Waste Water Question 3: The following observations were made on 2% dilution of wastewater: Dissolved oxygen of aerated water used for dilution = 0 mg/l Dissolved oxygen of diluted sample after 5 days = 0.6 mg/l Dissolved oxygen of original sample = 2.0 mg/l The BOD of 5 days of the sample is:

Q: To determine the BOD5 of a waste water sample, 5, 10 and 50 ml aliquots of the waste water were…

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Q: Solids analyses were conducted on the domestic wastewater that was tested for BOD. The tests were…

A: Total solid Total solids in water are made up of dissolved solids as well as suspended and…

Q: A BOD test is conducted using standard size BOD bottles. The technician prepares  two BOD bottles on…

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Q: The following data was obtained to perform a BOD test to determine how well a wastewater treatment…

A: BOD  is the amount of oxygen required for the  bio degradation of materials  present in the waste…

Q: Example. Following observations were made on 4% dilution of waste water: no. of aerated water used…

A: Given data: Dilution percent=4% DO of aerated water=4 mg/l DO of diluted sample after 5 days…

Q: The following data pertains to a sewage sample at a point source. Initial dissolved oxygen (DO) = 12…

A: Given- Initial DO=12 mg/L, Final DO=4 mg/L, 2% dilution factor=100/2, It is needed to find the BOD…

Q: The following data pertains to a sewage sample at a point source. Initial dissolved oxygen (DO) = 12…

A: Given data- Initial DO=12 mg/LFinal DO=4 mg/Ldilution=2%To Find-BOD of the sample

Q: A BOD analysis was conducted on a partially-treated sewage at 25°C. Only 20% of the volume of BOD…

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Q: The 2-day and 4-day BOD values of a sewage sample are 100 mg/L and 155 mg/L, respectively. The value…

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Biological Processes

Biological solid waste includes bacterial and contaminated waste produced by living individuals. Its treatment is essential to prevent the spread of any air-borne or water-borne diseases or diseases transmitted from one organism to another in a food chain. There are many benefits of the biological solid waste treatment and some of them are: the minimized quantity of waste substance, waste control, eradicating any disease-causing pathogens, generation of biogas, composting, anaerobic digestion, bio drying, mechanical biological treatment, microbial fuel cell, phytoremediation, and biofiltration. The final products of the biological solid waste treatment may be recycled to obtain organic fertilizers or disposed of in SWDS (Solid Waste Disposal Site) after proper treatment.