Both bod and cod are commonly used to measure bod:cod ratio as an indicator for pollutants leaching from landfill aik heng lee and hamid nikraz relationship of lower chloride value at higher bod:cod ratio the correlation of ammonia to bod:cod of leachate is. Bod is a measure of, the amount of oxygen that require for the bacteria to degrade the organic components present in water / waste water. Bod/cod ratio is a measure of food value if the ratio is higher, it has higher food and less toxicity sewage, for example, may have bod/cod ratio of 05 before treatment. The bod/cod ratio is 0 373 knowing that the bod/cod wastewater ratio should be approximately 0 , the percent yield obtained is 75% so there are definitely different sources of errors that affected the ratio which will be mentioned and elaborated on in this discussion.
Bod :cod ratio of 0030 to 0667 with a mean value of 0163 and 0030 to 0188 with a mean value of 0135 respectively for sampling #1 and sampling #2 for river #3, bod of 2 mg/l to 6 mg/l with a mean value of 25 mg/l and 2 mg/l to 6 mg/l with a mean. What is the relationship between the cod and bod values in waste water the ratio of bod/cod is about cod is higher than that of bod maximum of up to 4 times in medium scale industries but. The bod/cod ratio is 0373 knowing that the bod/cod wastewater ratio should be approximately 05, the percent yield obtained is 75% so there are definitely different sources of errors that affected the ratio which will be mentioned and elaborated on in this discussion.
Home essays measuring the bod and cod measuring the bod and cod value, and calculation of the bod/cod ratio topics: water pollution, role of bod in cg essay between shareholders, board of directors and companies management in shaping company’s performance.
Calculation of chemical oxygen demand (cod) apparatus: round bottom flask, water condenser, burette, pipette,heating mantle. Measuring the bod and cod value, and calculation of the bod/cod ratio essay discussion before discussing the results of the bod and cod tests carried out, it is vital to know the different between both tests. Calculation of the effluent bscod below you can find the typical coefficients and data used to establish the basic design of a complete mix suspended growth biological sewage wastewater process to use this calculator please fill in the input value data of your sewer wastewater and as a result some basic plant design and effluent bod data will.
To use this calculator please fill in the input value data of your sewer wastewater and as a result some basic plant design and effluent bod data will follow out of the calculation if the normal sewer water characteristics are unknown, please press the typical data button for an autofill of the input fields. Does i understand correctly, that oxitop control system shows actual bod value in the time x and i need this value multiply with dilution factor of the sample only (for example if there is 100 ml.
The acidogenic phase is the early stage of waste degradation and is generally characterized by a ratio of bod concentration to cod concentration greater than or equal to 01 typical characteristics of the, the methanogenic phase of waste decomposition are bod/cod less than 01. Understanding dilution and seeding procedures in bod test new delhi, may 1999 csmrs building, 4th floor, olof palme marg, hauz khas, required for biochemical oxygen demand measurement modules in which prior training is • corrected bod value of the sample p.
I am using wtw oxitop control 12 system for bod measurement of industrial wastewater with high cod loading i don't really understand how to calculate bod from gained data which formula do i need. (b) bod:cod ratio of river 1 (sampling #2) fig 4: bod: cod ratio of river 1 there is a significant observable trend noted in all values of bod:cod values which are in the order of magnitude similar to values reported in the literature it is also noted that bod:cod ratio of less than 1 are observed most of time. Bod (biochemical oxygen demand) is a measure of, the amount of oxygen that is requires for the bacteria to degrade or cleave the organic species present in water or waste water cod is higher than that of bod the ratio is up to 4 in medium scale industries however, it varies based on the industrial process and nature of the raw materials used.