A spray tower can serve as a primary unit within an exhaust gas treatment system and may be integrated with other equipment—such as activated carbon adsorption units, UV-photocatalytic oxidation systems, or regenerative thermal oxidizers (RTO)—depending on specific project requirements. Since each type of equipment operates under different conditions and employs distinct treatment mechanisms, the configuration must be determined by analyzing factors such as the composition, concentration, temperature, and flow rate of the exhaust gas, as well as downstream treatment requirements; the effectiveness of a system cannot be judged solely by the names of the individual components. In scenarios involving acidic or alkaline gases, water-soluble pollutants, or particulate matter, a spray-based treatment stage should be evaluated first, followed by the selection of subsequent equipment tailored to the target pollutants and emission standards. The overall process design and the performance specifications for each piece of equipment should be based on an assessment of actual operating conditions and the specific project design.