Biološka obrada procjednih voda odlagališta Mraclinska Dubrava

master's thesis

• Title (english): Biological treatment landfill leachate Mraclinska Dubrava
• Author: Biljana Nuić
• Mentor: Tibela Landeka Dragičević (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Food Engineering); (Laboratory for the Biological Waste Water Treatment); Zagreb
• Defense date and country: 2008-04-11, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

U radu je opisan uređaj za obradu procjednih voda s područja odlagališta komunalnog otpada Mraclinska Dubrava koji primjenjuje proces nitrifikacije sa predenitrifikacijom i membranski bioreaktor. Aktivni mulj na uređaju za obradu otpadne vode nema aktivnost za razgradnju sastojaka otpadne vode. U svrhu postizanja boljih izlaznih parametara istražena je učinkovitost biološke razgradnje sastojaka iz procjedne vode odlagališta pomoću mješovite mikrobne kulture nitrifikanata i denitrifikanata u Laboratoriju za biološku obradu otpadnih voda. Načinjena su tri diskontinuirana pokusa naizmjenične nitrifikacije i denitrifikacije. Razgradnja sastojaka otpadne vode je motrena određivanjem koncentracije organskih sastojaka izraženih kao kemijska potrošnja kisika (KPK), amonijakalnog, nitratnog i nitritnog dušika, fosfata, te promjenama pH-vrijednosti i temperature. Postignuta je potpuna nitrifikacija u sva tri pokusa sa mješovitom mikrobnom kulturom nitrifikanata i denitrifikanata i za početne vrijednosti koncentracije amonijakalnog dušika 340 mg/L.

Abstract (english)

In this study, plant for landfill leachate treatment with process of nitrification, predenitrification (NI & preDNI) and membrane bioreactor (MBR) has been described. Location of this plant is municipal solid waste landfill Mraclinska Dubrava. Applied activated sludge for landfill leachate treatment plant has no ability to degrade substances from waste water. In purpose of better influent results efficiency of biological degradation from landfill leachate with mixed microbial culture in Laboratory for biological wastewater treatment has been investigated. Three discontinued experiments with alternate process of nitrification and denitrification is provided. Organic degradation in prepared samples is observed as chemical oxygen demand (COD), concentration of ammonium, nitrate, nitrite nitrogen, phosphate concentration and also changes with pH values and temperature. Complete nitrification in all three experiments with mixed microbial culture of nitrificant and denitrificant is succeed even with initial ammonium concentration of 340 mg/L.

• Keywords: aktivni mulj; MBR; mješovita mikrobna kultura u obliku granula; nitrifikacija; predenitrifikacija; primarna obrada
• Keywords (english): MBR; mixed microbial culture; nitrification; predenitrification; primary treatment; sludge
• Language: croatian
• URN:NBN: urn:nbn:hr:159:765744
• Study programme: Title: Food Technology; specializations in: Food Engineering; Course: Food Engineering; Study programme type: university; Study level: graduate; Academic / professional title: diplomirani inženjer prehrambene tehnologije; smjer prehrambeno inženjerstvo (diplomirani inženjer prehrambene tehnologije; smjer prehrambeno inženjerstvo)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-09-04 12:31:39