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Principle and Application Fields of Ammonia-Nitrogen Treatment Towers

Release time:

2025-03-12 10:06

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　　An ammonia-nitrogen treatment tower is a specialized piece of equipment designed to treat wastewater containing ammonia nitrogen. Through specific processes and technologies, it effectively removes ammonia-nitrogen components from the wastewater, enabling the treated water to meet discharge standards or reuse requirements.

　　I. Working Principle

　　The working principle of the ammonia-nitrogen treatment tower is primarily based on the stripping method and the chemical absorption method. The stripping method involves adjusting the pH of the wastewater to increase the proportion of free ammonia, then using aeration to cause ammonia to escape from the water, thereby removing ammonia nitrogen. The chemical absorption method, on the other hand, utilizes an absorbent solution in the absorption tower to chemically react with the escaped ammonia gas, converting it into harmless substances and thus achieving the purpose of gas purification.

　　II. Structural Features

　　Ammonia-nitrogen treatment towers typically consist of a tower body, a packing layer, an inlet and outlet water system, a gas distribution system, a control system, and other auxiliary equipment.

　　Tower Body: The tower body is the main component of the ammonia-nitrogen treatment tower and is typically made from high-strength, corrosion-resistant materials such as fiberglass-reinforced plastic.

　　Packing Layer: The packing layer is located inside the tower and serves to increase the gas-liquid contact area, thereby enhancing treatment efficiency. Commonly used packings include Raschig rings and multi-faceted hollow spheres.

　　Inlet and outlet system: The inlet and outlet system is responsible for introducing wastewater into the tower and discharging the treated wastewater. The inlet is typically located at the upper part of the tower body, while the outlet is situated at the bottom or side of the tower body.

　　Gas distribution system: The gas distribution system comprises a fan and a gas distribution device, which are used to evenly distribute air throughout the tower, ensuring thorough contact with the wastewater.

　　Control System: The control system is used to adjust parameters such as the pH value of wastewater, control liquid levels, and regulate flow rates, thereby ensuring stable operation and efficient treatment of the equipment.

　　III. Application Fields

　　Ammonia-nitrogen treatment towers are widely used in the treatment of various types of ammonia-nitrogen-containing wastewater, including chemical plant wastewater, fertilizer production wastewater, landfill leachate, coal chemical wastewater, petrochemical wastewater, metallurgical and oil-refining wastewater, and domestic sewage.

　　IV. Advantages

　　High-efficiency removal of ammonia nitrogen: The ammonia-nitrogen treatment tower, which combines stripping and chemical absorption, can efficiently remove ammonia-nitrogen from wastewater.

　　Strong corrosion resistance: The tower body is made of high-strength, corrosion-resistant materials, extending the service life of the equipment.

　　Small footprint: The tower structure is compactly designed, occupying a small footprint and facilitating easy installation and maintenance.

　　Automated Control: The equipment is equipped with an automated control system, making management and maintenance easier and reducing operating costs.

　　Environmentally friendly and pollution-free: The treated wastewater meets discharge standards, and all exhaust gases generated by the system are routed into an ammonia absorption system for treatment, achieving zero-pollution emissions.

　　In summary, the ammonia-nitrogen treatment tower is a highly efficient and environmentally friendly wastewater treatment device with broad application prospects and significant development potential.


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