Wastewater treatment in the city of Koprivnica
Based on the concept of sustainable development, water must be stored and protected for present and future generations. This also means saving the water through wastewater treatment. The primary role of the wastewater treatment plants is to treat wastewaters up to a satisfactory level of quality as...
Main Authors: | , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek
2020-01-01
|
Series: | Croatian Journal of Food Science and Technology |
Subjects: | |
Online Access: | https://hrcak.srce.hr/file/361883 |
id |
doaj-30c7b7601ab94f40878c0aa60fbc6a31 |
---|---|
record_format |
Article |
spelling |
doaj-30c7b7601ab94f40878c0aa60fbc6a312021-01-04T09:51:21ZengJosip Juraj Strossmayer University of Osijek, Faculty of Food Technology OsijekCroatian Journal of Food Science and Technology1847-34661848-99232020-01-0112229630610.17508/CJFST.2020.12.2.02191Wastewater treatment in the city of KoprivnicaANITA PTIČEK SIROČIĆ0IVANA MLINARIĆ1DRAGANA DOGANČIĆ2NIKOLA SAKAČ3SANJA HORVAT4Faculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaFaculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaFaculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaFaculty of Geotechnical Engineering, University of Zagreb, Hallerova aleja 7, 42000 Varaždin, CroatiaKoprivničke vode d.o.o., Mosna ulica 15a, 48000 Koprivnica, CroatiaBased on the concept of sustainable development, water must be stored and protected for present and future generations. This also means saving the water through wastewater treatment. The primary role of the wastewater treatment plants is to treat wastewaters up to a satisfactory level of quality as close as possible to the natural state. The central wastewater treatment plant (WWTP) of the City of Koprivnica treats wastewater including the tertiary wastewater. Due to considerable fluctuations in wastewater volumes and loads, sequential batch reactor (SBR) technology was selected as the best solution for wastewater treatment. The final stage of treatment at the WWTP of the City of Koprivnica is the process of sludge treatment by aerobic stabilization, dehydration and MID-MIX technology, which produces a chemically inert powder – solidificate. Solidificate can be used in civil engineering or it can be disposed to landfill without environmental impact. This paper analyses the physical-chemical indicators of wastewater quality (chemical oxygen demand - COD, biological oxygen demand - BOD5, total nitrogen, total phosphorus, suspended matter) on wastewater samples from the WWTP of the City of Koprivnica in a period from 2014 to 2016. The results indicate that the treated wastewater has a satisfactory quality and that the WWTP of the City of Koprivnica works efficiently.https://hrcak.srce.hr/file/361883wastewater treatmentkoprivnicaphysical-chemical water indicatorswater quality |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
ANITA PTIČEK SIROČIĆ IVANA MLINARIĆ DRAGANA DOGANČIĆ NIKOLA SAKAČ SANJA HORVAT |
spellingShingle |
ANITA PTIČEK SIROČIĆ IVANA MLINARIĆ DRAGANA DOGANČIĆ NIKOLA SAKAČ SANJA HORVAT Wastewater treatment in the city of Koprivnica Croatian Journal of Food Science and Technology wastewater treatment koprivnica physical-chemical water indicators water quality |
author_facet |
ANITA PTIČEK SIROČIĆ IVANA MLINARIĆ DRAGANA DOGANČIĆ NIKOLA SAKAČ SANJA HORVAT |
author_sort |
ANITA PTIČEK SIROČIĆ |
title |
Wastewater treatment in the city of Koprivnica |
title_short |
Wastewater treatment in the city of Koprivnica |
title_full |
Wastewater treatment in the city of Koprivnica |
title_fullStr |
Wastewater treatment in the city of Koprivnica |
title_full_unstemmed |
Wastewater treatment in the city of Koprivnica |
title_sort |
wastewater treatment in the city of koprivnica |
publisher |
Josip Juraj Strossmayer University of Osijek, Faculty of Food Technology Osijek |
series |
Croatian Journal of Food Science and Technology |
issn |
1847-3466 1848-9923 |
publishDate |
2020-01-01 |
description |
Based on the concept of sustainable development, water must be stored and protected for present and future generations. This also means saving the water through wastewater treatment. The primary role of the wastewater treatment plants is to treat wastewaters up to a satisfactory level of quality as close as possible to the natural state. The central wastewater treatment plant (WWTP) of the City of Koprivnica treats wastewater including the tertiary wastewater. Due to considerable fluctuations in wastewater volumes and loads, sequential batch reactor (SBR) technology was selected as the best solution for wastewater treatment. The final stage of treatment at the WWTP of the City of Koprivnica is the process of sludge treatment by aerobic stabilization, dehydration and MID-MIX technology, which produces a chemically inert powder – solidificate. Solidificate can be used in civil engineering or it can be disposed to landfill without environmental impact. This paper analyses the physical-chemical indicators of wastewater quality (chemical oxygen demand - COD, biological oxygen demand - BOD5, total nitrogen, total phosphorus, suspended matter) on wastewater samples from the WWTP of the City of Koprivnica in a period from 2014 to 2016. The results indicate that the treated wastewater has a satisfactory quality and that the WWTP of the City of Koprivnica works efficiently. |
topic |
wastewater treatment koprivnica physical-chemical water indicators water quality |
url |
https://hrcak.srce.hr/file/361883 |
work_keys_str_mv |
AT anitapticeksirocic wastewatertreatmentinthecityofkoprivnica AT ivanamlinaric wastewatertreatmentinthecityofkoprivnica AT draganadogancic wastewatertreatmentinthecityofkoprivnica AT nikolasakac wastewatertreatmentinthecityofkoprivnica AT sanjahorvat wastewatertreatmentinthecityofkoprivnica |
_version_ |
1724349404474769408 |