Contaminated, hard-to-treat wastewater
For wastewater containing chemicals or contaminants that cannot be discharged directly.
Custom Manufacturing & Import Sludge Dewatering Machines
(Sludge Treatment System) for Industrial Plants
Upgrade your high-sludge wastewater management with a Sludge Treatment System combining sludge dewatering machines and sludge dryers — reducing sludge volume by up to 90%, cutting disposal costs, and maximizing value for your plant.
Problems
Sludge disposal bills every month, with no way to avoid it
Every treatment system produces sludge that is 95–99% water, heavy and bulky.
Hauling and disposal can cost hundreds of thousands to millions of baht per month.
95-99% of your sludge weight is "water" that you pay to haul away for nothing, every month
Hydrosys designs and builds sludge dewatering machines, matching the right technology to each plant to cut disposal costs and energy use.
Consult Us Our Solutions Make sludge disposal easier to manage
Make sludge disposal easier to manage
with a Sludge Treatment System
Handle waste cake efficiently with innovations that cut volume, weight, and cost, turning liquid waste into dry, easy-to-handle cake with maximum added value.
Sludge Dewatering Machine
Presses water out of sludge with compression or screw force, turning treatment-system sludge into dry, easy-to-handle cake with maximum added value.
- Turns liquid sludge into semi-dry cake
- Cuts waste volume by up to 10×
- Saves on hauling and disposal costs
Sludge Dryer
Uses heat to dry sludge cake into powder, cutting final weight or turning the cake into a value-added by-product.
- Dries cake into powder
- Turns waste into value
- Can run on recovered waste heat
Sediment Management Procedures The sludge management process with
The sludge management process with
dewatering machines and dryers
End-to-end sludge management, from dewatering to drying. Cuts waste volume and handling costs, with the flexibility to adopt only the steps your plant needs.
01
High-sludge wastewater
Sludge leaving treatment still holds high water content, so its volume and weight are the starting burden before disposal.
02
Dewatering
A dewatering machine or Screw Press presses water out, leaving roughly 70–85% moisture and cutting cake volume to haul by up to 10×.
03
Drying
Semi-dry cake is dried into powder at roughly 30% moisture, cutting weight another 4–5×. The clean cake can be put to further use.
Industries suited to sludge dewatering machines
Every wastewater treatment system generates sludge that must be disposed of. Dewatering machines suit industries with high sludge volumes that want lower cake-disposal costs, especially these groups.
Our Solutions From Consultation
From Consultation
to After-Sales Service
Hydrosys covers design through after-sales, so your system runs efficiently, meets standards, and repays your investment.
Consultation
Wastewater analysis and system design by specialist engineers.
System Manufacturing
Custom-built: materials, sizing, and functions matched to your wastewater.
Import & Distribution
World-class equipment imported and delivered straight to you.
After-Sales Service
Ongoing care and maintenance by our expert technicians.
Why Hydrosys
What Sets Hydrosys Apart
From sludge analysis and technology selection to installation and after-sales service, we make sludge management simpler, cheaper, and better performing.
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We analyze the sludge first: hard chemical or lime sludge calls for a Filter Press, soft or greasy sludge suits a 24-hour Screw Press.
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Structures adapt to your site, with tall stands or shorter plates for tight spaces, plus options rivals rarely offer such as automatic washing and plate-shaking cake release.
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Our dryers recover plant waste heat, such as steam or stack air, to cut electricity costs, or run on 100% electric power.
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Full-size demo units and lab testing help you decide before buying, plus rental units covering repairs or upgrades.
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The dryer recirculates heat internally with no air intake or exhaust, solving odor and dust problems.
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A 1-year warranty, our own PM team ready on-site immediately, and spare parts made in-house in Thailand.
Free Wastewater Testing
Plus Backup Equipment Rental
Send a wastewater sample for free lab testing and we will match the right equipment. Rental units keep your system running during maintenance.
Our ProductsSludge Dewatering Machines
Sludge Dewatering Machines
and Sludge Dryers
A complete range of sludge-handling equipment for dewatering and moisture reduction in wastewater treatment — boosting system performance in industrial plants.
EQUIPMENT
View DetailsPolymer Preparation Unit
The HydroPolymer HDF Polymer Preparation Unit is for automatic preparation of polyelectrolyte solution at a concentration of 0.05–0.2%, supporting preparation rates of 500–10,000 L/hr, with a 3-chamber tank for dissolving, maturing and storing/dosing the solution. It is suitable for use together with sludge dewatering systems and DAF to consistently improve sludge flocculation efficiency.
