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学者姓名：许玉东
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Abstract ：
超滤膜处理废水往往存在低膜通量与高选择性相悖的问题,因此保持较高选择性的同时也要尽可能保证膜通量,这是当前超滤膜研究面临的主要挑战.如今许多学者通过分散填料法、化学反应填孔法、相转化法等方法制备出新型的致密超滤膜,该膜对胶体性难降解有机物具有较高截留率,且防污能力较强,使得致密超滤膜能在特种难降解废水处理利用领域展现出巨大的应用潜力.本文简要综述了上述制备致密超滤膜的三种方法及其在特种难降解废水处理中的应用技术现状和发展前景.
Keyword ：
NF浓缩液 NF浓缩液 分离 分离 制备方法 制备方法 染料废水 染料废水 致密超滤膜 致密超滤膜
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| GB/T 7714 | 阮伊煌 , 许玉东 . TUF膜在特种难降解废水处理利用中的应用 [J]. | 黑龙江环境通报 , 2025 , 38 (1) : 10-12 . |
| MLA | 阮伊煌 等. "TUF膜在特种难降解废水处理利用中的应用" . | 黑龙江环境通报 38 . 1 (2025) : 10-12 . |
| APA | 阮伊煌 , 许玉东 . TUF膜在特种难降解废水处理利用中的应用 . | 黑龙江环境通报 , 2025 , 38 (1) , 10-12 . |
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The hybrid membrane bioreactor - nanofiltration treatment process can be an effective approach for treating the landfill leachate, but the residual leachate concentrate highly loaded with the humic substance and salts remains an environmental concern. Herein, a loose nanofiltration membrane (molecular weight cut-off of 860 Da) was used to recover the humic substance, which can act as a key component of organic fertilizer, from the leachate concentrate. The loose nanofiltration membrane showed the high permeation fluxes and high transmissions (>94.7%) for most inorganic ions (i.e., Na+, K+, Cl-, and NO3-, while retaining 95.7 +/- 0.3% of the humic substance, demonstrating its great potential in effective fractionation of humic substance from inorganic salts in the leachate concentrate. The operation conditions, i.e., cross-flow rates and temperatures, had more pronounced impacts on the filtration performance of the loose nanofiltration membrane. Increasing cross-flow rates from 60 to 260 L h(-1) resulted in an improvement of ca. 7.3% in the humic substance rejection, mainly due to the reduced concentration polarization effect. In contrast, the solute rejection of the nanofiltration membrane was negatively dependent on the temperature. The rejection of humic substance decreased from 96.3 +/- 0.3% to 92.0 +/- 0.4% with increasing the temperature from 23 to 35 degrees C, likely due to the enlargement of the membrane pore size and enhancement in solute diffusivity. The humic substance was enriched from 1735 to 15,287 mg L-1, yielding a 91.2% recovery ratio with 85.7% desalination efficiency at a concentration factor of 9.6. The recovered HS had significantly stimulated the seed germination and growth of the green mungbean plants with no obvious phytotoxicity. These results demonstrate that loose nano filtration can be an effective promising technology to recover the humic substance as a valuable fertilizer component towards sustainable management of the landfill leachate concentrate. (C) 2019 Elsevier Ltd. All rights reserved.
