Hybrid type dehydrator / Sludge drying, Recycling drying

There are a lot of kinds of dehydrator for sludge arises from wastewater treatment plants. Among them, hybrid type dehydrator is a condensation dehydrator which has both condensation and dehydration function combined.

■  Hybrid type dehydrator


Hybrid type dehydrator is a condensational dehydrator in which condensation function and dehydration function are combined, and it can perform condensation and dehydration processes within one apparatus although they are conventionally two separated processes. Condensation function and dehydration function are separated and independent, and their structure is screw type for both of them. While condensation and dehydration functions are independent, sludge being fed can be treated depends on its condition, density, etc.
Its screen is not filtering cloth but made by metal which required small amount of cleaning water and it has sealed structure that can cope with odor easily.
As flocculants, there are two types which are two-packs type with inorganic plus polymer and one-pack type with polymer only, and the choice is made based on types and condition of sludge.

hybrid type dehydrator sludge dryer kenki dryer 2020.6.8


About types of sludge dewatering / Sludge drying, Recycling drying


■ Sludge drying


Water in the sludge thickened in the sludge thickener tank are removed at dehydration process to a certain degree.
However, moisture content is normally more than 80% and the sludge still has adhesiveness and stickiness. Also, latter processes are not easy because of influence of flocculants. Our drying apparatus of KENKI DRYER with international patented technology can surely dry any sticky, adhesive and viscus sludge, and also materials in liquid state like slurry, without clogging inside of the dryer. Also, because of its simple structure, its price is low and apparatus cost of the dryer can be retrieved by reducing industrial waste disposal cost within 3 years. Dried materials can be recycled as fuel, bacterial fertilizer, soil conditioner, etc. since component of the material is hardly changed because of its low-temperature drying method.
It can be applied to a system with pyrolysis apparatus as well.


Please refer to the following pages about effect of flocculants during drying process.

About effects of flocculants during drying -1 / Sludge drying, Recycling drying

Comparison of drying between organic sludge and inorganic sludge after dewatering

Comparison between organic sludge and organic matter


Sludge drying

Self-cleaning screw



Please consider KENKI DRYER for drying of sticky materials, adhesive materials and materials in liquid state that no other dryer can deal with.
Initial, running and maintenance costs are low because of its simple structure based on internationally patented technology.
For sludge drying, costs of our dryers are estimated to be retrieved within 2, 3 years by reducing industrial waste disposal cost.
For raw material slurry drying, laborious works of manual operation will be decreased significantly by replacing box shaped compartment tray dryer with our dryer
In case of organic wastes drying, the waste can be recycled as fuel, fertilizer, soil conditioner and feedstuff after being dried.


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Pyrolyzer Biogreen
A pyrolyser with internationally patented technology which use no fire