Municipal Solid Waste Dewatering Screw Press, Gujarat, India

Municipal Solid Waste Dewatering Screw Press

Municipal Solid Waste Dewatering Screw Press

Managing the rising volume of municipal solid waste (MSW) is a growing challenge for urban centers. A large portion of this waste is organic in nature, and if not handled efficiently, it can lead to odor, leachate issues, and sanitation problems. The Dewatering Screw Press offers a highly effective solution by reducing the moisture and volume of organic waste before it enters the composting cycle or other forms of treatment.

Handling Real-World Organic Waste

In the projects we are currently working on, organic waste is collected from door to door by municipal bodies and wholesale agricultural markets. Post collection, the waste undergoes basic segregation to remove inorganic materials. However, it is nearly impossible to achieve 100% separation, especially with the varied and mixed nature of municipal waste.

The Dewatering Screw Press is engineered with these challenges in mind. It is capable of handling partially contaminated organic streams and is built to withstand the variability in composition, size, and moisture content that comes with real-world MSW.

Pre-Processing for Consistency

To achieve optimal dewatering, the collected waste is first processed through a hammer mill, which reduces the particle size to under 25mm. This size reduction ensures a more uniform and flowable slurry, which is crucial for consistent performance of the screw press. The slurry is then fed directly into the screw press for moisture extraction.

Send Enquiry

DeWatering Screw Press

Moisture and Volume Reduction

Once inside the press, the material undergoes a continuous squeezing process. In many cases, the moisture content is reduced from approximately 70–80% down to 50–55%, although this varies significantly based on the feed characteristics.

It is important to note that in applications such as municipal solid waste, defining a fixed outlet moisture level is not practical. The wide variability in material types—each with different levels of bound and free moisture—makes it difficult to provide a standard number. Instead, the success of these installations is generally evaluated based on volume reduction, which can also range depending on the organic content, particle size, and fiber structure of the waste.

Send Enquiry

Downstream Applications

The dewatered solid is sent to large-scale composting systems, where the reduced moisture helps accelerate the composting process and improves overall handling. Meanwhile, the liquid extracted by the press is treated and reused for land irrigation around the plant or safely released into water bodies in accordance with environmental regulations.

This closed-loop approach significantly reduces the cost of waste disposal, minimizes odor and leachate problems, and contributes toward creating sustainable and eco-friendly municipal operations.

Send Enquiry

Key Features and Benefits

Built to handle inconsistently sorted organic MSW.
Preceded by hammer mill for consistent feed size (under 25mm).
Substantial moisture and volume reduction achieved.
Reduces load on composting systems and accelerates processing.
Treated liquid reused or discharged per norms, reducing disposal costs.
ROI driven by lower transportation, drying, and landfill costs.
Performance is measured via volume reduction, not fixed outlet moisture.

Send Enquiry

Municipal Solid Waste Dewatering Screw Press, Gujarat, India