BOD and COD are wastewater quality parameters listed in the regulation for sewage  discharge standard under the Environmental Quality Act 1974. The regulation stated  that the permissible COD is 120 mg/L for Standard A and 200 mg/L for Standard B.  Explain the meaning of this statement.

Q: Assuming an organic loading on waste stabilization pond equal to 250 kg BOD/ha and detention time…

A: Biological oxygen demand is the amount of oxygen required by the micro organisms to oxidize organic…

Q: ou are the Environmental officer for the new Dangote Cement Plant in Kitwe with a permit to…

A: To determine the concentration experienced at the fish hatchery and evaluate the exposure threat in…

Q: X 1. One million gallons per day of municipal wastewater with a BOD5 of 260 mg/L and suspended…

A:

Q: What is the calculated wastewater flow in CFS through a Parshall flume with a throat width of 10.0…

A: Given data:- The given throat width is 10 feet. The given maximum flow head is 4.5 feet. Use…

Q: 1. 2. 3. What is the chlorine demand of a wastewater volume of 1200 m³/day treated with 20 kg/day.…

A: Given, Chlorine demand for various flowrates

Q: 15 mL of raw wastewater wasadded into a 300-mL BOD bottle, which was then filled up with 285 mL pure…

A:

Q: Biological wastewater treatment is the exclusive territory of microorganisms, higher organisms such…

A: ANSWER " TRUE"

Q: What is the difference between DO and BOD? Clearly explain why these 2 parameters are used in water…

A: Dissolved Oxygen (DO): It is the amount of oxygen which is dissolved in water. The solubility of…

Q: Please solve all the choices

A: 4.2 Step 1:To convert feet to square  multiply by 0.0929m sqr/ft sqr 4.3 Convert ppm to mol/mol…

Landfills

The landfill is a site used for the disposal of waste materials. The landfill is a solid waste facility that is often known as a dumping ground. The image below shows a landfill site in Hawaii. Landfilling is the most ancient and common method used for the disposal of waste. For the landfill, a deep trench is constructed in an isolated place away from the city. The trench for landfills is designed properly after analyzing the total population and the waste generation per capita. The waste is dumped into the trench and after every layer of waste, a layer of soil is spread on the top of it.