20+ Years · ISO 9001:2015
Wastewater Drying for Zero Liquid Discharge
Achieve Zero Liquid Discharge (ZLD) with SINOTHERMO’s wastewater drying solutions. Our dryers efficiently evaporate wastewater, producing valuable solids while minimizing environmental impact and water consumption.
- Free material testing in our lab
- Custom-engineered to your process
- Worldwide installation & commissioning
- Response within one business day





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CD Dryer for Continuous Effluent Concentrate Processing
Processes post-evaporation concentrate
Takes the concentrated liquid stream left after evaporation or RO pre-treatment and converts it to dry solids at 80–85% thermal efficiency.
Thin-film discs resist scaling
Continuous disc rotation handles the mineral scaling common in wastewater concentrate without building up on heat transfer surfaces.
Matches 24/7 treatment plant schedules
Continuous operation keeps pace with round-the-clock effluent treatment rather than requiring batch changeovers.

Vacuum Paddle Dryer for Concentrated Wastewater Residues
Lower drying temperature for corrosive salts
Vacuum operation reduces the temperature needed to evaporate wastewater residues, limiting corrosion from concentrated chlorides and sulfates.
Paddle agitation prevents scale buildup
Continuous agitation on the heated surface keeps crystallizing salts from caking as the residue dries.
Handles variable effluent composition
The wide 50°C–200°C operating range absorbs the swings in moisture and solids content typical of industrial effluent.

Vacuum Rake Dryer for Zero Liquid Discharge Systems
Final drying step in a ZLD process train
Completes the last stage after evaporation and crystallization, converting the remaining concentrate into a dischargeable solid.
Rake action limits salt caking
Continuous agitation keeps crystallizing salts from bonding to the chamber walls during the final drying stage.
Vacuum limits chloride corrosion
Lower-temperature operation under vacuum reduces the corrosive attack that wastewater chlorides cause on drying equipment.

Centrifugal Spray Dryer for Direct Liquid Evaporation
Single-pass evaporation to solid residue
Dilute wastewater streams convert directly from liquid to solid in one pass through the spray tower.
Handles variable solids content
High-speed atomization adapts to the fluctuating solids concentration typical of industrial effluent streams.
Reduces disposal volume
Converting water to vapor leaves only the solid residue requiring disposal, cutting transport and handling costs.

Vacuum Drum Scraper Dryer for Wastewater Sludge Cake
Processes post-clarification cake
Takes the thickened cake left after wastewater clarification and dewatering and converts it to a stable, flake-form solid.
Continuous discharge matches steady flow
The scraper mechanism keeps pace with continuous effluent treatment flow rather than requiring batch processing.
Flake form reduces disposal volume
Denser flake output takes up less space than loose cake, cutting landfill or further-processing costs.
See It In Action
Applications
Materials we have processed on this equipment.
Wastewater
Environment
ChemicalOur Company
Quality Management System
Global Compliance, Certified Excellence: All SINOTHERMO equipment complies with ISO9001:2015 standards, ensuring end-to-end quality control from R&D to final testing. Traceable processes and continuous optimization guarantee efficiency, durability, and compliance with EU/NA/Asian industrial regulations.

Advanced Production Facilities
Efficient Production Processes: We utilize optimized production processes and layouts to enhance production efficiency and ensure product quality.
Strict Quality Control: Every product undergoes rigorous quality inspections before leaving the factory to meet high standards.

Excellent Technology
Expert R&D Team: Comprising top industry experts, our R&D team continuously innovates and optimizes our products.
Patents and Certifications: Numerous technological achievements have received national patents and international certifications, highlighting our technical leadership.

Comprehensive Service Solutions
Highly Customizable Pre-sales Support: Our pre-sales team is dedicated to understanding your unique requirements and providing highly customizable solutions.
On-site Installation and Commissioning: Our skilled technical team provides on-site installation and commissioning services worldwide.
Comprehensive After-sales: Our after-sales service system is efficient, ensuring timely responses to customer needs and issues.

Facility Showcase
Our Changzhou manufacturing base and in-house testing laboratory — where we run your material before you commit to a machine.








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