TIME IN AND FOR NATURE-BASED SOLUTIONS. NO QUICK FIX SOLUTIONS FOR COMPLEX ECOLOGICAL AND SOCIAL PROCESSES

Nature-Based Solutions, Год журнала: 2025, Номер unknown, С. 100219 - 100219

Опубликована: Янв. 1, 2025

Язык: Английский

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Nutrient treatment of greywater in green wall systems: A critical review of removal mechanisms, performance efficiencies and system design parameters

Journal of Environmental Management, Год журнала: 2023, Номер 345, С. 118917 - 118917

Опубликована: Сен. 7, 2023

Greywater has lower pathogen and nutrient levels than other mixed wastewaters, making it easier to treat reuse in nature-based wastewater treatment systems. Green walls (GWs) are one type of solutions (NBS) that evolving design support on-site low-cost greywater treatment. GWs involves interacting complex physical, chemical, biological processes. Design operational considerations such green technologies must facilitate these pivotal processes achieve effective This critical review comprehensively analyses the scientific literature on removal from GWs. It discusses efficiency different GW types. Total nitrogen ranges 7 91% indirect facades (IGF), 48–93% for modular living (MLW), 8–26% continuous (CLW). phosphorus 67% IGF 2–53% MLW. The also specific mechanisms orchestrated by vegetation, substrates, biofilms understand their role within effects key parameters removal, including substrate characteristics, vegetation species, biodegradation, temperature, operating as irrigation cycle hydraulic loading rate, assessed. Results show greater depth enhances facilitating efficient filtration, straining, adsorption, various at varying depths. Particle size pore characteristics They can significantly impact effectiveness physicochemical providing sufficient pollutant contact time, active surface area, influencing saturation redox conditions. Hydraulic rate (HLR) impacts time An HLR between 50 60 mm/d during growing season provides optimal removal. Furthermore, was higher when watering cycles were customized types drought tolerances.

Язык: Английский

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Removal of hydrophilic, hydrophobic, and charged xenobiotic organic compounds from greywater using green wall media

Water Research, Год журнала: 2023, Номер 242, С. 120290 - 120290

Опубликована: Июнь 29, 2023

Green walls offer a novel on-site approach for greywater treatment and reuse in densely build urban environments. However, they need to be engineered effective removal of wide range emerging contaminants such as xenobiotic organic compounds (XOCs), which may present due extensive use personal care products household chemicals. This study used laboratory column design batch experiments investigate the performance three lightweight green wall media (coco coir, zeolite, perlite) their mixture different combinations twelve XOCs, covering hydrophilic, hydrophobic, charged pollutants greywater. The were designed assess targeted XOCs under operational condition (i.e., hydraulic loading, infiltration rate, drying) uncover dominant mechanisms removal. Results showed excellent (>90%) all coco coir mix columns at start experiment fresh initial 2 pore volume (PV) dosing). highly hydrophobic positively remained high conditions, while hydrophilic negatively exhibited significant reduction after 25 PV 50 PV, possibly low adsorption affinity electrostatic repulsion from media. effect rate on was not significant; however, higher achieved 2-weeks drying columns. mechanism most found adsorption, few acetaminophen atrazine) both biodegradation processes. While findings promising prospects unvegetated removing greywater, long term studies vegetated systems are needed understand any synergetic contribution plants these XOCs.

Язык: Английский

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Performance of a felt based living wall with greywater irrigation using different indoor ornamental species

Ecological Engineering, Год журнала: 2025, Номер 212, С. 107524 - 107524

Опубликована: Янв. 21, 2025

Язык: Английский

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Long-term performance of eight green wall plants in removing xenobiotic organic compounds from greywater across varied operational conditions

Journal of Water Process Engineering, Год журнала: 2025, Номер 71, С. 107142 - 107142

Опубликована: Фев. 5, 2025

Язык: Английский

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Delineating the fundamental attributes and traits of nature-based solutions in wastewater management

Journal of Environmental Management, Год журнала: 2025, Номер 380, С. 124811 - 124811

Опубликована: Март 18, 2025

Язык: Английский

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Resilience to flow variability of an open-air green wall for greywater treatment

Journal of Environmental Management, Год журнала: 2025, Номер 380, С. 125114 - 125114

