Turning Waste into Biochar in Central Java

TruCarbon is excited to present the Rice-Husk Biochar Carbon Project, an impactful initiative that tackles both climate change and agricultural challenges in Central Java, Indonesia. By converting common agricultural waste into high-value biochar, we are generating essential carbon removal credits while providing tangible benefits for local farmers.

The Harm of Rice-Husk Residues

In regions like Central Java, the standard methods for handling rice husk residues are environmentally harmful and costly for farmers.

  • The emissions problem

Most agricultural waste is either left to decompose or, worse, burned in open fields. This practice releases significant greenhouse gases, specifically CO2, CH4, and N2O, which contribute to climate change and air pollution that endanger community health.

  • The soil problem

Farmers often rely on excessive inorganic fertilizers, which raises their production costs and damages the fundamental structure of the soil over time.

So We Turn Agricultural Waste into a Resource

Our project proposes a cleaner, smarter, and more profitable solution: agricultural waste itself is the solution.

We use a process called pyrolysis, which is the thermochemical decomposition of biomass (rice husks) in a high-temperature, low-oxygen environment. This process achieves two major goals:

  • Stops Emissions: It prevents the rice husks from decaying or being burned, hence avoiding the release of GHGs.
  • Creates Biochar: It produces a stable, carbon-rich material called biochar. Biochar effectively removes carbon from the atmosphere and sequesters it durably in the soil.

When applied to the fields, the biochar functions as a soil amendment, dramatically improving soil quality. Our pilot site data from a region Central Java (2024) shows the immediate impact on farmers:

  • 12.5% increased yield
  • 15% improved water usage efficiency.
  • 20% improved usage rate of inorganic fertilization.

Project Overview

  • Project Location: Central Java, Indonesia
  • Feedstock: Rice Husk, sourced from local milling operations.
  • Feedstock Availability: The five contributing villages provide an estimated annual available husk of 973.11t/year, which is abundant compared to the designed annual feedstock requirement of 240t/year for the Phase 1 plant
  • Designed Capacity (Phase 1): The BST-06 pyrolysis machine is designed to process 100kg/hour.
  • Carbon Credit: Removal carbon credit.
  • Potential Removal: 3,000+ tCO2e/year.

Community-based Workflow

The entire project is structured under a community-based model to ensure traceability, cost-efficiency, and inclusivity.

  • Supply: Farmers aggregate and sell rice husk residues to local cooperatives.
  • Processing: The facility converts the rice husks into biochar and bio-oil through pyrolysis.
  • Value Return: Biochar and bio-oil are sold back to the farmers via the co-op at a discounted price for soil application. The improved yields from using biochar then lead to a greater volume of available feedstock, creating a sustainable loop.
  • Carbon Credit: The carbon credits generated are shared between the cooperative and TruCarbon.

Join Our CSR Program: Invest in Empowerment

To expand and replicate this model of rural empowerment, we are inviting partners to collaborate through our Corporate Social Responsibility (CSR) program.

The Pilot Phase (Phase 1):

  • Construction of the initial biochar production facility (BST-06 unit).
  • Local community empowerment programs.
  • Development of healthcare and sanitation facilities.

Project Expansion (Phase 2):

  • Procurement and installation of a larger biochar production unit (BST-50S)
  • Expansion of healthcare and sanitation facility development

Key Outcomes for Our Partners

  • You contribute to an initiative with a carbon sequestration potential of up to 687 tCO2e  annually.
  • You support the establishment of a powerful multistakeholder partnership model that is replicable across other regions of Indonesia.
  • You receive a comprehensive Impact Report covering climate impact, community livelihoods, and financial accountability.

Alignment with Global Goals

This project is a powerful model for achieving multiple Sustainable Development Goals (SDGs):


Now is the best time to start your impact!

Interested in being involved in this project? Let’s get connected!

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