What are the different types of on-site wastewater treatment systems?
Most on- site wastewater treatment systems are of the conventional type, consisting of a septic tank and a subsurface wastewater infiltration system (drain field); however, some soil types such as clay are inadequate for the proper absorption and treatment of wastewater.
What is an aerobic wastewater treatment system?
An aerobic system is usually attached to a sprinkler system to dispose of the treated wastewater. THE PERMITTING AND LICENSING PROCESS The permitting and licensing process has several steps: • A site evaluation must be performed to determine if the property is suitable for a conventional system or if an aerobic system will be required.
How much does an on-site sewage treatment system cost?
On-site Treatment System-Single Family Residence* $420.00 Commercial On-site Treatment System-Light $560.00 Commercial On-site Treatment System-Heavy $730.00 Sewer System License Transfer Fee $25.00 Re-Design Fee $150.00 Re-Inspection and Extra Trip Fees $150.00 NO REFUNDS AFTER 5 DAY GRACE PERIOD.
What is packaged wastewater treatment?
Package plants are pre-manufactured treatment facilities used to treat wastewater in small communities or on individual properties.
What is primary treatment in ETP?
In Primary treatment, wastewater is fed to a screen to remove all large objects that are suspended in the water. After this, the water gets into a Grit chamber where the grit is removed. Grit includes sand, gravel, eggshells, bone chips, seeds and other materials.
What is BOD and COD?
Biochemical oxygen demand (BOD) is the amount of oxygen required by the microorganisms to break down the organic materials, whereas chemical oxygen demand (COD) is the amount of oxygen required to break down the organic material via oxidation.
What is called sludge?
The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or slurry residual material that is produced as a by-product of wastewater treatment processes. This residue is commonly classified as primary and secondary sludge.
What is the process of reducing effluent?
treatment system, draining into a ditch, servitude, natural drainage, or body of water. EVAPOTRANSPIRATION – a process of reducing effluent, aided with adequate vegetation coverage on the property, allowing plants to absorb and process the effluent through transpiration, while some of the effluent evaporates just as water does.
Is sewage disposal ever increasing?
Most people give little thought to the process of sewage disposal, however, with the ever-increasing population growth and development, especially in unincorporated areas that have no community-type sewage services, the need and use of individual treatment systems is also ever-increasing.
Do you need to disinfect water before discharge?
If the effluent from your system must be discharged directly to a body of water, it is highly recommended that it be disinfected prior to discharge. Please note that a specific type of chlorine must be used to disinfect the effluent from your systemif you choose chlorination as a method of disinfection (see FORM-C).
Do parishes allow off lot discharges?
It is equally important to be familiar with your local parish rules and regulations regarding individual sewage treatment systems. Some parishes do not allow any off lot discharges which may restrict you, based on lot size, soil characteristics, and ground water depth, to the use of a particular type of system. 2 . III.
Do you need to service ATU?
Routine maintenance is a must with any type of treatment system; however, an ATU must be serviced more often than other conventional type systems. If you must use an ATU, it is highly recommended that you read the homeowner manual your licensed installer will supply at the time of installation.
Do you need electricity for an ATU?
The alarm system for the ATU also requires electricity (Please do not have your ATU installed until you have the electrical components in place). Your permit cannot be finalized if the air pump and alarm systems for your ATU are not working. A type of effluent reduction is also required with an ATU (.
