Primary treatment definition

Primary treatment means treatment of urban waste water by a physical and/or chemical process involving settlement of suspended solids, or other processes in which the BOD5 of the incoming waste water is reduced by at least 20% before discharge and the total suspended solids of the incoming waste water are reduced by at least 50%.
Primary treatment means a treatment process designed to remove organic and inorganic settleable solids from wastewater by the physical process of sedimentation.
Primary treatment means a wastewater treatment process that takes place in a tank and allows those substances in wastewater that readily settle or float to be separated from the water being treated.

Examples of Primary treatment in a sentence

  • Primary treatment shall be by Removing, Burying, Chipping, Piling, Machine Piling, or a combination of these means unless a method is specified or prohibited on Sale Area Map.

  • Primary treatment at the plant consists of the screening out of larger solids, floating material and other foreign objects and, at some facilities, grit removal.

  • Provide fresh air.In the case of lung irritation: Primary treatment using corticoide spray, eg.

  • Primary treatment shall be by Removing, Burying, Chipping, Piling, Machine Piling, or a combination of these means unless a method is specified or prohibited on Contract Area Map.

  • Primary treatment consisted of weekly doxorubicin (14 mg/m2) scheduled for 16 weeks (17) with 4-weekly assessment of clinical response according to the Union International Contre Cancer criteria (38).


More Definitions of Primary treatment

Primary treatment means treat- ment that removes material that floats or will settle, usually by screens or set- tling tanks.
Primary treatment means a treatment system, such as a septic tank, that provides retention time to settle the solids in raw wastewater and that retains scum within the system.
Primary treatment means a wastewater treatment process that allows those substances in wastewater that readily settle or float to be separated from the water being treated.
Primary treatment means treatment of urban wastewater by a physical and/or chemical process involving settlement of suspended solids, or other processes in which the BOD5 of the incoming wastewater is reduced by at least 20 percent before discharge and the total suspended solids of the incoming wastewater are reduced by at least 50 percent;
Primary treatment means a liquid waste treatment process that takes place in a treatment unit and allows those substances in wastewater that readily settle or float to be separated from the water being treated;
Primary treatment means the removal, usually by sedimentation, of a substantial amount of suspended matter but little or no removal of colloidal or dissolved matter;
Primary treatment means treatment of wastewater by a physical process, which may involve maceration, sedimentation, screening and grit removal;