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Industrial, Biomass & Municipal Sludge Drying

Wealthfrom Waste.Guaranteed.

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Reduce.
01

Drop moisture content from 80% to 10–20%. Volume shrinks 5–10×. Hauling cost falls 60–75%.

Reuse.
02

Dried biosolids become soil amendment, biomass fuel, or compost feedstock. Liability becomes a product.

Revalue.
03

What was a cost center becomes a revenue line. ESG targets get a measurable story.

Industries We Serve

If it has water in it,
we've dried it.

🏭
Payback: 2–4 Years
Municipal WWTP & Biosolids
Volume reduction for landfill cost avoidance.
🌾
Payback: 2–3 Years
Food & Beverage Processing
Spent grain, brewery sludge converted to animal feed.
⚗️
Payback: 2–3 Years
Chemical & Specialty Chemicals
Filtercake moisture reduction for stable handling.
📄
Payback: 1– Years
Pulp, Paper & Textile
ETP sludge drying. Live references in India.
💊
Payback: Custom
Pharmaceuticals
Closed-system drum dryers for ETP sludge.
⛏️
Payback: 2–3 Years
Metals, Mining & Biomass
Iron ETP sludge, tailings, agro-waste.
The Beltotherm Technology

Belt dryers built for 24/7
industrial sludge operation.

Technical Specifications — Belt Dryer
Capacity Range10–100 TPD
Input Moisture40–85% (wet basis)
Output Moisture<3–25%
Heat SourceElectric / Oil / Steam / Gas / Flue Gas / Thermic Fluid
Belt MaterialSS 304 / Woven Wire
Operating ModeContinuous 24/7
Control SystemPLC + HMI / Manual
Typical Payback1–3 Years
Installations112+ Global Delivered
⚙️
Continuous Operation
Not batch. Engineered for continuous 24/7 operation.
🌡️
Multi-Zone Temperature Control
Independent heating zones with PID control.
⚡
Any Heat Source
Steam, gas, thermic fluid, electricity, or waste flue gas.
Proven Results

Real plants. Real numbers.
Not projections.

