High-Efficiency Exhaust Gas Treatment System for Seawater Desalination Projects in Coastal Africa

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All-in-One Emission Control – Powering Sustainable Agriculture and Desalination

Mauritania and Namibia, as coastal nations facing severe freshwater scarcity, are accelerating seawater desalination projects. These facilities typically rely on large diesel generators, which emit harmful exhaust gases such as black smoke, NOx, and SO₂—posing risks to both the environment and onsite personnel.

Our all-in-one exhaust gas treatment solution is tailor-made for such applications:
Covers black smoke removal, NOx reduction, and desulfurization in one system;
Treated emissions meet or exceed the world’s strictest environmental standards;
CO₂-rich exhaust can be redirected into greenhouses as carbon fertilizer, enhancing crop growth;
Fully supports 1.5 MW diesel generators and daily 1,000 m³ desalinated water output.

Technical Solution Overview：
Based on our successful pilot system implemented in Beijing, we offer a complete and modular exhaust treatment process:
DOC (Diesel Oxidation Catalyst): Effectively removes CO and partial hydrocarbons;
SCR (Selective Catalytic Reduction): Utilizes 32.5% urea solution or ammonia water to reduce NOx, achieving 93–95%+ removal efficiency;
Waste Heat Recovery Unit: Lowers exhaust temperature, improving energy efficiency;

Greenhouse Integration: Processed exhaust is introduced into the greenhouse to elevate CO₂ levels, accelerating photosynthesis and increasing yield.

Our system offers an integrated solution that simultaneously removes multiple pollutants—including black smoke, NOx, and SO₂—ensuring clean exhaust emissions that meet and even exceed top-tier international environmental standards.
By recovering CO₂ from treated exhaust and introducing it into greenhouses, we create a dual benefit: reducing emissions while enhancing agricultural productivity. The system is built with a modular design, drawing on proven deployment experience, and can be rapidly adapted to coastal regions like Mauritania and Namibia. With full compatibility for 1.5 MW generator exhaust loads, it reliably supports both seawater desalination and greenhouse agriculture around the clock.
In essence, we’ve turned an environmental liability into a multi-sector opportunity, creating a solution that supports clean energy use, water security, and agricultural productivity—all within a single, integrated platform.

Reference Project: Beijing Greenhouse Integration (Generator-Compatible)

Originally designed for boiler exhaust treatment, the Beijing project demonstrates full compatibility with diesel generators. The system reliably meets emission standards and significantly improves greenhouse productivity by utilizing CO₂-enriched air—proving the concept’s technical and economic feasibility.