Treatment characteristics of domestic sludge and printing and dyeing sludge

    Characteristics of domestic sludge:

The sludge yield is medium, generally accounting for about 0.1% of the total volume of sewage, but the total amount is large.

High organic content, generally up to 30%~60%.

Mixed with some industrial waste water, will lead to the increase of heavy metal content.

High moisture content, generally up to 95%~99%, even after dehydration moisture content is still in 60%~80%.

There are a large number of pathogenic bacteria and parasites, easy to rot smelly, unstable.

Domestic sludge treatment characteristics:

Harmless, reduction, stabilization, resources.

The dehydrated sludge is dried.

Sludge classification special treatment.

Made into high calorific value of dry particles for brick or auxiliary fuel.

Features of dyeing sludge:

The sludge yield is large, and the total sludge volume accounts for 0.3%~1.0% of the total sewage volume.

High moisture content, generally up to 96%~99%, after mechanical dehydration is still 55%~85%, volume and quality.

Quantity is larger.

Dyeing sludge generally higher inert substances, and organic matter, pathogens, etc.

Less content, calorific value is also low, generally high content of heavy metals.

Features of printing and dyeing sludge treatment engineering:

Harmless, reduction, resources.

The dehydrated sludge is dried.

Sludge classification special treatment.

Made into dry pellets for brick making or auxiliary fuel.

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