Trace elements enhance biofilm formation in UASB reactor for solo simple molecule wastewater treatment.

In this paper, trace elements (TE) adding was investigated in one bench-scale UASB reactor treating solo simple molecule wastewater with the aim of evaluating its effect on enhancing biofilm formation. After adding sufficient TE (3 mL/L) in the influent, during 3 days, COD removal efficiency increased from 74% to 90% comparing to no adding TE. Over 55 days of operation, the organic loading rate (OLR) reached 11 g/L/day with COD removal efficiencies greater than 90%.

PVA-gel beads enhance granule formation in a UASB reactor.

PVA-gel beads were used as a biocarrier in a lab-scale UASB reactor treating synthetic wastewater composed of corn steep liquor (CSL) with the aim of evaluating its use as a growth nucleus to enhance granule formation. Over 117 days of operation, the organic loading rate was increased to 22.5kgCOD/m3/day with an influent COD of about 10.

Characterization of a histidine- and alanine-rich protein showing interaction with calreticulin in rice.

Calreticulin (CRT) is a major calcium-sequestering protein in the endoplasmic reticulum and has been implicated in a variety of cellular functions. To analyze the function of CRT in rice, a yeast two-hybrid protein interaction assay was used for identifying interacting proteins. Fourteen of 17 interacting cDNA clones found coded for a novel histidine- and alanine-rich protein (OsHARP) of 342 amino acid residues.