Habib Salam Abayomi, Abdul Qudus, Mahmudov Tural, Jan Bogacki
DOI: 10.15199/17.2025.10.5, GWiTS 10/2025, październik 2025
Pobierz w PDF (Open Access)
Abstract:
Industrial wastewater treatment must be carried out in order to reduce the impact on both living organisms and non-living environments. Cosmetic wastewater was chosen for this study due to the rapid growth of the cosmetic sector and the complexity of its effluents. Wastewater from a cosmetic industry was collected, and analyses were carried out which involved application of the Fe0/S2O8 2- process for cosmetic wastewater treatment. The purpose of the study is to understand the correlation between pollutants concentration, metallic iron dosage, persulfate dosage, as well as the duration of contact and their combined effects. The experiment was carried out with different dosages of iron and persulfate, 1 to 4 g/L, and contact times (0 to 120 minutes). It was shown that Total Organic Carbon (TOC) decreased from 613.3 mg/L to 530.3 mg/L after treatment. Five day biochemical oxygen demand (BOD5) increased from 114 mg/L to 138 mg/L which, combined with the general decrease in the content of organic compounds expressed as TOC, indicates an increase in the susceptibility of wastewater to biological treatment. The comprehensive analysis indicates improvements in wastewater quality. This study demonstrated that advanced oxidation procedures utilizing metallic iron and persulfate are promising as wastewater technology.
Keywords: industrial wastewater, advanced oxidation processes, metallic iron, persulfates
Streszczenie:
Oczyszczanie ścieków przemysłowych musi być prowadzone w celu ograniczenia ich wpływu zarówno na organizmy żywe, jak i na środowisko nieożywione. Do badań wybrano ścieki z przemysłu kosmetycznego, ze względu na szybki rozwój sektora kosmetycznego oraz złożoność i zmienność ścieków. Pobierano ścieki z zakładu przemysłu kosmetycznego i przeprowadzono badania obejmujące zastosowanie procesu Fe⁰/S₂O₈²⁻ do ich oczyszczania. Celem badań było określenie zależności pomiędzy stężeniem zanieczyszczeń, dawką żelaza metalicznego, dawką nadsiarczanu, a także czasem kontaktu oraz ich łącznym wpływem. Eksperyment przeprowadzono z użyciem różnych dawek żelaza i nadsiarczanu (1–4 g/L) oraz czasów kontaktu (0–120 minut). Wykazano, że zawartość ogólnego węgla organicznego (OWO) zmniejszyła się po procesie z 613,3 mg/L do 530,3 mg/L. Pięciodobowe biochemiczne zapotrzebowanie tlenu (BZT₅) wzrosło ze 114 mg/L do 138 mg/L, co w połączeniu z ogólnym spadkiem zawartości związków organicznych wyrażonych jako OWO, wskazuje na wzrost podatności ścieków na oczyszczanie biologiczne. Przeprowadzona analiza potwierdza poprawę jakości ścieków. Badania wykazały, że procesy pogłębionego utleniania wykorzystujące żelazo metaliczne i nadsiarczan są obiecującą technologią oczyszczania ścieków.
Słowa kluczowe: ścieki przemysłowe, procesy pogłębionego utleniania, żelazo metaliczne, nadsiarczan
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