DEWATERING
View DetailsFilter Press
The Filter Press / Plate & Frame Filter Press is a sludge pressing machine that uses high pressure to separate solids and liquids, producing sludge with low moisture, generally around 50–70%. It supports operation from manual to fully automatic systems and offers optional extras such as Membrane Squeeze and an automatic filter cloth washing system. It is suitable for applications that require efficient reduction of sludge moisture.
DEWATERING
View DetailsScrew Press
Screw Press (Volute Dewatering Press) is a sludge dewatering machine that separates solids and liquids by the mechanical pressing action of a screw and rings, without using heat. It consumes little energy, approximately 1–5 kW per unit, operates continuously 24 hours, runs quietly and does not clog easily. Suitable for dewatering biological sludge, chemical sludge and food waste.
DEWATERING
View DetailsDecanter Centrifuge
Decanter Centrifuge is a centrifugal sludge dewatering machine that separates solids and liquids by high-speed centrifugal force. It handles sludge concentrations of approximately 2,000–30,000 ppm and produces a dry sludge cake of approximately 20–30% DS. It operates continuously in a closed system and supports high throughput in a limited space, suitable for industrial applications requiring speed and continuous operation.
DEWATERING
View DetailsBelt Filter Press
Belt Filter Press is a belt-type sludge dewatering machine that continuously separates water from sludge by the pressing and shear forces between a pair of belts running over rollers. It produces a dry sludge cake of approximately 18–25% DS from feed sludge with a concentration of 0.8–4%. Suitable for systems with large sludge volumes that require continuous operation with low energy consumption.
DEWATERING
View DetailsSludge Dryer
Sludge Dryer/Low-Temperature Sludge Dryer is a sludge drying machine using a heat pump at temperatures below 70°C, helping reduce the weight and volume of sludge, with a heat recovery system to save energy. The closed system helps control odour and vapour, leaving the sludge dry, easy to handle and extendable towards a Zero Liquid Discharge (ZLD) approach.
Our Process Ordering a Sludge
Ordering a Sludge
Dewatering Machine
We manage every step, from wastewater analysis and system design to production, installation, and commissioning by specialist engineers.
01
Consult & Analyze
Tell us your on-site problem for an initial consultation and system assessment from our engineers.
02
Free Wastewater Lab Testing
We analyze your plant’s wastewater in the lab to select the most suitable treatment method.
03
System Design & Spec Selection
We design the system and select equipment to match your wastewater characteristics.
04
Quotation
We calculate costs and prepare a quotation with full specifications for your review.
05
Contract & Production
Once design and price are agreed, sign the contract and place the order; production then begins.
06
Delivery
When production is complete, we deliver the machinery to your site.
07
After-Sales Care
Covered throughout the warranty period, typically one year (or as stated in the contract). If anything goes wrong, our team is ready to help.
Find Your Solution Need the Right Solution
Need the Right Solution
for Your Plant?
Hydrosys designs, manufactures, and supplies end-to-end water treatment systems for a wide range of wastewater challenges, keeping water management cost-effective.
Existing system fails effluent standards
If BOD, COD, or TSS levels still exceed the limits, an advanced treatment system can boost performance.
Cut water costs and reuse your water
Turn effluent back into a resource with a Water Reuse & Recycling system.
Debris reaching your main treatment system
Screens out solids, grease, and suspended matter before the main system, reducing clogging and easing the load on your primary equipment.
FAQ
Still Have Questions? Ask Us Common Questions
About our wastewater treatment
systems and related equipment
How much moisture is left after sludge dewatering?
A filter press leaves roughly 70% (±5%) and a screw press roughly 85% (±5%), depending on the sludge type and water conditions.
Is polymer needed for dewatering?
Usually yes — polymer helps the sludge flocculate so more water can be pressed out. The filter press is the exception and can run without it.
Which pump feeds sludge into a filter press?
A high-pressure pump such as a diaphragm, screw, or gear pump. A standard water pump will not work because around 10 bar of pressure is required.
Can liquid sludge go straight into the dryer without dewatering?
No. It must be dewatered first so it forms a damp cake with lower moisture — otherwise liquid runs straight through the machine.
Does a sludge dryer use a lot of electricity?
Consumption is fairly high, but Hydrosys machines can run on waste heat already available in your plant — steam or hot air — which cuts electricity use considerably.
