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| 1 | Research progress of disinfection and disinfection by-products in China显示文摘Disinfection is an indispensable water treatment process for killing harmful pathogens and protecting human health. However, the disinfection has caused significant public concern due to the formation of toxic disinfection by-products(DBPs). Lots of studies on disinfection and DBPs have been performed in the world since 1974. Although related studies in China started in1980 s, a great progress has been achieved during the last three decades. Therefore, this review summarized the main achievements on disinfection and DPBs studies in China, which included:(1) the occurrence of DBPs in water of China,(2) the identification and detection methods of DBPs,(3) the formation mechanisms of DBPs during disinfection process,(4) the toxicological effects and epidemiological surveys of DBPs,(5) the control and management countermeasures of DBPs in water disinfection, and(6) the challenges and chances of DBPs studies in future. It is expected that this review would provide useful information and reference for optimizing disinfection process, reducing DBPs formation and protecting human health. | Xuefeng Sun Miao Chen Dongbin Wei Yuguo Du | 2019 | Journal of Environmental Sciences2019，31，7： | 18 |
| 2 | Characterization of dissolved organic matter fractions and its relationship with the disinfection by-product formation显示文摘Dissolved organic matter(DOM) has been identified as precursor for disinfection by-products(DBPs) formation during chlorination. Recently,it has been demonstrated that the characteristics of DOM influence the DBPs formation mechanism. A study was,therefore,initiated to investigate the effects of DOM fractions on DBPs formation mechanism. In the chlorination process,organic acids are dominant precursors of total thihalomethanes(TTHM) because of the νC-O and unsaturated structures. Furthermore,the TTHM formation of organic acids was affected by pH more greatly. Based on the fluorescence spectroscopy analysis,DOM fractions contained several fluorescence substances. During chlorination,humic acid-like substances were found to exhibit high chlorine reactivity and hydrophobic organics decomposed to smaller molecules faster than hydrophilic organics even at lower chlorine dosages. Unlike hydrophobic fractions,hydrophilic organics showed no toxicity following chlorination,suggesting that the toxic structures in hydrophilic organics showed high chlorine reactivity during chlorination. | ZHANG Hua QU Jiuhui LIU Huijuan WEI Dongbin | 2009 | Journal of Environmental Sciences2009，21，1： | 12 |
| 3 | A biological safety evaluation on reclaimed water reused as scenic water using a bioassay battery显示文摘An assessment method based on three toxicity tests (algae growth inhibition,daphnia immobilization and larval fish toxicity) was used to screen the biological safety of reclaimed water which was reused as sole replenishment for scenic water system in a park (SOF Park) in northern China.A total of 24 water samples were collected from six sites of water system in the SOF Park in four different seasons.The results indicated that:(1) the reclaimed water directly discharged from a reclamation treatment plant near the SOF Park as influent of park had relatively low biological safety (all samples were ranked as C or D);(2) the biological safety of reclaimed water was improved greatly with the ecological reclamation treatment processes composing of artificial wetland system and followed oxidation pond system;(3) the biological safety of reclaimed water in the main lake of SOF Park kept at a health status during different seasons (all samples were ranked as A);(4) there was some certain correlation (R 2=0.5737) between the sum of toxicity scores and dissolved organic carbon for the studied water samples.It was concluded that the assessment method was reliable to screen the safety of reclaimed water reused as scenic water,and the reclaimed water with further ecological purification processes such as artificial wetland and oxidation pond system can be safely reused as scenic water in park. | Dongbin Wei Zhuowei Tan Yuguo Du | 2011 | Journal of Environmental Sciences2011，23，10： | 9 |
