TY - JOUR
AU - Björkman, Å.
AB - 4th International Congress of the IRGR, Basel, 2-5 June 1969 Working Group 6 By A. BJ6RKMAN, Sweden Opening Paper Among the methods used for the disposal of sewage sludge, heat processing plays a growing role for the following reasons: 1. Heat processing makes harmless the pathogens present in the sludge without any detriment to its quality for agricultural use. 2. Heat processing at average temperatures facilitates sludge dehydration. 3. Heat processing at higher temperatures further reduces the water content of the sludge to be dried and facilitates its transportation and utilization in agriculture. 4. If the properties of the sludge or the absence of sale openings preclude its use in agriculture, heat processing, namely incineration, is the most effective way of reducing to a minimum the weight and volume of sewage sludge. The aims and methods of various types of heat processing for sewage sludge are to be mentioned briefly. International comparisons of cost are not reliable and the few values given are to be considered as general information only. Thermal hygienizing [1] As a rule, the transportation of wet sludge is the cheapest way of disposal for agri- cultural use. However, spores and long enduring forms of some 
TI - Thermal treatment of sewage sludge
JF - Aquatic Sciences
DO - 10.1007/BF02543696
DA - 2006-12-15
UR - https://www.deepdyve.com/lp/springer-journals/thermal-treatment-of-sewage-sludge-BzULNQpVxT
SP - 670
EP - 681
VL - 31
IS - 2
DP - DeepDyve
ER -