Pulp & Paper Mill Effluent Treatment Belt Filter

Pulp & Paper Mill Effluent Treatment Belt Filter

Category： Belt Filter
Energy Consumption: <15 kW/h
Water Recycling: Closed-Loop System
Noise Level: <65 dB
Certifications: CE
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Belt filter press description

The belt filter (sometimes called a belt press filter, or belt filter press) is an industrial machine, used for solid/liquid separation processes, particularly the dewatering of sludges in the chemical industry, mining and water treatment. Belt filter presses are also used in the production of apple juice, cider and winemaking. The process of filtration is primarily obtained by passing a pair of filtering cloths and belts through a system of rollers. The system takes a sludge or slurry as a feed, and separates it into a filtrate and a solid cake.

Belt filter press principle

Belt presses are a common type of mechanical dewatering equipment used to dewater most biosolids generated at municipal wastewater treatment plants and many industrial applications. Belt presses are used to remove water from liquid wastewater residuals and produce a non-liquid material referred to as “cake”. The Belt Filter Press is a broadly applicable product for dewatering municipal biosolids and industrial sludges. Since this is a continual process, it is effective on high-volume waste streams where a large production of low-quality filter cake is acceptable.

Belt filter technical sheet

Sludge Kinds	Input Concentration %	Capacity m³/h	DS Capacity kg/h	Moisture of Cake %	PAM Consumption %(DP/DS)
Unconcentrated Aerobic Sludge	0.5~1.5	15~30	150~300	~80 (+2)	2~5
Concentrated Aerobic Sludge	2~4	6~12	200~300	~80 (+2)	2~5
Digested Sludge	3~6	7~15	300~400	<80	2~5
Unconcentrated Primary Sludge	0.8~2.0	18~35	300~400	<80	2~5
Concentrated Primary Sludge	3~5	6~12	300~400	<80	2~5
Paper-making Activated Sludge	0.5~2.5	15~35	200~400	<78	3~7
Printing and Dyeing Mixed Sludge	1~3	10~25	180~350	75~78	3~10

Model selection

Model	Belt Width	Sludge Concentration	Outlet Concentration	Capacity	Power
DNT-1000	1000mm	2-4%	15-25%	6-12	1.49kW
DNT-1500	1500mm	2-4%	15-25%	12-15	2.05kW
DNT-2000	2000mm	2-4%	15-25%	15-25	2.6kW
DNT-2500	2500mm	2-4%	15-25%	35-50	4.1kW

Belt Filter Press Advantage

Automatic Operation
High throughput capacities
Superior cake dryness
Belts of equal length
Increased belt life thanks to constant torque dual motor system
VFD controlled belt drive
Flexible to the inlet sludge
High quality construction
Durable heavy duty design
Reduced whole life cost
Low energy consumption
Low polymer consumption
7 to 11 High pressure rollers
Hydraulic belt tensioning and centering
Integrated belt washing pump
Self-cleaning spray nozzles
Sludge inlet reactor vessel or conical reactor distribution reaction tank

Belt filter press features

A choice of 2 or 3 belt dewatering systems with standard, extended, or independent gravity zones for consistently high cake solids in varying sludge conditions.
When higher hydraulic sludge capacities need to be treated, the drainage zone is extended by installing a thickening stage before the actual dewatering process
Increase of the effective filtration areas.
Innovative low pressure zone concept consisting of a big diameter perforated roll substitution in the traditional wedge area.
Effective high pressure zone (increase of pressure intensity and time).
The possibility to install 5-7-9-11 rolls in final high pressure zone allows the machine to be configured per the application characteristics and required performance.

Belt filter press applications

Thickening and dewatering in one stage (thank to efficient thickening zone or combined with gravity belt table)
Municipal and industrial sludge

High efficiency in specific applications: pulp & paper, manure, biogas, slaughterhouse, chemical sludge, etc.

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