Here is How India & Japan Re-Use Wastewater Using Johkasou Technology



India's water demand is predicted to grow at a 2.8 percent compound annual growth rate (CAGR), with a supply shortfall of 50 percent by 2030, according to a study titled, “Arresting India’s Water Crisis: The Economic Case for Wastewater Use.” Among the fundamental problems is the lack of freshwater resources. While the same, wastewater is observed to be highly underutilized. The study says that 85 percent of untreated wastewater from 110 of its populous cities could meet the demand for 75 percent of industrial water by 2025.

Untreated wastewater is dumped directly into the local environment and water bodies in the majority of rural communities. This results in contamination of both surface and subsurface water, leading to significant consequences for the ecosystem and human health. The amount of wastewater dumped has increased in rural areas as the water supply for home uses has improved significantly over time. To reduce the problem of contamination, adequate wastewater management systems must be implemented in rural regions. Currently, India and Japan are the latest to join forces in the areas of Decentralized Domestic Waste Water Management.

How the Process Will Take Place?

Decentralized Domestic Wastewater Management and Effective Reuse of Treated Wastewater Using Johkasou Technology are two areas where a partnership with Japan through the MoC (Memorandum of Cooperation) will be profitable. A Management Council will be constituted to oversee the implementation of this Memorandum of Understanding by establishing detailed cooperative activities and monitoring its progress.

In addition to the similar situation under the Namami Gange Program, the decentralized Johkasou systems for wastewater management may have greater implications for the management of grey/black water from settlements covered by the Jal Jeevan Mission, as well as the sustainability of freshwater sources covered by the mission. It will assist ULBs in better planning for the complicated issue of wastewater treatment.

Cracking Down Johkasou and its Relevance

Purification tank is what Johkasou means in Japanese. A Johkasou is a machine that uses the power of microorganisms found naturally within the equipment to sterilize contaminants in wastewater. In Japan, Johkasasou was created as a decentralized domestic wastewater treatment facility. It is still one of the greatest wastewater treatment options in locations where sewage infrastructure has not yet been developed around the world. Long Product Life, High Efficiency, Modular Design, No Requirement for a Full-Time Operator, Low Energy Consumption, Low Maintenance Requirement, and Faster Execution with No Noise and No Foul Smell at Sites are some of the essential features of this technology.

A septic tank, anaerobic filter, contact aeration, final settling tank, and effluent disinfection facility are all part of the system. The Japanese government has certified Daiki Axis Johkasou goods, and they are widely used throughout Japan as part of official policy.

The fundamental principle behind Johkasou is to process and reuse garbage on-site.


Farm Houses, Hospitals, Hostels, Resorts, Hotels, Offices, Factories, Shopping Malls, Small Airports, Railway Stations, Gardens, Sports Complexes, and similar applications are ideal for Daiki Axis Johkasou STPs.

The membrane-based Johkasous are appropriate for applications requiring greater treated water quality. The Indian Government’s Ministry of Jal Shakti has appointed Daiki Axis Johkasou to work on Jal Jeevan and the Swachh Bharat Mission. It's also listed in the CPHEEO Manual as an advanced technology for treating grey and black water on-site. Johkasou was also named the winner of FICCI's most innovative water technology award for 2020. The systems have been updated to remove even more nitrogen by internal recirculation of naturally occurring microbes.

Daiki Axis India recently inked a Memorandum of Understanding (MOU) with IIT Roorkee for technology validation. Under the Make in India initiative, the company has already established a manufacturing factory in Vapi, Gujarat, and has completed over 200 projects across the country.

Daiki Axis India and Johkasou Paving Way 

Daiki is laying the groundwork for a world-class water resource recovery system in India by constructing decentralized Johkasou STPs. The Daiki Axis Johkasou concept is to treat and reuse water bodies on a local level. Daiki Axis Johkasou is an appropriate answer for India's current water constraint situation.

The Daiki Axis Johkasou is a long-lasting wastewater treatment system that is also environmentally benign. The decentralized sewage treatment approach has helped reduce pollution in India's water bodies to a great extent, and states are looking into implementing it.

Decentralized STPs from Daiki Axis Johkasou are modular, easily scalable, and easy to install anywhere – below or above ground. STPs from Daiki Axis Johkasou have a sound level of fewer than 50 decibels, similar to that of a mobile phone vibration. Daiki Axis Johkasou is a well-known, tried-and-true decentralized STP that is the most cost-effective and long-term solution for the Indian market.

It's a smarter wastewater treatment system that not only helps recycle water but is also a cost-effective way to revitalize the country's parks and green belts.

Back to the Latest MoC

Under this MoC, neither party will have any financial obligations. Case-specific detailed documents, such as Pre-Feasibility Reports, Feasibility Reports, and Detailed Project Reports, may be created to facilitate the activities under this MOC. It covers detailed specifications in the respective areas as well as other pertinent matters, such as the financial arrangement of such case-specific program and project, if deemed necessary.

On March 19, the two countries signed a Memorandum of Collaboration to promote cooperation for Decentralized Domestic Wastewater Management in protecting the water environment in public water regions and improving public health, based on the principles of equality and mutual benefit.

Why Treat Wastewater at All?

Wastewater treatment is linked to the water cycle and, hence, impacts the environment. Rural water is either turned into sewage or contaminated with chemicals and other pollutants. Before it can be released back into the environment, it must be treated. While nature can handle a tiny bit of wastewater, consider the massive volume produced every day before it is discharged back into the environment.

Health and the environment are two significant reasons for prioritizing this often-overlooked area: health. Human health, agriculture, marine life, wildlife, and our food chain, to mention a few, can all be harmed by a contaminated water system.

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