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WASTEWATER TREATMENT IN COAL CONVERSION
Citation:
Hicks, R., D. Goldstein, F. Seufert, AND I. Wei. WASTEWATER TREATMENT IN COAL CONVERSION. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-79/133.
Description:
The report describes water treatment control technology specific to fuel conversion plant sites in the western U.S. Most plants converting coal to other fuels use a large quantity of clean water (as stream) and put out a large quantity of dirty water that is condensed when the products from the coal reactor are cooled. Treatment of this foul condensate is the subject of this report. The report discusses each aspect of water treatment separately. Procedures for removing phenolic compounds are discussed: they include distillation, extraction, and adsorption. The report includes design equations, step-by-step design procedures, and calculations for a typical unit. It also provides physical data that are required for design. The discussion of ammonia separation and recovery includes design equations and physical data. Illustrative calculations show how the design procedure is used. For biological treatment, the design procedures show how to destroy organic contamination (including phenol) in the condensate. It also discusses cooling tower control. An economical use of the foul condensate is treating it for makeup to a plant's cooling system. The report also reviews established procedures for sizing plant equipment.