Keyword ：
Fertilizer Fertilizer Fractionation Fractionation Humic substance recovery Humic substance recovery Landfill leachate concentrate Landfill leachate concentrate Loose nanofiltration membrane Loose nanofiltration membrane Sustainable management Sustainable management
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| GB/T 7714 | Ye, Wenyuan , Liu, Hongwei , Jiang, Mei et al. Sustainable management of landfill leachate concentrate through recovering humic substance as liquid fertilizer by loose nanofiltration [J]. | WATER RESEARCH , 2019 , 157 : 555-563 . |
| MLA | Ye, Wenyuan et al. "Sustainable management of landfill leachate concentrate through recovering humic substance as liquid fertilizer by loose nanofiltration" . | WATER RESEARCH 157 (2019) : 555-563 . |
| APA | Ye, Wenyuan , Liu, Hongwei , Jiang, Mei , Lin, Jiuyang , Ye, Kunfeng , Fang, Shengqiong et al. Sustainable management of landfill leachate concentrate through recovering humic substance as liquid fertilizer by loose nanofiltration . | WATER RESEARCH , 2019 , 157 , 555-563 . |
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The present work focused on the reduction of the calcium and sulfate ions in a membrane permeate generated from a newly developed two-stage of tight ultrafiltration (TUF) for recovering humic substance from leachate nanofiltration (NF) concentrate by a precipitation process of calcium sulfate dihydrate (gypsum). The operating parameters (temperature and pH), mechanism of precipitating behaviors, and kinetics of this process in the presence of fulvic acid (FA) and magnesium ion simultaneously were investigated. It was found that Ca2+ removal increased with increasing temperature. The decline in pH, especially towards low pH range of 2-3 around the point of zero charge of gypsum, showed a significant effect on gypsum precipitation. Adsorption of FA onto gypsum surface had an important effect on the precipitating behavior of gypsum whose mechanism might be mainly weak interactions of hydrogen bonding and hydrophobic effect at low pH, while electrostatic interactions became dominant at neutral pH. In contrast, retardation effect of Mg2+ ion on gypsum precipitation was negligible at pH 2.5. The soluble calcium removal during precipitation process corresponded with first order rate equation. The results indicated that the optimal operating parameters were found at 70 degrees C and around pH 2.5, which can be applied to the scale-up and industrial design of the precipitation process of gypsum for removing the calcium and sulfate ions in the presence of FA and magnesium ion.
Keyword ：
Calcium sulfate dihydrate Calcium sulfate dihydrate Electrostatic adsorption Electrostatic adsorption Fulvic acid Fulvic acid Hydrogen bonding Hydrogen bonding Precipitation Precipitation
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| GB/T 7714 | Xu, Yudong , Liao, Youxiang , Lin, Zhenlin et al. Precipitation of calcium sulfate dihydrate in the presence of fulvic acid and magnesium ion [J]. | CHEMICAL ENGINEERING JOURNAL , 2019 , 361 : 1078-1088 . |
| MLA | Xu, Yudong et al. "Precipitation of calcium sulfate dihydrate in the presence of fulvic acid and magnesium ion" . | CHEMICAL ENGINEERING JOURNAL 361 (2019) : 1078-1088 . |
| APA | Xu, Yudong , Liao, Youxiang , Lin, Zhenlin , Lin, Jiang , Li, Qingwei , Lin, Jiuyang et al. Precipitation of calcium sulfate dihydrate in the presence of fulvic acid and magnesium ion . | CHEMICAL ENGINEERING JOURNAL , 2019 , 361 , 1078-1088 . |
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Membrane bioreactor (MBR) and nanofiltration (NF) hybrid process has dominated in the treatment of leachate, however, NF concentrate generated from the process remains a challenge to be addressed. Given the high content of humic substances (HS) in NF concentrate, a promising approach by using a two-stage tight ultrafiltration (TUF) process for recovering HS as a water-soluble fertilizer was proposed. The effect of operating factors on membrane flux and rejection of organic matters, and the concentration and desalination performance of this TUF process were investigated on pilot scale. The pressure and temperature posed significant influence on the flux, while slight impact on the rejection of organics, and pH had negligible effect on the flux and the retention of organics. During the concentration and desalting process, the chemical oxygen demand (COD) retention increased slightly from 91% to 94%, and the rejections of divalent and monovalent ions had the respective range of 21-62% and 10-26%, except chloride ion with a negative rejection. The results demonstrated that HS dominated in organics could be effectively separated and refined from inorganic salts. The end concentrate achieved with the two-stage TUF process can meet the requirements of Chinese nation professional standards for water-soluble fertilizers containing HS. This study illustrates the feasibility of recycling HS from NF concentrate. (C) 2017 Elsevier Ltd. All rights reserved.
