Naslov
Efficiency of Subsurface Flow Constructed Wetland with Trickling Filter

Autori
Anić Vučinić, Aleksandra ; Tepeš, Predrag ; Hrenović, Jasna

Izvornik
Environmental technology (0959-3330) 33 (2012), 11; 1323-1330

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
subsurface flow ; constructed wetland ; trickling filter ; wastewater purification

Sažetak
Effective wastewater purification in subsurface flow constructed wetland must include adequate pre-treatment and ensure sufficient amount of dissolved oxygen. In the pilot scale, the subsurface flow constructed wetland (CW) consisted of the primary settlement tank, trickling filter for pre-treatment and two serially assembled basins. The trickling filter was added to ensure sufficient aeration, increase purification of the wastewater and to shorten the wastewater purification time. The estimated nominal flow was 0.7 m3/day. The experiments were conducted using the wastewater from the municipal sewage canal of the city of Zagreb, with utilization of three different flows: 0.72 (A), 1.44 (B) and 2.88 (C) m3/day. The efficiency of the purification influence was monitored over a period of three years (TSS, BOD5, COD, NH4-N, NO2-N, PO4-P, dissolved oxygen, temperature and pH). The experimental results showed the increase of the efficiency removal doubling the nominal flow from 0.7 to 1.44 m3/day, which could be related to the implementation of the trickling filter where high removal rates were achieved.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne tehničke znanosti, Interdisciplinarne tehničke znanosti

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