OBJECTIVE It aims to investigate the changes in composition and structure of bacterial communities developing on biological activated carbon (BAC) particles, and the bacterial functions. METHOD A pilot plant had been in service for 180 days, aiming to develop bacterial communities on activated carbon naturally. After 180 days of operation, the bacterial communities were determined by denaturi...

OBJECTIVE To measure the endocrine disrupting chemicals (EDCs) in wastewater and evaluate the EDCs removal efficiencies in the municipal wastewater treatment plants (WWTP). METHODS A battery of in vitro recombinant yeast bioassays incorporated with exogenous metabolic activation system (rat liver preparation, S9 mix) was conducted to assess the estrogen receptor (ER), androgen receptor (AR), ...

Pollution from industrial effluents and domestic waste are two of the most common sources environmental pollutants. Due to rising population manufacturing industries, large amounts pollutants were produced daily. Therefore, enhancements in wastewater treatment render treated provide effective solutions essential return clean safe water be reused industrial, agricultural, sectors. Nanotechnology...

The removal of phosphorus from wastewater is a common procedure. Improving water quality the aim treatment. There are many types conventional methods that have been used for phosphorus. Phosphorus reaction with chemicals can be removed immediately water. However, use often increases cost This study aims to investigate physical and chemical characteristics RCA influence phosphorus, as well perce...

In 2015, the town of El Port de la Selva in Spain implemented soil-aquifer treatment (SAT) using tertiary treated wastewater effluents to replenish local potable aquifer. This study evaluated initial phase this indirect water reuse system including a characterization hydraulic conditions aquifer and monitoring microbial contaminants 151 chemicals emerging concern (CECs). The combined resulted v...

Adsorption and water treatment of Ca (II) and Mg (II) hardness were investigated via adsorption of metal ions onto commercial polyacrylic acid hydrogel beads as a novel sorbent for metal ions (Ca2+, Mg2+) removal and water treatment. Batch equilibrium technique was carried out under the influence of solution pH, contact time, sorbent dosage, initial metal concentration and...

Adsorption and water treatment of Ca (II) and Mg (II) hardness were investigated via adsorption of metal ions onto commercial polyacrylic acid hydrogel beads as a novel sorbent for metal ions (Ca2+, Mg2+) removal and water treatment. Batch equilibrium technique was carried out under the influence of solution pH, contact time, sorbent dosage, initial metal concentration and...

This document is an evaluation of the BioTrol, Inc., Aqueous Treatment System (BATS), a fixed-film, aerobic biological treatment process for contaminated groundwaters and other wastewaters. This report summarizes and analyzes the results of the Superfund Innovative Technology Evaluation (SITE) Program’s six week demonstration at the MacGillis and Gibbs Company wood preserving site in New Bright...

An estimation of the organic content of water has been used for some time as an indicator of water qual i ty (E.P.A. 1975). The carbon adsorption method (CAM) was developed in 1951-52 for this purpose but is no longer recommended (CAPELLI et al . 1977, OTSON et al . 1979). With recent improvements in analytical instrumentation, total organic carbon (TOC) determinations are being used to assess ...

................................................................................................................................ ii TABLES .................................................................................................................................... vii ACKNOWLEDGEMENTS ...................................................................................................... v...