Effect of plant species on water balance in a pilot-scale horizontal subsurface flow constructed wetland planted with Arundo donax L. and Cyperus alternifolius L. – Two-year tests in a Mediterranean environment in the West of Sicily (Italy)

Abstract Constructed wetlands as a treatment system are widely explored in different climate conditions and established to be effective in pollution removal from water environment. This study aims to demonstrate the performance of pilot-scale subsurface flow constructed wetland for storm water treatment in Latvia. The catchment basin was located in a farmyard of agricultural area and storm water was collected from the impermeable pavements. Storm water was accumulated in an open pond and periodically pumped above the filter part of the subsurface flow constructed wetland. Grab samples were collected once or twice per month at the inlet and outlet of the treatment system during a period of 73 months from year 2014 to 2020. Water quality parameters as nitrate nitrogen (NO3-N), ammonium nitrogen (NH4–N), total nitrogen (TN), orthophosphate phosphorus (PO4-P), and total phosphorus (TP), total suspended solids (TSS), biochemical oxygen demand (BOD5) and chemical oxygen demand (COD) were monitored. Water level at the inlet structure was automatically measured and flow rate was calculated based on the Manning equation for partially filled circular pipes. Results showed the reduction of average concentrations for all parameters during the study period. However, in some sampling cases concentrations increased at the outlet of the treatment system and can be explained by influencing factors of farming and maintenance. The treatment efficiency of NO3-N, NH4-N, TN, PO4-P, TP, TSS, BOD5 and COD concentrations was 17 %, 68 %, 55 %, 78 %, 80 %, 57 %, 80 % and 74 %, respectively. The study site demonstrated a potential to improve water quality in the long term.

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A comparison between model and experimental hydraulic performances in a pilot-scale horizontal subsurface flow constructed wetland

Ecological Engineering ◽

10.1016/j.ecoleng.2013.07.037 ◽

2013 ◽

Vol 60 ◽

pp. 45-49 ◽

Cited By ~ 25

Author(s):

Ezio Ranieri ◽

Angela Gorgoglione ◽

Alessandro Solimeno

Keyword(s):

Constructed Wetland ◽

Subsurface Flow ◽

Pilot Scale ◽

Subsurface Flow Constructed Wetland ◽

Horizontal Subsurface Flow

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Impacting Microbial Communities and Absorbing Pollutants by Canna Indica and Cyperus Alternifolius in a Full-Scale Constructed Wetland System

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph16050802 ◽

2019 ◽

Vol 16 (5) ◽

pp. 802 ◽

Cited By ~ 1

Author(s):

Yinghai Wu ◽

Tao He ◽

Chen Chen ◽

Xiaohang Fang ◽

Dongyang Wei ◽

...

Keyword(s):

Microbial Communities ◽

Plant Species ◽

Nitrogen Removal ◽

Constructed Wetland ◽

Full Scale ◽

Canna Indica ◽

Subsurface Flow Constructed Wetland ◽

Wetland System ◽

Cyperus Alternifolius ◽

Rhizosphere Sediment

Wetland plants that cover the wetlands play an important role in reducing pollutants. The aim of this study was to investigate the effect of two plant species on microbial communities and nitrogen-removal genes and to evaluate the contributions of absorbing pollutants by Canna indica (CI) and Cyperus alternifolius (CA) to the removal performance in both a vertical subsurface flow constructed wetland and a horizontal subsurface flow constructed wetland, which were part of a full-scale hybrid constructed wetland system. The microbial assemblages were determined using 16S rRNA high-throughput sequencing. Results showed that the presence of CI and CA positively affected microbial abundance and community in general and which was positive for the total bacteria and ammonia nitrogen removal in the CWs. The higher abundance of Nitrospirae appeared in the non-rhizosphere sediment (NRS) than that in the rhizosphere sediment (RS). More denitrification genes were found in NRS than in RS. The copy numbers of narG, nirS and nosZ genes for CA were higher than those for CI. Wetland plant species can significantly (P < 0.05) affect the distribution of microbial communities in RS. Plant selection is important to promote the development of microbial communities with a more active and diverse catabolic capability and the contribution of plant absorption to the overall removal rate of wetland system can be neglected.

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PERENCANAAN INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) DOMESTIK DENGAN METODE CONSTRUCTED WETLAND DI PERUMAHAN BUMI CIRUAS PERMAI 1 KABUPATEN SERANG

JURNALIS: Jurnal Lingkungan dan Sipil ◽

10.47080/jls.v4i2.1461 ◽

2021 ◽

Vol 4 (2) ◽

pp. 138-149

Author(s):

Wilda Fajar Gusti Ayu ◽

Frebhika Sri Puji Pangesti

Keyword(s):

