This purification tower adapts to many equipments which are used for disposaling of unhealthy waste gas. It's not only widely used, but also high efficiency of purification( more than 95%). Its equipment resistance is low (400-600pa), cost of operation is low. Application: Acid gas: sulfuric acid, HLC, nitric acid, HF etc. Alkali gas: NAOH, KOH, NHS etc. Organic gas: benzenes, alcohols, phenols. We used different absorption solvent for dealing with different harmful gas. Construction and working theory: 1.Purification tower consists of tower body, solvent tank, praying system, packing, separator of gas and solvent. 2.According to different mediums, purification tower could made of PVC, PP, FRP, carbon steel or stainless steel. 3.Off-gas is input to the tower body from the bottom inlet, then passed through the filling layer and spray mist system. 4.Off-gas is fluid purified, purified gas pass through the gas-solvent separator, is output to atmosphere. 5.Mist spray system takes American HHSJ spray-head, with good nebulization, obvious purification effect. Attention: 1. This purification tower should be installed on anti corrosion basis which is higher 100mm than ground. Pump with acid resistance should be on another anti corrosion basis. 2. This equipment should be installed indoor, in order to prevent cold weather from effecting on equipment and absorption solvent. 3. If there is no PH controlling system, PH of acid or alkali solvent should be checked regularly, and consistency should be adjusted at any time. 4. Spray-head and filling material should be checked regularly, in order to avoid plugging, any problems should be solved immediately. skype:[email protected]