The paper investigates an alternative treatment plant for the typical wastewater effluent of a cheese-making industry, mainly composed acid or sweet whey mixed with washing-water. Two variable parameters have been considered during tests: four temperatures (39, 46, 53 and 60 °C) three solid content values (30%, 50% 70%) concentrated product. minimum maximum removal efficiency (pollutant amount ...

An AnSBBR (anaerobic sequencing batch reactor containing biomass immobilized on an inert support) with liquid phase recirculation, containing a 3.5 L working volume, treated 1.5 L of cheese whey wastewater in 3 and 4 h cycles at 30 °C to produce biohydrogen. From startup the bioreactor presented process instability. To overcome this problem the following measures were taken, however without suc...

for small cheese-making factories, with no effluent treatment plants, whey can be a serious problem and the landfarming technique represents an alternative for its disposal. however, whey may contain antibiotic residues at the maximum residue limits. therefore, in this work, we evaluated the phytotoxic effect of different concentrations of five antibiotics (enrofloxacin, kanamycin, oxytetracycl...

This study reported the application of 15N-stable isotope probing (SIP) to identify active hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX)-utilizing microorganisms in groundwater microcosms. Fifteen 16S rRNA gene sequences were derived from the 15N-DNA fraction (contributed from active microorganisms capable of using RDX as a nitrogen source) of microcosms receiving cheese whey. The 16S rRNA gene...

Saccharomyces cerevisiae strain W303 was transformed with two yeast integrative plasmids containing Kluyveromyces lactis LAC4 and LAC12 genes that codify β-galactosidase and lactose permease respectively. The BLR030 recombinant strain was selected due to its growth and β-galactosidase production capacity. Different culture media based on deproteinized cheese whey (DCW) were tested and the best ...