Keyword ：
Humic substances Humic substances Inorganic ions Inorganic ions MBR plus NF hybrid process MBR plus NF hybrid process Nanofiltration concentrate Nanofiltration concentrate Tight ultrafiltration membrane Tight ultrafiltration membrane
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| GB/T 7714 | Xu, Yudong , Chen, Chuchu , Li, Xiaodong et al. Recovery of humic substances from leachate nanofiltration concentrate by a two-stage process of tight ultrafiltration membrane [J]. | JOURNAL OF CLEANER PRODUCTION , 2017 , 161 : 84-94 . |
| MLA | Xu, Yudong et al. "Recovery of humic substances from leachate nanofiltration concentrate by a two-stage process of tight ultrafiltration membrane" . | JOURNAL OF CLEANER PRODUCTION 161 (2017) : 84-94 . |
| APA | Xu, Yudong , Chen, Chuchu , Li, Xiaodong , Lin, Jiuyang , Liao, Youxiang , Jin, Zhengxin . Recovery of humic substances from leachate nanofiltration concentrate by a two-stage process of tight ultrafiltration membrane . | JOURNAL OF CLEANER PRODUCTION , 2017 , 161 , 84-94 . |
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The influence of the human gut microbiota on the bioaccessibility and bioavailability of trace elements in vegetables has barely been studied. An in vitro digestion model combining the physiologically based extraction test (PBET) and the Simulator of Human Intestinal Microbial Ecosystem (SHIME) was applied. Results showed that the gut microbiota increased the bioaccessibility of iron (Fe) in ten test vegetables by 1.3-1.8 times, but reduced the bioaccessibility of manganese (Mn), copper (Cu), and zinc (Zn) in vegetables in the colon phase by 3.7% to 89.6%, 24.8% to 100.0%, and 59.9% to 100.0%, respectively. Using the Caco-2 cell model to simulate the human absorption process, the bioavailable contents and the bioavailability of the trace elements were further determined. Swamp cabbage was the best source of Fe and Cu; spinach and lettuce provided the highest amounts of bioavailable Mn and Zn, respectively. Referring to the daily reference intakes of trace elements, the obtained data provide a scientific basis for both reasonable ingestion of vegetables in diets and diversification of diets.
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| GB/T 7714 | Cai, Xiaolin , Chen, Xiaochen , Yin, Naiyi et al. Estimation of the bioaccessibility and bioavailability of Fe, Mn, Cu, and Zn in Chinese vegetables using the in vitro digestion/Caco-2 cell model: the influence of gut microbiota [J]. | FOOD & FUNCTION , 2017 , 8 (12) : 4592-4600 . |
| MLA | Cai, Xiaolin et al. "Estimation of the bioaccessibility and bioavailability of Fe, Mn, Cu, and Zn in Chinese vegetables using the in vitro digestion/Caco-2 cell model: the influence of gut microbiota" . | FOOD & FUNCTION 8 . 12 (2017) : 4592-4600 . |
| APA | Cai, Xiaolin , Chen, Xiaochen , Yin, Naiyi , Du, Huili , Sun, Guoxin , Wang, Lihong et al. Estimation of the bioaccessibility and bioavailability of Fe, Mn, Cu, and Zn in Chinese vegetables using the in vitro digestion/Caco-2 cell model: the influence of gut microbiota . | FOOD & FUNCTION , 2017 , 8 (12) , 4592-4600 . |
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The influence of the human gut microbiota on the bioaccessibility and bioavailability of trace elements in vegetables has barely been studied. An in vitro digestion model combining the physiologically based extraction test (PBET) and the Simulator of Human Intestinal Microbial Ecosystem (SHIME) was applied. Results showed that the gut microbiota increased the bioaccessibility of iron (Fe) in ten test vegetables by 1.3-1.8 times, but reduced the bioaccessibility of manganese (Mn), copper (Cu), and zinc (Zn) in vegetables in the colon phase by 3.7% to 89.6%, 24.8% to 100.0%, and 59.9% to 100.0%, respectively. Using the Caco-2 cell model to simulate the human absorption process, the bioavailable contents and the bioavailability of the trace elements were further determined. Swamp cabbage was the best source of Fe and Cu; spinach and lettuce provided the highest amounts of bioavailable Mn and Zn, respectively. Referring to the daily reference intakes of trace elements, the obtained data provide a scientific basis for both reasonable ingestion of vegetables in diets and diversification of diets. © The Royal Society of Chemistry.
