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Comparison of P-sorption selected indices in soils with different physico-chemical properties

100%

Domagala-Swiatkiewicz I., Wit M.

Polish Journal of Soil Science

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2003

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tom 36

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nr 1

In laboratory investigations, 9 methods of sorption ability against phosphorus in 36 soils of southern Poland (loam 7-71% , Corg 0.41-2.0%, Alox 14.7-64.8 mmol kg -1 and Feox 15.7-174.5 mmol kg-1) were compared. Evaluation of the maximum P sorption (Pmax) as well as two ways of buffering capacity against P (PBC) was estimated from multipoint curves according to the data of the Langmuir and Freundlich equation. The indices of P sorption obtained were compared with the single-point indices received by the addition to the soil of one P concentration (PSI1500, IPEC, and PRI200). All the indices of P sorption determined were highly correlated, being the evidence of the usability of the single-point indices in the evaluation of phosphorus sorption in routine soil tests. A significant correlation was found between the indices compared of Alox, Feox, loam concentration and CEC in the soil. The saturation of the soil with phosphorus, estimated by the Pox / (0.5(Feox + Alox ) was low and was in the range in 0.7-8.6 %.

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Testing of reactive materials for phosphorus removal from water and wastewater-comparative study

84%

Karczmarczyk A., Bus A.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2014

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tom 46

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nr 1

Excess of phosphorus in surface water is a global problem. Phosphorus found in rivers, streams, agricultural ditches and lakes comes from both point and diffuse sources. To keep water bodies in a good ecological status it is necessary to manage it a at local level. One of the possible solutions is to use reactive materials in wastewater treatment plants as well as in case of diffuse sources of pollution to implement it in water bodies transporting pollutants from small catchments. This paper presents results of research made over the period of 6 years (2008–2013) in the Department of Environmental Improvement and Water Center WULS-SGGW. Seventeen different materials available in Poland and in other parts of the world were tested as potential reactive materials for phosphorus. The most effective P-sorption reactive materials are: Polonite®, shell sand, AAC, Pollytag and limestone with the apparent sorption capacities of: 94.32, 48.39, 43.17, 28.95, and 11.12 mg/g respectively.

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Wiazanie kadmu w obecnosci magnezu przez wybrane preparaty wytlokowe

67%

Borycka B., Borycki J.

Żywność Nauka Technologia Jakość

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2002

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tom 09

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nr 3

77-87

Celem badań było określenie zdolności sorpcji kadmu w obecności magnezu przez preparaty z wytłoków czarnych porzeczek i ich kompozycji z wytłokami jabłkowymi oraz wpływu poszczególnych frakcji włókna pokarmowego na jego zdolności sorpcyjne. Oba preparaty wytłokowe w około 35% wiązały kadm, niezależnie od warunków prowadzonego eksperymentu, natomiast preparat mieszany był lepszym desorbentem magnezu.

Ograniczanie wyników

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Polish Journal of Soil Science

1 Żywność Nauka Technologia Jakość

1 Borycka B.

1 Borycki J.

1 Bus A.

1 Domagala-Swiatkiewicz I.

1 Karczmarczyk A.

1 Wit M.

1 2014

1 2003

1 2002

Comparison of P-sorption selected indices in soils with different physico-chemical properties

Testing of reactive materials for phosphorus removal from water and wastewater-comparative study

Wiazanie kadmu w obecnosci magnezu przez wybrane preparaty wytlokowe