Acta Hydrochimica Et Hydrobiologica最新文献_第4页

Sources of mineralization and salinization of thermal groundwater of Jordan 约旦热地下水的矿化和盐渍化来源

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500613

P. Möller, S. Geyer, E. Salameh, P. Dulski

{"title":"Sources of mineralization and salinization of thermal groundwater of Jordan","authors":"P. Möller, S. Geyer, E. Salameh, P. Dulski","doi":"10.1002/AHEH.200500613","DOIUrl":"https://doi.org/10.1002/AHEH.200500613","url":null,"abstract":"According to spider patterns five different types of thermal groundwater are distinguishable in Jordan. Each spider diagram comprises groups of elements which characterise soluble minerals of the aquifer such as halite, calcite, and gypsum, and leachable fractions of trace elements such as B, Ba, Br, Y, Cs, Rb, and U. In Jordan, mineralization of groundwater is largely controlled by dissolution of halite, carbonates, gypsum, and leaching diverse K-bearing minerals. Caused by interaction with Neogene basalts, limestones are silicified and mineralogically altered. Groundwater from these aquifers significantly differs in composition from those of the unaltered limestone aquifers. The benefit of spider patterns is that they visualise (i) chemical differences in groundwater from essentially similar aquifer rock such as young, old or thermally altered limestones and (ii) chemical similarities of groundwater produced from different geological formations. In contrast to spider patterns, ionic ratios widely overlap and do not unequivocally allow grouping of groundwater. δ 34 S(sulfate) varies between -4 and +29‰. Low values prove the presence of oxidised sulfides either of igneous origin or from sedimentary rocks. The spread of δ 34 S is caused by mixing with marine sulfate. All analysed water from Paleozoic rocks is replenished from younger aquifers. Considerable transaquifer flow exists more or less all over the Jordan territory. Salinization of sandstone-bound water along the rift escarpment is caused by a Na + -K + -SO 2 4 -HCO - 3 brine, whereas the wells Al Umari 1 and Wadi Araba 5 are affected by the presence of a Ca 2+ -Cl - brine.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"55 1","pages":"86-100"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86860866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21

The seasonal occurrence of the sewage fungus Leptomitus lacteus (Roth) C. Agardh in stagnant and running waters of different water chemistry of Hesse and Thuringia, Germany 污水真菌Leptomitus lacteus (Roth) C. Agardh在德国黑森州和图林根州不同水化学的死水和流水中的季节性发生

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500606

A. Riethmüller, A. Gründel, E. Langer

引用次数: 6

Characterization of the sources of thermal spring- and well water in Jordan by rare earth element and yttrium distribution and stable isotopes of H2O 约旦温泉和井水来源的稀土元素、钇分布和水的稳定同位素特征

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500614

P. Möller, P. Dulski, E. Salameh, S. Geyer

{"title":"Characterization of the sources of thermal spring- and well water in Jordan by rare earth element and yttrium distribution and stable isotopes of H2O","authors":"P. Möller, P. Dulski, E. Salameh, S. Geyer","doi":"10.1002/AHEH.200500614","DOIUrl":"https://doi.org/10.1002/AHEH.200500614","url":null,"abstract":"Four types of thermal groundwater in Jordan were distinguished by Y and rare earth elements (REY) distribution patterns. Complementary to the stratigraphic origin of water in springs or of wells, REY patterns identify either recharge areas covered by basalt, limestones or sandstone, or interaction with basalt-limestone contact zones. This hydrochemical grouping does not always correspond with \"common geological knowledge\" of the aquifer lithology of the thermal water. Therefore, comparison of the hydrochemical signatures of REY patterns and the lithological source of water yield insight into transaquifer flow. Out of 44 analysed groundwater, 18 indicated down- and 3 upflow of water the latter due to step faults near the Rift system. During transaquifer flow REY patterns of groundwater from basalts and gypsum beds or gypsum-cemented sandstones are not changed by subsequent interaction with limestones, whereas in groundwater originating from dissolution of chalk and limestones REY patterns are adjusted to those typical for gypsum-bearing sediments. Cross plots of δ 18 O vs. δ 2 H reveal essentially two trends. The main trend of water from limestone aquifers define a mixing line of past to recent meteoric water with negligible contributions of Pleistocene water. Some water from Eocene aquifers plot on the local Mediterranean meteoric water line, others plot together with water from sandstone aquifers at enhanced δ 18 O values due to hydrothermal overprinting.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"36 1","pages":"101-116"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90495991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 28

Matrix effects on the photocatalytical degradation of dichloroacetic acid and atrazine in water 基质对水中二氯乙酸和阿特拉津光催化降解的影响

