descriptionPublicationkeyboard_double_arrow_right Article , Other literature type 27 Oct 2017 English Publisher:IWA PublishingJournal:Water Science and Technology, volume 77, pages 304-322 (issn: 0273-1223, eissn: 1996-9732,

Authors: Sponza, D.T.; Alicanoğlu, Pelin;

doi: 10.2166/wst.2017.531

pmid: 29377816

handle: 11499/10985 , 11499/34666

Reuse and recovery of raw hospital wastewater containing ofloxacin after photocatalytic treatment with nano graphene oxide magnetite

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Abstract

Abstract Inadequate treatment of hospital wastewater could result in considerable risks to public health due to its macro- and micropollutant content. In order to eliminate this problem, a new nanoparticle composite was produced under laboratory conditions and a photocatalytic degradation approach was used. Chemical oxygen demand (COD), biological oxygen demand (BOD5), total suspended solids (TSS), total Kjeldahl nitrogen (TKN), total phosphorus (TP) (macro) and oflaxin (micro) pollutant removal were investigated with the nano graphene oxide magnetite (Nano-GO/M) particles by two different processes, namely adsorption and photodegradation. Low removal efficiencies (21–60%) were obtained in the adsorption process for the parameters given above, after 90 min contact time at a pH of 7.8 with 5 g/L Nano-GO/M composite. Using the photodegradation process, higher removal efficiencies were obtained with 2 g/L Nano-GO/M composite for COD (88%), TSS (82%), TKN (95%) and oflaxin (97%), at pH 7.8 after 60 min irradiation time at a UV power of 300 W. The synthesized nanoparticle was reused for two sequential treatments of pharmaceutical wastewater with no significant losses of removal efficiencies (for oflaxin 97%–90%). The quality of the treated hospital wastewater was first class according to the Turkish Water Pollution Control Regulations criteria. This water could also be used for irrigation purposes.

Related Organizations

Dokuz Eylül Üniversitesi Hastanesi
Turkey
Pamukkale University
Turkey

Keywords

Ofloxacin, analysis, Reuse, Efficiency, Wastewater reclamation, Wastewater treatment, recycling, Wastewater, nitrogen, Nanocomposites, Recovery, water pollution control, water management, cost benefit analysis, ofloxacin, pollutant removal, Water treatment, phosphorus, hospital, nanocomposite, irradiation, graphite, pH, nanoparticle, Biochemical oxygen demand, Oxides, waste water recycling, Pollution, suspended particulate matter, Pollution control, Hospitals, Health risks, Graphene oxides, wastewater treatment, Water pollution, Synthesis (chemical), Water pollution control, graphene oxide, magnetite nanoparticle, Graphite, photodegradation, Oxidation-Reduction, ultraviolet radiation, magnetite, radiation response, surface property, Surface Properties, Ultraviolet Rays, Adsorption; Biological Oxygen Demand Analysis; Ferrosoferric Oxide/*chemistry; Graphite/*chemistry; Hospitals; Nanocomposites/*chemistry; Ofloxacin/*analysis/radiation effects; Oxidation-Reduction; Oxides; Surface Properties; Ultraviolet Rays; Waste Water/*chemistry; Water Pollutants, Chemical/*analysis/radiation effects; Water Purification/*methods, chemistry, Article, water pollutant, Water Purification, Magnetite, chemical oxygen demand, Waste Water, composite, procedures, Photooxidation, Biological water treatment, Micropollutant, Biological Oxygen Demand Analysis, waste water, catalysis, photooxidation, Nitrogen removal, Ferrosoferric Oxide, Treatment, oxide group, Nano graphene oxide magnetite composite, adsorption, waste component removal, 628, Chemical oxygen demand, Nanoparticles, biochemical oxygen demand, Public risks, Micropollutants, oxide, Adsorption, Graphene, hospital waste, photocatalysis, oxidation reduction reaction, Water Pollutants, Chemical

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Reuse and recovery of raw hospital wastewater containing ofloxacin after
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