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Recent questions tagged biological-oxygen-demand
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GATE2020 CE-2-16
The relationship between oxygen consumption and equivalent biodegradable organic removal (i.e.,BOD) in a closed container with respect to time is shown in the figure Assume that the rate of oxygen consumption is directly proportional to the amount of degradable organic matter and is expressed as ... is $BOD_5 = L_5$ $BOD_t = L_0-L_t$ $L_0 = L_te^{-kt}$ $L_t = L_0(1-e^{-kt})$
The relationship between oxygen consumption and equivalent biodegradable organic removal (i.e.,BOD) in a closed container with respect to time is shown in the figureAssum...
go_editor
5.3k
points
go_editor
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Feb 13, 2020
Water and Waste Water Quality and Treatment
gate2020-ce-2
environmental-engineering
effluent-discharge-standards
biological-oxygen-demand
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0
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0
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2
GATE2017 CE-2-51
For a given water sample, the ratio between BOD$_{\text{5-day, 20}^{\circ} C}$ and the ultimate BOD is $0.68$. The value of the reaction rate constant $k$ (on base $e$) (in day$^{-1}$, up to two decimal places) is ________
For a given water sample, the ratio between BOD$_{\text{5-day, 20}^{\circ} C}$ and the ultimate BOD is $0.68$. The value of the reaction rate constant $k$ (on base $e$) (...
gatecse
4.0k
points
gatecse
asked
Aug 7, 2019
Water and Waste Water Quality and Treatment
gate2017-ce-2
numerical-answers
water-and-waste-water-quality-and-treatment
environmental-engineering
biological-oxygen-demand
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–
0
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0
answers
3
GATE2017 CE-1: 54
Two wastewater streams A and B, having an identical ultimate BOD are getting mixed to form the stream C. The temperature of the stream A is $20^{\circ}C$ and the temperature of the stream C is $10^{\circ}C$. It is given that the $5$-day BOD of the stream A measured ... The $5-$day BOD (in mg\I, up to one decimal place ) of the stream C, calculated at $10^{\circ} C$, is _________
Two wastewater streams A and B, having an identical ultimate BOD are getting mixed to form the stream C. The temperature of the stream A is $20^{\circ}C$ and the temperat...
Milicevic3306
11.9k
points
Milicevic3306
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Mar 26, 2018
Water and Waste Water Quality and Treatment
gate2017-ce-1
numerical-answers
water-and-waste-water-quality-and-treatment
environmental-engineering
biological-oxygen-demand
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–
0
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0
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4
GATE Civil 2013 | Question: 43
A student began experiment for determination of $5$-day, $20^{\circ}C$ BOD on Monday. Since the $5$th day fell on Saturday, the final DO readings were taken on next Monday. On calculation, BOD (i.e. $7$ day, $20^{\circ}C$ was found to be $150$ ... )? Assume value of BOD rate constant $(k)$ at standard temperature of $20^{\circ}C$ as $0.23/day$ (base $e$). ___________
A student began experiment for determination of $5$-day, $20^{\circ}C$ BOD on Monday. Since the $5$th day fell on Saturday, the final DO readings were taken on next Monda...
Milicevic3306
11.9k
points
Milicevic3306
asked
Mar 25, 2018
Water and Waste Water Quality and Treatment
gate2013-ce
numerical-answers
environmental-engineering
water-and-waste-water-quality-and-treatment
biological-oxygen-demand
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