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 8 of 8 for “"VS destruction"”.
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Improving Anaerobic Digestion of Sewage Sludge Using Free Ammonia Pretreatment
… comprehensive evaluation of the volatile solids (VS) destruction, dewaterability, pathogen removal, and its implications. In comparison to the control (without FA pretreatment), FA pretreatment (560 mg NH3-N/L, 24h) enhanced the VS destruction of primary sludge by 12%, which is related to the 31% …
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Anaerobic and Combined Anaerobic/Aerobic Digestion of Thermally Hydrolyzed Sludge
… energy production. With an increase in solids destruction, the nutrients that are contained in sludge especially nitrogen, are released to solution and can be recycled as part of filtrate or centrate stream. Nitrogen has gained importance because it has adverse effects on ecosystem's as well as …
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The dual digestion of sewage sludge using air and pure oxygen
… At long retention times, the volatile solids (VS) destruction was appreciable (~25%) and the reactor tended towards an autothermal thermophilic digester. Foaming, although unpredictable in its occurrence, significantly improved aerobic reactor performance by doubling the oxygen transfer …
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Biomethane production from grass silage: laboratory assessment to maximise yields
… at a high organic loading rate (OLR) of 4.0 kg VS m-3 d-1. The addition of a slurry co-substrate was beneficial due to its wealth of essential trace elements. To stimulate hydrolysis of high lignocellulose grass silage, particle size reduction (physical) and rumen fluid addition (biological) …
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The Effect of Cations on Volatile Solids Destruction, Odors, and Dewatering in anaerobic digestion
… sludge feed cations on volatile solids destruction, odor control, and dewaterability. The role of influent feed cations and addition of chemical coagulants to sludge were evaluated for those characteristics following anaerobic digestion. Wastewater sludge samples were obtained from seven …
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Operational modes for effective recovery of energy from ryegrass using anaerobic digestion
… of ryegrass (Lolium perenne) to be 0.245 m3 kg-1 VS added. This was determined in a series of conventional batch digestion studies at different inoculum to substrate ratios using an anaerobic sludge taken from a municipal wastewater digester. The research then went on to examine potential energy …
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Anaerobic digestion of catering wastes
… content of 28.1±0.25 %, a volatile<br/>solids (VS) content of 95.5±0.06% of TS and a chemical oxygen demand (COD) of<br/>422±16 g kgwet weight -1. The total Kjeldahl nitrogen (TKN) and total lipid content were<br/>22±1% and 3.8±0.24% of TS, respectively.<br/><br/>The substrate was then processed …
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Anaerobic / Aerobic Digestion for Enhanced Solids and Nitrogen Removal
… operational parameters, such as COD removal, VS destruction, biogas production, Nitrogen removal, odor removal and dewatering properties of the resulting biosolids were studied and the results were compared among different processes. From the study, it was found that An/Aer/An – B (wastage …