Constructed Wetland ◽

Subsurface Flow ◽

Grey Water ◽

Black Water ◽

Subsurface Flow Constructed Wetland ◽

Cyperus Alternifolius

Peningkatan pencemaran lingkungan yang terjadi di Kecamatan Ciruas berakibat pada penurunan kualitas air sungai di wilayah Kecamatan Ciruas. Kontribusi pencemaran terjadi dikarenakan belum adanya sarana pengolahan air limbah yang maksimal. Perumahan BCP 1 adalah salah satu penghasil limbah domestik berupa limbah grey water dan black water. Perumahan ini belum terdapat fasilitas pengolahan baik limbah grey water dan black water. Oleh karena itu, diperlukan sistem pengolahan air limbah grey water yang tepat dan efisien. Salah satu alternatifnya adalah dengan metode subsurface flow wetland. Penelitian ini bertujuan untuk mengetahui volume air limbah yang dihasilkan oleh masyarakat Perumahan BCP 1 dan untuk membuat desain pengolahan air limbah. Penelitian pengolahan limbah domestik ini menggunakan tanaman rumput payung (Cyperus alternifolius). Perencanaan IPAL di Perumahan BCP 1 mempertimbangkan aspek kualitas air limbah domestik yang dihasilkan setiap harinya. Kualitas air limbah domestik menunjukkan nilai COD 19,8 mg/L; BOD 12,75 mg/L; TSS 84 mg/L dan pH 7,6. Kemudian dilakukan analisis perhitungan masing-masing unit IPAL yang akan direncanakan di perumahan BCP 1 agar sesuai dengan kriteria baku mutu sesuai dengan Peraturan Menteri Lingkungan Hidup dan Kehutanan Republik Indonesia No. P.68/MENLHK-SETJEN/2016. Sistem IPAL direncanakan terdiri dari unit bak ekualisasi, Subsurface Flow Constructed Wetland dengan tanaman Cyperus alternifolius, dan kolam penampungan. Hasil perencanaan menunjukkan efisiensi pengolahan untuk TSS sebesar 88%; BOD sebesar 12,75 mg/L; COD sebesar 19,8 mg/L; pH sebesar 7,6. Dengan efisiensi tersebut effluent limbah cair IPAL telah memenuhi baku mutu yang ditentukan. Anggaran biaya yang dibutuhkan untuk pembangunan IPAL adalah Rp. 588.191.894.

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Effectiveness of two-stage horizontal subsurface flow constructed wetland planted with Cyperus alternifolius and Typha latifolia in treating anaerobic reactor brewery effluent at different hydraulic residence times

ENVIRONMENTAL SYSTEMS RESEARCH ◽

10.1186/s40068-020-00183-4 ◽

2020 ◽

Vol 9 (1) ◽

Author(s):

Ermias Alayu ◽

Seyoum Leta

Keyword(s):

Constructed Wetland ◽

Treatment Effectiveness ◽

Subsurface Flow ◽

Typha Latifolia ◽

Two Stage ◽

Anaerobic Reactor ◽

Subsurface Flow Constructed Wetland ◽

Horizontal Subsurface Flow ◽

Cyperus Alternifolius ◽

Brewery Effluent

Abstract Background Agro-industrial wastewaters in Ethiopia cause severe environmental pollution problems. Research evidence showed that anaerobic reactors are good options for the treatment of these wastewaters. But, their final effluent does not meet the discharge standards. Conversely, a series stage horizontal subsurface flow constructed wetland (HSSFCW) system is encouraging for the polishing of anaerobic reactor effluents. However, its treatment efficiency is dependent on hydraulic residence time (HRT). Cyperus alternifolius and Typha latifolia-based wastewater treatment showed good removal efficiencies individually. However, data on their combined treatment effectiveness is negligible. Therefore, this study assesses HRT influences on the treatment effectiveness of a two-stage HSSFCW system planted with these two macrophytes for the polishing of anaerobic reactor brewery effluent. A series connected two-stage HSSFCW unit planted with Cyperus alternifolius and Typha latifolia was built to treat Kombolcha brewery anaerobic reactor effluent. Then, the macrophytes were endorsed to grow with continuous application of diluted brewery effluent from a reservoir tank using gravity force. After dense stand formation, the experiment was initiated to determine the influence of HRTs on the removal efficiency of a complete wetland system. The system was operated sequentially by supplying fixed influent inflow rates of 2791, 1395, 930, 698, and 558 L day−1, respectively, for 1, 2, 3, 4, and 5 days HRT. Both the influent and effluent of the two-stage HSSFCW system were analyzed following common procedures for main brewery pollutants. Result Results showed that as HRT increased from 1 to 5 days, the effluent pH and temperature were decreased along with enhanced pollutant removals ranging from 47.8–87.2%, 29.2–90.1%, 32.9–77.7%, 16.8–75.4%, and 18.4–76.8% with decreased influent mass loading rates ranging from 26.4–2.1, 64.5–7.3, 11.5–0.8, 5–0.6, and 3.8–0.4 gm−2 day−1, respectively, for total suspended solids, chemical oxygen demand, total nitrogen, total phosphorous and orthophosphate. However, better and steadier pollutant removals were achieved at higher HRTs. Conclusion For better nutrient removals, the 4 and 5 days HRT can serve as a good benchmark.

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