Plastic Recycling Wastewater Case: 10m³/h Wastewater Reuse & Sludge Dewatering Solution

The Global Imperative: A Growing Industry Faces a Critical Challenge

The global plastic recycling industry is experiencing unprecedented growth, driven by powerful regulatory and market forces. Key international policies, such as the European Union's mandate to incorporate 25% recycled content in PET bottles by 2025 and similar Extended Producer Responsibility (EPR) schemes worldwide, are creating a massive demand for high-quality recycled plastic. Concurrently, major multinational corporations have made ambitious public commitments; for instance, numerous signatories to the Ellen MacArthur Foundation's Global Commitment pledge to use an average of 26% post-consumer recycled plastic in their packaging by 2025. This convergence of policy and corporate action is not just shaping the market—it's fundamentally scaling the industry.

However, this rapid scaling exposes a critical and universal operational bottleneck: complex wastewater treatment. The process of washing post-consumer plastics generates a challenging effluent stream laden with microplastics, adhesives, oils, and organic contaminants. Efficiently treating this water to enable safe discharge or, ideally, closed-loop reuse is no longer optional—it is a prerequisite for sustainable, compliant, and profitable operations. The ability to manage this waste stream effectively is what separates leading recyclers from the rest.

Project Showcase: A Tailored 10m³/h Wastewater Reuse & Sludge Dewatering Solution

We implemented a complete, skid-mounted wastewater treatment system designed to tackle these exact challenges. The goal was clear: transform 10m³/h of contaminated wash water into reusable water and dry, disposable sludge.

How the System Tackles the Challenge:

- Coagulation & Flocculation

- High-Efficiency Lamella Clarification

- Sludge Dewatering via Filter Press

- Fully Automated PLC Control

The Journey of the Project

1.Skid-mounted in the factory

2.Loading and delivering

3.Installation

4.Commissioning

5.Sludge mixing

6.Clear filtrate after treatment

7.Filter plates discharging Sludge Cakes

8.Moisture content of sludge cakes below 50%

For plastic recyclers, effective wastewater management is no longer just an auxiliary concern—it is a core component of a viable, sustainable, and profitable operation. Investing in the right treatment technology is key to turning this challenge into a competitive advantage.