Traitement secondaire

Treatment of wastewater to a non-Potable level so that it may be returned to the stream. (See also Tertiary Treatment, Non-Potable.)

The removal or reduction of contaminants and BOD of effluent from primary wastewater treatment.

The removal or reduction of contaminants and BOD of effluent from primary wastewater treatment.

Wastewater treatment systems that use microorganisms to convert the dissolved organic waste in the effluent into a more harmless form. Although primarily designed to remove BOD, secondary treatment al [..]

treatment of boiler feed water or internal treatment of boiler-water after primary treatment.

Second step in most waste treatment systems, during which bacteria consume the organic portions of the wastes. This is accomplished by bringing the sewage, bacteria, and oxygen together in trickling f [..]

The second step in most publicly owned waste treatment systems in which bacteria consume the organic parts of the waste. It is accomplished by bringing together waste, bacteria, and oxygen in tricklin [..]

The process used to reduce the amount of dissolved organic matter and further reduce the amount of suspended solids and coliform in wastewater.

The second step in most publicly owned waste treatment systems in which bacteria consume the organic parts of the waste. It is accomplished by bringing together waste, bacteria, and oxygen in tricklin [..]

The second step in most publicly owned waste treatment systems in which bacteria consume the organic parts of the waste. It is accomplished by bringing together waste, bacteria, and oxygen in trick [..]

A wastewater treatment process used to convert dissolved or suspended materials into a form more readily separated from the water being treated.

Usually a biological process where bacteria oxidize or breakdown organic matter that is missed by primary treatment. At Woodside, the bacteria take care of all the organic material (no primary). Also [..]

A wastewater treatment process used to convert dissolved or suspended materials into a form more readily separated from the water being treated. Usually, the process follows primary treatment using se [..]

Wastewater treatment step following primary treatment to remove biodegradable dissolved and colloidal organic matter by using biological processes, such as activated sludge, trickling filters, or various kinds of ponds and lagoon systems.

Generally, a level of treatment that removes 85 per cent of BOD and suspended solids, generally by biological or chemical treatment processes. Secondary effluent generally has BOD < 30 mg/L, SS < [..]

second step in most waste treatment systems, in which bacteria break down the organic parts of sewage wastes; usually accomplished by bringing the sewage and bacteria together in trickling filters or [..]

A wastewater treatment method that usually involves adding biological treatment to the settling, skimming, and disinfection provided by primary treatment.

the wastewater process where bacteria are used to digest organic matter in the wastewater.

A process to remove the amount of dissolved organic matter in waste water and to reduce further the suspended solids.

Treatment of boiler feedwater or internal treatment of boiler water after primary treatment.