About FirstGate
Since 2001, FirstGate has focused on one mission: eliminating industrial odour at its source. When strict environmental regulations demanded new solutions, we collaborated with industry leaders to create D-LIMO — a proprietary OIL WATER technology that neutralizes odour molecules safely and sustainably.
We are not a general supplier. We specialize in advanced, plant-based odour control for industries where odour affects operations, community relations, and compliance. Our systems are built on decades of field experience and scientific partnerships, ensuring long-lasting performance with minimal maintenance.

The Challenge: Odour in Wastewater Treatment Plants
Wastewater treatment is essential—but the odours it produces don’t have to be. Hydrogen sulfide, ammonia, and organic decay gases can create nuisance smells, leading to:
- Community complaints
- Regulatory fines
- Unpleasant working conditions
- Damage to your facility’s reputation
Traditional chemical masking or expensive scrubbers only cover up the problem. FirstGate tackles odour at the molecular level—eliminating it for good.
Our Solution: Plant-Based Odour Neutralization
We use natural, plant-oil-based formulas that neutralize odour molecules—not mask them. Our D-LIMO system and Greenology® products work through:
- Adsorption & Absorption: Odour molecules are captured and broken down.
- Chemical Neutralization: Plant oils react with gases like H₂S and NH₃, converting them into non-odorous salts.
- Source Treatment: Applied directly to odour sources—headworks, sludge basins, lagoons, or exhaust stacks.
Benefits for Your Plant:
- ✅ Effective: Proven 98.7% odour reduction in independent tests.
- ✅ Safe: Non-toxic, biodegradable, safe for workers and the environment.
- ✅ Cost-Efficient: Lower operational costs than chemical scrubbers or carbon filters.
- ✅ Compliance: Helps meet environmental regulations and reduce community complaints.
- ✅ Sustainable: Plant-based, with near-zero carbon footprint.
Proven in Real Projects
Our wastewater treatment solutions are trusted by West Africa’s leading institutions:
Lagos Waste Management Authority (LAWMA) – We partnered to reduce odour emissions at key waste transfer stations, cutting community complaints and improving air quality for workers.
Hospitality & Government Clients – While focused on industrial wastewater, our same technology ensures odour-free environments for clients like Transcorp Hilton Abuja, Gombe State House of Assembly, and Eko Hotel & Suites.
Current Major Proposal: Rivers State – We’ve submitted a comprehensive odour control plan for public sewage systems, treatment plants, and drainage networks in Port Harcourt—showing our scalable approach to municipal wastewater challenges.
How It Works in Your Plant
- Assessment: Our engineers identify odour sources—headworks, primary clarifiers, sludge storage, or exhaust vents.
- System Design: We design a custom application method: vapor dispersion, atomized misting, direct injection, or spray gel for sludge caps.
- Installation & Monitoring: We set up equipment (nozzles, fans, dosing systems) and train your team. We monitor results and adjust as needed.
- Long-Term Support: Scheduled maintenance and product supply ensure ongoing odour control.
Why Choose FirstGate for Wastewater Odour Control?
- Specialized Expertise: We understand wastewater processes and odour chemistry.
- Proprietary D-LIMO Technology: Developed specifically for industrial odour challenges.
- International Standards: Partnered with Greenology® (USA/UK) for certified, lab-tested formulas.
- Proven Track Record: From hotels to municipalities, our results are verified.
- Eco-Friendly Priority: 100% plant-based, non-hazardous, and safe for aquatic life.
Take the First Step to an Odour-Free Facility
Stop covering up odours. Eliminate them—safely, sustainably, and cost-effectively.
📞 Contact FirstGate today for a free site assessment and odour audit.
Let our engineers show you how plant-based technology can transform your wastewater treatment environment.
📧 Email: info@firstgateglobe.com
📞WhatsApp no: 08077881101
📍 Office: Suite 11, Golden Gate Plaza, 32 African Church Road, Ifako-Ijaiye, Lagos
🌐 Website: www.firstgate-odourcontrol.com
FirstGate Odour Control – Engineering Clean Air, Naturally.
