Change search
Link to record
Permanent link

Direct link
BETA
Norrström, Ann-CatrineORCID iD iconorcid.org/0000-0001-8491-4675
Alternative names
Publications (10 of 27) Show all publications
Bakyayita, G. K., Norrström, A.-C. & Kulabako, R. N. (2019). Assessment of Levels, Speciation, and Toxicity of Trace Metal Contaminants in Selected Shallow Groundwater Sources, Surface Runoff, Wastewater, and Surface Water from Designated Streams in Lake Victoria Basin, Uganda. Journal of Environmental and Public health, Article ID 6734017.
Open this publication in new window or tab >>Assessment of Levels, Speciation, and Toxicity of Trace Metal Contaminants in Selected Shallow Groundwater Sources, Surface Runoff, Wastewater, and Surface Water from Designated Streams in Lake Victoria Basin, Uganda
2019 (English)In: Journal of Environmental and Public health, ISSN 1687-9805, E-ISSN 1687-9813, article id 6734017Article in journal (Refereed) Published
Abstract [en]

The levels, speciation of elements, and toxicity of selected trace metals as well as other parameters in selected surface water, shallow groundwater sources, landfill leachate, and associated surface runoff in the Lake Victoria basin, Uganda, were studied. The WHO guidelines, Ugandan standards, Canadian guidelines and Swedish EPA were used for assessment. The shallow groundwater was acidic with pH values below 6.5. The pH, dissolved organic carbon, flouride, and sulphate levels for all springs were below the guideline values although 52.8% was contaminated with nitrates while 39% was contaminated with chloride ions. Some surface water samples had levels of major elements, such as iron, chromium, aluminium, and manganese, above the guideline values. Speciation studies showed that 74% of the metal ions was bound to dissolved organic matter in surface water, whereas in landfill leachates, the dominant ionic species was metal hydroxides or fulvic acid bound. Risk analysis based on the Swedish EPA showed varied risks of negative effects in 30%-76% of the sample sites ranging from high to increased risk in surface water, whereas the results from modelling sorption data using the Bio-met tool showed potential risk to toxicity effects of Cu2+, Ni2+, Zn2+, and Pb2+ in 15.3%-30.8% surface water samples and 8.3%-62.5% groundwater samples.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2019
National Category
Geophysical Engineering
Identifiers
urn:nbn:se:kth:diva-254129 (URN)10.1155/2019/6734017 (DOI)000470176900001 ()2-s2.0-85066991774 (Scopus ID)
Note

QC 20190620

Available from: 2019-06-20 Created: 2019-06-20 Last updated: 2019-09-23Bibliographically approved
Bakyayita, G. K., Norrström, A.-C. & Kulabako, R. N. (2019). Assessment of levels, speciation and toxicity of trace metal contaminants in selected shallow groundwater sources, surface runoff, wastewater and surface water from designated streams in Lake Victoria Basin, Uganda. Hindawi Journal of Environmental and Public Health, 1-18, Article ID 6734017.
Open this publication in new window or tab >>Assessment of levels, speciation and toxicity of trace metal contaminants in selected shallow groundwater sources, surface runoff, wastewater and surface water from designated streams in Lake Victoria Basin, Uganda
2019 (English)In: Hindawi Journal of Environmental and Public Health, ISSN 1687-9813, p. 1-18, article id 6734017Article in journal (Refereed) Published
Abstract [en]

The levels, speciation of elements and toxicity of selected trace metals as well as other parameters in selected surface water, shallow groundwater sources, landfill leachate and associated surface runoff in the Lake Victoria basin, Uganda were studied. The WHO guidelines, Ugandan standards, Canadian guidelines and Swedish EPA were used for assessment. The shallow groundwater was acidic with pH values below 6.5. The pH, dissolved organic carbon, flouride and suphate levels for all springs were below the guideline values although 52.8% were contaminated with nitrates while 39% were contaminated with chloride ions. The water samples with had levels of major elements; iron, chromium, aluminium and manganese above the guideline values. Speciation studies showed that 74% of the metal ions were bound to dissolved organic matter in surface water whereas in landfill leachates the dorminant ionic species were metal hydroxides or fluvic acid bound. Risk analysis basing on the Swedish EPA showed that varied risks of negative effects in 30% – 76% of the sample sites ranging from high to increased risk in surface water whereas the results from Bio-met tool showed potential risk to toxicity effects of Cu2+, Ni2+, Zn2+and Pb2+ in 15.3% - 30.8% surface water samples and 8.3% - 62.5% groundwater samples.

