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Project meeting to review the CAPEX breakdown, investment requirements and priorities for a planned recycling plant
Three-dimensional engineering model of a plastics recycling plant
Operator monitoring the sorting process in a running recycling plant
Hands holding freshly produced recyclate pellets
ENGINEERING. OPERATIONS. BUSINESS.

Engineering for
Efficient Recycling

We combine engineering expertise, operational experience, and commercial insight to deliver recycling facilities that are technically robust and economically viable.

Industrial-sized, market-ready solutions are our core competence: we have designed, built, operated and optimized recycling facilities.

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IWZ=Engineering+Operations+Business Understanding

High-Performance Engineering for Industrial Plants
  1. 01 Concept & Engineering
  2. 02 Project Execution
  3. 03 Stable Operations
  4. 04 High-Quality Recyclates
30+ Years of experience
€ 620m+ in Supported Investment
360° Engineering · Operations · Business
Our Recycling Impact live
285,000.000 t of recyclate Lasting impact: achieved through plants we have engineered, operated, and continuously optimized.
– t CO₂e avoided Based on a conservative average of 0.85 t CO₂e avoided per tonne of recyclate across all polymer types.
+264 t / day
// SERVICES

Engineering for the Entire Plant

IWZ ecoprojects provides engineering services for mechanical plastics recycling, from initial concept and permit/allowance phase to detailed engineering, project execution, commissioning, and process optimization. Our expertise covers polyolefins (films and rigid plastics) and PET, with clear focus on producing high-quality recyclates that meet demanding quality and market requirements.

01

Plant Engineering

Full plant engineering of mechanical recycling core processes for Polyolefins and PET, from process definition to detailed engineering of every part of the plant. Cross-linked with supporting systems, including wastewater treatment, material storage, and residual waste handling.

02

Process Engineering

Proven and innovative process concepts for the recycling of polyolefins and PET. Every stage of the process, from pre-shredding and sorting to washing, extrusion, and filtration, is analysed, engineered, and optimized to achieve consistently high-quality recyclates.

03

Project Management

End-to-end project management from initial concept and feasibility stage to engineering, project execution, and commissioning. We coordinate all project stakeholders and ensure efficient schedule, cost, and quality management throughout the project. Our services include the full permitting process, from early consultation with the relevant authorities and permit applications to ongoing coordination and regulatory support throughout the project.

04

Environmental Engineering & Infrastructure

Sustainability, safety, and regulatory compliance are integrated from the outset. We design wastewater treatment systems, closed-loop water and material circuits, and the infrastructure required for modern recycling plants, delivering safe, compliant, and economically viable solutions.

05

Fire Protection & Plant Safety

Fire protection is a critical aspect of recycling plant design, directly affecting insurability, permitting, and operational availability. Contaminants such as lithium batteries or pressurized gas containers can ignite during shredding, while dust and plastic films can accelerate fire spread. We develop comprehensive fire protection concepts for both new and existing recycling plants, from risk assessments and early fire detection to extinguishing systems, fire compartmentation, and organizational safety measures. In close collaboration with specialized engineering partners, we coordinate approvals with authorities and insurance companies to ensure safe, compliant, and insurable facilities.

06

Feedstock Supply & Residual Material Recovery

We analyse available feedstock streams, develop sourcing strategies, and assess material quality to ensure a reliable supply of the right input materials, based both on spot market and long term contracting. For residual materials generated during the recycling process, we identify recovery and utilization opportunities that reduce disposal costs and retain value within the circular economy.

07

Process Optimization

We take a holistic approach to analysing and optimizing existing recycling processes, both operationally and technically. Our focus is on increasing throughput and plant availability, reducing energy and water consumption, and improving recyclate quality. We also optimize the use of additives, processing aids, and process chemicals. Through our Performance Check, we identify untapped potential and develop tailored measures for more efficient, profitable, and sustainable plant operations.

08

Compliance & CE Conformity

We support companies in achieving CE conformity for new plants from the earliest stages of an investment project while also helping optimize existing facilities to meet current legal and regulatory requirements. Our services include the preparation of comprehensive plant documentation, including operating procedures, work instructions, maintenance concepts, inspection documentation, and technical records, ensuring safe, compliant, and efficient plant operation.

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// PROJECTS

Current Projects

IWZ ecoprojects is currently involved in a wide range of challenging projects in mechanical plastics recycling, covering the entire process and plant lifecycle, from analysing existing facilities and developing new concepts to optimizing complex processes under real operating conditions. Due to the competitive nature of our industry, project-specific information remains confidential. The examples below illustrate the breadth of our expertise and the technical depth of our ongoing work.

POLYOLEFINS Polyolefin Film Recycling Line
Confidential Project

Polyolefin Film Recycling Line

Engineering of a processing line for post-consumer polyolefin films, from sorting and washing to extrusion and melt filtration, designed to deliver consistently high-quality recyclates.

PET PET Recycling Plant
Confidential Project

PET Recycling Plant

Development of an integrated process and plant concept for the production of high-quality PET recyclates, featuring optimized material flow, efficient washing technology, and comprehensive quality assurance.

INFRASTRUCTURE Fire Protection Upgrade for an Industrial Facility
Confidential Project

Fire Protection Upgrade for an Industrial Facility

For an industrial client, we are currently managing the implementation of a comprehensive fire protection upgrade. The project is designed to bring preventive and structural fire protection measures in line with current requirements while ensuring uninterrupted plant operation. Our scope includes technical project coordination, alignment of all project stakeholders, and supervision of implementation through to successful completion. Particular emphasis is placed on integrating the fire protection measures into existing production processes, minimizing disruption to ongoing operations. Through structured project management and close collaboration with specialist engineering partners and contractors, we deliver sustainable, future-proof fire protection solutions.

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From Waste to Resource

Reclaimed for the Circular Economy

We engineer recycling plants that transform plastic waste into high-quality recyclates, keeping valuable materials in the circular economy.

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// ABOUT US

Practice beats theory. Built on Real-World Experience

We take a holistic approach to recycling, from initial vision and concept to commercially successful operations.

End-to-End

Comprehensive engineering for the entire plant, from initial concept and technology to commissioning.

Owner-Operator Experience

We did not just design recycling plants; we have run them ourselves and taken responsibility for their technological and commercial success.

Supply Chain Expertise

From feedstock sourcing and logistics to storage and the marketing of high-quality recyclates.

Resource Efficiency

Optimizing energy, water, labour, and capital to maximize plant availability and long-term profitability.

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Ready to Realize Your Project?

Whether you're planning a greenfield facility, expanding an existing plant, or optimizing current operations, we provide the engineering expertise to support your project from concept to commissioning.

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