By Despo Fatta-Kassinos, Dionysios D. Dionysiou, Klaus Kümmerer
This quantity bargains a close review of at present utilized and proven wastewater therapy applied sciences and the combination of complex tactics to take away hint natural contaminants and microorganisms. It discusses the possibility of improved organic remedy to provide effluent compatible for reuse, new techniques for city wastewater disinfection and the aid of antibiotic resistant micro organism, in addition to the influence of complicated oxidation methods on wastewater microbiome and chemical contaminants. It additionally offers membrane bioreactors, relocating mattress bioreactors, gentle and sunlight pushed applied sciences, ozonation and immobilised heterogeneous photocatalysis and offers an review of the possibility of developed wetlands built-in with complicated oxidation applied sciences to provide wastewater secure for reuse. moreover, the quantity discusses water reuse concerns and criteria, the prestige of membrane bioreactors functions, and the remedy of opposite osmosis focus for greater water restoration in the course of wastewater remedy. eventually, it provides contemporary advancements in potable water reuse and addresses numerous very important concerns during this framework, just like the right safeguard of public health and wellbeing, reliability and tracking. This quantity is of curiosity to specialists, scientists and practitioners from numerous fields of study, together with analytical and environmental chemistry, toxicology and environmental and sanitary engineering, in addition to therapy plant operators and policymakers.
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Additional info for Advanced Treatment Technologies for Urban Wastewater Reuse (The Handbook of Environmental Chemistry)
Ozone Sci Eng 28(6): 353–414 64. De la Cruz N, Esquius L, Grandjean D, Magnet A, Tungler A, de Alencastro LF, Pulgarı´n C (2013) Degradation of emergent contaminants by UV, UV/H2O2 and neutral photo-Fenton at pilot scale in a domestic wastewater treatment plant. Water Res 47(15):5836–5845. doi:10. 005 65. Kim I, Yamashita N, Tanaka H (2009) Performance of UV and UV/H2O2 processes for the removal of pharmaceuticals detected in secondary effluent of a sewage treatment plant in Japan. J Hazard Mater 166(2–3):1134–1140.
De la Cruz et al.  reported very high removals for 22 selected microcontaminants (15 PhACs, 2 X-ray contrast media, 1 corrosion inhibitor, and 4 biocides/pesticides) in an effluent from a municipal WWTP using a UV/H2O2 pilot-scale process (cylindrical reactor chamber of 37 L equipped with five lamps of 150W each emitting at 254 nm). They carried out experiments at different flow rates and H2O2 concentrations and concluded that a concentration of 50 mg H2O2/L and a residence time of 10s provided the most economical setting and the best microcontaminant elimination (global degradation >88%).
8 mg/L, respectively. They found that only few PhACs (especially ketoprofen, diclofenac, and antipyrine) were significantly removed by UV radiation alone. The removal efficiencies of macrolide antibiotics such as clarithromycin, erythromycin, and azithromycin resulted very low even by the introduction of UV doses 20 times higher than common disinfection doses and contact times of 15 min. Good removal of microcontaminants cannot be expected by the UV processes alone and let alone at the radiation doses applied for disinfection of treated water in WWTPs (40–140 mJ/cm2).