Decanter Centrifuge

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Decanter centrifuges reduce moisture to 75–80% while separating sludge and suspensions in wastewater treatment. Utilized in the mining, oil, and food sectors. ISO-approved, minimal chemical use.

Contact Company

Wuxi Zhaolie Environmental Protection Technology Co., Ltd

Jiangsu, China

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Fundamentals of Work
Decanter centrifuges are essential for effective solid-liquid separation in wastewater treatment. Our horizontal decanter centrifuge series replaces belt filters with less energy and chemical consumption by using centrifugal force to reduce sludge moisture from 98% to 75-80%. Perfect for the mining, food processing, and municipal sectors.

Data Sheet

Model	Drum Diameter	Inlet Capacity (m³/h h)	Power of Main/ Auxiliary Motor (kW W)	Wei Weight (kg g)	Dimension (max) (mm m)
ZL-250	250	1-4	11/4	1200	2650720900
ZLF-250	250	1-4	11/4	1200	2650720900
ZL-250W	250	1-5	11/4	1300	2650720900
ZL-350	350	5-15	22/5.5	2000	35859801238
ZLS-350	350	2-10	22/5.5	2000	36769801238
ZL-450	450	5-20	30/11	3000	438010801360
ZL-450W	450	5-28	30/11	3200	438010801360
ZLS-450	450	5-15	37/11	3200	419510801360
ZL-520	520	10-26	45/15	5000	484011601465
ZLS-520	520	10-25	55/15	5500	43401362996
ZL-550W	550	10-45	55/15	5500	503813881578
ZL-650W	650	20-60	90/15	8500	510018001560
ZL-720W	720	35-85	110/22	12000	520019001620

Decanter Centrifuge Applications
1. Treatment of industrial and municipal wastewater
Municipal dewatering of sludge
Dehydration of sewage treatment plant residual and biochemical sludge (lowering moisture content from 98% to 75%–80%).
To use fewer chemical agents, replace the belt filter press and the plate frame filter press.
Treatment of industrial wastewater
Food processing (wastewater from slaughter, dairy products, and starch).
Paper industry (white water recycling, pulp wastewater).
Chemical/pharmaceutical (separation of fermentation broth, high-concentration organic wastewater).
2. Industry of Petrochemicals and Energy
Treatment of oilfield drilling mud
Extract the liquid phase from drilling mud by separating the bentonite and rock fragments. Treatment of oil-containing sludge on offshore platforms (along with a hot washing procedure).
The Chemical and Refining Industries
Refinery dehydration of the "three sludges" (scum, oil sludge, and activated sludge) and chemical catalyst recovery (e.g., PTA mother liquor separation).
3. Biotechnology and Food
Processing of food
Starch industry: dehydration and washing of corn and potato starch.
In the brewing industry, protein is recovered by solid-liquid separation of distiller's grains.
Purification of cooking oil is part of the oil industry.
Pharmaceuticals and biological fermentation
Bacterial cell isolation from broth fermented with enzymes and antibiotics, as well as clarification of an extract from traditional Chinese medicine.
4. The Mining and Metallurgical Sector
Mining and mineral processing
Fine coal slurry is recovered from wastewater from coal washing in coal mines.
Dewatering tailings from metal mines, including those that produce copper and gold.
Wastewater from metallurgy
Dehydration of pickling wastewater sludge from steel mills that contains iron and zinc, two heavy metals.
5. Additional developing fields
Fresh energy
Recycling lithium batteries involves removing the electrolyte's positive and negative electrode components.
Glycerol and crude oil are separated to create biodiesel.
Cleanout of the channel:
Sludge is reduced and dehydrated to facilitate disposal and transportation.