Green/sustainable treatment of washing machine greywater for reuse in the built environment

Rodrigues, Karen Campos; Morais, Lucas Salomão Rael de; Paula, Heber Martins de

doi:10.1016/j.clet.2022.100410

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…Several authors have proposed the use of MO as a natural coagulant in greywater; for example, Chitra & Muruganandam [36] used dehydrated seeds and evaluated the removal of turbidity in synthetic (85.6 NTU) and real (92.7 NTU) greywater, where they found efficiencies of 85.3% in synthetic and 83.7% in real greywater and higher efficiency in pH between 6 and 7. On the other hand, Rodriguez et al [37] used dehydrated seeds to evaluate the removal of turbidity in greywater (73.2-99.1 NTU) from washing machines, from the experiments performed, they found removals of 96.22% with optimum pH between 6.8 and 7.2. Kwabena Ntibrey et al [38] in their experiment with greywater from schools were able to determine turbidity (227.8 -287.4 NTU) removals of 97.4%.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Three Natural Coagulant from Moringa Oleifera Seed for the Treatment of Synthetic Greywater

Peña-Guzmán

Ortiz-Gutierrez

2022

Civ Eng J

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The scarcity of water has become a growing problem worldwide. The search for new sources has therefore intensified, and one of these sources is greywater. The objective of this article is to evaluate the effectiveness of three different coagulants obtained from Moringa oleiferaseed (seed husk, ground seed, and degreased) in synthetic greywater. The methodology is planned in stages; in the first stage, these seeds were selected, unsheathed, and dried in the sun for 24 hours, and the coagulant was synthesized by a 1 M NaCl solution. In the second stage, the synthetic greywater was prepared in a laboratory and included personal cleaning products and additional chemical components. Finally, a statistical test was employed to evaluate the removal of turbidity and the incidence and behavior of the turbidity, pH, alkalinity, and dissolved oxygen over seven periods and the type of coagulant. It was found that the coagulant degreased obtained the highest percentage of removal (85%) and the coagulant from seed husk had the lowest efficiency with 75%. On the other hand, it was found that parameters such as pH and dissolved oxygen depend on the type of coagulant, while conductivity and alkalinity do not depend on time or the type of coagulant. Doi: 10.28991/CEJ-2022-08-12-013 Full Text: PDF

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Section: Introductionmentioning

confidence: 99%

Evaluation of Three Natural Coagulant from Moringa Oleifera Seed for the Treatment of Synthetic Greywater

Peña-Guzmán

Ortiz-Gutierrez

2022

Civ Eng J

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“…There are numerous studies based on numerical data and studies on typologically different buildings [37,39], while contemporary publications, including groups of works devoted to rainwater harvesting, are mostly focused on the issue of the proper determination of the volume of collected rainwater [35,36,41], quantitative issues [42] or life cycle assessment (LCA) of these systems [43]. Similarly, papers on the use of greywater, in terms of design, are limited to indoor installations [44], or methods of treating these waters prior to circulation [45], usually referring to pre-treatment methods. There is an apparent lack of available references relating to conditions for the simultaneous use of rainwater and greywater at the design stage of buildings.…”

Section: Discussionmentioning

confidence: 99%

Sustainable Water Management in a Krakow Housing Complex from the Nineteen-Seventies in Comparison with a Model Bio-Morpheme Unit

et al. 2022

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Cities grow through the addition of new housing structures, but the existing tissue is also modernized. Krakow, like any city with a historical origin, has typologically varied housing tissue. A large area of the city is occupied by multi-family panel-block housing estates which are being revitalised and the scope of this revitalization should include sustainable design elements. This paper determines the potential for implementing integrated water management, that utilizes rainwater in an existing basic urban unit that is a housing estate from the nineteen-seventies, located in Krakow (Poland), in conjunction with the Bio-Morpheme—the fractal reference model unit. The parameters of the Bio-Morpheme were established by earlier research as the optimum for a housing unit with regards to the circular economy and improving water use efficiency. The study covers the need to improve the quality of the housing environment, linked with the presence of natural elements, including a water reservoir, in the direct vicinity of the development. The analyses explored the potential to employ integrated water management with rainwater reuse in a basic urban unit (Krakow-Morpheme) and then compared the findings with the outcomes obtained by the proposed Bio-Morpheme complex. The results indicate that the potential to achieve a lower demand of water from the water supply system and to lower wastewater production were obtained, with a simultaneous opportunity to lay out an open water reservoir into the Krakow-Morpheme urban interior for improvement of the health value and well-being of inhabitants.

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Selection of Greywater Reuse Options Using Multi-criteria Decision-making Techniques

Daniel

Ahammed

Shaikh

2023

Water Conserv Sci Eng

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Green/sustainable treatment of washing machine greywater for reuse in the built environment

Cited by 5 publications

References 28 publications

Evaluation of Three Natural Coagulant from Moringa Oleifera Seed for the Treatment of Synthetic Greywater

Evaluation of Three Natural Coagulant from Moringa Oleifera Seed for the Treatment of Synthetic Greywater

Sustainable Water Management in a Krakow Housing Complex from the Nineteen-Seventies in Comparison with a Model Bio-Morpheme Unit

Selection of Greywater Reuse Options Using Multi-criteria Decision-making Techniques

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