geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Constructed wetlands for river reclamation: Experimental design, start-up and preliminary results


, : Constructed wetlands for river reclamation: Experimental design, start-up and preliminary results. Bioresource Technology 55(2): 157-162

The use of constructed wetlands for the treatment of secondary effluents, to allow for safe river discharge, was the subject of a research project carried out at the Alexander River basin in Israel. Four pilot-scale units, each about 100 m-2, were built:two were designed for subsurface flow with gravel as the medium and two units were designed for free water surface with local soil as the medium. Secondary treated effluent from the Netanya sewage treatment plant was used as the influent. To support the field study and broaden the understanding of the processes involved, two smaller concrete units, 10 m-2 each, were built at the Technion site. Results from the first 6 months of the constructed wetlands operation at the Alexander River site and the Technion site showed that the removal of BOD and SS was very efficient under all the conditions studied: retention time of 4-15 days (hydraulic loading of 20-80 m-3/0.1 hectare/day) and BOD loading of 1-5.5 kg BOD/0.1 hectare/day. BOD and SS concentrations in treated liquids were always lower than 20 mg/l and most of the time lower than 10 mg/l. However, the removal efficiency of the nitrogen and phosphorous compounds varied within a very wide range; from 95% to as low as zero removal.

US$19.90

DOI: 10.1016/0960-8524(95)00164-6


Other references

Messhia, F.S.; El-Domeiri, A.; Sproat, H.F., 1979: Effects of lithium and cesium salts on sarcoma-I implants in the mouse. Neurobehavioral Toxicology 1(1): 27-31

Mohseni-Bandpei, M.Ali.; Rahmani, N.; Halimi, F.; Farooq, M.Nazim., 2017: The prevalence of low back pain in Iranian dentists: An epidemiological study. Low back pain (LBP) is one of the most common and prevalent work-related conditions. The aim of this study was to estimate the prevalence and risk factors associated with LBP in dentists and to analyze the association between individual and occupa...

Doss M.; Verspohl F., 1981: The glucose effect in acute hepatic porphyrias and in experimental porphyria. The glucose effect was investigated in human acute hepatic porphyrias (acute intermittent porphyria, variegate porphyria, coproporphyria and porphobilinogen synthase defect porphyria) and in avian liver cells. Eight patients (7 women) with acute a...

Douglas, T.J.; Paleg, L.G., 1978: AMO 1618 effects on incorporation of 14C-MVA and 14C-acetate into sterols in Nicotiana and Digitalis seedlings and cell-free preparations from Nicotiana. Incorporation of radioactivity from 14C-acetate and 14C-mevalonic acid into sterols and sterol precursors in tobacco was inhibited by AMO 1618 [ACPC]; differing patterns of accumulation were obtained with the 2 precursors, suggesting more than one...

Inamati, S.S.; Devar, K.V.; Krishna, A., 2007: Floristic composition along altidudinal gradation in Devimane, Western Ghats, Karnataka. A field experiment was conducted in Devimane, Western Ghats (Karnataka) to find out the floristic composition. This paper deals with floristic composition of the study area, which composed of 43 families represented by 130 species across all four...

Akiyama, S., 1970: Review for the 2d year student. Health legislation. Kango Kyoshitsu 14(3): 29-31

Rácz, M.L.; Candeias, J.A.; Trabulsi, J.R.; Murahowski, J., 1988: Diarrheal diseases in Brazil: clinical features of rotavirus-associated gastroenteritis in children. This study was undertaken to detect the presence of rotavirus in the stools of children with gastroenteritis, using the enzyme-linked-immunosorbent assay (ELISA), and to compare the signs and symptoms of rotavirus-positive and -negative children....

Osmond, H., 1954: Four International Conferences. Canadian Medical Association Journal 71(2): 168-169

Wu, S.; Yang, J.; Wu, R., 2006: Multilocus linkage disequilibrium mapping of epistatic quantitative trait loci that regulate HIV dynamics: a simulation approach. The time-dependent change of HIV particle load, i.e. HIV dynamics, is likely to be controlled by a multitude of quantitative trait loci (QTL) that interact with each other as well as with various developmental and environmental factors in a coord...

Jöhr, N.; Tschopp, M.; Hollbach, N.; Gerull, S.; Halter, J.; Klenk, L.; Goldblum, D., 2016: Optic neuritis after influenza vaccination in a patient after stem cell transplantation. Klinische Monatsblatter für Augenheilkunde 232(4): 484-486