Pulzno amplitudna modulacija kot indikativna metoda za nadzor ravnanja z balastnimi vodami - test instrumenta Walz Water PAM

Aja Golja (Author), Klaudija Sapač (Author), Dušan Žagar (Author), Matej David (Author)

Abstract

Ladje so eden glavnih prenašalcev škodljivih vodnih organizmov in mikrobnih povzročiteljev bolezni po svetu. Predpis D-2 Mednarodne konvencije za nadzor in ravnanje z ladijsko balastno vodo in usedlinami določa največje število za preživetje sposobnih organizmov na enoto prostornine zaradi preprečevanja prenosa, širjenja ter vnosa škodljivih vodnih organizmov in mikrobnih povzročiteljev bolezni po svetu. Konvencija tudi predpisuje inšpekcijski pregled balastnih vod vsake ladje za ugotavljanje skladnosti z zahtevami. Pomorska inšpekcija vzorči balastno vodo na ladji in izvaja hitre indikativne analize vzorcev balastne vode z indikativnimi instrumenti. Ocenili smo uporabnost instrumenta Walz Water PAM za indikativno analizo balastnih vod. Instrument pri meritvi oceni biomaso fitoplanktona (F0) v vzorcu in njegovo fotokemično učinkovitost (Fv/Fm). Meritve instrumenta smo primerjali z rezultati laboratorijske podrobne analize vzorcev za velikostno skupino organizmov z najmanjšim premerom 10-50 um, skladno z zahtevami predpisa D-2. Instrument je pravilno ocenil vseh 19 v podrobni analizi skladnih vzorcev, od 95 v podrobni analizi neskladnih vzorcev pa jih je pravilno ocenil 88 (93 %). Zaključimo lahko, da je instrument primeren za indikativne analize pri nadzoru skladnosti balastne vode s Konvencijo.

Keywords

Walz Water PAM;fluorometrija;pulzno amplitudna modulacija;balastna voda;nadzor;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	1.01 - Original Scientific Article
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
UDC:	628.312/.313:629.5
COBISS:	30538243
ISSN:	0352-3551
Views:	336
Downloads:	96
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Pulse amplitude modulation as an indicative method for monitoring compliance of ballast water management - Walz Water PAM instrument test
Secondary abstract:	Vessels are considered one of the primary pathways for the transfer of harmful aquatic organisms and pathogens. The D-2 Regulation of the Ballast Water Management Convention specifies the maximum number of organisms per unit volume in order to prevent their spread and transfer, and the introduction of harmful aquatic organisms and pathogens around the globe. The Convention also requires an inspection of every ships ballast water in order to verify compliance with the requirements. Inspectors take samples of ballast water and perform quick analyses on board using indicative instruments. We evaluated the appropriateness of the Walz Water PAM instrument for indicative analysis of ballast water. The instrument estimates the phytoplankton biomass and its photochemical efficiency. The instrument measurements were compared to the results of detailed laboratory analyses of samples for phytoplankton cells in the size range 10-50 um and with minimum diameter, as addressed by the Regulation D-2. The instrument correctly evaluated all 19 compliant samples from the detailed analyses and 88 of 95 non-compliant samples from detailed analyses (93%). We can thus conclude that Walz Water PAM is a suitable tool for the indicative analysis of vessels ballast water.
Secondary keywords:	Walz Water PAM;fluorometry analysis;Pulse Amplitude Modulation;ballast water;compliance monitoring and enforcement;indicative;
Type (COBISS):	Scientific work
Pages:	str. 29-42
Volume:	33
Issue:	ǂ[št.] ǂ58
Chronology:	jun. 2020
DOI:	10.15292/acta.hydro.2020.03
ID:	12612137