Case 2: Indonesia sumatra palm oil mill - centrifugal dehydrator

Problem: The centrifuge has poor dehydration effect, the mud cake is thin (water content is more than 85%), the supernatant has a high solid content (>1%), causing to frequent cleaning.

Sludge characteristics: Mainly physical and chemical sludge (coagulation and flotation sludge), high oil content, and extremely high viscosity.

PAM solution:

Model: Zwitterionic PAM

Cationic degree: 30%

Anionic degree: 10%

Molecular weight: 9 million

Effect:

The moisture content of the mud cake is reduced to 80-82%.

The solid content of the centrifuge supernatant is <0.5%.

The equipment operation stability is greatly improved, and the cleaning cycle is extended.

Key reason: Zwitterionic PAM has both charge neutralization and adsorption bridging capabilities, and is more adaptable to oily/viscous sludge.