Keyword ：
Biochemistry Biochemistry Physiological models Physiological models Trace elements Trace elements Vegetables Vegetables
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| GB/T 7714 | Cai, Xiaolin , Chen, Xiaochen , Yin, Naiyi et al. Estimation of the bioaccessibility and bioavailability of Fe, Mn, Cu, and Zn in Chinese vegetables using the in vitro digestion/Caco-2 cell model: the influence of gut microbiota [J]. | Food and Function , 2017 , 8 (12) : 4592-4600 . |
| MLA | Cai, Xiaolin et al. "Estimation of the bioaccessibility and bioavailability of Fe, Mn, Cu, and Zn in Chinese vegetables using the in vitro digestion/Caco-2 cell model: the influence of gut microbiota" . | Food and Function 8 . 12 (2017) : 4592-4600 . |
| APA | Cai, Xiaolin , Chen, Xiaochen , Yin, Naiyi , Du, Huili , Sun, Guoxin , Wang, Lihong et al. Estimation of the bioaccessibility and bioavailability of Fe, Mn, Cu, and Zn in Chinese vegetables using the in vitro digestion/Caco-2 cell model: the influence of gut microbiota . | Food and Function , 2017 , 8 (12) , 4592-4600 . |
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本发明公开了一种垃圾渗滤液MBR+NF浓缩液中高浓度Ca2+、Mg2+的去除及再利用方法，本发明利用磷酸根与MBR+NF浓缩液中的Ca2+、Mg2+发生反应，生成沉淀混合物，再进行固液分离，从而达到有效去除Ca2+、Mg2+，且沉淀后上清液中残留磷酸根含量很低的目的。沉淀物通过加硝酸溶解，可用作含腐植酸水溶性肥料的原料，实现资源利用。该方法先进、实用、经济，流程及设备简单，占地少，无二次污染。
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| GB/T 7714 | 许玉东 , 林燕评 , 李晓东 . 渗滤液MBR+NF浓缩液中高浓度Ca2+、Mg2+去除及再利用方法 : CN201510822143.5[P]. | 2015/11/24 . |
| MLA | 许玉东 et al. "渗滤液MBR+NF浓缩液中高浓度Ca2+、Mg2+去除及再利用方法" : CN201510822143.5. | 2015/11/24 . |
| APA | 许玉东 , 林燕评 , 李晓东 . 渗滤液MBR+NF浓缩液中高浓度Ca2+、Mg2+去除及再利用方法 : CN201510822143.5. | 2015/11/24 . |
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采用水培条件下种子发芽试验方法，研究了所提取的含腐植酸水溶肥料对黄瓜、甘蓝、莴苣和黑麦草4种作物的种子萌发及幼苗早期生长的影响。结果表明：未稀释或低倍数稀释的高浓度含腐植酸水溶肥料对所有4种供试作物种子的萌发均有抑制作用，其中对莴苣种子的胁迫最为明显；而稀释倍数达到20倍以上的含腐植酸水溶肥料对发芽率则不再呈抑制作用。在作物幼苗生长阶段，该含腐植酸水溶肥料对幼苗的长度和重量均表现出高浓度抑制和低浓度促进作用，其中高浓度含腐植酸水溶肥料对供试作物根长的抑制程度高于芽长，对幼苗生长的抑制作用大于发芽率；而对于不同供试作物的生长促进作用，低浓度含腐植酸水溶肥料的最佳稀释倍数则有所不同（在10～25倍之间），在最佳稀释倍数下，含腐植酸水溶肥料对幼苗生长的促进作用顺序为黄瓜最大、甘蓝和莴苣次之、黑麦草最小。
Keyword ：
发芽 发芽 幼苗生长 幼苗生长 水溶肥料 水溶肥料 渗滤液 渗滤液 种子 种子 腐植酸 腐植酸
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| GB/T 7714 | 辜龙香 , 许玉东 . 渗滤液MBR-NF浓缩液回收含腐植酸水溶肥料对不同种子发芽及幼苗生长的影响 [J]. | 农业环境科学学报 , 2015 , (3) : 424-430 . |
| MLA | 辜龙香 et al. "渗滤液MBR-NF浓缩液回收含腐植酸水溶肥料对不同种子发芽及幼苗生长的影响" . | 农业环境科学学报 3 (2015) : 424-430 . |
| APA | 辜龙香 , 许玉东 . 渗滤液MBR-NF浓缩液回收含腐植酸水溶肥料对不同种子发芽及幼苗生长的影响 . | 农业环境科学学报 , 2015 , (3) , 424-430 . |
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利用反渗透对印染生化物化尾水进行回收,考察了分离浓缩过程中,浓缩液和透过液水质随体积浓缩倍数(CF)变化情况,探讨印染生化物化处理尾水反渗透回收机制.研究结果表明,分离浓缩过程中,通量随CF的增加呈线性下降,CF为5时,降低了32.6％.透过液中COD未检出,浓缩液COD与CF呈近似线性关系.Na+ 、K+ 、Ca2+和Mg2+富集倍数随CF线性上升,但在高倍数下增大幅度反而降低;Fe、Mn和Al富集情况与主要无机阳离子相似,但程度略低.Cl-和SO42-基本富集在浓缩液中,NO3-和NO2-也得到较好的富集,但截留率略低.透过液中无机离子主要为Na+和Cl-.
