Sludge Engineering: The Treatment and Disposal of Wastewater SludgesIntended for advanced students and practitioners of wastewater engineering, this text explains the theory and quantitative rationale for treating wastewater and industrial sludges, with public safety and efficiency in mind. It offers important information on various practices for safe and legal sludge disposal. |
Contents
1 | 25 |
SLUDGE STABILIZATION | 63 |
SLUDGE PUMPING AND CONVEYING | 115 |
SLUDGE THICKENING | 131 |
SLUDGE DEWATERING | 177 |
SLUDGE CONDITIONING | 251 |
SLUDGE DRYING AND COMBUSTION | 275 |
CHEMICAL SLUDGES | 303 |
LAND DISPOSAL OF SLUDGE | 319 |
OTHER OPTIONS FOR SLUDGE DISPOSAL | 349 |
REGULATIONS GOVERNING SLUDGE | 365 |
Appendix | 385 |
Common terms and phrases
activated sludge aeration aerobic alum sludge anaerobic digestion belt filter biological sludges biosolids bowl cake solids calculated centrifuge chemical combustion composting conditioners conditioning conveyor cylinder density dewaterability digested sludge dose effect effluent Environmental equation example fecal coliform floc flocculation flow fluid freezing gravity head loss heat heavy metals incineration increase laboratory land application lime loading machine measured mechanical mesophilic methane method mg/L microbial microorganisms Newtonian fluids nitrogen odor operation Org-N organic oxygen particles pathogens phosphorus pollutant polyelectrolytes polymer primary sludge production pump pyrolysis raw primary reduction removal rheology settling velocity sewage sludge shear shown in Figure sludge dewatering sludge disposal sludge floc sludge produced sludge solids soil solids concentration solids recovery specific resistance stabilization surface suspended solids Table tank Technology temperature thermal thermophilic thickening typical underflow uptake Vesilind viscosity volatile waste activated sludge wastewater sludge wastewater treatment plants