Over the last decades, treatment of domestic wastewater promoted by environmental regulations have reduced human health risks and improved water quality. However, ecological caused effluents plants (WWTPs) discharged into rivers still persist. Moreover, evolution these in future is intimately related to effects changing climate, especially regarding streamflow receiving rivers. Here, we present...

10 P recovery from wastewater treatment plants (WWTPs) as struvite fertiliser is a recognised method of 11 improving P use efficiency and reducing P losses into the environment. The main driver for P recovery from the 12 water industry viewpoint is the reduction in the nuisance of struvite clogging inside pumps and pipes. Struvite 13 recovery leads to an average P recovery rate of 72±7% from ce...

BACKGROUND The global public health community has closely monitored the unfolding of the 2009 H1N1 influenza pandemic to best mitigate its impact on society. However, little attention has been given to the impact of this response on the environment. Antivirals and antibiotics prescribed to treat influenza are excreted into wastewater in a biologically active form, which presents a new and poten...

The advantages and drawbacks of existing wet chemical phosphorus (P) recovery technologies, their applicability to different types of sewage sludge ash (SSA) and the role of the decay products of detergent zeolites as a source of reactive Al in SSA are analyzed. Since neither a purely acidic nor a purely alkaline treatment are able to provide satisfactory technical solutions a wet chemical phos...

This paper presents a very useful software tool to design, simulate and optimise wastewater treatment plants. The program is called DESASS (DEsign and Simulation of Activated Sludge Systems) and has been developed by CALAGUA research group. The mathematical model implemented is the Biological Nutrient Removal Model No.1 (BNRM1) which allows simulating the most important physical, chemical and b...

An important part of environmental degradation is caused by the discharge untreated or mistreated wastewater. The reuse water paramount to National Strategic Plan for Water Supply and Wastewater Sanitation Sector in Portugal Spain. Since centralized treatment systems have proved be inefficient, tackling issues requires a regional approach. plants (WWTPs) mitigate impacts contribute financial sa...

Wastewater treatment plants (WWTPs) are fundamental to enable the transition towards principles of a circular economy in water supply. In Mediterranean Spain, an area with recurrent episodes stress, treated wastewater may become critical resource for future. However, its incorporation into array potential options opens up questions regarding different qualities obtained each treatment, extent e...

Gadolinium (Gd), a member of the rare earth elements (REE), is becoming an increasingly observed microcontaminant in waters developed regions. Anthropogenic Gd anomalies were first noted 1996 and determined to be sourced from Gd-based contrast agents used magnetic resonance imaging (MRI). This study investigates North Carolina’s Triangle Area, focusing on surrounding wastewater treatment plants...

MOST SEWAGE COLLECTION and treatment systems in the U.S. are 30 to 100 years old [EPA(b)] with a total estimated value exceeding $1 trillion [EPA(a)]. EPA estimates that in the year 2000, more than 1.2 billion gallons of raw sewage poured into waterways due to overflow, blockage, leakage or other system faults [EPA(b)]. The construction projects needed to correct these problems will be many and...

Rapid urbanization has caused an increase in the discharge of inorganic elements into environment; however, knowledge about fate and annual variations multiple wastewater treatment plants (WWTPs) is limited. To understand distribution change those elements, we collected analyzed sludge samples from seven WWTPs a southeast city China. Results revealed elemental concentration ranging 0.06 μg·L−1 ...