i) An activated sludge treatment process is used to treat wastewater coming from a city where the total population is 100,000. Determine the total sludge (mass and volume) produced in a day from a primary and secondary sedimentation tank using the following data. Sludge mass production Primary sludge = 35 to 45 gSS/person.day Secondary sludge = 25 to 35 gSS/person.day Sludge volume production Primary sludge = 0.6 to 2.2 L/ person. day. Secondary sludge = 2.5 to 6.0 L/ person.day ii) If a wastewater has soluble PO4-P of 15 mg/L & wastewater flow rate is 0.10 m3/sec. Calculate the theoretical amount of lime, alum and ferric chloride required in a day to remove 100% of soluble PO4-P from wastewater.
i) An activated sludge treatment process is used to treat wastewater coming from a city where the total population is 100,000. Determine the total sludge (mass and volume) produced in a day from a primary and secondary sedimentation tank using the following data.
Sludge mass production
Primary sludge = 35 to 45 gSS/person.day
Secondary sludge = 25 to 35 gSS/person.day
Sludge volume production
Primary sludge = 0.6 to 2.2 L/ person. day.
Secondary sludge = 2.5 to 6.0 L/ person.day
ii) If a wastewater has soluble PO4-P of 15 mg/L & wastewater flow rate is 0.10 m3/sec. Calculate the theoretical amount of lime, alum and ferric chloride required in a day to remove 100% of soluble PO4-P from wastewater.
please i need it within an hour thanks
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