Dear Ye Zhao There are Two ...

Dear Ye Zhao

There are Two Things Ammonia recovers & ammonia removing

Ammonia recovers are most useful economical because the ammonia product is very useful  and costly and eco-friendly.

1. Ammonia recovered from ammonical waste

1. By Distillation Tower

The ammonia can be recovered with distillation tower the tower height depends upon quantity of waste and percentage of ammonia.(as shown in the fig)

1. Successful Ammonia Removal from Wastewater Using Liqui-Cel Membrane.
2. The membrane bioreactor (MBR) treatment process consists of three main components: 1) anoxic basins, 2) pre-aeration basins, and 3) the MBR basins. Raw wastewater must be screened through a fine screen prior to the anoxic basin. From the anoxic basin, mixed liquor flows into the pre-aeration basins and then into the MBR basins. The membranes are located in the MBR basins where wastewater is passed through the membranes and permeate pumps deliver the effluent to the disinfection process prior to discharge. The membranes remove the need for secondary clarification required in other treatment processes.
3. The solution is ECP (Electrolytic Catalytic Precipitation). From 1000 ppm to 0 ppm in few hours, without chemicals, without dilution, only with electric power. ECP is a process assigned to Aquatic Technologies.. Primary claims all refer to addition of catalytic enzymes, but the results cited do not show much improvement over straight anodic oxidations

1. Ammonia Removing

1. Remove ammonia from the wastewater via biological nitrification.
2. Different from biological treatment, this process physically converts ammonia in wastewater to nitrogen and steam using the stripper and the catalytic converter
3.  Anaerobically digest the excess biomass from biological nitrification to release ammonia into the water in the digester. Microorganisms can be used to convert ammonia to nitrate. A facility for doing this would likely be inexpensive to run, but would take up a lot of space
4. When excess digested biomass is dewatered, retain the filtrate from the dewatering process.  It should contain > 1000 mg/L of ammonia.
5.  You could take anaerobic with USAB follow Fixed Media as the reactor and put it or inoculated with nitrifying anaerobic to decompose ammonia to Hydrogen and Nitrogen gases.
6. At elevated   pH with Line and NaOH in 9.5-10.5 the Ammonia will escapes from body water through the air or steam stripper or the reactor in scrubbed with sulphuric acid to produce Ammonium Sulphate as fertilizer.
7. Ammonium Removal from Concentrated Waste Streams with the Anaerobic Ammonium Oxidation (Anammox) Process in Different Reactor Configurations .
8. The easiest way is to boil the solution until the ammonia has all gone up the exhaust stack. But some would certainly question the environmental wholesomeness of moving the problem from one media to another :-)
9. Ammonia or Ammonium ion, in aqueous solution can be removed by passing effluent through cation exchange resin. Resin can be regenerated with acid to get ammonium salt..
10. The zeolite pellets instead of the sand. Zeolite absorbs about 1000 times its own weight in ammonia.

Regards,

Prem Baboo