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Ocean

Waste Water Treatment for Small and Medium Sized
Food and Beverage Processors

Waste to Resource
           Local to Global

Food and drink production can generate wastewater up to 50 times the volume of the final product. This wastewater often contains a high concentration of organic materials, nutrients, and other pollutants, making effective management and treatment strategies vital for economic and environmental sustainability in the sector.

Wastewater disposal is costly and labour-intensive. Small and medium sized companies (SMEs)—who make up 90% of the companies in the food and beverage processing industry!— rely on outsourced trucking that can consume 5-30% of the operational costs.

 
6 unit KAPPA water treatment system, tank and control panel

  6 unit

| OUR SOLUTION

The KAPPA (Kompact Advanced Anaerobic Processing for Pollutant Abatement) system is a cost-effective, highly efficient natural wastewater treatment system, based on a microbial fuel cell revolutionized by cutting edge patented technology. 

The modular design of these systems allows for installation in locations unsuitable for conventional wastewater treatment systems. This flexibility makes customization to various needs possible and enables fast deployment with minimal disruption to ongoing operations.
A single unit can process 50 to 100L a day depending on the wastewater COD. It eliminates up to 95% of the organic substances in the wastewater leaving only 2.5-5% sludge behind. CO2 emissions are negligible. Compared to trucking, operational costs are cut by up to 30%.

With  few consumable or mechanical parts, KAPPA is designed to last, offering robustness, efficiency, and adaptability. Currently, all systems are hand made in Okinawa by our team. 
Cost and CO2 reduction with KAPPA waste water treatment system
Watasumi KAPPA installation at the Whisky destillery Kamui
Your benefits with Watasumi KAPPA
Contact Us for Free On-site Consultation,
Estimates and Leasing Options
(Virtual Outside Mainland Okinawa)​
| TECHNOLOGY
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KAPPA is a fundamentally enhanced anaerobic treatment system for high-strength biological wastewater. By harnessing the inherent energy within the wastewater, KAPPA operates sustainably with minimal external electricity required solely for pumping and system initiation. This approach enhances both cost-effectiveness and environmental sustainability.
Key innovations include specially designed, patented internal electrodes that enhance Direct Interspecies Electron Transfer. This process enables bacteria to break down organic matter efficiently while simultaneously harvesting and releasing energy as electrons. These electrons are then utilized by methanogens and converted into methane (biogas) at a consistent rate. A remainder can even be harvested as electricity.
Watasumi KAPPA treatment, how it works
Watasumi KAPPA treatment, sludge remainder compared to commonly used treatment
KAPPA is capable of converting 80% of the energy contained in the wastewater into electricity while eliminating 95% of the organic substances present in the wastewater. Compared to conventional treatment systems only a fraction of sludge remains after the process.
This process goes beyond recycling; it maximizes the value of the wastewater by recovering not only the resource itself but also the energy within the wastewater that would otherwise be lost. 

This technology is the product of more than 10 years of research with collaborators around the world.

Our gratitude goes to our partners in Okinawa, who generously offered us their sites for crucial feasibility experiments.

OUR R&D PARTNERS

Mizuho Shuzo

Mizuho Distillery 
Naha

Zampa Shuzo

Higa Distillery
Yomitan

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