Anaerobic biodegradation and decolorization of a refractory acid dye by a forward osmosis membrane bioreactor

Abstract

In this study, the feasibility of utilizing an anaerobic osmotic membrane bioreactor (OMBR) for the treatment of a refractory acid dye, Lanaset red G.GR, is demonstrated.

Treatment of high‐strength synthetic textile wastewater through anaerobic osmotic membrane bioreactor and effect of sludge characteristics on flux

“…However, in permeate, the total COD removal was about 91% ± 4% as shown in Exhibit 5(b). It is close to the COD removal efficiency of 99% achieved while treating a medium‐strength single dye water (Li et al., 2018). It is also worth mentioning that the COD rejection by FO membrane was steadier compared with COD removal in the bioreactor.…”

“…The stable salinity level (within the range of 2.5–4.0 mS/cm) facilitated the An‐MF‐OMBR to achieve a long‐term continuous operation and a higher methane production compared with a conventional AnOMBR. Only one study is available that evaluates the removal of a single acidic dye from medium‐strength wastewater (Li et al., 2018). No study is available in the literature that evaluates the efficiency of AnOMBR for high‐strength textile wastewater treatment due to its complex nature.…”

Synthesis, Characterization and Dye Removal Behavior of Core–Shell–Shell Fe3O4/Ag/Polyoxometalates Ternary Nanocomposites

“…Nevertheless, for adsorption, the problems of adsorption saturation and sorbent consumption are insurmountable [62]. In advanced oxidation and electrolysis processes, highly toxic derivatives may be produced and the operating costs are very high [60,63,64]. Therefore, the development of efficient methods is essential for the advanced treatment of dye wastewater.…”

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

“…When seawater is used as a DS, diluted seawater can be directly discharged into the sea without being concentrated and recycled. After being concentrated, the FS can be further used to generate energy through anaerobic digestion [9]. Another form of osmosis process, pressure retarded osmosis (PRO), can convert the osmotic pressure differences between seawater and freshwater into electrical energy [10].Despite the inherent advantages and broad application prospects, large-scale commercialization of the FO process has not been adequately possible due to some obstacles such as regeneration and separation of draw solutes, concentration polarization (CP) on the feed side, reverse solute diffusion (RSD), and membrane fouling [11].…”

“…When seawater is used as a DS, diluted seawater can be directly discharged into the sea without being concentrated and recycled. After being concentrated, the FS can be further used to generate energy through anaerobic digestion [9]. Another form of osmosis process, pressure retarded osmosis (PRO), can convert the osmotic pressure differences between seawater and freshwater into electrical energy [10].…”