1. Impact of microwave radiation on the process of aerobic digestion of sewage sludge
- Author
-
Maciej Malarski Abde, Piotr Nowak, Tadeusz Siwiec, and Justyna Czajkowska
- Subjects
lcsh:TC401-506 ,Environmental Engineering ,disintegration ,0208 environmental biotechnology ,Geography, Planning and Development ,lcsh:River, lake, and water-supply engineering (General) ,02 engineering and technology ,010501 environmental sciences ,Development ,Pulp and paper industry ,01 natural sciences ,Agricultural and Biological Sciences (miscellaneous) ,microwaves ,020801 environmental engineering ,aerobic stabilization ,Scientific method ,Sewage sludge treatment ,Aerobic digestion ,dry organic matter ,Microwave ,Sludge ,0105 earth and related environmental sciences ,Water Science and Technology - Abstract
The process of aerobic stabilization of sludge is a process used in small or medium sewage treatment plants (up to 15 000 ENI). Owing to its energy intensity resulting from the need for intensive sedimentation and longterm process, many researches are being conducted on its intensification. One such method is disintegration. The purpose of disintegration is to increase the susceptibility of sewage sludge to aerobic decomposition by breaking up sediment flocs into fine particles along with the breakdown of cell membranes and then allowing biodegradation. The paper presents results of research of aerobic stabilized sludge, which is a mixture of non-disintegrated and microwave disintegrated sludge in different volume proportions. It was shown that sludge stabilized more quickly during the first days of the process. The minimum reduction of organic solids required at 38% for stabilized sludge occure earlier in mixed sludge tests than in non-disintegrated sludge.
- Published
- 2017