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| 1 | Inhibition effect of magnetic field on nitrous oxide emission from sequencing batch reactor treating domestic wastewater at low temperature显示文摘This study aims to investigate the effect of a magnetic field on nitrous oxide(N2O)emission from a sequencing batch reactor treating low-strength domestic wastewater at low temperature(10℃).After running for 124 days in parallel,results indicated that the conversion rate of N2O for a magnetic field-sequencing batch reactor(MF-SBR)decreased by34.3%compared to that of a conventional SBR(C-SBR).Meanwhile,the removal efficiencies for total nitrogen(TN)and ammonia nitrogen(NH4-N)of the MF-SBR were 22.4%and 39.5%higher than those of the C-SBR.High-throughput sequencing revealed that the abundances of AOB(Nitrosomonas),NOB(Nitrospira)and denitrifiers(Zoogloea),which could reduce N2O to N2,were promoted significantly in the MF-SBR.Enzyme activities(Nir)and gene abundances(nos Z nir S and nir K)for denitrification in the MF-SBR were also notably higher compared to C-SBR.Our study shows that application of a magnetic field is a useful approach for inhibiting the generation of N2O and promoting the nitrogen removal efficiency by affecting the microbial characteristics of sludge in an SBR treating domestic wastewater at low temperature. | Dan Xu Hongmin Ji Hongqiang Ren Jinju Geng Kan Li Ke Xu | 2020 | Journal of Environmental Sciences2020，32，1： | 7 |
| 2 | Production and emission of phosphine gas from wetland ecosystems显示文摘Phosphine is a part of an atmospheric link of phosphorus cycle on earth, which could be an important pathway for phosphorus transport in environment.Wetland ecosystems are important locations for global biogeochemical phosphorus cycle.In this study, production and emission fluxes of free phosphine from four wetlands types in southern China were observed in different seasons.The results showed that the concentration of phosphine liberated from wetlands was at pg/m3-ng/m3 level.The emission concentrations of different wetlands followed the sequence:paddy field(51.83 ± 3.06) ng/m3 marsh(46.54 ± 20.55) ng/m3 > lake(37.05 ± 22.74) ng/m3 coastal wetland(1.71 ± 0.73) ng/m3, the positive phosphine emission flux occurred in rice paddy field(6.67 ± 5.18) ng/(m2·hr) and marsh(6.23 ± 26.9) ng/(m2·hr), while a negative phosphine flux of(-13.11 ± 35.04) ng/(m2·hr) was observed on the water-air interface of Lake Taihu, suggesting that paddy field and marsh may be important sources for phosphine gas in atmosphere, while lake may be a sink of atmospheric phosphine gas during the sampling period.Atmospheric phosphine levels and emission flux from Yancheng marsh and rice paddy field varied in different seasons and vegetational zones.Both diffusion resistance in aqueous phase and temperature were dominating factors for the production and transportation of phosphine to atmosphere. | Chao Han Xueyuan Gu Jinju Geng Yuning Hong Rui Zhang Xiaorong Wang Shixiang Gao | 2010 | Journal of Environmental Sciences2010，22，9： | 5 |
| 3 | Stimulation of gaseous phosphine production from Antarctic seabird guanos and ornithogenic soils显示文摘Matrix-bound phosphine(MBP) is a general term used to indicate non-gaseous reduced phosphorus compounds that are transformed into phosphine gas upon reaction with bases or acids.Antarctic seabird guanos and ornithogenic soils were used as materials to compare the different digestion methods for transforming matrix-bound phosphine into phosphine gas.The results demonstrated that more phosphine gas in most of Antarctic environmental materials was formed of matrix-bound phosphine by caustic digestion than by acidic digestion.The comparative study on different digestion methods also revealed that the fraction of MBP converted to gaseous phosphine during the digestion depended on the temperature.The optimal digestion temperature was close to 70℃ and the optimal digestion time was about 20 min.Acidic conditions were more favorable for the release of matrix-bound phosphine compared to the neutral conditions.A proper water dilution can increase the production and emission of phosphine from the Antarctic penguin guanos. | ZHU Renbin LIU Yashu SUN Jianjun SUN Liguang GENG Jinju | 2009 | Journal of Environmental Sciences2009，21，2： | 3 |
