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Views: 0 Author: Lydia Shen Publish Time: 2026-03-24 Origin: Site
The biosolids sludge paddle dryer is a high-performance drying system designed to reduce moisture content in municipal and industrial sludge, transforming waste into valuable, reusable resources such as fertilizer, soil conditioner, or alternative fuel.
Using indirect heating technology, this system ensures maximum energy efficiency, minimal emissions, and safe operation, making it ideal for modern wastewater treatment plants.
A biosolids dryer is a specialized thermal system that removes water from sludge generated during wastewater treatment processes.
Reduces sludge volume by up to 70–90%
Produces Class A biosolids compliant with environmental standards
Converts waste into granular, odor-free, and easy-to-handle material
sludge drying system
wastewater sludge dryer
municipal biosolids drying
industrial sludge drying equipment
thermal sludge drying
The system uses indirect drying, where heat is transferred through heated surfaces (paddles, shafts, or jackets) without direct contact between sludge and combustion gases.
Heating medium: steam or thermal oil
Heat transferred via hollow shafts and paddles
Moisture evaporates and is extracted via a controlled exhaust system
This design ensures:
High thermal efficiency (up to ~98%)
Minimal off-gas generation
Reduced odor and emissions
Dual counter-rotating shafts with intermeshing paddles
Constant agitation prevents sludge sticking
Uniform heat distribution for consistent drying
This results in:
Stable product quality
Faster drying time
Reduced maintenance
High heat transfer efficiency
Low fuel consumption
Compatible with waste heat recovery systems
Small footprint compared to rotary dryers
Low-speed operation reduces wear
Minimal moving parts = lower maintenance cost
Closed system with low emissions
Easy integration with odor control systems
Meets EPA Class A biosolids standards
Suitable for:
Municipal wastewater sludge
Industrial biological sludge
Food processing waste
Paper mill sludge
Oil & chemical sludge
Reduces sludge disposal costs
Produces reusable biosolids fertilizer
Handles complex sludge compositions
Supports compliance with environmental regulations
Dried biosolids can be used as:
Slow-release fertilizer
Soil amendment
Green fuel for boilers and cement kilns
Parameter | Value |
|---|---|
Drying Method | Indirect (Steam / Thermal Oil) |
Moisture Reduction | 70% → 10% (adjustable) |
Final Product | Granular / Powder |
Thermal Efficiency | Up to 98% |
Capacity | 100 kg/h – 50,000 kg/h |
Operating Mode | Continuous |
Heat Source | Steam, Natural Gas, Waste Heat |
Sludge Dewatering (centrifuge / filter press)
Sludge Feeding System
Biosolids Dryer
Vapor Condensation System
Exhaust Gas Treatment
Dried Product Discharge
Screw conveyors
Dust collectors
Pelletizing systems
Heat recovery units
Compared to traditional systems, our solution offers:
Feature | Our System | Conventional Dryer |
|---|---|---|
Energy Efficiency | High | Medium |
Emissions | Low | High |
Maintenance | Low | High |
Footprint | Compact | Large |
Automation | Fully Automatic | Semi-Automatic |
We provide tailor-made sludge drying solutions based on:
Sludge characteristics (moisture, viscosity)
Plant capacity requirements
Available energy sources
Environmental compliance standards
Our engineering team ensures:
Process optimization
Energy savings
Long-term reliability
Typically reduced to 10–30%, depending on application.
Yes, with proper material selection and system design.
By significantly reducing volume and converting waste into reusable products.
Municipal wastewater
Chemical processing
Food & beverage
Oil & gas
Pulp & paper
The biosolids sludge paddle dryer system is a critical solution for modern wastewater treatment, enabling cost reduction, environmental compliance, and resource recovery. With advanced indirect drying technology, it delivers high efficiency, low emissions, and consistent product quality, making it the ideal choice for sustainable sludge management.
Eamil:lydia@jiningdry.com
Whatsapp:+8613776858224
