Packaged Sewage Treatment Plant (STP)

A Packaged Sewage Treatment Plant (STP) offers a compact, efficient solution for treating wastewater. These systems are designed for easy installation and operation, making them ideal for a variety of settings. Their modular design allows for scalability, adapting to different capacities and requirements. With advanced treatment processes, they ensure high-quality effluent suitable for discharge or reuse. Packaged STPs represent a modern approach to wastewater management, combining practicality with environmental responsibility.

Daiki Axis India

Daiki Axis India, a subsidiary of the Japanese multinational Daiki Axis, has been at the forefront of providing sustainable wastewater treatment solutions customized to Indian conditions. With a strong focus on innovation and environmental sustainability, it leverages its parent company’s decades of expertise in Johkasou technology to address India’s wastewater challenges.

Understanding Johkasou Technology

Johkasou is a Japanese term that translates to “purification tank.” This technology, developed in Japan, is designed for the on-site treatment of domestic wastewater. The Johkasou system is a compact, decentralized wastewater treatment solution that can effectively treat sewage from households, commercial buildings, and small communities.

Daiki Axis Johkasou Features

Here are some key features typically associated with Daiki Axis Johkasou systems:

  • Decentralized Treatment: On-site wastewater treatment for areas without centralized facilities.
  • Compact Design: Space-efficient, suitable for diverse locations.
  • Advanced Technologies: Biological treatment and filtration for effective contaminant removal.
  • Modular: Customizable components for different treatment needs.
  • Energy Efficient: Incorporates energy-saving features for cost and eco-friendliness.
  • Remote Monitoring: Allows remote monitoring and adjustments for efficient operation.
  • Odour Control: Measures in place to minimize unpleasant odours.
  • Reliable & Durable: Built to last with strong materials and minimal maintenance.
  • Compliance & Certification: Meets regulatory standards for wastewater treatment.

Daiki Axis Johkasou Products

Daiki Axis India offers a diverse product range in environmental engineering, including:

  1. Johkasou Systems: These compact sewage treatment plants are designed for decentralized wastewater treatment, suitable for residential, commercial, and small community use. They integrate advanced biological treatment processes to reduce environmental impact and promote water reuse.
  2. Packaged Sewage Treatment Plants (STPs): Pre-engineered systems tailored for easy installation and operation, ideal for small to medium-sized establishments like hotels, resorts, schools, and hospitals. They provide reliable wastewater treatment to meet local discharge standards.
  3. Greywater Treatment Systems: Designed for sustainable water management, these systems treat wastewater from showers, sinks, and washing machines for reuse in non-potable applications such as toilet flushing and landscape irrigation. They are compact and suitable for residential, commercial, and institutional settings.
  4. Water Recycling and Reuse Systems: These systems recycle and reuse treated water, contributing to water conservation efforts and sustainable practices.

The Treatment Process of Johkasou Packaged STP

  1. Primary Treatment: Involves physical processes such as screening to remove large solids, sedimentation to settle out suspended solids, and sometimes flotation to remove fats, oils, and grease. This stage mainly focuses on separating and removing solid materials from wastewater.
  2. Secondary Treatment: Utilizes biological processes to further treat the wastewater. This typically involves activated sludge processes or trickling filters, where microorganisms break down organic matter into harmless byproducts like carbon dioxide and water. Secondary treatment aims to reduce the concentration of organic pollutants and pathogens in the wastewater.
  3. Tertiary Treatment: The final stage of treatment that goes beyond primary and secondary processes to remove remaining impurities. This may include advanced filtration methods like sand filtration, chemical treatment such as disinfection using chlorine or ultraviolet (UV) light, or additional biological processes like activated carbon adsorption. Tertiary treatment ensures that the effluent meets stringent water quality standards before discharge or reuse.

Application and Uses of Johkasou Packaged STPs

  • Environmental Compliance: The treatment process is crucial for ensuring that wastewater meets regulatory standards before being discharged into the environment. It helps prevent pollution of water bodies and protects ecosystems and public health.
  • Resource Conservation: Wastewater treatment enables the recovery and reuse of water and valuable resources like nutrients and organic matter. Treated water can be used for irrigation, industrial processes, and even potable purposes in some cases, reducing the demand for freshwater sources.
  • Public Health and Safety: Proper wastewater treatment plays a vital role in safeguarding public health by removing harmful contaminants, pathogens, and pollutants from wastewater. It helps prevent the spread of waterborne diseases and ensures a safe and sustainable water supply for communities.

The Concept of Packaged STPs

Packaged STPs are pre-engineered and pre-fabricated treatment plants that are compact, modular, and easy to install. These systems offer several advantages over traditional wastewater treatment plants, including:

  1. Ease of Installation: Packaged STPs are delivered as complete units or modules, significantly reducing the time and complexity of installation.
  2. Cost-Effectiveness: The modular nature of these plants means they can be scaled up or down as needed, offering cost savings compared to large, centralized treatment plants.
  3. Low Maintenance: Designed for minimal maintenance, packaged STPs require less operational oversight, making them suitable for remote or underserved areas.
  4. Flexibility: These plants can be deployed in various settings, including residential complexes, commercial establishments, industrial facilities, and rural areas.

Daiki Axis India’s packaged STPs integrate Johkasou technology, ensuring high efficiency and reliability. These systems are designed to meet stringent effluent standards, thus protecting water bodies from contamination.

Performance of Daiki Axis Johkasou

Daiki Axis Johkasou systems are renowned for their exceptional performance in decentralized wastewater treatment. Their compact design, coupled with advanced biological treatment processes, ensures efficient removal of contaminants and pollutants from sewage. These systems demonstrate high reliability and durability, providing consistent and effective treatment for residential, commercial, and small community applications.

Daiki Axis Johkasou systems excel in on-site treatment, effectively treating sewage directly at the source. This approach minimizes the need for transporting wastewater to centralized treatment plants, reducing logistical challenges and costs. Furthermore, these systems facilitate water reuse at the site of treatment, enabling treated water to be utilized for non-potable purposes such as irrigation, toilet flushing, and industrial processes. This dual capability of treating and reusing water at the site enhances overall efficiency, sustainability, and resource conservation, making Daiki Axis Johkasou systems a preferred choice for decentralized wastewater management.

The Environmental and Economic Impact

Implementing packaged STPs across India can have profound environmental and economic benefits. By treating wastewater locally, these systems reduce the burden on existing infrastructure and minimize the environmental impact of untreated sewage. Clean water bodies can rejuvenate local ecosystems, improve public health, and enhance the quality of life for communities.

Economically, the deployment of packaged STPs can create jobs in manufacturing, installation, and maintenance. Additionally, by improving water quality, these systems can support industries like agriculture and fisheries, which rely heavily on clean water.


India’s wastewater crisis is a formidable challenge, but it also presents an opportunity to implement sustainable and innovative solutions. Daiki Axis India, with its expertise in Johkasou technology and packaged STPs, is making significant strides in this field. As the nation progresses, the significance of efficient wastewater management cannot be emphasized enough. With continued support from the government, industry, and communities, solutions like those offered by Daiki Axis India can pave the way for a sustainable future, ensuring that clean water is available for all and that India’s water bodies are protected for generations to come.


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