| 4 | The determination of atmospheric phosphine in Ny-lesund显示文摘Phoshpine (PH3), a volatile and toxic gas, has been proved to commonly exist in the environment.The determination of gaseous phosphine and its emission fluxes in Ny-lesund is reported in this paper.Results showed that gaseous phosphine exist in Arctic atmosphere commonly and the concentration of phosphine ranged from 16.3-600.2 ng/m3, with the maximum concentration of phosphine in tundra areas and the minimum in surface air of ocean.The concentration of phosphine ranged from 65.79-1259 ng/m3 in colliery atmosphere at different altitudes and the maximum was found in the center of colliery.Emission fluxes of phosphine were different in various Arctic areas.Emission fluxes of phosphine from protected areas, with average concentration of 32.13±5.353 ng m–2 h–1, were higher than from other areas.And the flux of phosphine from ocean was lower. | ZHANG Rui WU Min WANG Qiang GENG JinJu YANG XiaoDi | 2010 | Chinese Science Bulletin2010，55，16： | 2 |
| 5 | Phosphorus fractions and matrix-bound phosphine in coastal surface sediments of the Southwest Yellow Sea显示文摘 | Yuning Hong Jinju Geng Song Qiao Yongzhan Zhang Lili Ding Xiaorong Wang Hongqiang Ren | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 6 | The first determination of atmospheric phosphine in Antarctica显示文摘It is generally thought that phosphine (PH3) concentrations exist at the low ng/m3 level during the night and at the pg/m3 level during daylight in the remote atmosphere of the lower troposphere. The first de- termination of gaseous PH3 on the Antarctic Millor Peninsula is reported in this paper. No PH3 was de- tected in the air samples around 10:00 when it was sunny. However, PH3 was found in all the 10:00 air samples when it was cloudy or light snow with the average of 75.3±28.8 ng/m3 (n=5). It was also found in nearly all the samples around 22:00 with the average of 87.2±70.9 ng/m3 (n=11). Atmospheric PH3 concentrations around 22:00 were generally higher than those around 10:00 in January and they were almost the same in February. In addition, PH3 concentrations around 22:00 showed a downtrend with the decreasing air temperature, suggesting that light intensity and air temperature had an important effect on atmospheric PH3 concentration. It is very surprising to have found that high concentrations of PH3 exist in the Antarctic atmosphere under the influence of strong UV-radiation and light intensity. The tentative analyses show that dry, cold and very clean atmosphere may be very suitable for the PH3 sur- vival and cause the concentration to increase and accumulate in the local atmosphere. New ap- proaches for the PH3 formation and the process of atmospheric chemistry may exist under such an extreme environment. Atmospheric PH3 may also be from the emissions of local sources. | ZHU RenBin KONG DeMing SUN LiGuang GENG JinJu WANG XiaoRong | 2007 | Chinese Science Bulletin2007，52，1： | 1 |
| 7 | Matrix-bound phosphine in Antarctic biosphere显示文摘 | Renbin Zhu Liguang Sun Deming Kong Jinju Geng Ning Wang Qiang Wang Xiaorong Wang | 2006 | Chemosphere2006，，8： | 1 |
| 8 | Determination of phosphate in a eutrophic freshwater lake by suppressed conductivity ion chromatography显示文摘 | Han Chan Geng Jinju Xie Xianehuan | 2012 | Environ Sei Techn- o12012，46，10： | 1 |
| 9 | Marc Edwards Dietmar Glindemann Temporal and spatial distributions of phosphine in-Taihu Lake显示文摘 | NIU Xiaojun GENG Jinju WANG Xiaorong | 2004 | China The Science of Total Environment2004，，323： | 1 |
| 10 | Temporal and spatial distributions of phosphine in Taihu Lake, China 显示文摘 | Niu Xiaojun Geng Jinju Wang Xiaorong | 2004 | Science of the Total Environment2004，323，： | 1 |
| 11 | Simultaneous monitoring ofphosphine and of phosphorus species in Taihu Lake sediments and phosphine emission from lake sediments 显示文摘 | Geng Jinju Niu Xiaojun Jin Xiangcan | 2005 | Biogeoehemistry2005，76，： | 1 |
| 12 | Phosphite in sedi- mentary interstitial water of Lake Taihu, a large eutrophic shallow lake in China显示文摘 | Han Chao Geng Jinju Ren Hongqiang | 2013 | Environmental Science & Technology2013，47，： | 1 |
