Xing Du

Xing Du
GuangDong University of Technology · School of Civil and Transportation Engineering

PhD

About

45
Publications
5,818
Reads
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1,105
Citations
Additional affiliations
September 2017 - April 2020
GuangDong University of Technology
Position
  • Professor (Associate)
September 2011 - August 2017
Harbin Institute of Technology
Position
  • PhD Student

Publications

Publications (45)
Article
Nanofiltration (NF) membrane promotes the rapid development of reclaimed water treatment technology. Biofouling significantly limits NF membranes’ performance in the case of wastewater treatment. The rheological characteristics of NF biofouling layer and the microfluid field on the vicinity of membrane surface determine the strategies for alleviati...
Article
A novel visible light emitting diode (LED) photocatalysis combined ultrafiltration (UF) system driven by metal-free O-doped C3N4 was established for sulfamethazine (SMZ) removal in environmental remediation. Among different O-doping ratios, 8%O-C3N4 exhibited the optimal SMZ degradation efficiency (89.36%) and the flux of 8%O-C3N4/LED/UF system cou...
Article
Advanced oxidation process (AOPs) is one of the most effective technologies for organic pollutants removal. In this study, diverse reactive species generation and enhanced sulfamethoxazole (SMX) degradation were investigated based on persulfate (PDS) activated by Fe²⁺&dithionite (DTN). When involving Fe²⁺&dithionite in PDS, SMX degradation efficien...
Article
Carbon neutrality has been received more attention and emerged in wastewater treatment processes. Due to the development of treating technologies with the rising of new-emerging pollutants, the coupled chemical processes also should remain current for the goal of carbon-neutral operation. Among of those updated strategies, several advanced oxidatio...
Article
Siderite was applied to the binary oxidant system of siderite-catalyzed hydrogen peroxide (H2O2) and enhanced with persulfate (PS). In the absence of PS, methyl orange (MO) almost could not be degraded by the siderite/ H2O2 process. However, adding PS significantly improved the capacity of MO to oxidize azo-dye. The influence of individual and inte...
Article
In this work, a two-dimensional kaolin supported Mn/Co bimetal oxides (CK-Mn) was synthesized via a simple hydrothermal and calcination process. The resulting ternary hybrid sample exhibited a superior performance for activating peroxymonosulfate (PMS) towards bisphenol A (BPA) degradation, with a pseudo-first-order rate constant of 0.252 min⁻¹, wh...
Article
Effective elimination of manganese (Mn) and ammonium (NH4⁺-N) from drinking water is still challenging. Utilizing oxidants to improve the simultaneous removals of Mn and NH4⁺-N from rapid sand filter (RSF) systems has been extensively studied. However, the prokaryotes containing in the water geochemical properties greatly affected the RSF performan...
Article
Full-text available
Industrial dyeing produces highly polluting wastewater and threatens the environment. Effective treatment of dyeing wastewater is a crucial step to prevent toxic chemicals from entering receiving waters. This study aimed to assess a modified attapulgite (ATP)-based adsorbent for dyeing wastewater purification by introducing chitosan (CTS) and titan...
Article
Drinking water treatment under rural conditions often require compactness and portability. To address this, the present study developed a pilot-scale helical tubular biological contact oxidation (BCO) reactor filled with annular porous biofilm carriers (fillers). To determine the drinking water treatment efficiency and microbial characteristics, th...
Article
Nanofiltration (NF) concentrate generated from the secondary wastewater treatment contains high concentration of ammonium nitrogen and refractory organics, thus having great environmental risks. In this study, an electro-oxidation (EO) reactor built up with a boron-doped diamond (BDD) anode is utilized to treat the NF concentrate. To reach “zero li...
Article
Clean water scarcity is a pressing global water resource issue that affects a large population. Rainwater utilization carries an enormous potential as an effective option to alleviate water crisis. In our work, a gravity-driven membrane bioreactor (GDMBR) coupled with electro-oxidation (EO) was investigated for long-term roofing rainwater treatment...
Article