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500618

Markus Ziegmann, Tusnelda E. Doll, F. Frimmel

{"title":"Matrix effects on the photocatalytical degradation of dichloroacetic acid and atrazine in water","authors":"Markus Ziegmann, Tusnelda E. Doll, F. Frimmel","doi":"10.1002/AHEH.200500618","DOIUrl":"https://doi.org/10.1002/AHEH.200500618","url":null,"abstract":"The effect of different organic and inorganic aqueous matrices on the photocatalytical degradation of dissolved atrazine and dichloroacetic acid (DCA) with immobilized TiO 2 was investigated. Two series of experiments were carried out at pH values around 7.1 for the degradation of atrazine and around 5.3 for the degradation of DCA. It is shown that the effects of the water constituents are completely different for the various substances and pH ranges. In pure deionized water 95% of the initial amount p = 1 mg/L of atrazine were degraded within 24 hours. Tap water as matrix led to a distinct lower degradation rate (factor 3). The single additives chloride, sulfate, phosphate, carbonate and DOC showed no decrease in the degradation rate. Especially in the case of phosphate and carbonate there was even a significant promoting effect. DEDIA, the doubly desalkylated and not dechlorinated product, occurred in higher concentrations than in the experiment without additives. In pure deionized water ρ 0 (DCA) = 1 mg/L was completely degraded within 330 min. By addition of any tested substance, organic or inorganic, the degradation rate of DCA, which is strongly dependent on the adsorption on the TiO 2 surface, decreased clearly. In the case of tap water the degradation rate decreased by a factor of 7.5. From the checked inorganic ions phosphate showed the strongest effect followed by sulfate, chloride and carbonate. Added DOC also had a significant influence on the degradation rate.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"6 1","pages":"146-154"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88305248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 21

Nutrient accumulation and nutrient retention in coastal waters – 30 years investigation in the Darss‐Zingst Bodden chain 沿海水域的营养积累和营养保留——Darss - Zingst Bodden链30年的调查

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500616

U. Selig, H. Baudler, Mathias Krech, Günther Nausch

{"title":"Nutrient accumulation and nutrient retention in coastal waters – 30 years investigation in the Darss‐Zingst Bodden chain","authors":"U. Selig, H. Baudler, Mathias Krech, Günther Nausch","doi":"10.1002/AHEH.200500616","DOIUrl":"https://doi.org/10.1002/AHEH.200500616","url":null,"abstract":"Coastal waters are transitional zones between limnic waters and marine systems. The anthropogenic impact on these water bodies is high and a rapid change of trophic level was observed within the last 50 years. In the Darss-Zingst Bodden chain (southern Baltic Sea - Mecklenburg-West Pomerania, Germany), the change in trophic state during the last thirty years can be reconstructed by long-term monitoring of chemical, hydrographical and biological parameters with an up to daily resolution. Until the 1980s, increased input of the anthropogenic nutrient load from the catchment area has been documented. However, with the implementation of the HELCOM recommendations the input of phosphorus and nitrogen was reduced in the 1990s. In contrast to the reduction of nutrient inputs, a decrease in nutrient concentrations and primary production could not be observed. The reasons are a high internal nutrient load and the release of nutrients out of the sediments. Numerous research projects allowed the description and quantification of these processes. Today, the internal phosphorus pool exceeds the external phosphorus load several fold. These results are the scientific basis for the development of restoration strategies of coastal waters. The development of suitable management plans is necessary for the implementation of the EU Water Framework Directive to guarantee a good ecological state by 2015. The long time acquisition of monitoring data and voluminous complementary specific research projects was enabled by the local field research conditions of the Biological Station of the University of Rostock in Zingst.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"18 1","pages":"9-19"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88396391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 17

Geochronology of anthropogenic contaminants in a dated sediment core of the Rhine River (Germany): emission sources and risk assessment 德国莱茵河沉积物岩心中人为污染物的年代学:排放源和风险评估

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500609

S. Heim, A. Hucke, J. Schwarzbauer, R. Littke, A. Mangini

{"title":"Geochronology of anthropogenic contaminants in a dated sediment core of the Rhine River (Germany): emission sources and risk assessment","authors":"S. Heim, A. Hucke, J. Schwarzbauer, R. Littke, A. Mangini","doi":"10.1002/AHEH.200500609","DOIUrl":"https://doi.org/10.1002/AHEH.200500609","url":null,"abstract":"A subaquatic sediment core was taken from the Rhine River to determine substance specific concentration profiles in correlation to time and depth. Based on these data emission histories were related for selected contaminants. Significant emission sources and emission pathways were compiled. In correlation to investigations of national and international monitoring programmes a significant reduction of environmental emissions up to a tenth of previous values were found since 1998. Some selected compounds, discharged by municipal and industrial activities, for example disinfectants (methyltriclosan), flame retardants (tris(chloropropyl)phosphate), chlorinated benzenes, anilines and naphthalenes, can be classified as significant synthetic substances in the scope of the Water Framework Directive. Because of their chemical characters, their persistence, bioaccumulation and ecotoxicity, as well as their occurrence within the sediment core, these compounds create a significant potential risk for water quality, but a reduction of these synthetic compounds to zero cannot be expected for the next future. In summary, this study provides a comprehensive reconstruction of the pollution history of anthropogenic contaminants, their fate and behaviour in the fluvial system. In addition, an estimation of the time period required for environmental measurements and monitoring programmes to improve, achieve and save a good status of the river systems are given.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"55 1","pages":"34-52"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80429252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

