WorldCat Identities

Rand Development Corporation (Cleveland, Ohio)

Works: 2 works in 2 publications in 1 language and 4 library holdings
Publication Timeline
Most widely held works by Ohio) Rand Development Corporation (Cleveland
Rapid-flow filter for sewer overflows : the evaluation of coarse coal as a filter medium to remove large solids from sewer overflows( Book )

1 edition published in 1969 in English and held by 4 WorldCat member libraries worldwide

Phosphorus removal by ferrous iron and lime by Cleveland, Ohio Rand Development Corporation( Book )

1 edition published in 1971 in English and held by 0 WorldCat member libraries worldwide

Spent pickle liquor, as a source of ferric ion, was added to primary treatment facilities and found to be effective in removing more than 60% of the phosphorus contained in the sewage. When advanced means for more complete removal of the insolubilized phosphates are available, removals in excess of 90% are indicated. In addition, overall suspended solids removals averaged 61.5% and BOD and COD removals averaged 61.6 and 55.3 percent during a 23 month test period. Required iron dosage ranged from the theoretical minimum of 2.7 to a maximum of approximately 3.1 weights of ferrous iron per weight of phosphorus. The weight increase in sludge solids due to chemical precipitation of phosphorus was 100 lbs/million gallons/mg/liter of phosphorus in the influent. Total costs for treating a raw sewage containing 13 mg/l phosphorus are given
Audience Level
Audience Level
  Kids General Special  
Audience level: 0.81 (from 0.56 for Phosphorus ... to 0.81 for Rapid-flow ...)