Effect of chlorination on the characteristics of effluent organic matter and the phototransformation of sulfamethoxazole in secondary wastewater

Chemosphere ◽  
2021 ◽  
pp. 133193
Author(s):  
Wei Li ◽  
Chun Ding ◽  
Gregory Korshin ◽  
Jiping Li ◽  
Hu Cheng
Keyword(s):  
Organic Matter ◽  
Effluent Organic Matter

Impact of pretreatment on RO membrane organic fouling: composition and adhesion of tertiary wastewater effluent organic matter

2021 ◽  
Author(s):  
Nadine Siebdrath ◽  
Bertram Skibinski ◽  
Shiju Abraham ◽  
Roy Bernstein ◽  
Robert Berger ◽  
...  
Keyword(s):  
Organic Matter ◽  
Wastewater Effluent ◽  
Effluent Organic Matter ◽  
Membrane Performance ◽  
Organic Fouling ◽  
Ro Membrane

Organic fouling in RO desalination of tertiary wastewater is of major concern in the decline in membrane performance.

Membrane filtration of wastewater effluents for reuse: effluent organic matter rejection and fouling

2001 ◽  
Vol 43 (10) ◽  
pp. 225-232 ◽  
Author(s):  
C. Jarusutthirak ◽  
G. Amy
Keyword(s):  
Organic Matter ◽  
Membrane Filtration ◽  
Treated Wastewater ◽  
High Concentration ◽  
Effluent Organic Matter ◽  
Dead End ◽  
Flux Decline ◽  
Uf Membranes ◽  
Stirred Cell ◽  
Filtration Unit

The reuse of treated wastewater to augment natural drinking water supplies is receiving serious consideration. Treatment of secondary and tertiary effluent by membrane filtration was investigated by assessing nanofiltration (NF) membrane and ultrafiltration (UF) membranes in bench-scale experiments. It was found that secondary and tertiary effluent contained high concentration of effluent organic matter (EfOM), contributing EfOM-related fouling. Flux decline and EfOM rejection tests were evaluated, using a dead-end stirred cell filtration unit. Surface charge and molecular weight cut-off (MWCO) of membranes were significant factors in membrane performance including permeability and EfOM-rejection.

scholarly journals New insight into the adsorption behaviour of effluent organic matter on organic–inorganic ultrafiltration membranes: a combined QCM-D and AFM study

2018 ◽  
Vol 5 (8) ◽  
pp. 180586 ◽  
Author(s):  
Xudong Wang ◽  
Danxi Huang ◽  
Botao Cheng ◽  
Lei Wang
Keyword(s):  
Organic Matter ◽  
Vinylidene Fluoride ◽  
Adsorption Behaviour ◽  
Effluent Organic Matter ◽  
Hydrophobic Membrane ◽  
Force Microscopy ◽  
Membrane Surfaces ◽  
Initial Stage ◽  
Poly Vinylidene Fluoride ◽  
Repulsive Forces

Adsorption of organic matter on membranes plays a major role in determining the fouling behaviour of membranes. This study investigated effluent organic matter (EfOM) adsorption behaviour onto poly(vinylidene fluoride) (PVDF) membrane blended with SiO 2 nanoparticles using quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM). The QCM-D results suggested that low adsorption of EfOM and an EfOM layer with a non-rigid and open structure was formed on SiO 2 -terminated membrane surfaces. Conformational assessment showed that EfOM undergoes adsorption via two steps: (i) in the initial stage, a rapid adsorption of EfOM accumulated onto the membrane; (ii) the change in dissipation was still occurring when the adsorption frequency reached balance, and the layer tended towards a more rearranged or organized secondary structure upon adsorption onto the more hydrophilic surface. For the AFM force test, when a self-made EfOM-coated probe approached the membrane, a ‘jump-in’ was observed for the hydrophobic membrane after repulsion at a small distance, while only repulsive forces were observed for PVDF/SiO 2 membranes. This study demonstrated that the PVDF/SiO 2 membrane changed the entire filtration process, forming a ‘soft’ open conformation in the foulant layer.

Variation of effluent organic matter (EfOM) during anaerobic/anoxic/oxic (A2O) wastewater treatment processes

2020 ◽  
Vol 178 ◽  
pp. 115830 ◽  
Author(s):  
Gang Tang ◽  
Xing Zheng ◽  
Xiaolin Li ◽  
Tong Liu ◽  
Yan Wang ◽  
...  
Keyword(s):  
Organic Matter ◽  
Wastewater Treatment ◽  
Effluent Organic Matter ◽  
Treatment Processes

Characterization of wastewater effluent organic matter with different solid phase extraction sorbents

Chemosphere ◽  
2020 ◽  
Vol 257 ◽  
pp. 127235
Author(s):  
Xin Wang ◽  
Yuanyuan Ji ◽  
Quan Shi ◽  
Yahe Zhang ◽  
Chen He ◽  
...  
Keyword(s):  
Organic Matter ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Wastewater Effluent ◽  
Phase Extraction ◽  
Effluent Organic Matter
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