Place, publisher, year, edition, pages
Adam House, Third Floor 1 Fitzroy Square London W1T 5HF UK: , 2019
Keywords
Guideline values, Lake Victoria basin, speciation, trace metals, toxicity effects
National Category
Engineering and Technology
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-259916 (URN)10.1155/2019/6734017 (DOI)2-s2.0-85066991774 (Scopus ID)
Note

QC 20190926

Available from: 2019-09-23 Created: 2019-09-23 Last updated: 2019-09-26Bibliographically approved
Bakyayita, G. K., Norrström, A.-C. & Kulabako, R. N. (2015). Competitive and Noncompetitive Batch Sorption Studies of Aqueous Cd(II) and Pb(II) Uptake onto Coffea canephora Husks, Cyperus papyrus Stems, and Musa spp. Peels. Journal of Chemistry, Article ID 696098.
Open this publication in new window or tab >>Competitive and Noncompetitive Batch Sorption Studies of Aqueous Cd(II) and Pb(II) Uptake onto Coffea canephora Husks, Cyperus papyrus Stems, and Musa spp. Peels
2015 (English)In: Journal of Chemistry, ISSN 2090-9063, E-ISSN 2090-9071, article id 696098Article in journal (Refereed) Published
Abstract [en]

Coffea canephora, Cyperus papyrus, and Musa spp. were studied for competitive and noncompetitive removal of aqueous Cd2+ and Pb2+. The optimal conditions were pH 4.5 and agitation time 3.0 hours. Biomass constituent ions showed no interference effects whereas cation exchange capacity values corresponded to the sorption efficiencies. XRD spectroscopy revealed surface oxygen and nitrogen groups that provide binding sites for metal ions. The maximum sorption efficiency ranges for metal ions in noncompetitive media were 95.2-98.7% for C. canephora, 42.0-91.3% for C. papyrus, and 79.9-92.2% for Musa spp. and in competitive sorption 90.8-98.0% for C. canephora, 19.5-90.4% for C. papyrus, and 56.4-89.3% for Musa spp. The Pb2+ ions uptake was superior to that of Cd2+ ions in competitive and noncompetitive media. In competitive sorption synergistic effects were higher for Cd2+ than Pb2+ ions. The pseudo-second-order kinetic model fitted experimental data with 0.917 <= R-2 >= 1.000 for Pb2+ ions and 0.711 <= R-2 >= 0.999 for Cd2+ ions. The Langmuir model fitted noncompetitive sorption data with 0.769 <= R-2 >= 0.999; moreover the Freundlich model fitted competitive sorption data with 0.867 <= R-2 >= 0.989. Noncompetitive sorption was monolayer chemisorption whereas competitive sorption exhibited heterogeneous sorption mechanisms.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2015
Keywords
Metal-Ions, Activated Carbon, Biosorption, Adsorption, Removal, Waste, Bark, Cd2+
National Category
Physical Chemistry
Identifiers
urn:nbn:se:kth:diva-176995 (URN)10.1155/2015/696098 (DOI)000363184100001 ()2-s2.0-84945328474 (Scopus ID)
Funder
Sida - Swedish International Development Cooperation Agency
Note

