Naslov
Praćenje kvalitete otpadnih voda industrije gnojiva upotrebom ionske kromatografije
(Monitoring of fertilizer industry wastewater quality by using ion chromatography)

Autori
Cerjan Stefanović, Štefica ; Bolanča, Tomislav ; Regelja, Melita ; Leaković, Stjepan ; Krmelić, Ankica ; Zrinšćak, Branka ; Ukić, Šime

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Knjiga sažetaka = Book of abstracts / XIX. hrvatski skup kemičara i kemijskih inženjera / Rapić, Vladimir ; Rogošić, Marko - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Hrvatsko kemijsko drustvo, 2005, 231-231

Skup
XIX. hrvatski skup kemičara i kemijskih inženjera

Mjesto i datum
Opatija, Hrvatska, 24.04.2005. - 27.04.2005

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
otpadne vode; industrija gnojiva; ionska kromatografija
(wastewater; fertilizer industry; ion chromatograpy)

Sažetak
Inorganic cations and anions are commonly monitored for environmental protection purposes in wastewater. The presence of nitrate in foods is mainly due to plants, taking nitrogen from the soil in this ionic form. The use of nitrogen containing fertilizers increases the nitrate concentration in the soil and therefore, the nitrate content in plants grown therein is above the normal level. That is why it is essential to develop analytical methods that allow the simultaneous determination of these compounds in fertilizer industry wastewater. The aim of this work is development of ion chromatographic method for monitoring of sodium, ammonium, potassium, magnesium, calcium, fluoride, chloride, nitrite, sulphate, nitrate and phosphate in fertilizer industry wastewater. Real samples were fertilizer industry wastewater TMG 1 and TMG 2 from Petrokemija d.d., Croatia, fertilizer factory: • TMG 1: fertilizer industry wastewater from following processes: production of NPK fertilizer 1, KAN fertilizer 1, nitric acid 1 and process water preparation 1. • TMG 2: fertilizer industry wastewater from following processes: production of NPK fertilizer 2, KAN fertilizer 2, nitric acid 2, sulphuric acid, phosphoric acid, ammonia, urea and process water preparation 2. Developed ion chromatographic method is compared to widely used methods for monitoring of fertilizer industry wastewater, namely: flame spectrometry, colorimetry, titrimetry, ion selective electrode determination, spectrophotometry, turbidimetry. By performing validation procedure and number of statistical tests it is shown that developed ion chromatographic method has superior performance characteristic.

Izvorni jezik
Hrvatski

Znanstvena područja
Kemija

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