Removal of chemical and microbial contaminants from greywater using a novel constructed wetland: GROW

Ramprasad, C.; Smith, Chris Shirley; Memon, Fayyaz Ali; Philip, Ligy

doi:10.1016/j.ecoleng.2017.05.022

Cited by 95 publications

(59 citation statements)

References 34 publications

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“…Unlike BOD 5 , chemical oxygen demand (COD) is a measurement of the total amount of organic matter that can be chemically oxidized to inorganic products. Several studies report COD removal in CWs of between 85% and 95% [4,6,8,11]. The COD content at the inlet was ranging from 119mg/L to 413mg/L.…”

Section: Measurement Of the Performance Of The Vertical Systemmentioning

confidence: 99%

Effectiveness of vertical system planted with Renealmia Alpinia used in sub-humid climate to treat urban wastewater: a case study in the pilot site Bouregreg-ONEE RABAT

Kabbour¹,

Mouhir²,

Laaouan

et al. 2020

E3S Web Conf.

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Wastewater treatment is a global environmental issue. In Morocco, 45% of wastewater is treated before its discharge. Their impact on the environment is further aggravated by the degradation or absence of the sewerage liquid system. The constructed wetlands are alternative systems for the treatment of wastewater. Therefore, the aim of this study was to evaluate period adaptation (60 days) of a substitute plant Renealmia alpinia, and its potential for treating wastewater generated by the campus of the National Office of Electricity and Drinking Water (ONEE) of Rabat. A pilot experimental setup (tank) was constructed. The pumping rate was adjusted to 0.7 m3 / h while the density of R. alpinia planting on the surface of the filter massif was 6 plants/m2. At the end of monitoring, planting density was superior of 30, and R.alpinia plants have completed this phase clearly without any disease symptoms present. The treated water obtained from outlet and wastewater were analysed for various water quality parameters such as Biological oxygen demand (BOD), Chemical oxygen demand (COD) and Suspended solids (SS). The vertical system is able to remove 49 % of BOD, 80 % of COD, 88 % of SS. The results obtained are within the permissible limits for domestic rejects according to National legislation of Morocco. Overall results demonstrated that the selected plant posses a high potential for treating wastewater, it could represent a sustainable and inexpensive biotechnological strategy for untreated wastewater.

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Section: Measurement Of the Performance Of The Vertical Systemmentioning

confidence: 99%

Effectiveness of vertical system planted with Renealmia Alpinia used in sub-humid climate to treat urban wastewater: a case study in the pilot site Bouregreg-ONEE RABAT

Kabbour¹,

Mouhir²,

Laaouan

et al. 2020

E3S Web Conf.

View full text Add to dashboard Cite

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“…Alternatively, Thanh et al employed five consecutive channels to decrease short circuiting effects [14]. Short circuiting was also reduced in the construction of a green rooftop incorporating troughs fitted with baffles and weirs to promote a plug flow regime and wastewater contact with substrata in the Green Roof-top Recycling System (GROW) [15].…”

Section: Substrata Considerationsmentioning

confidence: 99%

Wetland Roofs as an Attractive Option for Decentralized Water Management and Air Conditioning Enhancement in Growing Cities—A Review

Zehnsdorf

Willebrand

Trabitzsch

et al. 2019

Water

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While constructed wetlands have become established for the decentralized treatment of wastewater and rainwater, wetland roofs have only been built in isolated cases up to now. The historical development of wetland roofs is described here on the basis of a survey of literature and patents, and the increasing interest in this ecotechnology around the world is presented. In particular, this article describes the potential for using wetland roofs and examines experience with applications in decentralized water management in urban environments and for climate regulation in buildings. Wetland roofs are suitable as a green-blue technology for the future—particularly in cities with an acute shortage of unoccupied ground-level sites—for the decentralized treatment of wastewater streams of various origins. Positive “side effects” such as nearly complete stormwater retention and the improvement of climates in buildings and their surroundings, coupled with an increase in biodiversity, make wetland roofs an ideal multi-functional technology for urban areas.

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“…The various technologies have been examined for GW treatment like coagulation and magnetic ion exchange resin [4], flocculation [5], septic tank followed by intermittent sand filter [6], a moving bed biofilm reactor [7], trickling filters with suspended plastic media [8], slow sand filter and slate waste followed by granular activated carbon [9], drawer compacted sand filter [10], pelletised mine watersludge [11], aerobic attached-growth biomass [12], green roof-top water recycling system constructed wetland [13], biofilter system [14], compact hybrid filter systems [15], a physical treatment system containing coagulation, sedimentation, sand filtration, granular activated carbon filtration, and disinfection [16], and anaerobic filter followed by UV disinfection [17]. Recently, the evolution of greywater recycling operations has been from traditional treatment technologies into more environmentally friendly treatment systems [18,19].…”

Section: Introductionmentioning

confidence: 99%

Clustering the Adsorbents of Horizontal Series Filtration in Greywater Treatment

2020

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One of the important alternative water resources for non-potable purposes is greywater (GW), which must be cleaned of contaminants. In this regard, the clustering analysis of materials consisting of sand (S), zeolite (Z), peat (P) and granular activated carbon (GAC) within a horizontal series filter (HSF) was used for removal of chemical oxygen demand (COD), biochemical oxygen demand (BOD), total dissolved solids (TDS), and turbidity in GW taken from the Fasa University Student Hostel, Iran. The hierarchical clustering technique was applied to classify the adsorbents. The findings indicated that there were significant differences (more than 95%) between these materials. According to the similarity of level 95%, for COD, BOD, TDS, and turbidity removal, these adsorbents could be separately clustered in three, three, two, and three clusters, respectively. In addition, by considering the simultaneous changes of COD, BOD, TDS, and turbidity together, these adsorbents could be clustered in three different clusters. This paper proposed an efficient method to select the best combination of adsorbents for eliminating of COD, BOD, TDS, and turbidity from GW. Generally, based on the quality of treated greywater and literature, reusing greywater can be implemented for agriculture, artificial recharge of aquifers, desertification, and preventing the dust creation in arid areas such as southern Iran.

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Removal of chemical and microbial contaminants from greywater using a novel constructed wetland: GROW

Cited by 95 publications

References 34 publications

Effectiveness of vertical system planted with Renealmia Alpinia used in sub-humid climate to treat urban wastewater: a case study in the pilot site Bouregreg-ONEE RABAT

Effectiveness of vertical system planted with Renealmia Alpinia used in sub-humid climate to treat urban wastewater: a case study in the pilot site Bouregreg-ONEE RABAT

Wetland Roofs as an Attractive Option for Decentralized Water Management and Air Conditioning Enhancement in Growing Cities—A Review

Clustering the Adsorbents of Horizontal Series Filtration in Greywater Treatment

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