QC 20151116

Available from: 2015-11-16 Created: 2015-11-13 Last updated: 2019-09-23Bibliographically approved
Bakyayita Kizito, G., Norrström, A.-C., Nalubega, M. & Robinah, K. (2014). Kinetic studies of Cd (II) and Pb (II) ions biosorption from aqueous media using untreated and chemically treated biosorbents. Water Science and Technology: Water Supply, 69(11), 2230-2236
Open this publication in new window or tab >>Kinetic studies of Cd (II) and Pb (II) ions biosorption from aqueous media using untreated and chemically treated biosorbents
2014 (English)In: Water Science and Technology: Water Supply, ISSN 1606-9749, E-ISSN 1607-0798, Vol. 69, no 11, p. 2230-2236Article in journal (Refereed) Published
Abstract [en]

Untreated and chemically treated Albizia coriaria, Erythrina abyssinica and Musa spp were studied in batch for uptake of Cd2+ and Pb2+ ions at pH 2.0–9.0 and agitation time; 30–390 min. Optimum biosorption conditions were; pH 4 for Pb2+ ions and pH 5 for Cd2+ ions, contact time was 3.5 hours at 24 ± 1 °C for 10 mg/L biosorbent dosage and initial metal ions concentration of 20 mg/L. Chemical treatment had a 10–17% biosorption efficiency enhancement for Cd2+ ions and a 1.6–2.3% reduction effect for Pb2+ ions. The sorption capacities for Cd2+ and Pb2+ ions for treated biosorbents were between 1.760–1.738 mg g−1 compared to 1.415–1.539 mg g−1 for untreated materials. The pseudo second order model suitably fitted the Cd2+ and Pb2+ ions biosorption data with regression coefficients (R2) between 0.9784–0.9999. Fitting of the Ho model to the experimental data showed that the biosorption mechanism for both metal ions studied was mainly a chemisorption process. Therefore, treated A. coriaria, E. abyssinica and Musa spp were potential biosorbents for remediation of Cd2+ ions and the untreated materials suitable for removing Pb2+ ions from contaminated aqueous media.

Keywords
biosorbents, cadmium, chemical treatment, chemisorption, kinetics, lead
National Category
Water Engineering
Research subject
Land and Water Resources Engineering
Identifiers
urn:nbn:se:kth:diva-144998 (URN)10.2166/wst.2014.147 (DOI)000338991400007 ()2-s2.0-84902338542 (Scopus ID)
Note

QC 20150623

Available from: 2014-05-05 Created: 2014-05-05 Last updated: 2019-09-23Bibliographically approved
Daneshvar, E., Sohrabi, M. S., Kousha, M., Bhatnagar, A., Aliakbarian, B., Converti, A. & Norrstrom, A.-C. (2014). Shrimp shell as an efficient bioadsorbent for Acid Blue 25 dye removal from aqueous solution. Journal of the Taiwan Institute of Chemical Engineers / Elsevier, 45(6), 2926-2934
Open this publication in new window or tab >>Shrimp shell as an efficient bioadsorbent for Acid Blue 25 dye removal from aqueous solution
Show others...
2014 (English)In: Journal of the Taiwan Institute of Chemical Engineers / Elsevier, ISSN 1876-1070, E-ISSN 1876-1089, Vol. 45, no 6, p. 2926-2934Article in journal (Refereed) Published
Abstract [en]

This study focused on kinetics, equilibrium and thermodynamics of Acid Blue 25 (AB25) dye biosorption from aqueous solution using the shell of Penaeus indicus shrimp as a biosorbent. Optimum sorption conditions were identified by varying solution pH, biomass dosage, initial dye concentration, contact time, salinity and ionic strength. Equilibrium data were well fitted by the Temkin, Freundlich and Langmuir isotherm models, while the pseudo-second order model best described kinetics. Thermodynamic data showed that AB25 dye biosorption onto shrimp shell was a feasible, spontaneous and exothermic one. The biosorption capacity increased with decreasing the sorbent particle size and with the addition of salts (NaCl, MgSO4, KNO3 and KH2PO4). The high sorption capacity of P. indicus shell obtained in this study suggests its use as an effective, low-cost biosorbent for the removal of acid dyes from wastewaters.

