Využitie rastlín pri úprave AMD - fytoremediácie

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Presentation transcript:

Využitie rastlín pri úprave AMD - fytoremediácie EXCLUDERS – schopné obmedziť príjem ťažkých kovov alebo ich transport do nadzemných orgánov- Pálka úzkolistá (Typha angustifolia) HYPERACCUMULATORS – schopné akumulovať veľké množstvo ťažkých kovov v nadzemných orgánoch – Vodný hyacint (Eichhornia crassipes)

Etapy výkumu a realizácie laboratórne experimenty (0,5-10 L) bench scale priamo na lokalite (100-150 L) pilotný projekt finálny projekt

Banská Štiavnica - Šobov

Postupnosť výskumu s AMD zo Šobova experimenty s použitím rašeliny, pôdy a dolomitu – otvorený systém, 1 mesiac experimenty s hnojom - 250 ml a 500 ml, 150 dní experimenty s hnojom, vápencom a slamou – 7 L , 25 mesiacov bench scale so zmesou hnoja, vápenca a slamy – 150 L, 4 mesiace pilotný projekt – anoxická vápencová drenáž, anaeróbny a aerobic močiar

Laboratórne experimenty 100,150,200,250 ml of AMD 100, 150,200,250 ml upravenej vody pH= 4,71-6,91 Eh= -240 - -350 Fe= 0-100 mg/l Al= 10-15 mg/l

pH versus teplota vnútri vonku

pôvodná hodnota v AMD = 330 – 850 mg/l Odstránenie Al pôvodná hodnota v AMD = 330 – 850 mg/l Al3+ + 3HCO3- = Al(OH)3 + 3CO2

Odtsránenie Fe vonku vnútri

Odstránenie amoniaku a dusičnanov NH4

Povlaky na hladine v testovacích nádobách kalcit & sýra

úspešne upravených 77 L AMD Bench scale na Šobove substrát: hnoj (50 %) vápenec (20 %) slama (20 %) piliny (10%) úspešne upravených 77 L AMD zo Šobova v 2-5 L dávkach

Návrh pilotného systému na Šobove

Výsledky pilotného projektu

Smolník

Bench scale na Smolníku Cell 1 – 5 L of AMD/day Cell 2 – 0,5 L of AMD/day Cell 3 – 1-5 L of AMD/day Cell 4 – 0,5 L of AMD/day

Zmeny pH a vodivosti

Odstraňovanie Cu,Zn,Al a Fe

Odstraňovanie Mn, Mg, Ca a síranov