The size of a horizontal branch waste pipe for one lavatory, one residential sink and one slop sink.
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The size of a
horizontal branch waste pipe for one lavatory, one residential sink and one
slop sink.
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- If the discharge rate of a waste drain line is 601 GPM, what is the smallest pipe size that can be used if the slope of the drain line cannot be greater than 1/4 inch of fall per foot? Refer to table belowQ#4: Draw a neat sketch (hand sketch) of a sewage pumping station and label its parts. Also explain with reference to your locality that under what circumstances, pumping station will be required in your locality?A landfill initially received 10,000 tons/day of waste. This receipt rate increases 10% per year. The landfill is closed at the end of the fourth year. Calculate the yearly gas production for 20 years after opening. What is the peak gas production in m3/yr.
- Calculate the required capacity of the pipe distribution systemA wastewater treatment plant receives 250 mg/L BOD, 45 mg/L NO3-N, and 0.08% TSS. What is the loading of each component (lb/d) if the plant flow is 730,000 gpd?Municipal solid waste is generated within a community from several sources, not just the household. List and discuss these sources? Define the term; Resource recovery
- The effluent license, pollution license, noise permit, waste license are currently implemented by the National Environment Secretariat (NES) 1. True 2. FalseDiscuss at least 4 consequences of inappropriate disposal of MSW? Define the term; RecyclingA landfill initially received 10,000 ton /day of waste.this receipt rate increases 10% per year.The landfill is closed at the end of the fourth year.Calculate the yearly gas production for 20 years after opening.What is the peak gas production in m3/year
- A community normally levies a sewer charge of 20 cents/m3 ($0.20/m3). For discharges in which the BOD > 250 mg/L and suspended solids (SS) > 300 mg/L, an additional $0.50/kg BOD and $1.00/kg SS are levied. A chicken processing plant uses 2000 m3 water per day and discharges wastewater with BOD = 480 mg/L and SS = 1530 mg/L. What is the plant’s daily wastewater disposal bill?A filter plant has 3 filters, each measuring 10 x 7 ft. One filter is out of service, and the other filters together are capable of filtering 280 gal/min. How many gallons per square foot per minute for each filter?A bankrupt chemical firm has been taken over by new management. On the property, they found a 20,000 m3 brine (i.e., salt) pond containing 25,000 mg/L of salt. The new owners propose to flush the pond into their discharge pipe leading to the Pacific Ocean, which has a salt concentration of about 35,000 mg/L (or 3.5% salt). You have been hired by the company to calculate the flow rate (in m3/s) of freshwater (0 mg/L salt) that must they use to reduce the salt concentration in the pond to 500 mg/L within 3 months (90 days). To increase your billable hours, then calculate the total volume of water that was used (in m3) and the mass of salt (in kg) that was exported to the Pacific Ocean. You may assume the pond volume remains the same during the flushing process, the pond is completely mixed, and the salt is a conservative substance.