Rice farming landscapes across Southeast Asia generate vast quantities of agricultural residues every year, particularly rice straw. Much of this biomass remains underutilised or is burned in fields, contributing to air pollution and greenhouse gas emissions.

bioTRANSCAPE explores a circular bioeconomy platform that transforms rice straw and agricultural residues into renewable gas, bio-based chemicals and advanced bio-materials through integrated industrial pathways.

The initiative aims to connect agricultural biomass resources with emerging renewable energy systems and bio-based materials industries.

The Opportunity

Rice straw is one of the most abundant agricultural residues globally. Each year hundreds of millions of tons are produced across Asia, yet much of this biomass remains unused.

Instead of treating rice straw as agricultural waste, it can be transformed into a strategic resource for renewable energy systems, circular materials and bio-based industrial supply chains.

The bioTRANSCAPE initiative explores how agricultural residues can be integrated into circular biomass platforms combining renewable gas production, biorefinery processing and advanced materials manufacturing.

Rice straw is one of the most abundant agricultural residues in the world. Across Asia, hundreds of millions of tons of rice straw are produced every year as a by-product of rice farming.

Despite this large biomass resource, rice straw is often underutilised or burned in agricultural fields. This represents both an environmental challenge and an untapped opportunity for circular bioeconomy systems.

The bioTRANSCAPE initiative explores how rice straw can become a valuable feedstock for renewable energy, biochemical production and advanced bio-based materials.

Global Biomass Availability

Rice is one of the most widely cultivated crops globally. As a result, rice straw is produced in extremely large volumes across major rice-growing regions.

Southeast Asia alone generates substantial quantities of rice straw each year, creating a significant biomass resource that can support renewable energy systems and bio-based industries.

By developing structured biomass supply chains, these agricultural residues can be transformed into valuable inputs for circular bioeconomy platforms.

Industrial Biomass Potential

Rice straw contains several components with industrial value, including:

• cellulose and hemicellulose suitable for biochemical processing
• lignin and carbon suitable for advanced carbon materials
• silica suitable for specialty materials used in rubber, filtration and advanced manufacturing

These characteristics make rice straw a promising feedstock for integrated biomass utilisation pathways.

Environmental Opportunity

In many rice-producing regions, open burning of rice straw remains a common practice after harvest. This practice contributes to air pollution and greenhouse gas emissions.

Transforming rice straw into renewable energy and industrial materials offers an alternative pathway that can reduce agricultural burning while generating new economic opportunities.

Resource for Emerging Bioeconomy Systems

As the global economy moves toward renewable energy and circular materials, agricultural residues such as rice straw may become strategic feedstocks for emerging bioeconomy industries.

Through integrated biomass platforms, rice straw can contribute to renewable gas systems, biorefinery processes and advanced bio-based materials production.

Platform Architecture

bioTRANSCAPE is designed as a modular circular bioeconomy platform consisting of four integrated components:

bioMASS
Regional biomass supply chains collecting rice straw and agricultural residues.

bioMET
Production of biomethane through anaerobic digestion using agricultural biomass.

bioREFINE
Extraction of biochemical compounds from biomass through biorefinery processes.

bioMAT
Production of advanced bio-based materials such as silica and activated carbon derived from rice straw.

Biomass Resource

Rice straw is produced in large quantities across Southeast Asia. While traditionally considered a low-value residue, rice straw contains valuable industrial components including cellulose, lignin and silica.

These components can be processed into a wide range of energy and material products.

Biomethane Production

Agricultural residues can be converted into renewable biomethane through anaerobic digestion.

Rice straw can be combined with complementary substrates such as:

cassava processing residues
livestock manure
agricultural organic wastes

Biomethane produced through this process can supply renewable gas systems for transport, industry and energy infrastructure.

Circular Nutrient Flows

Digestate generated from biomethane production can be returned to agricultural soils as organic fertiliser, helping improve soil fertility and nutrient cycling.

This circular approach supports both renewable energy production and soil regeneration.

Biochemical Extraction

Rice straw contains biochemical compounds such as phenolics, fibres and other organic molecules that can be extracted through biorefinery processes.

These compounds can be used in food, feed and industrial applications.

Carbon Materials

Through thermal processing such as pyrolysis and activation, rice straw can be converted into carbon-based materials including activated carbon used in filtration, environmental treatment and industrial processes.

Silica Materials

Rice straw naturally contains silica which can be recovered from biomass ash.

Purified silica can be used in industrial applications such as:

rubber additives
battery materials
specialty materials for advanced manufacturing

Renewable Biomethane

Rice straw can be converted into renewable gas through anaerobic digestion systems when combined with complementary organic substrates such as cassava processing residues or livestock manure.