| 4 | A toxicity-based method for evaluating safety of reclaimed water for environmental reuses显示文摘A large quantity of toxic chemical pollutants possibly remains in reclaimed water due to the limited removal efficiency in traditional reclamation processes. It is not enough to guarantee the safety of reclaimed water using conventional water quality criteria. An integrated assessment method based on toxicity test is necessary to vividly depict the safety of reclaimed water for reuse. A toxicity test battery consisting of lethality, genotoxicity and endocrine disrupting effect was designed to screen the multiple biological effects of residual toxic chemicals in reclaimed water. The toxicity results of reclaimed water were converted into the equivalent concentrations of the corresponding positive reference substances(EQC). Simultaneously, the predicted no-effect concentration(PNEC) of each positive reference substance was obtained by analyzing the species sensitivity distribution(SSD) of toxicity data. An index 'toxicity score' was proposed and valued as 1, 2, 3, or 4 depending on the ratio of the corresponding EQC to PNEC. For vividly ranking the safety of reclaimed water, an integrated assessment index 'toxicity rank' was proposed, which was classified into A, B, C, or D rank with A being the safest. The proposed method was proved to be effective in evaluating reclaimed water samples in case studies. | Jianying Xu Chuntao Zhao Dongbin Wei Yuguo Du | 2014 | Journal of Environmental Sciences2014，26，10： | 9 |
| 5 | Sequential use of ultraviolet light and chlorine for reclaimed water disinfection显示文摘Several disinfection processes of ultraviolet (UV),chlorine or UV followed by chlorine were investigated in municipal wastewater according to the inactivation of Escherichia coli,Shigella dysenteriae and toxicity formation.The UV inactivation of the tested pathogenic bacteria was not affected by the quality of water.It was found that the inactivated bacteria were obviously reactivated after one day in dark.Fluorescent light irradiation increased the bacteria repair.The increase of UV dosage could cause more damage to bacteria to inhibit bacteria self-repair.No photoreactivation was detected when the UV dose was up to 80 mJ/cm2 for E.coli DH5α,and 23 mJ/cm2 for S.dysenteriae.Nevertheless,sequential use of 8 mJ/cm2 of UV and low concentration of chlorine (1.5 mg/L) could effectively inhibit the photoreactivation and inactivate E.coli below the detection limits within seven days.Compared to chlorination alone,the sequential disinfection decreased the genotoxicity of treated wastewater,especially for the sample with high NH 3-N concentration. | Xiujuan Wang Xuexiang Hu Chun Hu Dongbin Wei | 2011 | Journal of Environmental Sciences2011，23，10： | 8 |
| 6 | Toxicity-based assessment of the treatment performance of wastewater treatment and reclamation processes显示文摘The reclamation and reuse of wastewater is one of the possible ways to relieve the serious fresh water resource crisis in China. Efficient reclamation treatment technologies ensure the safe reuse of reclaimed water. In order to screen out and evaluate technologies appropriate for reclamation treatment, a great deal of efforts have been brought to bear. In the present study, a toxicity-based method including a Photobacterium phosphoreum test for acute toxicity and SOS/umu test for genotoxicity, accompanied by the traditional physicochemical parameters DOC (dissolved organic carbon) and UV 254 (absorbance at 254 nm), was used to measure the treatment performance of different reclamation processes, including the anaerobic-anoxic-oxic biological process (A2O) and subsequent physical/chemical reclamation processes (ultrafiltration, ozonation, chlorination). It was found that for the secondary effluent after the A2O process, both the toxicity and physicochemical indices had greatly decreased compared with those of the influent. However, chemical reclamation processes such as ozonation and chlorination could possibly raise toxicity levels again. Fortunately, the toxicity elevation could be avoided by optimizing the ozone dosage and using activated carbon after ozonation. It was noted that by increasing the ozone dosage to 10 mg/L and employing activated carbon with more than 10 min hydraulic retention time, toxicity elevation was controlled. Furthermore, it was shown that pre-ozonation before activated carbon and chlorination played an important role in removing organic compounds and reducing the toxicity formation potential. The toxicity test could serve as a valuable tool to evaluate the performance of reclamation processes. | Dongbin Wei Zhuowei Tan Yuguo Du | 2012 | Journal of Environmental Sciences2012，24，6： | 7 |
