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  • Waste Water Treatment
    to the Secondary Treatment phase. Secondary Treatment is used to lower the organic load of soluted organic compounds, either in an aerobic (aerated) or anaerobic (oxygen-free) condition. Organic load is normally measured by BOD (Biochemical Oxygen Demand) or TOC (Total Organic Carbon
  • Application of pre-acidification
    , pre-acidification, anaerobic treatment, pulp and paper wastewater, solids removal The effect of an acidogenic solids removal reactor on the properties, and biological treatability, of secondary wastewater from a bagasse based integrated pulp and paper mill was tested using acidogenic continuously stirred
  • Pressure Control In a Biogas Generator
    .  The Equilibar precision back pressure regulator has been successfully used in one . biogas plant to effectively control the biogas pressure at 4 psig while circulating excess gas back to the . digester for reuse. . About Anaerobic Digesters .  Anaerobic digestion (AD) is a biological process in which
  • Medical Device Link .
    for microorganisms but has relatively low toxicity for human tissue cells. Silver works in a number of ways to disrupt critical functions in a microorganism. For example, it has a high affinity for negatively charged side groups on biological molecules. These include groups such as sulfhydryl, carboxyl
  • Advanced Oxidation Ditch Performance (.pdf)
    will be discussed in this paper. KEYWORDS. Oxidation ditch, single sludge nitrification-de-nitrification, on-off operation. INTRODUCTION. Oxidation ditches are biological treatment processes that achieve high performance while at the same time requiring relatively simple operational skills. Older oxidation
  • Biochemical modeling
    and RD respectively, while that of the aerated lagoon ranged between 6.8 and 8.4. The pH of the effluent from the aerated lagoon was found to be within the accepted range for biological treatment systems i.e. not less than 6 and not more than 8.5 (ECSC et al, 1994). Effective pH for most biological
  • Composting: Improving On a Time-Tested Technique
    . pathogens in manure samples. before composting. Similar. examinations are later. conducted on finished compost. to ensure that pathogens. have been killed. (K10594-1) Biological treatment technologies may be either aerobic or anaerobic. Aerobic systems use oxygen, but anaerobic ones don't. Both may use
  • The Importance of Biochemical Oxygen Demand (BOD) in the Water Analysis Sector (.pdf)
    -. 4. the BOD, which is intended only to detect the. suming a great deal of oxygen) is introduced, and. may ”tip over”. In another case, the biological ca-. consumption of oxygen for carbon oxidation (C-. pacity of a sewage treatment plant can be tested. BOD). General y speaking, nitrification sets

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