Greywater treatment by ornamental plants and media for an integrated green wall system

Pradhan, Snigdhendubala; Al-Ghamdi, Sami G.; Mackey, Hamish R.

doi:10.1016/j.ibiod.2019.104792

Cited by 37 publications

(14 citation statements)

References 24 publications

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“…[ 15,17 ] The pH of greywater was close to neutral, with a similar pattern reported in the literature. [ 18,19 ] From the nutrients concentration point of view, greywater is of medium strength, comparable with studies reported in the literature [ 20 ] except for phosphate. However, a similar phosphate concentration was reported by Gattringer et al [ 21 ] but was higher than reported by Prajapati et al [ 15 ] The current raw greywater quality does not comply with discharge into the land as per the Indian regulatory standards, [ 22 ] indicating the need for treatment before discharging.…”

Section: Resultssupporting

confidence: 85%

Sustainable ternary treatment system for greywater and potential reuse

et al. 2022

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Adopting a greywater treatment system that provides economical, effective, and sustainable treated greywater over a longer span helps to address water scarcity. The present study focuses on treating greywater generated from hostels using a floating plant treatment system (FPTS) planted with water hyacinth. The additional units, a sand filter and an activated charcoal filter, were attached in series to FPTS to improve the treated greywater quality. The treatment system was operated for 90 days with daily monitoring of influent and effluent parameters. The treatment performance was evaluated based on the removal efficiency for total suspended solids (TSS), turbidity, chemical oxygen demand (COD), ammonia, sulphate, phosphate, and faecal coliform (FC) of 74.81% ± 5.74%, 99.76% ± 0.05%, 95.70% ± 4.10%, 99.16% ± 2.08%, 48.22% ± 1.80%, and 100%, 97.27% ± 1.48%, respectively. The study showed that the system effectively treats greywater, making it suitable for non‐potable purposes on educational institution's campuses.

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Section: Resultssupporting

confidence: 85%

Sustainable ternary treatment system for greywater and potential reuse

et al. 2022

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“…Pradhan, Al‐Ghamdi, and Mackey (2019) evaluated the removal of nutrients and organic compounds from graywater used in a planted green wall system. It was found that coco coir, spent coffee grounds, and sand provided the best removal efficiency through the assessment of microbial degradation.…”

Section: Treatment Technologiesmentioning

confidence: 99%

Distributed treatment systems

Sheehan

Martinez

et al. 2020

Water Environment Research

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This section presents a review of the scientific literature published in 2019 on topics relating to distributed treatment systems. This review is divided into the following sections: constituent removal, treatment technologies, planning and treatment management, and other topics. © 2020 Water Environment Federation • Practitioner points • Highlights changes and innovation in removal techniques and technologies in water treatment. • Reviews management systems of distributed treatment systems. • Discusses point-of-use treatment systems.

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“…The constructed wetland has been recognized in several recent investigations as an environment-friendly wastewater treatment alternative [74][75][76][77][78] and as a sustainable means of treating stormwater. Compared to centralized systems, they have proved to be financially more advantageous in construction, operation, and maintenance [81].…”

Section: Introductionmentioning

confidence: 99%

Staircase Wetlands for the Treatment of Greywater and the Effect of Greywater on Soil Biodiversity

Qadir¹,

Pino²,

Brambilla³

et al. 2023

Preprint

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Fresh water is an increasingly scarce resource in both urban and rural developments. As a response to this challenge, non-potable water reuse is on the rise. This research explored a potential off-grid system for water purification, consisting of a staircase wetland with terracotta pot plants working as a filter for greywater. The study further investigated the physicochemical properties of the greywater and the soil before and after the wetland purification. Results showed that the filtered water satisfied all requirements for water reuse, e.g., pH, turbidity, and total coliforms. The research then uniquely investigated the effect of greywater on the soil biodiversity and soil biomass using soil DNA extraction and the tea bag index testing method. The filtered greywater absorbed by soil decomposed the soil faster and stabilized it better compared to tap water-absorbed soil or unfiltered greywater. The DNA generation sequencing revealed no significant differences in alpha diversity between control and treatment samples. The beta diversity differences were significant. This nature-based solution can lead to reduced load on the sewage system, resulting in less wastewater generation.

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Greywater treatment by ornamental plants and media for an integrated green wall system

Cited by 37 publications

References 24 publications

Sustainable ternary treatment system for greywater and potential reuse

Sustainable ternary treatment system for greywater and potential reuse

Distributed treatment systems

Staircase Wetlands for the Treatment of Greywater and the Effect of Greywater on Soil Biodiversity

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