Cleaning ceramic membranes used in treating desizing wastewater with a complex-surfactant SDBS-assisted method

Chen, Pengli; Zhong, Zhaoxiang; Liu, Fei; Xing, Weihong

doi:10.1016/j.desal.2015.01.037

Cited by 25 publications

(7 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the one hand, the addition of surfactants into the alkaline solution can reduce the surface tension, increase the solubility of organic foulants, and promote the contact of organic foulants with NaOH, thus improving the cleaning efficiency . On the other hand, NaOH may cooperate with surfactants to decompose the large organic particles into small soluble molecules and deprotonate the carboxyl groups of the organic foulants or surround the foulants with charged surfactants, thereby increasing electrostatic repulsion between foulants and membranes . Also, according to the product information, surfactants accompanied with acid cleaning agents can be used for removing inorganic soil as well as fat and mineral oil on the membrane .…”

Section: Synergistic/inhibitory Effect Among Cleaning Agentsmentioning

confidence: 99%

“…11 On the other hand, NaOH may cooperate with surfactants to decompose the large organic particles into small soluble molecules and deprotonate the carboxyl groups of the organic foulants or surround the foulants with charged surfactants, thereby increasing electrostatic repulsion between foulants and membranes. 103 Also, according to the product information, surfactants accompanied with acid cleaning agents can be used for removing inorganic soil as well as fat and mineral oil on the membrane. 101 As shown in Table S1, owing to a great synergistic effect, surfactants are important components of the commercially available cleaning agents for organic foulants removal.…”

Section: Synergistic/inhibitory Effect Amongmentioning

confidence: 99%

See 1 more Smart Citation

How Do Chemical Cleaning Agents Act on Polyamide Nanofiltration Membrane and Fouling Layer?

Huang

Luo

Chen

et al. 2020

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

Nanofiltration (NF) membranes, especially polyamide (PA) ones, are widely applied in water treatment, food processing, and resource recovery thanks to their excellent separation selectivity to small solutes and high water permeability. However, membrane fouling is inevitable during the long-term operation and limits the large-scale applications of NF technology. Chemical cleaning is considered the most effective way to avoid fouling aggravation and quickly restore membrane permeability on site. However, frequent chemical cleaning would cause reversible/ irreversible changes in the physical and chemical properties of NF membranes, resulting in membrane damage and deterioration of separation performance. Moreover, the PA NF membrane with high selectivity and a relatively low cross-linking degree is more sensitive to chemical cleaning. Many efforts, therefore, have been dedicated to clarifying the effect of chemical cleaning on the NF membrane properties and its separation performance. This review summarizes recent developments in the field and epitomizes the synergistic/inhibitory effect among the chemical cleaning agents on the fouling removal. Besides the practical guides for chemical cleaning of the PA NF membrane, many opportunities to advance the field are also pointed out.

show abstract

Section: Synergistic/inhibitory Effect Among Cleaning Agentsmentioning

confidence: 99%

Section: Synergistic/inhibitory Effect Amongmentioning

confidence: 99%

How Do Chemical Cleaning Agents Act on Polyamide Nanofiltration Membrane and Fouling Layer?

Huang

Luo

Chen

et al. 2020

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

show abstract

Section: Fouling Control Using Cip In Pilot Scale Testmentioning

confidence: 99%

“…Using the same amount of SDS for cleaning SW fouling may cause overdose due to the limited amount of hydrophobic foulants on the membrane. The overdosed SDS can even cover the membrane by binding the membrane material instead of the foulants [48,49], and therefore can reduce the permeability of the membrane. Considering the significant difference of these two types of water on turbidity (Table 1), it is challenging to build up the relationship between the biopolymer content in feed water and the performance of the UF pilot, due to the poorly controllable synergistic effect caused by the complicated matrix in the feed.…”

Section: Fouling Control Using In-line Coagulation In Pilot Scale Testsmentioning

confidence: 99%

Understanding and Control of Biopolymer Fouling in Ultrafiltration of Different Water Types

Zheng

Zietzschmann

Plume

et al. 2017

Water

View full text Add to dashboard Cite

Abstract:The present work focuses on understanding and control of biopolymer fouling in ultrafiltration of a typical surface water and nearby secondary effluent for direct and indirect portable use. Characterization results show that both kinds of biopolymers are of similar molecular weight. Longer than one year water quality monitoring results show that the C/N ratio in the secondary effluent biopolymers was relatively constant at around 4.8, while that in the surface water macromolecules fluctuated at around 6.9. Under a similar mass load, the investigated secondary effluent biopolymers lead to hydraulic resistance slightly higher than that caused by filtering surface water macromolecules; however, the correspondingly formed fouling is significantly less reversible by hydraulic backwashing. The quantity of the nitrogenous biopolymers in the secondary effluent demonstrated a strong correlation with the extent of the irreversible fouling in ultrafiltration (UF), while that from the surface water did not. In membrane fouling cleaning tests, certain detergent demonstrated high efficiency in removing the irreversible fouling after UF of the secondary effluent, but presented no effect in eliminating fouling caused by the surface water foulants. In-line coagulation using FeCl 3 prior to UF was shown as an effective fouling control method, but the effect depends heavily on the type of feed water.

show abstract

“…According to the membrane material, the membrane can be divided into two categories: organic and inorganic membrane. Compared with organic membrane, the superiority of inorganic ceramic membrane, as great thermal stability and chemical stability, good resistance to microbial erosion, easy regeneration and cleaning, high mechanical strength and long service life [4] , make it run stably for a long time in harsh conditions, which has a dominant position in the field of wastewater treatment.…”

Section: Introductionmentioning

confidence: 99%

Development and application of ceramic membrane in oily wastewater treatment

Song¹,

Qiu²,

Qiu³

et al. 2017

Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017)

View full text Add to dashboard Cite

Membrane separation technology, as an important water quality safeguards, has been widely studied and applied in water and wastewater treatment，because of its advantages ( low cost, convenient operation, no phase change and no secondary pollution). Compared with organic membrane, the inorganic ceramic membrane with more stable material properties, which can be described as high temperature resistance, acid-alkali resistance and good chemical stability, has more superiority in the complex wastewater，that have the characteristics of strong acidity, alkaline and corrosive, such as oily wastewater. This article summarizes the classification and characteristics of the ceramic membrane, and analyzes its filtration mechanism. The utilization and development of ceramic membrane and its combination process in different types of oily wastewater treatment are discussed. The future development and existing problems to be solved of ceramic membranes is proposed.

show abstract

Cleaning ceramic membranes used in treating desizing wastewater with a complex-surfactant SDBS-assisted method

Cited by 25 publications

References 59 publications

How Do Chemical Cleaning Agents Act on Polyamide Nanofiltration Membrane and Fouling Layer?

How Do Chemical Cleaning Agents Act on Polyamide Nanofiltration Membrane and Fouling Layer?

Understanding and Control of Biopolymer Fouling in Ultrafiltration of Different Water Types

Development and application of ceramic membrane in oily wastewater treatment

Contact Info

Product

Resources

About