Опубликована: Март 31, 2025

Water management in urban areas is challenged by climate change and increasing population, the reduction of water consumption becoming a major issue. Thus, domestic greywater (GW) can be valuable source for non-potable purposes, coupled with benefits provided nature-based treatment approach. In this context, green walls have been proposed GW local reuse, hence coupling advantage reuse The amount available linked occupancy habits inhabitants, but there still limited knowledge on impact variations flow rate efficiency health wall. Therefore, study aims to test resilience modular wall over 7 months. experiments were performed two configurations fed synthetic GW: one was constant (equivalent daily production per capita) as reference, while other received variable schedule. schedule included three phases: underload (-50 %), overload (+50 %) maintenance flow. Input output analysed evaluate performances fourteen physical-chemical parameters. Results showed that neither nor caused any detrimental effect or plants. Overload conditions slight decrease (e.g., 93.8 % BOD5 compared 100 recorded control configuration), plants exhibited visual signs distress. However, these negative effects disappeared after re-establishing standard rate. These findings demonstrated inflow variations. results provide useful indications application important design guidelines, terms maximum values organic loading (∼20 gBOD5 m-2 d-1) oxygen transfer (∼15 gO2 d-1), focusing building capacity driving parameter.

Язык: Английский

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Nature-based solutions and buildings: A review of the literature and an agenda for renaturing our cities one building at a time

Nature-Based Solutions, Год журнала: 2023, Номер 5, С. 100106 - 100106

Опубликована: Дек. 24, 2023

A closer look at the built environment shows that opportunities lie in transforming buildings with nature-based solutions for fostering climate resilience. To understand potential of contributing to cities, we conducted a systematic literature review synthesize evidence provided benefits implemented on their roofs and facades. Our goal is highlight findings about co-benefits real-life case studies. After screening selection, 222 reviewed research papers support there confidence resilience performance green walls, roofs, living walls provide, heat indirectly social-ecological justice, especially when they are installed old buildings. show other recorded include provision vegetation, habitat biodiversity enhancement, strong water retention purification. We also report design characteristics which recommended Green were well-documented it underlines need more studies diverse NBS. From synthesis state art, propose further required extend noise reduction, air pollution entrapment filtering, carbon sequestration. In our paper, found most important knowledge gap future holistic perspectives designing NBS

Язык: Английский

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Vertical Green Wall Systems for Rainwater and Sewage Treatment

Sustainability, Год журнала: 2024, Номер 16(17), С. 7593 - 7593

Опубликована: Сен. 2, 2024

Rainwater and sewage are important pollution sources for surface water bodies. Vertical greening systems (VGSs) extensively employed these wastewater treatments due to the green sustainable characteristics, as well their high-efficiency in pollutant (organic matter, nitrogen, phosphorus) removal. At present, more VGSs designed with buildings, serving city ecosystems. This study provides an overview of different kinds rain treatment, emphasizing types, design, mechanisms, selection plants, growth substrate. Plants play a crucial role removal, plants usually obtain efficiencies treatment. Climbing ornamental fast rates priority selections VGSs, including Canna lilies, Jasmine, Grape vine, Boston ivy, Pittosporum tobira, Pelargonium australe, Mentha aquatica, Lythrum salicaria. The substrate is most critical part VGS, which plays regulating flow, supporting plant growth, promoting biofilm filtering pollutants, adsorbing nutrients. single either has blockage problem or short holding time. Therefore, number studies have mixed substrates integrated advantages form complementary effect, thereby improving overall purification efficiency stability. Novel (sand, spent coffee grounds, date seeds, grinds, reed-based, etc.) coco coir, light-weight expanded clay, growstone, perlite at certain ratio optimum treatment performance. Moreover, clay show significant health statuses than zeolite soil. Operating parameters also influences on review theoretical technical support designing sustainable, environmentally friendly, cost-effective treating rainwater sewage.

Язык: Английский

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Improving runoff quality in vertical greenery systems: Substrate type outweighed the effect of plant growth promoting microbes

The Science of The Total Environment, Год журнала: 2023, Номер 904, С. 166718 - 166718

Опубликована: Сен. 3, 2023

Due to limited urban green spaces and catchments, researchers are exploring the capacity of vertical greenery systems (VGSs) in stormwater management as complementary strategies. While literature acknowledges significant impacts vegetated roof substrates on stormwater, comparing capacities organic non-organic for VGSs remains largely unexplored. It is thus essential gather empirical evidence enhance VGSs. Here, we report impact installation factors (substrate type plant growth-promoting microbe (PGPM) inoculation) environmental (simulated rainwater quantity substrate moisture) an innovative VGS concentrations total loads 15 elements (N, P, Al, V, Cr, Fe, Mn, Co, Ni, Cu, Zn, As, Se, Cd, Pb) runoff. Results showed that was most influential factor: were significantly higher from a reed-based with high matter than sandy loam substrate. Substrate also had profound interactive effects other factors. For instance, PGPM inoculation reduced N, regardless type, Pb only. In addition, primarily loads, yet little effect concentrations. interacted simulated moisture: example, substrate, but increased while remained constantly low under various quantities. High antecedent moisture both elements. We conclude leaching can be contained via selection, maintenance moisture, beneficial inoculation.

Язык: Английский

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