Technologies for Water Reuse: Current Status and Future Challenges

Abstract

Water is fundamental for the quality of both ecosystems and society, and plays a key role for energy and food production, a prerequisite for the sustainable development [...]

Uv/Tio2 Photocatalysis as Post-Treatment for Anaerobic Membrane Bioreactor Effluent for Reuse

“…Under the optimal operational conditions such as 1 g/L and 40 W/ m 2 , with respect to achieving high DOM removal performance, a significant amount of HA and soluble microbial products (SMP) was removed by the UV/TiO 2 photocatalysis and a very low level of AP was observed in the permeate produced by both MBRs. This has led to a significant reduction of primary halogenated DBP precursors (Bond et al, 2011;Ma et al, 2016), which ultimately would lead to low DBP formation during the use of chlorine based pathogen control strategies for recycled water distribution (Capocelli and Piemonte, 2021). This is similar to the results reported by Gora and Andrews (2017) that TiO 2 photocatalysis can reduce the DBP formation potential of surface water with an treatment time over 30 min.…”

A comparative evaluation of reverse osmosis membrane performance when combined with anaerobic or aerobic membrane bioreactors for indirect potable reuse applications

“…Contrastingly, low membrane resistance was observed at high nitrate concentrations, which can be explained by the nitrate being repulsed by a negative membrane surface charge. Since aquatic nitrate is reported as unreactive [1], this suggested nitrate may not have a significant impact on RO fouling. Overall, a relatively higher membrane resistance was measured during the filtration of the AnMBR effluent due to a higher total feed organic content when compared to the AeMBR.…”

“…Water reuse has the potential to make a significant contribution to overcoming the challenges of water scarcity and growing demands on fresh water supply [1,2]. There are growing numbers of water reuse schemes providing non-potable supplies for agricultural irrigation and industrial cooling in many countries [3,4].…”