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AmerCable Incorporated


Articles - Sludge Treatment

Source: Lenntech - Wastewater Treatment 

Sludge Parameters

Sludge parameters are the basis for the supervision and the construction of sludge treatment plants. They provide the engineer with important notes over the existing (in-) organic portions, the settling behavior, the dewatering and the heat value of the sludge.

  • Total suspended solids TSS 
    Mixed liquid from the reactor, the treated water, and the feed is filtered and heated in a 105C oven. In this process, because of the low temperature, only the water is evaporated and nothing is burned. This is then weighed to conclude how much solids were in the feed, the treated water and the reactor. 

     

  • Volatile suspended solid VSS 
    The filtrate is taken from the 105 degree C oven and then placed in a 600 degree C oven where the organic materials burn and the left over inorganic materials are weighed. 

     

  • Sludge volume index SVI
    Mixed liquid is taken from the reactor and taken to a slow mix to settle.
    After half an hour the sludge volume is measured. The SVI units are (ml/g).

     
 

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