Keyword ：
印染废水 印染废水 反渗透 反渗透 回收机制 回收机制 尾水 尾水
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| GB/T 7714 | 罗丹 , 许玉东 . 印染生化物化尾水反渗透回收特性 [J]. | 环境工程学报 , 2015 , 9 (11) : 5470-5476 . |
| MLA | 罗丹 et al. "印染生化物化尾水反渗透回收特性" . | 环境工程学报 9 . 11 (2015) : 5470-5476 . |
| APA | 罗丹 , 许玉东 . 印染生化物化尾水反渗透回收特性 . | 环境工程学报 , 2015 , 9 (11) , 5470-5476 . |
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The pilot-scale experiments were conducted to investigate recovery of effluent from printing and dyeing wastewater treated with biochemical and physicochemical processes by reverse osmosis (RO). Characteristics of water quality of the concentrate and the permeate with concentration factor (CF) were performed during separation and thickening process and RO recovery mechanism were also discussed. The results show that the permeate flux decreased relatively linear with the increase of CF, with a reduction flux value of 32.6% at CF=5 during the process of separation and thickening. Variation of the concentrate COD with CF showed a linear relationship, and the permeate COD was lower than the detection limit. The enrichment factors of major inorganic cations Na+, K+, Ca2+ and Mg2+ increased linearly with the increase of CF, however, their enriching extent dropped under high value of CF. Variations of enrichment state of Fe, Mn and Al with CF were similar to major inorganics, but the enrichment factors were lower to some extent. Both Cl- and SO4 2- were completely rejected in the concentrate, also NO3 - and NO2 -, just a few lower rejection rate. Na+ and Cl- dominated in inorganic ions of the permeate. © 2015, Science Press. All right reserved.
Keyword ：
Printing and dyeing wastewater; Recovery mechanism; Reverse osmosis; Tail water Printing and dyeing wastewater; Recovery mechanism; Reverse osmosis; Tail water
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| GB/T 7714 | Luo, D. , Xu, Y. . Recovery characterization of effluent from printing and dyeing wastewater treated with biochemical and physicochemical processes by reverse osmosis [J]. | Chinese Journal of Environmental Engineering , 2015 , 9 (11) : 5470-5476 . |
| MLA | Luo, D. et al. "Recovery characterization of effluent from printing and dyeing wastewater treated with biochemical and physicochemical processes by reverse osmosis" . | Chinese Journal of Environmental Engineering 9 . 11 (2015) : 5470-5476 . |
| APA | Luo, D. , Xu, Y. . Recovery characterization of effluent from printing and dyeing wastewater treated with biochemical and physicochemical processes by reverse osmosis . | Chinese Journal of Environmental Engineering , 2015 , 9 (11) , 5470-5476 . |
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