Here a two-dimensional (2D) ultrathin perforated Co3O4 nanosheet is rationally designed by a wet-chemical synthesis to activate peroxymonosulfate (PMS) for efficient selective oxidation. And the physicochemical properties of catalyst were investigated by series of techniques. The Co3O4 nanosheets achieved a 98.0% degradation efficiency of bisphenol...
Article
Gravity-driven biomimetic membrane (GDBM) has been developed as a promising membrane separation technology regarding ecological water treatment. Given its catalytic function on micro-pollutant removal and fouling control, detailed mechanism for fabrication material influence, organic micro-pollutants (OMPs) degradation, and operation strategy optim...
Article
In this study, a BDD electrolytic oxidation-ceramic membrane ultrafiltration (EO-CM) system for the removals of antibiotics, organic matters and ammonia in wastewater was evaluated. Sulfamethazine (SMZ) was degraded following a pseudo first-order kinetics. The removal rate of SMZ improved with the increase of electro-oxidation time (0–60 min) and c...
Article
Rural water treatment is generally more challenging than urban water treatment. This study proposed a novel rural water treatment system effectively harnessing solar energy and gravitational hydropower. Influent was initially fed to a solar-driven electrocoagulation unit, in which UV254 level was reduced (by almost 60%) and large flocs (averaging u...
Article
A pilot-scale electrocoagulation method coupled with gravity-driven membrane bioreactor (EC-GDMBR) was conducted to roof rainwater cleaner production for long-term (120 days) operation. The utilization efficiency of roofing rainwater energy, water production efficiency, and water purification mechanism were systematically investigated. The permeate...
Article
Achieving adequate manganese removal during water treatment is a challenging process. This study aimed to assess the effectiveness of gravity driven ceramic membrane (GDCM) filtration in the elimination of manganese from surface water. The impact of membrane pre-modification with birnessite and molecular weight cut-off on long-term water treatment...
Article
Concurrent presence of algae and manganese (Mn) in water poses a significant challenge for water treatment. This study compared the treatment efficiency of Mn-containing and algae-laden water using either permanganate pre-oxidation (KMnO4) or persulfate/iron(II) (PMS/Fe2+) enhanced coagulation as pretreatment for ceramic membrane ultrafiltration. T...
Article
Water laden with dissolved manganese ions presents a challenge to water treatment processes and drinking water quality. To address manganese removal, a gravity driven ceramic membrane filtration system was developed; the membrane was pre-modified by depositing freshly formed birnessite type manganese oxide (MnOx) attached on powdered activated carb...
Article
Full-text available
In this study, a boron-doped diamond (BDD) electro-oxidation technology coupled with nanofiltration membrane (EO-NF) technology was investigated for its effectiveness in removing antibiotics (i.e., sulfamethazine:SMZ) and mitigating biofouling during secondary wastewater treatment. The result showed that EO obtained an effective SMZ removal, owing...
Article
The simultaneous occurrence of iron, manganese and antibiotics within groundwater enhances the difficulties for drinking water treatment. In this study, the peroxymonosulfate (PMS)-assisted in-situ oxidation/coagulation(O/C) coupled with ceramic membrane process was employed to remove the iron (Fe²⁺: 2.0-4.2 mg/L), manganese (Mn²⁺: 0.99-4.12 mg/L),...
Article
Full-text available
To investigate how the organic fouling layers on nanofiltration (NF) membrane surface and the strong matrix effect (particularly by Ca2+) influence the rejection of trace organic compounds (TOrCs), filtration experiments with two TOrCs, bisphenol A (BPA) and sulfamethazine (SMT), were carried out with virgin and organic-fouled NF membrane. Organic...
Article
This work is a contribution to understand the interaction of biological and chemical auto-catalytic oxidation processes for the removal of manganese (Mn) (0–1.8 mg/L) using the ripened sand filter. Here, penicillin, sodium chloride (NaCl), autoclave sterilization and sodium hypochlorite (NaClO) were chosen as the four inactivation methods to distin...
Article
Rainwater harvesting (RWH) coupled with gravity-driven membrane (GDM) filtration was used to simultaneously treat rainwater and recover energy. A pilot GDM could obtain a relatively stable level of permeate flux (~4.0 L/(m2·h)) under a set water head (ΔH=0.4 m) over 140 days of operation. An increased water head (ΔH=0.6 m) did not achieve a sharp i...
Article