| 7 | Photolysis of chlortetracycline in aqueous solution:Kinetics,toxicity and products显示文摘The aqueous photodegradation of the widely used antibiotic chlortetracycline(CTC) was investigated under simulated sunlight.The quantum yield of photodegradation increased from 3.3 × 10-4 to 8.5 × 10-3 within the pH range of 6.0 to 9.0.The presence of Ca2+,Fe3+,and NO3-enhanced the photodegradation of CTC,whereas Mg2+,Mn2+,and Zn2+ inhibited the degradation with the order Mn2+ > Zn2+ > Mg2+ at pH 7.3.The monovalent cations(Na+ and K+) had negligible effect on the photolysis of CTC.Fulvic acid(FA) decreased the photodegradation of CTC due to light screening effect.Hydrogen peroxide(H2O2) was formed concurrently with direct photodegradation of CTC.The generation rate of H2O2 increased from 0.027 to 0.086 μmol/(L.min) when the pH ranged from 6.0 to 9.0.The CTC solution was about three-fold more toxic to the Photobacterium phosphoreum bacteria after irradiation,suggesting that the photoproducts and H2O2 formed in the CTC solution exhibited high risk on the bacteria.By LC-ESI(+)-MS,the photoproducts of CTC were identified.The direct photodegradation of CTC was involved in hydroxylation and N-demethyl/dedismethyl processes.The main photoproducts included the iso-CTC analog containing hydroxyl groups(m/z 511.4 and 495.4),and the N-demethyl/dedismethyl products of the photoproduct m/z 495.4(m/z 481.3 and 467.4).In addition,the photochemical dechlorination of CTC led to tetracycline(m/z 445.5). | Yong Chen Hua Li Zongping Wang Tao Tao Dongbin Wei Chun Hu | 2012 | Journal of Environmental Sciences2012，24，2： | 6 |
| 8 | Predicted no-effect concentrations for mercury species and ecological risk assessment for mercury pollution in aquatic environment显示文摘Mercury(Hg) exists in different chemical forms presenting varied toxic potentials. It is necessary to explore an ecological risk assessment method for different mercury species in aquatic environment. The predicted no-effect concentrations(PNECs) for Hg(Ⅱ) and methyl mercury(Me Hg) in the aqueous phase, calculated using the species sensitivity distribution method and the assessment factor method, were 0.39 and 6.5 × 10-3μg/L, respectively. The partition theory of Hg between sediment and aqueous phases was considered, along with PNECs for the aqueous phase to conduct an ecological risk assessment for Hg in the sediment phase. Two case studies, one in China and one in the Western Black Sea, were conducted using these PNECs. The toxicity of mercury is heavily dependent on their forms,and their potential ecological risk should be respectively evaluated on the basis of mercury species. | Meng Du Dongbin Wei Zhuowei Tan Aiwu Lin Yuguo Du | 2015 | Journal of Environmental Sciences2015，27，2： | 6 |
| 9 | Acute toxicity formation potential of benzophenone-type UV filters in chlorination disinfection process显示文摘Benzophenones(BPs) are a class of widely used UV filters, which have been frequently detected within multiple environmental matrices. Disinfection is a necessary process in water treatment processes. The transformation behaviors and toxicity changes of 14 BP-type UV filters during chlorination disinfection treatment were investigated in this study. A new index, the acute toxicity formation potential, was proposed to evaluate the toxicity changes and potential risks of BP-type UV filters during chlorination treatment. It was found that 13 of 14 BP-type UV filters exhibited toxicity decreases in the chlorination disinfection process, more or less, while one showed a toxicity increase. The toxicity changes were dependent on substitution effects, such that 2,4-di-hydroxylated or 3-hydroxylated BPs exhibited significant toxicity decreases after chlorination treatment due to the ready cleavage of the aromatic ring. Importantly, the acute toxicity changes could be duplicated in an ambient water matrix. | Qi Liu Zhenbin Chen Dongbin Wei Yuguo Du | 2014 | Journal of Environmental Sciences2014，26，2： | 5 |
