Waste Water Management (STP)
Why Johkasou-STP is the Most Suitable Wastewater Treatment Solution for India
The Johkasou Sewage Treatment Plant (STP) presents a highly suitable and future-ready solution tailored to India’s unique needs and infrastructure challenges. Unlike conventional wastewater treatment systems, Johkasou-STP offers distinct advantages in terms of modularity, scalability, and operational efficiency.
Key Advantages Over Conventional Systems
- Modular & Scalable: Easily deployable block by block or building by building, making it ideal for both urban and semi-urban settings. The system can grow with increasing demand.
- Low CAPEX & OPEX: Designed for affordability, Johkasou systems require minimal capital investment and offer significantly lower operational costs over time.
Advanced Features & Benefits
- High-Performance Treatment: Delivers consistent, reliable wastewater treatment even in variable load conditions.
- Ease of Maintenance: Equipped with a spacious sludge separation box, enabling convenient sludge collection during routine maintenance—typically required just once every six months.
- Customizable Output Capacity: Available in three models to meet diverse wastewater treatment needs.
- Nutrient Removal: Effectively eliminates harmful nutrients, improving water quality and reducing environmental impact.
- Energy Efficient: Operates on low power, making it environmentally and economically sustainable.
- Long Lifespan: Built for durability and long-term service, with consistent performance across its lifespan.
An Overivew of Wastewater Treatment Processes
Preliminary Treatment
- Objective:To remove large solids and debris to protect downstream equipment.
- Process:Wastewater flows through progressively finer screens, which filter out materials like plastics, rags, and large particles
- Outcome:Prevents clogging and damage in pumps and piping
Primary Treatment
- Objective:To settle out solids and reduce organic load.
- Process:
- Wastewater enters a sedimentation tank.
- Sludge collection mechanisms at the bottom remove heavier solids.
- Lighter materials float and may be skimmed off.
- Clear water flows over the effluent weir.
- WAS (Waste Activated Sludge) is removed for further treatment.
- Outcome:Removes ~60% of suspended solids and ~30–40% of BOD (biochemical oxygen demand).
Secondary Treatment
- Objective:To biologically treat wastewater and remove dissolved and suspended organic matter.
- Process:
- Microorganisms break down organic matter in an aeration basin or bio-reactor.
- Sludge settles in a secondary clarifier.
- Some sludge (WAS) is removed, and a portion is returned to maintain microbial population (RAS – Return Activated Sludge).
- Outcome:Significant reduction of BOD, nutrients, and pathogens.
Tertiary Treatment
- Objective:Advanced treatment to remove residual contaminants, nutrients, and solids.
- Process includes:
- Thickening of remaining sludge.
- Digestion to stabilize and reduce volume.
- Gas utilization, where biogas (e.g., methane) is captured for energy.
- Dewatering to reduce sludge water content before disposal or reuse.
- Outcome:Produces high-quality effluent suitable for reuse or sensitive discharge environments.
Sludge Treatment
- Thickening to reduce volume.
- Anaerobic digestion to stabilize organic matter and generate biogas.
- Gas utilization for energy generation.
- Dewatering to prepare for disposal, composting, or incineration.
Discharge/Reuse
- Objective:Safely return treated water to the environment or reuse it.
- Options:
- Treated water is directed into various multipurpose reuse pathways.
- Reuse options may include agriculture, industry, landscaping, or recharge of water bodies.
- Each pathway has associated treatment requirements and quality criteria based on end-use standards.