Upgraded biomethane can be used for:

• renewable transport fuels
• industrial energy supply
• gas grid integration

Renewable gas systems can play an important role in the transition toward low-carbon energy infrastructure.

Biochemical Products

Rice straw contains cellulose and hemicellulose that can be processed through biorefinery technologies to produce biochemical compounds.

Potential products include:

• bio-based industrial ingredients
• natural polymers
• fermentation feedstocks

Such materials can support the development of sustainable chemical and bio-based product industries.

Carbon-Based Materials

Through thermal processing such as pyrolysis and activation, rice straw can be converted into carbon-based materials.

Examples include:

• activated carbon for filtration systems
• carbon materials for environmental applications
• advanced carbon materials for industrial processes

These materials are widely used in water treatment, air purification and industrial filtration systems.

Silica-Based Materials

Rice straw naturally contains silica that can be recovered through controlled thermal and chemical processing.

Purified silica derived from rice straw can be used in:

• rubber and tyre industries
• specialty materials manufacturing
• advanced industrial applications

Rice straw therefore represents a potential source of bio-based silica materials.

Cascading Biomass Utilisation

The combination of renewable energy production, biochemical extraction and materials processing enables cascading biomass utilisation.

In such systems, agricultural residues are used across multiple value streams, maximising resource efficiency and supporting circular bioeconomy development.

Regional Biomass Hubs

The initial development phase focuses on establishing regional biomass hubs that collect and process agricultural residues such as rice straw.

These hubs function as local infrastructure nodes connecting farmers, biomass logistics and renewable energy production systems.

Each hub may process approximately:

100,000 – 300,000 tons of biomass per year.

Regional Circular Biomass Networks

As multiple biomass hubs are established within agricultural regions, they can form interconnected regional biomass networks.

These networks enable coordinated biomass supply chains, shared processing infrastructure and integrated renewable energy systems.

Such regional systems improve biomass logistics efficiency and strengthen rural circular bioeconomy ecosystems.

Industrial Bioeconomy Clusters

Over time, regional biomass platforms may evolve into industrial bioeconomy clusters that integrate:

renewable biomethane production
biorefinery processing
advanced bio-based materials manufacturing

These clusters can process more than:

1 million tons of biomass annually.

Such industrial systems demonstrate how agricultural residues can support emerging circular bioeconomy industries while strengthening rural economies.

International Technology Collaboration

The development of circular biomass platforms requires collaboration across multiple technology areas including renewable gas systems, biomass biorefinery technologies and advanced materials processing.

International cooperation with European innovation ecosystems, including Dutch technology partners, may support feasibility development and technology exchange.

The bioTRANSCAPE initiative aims to explore how agricultural biomass resources can support the development of scalable circular bioeconomy systems linking agriculture, renewable energy and bio-based industries.

Reduction of Agricultural Burning

Open burning of rice straw remains a major environmental challenge in many rice-producing regions. Converting rice straw into renewable energy and industrial materials can significantly reduce the need for agricultural residue burning, helping improve air quality and reduce particulate emissions.

By establishing regional biomass collection systems, agricultural residues can be redirected from waste streams into productive circular bioeconomy pathways.

Renewable Energy Production

Through anaerobic digestion and biomethane upgrading, agricultural biomass can be transformed into renewable gas suitable for transport, industrial energy systems and energy infrastructure.

Renewable biomethane can help reduce reliance on fossil fuels while supporting the development of low-carbon energy systems.

Circular Biomass Utilisation

The bioTRANSCAPE platform is designed around the concept of cascading biomass utilisation, where agricultural residues are used across multiple value streams including renewable energy, biochemical extraction and advanced materials production.

This integrated approach maximises resource efficiency while reducing biomass waste.

Soil Regeneration and Nutrient Recycling

Digestate produced from biomethane systems can be returned to agricultural soils as organic fertiliser, improving soil fertility and nutrient cycling.

This supports the transition toward regenerative agricultural practices and strengthens long-term soil productivity.

Contribution to Climate and Circular Economy Goals

By integrating renewable energy production, circular materials processing and sustainable agricultural practices, the bioTRANSCAPE platform contributes to broader climate and circular economy objectives.

Such systems demonstrate how agricultural landscapes can become part of future renewable energy and bio-based industrial systems.

Technology Areas

Potential areas of collaboration include:

biomethane and renewable gas systems
biomass biorefinery processes
advanced bio-based materials development

Feasibility Development

The initiative currently explores feasibility development for regional biomass platforms that integrate renewable gas production, circular materials processing and agricultural biomass supply chains.

International Cooperation

Guidance from organisations such as the Netherlands Enterprise Agency may help identify relevant programmes supporting feasibility development and collaboration with Dutch innovation partners.