Abstract: Insufficient oxygen transfer can result in anaerobic biofilms and odor generation during biochemical oxygen demand (BOD) removal in trickling filters, and can limit ammonia oxidation in nitrifying trickling filters. Since ...

Abstract: Perchlorate

Abstract: Discrete molecular size distributions of dissolved organic matter (DOM) in natural waters and wastewaters are usually determined using an array of ultrafiltration membranes in stirred cells. However, many researchers neglect ...

Abstract: To improve the feasibility of soil-aquifer remediation using bioaugmentation, more efficient methods are needed to widely disperse pollutant-degrading bacteria in porous media. Under water-saturated conditions, bacteria ...

Abstract: To understand the effect of a non-aqueous-phase liquid (NAPL) on bacterial transport, column experiments in the presence and absence of a NAPL were conducted using two bacterial strains and two different porous media. The ...

Abstract: Dispersion in porous media has been postulated as a mechanism that can increase particle transport, but the magnitude of increased transport predicted using analytical models of column experiments is a function of the ...

Abstract: Prior to the imposition of effective source‐control measures in 1970, large quantities of DDT were discharged to the Los Angeles County municipal sewer system and, subsequently, to the Pacific Ocean. A fraction of this ...

Abstract: Although chlorate (

Abstract: Aquifer sediments contain a wide distribution of particle sizes, but only a single collector diameter (