Is BOD a water quality parameter?

Biochemical oxygen demand / biological oxygen demand is an important water quality parameter because it provides an index to assess the effect discharged wastewater will have on the receiving environment.

What is BOD in water quality?

Biochemical oxygen demand (BOD) represents the amount of oxygen consumed by bacteria and other microorganisms while they decompose organic matter under aerobic (oxygen is present) conditions at a specified temperature.

Why river water quality is measured in BOD?

BOD is typically done aerobically, because it is usually used for lakes, river, streams – surface waters in contact with the atmosphere and so oxygen containing. It typically measures degradation by oxic bacteria and archaea.

What is BOD of river?

BOD (Biological Oxygen Demand or Biochemical Oxygen Demand) is the amount of dissolved oxygen, expressed in milligrams of oxygen per litre of water, consumed by micro-organisms to decompose the organic matter present in water. …

How are BOD and cod used in water quality assessment?

Monitoring of biochemical parameter is a routine water quality assessment for river quality where pollution is of concern due to rapid urbanization and industrialization that can post threat to sustainability of river conservation. Thus BOD and COD are two widely used parameters for organic pollution measurements.

What is the BOD and cod ratio of a river?

These corresponde to BOD:COD ratio of 0.063 to 0.667 with a mean value of 0.094 and 0.030 to 0.667 with a mean value of 0.117 respectively for Sampling #1 and Sampling #2. (a) BOD and COD Data For River 3 (Sampling #1) (b) BOD and COD Data For River 3 (Sampling #2) Fig. 3: BOD and COD Data for River #3

How are water quality parameters along rivers determined?

ABSTRACT: Water samples have been collected from a part of Surma River along different points and analyzed for various water quality parameters during dry and monsoon periods. Effects of industrial wastes, municipal sewage, and agricultural runoff on river water quality have been investigated. The study was conducted within the Chattak to

Which is a good indicator of river pollution?

The relationship of BOD and COD of river water for three rivers in Malaysia are investigated over a period of one year. Results of the investigation revealed that BOD: COD ratio is a good indicator for pollution measurement in river. It can be used as an indicator to predict the relationship of BOD and COD in the river.