Hidden Treatment, Visible Quality — LiDing Johkasou Systems for Residential Communities
For this residential project, multiple LiDing Johkasou systems in 2 m³/day and 3 m³/day capacities were installed to treat domestic wastewater from individual households, using biological treatment processes.
Item Detail
Application
Residential household wastewater treatment
Capacity
2 m³/day and 3 m³/day per unit
Configuration
Multiple Johkasou systems in parallel
Treatment Type
Domestic sewage (blackwater + greywater)
Installation
Underground, fully buried
Johkasou technology is a compact, decentralized, all-in-one sewage treatment system capable of treating both blackwater from toilets and greywater from kitchens and baths simultaneously . It uses a combination of anaerobic and aerobic biological processes to produce high-quality treated water .
LiDing’s Johkasou systems are engineered specifically for residential applications where centralized sewer infrastructure is unavailable or impractical . Each unit is factory pre-assembled and rigorously tested before shipment, ensuring consistent performance and eliminating on-site construction delays .
Key Features
Underground — Space-saving installation
Fully buried underground during construction, the systems preserve above-ground space for landscaping, living areas, or other uses. This design maintains the community’s appearance with no visible equipment clutter .
Compact — Ideal for decentralized treatment
With a small footprint and lightweight design, the systems are particularly suitable for areas where space is limited or vehicle access is restricted . A single unit occupies minimal area, reducing civil engineering investment.
Flexible — Multiple capacity options
The 2 m³/day and 3 m³/day capacities offer flexibility to match different household sizes and flow requirements. The modular design allows for flexible combination and layout according to the community’s actual sewage volume and site conditions .
Low-impact — Blends into the surroundings
Fully buried construction can be covered with soil for greening or laying lawn bricks, achieving good landscape effects . The system operates with low energy consumption and noise levels below 35dB , ensuring minimal disturbance to residents.
Low-maintenance
Constructed from high-strength, corrosion-resistant materials, each tank ensures long service life in underground environments while requiring only simple, regular maintenance . The biological treatment process delivers stable, consistent effluent quality meeting discharge standards .
Why Johkasou for Residential Projects
Johkasou technology has been widely adopted in Japan, where it serves over 11 million users as a vital part of the country’s social infrastructure alongside centralized sewer systems . Its proven track record of operational efficiency, compact design, and low energy consumption makes it particularly suitable for residential communities, villas, and areas where centralized sewer networks are not available .
The technology’s ability to be quickly installed and its effectiveness in treating domestic wastewater at the source make it a cost-effective and sustainable approach to improving sanitation, especially in rapidly developing areas . LiDing builds on this foundation, adapting the technology to meet the specific needs of residential projects worldwide.
A Proven Approach
This installation demonstrates how multiple smaller systems can work in parallel to serve a residential community effectively. Each household receives reliable, on-site wastewater treatment, while the community benefits from environmental protection and sustainable water management. LiDing’s end-to-end support — from on-site construction guidance to long-term after-sales technical consultation and warranty service — ensures stable and smooth operation throughout the equipment’s lifecycle .