Keywords
Acid Blue 25, Penaeus indicus shell, Biosorption, Kinetics, Equilibrium
National Category
Environmental Sciences
Identifiers
urn:nbn:se:kth:diva-160421 (URN)10.1016/j.jtice.2014.09.019 (DOI)000347742300011 ()2-s2.0-84919418412 (Scopus ID)
Note

QC 20150223

Available from: 2015-02-23 Created: 2015-02-19 Last updated: 2017-12-04Bibliographically approved
Norrström, A. C. & Löv, Å. (2014). Uranium theoretical speciation for drinking water from private drilled wells in Sweden: Implications for choice of removal method. Applied Geochemistry, 51, 148-154
Open this publication in new window or tab >>Uranium theoretical speciation for drinking water from private drilled wells in Sweden: Implications for choice of removal method
2014 (English)In: Applied Geochemistry, ISSN 0883-2927, E-ISSN 1872-9134, Vol. 51, p. 148-154Article in journal (Refereed) Published
Abstract [en]

Elevated concentrations of uranium (U) from natural sources have been measured in drinking water from private drilled wells in Sweden and many other countries world-wide. Although U is a radioactive element, radioactivity is not the main concern, but rather chemical toxicity, e. g. kidney damage. Uranium chemistry is complex and U in water has a very high tendency to form complexes with other compounds. Since speciation is crucial for the properties of U, and therefore the removal efficiency, this study determined theoretical U species in drinking water from private drilled wells using the geochemical model Visual MINTEQ. The drinking water samples used in modelling were from two datasets: (1) 76 water samples selected from a previous survey of 722 wells; and (2) samples of drinking water from 21 private wells sampled in May 2013. The results showed that neutrally charged U complexes dominated in the pH range 6.7-7.8, which is common in private drilled wells. This has important implications for removal method, since charge is an important factor for U removal efficiency. In the alkaline pH range, one of two calcium-UO2 carbonate complexes dominated and calcium (Ca) concentration proved to be a key factor determining the Ca-UO2 carbonate complex formed: the neutral Ca2UO2(CO3)(3)(0)(aq) or the negative CaUO2(CO3)(3)(2). Complexes with organic carbon (C) varied greatly in the acidic range, indicating that it is crucial to measure organic C content in the water since it is critical for the dissolved organic matter (DOM)-UO2 complex formation. Therefore before U removal method is selected, some crucial parameters for complex formation should be measured. Based on our results, such measurements should include pH, Ca, alkalinity and organic C concentration, as these determine the type of complexes formed and their charge.

National Category
Geochemistry Geophysics
Identifiers
urn:nbn:se:kth:diva-158384 (URN)10.1016/j.apgeochem.2014.10.005 (DOI)000345405400015 ()2-s2.0-84908571542 (Scopus ID)
Note

QC 20150113

Available from: 2015-01-13 Created: 2015-01-07 Last updated: 2017-12-05Bibliographically approved
Norrström, A.-C. & Knutsson, G. (2012). Stable lead isotopes as tracers of groundwater pollution in the water supply for a small village. Environmental Earth Sciences, 67(4), 1085-1095
Open this publication in new window or tab >>Stable lead isotopes as tracers of groundwater pollution in the water supply for a small village
2012 (English)In: Environmental Earth Sciences, ISSN 1866-6280, Vol. 67, no 4, p. 1085-1095Article in journal (Refereed) Published
Abstract [en]

High lead (Pb) concentration has been measured in the incoming water to the water supply for a small Swedish village since the 1990s. There are several sources of the contamination and the objective of this study was to identify these by analysis of Pb isotopes. Lead has four stable isotopes in nature (Pb-204, Pb-206, Pb-207, Pb-208) and the relative proportions of these vary according to their geological source. The study showed that two anthropogenic sources of Pb, a glassworks deposit and a highway, had similar Pb isotope ratios and thus it was not possible to separate them. However, the very high Pb concentration in the glassworks deposit suggested that this is the main source of the very high concentrations observed occasionally in low flow conditions. The soil in the recharge area of the most important well for the water supply had elevated Pb concentrations compared with background values in soils. Moreover, the Pb ratios in this soil differed from those in the anthropogenic sources. Several sites of mineralisation or natural enrichment have been identified in outcrops about 14 km northwest of the site and several anomalies in Pb exist in the glacial till. The conclusion was that Pb originating from the soil in the recharge area generally dominates and leads to Pb concentrations in water of 1-2 A mu g L-1. However, at higher concentrations, e.g. around 10 A mu g L-1, water transported in cracks and fissure from the glassworks deposit becomes more important.