| 10 | The potential risk assessment for different arsenic species in the aquatic environment显示文摘The different toxicity characteristics of arsenic species result in discrepant ecological risk.The predicted no-effect concentrations(PNECs) 43.65, 250.18, and 2.00 × 103μg/L were calculated for As(III), As(V), and dimethylarsinic acid in aqueous phase, respectively. With these PNECs, the ecological risk from arsenic species in Pearl River Delta in China and Kwabrafo stream in Ghana was evaluated. It was found that the risk from As(III) and As(V)in the samples from Pearl River Delta was low, while much high in Kwabrafo stream. This study implies that ecological risk of arsenic should be evaluated basing on its species. | Meng Du Dongbin Wei Zhuowei Tan Aiwu Lin Yuguo Du | 2015 | Journal of Environmental Sciences2015，27，1： | 4 |
| 11 | Acute toxicity evaluation for quinolone antibiotics and their chlorination disinfection processes显示文摘Acute toxicity of 21 quinolone antibiotics was monitored using photobacterium Vibrio fischeri assay.The minimum IC20(inhibitory concentration for 20%luminescence elimination)was obtained at the least 18.86μmol/L for the tested quinolones.A quantitative structure–activity relationship model was established to investigate the possible mechanism for the acute toxicity.The critical physicochemical descriptors,describingσandπatom electronegativity,implied that the electron transfer might occur between the quinolones and photobacterium V.fischeri.Although the quinolones exhibited limited acute toxicity to photobacterium,toxicity elevation was detected after their chlorination.Hence,chlorination disinfection treatment of quinolone-containing water should be of concerns. | Min Li Dongbin Wei Yuguo Du | 2014 | Journal of Environmental Sciences2014，26，9： | 4 |
| 12 | Formation pathways of brominated products from benzophenone-4 chlorination in the presence of bromide ions显示文摘The brominated products,formed in chlorination treatment of benzophenone-4 in the presence of bromide ions,were identified,and the formation pathways were proposed.Under disinfection conditions,benzophenone-4 would undertake electrophilic substitution generating mono-or di-halogenated products,which would be oxidized to esters and further hydrolyzed to phenol derivatives.The generated catechol intermediate would be transformed into furan-like heterocyclic product.The product species were p H-dependent,while benzophenone-4 elimination was chlorine dose-dependent.When the chlorination treatment was performed on ambient water spiked with benzophenone-4 and bromide ions,most of brominated byproducts could be detected,and the acute toxicity significantly increased as well. | Ming Xiao Dongbin Wei Liping Li Qi Liu Huimin Zhao Yuguo Du | 2014 | Journal of Environmental Sciences2014，26，12： | 3 |
| 13 | A synthetical methodology for identifying pr ior ity pollutants in reclaimed water based on meta-analysis显示文摘Wastewater reclamation and reuse is an increasing global project,while the reclamation treatment on wastewater does not completely remove all pollutants in water.The residual pollutants in reclaimed water would cause potential risk on human health and ecosystem safety during the long-term use.It is impossible to analyze and control all pollutants one by one in practice,therefore,identification and control of priority pollutants will be efficient strategy to ensure the safe use of reclaimed water.An integrated three-step methodology for identifying priority pollutants in reclaimed water was proposed in this study.First,a comprehensive literature survey on the occurrence of pollutants in reclaimed water was conducted,and a dataset D PR for pollutants occurrence in reclaimed water was established,containing 1,113 pollutants.Second,611 chemicals that had been recommended as hazardous pollutants for various water bodies in previous literatures were summarized,and a dataset D HP for hazardous pollutants in water was obtained.Third,meta-analysis on these two datasets(D PR and D HP)was performed,a new dataset D HPR for hazardous pollutants in reclaimed water was established,including 265 candidates.Finally,59 substances out of dataset D HPR were identified as priority pollutants for reclaimed water based on their recommendation frequency.It is expected that this synthetical methodology will provide powerful support for scientific evaluating and managing water pollution and ensuring safe use of reclaimed water. | Feipeng Wang Dongbin Wei Miao Chen Shuang Peng Qiaorong Guo Xinyi Zhang Jun Liu Yuguo Du | 2022 | Journal of Environmental Sciences2022，34，2： | 2 |
