Characterization of dissolved organic matter released from activated sludge and aerobic granular sludge biosorption processes for heavy metal treatment via a fluorescence approach

2017 ◽  
Vol 124 ◽  
pp. 326-333 ◽  
Author(s):  
Dong Wei ◽  
Keyi Zhang ◽  
Siyu Wang ◽  
Boqun Sun ◽  
Na Wu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Activated Sludge ◽  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
Metal Treatment

scholarly journals The effect of the excess sludge pretreatment on biogas productivity

2019 ◽  
Vol 1 (22) ◽  
pp. 75-86
Author(s):  
Katarzyna Bernat ◽  
Magdalena Zielińska ◽  
Dorota Kulikowska ◽  
Agnieszka Cydzik-Kwiatkowska ◽  
Irena Wojnowska-Baryła ◽  
...  
Keyword(s):  
Organic Matter ◽  
Activated Sludge ◽  
Biogas Production ◽  
Granular Sludge ◽  
Aerobic Granular Sludge ◽  
Excess Sludge ◽  
Sludge Pretreatment ◽  
Biogas Productivity

To intensify biogas production during anaerobic stabilization of organic matter in sludge, pretreatment is applied. The effect of pretreatment of excess activated sludge (AS) and excess aerobic granular sludge (GS) on biogas productivity (BP) and composition was investigated. The sludge was pretreated with homogenization (6,500 rpm for 0.5 min (H0.5) and 1 min (H1.0)) or ultrasound disintegration at 20 kHz (50% amplitude for 2 min (D50%_2.0) and 4 min (D50%_4.0), and 100% amplitude for 4 min (D100%_4.0)). BP of AS of GS without pretreatment was 603.3±5 dm3/kg TS (793.4±7 dm3/kg VS); that was 200.6±4 dm3/kg TS (480.8±6 dm3/kg VS). With disintegration, the BP of AS increased by 7.8% (650.4±10 dm3/kg TS) (D50%_2.0) and 16.1% (700.6±11 dm3/kg TS) (D100%_4.0), and that of GS increased by 7.0% (214.0±5 dm3/kg TS) (D50%_2.0) and 16.0% (232.8±5 dm3/kg TS) (D100%_4.0). With homogenization, BP increased by 2.0-3.0% (AS) and 1.6-3.2% (GS).

Landscape integration of North Patagonian mountain lakes: a first approach using characterization of dissolved organic matter

2015 ◽  
Vol 20 (1) ◽  
pp. 19-32 ◽  
Author(s):  
Patricia E. Garcia ◽  
María C. Dieguez ◽  
Claudia Queimaliños
Keyword(s):  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Mountain Lakes
Sign in / Sign up

Export Citation Format

Share Document