METEOR: a step-by-step procedure to explore effects of indicator aggregation in multi criteria decision aiding – application to water management in Berlin, Germany METEOR:一步一步探索指标聚合在多标准决策辅助中的效果——在德国柏林的水管理应用

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500619

U. Simon, R. Brüggemann, H. Behrendt, E. Shulenberger, S. Pudenz

{"title":"METEOR: a step-by-step procedure to explore effects of indicator aggregation in multi criteria decision aiding – application to water management in Berlin, Germany","authors":"U. Simon, R. Brüggemann, H. Behrendt, E. Shulenberger, S. Pudenz","doi":"10.1002/AHEH.200500619","DOIUrl":"https://doi.org/10.1002/AHEH.200500619","url":null,"abstract":"METEOR (METhod of Evaluation by ORder) is introduced as a new evaluation approach, based on partial order theory. METEOR combines transparent decision support and convenient tools for data analysis with the ability to include stakeholders' preferences in the decision process. The basic idea is a systematic step-by-step aggregation of indicators, including their weighting. We applied METEOR to evaluate the eco-hydrological effects of nine water management strategies upon the complex surface water system of Berlin and Potsdam, Germany. Altogether 14 river sections are defined, each of which is evaluated by a set of four hydro-chemical indicators. Aggregation of indicators was performed on two levels: spatially with respect to the river sections, and thematically to the four indicators themselves. The METEOR result is in good agreement with that obtained by the PROMETHEE approach. However, advantages of METEOR are (1) identification of sensitive steps of indicator aggregation, and (2) extraction of explanatory background information about advantages and disadvantages of scenarios. Both topics enhance the transparency of the evaluation process and thus support public acceptance of the decision.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"11 1","pages":"126-136"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78874709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 23

Identification of nitrate sources in groundwater by δ15Nnitrateand δ18Onitrate isotopes: a study of the shallow Pleistocene aquifer in the Jericho area, Palestine 用δ 15nit硝酸盐和δ 18nit硝酸盐同位素鉴定地下水中硝酸盐的来源:巴勒斯坦杰里科地区更新世浅层含水层的研究

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200400615

S. Khayat, S. Geyer, H. Hötzl, M. Ghanem, W. Ali

{"title":"Identification of nitrate sources in groundwater by δ15Nnitrateand δ18Onitrate isotopes: a study of the shallow Pleistocene aquifer in the Jericho area, Palestine","authors":"S. Khayat, S. Geyer, H. Hötzl, M. Ghanem, W. Ali","doi":"10.1002/AHEH.200400615","DOIUrl":"https://doi.org/10.1002/AHEH.200400615","url":null,"abstract":"This study describes the impact of septic tanks on the groundwater quality of the shallow Pleistocene aquifer in Jericho area, Westbank, Palestine. Septic tanks are widely used for storage and disposal of sewage in the populated and agricultural city of Jericho. Routine hydrochemical tests for groundwater quality performed for several years identified the problem of a gradual nitrate increase, without pinpointing its definite sources. The geological formations of the Jericho area and the shallow nature of the Pleistocene aquifer, together with the mechanism of recharge, make the groundwater in this aquifer highly susceptible to contamination, particularly along sewers. The lithology of the Samara (high hydraulic conductivity) and the Lisan formation (low conductivity but increased infiltration along fractures) promote easy seepage of agricultural and anthropogenic inputs into the groundwater. Nitrate concentrations are elevated near septic tanks and animal farms, with nitrate values exceeding 74 mg/L. δ 15 N nitrate and δ 18 O nitrate signatures suggest sewage and manure as the main sources of high nitrate concentration in the groundwater. Samples taken during the end of the dry season indicate that a slight denitrification in the aquifer.","PeriodicalId":7010,"journal":{"name":"Acta Hydrochimica Et Hydrobiologica","volume":"41 1","pages":"27-33"},"PeriodicalIF":0.0,"publicationDate":"2006-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79181221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Benthic cyanobacterial assemblages as indicators of nutrient enrichment regimes in a Spanish river 底栖蓝藻组合作为营养富集制度的指标在西班牙河流

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500611

E. Perona, P. Mateo

引用次数: 21

Conidial fungi on plants in the Biebrzański National Park Biebrzański国家公园植物上的分生孢子真菌

Acta Hydrochimica Et Hydrobiologica Pub Date : 2006-04-01 DOI: 10.1002/AHEH.200500608

M. Orłowska, I. Lengiewicz, H. Ostrowska

引用次数: 2