GSPBL · India · Paper & Boards
Primary sludge: 1,500 kg/hr
Belt dryer installed for belt press sludge, repeat order secured.
2
plants delivered ·
RGWL · India · Metals
Iron ETP sludge: 70% → 10% moisture.
Running on Waste flue gas — zero incremental fuel cost.
0
incremental
fuel cost
JCPL · India · Sanitaryware
ETP Sludge Thermic Fluid — Paddle Dryer.
Paddle dryer for ETP sludge, Tharmic Fluid Pack, Diesel Fired.
75%
volume reduction
BFFEL · INDIA · Biomass / Renewable Energy
Saw Dust: 50% →12% moisture
Firewood-fired furnace delivers consistent drying performance for biomass fuel production.
3000
kg / hour Input
NGIL · INDIA · Gelatin Manufacturing
Filter Press Sludge: 70% → 10%
Waste flue gas utilized for sludge drying with zero additional fuel cost, reducing disposal costs and improving plant sustainability.
10%
final
moisture
NLFP · USA · Ingredients / Food Processing
Cranberry Pomace: 70% → 8% moisture.
Single steam-based band dryer replacing multiple drying systems.
7–8 ×
Higher
Drying Capacity
GSPBL · India · Paper & Boards
Primary sludge: 1,500 kg/hr
Belt dryer installed for belt press sludge, repeat order secured.
2
plants delivered ·
RGWL · India · Metals
Iron ETP sludge: 70% → 10% moisture.
Running on Waste flue gas — zero incremental fuel cost.
0
incremental
fuel cost
JCPL · India · Sanitaryware
ETP Sludge Thermic Fluid — Paddle Dryer.
Paddle dryer for ETP sludge, Tharmic Fluid Pack, Diesel Fired.
75%
volume reduction
BFFEL · INDIA · Biomass / Renewable Energy
Saw Dust: 50% →12% moisture
Firewood-fired furnace delivers consistent drying performance for biomass fuel production.
3000
kg / hour Input
NGIL · INDIA · Gelatin Manufacturing
Filter Press Sludge: 70% → 10%
Waste flue gas utilized for sludge drying with zero additional fuel cost, reducing disposal costs and improving plant sustainability.
10%
final
moisture
NLFP · USA · Ingredients / Food Processing
Cranberry Pomace: 70% → 8% moisture.
Single steam-based band dryer replacing multiple drying systems.
7–8 ×
Higher
Drying Capacity
GSPBL · India · Paper & Boards
Primary sludge: 1,500 kg/hr
Belt dryer installed for belt press sludge, repeat order secured.
2
plants delivered ·
RGWL · India · Metals
Iron ETP sludge: 70% → 10% moisture.
Running on Waste flue gas — zero incremental fuel cost.
0
incremental
fuel cost
JCPL · India · Sanitaryware
ETP Sludge Thermic Fluid — Paddle Dryer.
Paddle dryer for ETP sludge, Tharmic Fluid Pack, Diesel Fired.
75%
volume reduction
BFFEL · INDIA · Biomass / Renewable Energy
Saw Dust: 50% →12% moisture
Firewood-fired furnace delivers consistent drying performance for biomass fuel production.
3000
kg / hour Input
NGIL · INDIA · Gelatin Manufacturing
Filter Press Sludge: 70% → 10%
Waste flue gas utilized for sludge drying with zero additional fuel cost, reducing disposal costs and improving plant sustainability.
10%
final
moisture
NLFP · USA · Ingredients / Food Processing
Cranberry Pomace: 70% → 8% moisture.
Single steam-based band dryer replacing multiple drying systems.
7–8 ×
Higher
Drying Capacity
"
"The commissioning engineer meticulously inspected and tested each component to ensure optimal functionality and performance. The equipment demonstrated reliable operation, efficient drying capabilities."
Mr. Mahesh Dwivedi-Technical Director, Gayatrishakti Paper & Boards Limited
"
"We confirm that the system is operating satisfactorily and meets the agreed technical specifications.We appreciate the professional approach, technical competence, and dedicated support extended during installation and commissioning."
Mr. Siddharth Kedia-Partner, Bharat Fuel Fusion Energy LLP
"
"We would also like to thank you for supplying us machines which produced product met the quality as per expectations. We also like to recommend GEM equipments for the paddle dryer plant."
Mr. Vijay Mohan Singh-Factory Manager, Jaquar & Co. Pvt. Ltd.
"
"I would like to thank you for your teamwork, your sincerity, and for your unending professional support. We look forward to a long lasting and mutually rewarding relationship."
Todd Heeg & Tim Heeg-Co-Presidents, Northern Lights Food Processing, LLC
"
"The installation and commissioning of the dryer for ETP sludge was carried out seamlessly. Their skilled technicians ensured that the equipment was installed according to specifications and industry standards."
Anil Kumar Mr. Sinha-Technical Director, Rajratan Global Wire Ltd.
"
"The machine showed reliable operation, compliance to necessary benchmarks for performance, and preparedness for continuous output."
Mr. Randell Philip Oljhol-General Manager, Oriental Golden Coco INC
"
"The commissioning engineer meticulously inspected and tested each component to ensure optimal functionality and performance. The equipment demonstrated reliable operation, efficient drying capabilities."
Mr. Mahesh Dwivedi-Technical Director, Gayatrishakti Paper & Boards Limited
"
"We confirm that the system is operating satisfactorily and meets the agreed technical specifications.We appreciate the professional approach, technical competence, and dedicated support extended during installation and commissioning."
Mr. Siddharth Kedia-Partner, Bharat Fuel Fusion Energy LLP
"
"We would also like to thank you for supplying us machines which produced product met the quality as per expectations. We also like to recommend GEM equipments for the paddle dryer plant."
Mr. Vijay Mohan Singh-Factory Manager, Jaquar & Co. Pvt. Ltd.
"
"I would like to thank you for your teamwork, your sincerity, and for your unending professional support. We look forward to a long lasting and mutually rewarding relationship."
Todd Heeg & Tim Heeg-Co-Presidents, Northern Lights Food Processing, LLC
"
"The installation and commissioning of the dryer for ETP sludge was carried out seamlessly. Their skilled technicians ensured that the equipment was installed according to specifications and industry standards."
Anil Kumar Mr. Sinha-Technical Director, Rajratan Global Wire Ltd.
"
"The machine showed reliable operation, compliance to necessary benchmarks for performance, and preparedness for continuous output."
Mr. Randell Philip Oljhol-General Manager, Oriental Golden Coco INC
"
"The commissioning engineer meticulously inspected and tested each component to ensure optimal functionality and performance. The equipment demonstrated reliable operation, efficient drying capabilities."
Mr. Mahesh Dwivedi-Technical Director, Gayatrishakti Paper & Boards Limited
"
"We confirm that the system is operating satisfactorily and meets the agreed technical specifications.We appreciate the professional approach, technical competence, and dedicated support extended during installation and commissioning."
Mr. Siddharth Kedia-Partner, Bharat Fuel Fusion Energy LLP
"
"We would also like to thank you for supplying us machines which produced product met the quality as per expectations. We also like to recommend GEM equipments for the paddle dryer plant."
Mr. Vijay Mohan Singh-Factory Manager, Jaquar & Co. Pvt. Ltd.
"
"I would like to thank you for your teamwork, your sincerity, and for your unending professional support. We look forward to a long lasting and mutually rewarding relationship."
Todd Heeg & Tim Heeg-Co-Presidents, Northern Lights Food Processing, LLC
"
"The installation and commissioning of the dryer for ETP sludge was carried out seamlessly. Their skilled technicians ensured that the equipment was installed according to specifications and industry standards."
Anil Kumar Mr. Sinha-Technical Director, Rajratan Global Wire Ltd.
"
"The machine showed reliable operation, compliance to necessary benchmarks for performance, and preparedness for continuous output."
Mr. Randell Philip Oljhol-General Manager, Oriental Golden Coco INC
Commercial Models