Place, publisher, year, edition, pages
Springer, 2012
Keywords
Lead, Drinking water, Glassworks, Isotopes
National Category
Geochemistry
Identifiers
urn:nbn:se:kth:diva-91374 (URN)10.1007/s12665-012-1553-y (DOI)000309347200012 ()2-s2.0-84867103849 (Scopus ID)
Note

QC 20121109

Available from: 2012-03-13 Created: 2012-03-13 Last updated: 2012-11-09Bibliographically approved
Somerville, R. & Norrström, A.-C. (2009). Application of two low-cost adsorption media for removal of toxic metals from contaminated water. Water Science and Technology, 60(4), 935-942
Open this publication in new window or tab >>Application of two low-cost adsorption media for removal of toxic metals from contaminated water
2009 (English)In: Water Science and Technology, ISSN 0273-1223, E-ISSN 1996-9732, Vol. 60, no 4, p. 935-942Article in journal (Refereed) Published
Abstract [en]

Since the operational costs of commonly used materials for adsorption of toxic metals can be substantial, natural material may be of great interest for treatment applications. Two types of natural material that have shown particular promise are seaweed and seafood waste. In this study, adsorption capacity of Brown seaweed and shrimp shells were compared with a strong acid cation exchange resin (CER). A case study site was used as a reference point and column experiments were designed in a similar manner although at different scale. Each media reduced concentrations of the target metals to levels below defined reference values. If the alternative adsorption media perform as well in the field as the laboratory, the results suggest that the media tested would completely remove the toxic metals in groundwater and runoff water. Seaweed and shrimp shells had stronger affinities for Pb and Cu than CER. However, CER was superior in affinity for Zn, the most weakly bound metal. Moreover, the results showed that Ca in the solution reduced the adsorption capacity of the other metals. This illustrates the limitations of applying the behaviour of the batch studies with single metal solutions to a multi-component system with competitive adsorption.

Keywords
contaminated water, low-cost material, metal removal, seaweed, shrimp, shell, heavy-metals, algal biomass, biosorption, waste, adsorbents, mechanisms, sorbents, cadmium, seaweed, column
Identifiers
urn:nbn:se:kth:diva-18732 (URN)10.2166/wst.2009.415 (DOI)000269550700012 ()2-s2.0-70349919692 (Scopus ID)
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved
Norrström, A.-C. & Somerville, R. (2009). Low-cost adsorption media for removal of toxic metals from contaminated water. Paper presented at 19th Annual VM Goldschmidt Conference, June 21-26 Davos Switzerland. Geochimica et Cosmochimica Acta, 73(13), A953-A953
Open this publication in new window or tab >>Low-cost adsorption media for removal of toxic metals from contaminated water
2009 (English)In: Geochimica et Cosmochimica Acta, ISSN 0016-7037, E-ISSN 1872-9533, Vol. 73, no 13, p. A953-A953Article in journal (Other academic) Published
National Category
Geochemistry
Identifiers
urn:nbn:se:kth:diva-53094 (URN)000267229902366 ()
Conference
19th Annual VM Goldschmidt Conference, June 21-26 Davos Switzerland
Note
QC 20111222 19th Annual VM Goldschmidt Conference, Davos, SWITZERLAND, JUN 21, 2009 Available from: 2011-12-21 Created: 2011-12-21 Last updated: 2017-12-08Bibliographically approved
Berggren Kleja, D., Elert, M., Gustafsson, J. P., Jarvis, l. & Norrström, A.-C. (2006). Metallers mobilitet i mark. Stockholm: Naturvårdsverket
Open this publication in new window or tab >>Metallers mobilitet i mark
Show others...
2006 (Swedish)Report (Refereed)
Abstract [sv]

