Proper management of water is a challenge for every individual but especially for companies. Nowadays also legislation obliges companies to clean the wastewater before being discharged into municipal public sewer especially if they use some chemicals or oily elements in their production process. Construction of the wastewater cleaner depends directly on the way of pollution, the amount of conta...

A benchmark for the test of control scenarios of sequencing batch reactors (SBR) used for wastewater treatment is proposed. The plant layout includes a buffer tank for wastewater storage in front of the SBR. Performance criteria based mainly on the quality of the effluent are given. The use of the benchmark is illustrated by the study of the effects on the effluent of the control of dissolved o...

The burgeoning of slums in the developing world poses an urgent environmental threat due to insanitary conditions and rampant disposal of wastewater. To assess the potential environmental impacts, domestic wastewater from Ghana's biggest urban slum Old Fadama was characterised throughout the dry and wet seasons. The study drew on a comprehensive assessment of the general sanitary conditions in ...

Aerosol samples collected at the Muskegon County Wastewater Management System Number 1 spray irrigation site in Michigan by using the Army prototype XM2 Biological Sampler/Collector were examined for the presence of animal viruses, coliphages, and bacteria. Air samples, collected in Earle lactalbumen hydrolysate, and wastewater samples were filtered through a 0.45- and 1.2-micron membrane filte...

This thesis is part of a larger project which began in response to a request by the Spanish water agengy, Cadagua, for advice on life cycle assessment (LCA) and environmental impacts of Cadagua operated wastewater treatment plants. The project uses the LCA software GaBi and focuses on La Gavia Wastewater Treatment Plant in Madrid. This thesis analyzes three sludge management options that La Gav...

Up until 2010, due to extreme drought conditions in much of Eastern Australia arising from a predominantly El Nino weather cycle in the Pacific Ocean over the preceding decade, Inflow and Infiltration(I/I) management practices in Australia had not progressed or been implemented to any great extent further from the initial implementation work done in this field, mainly in Sydney in the 1990s. Ho...

The nutrient management of phosphorus (P) contained in swine wastewater is an important challenge to enhance P use efficiency. In the present study, assessment of P recovery from swine wastewater in Beijing was performed. P amounts of swine wastewater increased from 11,687 tons in 1980 to 16,237 tons in 2014. Without treatment of swine wastewater, P concentration will reach a maximum 1.20 mg/L....

Nitrogen and chlorophyll-a concentrations in estuarine systems often correlate positively with increased nitrogen input. To determine the interactions between nitrogen load, physical drivers, and water quality indicators, we estimated nitrogen inputs to 28 estuaries within the Buzzards Bay, Massachusetts (USA) watershed from 1985 to 2013. Estimates were derived by combining parcel specific wast...

Whether water systems can be operated successfully and sustainably is influenced by the attitudes and willingness of stakeholders involved in the management of such systems. This study quantitatively evaluates the interests of different stakeholders in wastewater reuse systems in Beijing. Such interests comprise economic, environmental, and social effects induced by the wastewater reuse systems...

Providing clean and affordable water to meet human needs is a grand challenge of the 21st century. Worldwide, water supply struggles to keep up with the fast growing demand, which is exacerbated by population growth, global climate change, and water quality deterioration. The need for technological innovation to enable integrated water management cannot be overstated. Nanotechnology holds great...