constructed wetlands

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constructed wetlands

A system of artificially created marshy-type areas of vegetation with frequent flooding, designed to treat wastewater through natural biological processes. The Environmental Protection Agency is a strong proponent of this method of cleaning water and has many additional resources on its Web site at www.epa.gov;search on “constructed wetlands.”

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To stop the discharge of sewage into the river, a project to treat 0.2 million litres per day through constructed wetland technology has been initiated.
This research focused on the treatment of Majeed Keerio village municipal wastewater through horizontal flow constructed wetland system.
NWTP is considered to be the largest industrial constructed wetland system in the world, consisting of a series of sloping reed fields and evaporation ponds.
Constructed wetland systems are used around the world for treating different type of wastewater (Zhang et al., 2014; Wang et al., 2016b).
Meanwhile, commenting on the meeting today, Wan Junaidi said the ministry was considering using constructed wetland approach as a long-term alternative to address water pollution.
Therefore, in this study, the water and soil samples, collected from a free surface flow constructed wetland, were assessed by Illumina MiSeq high-throughput method, the objective was to investigate the microbial community structures and compare the microbial abundance differences between water and soil, including bacteria and archaea.
In many studies, the successful use of constructed wetland (CW) has been verified as a low cost alternative for the treatment of wastewater (Matos et al., 2009), including runoff (Mustafa et al., 2009; Maillard et al., 2011).
Removal of fluoride and chloride by horizontal-flow constructed wetland mesocosms with polyculture and monoculture ornamental plants.
Researchers have noted that treatment processes of runoff in a constructed wetland are influenced by a range of hydraulic factors, which can vary during a rainfall event, and their influence on treatment can also vary as the event progresses.
Regarding BOD5 removal, close to 80% was observed; wetland H1 had a concentration of 44.40 mg/L, wetland H2 had a concentration of 49.60 mg/L, and wetland H3 had a concentration of 52.60 mg/L, with coefficients of variation of 15%, 28%, and 67%, respectively, showing that wetland three exhibited a larger dispersion of the data (Table 2).The removal of BOD5 in the constructed wetland is mainly due to the persistence of stable levels of heterotrophic microorganisms in the influent, effluent, and gravel (Cooper et al., 1996; cited in Delgadillo et al., 2010) (Figure 1B).
This study remediated contaminated storm-water runoff from a bio-oil conversion facility through a simulated constructed wetland. A six-phase series of constructed wetlands was contaminated with varying dilution levels of bio-oil process water.