The use of membranes for treating wastewater is now widespread. Membrane bioreactors (MBRs) have rapidly emerged as a key technology for both industrial and municipal wastewater treatment due to their ability to deliver high final effluent water quality and their relatively small footprint as compared to a conventional Activated Sludge (AS) process. The costs of MBRs have fallen by almost a fac...

Efficient treatment of tannery effluent is one of the serious problems faced for the past few decades. Since these industrial effluents contain more organic pollutants the most favorable option to treat this is by biological treatment process. In this study a lab scale submerged aerobic flat sheet membrane bioreactor was operated under gravity drain operation for the treatment of tannery efflue...

A pertraction membrane plant is designed for the treatment of wastewater containing hexavalent chromium and its recovery for industrial reuse. Pertraction is a new technology that combines the efficiency of emulsion liquid membranes with the advantages of using hollow fibber membrane modules. It can selectively remove low concentrated metals from process streams and reach high concentrations of...

results the results showed that the fog amount in input raw sewage in the mwwtp from june 2011 to september 2011 was around 25.5 mg/l and the amount in treated wastewater was about 8.1 mg/l. the fog removal efficiency in this refinery was about 70% and met the environmental standards for the discharge (less than 10 mg/l) (p < 0.05). conclusions the effluent can be discharged to surface waters o...

This study was conducted to examine the possibility of using construction solid waste (CSW), an inevitable by-product of the construction and demolition process, as the main substrate in a laboratory scale multi-stage constructed wetland system (CWs) to improve phosphorus (P) removal from secondary sewage effluent. A tidal-flow operation strategy was employed to enhance the wetland aeration. Th...

This paper describes the performance of Granular Activated Carbon (GAC) to adsorb and separate glucose and maltose solutes from the industrial effluents by adsorption process. In this study, the capability of Granular Activated Carbon (GAC) to adsorb glucose and maltose were experimentally examined. Commercial GAC (mesh 12-20), supplied by Sigma Aldrich company in...

Toxicity tests using standard effluent test procedures described by the U.S. Environmental Protection Agency were conducted with Ceriodaphnia dubia, fathead minnows (Pimephales promelas), and seven threatened and endangered (listed) fish species from four families: (1) Acipenseridae: shortnose sturgeon (Acipenser brevirostrum); (2) Catostomidae; razorback sucker (Xyrauchen texanus); (3) Cyprini...

Introduction Effluents from the textile industry are not only colored but also contain large amounts of color, COD, BOD and dissolved solids. Textile industry is the one producing huge amount of wastewater. Due to stringent environmental regulations, treatment is mandatory before discharge the effluent. Conventional treatment methods include activated carbon adsorption, solvent extraction, chem...

This study assessed the aquatic toxicity of the River Keya during its passage through the Hsin Chu City, Taiwan. The River Keya receives effluent from the Union Wastewater Treatment Plant of Hsin Chu Science Industrial Park (UWTP-HCSIP) primarily covering more than 500 semiconductors-related high-tech industries. Although the effluent from the UWTP-HCSIP has met the current environmental regula...