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  2. Mixed liquor suspended solids - Wikipedia

    en.wikipedia.org/wiki/Mixed_liquor_suspended_solids

    The units MLSS is primarily measured in milligram per litre (mg/L), but for activated sludge its mostly measured in gram per litre [g/L] which is equal to kilogram per cubic metre [kg/m3]. Mixed liquor is a combination of raw or unsettled wastewater or pre-settled wastewater and activated sludge within an aeration tank.

  3. Kilogram per cubic metre - Wikipedia

    en.wikipedia.org/wiki/Kilogram_per_cubic_metre

    The kilogram per cubic metre (symbol: kg·m −3, or kg/m 3) is the unit of density in the International System of Units (SI). It is defined by dividing the SI unit of mass, the kilogram, by the SI unit of volume, the cubic metre. [1]

  4. Density system unit unit-code symbol or abbrev. notes sample default conversion combination output units Metric: kilogram per cubic metre: kg/m3 kg/m 3: 1.0 kg/m 3 (1.7 lb/cu yd)

  5. Sewage sludge - Wikipedia

    en.wikipedia.org/wiki/Sewage_sludge

    Silver is present to the degree of 20 mg/kg of sludge, on average, while some sludges have up to 200 milligrams of silver per kilogram of sludge; one outlier demonstrated a silver lode of 800–900 mg per kg of sludge. Barium is present at the rate of 500 mg/kg, while manganese is present at the rate of 1 g/kg sludge.

  6. Aerobic granulation - Wikipedia

    en.wikipedia.org/wiki/Aerobic_granulation

    The use of aerobic granular sludge ... removed a nitrogen loading rate of 1.0 kg-N/m 3 ·d with an ... with a capacity of 59.000 pe and 1,500 m3.h-1, being the first ...

  7. Sludge - Wikipedia

    en.wikipedia.org/wiki/Sludge

    Fecal sludge collected from pit latrines near Durban, South Africa, awaiting further treatment by drying. Sludge (possibly from Middle English slutch 'mud, mire', or some dialect related to slush) [1] is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems.

  8. Activated sludge - Wikipedia

    en.wikipedia.org/wiki/Activated_sludge

    Mixed sludge and sewage is decanted at the surface and separated into supernatant and sludge components. The efficiency of deep shaft treatment can be high. Surface aerators are commonly quoted as having an aeration efficiency of 0.5–1.5 kg O 2 /kWh (1.1–3.3 lb O 2 /kWh), diffused aeration as 1.5–2.5 kg O 2 /kWh (3.3–5.5 lb O 2 /kWh).

  9. Sludge volume index - Wikipedia

    en.wikipedia.org/wiki/Sludge_volume_index

    Sludge Volume Index (SVI) is a process control parameter used to describe the settling characteristics of sludge in the aeration tank of an activated sludge process. [1] It was introduced by Mohlman in 1934 and has become one of the standard measures of the physical characteristics of activated sludge processes.