| 14 | Acute toxicity variation of hydroxyl benzophenone UV filters during photoinduction–chlorination disinfection processes显示文摘Benzophenones(BPs), a group of widely used UV filters, exert multiple, significant toxicity effects. The 11 BPs were selected as target compounds, and the photobacterium acute toxicity test and an index for acute toxicity formation potential(ATFP) were used to evaluate the toxicity variation of BPs before and after a photoinduction–chlorination disinfection process.Orthogonal experiments were performed at different pH values and chlorine dosages. The characteristics of ATFP values for 11 BPs after a photoinduction–chlorination process can be summarized as follows:(1) The ATFPs decreased as the hydroxyl group number increased in BPs molecules.(2) For those BPs with the same hydroxyl group number, the ATFPs were higher when the hydroxyl groups were located at the 3-or 4-position than those at the 2-position; the BPs with hydroxyl groups distributed on two benzene rings had higher ATFPs than those on one ring.(3) Introducing a methoxyl group and sulfonic acid group into BP molecules increased the ATFP values.(4) The ATFPs were p H-dependent, the values of which were lowest at the neutral condition and highest at the acid condition.(5) The ATFPs increased and then decreased as the chlorine dosage increased. The results can be used as a reference to scientifically evaluate the environmental fate and potential risk of BPs in photoinduction–chlorination disinfection processes. | Qi Yu | 2017 | Journal of Environmental Sciences2017，29，4： | 2 |
| 15 | Photosonochemieal degradation of phenol in water 显示文摘 | Wu Chunde Liu Xinhui Wei Dongbin | 2001 | Water Res2001，35，16： | 1 |
| 16 | Physical and Numerical Simulation for Inner Crack Healing in Metals显示文摘The research purpose on the healing of inner crack in metallic materials is to provide an effective approach for improving their properties and prolonging their lifetime. The crack healing process of 20MnMo steel with inner pre-crack was analyzed. It was found that all inner cracks could be healed in different degree. There were very fine ferrite grains in healing region. The micro-crack healing process in single crystal of BBC-Fe was simulated by the molecule dynamics method, which showed that the critical temperature of crack healing in BBC-Fe is 673K. There were micro-voids, dislocations and twins left after crack healing. | Jingtao HAN Dongbin WEI Yongjun ZHANG | 2004 | 上海交通大学学报2004，38，z2： | 1 |
| 17 | The chlorination transformation characteristics of benzophenone-4 in the presence of iodide ions显示文摘Benzophenone-type UV filters are a group of compounds widely used to protect human skin from damage of UV irradiation. Benzophenone-4(BP-4) was targeted to explore its transformation behaviors during chlorination disinfection treatment in the presence of iodide ions. With the help of ultra performance liquid phase chromatograph and high-resolution quadrupole time-of-flight mass spectrometer, totally fifteen halogenated products were identified, and five out of them were iodinated products. The transformation mechanisms of BP-4 involved electrophilic substitution generating mono-or di-halogenated products,which would be oxidized into esters and further hydrolyzed into phenolic derivatives. The desulfonation and decarboxylation were observed in chlorination system either. Obeying the transformation pathways, five iodinated products formed. The p H conditions of chlorination system determined the reaction types of transformation and corresponding species of products. The more important was that, the acute toxicity had significant increase after chlorination treatment on BP-4, especially in the presence of iodide ions. When the chlorination treatment was performed on ambient water spiked with BP-4 and iodide ions,iodinated by-products could be detected. | Fan Yang Dongbin Wei Ming Xiao Xuefeng Sun Qiaorong Guo Yi Liu Yuguo Du | 2017 | Journal of Environmental Sciences2017，29，8： | 1 |
| 18 | Photosonechemical degradation of phenol in water显示文摘 | Chunde Wu Xinhui Liu Dongbin Wei | 2001 | Water Research2001，35，16： | 1 |
| 19 | Adaptive sliding mode fuzzy control for a two - dimensional overhead crane 显示文摘 | Liu Diantong Yi Jianqiang Zhao Dongbin Wang Wei | 2005 | Meehatronies2005，15，5： | 1 |
| 20 | Photosonochemical degradation of phenol in water 显示文摘 | Chund Wu Xinhui Liu Dongbin Wei | 2001 | Water Research2001，35，16： | 1 |
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