Potential of using green adsorbent of heavy metal removal from aqueous solutions: Adsorption kinetics, isotherm, thermodynamic, mechanism and economic analysis

Sequential cultivation of microalgae in raw and recycled dairy wastewater: Microalgal growth, wastewater treatment and biochemical composition

Continuous electrocoagulation of cheese whey wastewater: An application of Response Surface Methodology

Hydrogen (H2) is one of the most promising alternative fuel sources for satisfying future energy demand, and fermentative hydrogen production is advantageous over other processes. In recent decades, considerable research has been conducted on H 2 production from carbohydrate-rich materials since it is a cost-effective approach and has the ability to generate intensive renewable energy from organic wastes. Dairy wastewater is a high volume industrial wastewater and with its immense carbohydrate content is an attractive candidate for sustainable fermentative H 2 production. The present paper provides comprehensive evaluation of recent reports on fermentative H 2 production from dairy wastewater. Important effective parameters and current bioreactor technologies for H 2 production from dairy wastewater are discussed. © 2014 Society of Chemical Industry

A review on fermentative hydrogen production from dairy industry wastewater

The present study evaluated the influence of organic loading rate in biohydrogen production from dairy wastewater in an anaerobic fluidized-bed reactor inoculated by natural fermentation of the wastewater used during the operational period. The support material for biomass adhesion was shredded tire. The reactor had a working volume of 908.4 cm3. Biohydrogen production was evaluated using three different organic loading rates (OLR) of 28.7 kgCOD m−³d−1, 53.2 kgCOD m−³d−1 e 101,7 kgCOD m−³d−1 corresponding to the Hydraulic Retention Time (HRT) of 8 h (2.7 L d−1), 6 h (3.6 L d−1) and 4 h (5.4 L d−1), respectively. The hydrogen yield decreased with increasing organic loading rate (OLR) from 2.56 ± 0.62 mol H2 mol carbohydrate−1 to 0.95 ± 0.28 mol H2 mol carbohydrate−1 as the OLR increased from 28.65 kgCOD m−³d−1 to 95.76 kgCOD m−³d−1. The hydrogen content in the biogas (volume of H2/ volume of biogas) produced and the highest volumetric production were respectively 35.72 ± 9.43% and 0.80 ± 0.21 LH2 h−1 L−1 obtained when the OLR was 53.25 ± 7.81 kgCOD m−³d−1. The main metabolites produced were acetic acid (67.15%-87.42%) and ethanol (6.01%-13.09%). Increasing the applied OLR also caused an increase in bacterial diversity as evidenced by the highest value of the Shannon-Wiener index (2.811) corresponding to the operational phase of the highest OLR (95.76 ± 29.10 kgCOD m−³d−1).

Biohydrogen production from dairy industry wastewater in an anaerobic fluidized-bed reactor

Dairy wastewater polluting load and treatment performances of an industrial three-cascade-reactor plant

Corrigendum to “Aerobic treatment of dairy wastewater in an industrial three-reactor plant: Effect of aeration regime on performances and on protozoan and bacterial communities” [Water Res. 46 (2012) 3334–3344]

Aerobic treatment of dairy wastewater in an industrial three-reactor plant: Effect of aeration regime on performances and on protozoan and bacterial communities

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Dairy wastewater polluting load and treatment performances of an industrial three-cascade-reactor plant

Corrigendum to “Aerobic treatment of dairy wastewater in an industrial three-reactor plant: Effect of aeration regime on performances and on protozoan and bacterial communities” [Water Res. 46 (2012) 3334–3344]

Aerobic treatment of dairy wastewater in an industrial three-reactor plant: Effect of aeration regime on performances and on protozoan and bacterial communities