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Bio-INTS

The HINKTON biological integrated system (Bio-INTS) is an activated sludge process centered on the Simultaneous Nitrification and Denitrification (SND) technology. It achieves high-efficiency removal of BOD and total nitrogen at minimal energy consumption while maintaining continuous-flow treatment.With low DO operation, high-efficiency aeration system, Bio-INTS solution delivers 50% or greater energy savings over a conventional activated sludge process.

Design

Bio-INTS is a cyclic activated sludge composite system comprising:

• A low-dissolved-oxygen (DO) SND reactor for simultaneous nitrification and denitrification.
This reactor integrates the Retro-X Aeration Technology, featuring a self-cleaning function that ensures long-term stable and energy-efficient aeration operation. Its design allows for maintenance and replacement with system operating normally, significantly reducing operational complexity.

• A hybrid biochemical ALT reactor for enhanced pollutant degradation.
The ALT reactor is also an adjustable-capacity module that can be scaled based on project-specific requirements. Typically, the ALT reactor occupies only one-fourth the footprint of the SND reactor while significantly enhancing the system’s capacity to handle BOD and ammonia nitrogen removal. This design enables the system to meet elevated treatment capacity demands without compromising efficiency.

• A compact integrated clarifier for efficient solid-liquid separation and supernatant discharge.
It simplifies system architecture by eliminating internal sludge recirculation loops and instead employs a dedicated external circulation system to return activated sludge to biochemical reactors. It streamlines equipment configuration and reduce energy consumption.

Efficient Phases

BOD and Total Nitrogen Removal Phase

The HINKTON-CONTROL System precisely regulates DO at 0.5 ± 0.2 mg/L, maintaining a hybrid anoxic-aerobic environment within the reactor. This enables simultaneous BOD and nitrogen removal at minimal energy input.

Enhanced Treatment Phase (Adjustable based on effluent requirements)

Intensive bio-degradation reactions further enhance BOD and ammonia nitrogen removal efficiency, achieving stringent discharge standards.

Settling Phase

High-specific-surface-area bio-carriers reduce mixed liquor suspended solids (MLSS), improving sludge settling performance. The integrated clarifier enables efficient solid-liquid separation through gravity settling, with settled sludge automatically recycled back into the system.

Advantages

Ultra-low energy denitrification:
Achieves 50% energy savings compared to conventional nitrification/denitrification processes.
Space-saving footprint:
Common-wall construction allows for a compact footprint with the reduced need for external piping.
Enhanced bio-degradation:
Achieves80% BOD and NH3-N removal through ALT enhanced treatment phase.
Simplified infrastructure:
Eliminates internal recirculation, cutting capital expenses.
Improves carbon management, reduces chemical consumption:
Delivers50% total nitrogen removal, reducing operational costs.
High efficiency Retro-X aeration technology:
featuring a self-cleaning function that ensures long-term stable and energy-efficient aeration operation. Its design allows for maintenance and replacement with system operating normally, significantly reducing operational complexity.

Structure Diagram

The HINKTON biological integrated system (Bio-INTS) is an activated sludge process centered on the Simultaneous Nitrification and Denitrification (SND) technology. It achieves high-efficiency removal of BOD and total nitrogen at minimal energy consumption while maintaining continuous-flow treatment. With low DO operation, high-efficiency aeration system, Bio-INTS solution delivers 50% or greater energy savings over a conventional activated sludge process.

2 Key Technologies

HINKTON-CONTROL System

A hardware-software integrated platform that dynamically adjusts aeration based on real-time influent quality, DO, ORP, pH, and effluent data. Key features include:
• Feedforward control for load adaptation and process optimization.
• Precise DO maintenance at 0.5 ± 0.2 mg/L to balance energy use and treatment efficiency.
• Self-cleaning automation via pressure feedback for aeration equipment.
• Seamless integration with plant SCADA systems.

HINKTON-CONTROL System

Retro-X Unbeatable Aeration System Technology

• High Efficiency (SOTE 45%):
Proprietary perforation technology generates 1 mm micro-bubbles at low airflow rates, significantly increasing gas-liquid contact area and retention time for enhanced mass transfer. With a bubble average size of 1 mm – smaller than the accepted definition of fine and low airflow rates, the air will be diffused into small volumes with the highest interfacial surface. It significantly increases gas-liquid contact area and retention time which makes aeration system SOTE 45%.
• Energy Optimization:
Internally unsupported hose structure minimizes flow resistance. With low head loss and high SOTE, Retro-X delivers 30% or lower energy consumption performance compared to conventional aeration system.
• Self-Cleaning Mechanism:
Dual-layer air distribution system with automated valve control enables periodic hose expansion/contraction cycles, preventing biofouling and maintaining95% aeration efficiency over 8+ years.
• Non-Stop Maintenance:
Modular hose design allows on-the-fly replacement via sliding extraction, eliminating downtime during repairs.
• Extended Service Life:
Municipal wastewater: 10+ yearsIndustrial wastewater: 8+ years (Very good resistance to grease, oil and chemicals. Extremely tear-resistant and abrasion-resistant)

Retro-X System Site Engineering Drawing

Engineering drawing of Retro-X system aeration effect

Retro-X self-cleaning system

Case Studies

Sulzer mixers designed to tackle digested

The wastewater treatment plant of Crispijana, operated by the municipal water and sewage company Amvisa...

Sulzer mixers designed to tackle digested

The wastewater treatment plant of Crispijana, operated by the municipal water and sewage company Amvisa...

Sulzer mixers designed to tackle digested

The wastewater treatment plant of Crispijana, operated by the municipal water and sewage company Amvisa...

Sulzer mixers designed to tackle digested

The wastewater treatment plant of Crispijana, operated by the municipal water and sewage company Amvisa...

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Sales and Service: Address: Suzhou Industrial Park · Suzhou, Jiangsu, China; Email: contact@hinkton.com; Phone: +86 52386886998

Product & Solution: Aeration Technology; SED Biological Technology; HINKTON MBBR Technology; HINKTON IFAS Technology

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