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Ammonia stripping tower
First. Product Overview and product images
I developed the ammonia treatment system by ammonia stripping and absorption column purification and many other technologies are combined, treated with different concentrations of ammonia wastewater can be 10000mg / L or more ammonia wastewater treatment to emission requirements. Ammonia concentration after treatment at 15mg / L or less, meet the national emission standards. I am in the ammonia stripping column and then set up the absorber, so that the air is discharged to the atmosphere after the gas purification and pollution-free.
Applications: pharmaceutical, pesticide and chemical waste; landfill leachate; fertilizer production wastewater; coking industry wastewater; rare earth refining wastewater; sewage and the like.
Second, the principle
Ammonia in the wastewater mainly ammonium ion (NH4 +) and free ammonia (NH3) state exists, the balance is as follows: NH3 + H2O-NH4 + + OH- This relationship is influenced by pH that, when the pH value is high, balance moves to the left, increasing the proportion of free ammonia. Normal temperature, pH value of about 7 when the majority of ammonia to ammonium ion state exists, and when the pH is about 11, approximately 98% of free ammonia, free ammonia is easy to escape from the water, such as to be aerated, then it can promote ammonia from the water to escape.
Stripping tower constructed using a gas-liquid contacting device in the interior of the tower filled with a filler to increase the contact area. Adjusting the pH value of the water from the upper portion of the tower showered onto the filler material to form droplets, falling down the gap filler order, and by the fan blowing air up from the bottom of countercurrent contact and mass transfer process is completed, the ammonia from the liquid phase into the gas phase, with air emissions, complete the stripping process, the removal rate of more than 75%. Low concentration waste water is usually at room temperature with air blown off, while high concentrations of wastewater is often carried out in a heated state stripping. Ammonia stripping of ammonia absorbed into the post and then purification tower, the tower at some ammonia gas and absorbing liquid chemical reaction, the gas can discharge.
Third, ammonia stripping tower system selection and parameter
Because each user needs to deal with the concentration of ammonia in the water, temperature, and treated water is different, in the selection of a user must first contact me, we will help you choose affordable, value for money device.
The system can be equipped with a gas line analyzer, PH meter control, differential pressure transmitters, pressure sensors, flow sensors, level control gauge, suspended solids concentration meter, solenoid valve, inverter and control cabinet and other components of the control system, control of the above are digitally displayed on the display screen, so that managers at a glance, and a fault alarm, easy to manage and maintain. Automatic control system for manual, semi-automatic and fully automatic control design based on user requirements.
Fourth, the system features and processes
(1): Through a combination of technology, capable of handling different concentrations of wastewater, high ammonia removal, post-processing to meet emission standards at the national level ≤15 mg / L or less.
(2): low energy consumption, low cost, processing cost per ton of waste water at 5-10 yuan, far below the cost of conventional treatment processes 15-25 yuan / ton.
(3): All the exhaust system to produce ammonia absorption into the system, so that the whole process more environmentally friendly.
(4): interior equipment design is more reasonable to solve the congestion problems after blowing off the cold climate and the long term efficiency of operation of the filler.
(5): equipment glass steel or carbon steel material corrosion-resistant materials for processing, to solve the traditional use of sewage equipment corrosion caused by short-lived problem.