Machnicka A. Disintegration as a key-step in pre-treatment of surplus activated sludge / A. Machnicka, E. Nowicka, K. Grubel // Химия и технология воды. - 2017. - 39, № 1. - С. 84-97. - Бібліогр.: 33 назв. - англ.This study has been carried out to investigate the effect of microwave, alkalization andfreezing on surplus activated sludge disintegration (release oforganic/inorganic substances into the supernatant) and mesophilic fermentation. After applying pre-treatments, chemical oxygen demand increased by 7 - 35 times, disintegration degree was 35 - 47 %, proteins by 5 - 25, carbohydrates by 2 - 3, phosphates 7 - 22 and ammonium by 3 - 16 times. Disintegration by microwave, alkalization and freezing has a positive effect on the rate of sludge anaerobic digestion. Biogas production increased by: 62; 49 and 58 %, for microwave radiation, alkalization and freezing, respectively. The conducted research shows that the application of disintegration as a pre-treatment of surplus activated sludge is an effective method, allowing for practical using sewage sludge. Індекс рубрикатора НБУВ: Н761.204.4
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Шифр НБУВ: Ж14165 Пошук видання у каталогах НБУВ
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