Reuse of grey water generated from high rise educational building

Dhiman, Vishal Kumar; Singh, Jagdeep; Kanoungo, Abhishek; Goyal, Ajay; Singh, Yadvendra

doi:10.1016/j.matpr.2022.09.053

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…A promising approach to wastewater treatment benefits microorganisms that have been immobilized in charcoal to treat various contaminants. Biochar-immobilized microorganisms can enhance the microbial metabolic capability, repeatedly employed ratio, microbial abundance, and so forth when associated with other biological treatment technologies (Dhiman et al, 2022). The capability of adsorption biochar, which depends on its physicochemical properties such as elemental composition, surface area, distribution of pore size, and surface functional groups, is directly related to its capability to eliminate inorganic and organic impurities from wastewater and these physicochemical characteristics, such as cation/anion exchange capability, depending on the type of feedstock, besides the method and environment accustomed in preparation (Enaime et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Tidal and vertical flow constructed wetland treatment for graywater modeling and reusing with biochar cadmium adsorption

Kanfade,

Shingare,

Suryawanshi

et al. 2023

Water Environment Research

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This study addresses a persistent environmental concern related to greywater discharge from households, highlighting its potential to contribute to increased pollution in water bodies. To mitigate this issue, the research explores the use of subsurface flow‐built wetlands, specifically focusing on the innovative application of constructed tidal and vertical flow wetlands (CTWFW) as wastewater treatment systems. The study not only evaluates the efficacy of these CTWFW systems but also delves into the crucial aspects of their operation and their interactions with the biological, physical, and chemical characteristics of greywater. A key innovation of this research is the investigation of zeolite's effectiveness and the utilization of perlite‐based plant species in both mixed and monoculture configurations to develop lab‐scale hybrid constructed wetlands (HCWs). These HCWs are designed for the removal of organic matter and nutrients from greywater, offering a sustainable and cost‐effective solution to this environmental challenge. The study also examines the dynamic processes involved in greywater treatment, emphasizing how the removal of parameters like Biological Oxygen Demand (BOD), nutrients, Total Suspended Solids (TSS), and disinfection efficiency can significantly impact the effectiveness of treatment systems. Furthermore, the research scrutinizes the intricate relationship between the treatment unit's dimensions and the specific criteria that need to be met for efficient greywater treatment. Intriguingly, the study tracks the changes in greywater composition and the treatment process over time. By conducting on‐site measurements of various physicochemical characteristics such as temperature, Dissolved Oxygen (DO), Electrical Conductivity (EC), turbidity, Total Dissolved Solids (TDS), and pH, the research offers a comprehensive understanding of the treatment system's performance and adaptability. The study dives into the microbial communities within the treatment systems, utilizing 16S rRNA amplicon sequencing to characterize the complex microbial ecosystem present in greywater. This approach sheds light on the interplay between microorganisms, physicochemical conditions, plant responses, substrate dynamics, and the production of microbial metabolites. It underscores the holistic nature of the research, encompassing various aspects of greywater treatment. Notably, the study explores the application of biochar in combination with the target heavy metal, cadmium (Cd), within constructed wetlands (CWs). This innovative approach aims to better understand the kinetics and isothermal adsorption of lead in the context of mouthwash residue, expanding the knowledge base in this critical area. The research findings are substantial, with remarkable removal efficiencies achieved for parameters like Total Suspended Solids (TSS), turbidity, Chemical Oxygen Demand (COD), nitrate, and phosphate. These results underscore the practicality and effectiveness of the proposed treatment methods. This holistic and pioneering research significantly advances the understanding of sustainable greywater treatment, offering valuable insights and practical solutions to mitigate water pollution concerns.

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Section: Introductionmentioning

confidence: 99%

Tidal and vertical flow constructed wetland treatment for graywater modeling and reusing with biochar cadmium adsorption

Kanfade,

Shingare,

Suryawanshi

et al. 2023

Water Environment Research

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show abstract

“…Educational buildings generate a considerable volume of grey water due to the vast number of floors. The effort for collection and purification of grey water, to make it appropriate for reuse, is considered as such an innovative strategy that simultaneously alleviates the environmental and economic concerns of water usage and helps reduce the alarming global water scarcity (Dhiman et al 2022). Many study cases in literature reported environmental, health and socioeconomic benefit analysis of grey water treatment and reuse in residential schools that are substantially higher than the internal and external costs through a life cycle perspective (Hourlier et al 2010;Mourad et al 2011;Nnaji et al 2013;Patil et al 2016;Platzer et al 2016;Chaabane et al 2017;Rodríguez et al 2020;Xu et al 2021).…”

Section: Introductionmentioning

confidence: 99%

Investigation of mechanisms of an upflow-downflow siliceous sand filtration system for surfactants bathroom grey water treatment

Chaabane

Riahi

Anibi

et al. 2022

Water Science and Technology

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Sustainable Decentralized Wastewater Treatment Systems (DEWATS) at the local level are considered as a smart alternative for small communities particularly in arid areas. The present study examines the mechanisms of an upflow-downflow Siliceous Sand (SS) filtration system involved in surfactants bathroom grey water treatment. In order to get a better understanding of the mechanisms involved in surfactants removal, particle size distribution and Fourier Transform Infrared (FTIR) Spectroscopy of the SS particles were performed. Optimization of the upflow-downflow SS filtration system, operated following operational conditions of Hydraulic Load Rate (HLR) and SS amounts, results indicates an average removal efficiency (ARE) of 93.7% reached with respect to surfactants removal. Results showed also that the resulting silicate materials react with surfactants in a cooperative assembly process involving the interaction of SS particles with surfactants aggregates. Brunauer, Emmett and Teller (BET) surface area, pore volume (Vp), and pore size were found to be significantly reduced post-filtration with respectively 3.39%, 24.31%, and 21.86% reduction. From FTIR spectroscopy analysis of the Sulfonates, Silanol and Silane functional groups appear to be involved in mesoporous constructed micelle organization for surfactants removal. Such geo-materials could be green and sustainable for various applications in water and environmental engineering.

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Feasibility and optimizing assessments on biogas and biomethane productions from E. coli fermenter effluent

Ponnambalam

Shen

Ramaraj

et al. 2023

Biomass and Bioenergy

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Reuse of grey water generated from high rise educational building

Cited by 5 publications

References 19 publications

Tidal and vertical flow constructed wetland treatment for graywater modeling and reusing with biochar cadmium adsorption

Tidal and vertical flow constructed wetland treatment for graywater modeling and reusing with biochar cadmium adsorption

Investigation of mechanisms of an upflow-downflow siliceous sand filtration system for surfactants bathroom grey water treatment

Feasibility and optimizing assessments on biogas and biomethane productions from E. coli fermenter effluent

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