What are waste water parameters?

Biochemical oxygen demand (BOD), chemical oxygen demand (COD), total dissolved solids (TDS) and total suspended solids (TSS) are the most commonly regulated wastewater effluent parameters.

What are effluent standards?

Effluent standards are concentrations of pollutants expressed in terms of parts per million for waste water discharged through outfall pipes from publicly owned sewage treatment plants or industrial plants.

What is effluent water quality?

Effluent is sewage that has been treated in a septic tank or sewage treatment plant. It is also referred to as “trade effluent” or “wastewater.” Effluent is waste other than waste from kitchens or toilets, surface water or domestic sewage. It can be produced and discharged by any industrial or commercial premises.

What are the 4 stages required in the treatment of wastewater?

Treatment Steps

  • Step 1: Screening and Pumping.
  • Step 2: Grit Removal.
  • Step 3: Primary Settling.
  • Step 4: Aeration / Activated Sludge.
  • Step 5: Secondary Settling.
  • Step 6: Filtration.
  • Step 7: Disinfection.
  • Step 8: Oxygen Uptake.

What are the parameters in wastewater treatment?

The most frequently used parameters are: Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Organic Carbon (TOC), Alkalinity, Chlorides, Nitrogen, Oil and Grease, Dissolved Oxygen, pH, Phosphorus, Gases, Sulphur, Solids, Temperature, Metals as well as Micro-organisms.

What are the parameters to be Analysed for the waste water treatment?

Analysis of Important Wastewater Parameter:

  • The Chemical and Biological Oxygen Demand (COD, BOD)
  • Absorbable Organic Halogens (AOX)
  • Polycyclic Aromatic Hydrocarbons (PAHs)
  • Aromatic Hydrocarbons (Benzene, Toluene, Ethyl Benzene and Xylene (BTEX)

What is a good BOD level?

A BOD level of 1-2 ppm is considered very good. There will not be much organic waste present in the water supply. A water supply with a BOD level of 3-5 ppm is considered moderately clean.

How do you treat effluent water?

Several conventional treatment technologies, i.e. adsorption, chemical coagulation, activated sludge management, membrane filtration, etc., have been implemented to eliminate the pollutants from effluent waters. In addition, it is straightforward, with good effectiveness and ability for degrading contaminants.

What is the difference between influent and effluent water?

Influent is water that “flows in”. This is the raw, untreated wastewater. Effluent means to “flow out”. This is the treated wastewater.

What are the 3 stages of water treatment?

Community Water Treatment

  • Coagulation and Flocculation. Coagulation and flocculation are often the first steps in water treatment.
  • Sedimentation. During sedimentation, floc settles to the bottom of the water supply, due to its weight.
  • Filtration.
  • Disinfection.

What are wastewater characteristics and effluent quality parameters?

Wastewater characteristics and effluent quality parameters In many arid and semi-arid countries water is becoming an increasingly scarce resource and planners are forced to consider any sources of water which might be used economically and effectively to promote further development.

How are waste effluent treatment units designed and constructed?

Based on a successful experimental result from laboratory and bench scale for treatment of wastewater from beverages industry, an industrial and efficient treatment unit is designed and constructed. The broad goal of this study was to design and construct effluent, cost effective and high quality treatment unit.

What are the aspects of a wastewater treatment plant?


What are the nutrient concentrations in sewage effluent?

With typical concentrations of nutrients in treated wastewater effluent from conventional sewage treatment processes as follows: Nitrogen (N) – 50 mg/l Phosphorus (P) – 10 mg/l Potassium (K) – 30 mg/l