Enemalta contends report findings on origins of black dust

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Enemalta contends report findings on origins of black dustEnemalta Corporation has reacted to the statement from MEPA yesterday regarding the report findings with Marsa Power Station “being the likely source black dust.”

Enemalta said “it contends the report’s conclusion that it is the major contributor to the issue of black dust in the areas mentioned by the report. The report does not carry an analysis of the composition of the samples and comparison with the power station produced flyash, and bases its conclusions on the ‘evidence’ which can only be drawn from the location and history of the Marsa Power Station.”

“At no point does the report confirm that the main source of the black dust samples collected is the power station, simply because of the 11 particles analysed, only two contain Vanadium and Nickel which are characteristic markers found in dust emissions from the combustion of the fuel used at Marsa. The report also fails to compare the flyash actually produced by the Marsa Power Station to confirm that the concentrations were similar or not.”

“Enemalta points out that it does not agree that the sporadic episodes of increased black dust is attributable to Marsa Power Station. The plant operates constantly and the points mentioned, such as faults or soot blowing, are really not relevant. Enemalta carries out soot blowing twice or three times a day and logs of this activity are submitted to MEPA, so that they can correlate any abnormal dust falls, which has not happened to date.”

“Furthermore the black dust complaints where concentrated over a period of two months and cannot be attributed to the 10 month period when the precipitators were out of service.”

“At the time, our monitoring equipment recorded almost steady emissions, consistent with those before and after this period. Enemalta does get short term effects during boiler faults or boiler start-ups, but these generally only last for a few minutes in case of faults or intermittently over a few hours in case of start-ups, and which cannot, with Profs Vella’s own reasoning be responsible for these black dust episodes.”

“Every effort is being made by Enemalta to shut down the Marsa Power Station as soon as possible bearing in mind the energy supply requirements of the country. Apart from purchasing lower sulphur fuel oil (0.7% instead of 1% sulphur) to reduce emissions, Enemalta is continuously investing in projects such as the Delimara power station extension and the interconnector cable which will connect Malta to the European grid,” Enemalta concluded.

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