Anaerobic co-digestion of oil refinery waste activated sludge and food waste

2021 ◽  
pp. 1-24
Author(s):  
Tayane Miranda Silva de Castro ◽  
Magali Christe Cammarota ◽  
Elen Beatriz Acordi Vasques Pacheco
Keyword(s):  
Activated Sludge ◽  
Food Waste ◽  
Oil Refinery ◽  
Waste Activated Sludge ◽  
Refinery Waste

Enhancement of biogas production in anaerobic co-digestion of food waste and waste activated sludge by biological co-pretreatment

Energy ◽  
2017 ◽  
Vol 137 ◽  
pp. 479-486 ◽  
Author(s):  
Jingxin Zhang ◽  
Wangliang Li ◽  
Jonathan Lee ◽  
Kai-Chee Loh ◽  
Yanjun Dai ◽  
...  
Keyword(s):  
Activated Sludge ◽  
Food Waste ◽  
Biogas Production ◽  
Waste Activated Sludge

Solubilization of waste activated sludge by alkaline pretreatment and biochemical methane potential (BMP) tests for anaerobic co-digestion of municipal organic waste

2003 ◽  
Vol 48 (8) ◽  
pp. 211-219 ◽  
Author(s):  
N.-H. Heo ◽  
S.-C. Park ◽  
J.-S. Lee ◽  
H. Kang
Keyword(s):  
Activated Sludge ◽  
Food Waste ◽  
Organic Waste ◽  
Waste Activated Sludge ◽  
Feed Mixture ◽  
Biochemical Methane Potential ◽  
Methane Recovery ◽  
Attractive Option ◽  
Methane Potential ◽  
Anaerobic Digestibility

Biochemical methane potential (BMP) tests have been carried out to determine the anaerobic digestibility of the waste activated sludge (WAS) and the sludge pretreated by NaOH (PWAS). The optimal NaOH dosage was determined to be 45 meq NaOH/L. The maximum SCOD solubilization was 27.7, 31.4 and 38.3% at the temperatures of 25, 35 and 55°C respectively after 4 hours reaction. The final methane yield of simulated food waste (SFW) was 430 ml CH4/g VSadded, and those of PWAS (25°C), PWAS (35°C) and PWAS (55°C) was 274, 286 and 310 ml CH4/g VSadded respectively after 20 days. The figures were 66%, 73% and 88% higher than that of WAS. The methane production in anaerobic co-digestion is considerably affected by the fraction of SFW and PWAS in the feed. The anaerobic digestibility of the feed mixture (SFW with PWAS) is higher than that of the feed mixture (SFW with WAS). Anaerobic co-digestion of food waste with the PWAS is found to be an attractive option to reduce the solid waste volume with improved methane recovery.

Sign in / Sign up

Export Citation Format

Share Document