An integrated peroxymonosulfate (PMS)-assisted electrolytic oxidation/coagulation (EO/EC) and ceramic ultrafiltration (UF) process was applied for antibiotic removal in surface water. Stable permeation was achieved in the case of surface water containing sulfamethazine (SMZ) (0–800 μg/L), and the optimum conditions appeared to be an electrical curr...
Article
This study considers peroxymonosulfate (PMS)-assisted iron electrolysis for electro-oxidation/coagulation (EO/EC) pretreatment combined with a ceramic ultrafiltration (UF) membrane for simultaneous manganese (0-1.0 mg/L) and phosphorus (0-0.8 mg/L) removal from surface water. The results indicated that the optimum EO/EC operation conditions appear...
Article
This study utilized physical adsorption and filtration of carbon nanotubes (CNTs) and laccases to fabricate biomimetic dynamic membrane (BDM) for the advanced treatment of dye wastewater. In BDM, the adsorption, enzymatic degradation and membrane separation demonstrated a synergism effect on pollutant removal. At first, the fabrication methods of B...
Article
Shear stress generated by cross flow velocity (CFV) was employed to investigate the migration of particles with varied sizes ranging from 0.5 µm to 100 µm in a laboratory flat sheet cell, which was implemented to investigate particle size segregation during the formation of combined membrane fouling. Computational fluid dynamic simulations of shear...
Article
Empirical and numerical techniques were used to study particle deposition on flat sheet microfiltration (MF) membranes during surface water treatment under single-phase flow (no aeration) and two phase flow (aeration with bubbly or slug flow) in the presence and absence of metal coagulants and polymers. Pre-coagulation of the particles reduced the...
Article
Conventional drinking water treatment processes have faced several obstacles that are severely affected by water pollution and shortage, which makes it difficult to produce potable water effectively. Low-pressure membrane filtration, which includes ultrafiltration (UF) and microfiltration (MF), is one of the most promising treatment technologies fo...
Article
To examine the effects of different coagulants on membrane fouling in the coagulation/aid-coagulation/ultrafiltration process for high turbidity surface water purification, Malvern laser particle size analyzer and micro-scale ultrafiltration unit were used to investigate membrane fouling caused by the flocs formed by coagulants (i.e. aluminium poly...
Article
In this study, the effect of bubbly flow on the performance of water flux of forward osmosis (FO) membranes was investigated, in terms of membrane biofouling causing by treating wastewater under a lower flow rate operation (cross flow velocity = 0.04 m/s) in feed channel. It was found that water flux exhibited a better performance through bubbly fl...
Article
Pressure-driven membrane technology has gained increasing popularity in municipal/domestic and industrial wastewater treatment, desalination, and water reclamation. Careful manipulation of surface shear stress, which plays a vital role in membrane fouling control from a purely hydrodynamic perspective, can minimise concentration polarisation of sol...
Article
Full-text available
In this study, the cake buildup of TiO2 fine particles in the presence of humid acid (HA) and cake layer controlling during ultrafiltration (UF) were investigated. Specifically, we measured the cake thickness using fluid dynamic gauging (FDG) method under various solution conditions, including TiO2 concentration (0.1–0.5 g/L), HA concentration (0–5...
Article
This paper focused on the effects of mesoporous adsorbent resin (MAR) and powdered activated carbon (PAC) pretreatments on ultraffltration (UF) membrane fouling caused by natural organic matter (NOM). Three model foulants, humic acid (HA), bovine serum albumin (BSA) and sodium alginate (SA), were adopted to represent different NOM fractions in natu...
Article
This paper focused on the control of ultrafiltration (UF) membrane fouling caused by extracellular organic matter (EOM) extracted from Microcystis aeruginosa through pretreatment with mesoporous adsorbent resin (MAR) and powdered activated carbon (PAC). The influence of MAR and PAC pretreatments on characteristics of EOM was investigated using mole...

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Projects

Project (1)
Project
Membrane fouling, including organic fouling, inorganic fouling and combined fouling , was focused on in this project. Some approaches was applied to migrate the membrane fouling from the perspective of hydrodynamic conditions.