The Effect of Light-Emitting Diodes Illumination Period and Light Intensity on High Rate Algal Reactor System in Laundry Wastewater Treatment

• Autorzy: Tangahu B. V. , Triatmojo A. , Purwanti I. F. , Kurniawan S. B.

Identyfikatory

DOI

10.12911/22998993//91881

• Języki publikacji: EN

Abstrakty

EN

Wastewater that contains high concentration of nutrients can create instability in water ecosystem if left untreated. Laundry wastewater contains nutrients in high concentration. The nutrients that commonly found in laundry wastewater are nitrogen and phosphorus. This study had a purpose to determine the effect of illumination period and light intensity for the removal of Chemical Oxygen Demand (COD), Nitrogen-ammonia (NH₃-N), and phosphate (P) content using Chlorella vulgaris in High Rate Algal Reactor (HRAR) treatment. Variables that used were exposure period of 12 and 24 hours and light intensity of 2000–3000 Lux, 4000–5000 Lux, and 6000–7000 lux. The parameters tested to determine the efficiency of nutrient removal were COD, Nitrogen-ammonia, phosphate and Chlorophyll α to determine the condition of algae development. The results showed that the highest nutrient removal were obtained by the reactor with 24 hours illumination period with light intensity of 6000–7000 Lux that was capable of removing 54.63% of COD, and 22.15% of P. The 12-hour illumination period was better in terms of NH₃-N removal, up to 50.07%. On the basis of the of statistic test result, the illumination period did not significantly influence the removal efficiency of COD, NH₃-N and P indicated by P-value >0.05, while the light intensity significantly affect the removal of COD and NH₃-N showed by P value <0.05.

Słowa kluczowe

EN

algae; Chlorella vulgaris; laundry wastewater; illumination period; light-emitting diodes; light intensity; microalgae

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2018
• Tom: Vol. 19, nr 6
• Strony: 170--175
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Tangahu B. V.

• Department of Environmental Engineering, Faculty of Civil, Environmental and Geo Engineering, Institut Teknologi Sepuluh Nopember, Jalan Raya ITS, Kampus ITS Sukolilo, Surabaya 60111, Indonesia

autor

Triatmojo A.

• Department of Environmental Engineering, Faculty of Civil, Environmental and Geo Engineering, Institut Teknologi Sepuluh Nopember, Jalan Raya ITS, Kampus ITS Sukolilo, Surabaya 60111, Indonesia

autor

Purwanti I. F.

• Department of Environmental Engineering, Faculty of Civil, Environmental and Geo Engineering, Institut Teknologi Sepuluh Nopember, Jalan Raya ITS, Kampus ITS Sukolilo, Surabaya 60111, Indonesia

autor

Kurniawan S. B.

• Department of Environmental Engineering, Faculty of Civil, Environmental and Geo Engineering, Institut Teknologi Sepuluh Nopember, Jalan Raya ITS, Kampus ITS Sukolilo, Surabaya 60111, Indonesia

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).