Process performance evaluation of intermittent–continuous stirred tank reactor for anaerobic hydrogen fermentation with kitchen waste

State of the art and future concept of food waste fermentation to bioenergy

“…Single-phase hydrogen/methane fermentation Food waste, fruit-vegetable waste, dewatered sewage sludge n.a n.a n.a 2.33 m 3 m À 3 d À 1 0.39 m 3 kg À 1 VS CSTR [30] Food waste n.a n.a n.a 72 mL g À 1 VSS inoculum d 940 mL g À 1 VSS sub Batch reactor [88] Vegetable waste n.a n.a n.a Canteen based composite food waste 69.95 mmol Anaerobic SBR n.a n.a n.a [31] Vegetable waste 2.56 mL-H 2 h À 1 85.65 mL-H 2 g À 1 VS Batch reactor n.a n.a n.a [59] Municipal food waste, kitchen wastewater 6.0 7 0.5 L-H 2 d À 1 245 mL g-COD À 1 Anaerobic baffled reactor n.a n.a n.a [34] Municipal food waste n.a 370 mL-H 2 g À 1 VS Anaerobic baffled reactor n.a n.a n.a [33] Vegetable kitchen waste 1.0 L-H 2 L À 1 d À 1 1.7 mmol g-COD À 1 I-CSTR n.a n.a n.a [25] Kitchen wasteþ white rice 1.6 L-H 2 L À 1 d À 1 1.27 7 0.51 mmol g-COD À 1 I-CSTR n.a n.a n.a [26] Kitchen waste 60 l-H 2 L À 1 d À 1 1.2 mmol g-COD À 1 I-CSTR n.a n.a n.a [28] Kitchen waste -72 mL g À 1 VS Inclined plug flow reactor n.a n.a n.a [19] Starch-rich kitchen waste 2.2 L-H 2 L À 1 d À 1 2.1 mmol g-COD À 1 I-CSTR n.a n.a n.a [27] Vegetable kitchen waste 0.48 mmol-H 2 g À 1 VSS h À 1 0.57 mmol g-COD À 1 Batch reactor n.a n.a n.a [38] Two-phase hydrogen and methane fermentation Food waste 10.4 L-biogas L À 1 d À 1 (52-56% H 2 ) 205 mL g À 1 VS added CSTR 4.7 L-biogas L À 1 d À 1 (70-80% CH 4 ) 464 mL g À 1 VS Fluidized reactor [23] Food waste 11.1 L L À 1 -fed d À 1 2.5 mol mol À 1 hexose CSTR 47.4 L L À 1 -fed d À 1 287 mL g-COD À 1 Biogas sparging reactor [21] Potato waste 2.1 L L À 1 d À 1 85 mL g tank reactor (I-CSTR), operated in fill-and-draw mode has been widely documented. A hydrogen production rate of 1.0 L-H 2 L À 1 d À 1 and a yield of 1.7 mmol-H 2 g-COD À 1 was achieved upon digesting vegetable kitchen waste in I-CSTR [25].…”

“…In another study, the use of starch-rich kitchen waste as a feedstock in an I-CSTR resulted in an average production rate of 2.2 L-H 2 L À 1 d À 1 and a maximum yield of 2.1 mmol-H 2 g-COD À 1 [27]. Yet another study on hydrogen production from kitchen waste-corn starch mixture using a similar type of reactor reported a production rate of 2.9 L-H 2 L À 1 d À 1 [28]. Stirred tank reactor (STR) operated in batch mode has also been explored and found feasible for hydrogen production [29].…”

Comparison of different mixed cultures for bio-hydrogen production from ground wheat starch by combined dark and light fermentation

“…Most of the dark fermentation studies were done in batch culture using different substrate and anaerobic cultures [13,17,19,20,[26][27][28][29]. Some recent studies utilized continuous culture for bio-hydrogen production from different substrates [7,9,18].…”

Effect of Methanogenic Inhibitors, Inocula Type, and Temperature on Biohydrogen Production From Food Components

“…Shin et al, (2004) observed hydrogen production batch reactors using a mesophilic and thermophilic inocula from laboratory scale acidogenic reactor incubated at 37 or 55 ºC (Shin et al, 2004). Hydrogen production has also been observed from semicontinuous reactors using inocula from anaerobic digesters (Shin and Youn, 2005;Kim et al, 2008) or a pilot scale acidogenic reactor (Li et al, 2008). Kim et al (2008) also used heat treatment to supress methanogenic activity.…”