High rate algal ponding (HRAP) and constructed wetland (CW) technology was used to remove nutrients from brewery effluent, thus recovering water and producing algal biomass. The HRAP/CW system was effective in reducing chemical oxygen demand (COD) from ca. 150 mg/L to below 75 mg/L, and ammonia from 30 mg/L to below 1 mg/L. The HRAP was initially inconsistent in phosphate removal, but phosphate...

In this study, various chemical and advanced oxidation processes were tested for enhancement of anaerobic biodegradation of olive mill effluent (OME). The experiments were carried out in a 20 L lab-scale ACF reactor packed with cross-flow filter material made of water-resistant cardboard with a specific surface area of ~300 m m. The ACF reactor was operated at chosen OLR conditions and fed with...

  A novel rotating disc electrochemical (RDE) reactor has been developed to treat tannery effluent. Experiments were carried out in batch, batch recirculation, and once-through modes in the reactor covering wide range of operating conditions. The effect of current density (i), cathode rotation speed (R), electrolysis time (t), influent pH, and electrolyte flow rate (Q) on the pollutant removal ...

The present study focuses on the improvement in the effluent treatment for the effluent generated from a cotton textile industry employing three reactive dyeing methods viz., Exhaust method, Pad-Dry-Cure method, and Pad-Batch method. Stabilisation pond, aeration tank, and aerobic biological treatment (using E-Coli type bacteria) are simulated in the laboratory in a series operation. Results rev...

The present work was aimed at studying the efficiency of the combined process of biofiltration with ozonation to improve the quality of secondary effluent. The secondary effluent from the Dinapur Sewage Treatment Plant Varanasi, India was used in this work. The process of biofiltration with the plant species of Eichornia crassipes and Lemna minor, at a flow rate of 262 ml min(-1) and plant dens...

The objective of this study was to investigate the influence of flow rate on transport and retention of bacteriophage tracers in a fractured shale saprolite, which is a highly weathered, fine-grained subsoil that retains much of the fabric of the parent bedrock. Synthetic ground water containing PRD-1, MS-2, and bromide was passed through a saturated column of undisturbed shale saprolite at rat...

BURXS, T. F., AND J. P. LONG. .pHydroxytryptamine release into dog intestinal vasculature. Am. J. Physiol. 21 I (3) : 6x g-625+ I 966. -The juxtaintestinal arteries of isolated intestinal segments of dogs were perfused with Krebs bicarbonate solution and the effluent solution from the vein was either collected or directly superfused over other test organs. By use of isolated superfused rat uter...