I rapporten beskrivs nuvarande kunskapsläge när det gäller metallers uppträdande imark. Riskbedömningar för metaller i förorenad mark diskuteras.De flesta metaller binds i viss utsträckning i marken, oftast genom olika ytreaktioner med markens organiska material eller med järn- och aluminiumoxider, ochibland även genom utfällningsreaktioner. I vilken omfattning detta sker beror avfaktorer som t.ex. pH, redoxförhållanden, löst organiskt material (DOC) i markvattnet, samt förekomst av konkurrerande joner. Det är också viktigt att beaktavilka former metallerna förekommer som i markvattnet. Komplexbildning medt.ex. DOC minskar i regel toxiciteten. För att bättre ta hänsyn till markkemiskaförhållanden i riskbedömningen bör geokemiska modeller komma till ökad användning.Metaller lösta i vattnet följer med när vattnet strömmar och kan transporterastill grund- och ytvatten eller tas upp av växter. Hur snabbt detta går beror, förutomkemiska och biologiska processer, även på en rad olika jordegenskaper. Till exempel innehåller vissa jordar s.k. makroporer vilka ger upphov till preferentiellt flöde.Detta innebär att en del av metallerna snabbare kan transporteras genom marken,förbi jordpartiklar där metallerna annars skulle bindas.De olika modeller som används för att beskriva påverkan av markförorening pågrundvatten kan delas in i två grupper: stationära modeller antar att källtermen ärkonstant och tar enbart hänsyn till den utspädning som sker i grundvattnet. Exempel på sådana modeller är den svenska riktvärdesmodellen, JAGG och RBCA. I detvå senare modellerna finns möjlighet att ta hänsyn till nedbrytning av organiskaämnen. Tidsberoende modeller antar en avklingande källterm och en tidsberoendetransport i grundvattnet, exempelvis RISC och TAC-modellen. För beräkning avtransport i grundvattnet tas hänsyn till flödes- och fastläggningsmekanismer somadvektion, dispersion och linjär sorption.Med hjälp av laktester kan man uppskatta den andel av metallföroreningen somär löslig i vatten. Denna information kan sedan användas för att beräkna adsorptionsparametrar (Kd-värden, m.m.) för spridningsmodeller. Laktester kan ibland gemissvisande resultat eftersom de orsakar utspädning av provet, bl.a. blir DOCkoncentrationerna alltför låga. Dessutom bör de inte användas för sulfidjordar.Geokemiska modeller kan användas för att förbättra tolkningen av laktester för attfå till stånd realistiska uppskattningar av Kd-värden.Det finns ett antal spridningsmodeller som kan användas för att bedöma riskenför spridning till grundvatten och ytvatten. De är kraftfulla verktyg som dock ännuinte använts i någon större utsträckning i Sverige. Detta beror på flera orsaker, bl.a.de hydrogeologiska förhållandena i Sverige, behovet av anpassningen av de modeller som är allmänt tillgängliga, svårigheter att ta fram bra dataunderlag samt ensvag tradition i att använda modeller och förstå modellresultat.Ett par angelägna forsknings- och utvecklingsinsatser är att ta fram bättre uppskattningar av metalladsorption i svensk mark, och att anpassa existerande spridningsmodeller för användning i riskbedömningar.

Place, publisher, year, edition, pages
Stockholm: Naturvårdsverket, 2006. p. 114
Series
Naturvårdsverket rapporter, ISSN 0282-7298 ; 5536
National Category
Geochemistry
Identifiers
urn:nbn:se:kth:diva-53359 (URN)91-620-5536-4 (ISBN)
Note
QC 20120112Available from: 2011-12-27 Created: 2011-12-27 Last updated: 2012-01-12Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0001-8491-4675

Search in DiVA

Show all publications