Ceramic nanofiltration (NF) is a newly-developed technology for water recycling, but still limited to pilot-scale applications. Lacking efficient and eco-friendly strategies cleaning ceramic NF membrane impedes its scaling-up in industries. Forward flush, backwash acidic/caustic are not enough. In this work, novel oxalic acid-aided Fenton process was proposed synergistic relaxation/oxidation of...

The efficiency of Moringa oleifera (MO) seeds as a natural coagulant in the coagulation/flocculation process, followed by nanofiltration (NF) for the removal of cyanobacterial cells and cyanotoxins is investigated. "Synthetic water" prepared for the tests comprised de-ionized water with an inoculum of microcystis protocystis cells to obtain turbidity within the 50-450 NTU range. Methodology fol...

This article reports findings on the use of nanofiltration (NF) and reverse osmosis (RO) for secondary treatment of high-strength rendering facility wastewaters following an ultrafiltration step. These wastewaters present significant challenges to classical treatment technologies. Constant-pressure, direct-flow membrane filtration experiments were done to screen for flux and effluent water perm...

Conventional resources of phosphorous are at high risk of depletion in the near future due to current practices of its exploitation, thus new and improved exploration methodologies need to be developed to ensure phosphorous security. Today, some treatment plants recover phosphorous from municipal wastewater as struvite (MgNH₄PO₄·6H₂O). Magnesium is often added to the wastewater as MgCl₂·6H₂O to...

removing of ions from different water and waste water is one of the most important of nanofiltration potential for different aims, such as softening of potable water, remove of heavy metal ions and purification of waste water to reuse. in this study nanofiltration was used to remove of the most important ions (na+, k+, ca2+, mg2+, so42-, cl-) in sugar beet press water to reuse of this stream. e...

The role of electrostatic interactions in the separation of pharmaceuticals by a loose nanofiltration (NF) membrane was examined. While retention of the non-ionizable pharmaceutical carbamazepine was relatively independent of the solution chemistry, retention of the ionizable pharmaceuticals sulfamethoxazole and ibuprofen was strongly influenced by the solution pH and ionic strength. This findi...

Occurrence of emerging organic micropollutants in water bodies and their effects are a concern related to quality reused water. Advanced oxidation processes have demonstrated promising results address this challenge. Nonetheless, these may lead the generation more toxic by-products. The aim study was investigate coupling ozonation nanofiltration (NF) applied carbamazepine (CBZ). It consisted mo...

Constructing an interlayer between porous substrate and polyamide (PA) film is effective strategy to overcome the ubiquitous trade-off permeability selectivity, which are both important properties for nanofiltration performance. In this study, a poly(sodium 4-styrenesulfonate) (PSS) assisted interfacial synthesis method was proposed fabricate zeolitic imidazolate framework-8 (ZIF-8) PA micropor...

A mutant Aspergillus carbonarius produces partially saturated canthaxanthin (PSC; C(40)H(62)O(2)) during submerged fermentation. The pigment was extracted from dried biomass using various organic solvents and purified using nanofiltration (NF) and nonporous membranes. Particle size had a great influence; PSC extractability from fines fraction of biomass (75-105 microm) was 1.5-fold higher compa...