OTAR® - Organics Thermal Ammonia Recovery

Bypass Surcharges and Meet Australian Nitrogen Limits Head-On

Achieve down to 10 mg/L TN with our OTAR® system, delivering a proven 95%–98.5% removal efficiency for high-strength food waste, industrial wastewater, and leachate.

Engineered for Proven Reliability:

25+ Years of Engineering Excellence | 17 Operational Plants Worldwide | 98.5% Proven Removal Efficiency

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The Compliance Challenge

The Pressure Is On for Australian Wastewater Operators

Surging Trade Waste Fees: High-ammonia discharges face crippling mass-charging rates (like Sydney Water’s $2.707/kg Nitrogen), driving up operational costs.
The $N_2O$ Carbon Liability: Traditional biological systems vent nitrous oxide ( $N_2O$ )—a gas 300× more potent than $CO_2$ . Under updated NGER reporting guidelines, these fugitive emissions ruin net-zero auditing.
Biological Vulnerability: Standard bacteria cultures are highly sensitive and easily killed by volatile ammonia shock loads, chemical toxicity, or winter temperature drops.

Landfill Leachate Management

Treat complex leachate on-site. Eliminate expensive trucking networks and discover the true baseline cost of ammonia stripping for landfill leachate.

Food Waste & Centralised Anaerobic Digestion (AD)

Ensure process stability by protecting biological reactors from ammonia shock load. Maximize methane yields and realize a clear fertilizer ROI.

Refineries & Heavy Industry

Engineered configurations optimized for volatile, high-temperature streams, maximizing ammonia removal from refinery sour water Australia wide.

OTAR®

Wastewater Treatment at a Glance

System Performance: 95% – 98.5% $NH_3$ Removal
Feedstock Limits: Handles high-strength streams from 500 mg/L up to 10,000 mg/L $NH_4-N$
Resource Recovery: Produces high-concentration aqueous ammonia (up to 25% $NH_4OH$ ) or ammonium sulfate liquid/crystal fertiliser.
Energy Profile: Thermally driven via low-pressure steam or hot water ( $90^\circ\text{C} - 95^\circ\text{C}$ ); consumes only $0.15 - 0.25\text{ kWh}$ of electrical energy per cubic meter treated.

Choosing the Right Wastewater Treatment Technology

Compared with standard biological treatment infrastructure, the non-biological OTAR® system combines direct cost-effectiveness, high energy efficiency, and a reduced carbon footprint, ensuring facilities remain compliant and competitive under shifting Australian frameworks.

Comparison Table between OTAR® and other technology

Technology	Typical Cost (GBP/kg-N)	Chemical Use	Carbon & Compliance Impact	Notes / Suitability
OTAR® (Thermal Ammonia Recovery)	≈ 0.45	Uses waste heat, no caustic/acid	Avoids N₂O emissions, reduces carbon footprint, supports EPA compliance	Proven, modular, ideal for high-N sidestreams & landfill leachate
pH-Adjusted Thermal Stripping	≈ 1.30	Requires caustic & acid	Moderate GHG reduction, higher operating costs	Chemical handling and disposal required
Biological Nitrification-Denitrification (BNR)	≈ 2.95	Needs aeration & carbon source	Generates N₂O (≈300× CO₂ warming), high energy demand	Common but increasingly challenged by carbon rules
Anammox Biological Process	≈ 2.25	Sensitive biological process	Lower energy than BNR but still emits some N₂O	Limited by stability and site conditions

FAQ

How do industrial facilities meet the strict 5 mg/L TN discharge standard in Australia?

Consistently maintaining total nitrogen effluents below 5 mg/L requires separating high-strength nitrogen side-streams before they dilute or disrupt primary treatment lines. Utilizing OTAR ammonia recovery system benefits allows industrial operators to mechanically isolate, strip, and capture ammoniacal nitrogen upstream. This bypasses biological vulnerabilities entirely to secure uninterrupted environmental compliance with regional authorities like Sydney Water, South East Water, or the Queensland EPA.

What is the baseline cost of ammonia stripping for landfill leachate treatment networks?

Operational expenditure for leachate stripping is traditionally dictated by heavy chemical consumption. The OTAR® system minimizes the ongoing cost of ammonia stripping for landfill leachate by deploying a thermally driven process. By capitalizing on existing site waste heat or high-efficiency internal heat exchangers, the system removes the requirement for expensive pH-altering chemicals, reducing typical lifecycle processing costs by up to 60–80% compared to biological aeration grid setups.

Is the OTAR® ammonia recovery system a proven technology for commercial-scale deployment?

Yes. Unlike unproven pilot-scale systems, the OTAR® system is backed by over 25 years of industrial engineering experience and 17 operational plants worldwide. Developed by the Organics Group, the technology handles high-strength wastewater profiles (ranging from $500\text{ mg/L}$ up to $10,000\text{ mg/L } NH_4\text{-N}$ ) across municipal, food waste, and landfill networks. This extensive global track record ensures that every deployment meets strict Australian mechanical, safety, and performance standards.

Why Act Now

Strict Limits Are Active: Tighter discharge permits and EPA compliance reporting are already being enforced across Sydney, Melbourne, Brisbane, and Perth industrial corridors.
New Revenue Streams: Shifting away from biological infrastructure allows you to convert a mass-charged waste liability into a profitable, high-value fertilizer product.
Future-Proof Operations: On-site mechanical stripping insulates your facility against future utility fee hikes and protects your infrastructure from toxic process shock.

Calculator: Discover Your System Outputs with OTAR

Enter your flow rate and nitrogen levels to project your custom project metrics:

Resource Recovery: Daily ammonia capture ( $kg/\text{day}$ ), Hydrogen production ( $\text{tons/year}$ ), and target outlet ( $mg/L$ ).
Energy Profile: Required thermal ( $kWth$ ) and electrical ( $kWe$ ) loads.
Financials: Projected annual OPEX, simple payback period, and estimated Project IRR (%).
Technology Comparison: Performance mapped directly against biological BNR, ion exchange, or steam stripping.

Use the OTAR® Calculator

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Turn Your Ammonia Liability into a Resource

Join the bioenergy operators utilizing on-site thermal recovery to insulate their facilities against biological failure, capture new fertilizer revenue streams, and future-proof their environmental compliance.

Product briefing : On-site Thermal Ammonia Recovery (OTAR)

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