Own it. Or let us operate it.

Capital Purchase
Own the Asset.
Own the Upside.
Full capex · Maximum long-term ROI
  • →Direct equipment purchase — FOB Kolkata
  • →Payback typically 2–4 years from avoided hauling
  • →1-year warranty + commissioning + training included
  • →All co-product revenue belongs to your plant
BOOT / OPEX Model
Zero Capex.
Guaranteed Output.
Build-Operate-Own-Transfer · via Revalox
  • →Finance finance, installs, and operates the dryer
  • →You pay per tonne of sludge dried — no capital outlay
  • →A complete Drying-as-a-Service (DaaS) solution
  • →Asset transfers to client at end of contract
The Beltotherm Process

Four steps from sludge to recovered resource.

Most clients move from first conversation to a running dryer in 6–10 months.

01
Discovery
Understand Your Sludge
30-minute call. Map your sludge stream, current disposal cost, and capacity.
02
Pilot Trial
Send Us a Sample
Moisture trials at Kolkata pilot plant. Back within 5 working days.
03
Sizing & ROI
Right Machine. Real Numbers.
Financial model with your actual cost inputs. Payback, IRR, avoided costs.
04
Build & Commission
Manufacture, Install, Train.
12–16 weeks manufacture, installation, commissioning, 1-year warranty.

Your sludge
is not a problem.
It's an asset.

  
Get In Touch

Turning Waste Stream into a Revenue System

Reduce Disposable Costs by up to 90%, Recover Resources, and Achieve Sustainable Operations with Advanced Sludge Drying Technology

Reduce Waste
Recover Value.

REACH US AT :
+91 98311 73874(WhatsApp available)
Headquarters
10/C Middleton Row, 3rd Floor
Kolkata 700071, India
Response Time
Within 5 working days · Technical specification & pricing included
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