LZC AD - Kardjali

Acid Plant Database April 20, 2011

Owner	Lead-Zinc Complex AD - Kardjali (LZC AD - Kardjali)
Location	127 Boulevard Bulgaria 6600 Kardjali Republic of Bulgaria
Background	Also OTsK AD
Website	www.ock-bg.com
Plant	-
Coordinates*	41° 37' 43" N, 25° 24' 21" E (site)
Type of Plant	Metallurgical
Gas Source	Zinc Roaster
Plant Capacity	300 MTPD, 93 to 98.5% H₂SO₄
SA/DA	DA
Emissions	SO₂: <100 ppm
Status	-
Year Built	-
Technology	Outokumpu Technology (Outotec)
Contractor	-
Remarks	- Outokumpu Technology provided know-how, engineering and basic engineering of equipment for the roaster and sulphuric acid plant for €35 million. - Acid plant occupies an area of 1680 m2 Power Consumption - Roaster: 1400 kWh/h, 112 kWh/tonne (acid) - Gas cleaning and acid plant: 1300 kWh/h, 104 kWh/tonne (acid)
Pictures
General	1955 – Production begins on the site with 5000 tons zinc and 7000 tons sulphuric acid
Reference	-
News	April 18, 2011 - Olovno Tzinkov Komplex AD, a Bulgarian lead and zinc smelter run by Intertrust Holdings AD, was ordered to close its lead unit because of excessive pollution. The Kardjali-based smelter exceeded its annual limit of 24 lead and sulphur dioxide emissions above a specified level by April 12, the Environment Ministry said on its website. “About 350 people will be laid off and we need to coordinate this with government authorities,” Roberto Mladenov, Intertrust’s executive director, said in a phone interview today. “The order to close the lead unit was issued this morning.” Intertrust seeks $70 million to upgrade the unit by 2013, to meet European Union anti-pollution requirements, Intertrust Chairman Valentin Zahariev said in a March 15 interview. The closure won’t affect zinc production, Mladenov said. Intertrust is investing 50 million euros ($72 million) to expand the zinc smelter. It plans to have a new electrolyte unit in operation by the end of the year and to re-equip two more zinc units next year, Zahariev said. Zinc output will be 20,000 tons this year, the same as in 2010, he said. Bulgaria is recovering from its first recession in more than a decade after foreign investment dried up during the global credit crisis. The EU’s poorest country in terms of per- capita GDP is counting on demand for its exports, including metals and machinery, to boost growth to 3.6 percent this year after 0.2 percent in 2010. Intertrust runs five metal, tool and engineering plants in neighboring Serbia, and the Gorubso mines at Madan, in Bulgaria. The company exports 85 percent of its output, mostly to Italy, Germany, Austria and Turkey, Zahariev said. The company’s biggest competitor in Bulgaria is Plovdiv-based KCM. November 25, 2009 - The southern Bulgarian city of Kardzhali has once again seen increased levels of sulfur dioxide (SO₂) pollution. The Regional Environment and Waters Directorate in the city of Haskovo has announced that Kardzhali suffered sulfur dioxide levels well above the legal limit in the afternoon and early evening hours on Tuesday. The sulfur dioxide concentration was 534 micro grams per cubic meter of air at 3 pm, 1 104 micro grams at 4 pm, and 938 micro grams at 5 pm on Tuesday, according to the Environment Directorate; the legally allowed limit is 500 micro grams per cubic meter of air. According to the BGNES news agency, a number of local people with chronic diseases such as asthma, lung and heart problems have complained over the pollution, which caused their condition to deteriorate. The Environment Directorate informed the local authorities immediately but has failed to use the specially installed siren warning system in order to alert the population. The Directorate did send a recommendation to the Lead & Zinc Complex Plc to stop immediately the output of one of its divisions which is believed to have caused the pollution. The management of the lead and zinc plant is reported to have complied immediately with the prescriptions of the environment watchdog but the high levels of sulfur dioxide in the air above Kardzhali remained for more than three hours. This is believed to have been the result of the meteorological conditions at the specific moment. At 6 pm Monday night, the sulfur dioxide levels dropped down to 142 micro grams per cubic meter of air. A similar increase of sulfur dioxide levels was registered in Kardzhali on November 19, 2009, when for two hours they were above the 500 micro gram threshold in the early afternoon hours. Kardzhali has been having problems with sulfur dioxide pollution for a long time with critical air levels being reached about every other month. September 25, 2007 - Outotec has been awarded a contract for the supply of a new zinc roaster with gas cleaning and sulphuric acid plant for OZK Kardzhali, the second biggest zinc smelter in Bulgaria. The contract value is approximately €25 million. Outotec’s scope of delivery covers engineering and supply of the roasting, gas cleaning and acid technology as well as supervision services for the erection and commissioning of the plant. The mechanical completion of the project is scheduled for mid 2009. The new zinc roaster is part of OZK Kardzhali’s €68 million investment program, which will double the production of high-grade zinc by 2009. The roaster train supplied by Outotec will replace the existing 50-year-old roasters of Russian design. Outotec’s process not only increases the efficiency but also improves the energy recovery and environmental conditions of the smelter by reducing dust and sulfur dioxide gas emissions.

MTPD - Metric Tonne per Day STPD - Short Ton per Day
MTPA - Metric Tonne per Annum STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption

* Coordinates can be used to locate plant on Google Earth


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