Şahin Alçı Dekorasyon bilgileri
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Faydalı Bilgiler
Aerobic Digestion (water) : The breakdown of wastes by microorganisms in the presence of dissolved oxygen. This digestion process may be used to treat only waste activated sludge, or trickling filter sludge and primary (raw) sludge, or waste sludge from activated sludge treatment plants designed without primary settling. The sludge to be treated is placed in a large aerated tank where aerobic microorganisms decompose the organic matter in the sludge. This is an extension of the activated sludge process.
Sludge Volume Index (SVI) (water) : This is a calculation which indicates the tendency of activated sludge solids (aerated solids) to thicken or to become concentrated during the sedimentation/thickening process. SVI is calculated in the following manner: (1) allow a mixed liquor sample from the aeration basin to settle for 30 minutes; (2) determine the suspended solids concentration for a sample of the same mixed liquor; (3) calculate SVI by dividing the measured (or observed) wet volume (mL/L) of the settled sludge by the dry weight concentration of MLSS in grams/L.
TOPOGRAFYA : Engebelerini belirtecek şekilde bir araziyi grafik olarak gösterme işi.
Helik: Duvar örülürken büyük taşların arsına yerleştirilen küçük taşlar.
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