The norweco tnt is an innovative alternative treatment unit atu specifically designed for residential total nitrogen wastewater treatment.
Nitrogen septic system.
Conventional passive systems no modifications for nitrogen reduction.
There are approximately 420 000 septic systems in maryland.
A conventional septic system does not remove much nitrogen instead delivering about 23 2 pounds of nitrogen per year to the groundwater.
The norweco tnt total nitrogen treatment system works to reduce the weight of solids in wastewater by up to 98 by reducing its bod.
Management action plans bmaps.
Under these plans new septic systems on lots of less than one acre and located in some sensitive springs areas priority focus areas or pfas are required to be nitrogen reducing.
How the norweco tnt nitrogen reduction septic system works.
The system uses a tank to separate solids from liquid and breakdown bacteria.
For alternative septic systems a maintenance contract is highly recommended.
For two small houses sharing should not be a problem especially if you own both of the houses.
4 the town or municipality must approve your plan.
An additional treatment unit is installed using aeration and recirculation to promote the biological processes that release the harmless nitrogen gas into the air.
Septic systems also known as on site sewage systems oss are designed to reduce pollution by treating the solids pathogens organics and ammonium a form of nitrogen in human waste before it is discharged to the soil.
In raw wastewater i e wastewater that has not yet entered a septic tank approximately 73 of n is present as organic n and 24 exists as ammonium n table 2.
3 the well and septic system must be maintained properly for long term performance.
Alternative systems use pumps or gravity to help septic tank effluent trickle through sand organic matter e g peat and sawdust constructed wetlands or other media to remove or neutralize pollutants like disease causing pathogens nitrogen phosphorus and other contaminants.
By design bacteria consume ammonium and convert it to nitrate either in the drainfield or through aeration.
2007 due to anaerobic lack of oxygen conditions in the conventional septic tank raw wastewater is partially treated in the septic tank.
Nitrogen in the septic tank of a septic system.
A conventional septic system allows gravity not electricity to transport waste from its source to the septic system.
New conventional systems are no longer permitted in these areas except when a sewer will be available within five years.