A partial feed nanofiltration system with stabilizing water quality for treating the sewage discharged from open recirculating cooling water systems

Zhang, Xian-Qiu; Han, Xue; Zhang, Xue; Yang, Shunqing; Du, Mao

doi:10.1016/j.seppur.2019.116045

Cited by 12 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…What's worse, the water quality stabilizers, such as Amino Trimethylene Phosphonic Acid (ATMP), Etidronic acid (HEDP) or Methyl benzotriazole (TTA), etc., contain nitrogen or phosphorus, easily making the sewage eutrophic, and then causing red tides and algal blooms. [6] As for membrane filtration methods, including reverse osmosis [7], nanofiltration [8], electrodialysis [9,10], etc., membrane, the main element of which, is expensive. In addition, the membrane is easy to be blocked by microorganisms and corrosion products in water during operation, so the membrane needs to be cleaned regularly, causing huge investment costs.…”

Section: Introductionmentioning

confidence: 99%

Ti₃C₂T_xMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

Lei

Xie³

et al. 2023

Chem. Sci.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Ti₃C₂T_xMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

Lei

Xie³

et al. 2023

Chem. Sci.

View full text Add to dashboard Cite

show abstract

“…Laboratory experiments, field investigations and mathematical models were frequently used to investigate water quality dynamics in river channels or lakes [ 10 ]. Much research showed that flow or water exchange played an important role in water quality dynamics.…”

Section: Introductionmentioning

confidence: 99%

A Simulation Experiment on Quality Dynamics of Reclaimed Water under Different Flow Exchanges

Pan

guo

2022

IJERPH

View full text Add to dashboard Cite

Reclaimed water plays an important role in maintaining urban aquatic ecosystems, especially in areas with water shortages. However, there is little information on water quality dynamics and its driving mechanism in reclaimed water bodies. The simulated experiments were conducted to investigate the effect of flow exchange on water quality dynamics and soil microbial diversity for 100% reclaimed water and mixed water (50% reclaimed and 50% stream water), and the exchange periods ranged from 2 to 40 days. The results showed that the degradation coefficients (K) of CODMn and NH3–N were 0.015 d−1 and 0.001 d−1 for the mixed water, while their K values were negative for the reclaimed water. The flow exchange had little effect on water quality dynamics for the mixed water, which may be attributed to the relatively low concentration of TP in this reclaimed water. A small or great exchange period led to a relatively high fluctuation in K during the experimental period and corresponded to a worse soil microbial diversity. These results indicate that it is not recommended to fill an isolated urban lake with 100% reclaimed water and that a suitable flow exchange period of 5~10 days could help self-purify the water quality.

show abstract

“…As advanced separation technologies, nanofiltration (NF) and reverse osmosis (RO) are widely used for deep purification of water and wastewater (Ang et al, 2015;Bruggen & Vandecasteele, 2003;Fan et al, 2020;Madsen et al, 2015;Zhang et al, 2020). Meanwhile, in a NF or RO membrane system, the pretreatment of feed water is often indispensable in order to ensure the excellent performance of membrane elements for a long time (Ayoub et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Nanofiltration Membrane Fouling and Control Caused by Residual Aluminum in Feed Water

Zhang

Han

et al. 2021

Water Air Soil Pollut

Self Cite

View full text Add to dashboard Cite

in feed eventually formed insoluble particles and fine flocs, and accumulated gradually on the membrane surface, which was a typical colloid particle fouling. ATMP can reduce the membrane fouling caused by residual aluminum to some extent, and the permeate flux ratio (J/J c ) increased from 0.83 to 0.89 when ATMP increased to the optimal dose of 6 mg⋅L −1 . However, this means can still effectively eliminate carbonate scale, even in the presence of residual aluminum. Moreover, ultrafiltration pretreatment prior to nanofiltration was very effective to control membrane fouling, and the comprehensive cost was calculated to be only 0.006 $⋅m −3 . Therefore, the combined process of coagulation-ultrafiltration as a pretreatment of nanofiltration or reverse osmosis should be an ideal way to prevent membrane fouling caused by residual aluminum.

show abstract

A partial feed nanofiltration system with stabilizing water quality for treating the sewage discharged from open recirculating cooling water systems

Cited by 12 publications

References 31 publications

Ti₃C₂T_xMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

Ti₃C₂T_xMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

A Simulation Experiment on Quality Dynamics of Reclaimed Water under Different Flow Exchanges

Nanofiltration Membrane Fouling and Control Caused by Residual Aluminum in Feed Water

Contact Info

Product

Resources

About

A partial feed nanofiltration system with stabilizing water quality for treating the sewage discharged from open recirculating cooling water systems

Cited by 12 publications

References 31 publications

Ti3C2TxMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

Ti3C2TxMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

A Simulation Experiment on Quality Dynamics of Reclaimed Water under Different Flow Exchanges

Nanofiltration Membrane Fouling and Control Caused by Residual Aluminum in Feed Water

Contact Info

Product

Resources

About

Ti₃C₂T_xMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity

Ti₃C₂T_xMXene/carbon nanofiber multifunctional electrode for electrode ionization with antifouling activity