a phrofiadau plant 3 – 7 oed o’r hyn sy’n creu ymdeimlad o hapusrwydd ynddynt o fewn yr ysgol.
Er bod llais a lles y plentyn yn flaenoriaeth o fewn ein system addysg yma yng Nghymru, prin yw’r dystiolaeth sydd yn seiliedig ar holi ein dysgwyr ifainc am eu profiadau o hapusrwydd o fewn yr ysgol. Er bod yr awydd yn gryf i sicrhau amgylcheddau a phrofiadau addysgegol ysgogol a fydd yn apelio at …
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Aerobic treatment of CTMP wastewater in sequencing batch reactors
… and had a COD of approximately 7200 mg/I and BOD₅ of roughly 2700 mg/I. SBR cycle times used were 24 and 48 hours, with hydraulic retention times of 34.3 and 68.6 hours respectively. The 24-hour cycle consisted of 22 hours aeration, one hour settling and one hour decant. Sludge retention times …
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Comparison of circumference-based equation and air displacement plethysmography to assess body fat percentage and evaluation of intervention for Army ROTC cadets to meet body composition standards.
… are used in the United States Army to determine body fat percentage and measurements taken using the BOD POD. Additionally, this study investigated the effectiveness of a fitness and nutritional intervention program in reducing the number of cadets not meeting the Army standard for body fat …
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Investigation of Dairy Wastewater Using Biowish
… degradation of biochemical oxygen demand (BOD), solids, and nitrate concentrations. The dairy wastewater was augmented with various bacterial composition obtained from BiOWiSH<sup>TM</sup>. The bacterial mixes experimented were US Aqua, Thai Aqua, BMT, Osprey, Fruit Wash, KLB, LCM1, and …
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Wastewater treatment alternatives for a vegetable and seafood cannery
… wastewater, the discharge requirement for BOD was nearly met through plain settling, while the TSS limitation was easily achieved by settling out the roe particles" Oyster processing wastewater was found to meet effluent guidelines without treatment. Bench-scale treatability studies were …
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Evaluation of oxygen uptake rate as an activated sludge process control parameter
… Oxygen uptake rate (OUR) was measured with the BOD bottle technique and with an on-line respirometer. The reliability of the results obtained from the BOD bottle technique was also of interest. No relationship could be deduced between effluent quality and oxygen uptake rate thereby suggesting …
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Evaluation of the subsurface vegetated bed form of constructed wetlands for domestic wastewater treatment
… time for 5-day biochemical oxygen demand (BOD₅), total Kjeldahl nitrogen (TKN), ammonium (NH₄-N), phosphates (PO₄³⁻-P), redox potential (Eh), and total dissolved solids (IDS). The pollutant removal rates, based on 23 data sets, were: BOD₅ (54-70%); NH₄⁺-N (30-61%); TKN (33-52%); PO₄³⁻-P …
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A comparison of selected chemical characteristics in runoff from different land types
… study were five-day biochemical oxygen demand (BOD₅), chemical oxygen demand, orthophosphorous, total phosphorous, nitrate, and total organic carbon. The major interest was in BOD₅ concentrations because of the importance of land runoff in stream assimilation modeling. Analyses were also …
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Uji kemampuan chlorella sp. sebagai bioremidiator limbah cair tahu
… menyebabkan limbah cair industri tahu mengandung BOD(Biological Oxygen Demand), COD (Chamical Oxygen Demand), TSS (Total Suspended Solid), nitrogen, dan fosfor yang tinggi, yang apabila dibuang ke perairan tanpa pengolahan terlebih dahulu dapat menyebabkan pencemaran. Pengolahan limbah cair tahu …
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Three-dimensional body scanning : a novel technique for body composition assessment
INTRODUCTION: Accurate body composition assessment is crucial for determining health consequences due to excess body fat (BF). While several techniques exist there are few that are accurate, non-invasive, fast, and comfortable for subjects. The Three Dimensional (3D) body scanner is a new body …
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