| 13 | Combinationof struvite pyrolysate recycling with mixed - base technology for removing ammonium from fertilizer wastewater 显示文摘 | Yu Rongtai Geng Jinju Ren Hongqiang | 2012 | Bioresource Technology2012，124，： | 1 |
| 14 | The strengthening effect of a static magnetic field on activated sludge activity at low temperature 显示文摘 | Niu Chuan Geng Jinju Ren Hongqiang | 2013 | Bioresource Technology2013，150，12： | 1 |
| 15 | Simultaneous monitoring of phosphine and of phosphorus species in Taihu Lake sediments and phosphine emission from lake sediments显示文摘 | Jinju Geng Xiaojun Niu Xiangcan Jin | 2005 | Biogeochemistry2005，76，： | 1 |
| 16 | Adsorption of tetracycline onto goethite in the presence of metal cations and humic substances显示文摘 | Yanping Zhao Jinju Geng Xiaorong Wang Xueyuan Gu Shixiang Gao | 2011 | Journal of Colloid And Interface Science2011，，1： | 1 |
| 17 | Mixed culture of nitrifying bacteria and denitrifying bacteria for simultaneous nitrification and denitrification显示文摘 | Guocheng Du Jinju Geng Jian Chen Shiyi Lun | 2003 | World Journal of Microbiology and Biotechnology2003，，4： | 1 |
| 18 | Dietmar Glindemann temporal and spatial distributions of phosphine in Taihu Lake,China显示文摘 | NIU Xiaojun GENG Jinju WANG Xiaorong WANG Caihons Marc Edwards | 2004 | Science of the Total Environment2004，323，13： | 1 |
| 19 | PH_3 monitoring in Arctic and Dalian bay areas显示文摘In this paper,we use pre-column 2 times low-temperature cryo-trap enrichment—gas chromatography(GC) /nitrogen and phosphoms detector(NPD)to detect and analyze phosphine in Arctic pole area forthe first time.The results show phosphine exists in all of the samples in Arctic pole biosphere and phosphineconcentration in Arctic atmosphere is between 18.54~132.18 ng/m^3,almost the same as that inAntarctic atmosphere;phosphine concentration in Dalian bay sea surface sediments is between 116.8~554.3 ng/kg,almost the same as that reported in Jiao-zhou bay.Our research of phosphine will shednew light on the mechanisms showing how the phosphorus supplement influences the biogeochemical cycleand global warming. | 封颖 Wang Qiang Yao Ziwei Geng Jinju | 2010 | High Technology Letters2010，16，4： | 0 |
| 20 | Effects of DOM characteristics from real wastewater on the degradation of pharmaceutically active compounds by the UV/H_(2)O_(2) process显示文摘The characteristics of dissolved organic matter(DOM) can significantly affect the degradation of target compounds by the advanced oxidation processes. In this study, the effects of the different hydrophobicity/hydrophilicity fractions, molecular weight(MW) fractions,fluorescence components and molecular components of DOM extracted from municipal wastewater on the degradation of 4 pharmaceutically active compounds(Ph ACs), including carbamazepine, clofibric acid, atenolol and erythromycin by the UV/H_(2)O_(2) process were investigated. The results showed that the degradation rate constants of 4 Ph ACs decreased dramatically in the presence of DOM. The linear regressions of 4 Ph ACs degradation as a function of specific fluorescence intensity(SFI) are exhibited during the degradation of 4Ph ACs and the SFI may be used to evaluate effect of DOM on target compounds in wastewater. The hydrophobic acid(HPO-A) exhibited the strongest inhibitory effect on degradation of 4 Ph ACs during oxidation process. The small MW fractions of DOM significantly inhibited the degradation of 4 Ph ACs during oxidation process. Among three fluorescence components,hydrophobic humic-like substances may significantly inhibit the degradation of 4 Ph ACs during oxidation process. At the molecular level, the formulas may be derived from terrestrial sources. CHO compound may significantly inhibit the degradation of 4 Ph ACs during oxidation process on formula classes. The unsaturated hydrocarbons, carbohydrates and tannins compounds may significantly inhibit the effectiveness of the UV/H_(2)O_(2) process on compound classes. | Yufei Shi Jinju Geng Xiang Li Yuli Qian Hongzhou Li Liye Wang Gang Wu Qingmiao Yu Ke Xu Hongqiang Ren | 2022 | Journal of Environmental Sciences2022，34，6： | 0 |
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