Učinkovitost obrade otpadne vode iz procesa proizvodnje šećera iz šećerne repe i sirovog šećera iz šećerne trske

undergraduate thesis

• Title (english): Treatment efficiency of waste water in the process of sugar production from sugar beet and raw sugar from sugar cane
• Author: Nataša Hokal
• 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: 2010-07-15, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

U ovom završnom radu dan je prikaz rada sustava za biološku obradu otpadnih voda tvornice šećera Viro d.d. Virovitica tijekom proizvodnje šećera iz šećerne repe (zelena kampanja) i sirovog šećera dobivenog iz šećerne trske (žuta kampanja). Učinkovitost uklanjanja organskih sastojaka izraženih kao BPK5 anaerobnog stupnja i za zelenu i za žutu kampanju je 85%, a aerobnog stupnja iznosi 95%. Tehnološke vode zelene i žute kampanje su različito opterećene organskim sastojcima, a postizanje iste učinkovitosti uklanjanja onečišćenja je razlog što projektno opterećenje fermentora iznosi 9000 mg KPK/L. Anaerobni dio uređaja za biološku obradu otpadne vode ANAMET se isključuje iz rada prestankom kampanje isključivo zbog štednje jer šećerana tada nema izvor zagrijavanja. Zbog prestanka rada fermentora ne obradi se sva otpadna voda nego se zadržava u taložnicama a obrađuje se tijekom slijedeće kampanje.

Abstract (english)

This final work shows an working overview of the system for biological wastewater treatment in sugar factory Viro d.d.Virovitica during the production of sugar from sugar beet (green campaign) and raw sugar obtained from sugar cane (yellow campaign). Removal efficiency of organic substances, expressed as BPK5 in the anaerobic stage, both for green and yellow campaign, is 85% and in the aerobic stage is 95%. Technological waters of green and yellow campaign are burdened with a different amount of organic ingredients, but achieving the same removal efficiency of pollutants is the reason why fermentor workload design amounts 9000 mg KPK / L. Anaerobic part of the device for biological wastewater treatment ANAMET is excluded from work by the termination of the campaign, only due to energy saving, where as sugar factory doesn`t have heat source during that time. Work termination of the fermentor is the reason why waste water isn`t fully processed, yet it is retained in the sedimentation tanks and processed during the following campaign.

• Keywords: otpadna voda šećerane; biorazgradnja; šećerna repa; šećerna trska; uređaj za biološku obradu otpadne vode ANAMET
• Keywords (english): wastewater of sugar factory; biodegradation; sugar beet; sugar cane; device for biological wastewater treatment ANAMET
• Language: croatian
• URN:NBN: urn:nbn:hr:159:529231
• Study programme: Title: Food Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-06-07 12:02:02