Wastewater reuse

The main constraint in lagoon treatment is the high suspended solids (SS) in the effluents, which is primarily due to high concentrations of algal cells in the finished effluent. The objective of this study was to remove turbidity originating from algae present in oxidation pond effluents by an easy

A membrane bio-reactor (MBR) process was used as a backbone treatment component at the Qingdao International Airport Wastewater Treatment Station (WWTS) Qingdao, China, to biologically remove COD, nitrogen and phosphorus. This paper describes the design of the MBR as well as the operating results of

In biological treatment processes, the effluent contains some portion of organic material originating from soluble microbial products (SMP) that is closely related with extracellular polymeric substances (EPS), although the biological activity is maximized. These SMP should be considered important t

Magnetic ion exchange (MIEX®) resin can remove a majority of hydrophilic compounds and a significant amount of hydrophobic compounds from biologically treated secondary effluent within a short contact time of 20 min. It removed a majority of small molecular weight organic compounds from the wastewat

During the past few years, Kuwait has been encouraging the development of alternative water resources. This stems from the fact that the available natural water resources are scarce, and water demands are growing due to increasing population growth. A potential alternative water resource which may r

This study explains the role of coagulation in membrane filtration of wastewater for reuse. For this purpose, a coagulation–ultrafiltration (UF) membrane system was used to treat secondary effluent from a nearby wastewater treatment plant using a rotating biological contactor. The study proceeded wi

For a specific textile finishing company strategies for water recycling and recovery of valuable chemicals have been developed. A comprehensive study of the company’s resource consumption and emission profile was performed. On this basis selected end of the pipe and integrated recycling options were

There has been great demand for development of technologies that remove toxic heavy metal ions from wastewater. Chemical precipitation operation is known to remove heavy metal ions from water. In this study applicability of alkaline reagents such as Ca(OH)2 (lime) and NaOH (caustic soda) in removing

Following an increased interest in the last decade to employing peracetic acid (PAA) as an alternative disinfectant to chlorination, a study was started to investigate the technical, economic and chemical suitability of PAA for disinfecting municipal wastewater to be reused in agriculture. Laborator

This paper relates to an experimental investigation about the treatment processes of large quantities of used water from agricultural uses. It is collected after its natural mixing with domestic and industrial used waters, treated according to administrative laws, and drained by gravity into an open