Recent advancement in water quality indicators for eutrophication in global freshwater lakes

Environmental Research Letters, Год журнала: 2023, Номер 18(6), С. 063004 - 063004

Опубликована: Апрель 26, 2023

Abstract Eutrophication is a major global concern in lakes, caused by excessive nutrient loadings (nitrogen and phosphorus) from human activities likely exacerbated climate change. Present use of indicators to monitor assess lake eutrophication restricted water quality constituents (e.g. total phosphorus, nitrogen) does not necessarily represent environmental changes the anthropogenic influences within lake’s drainage basin. Nutrients interact multiple ways with climate, basin conditions socio-economic development, point-source, diffuse source pollutants), systems. It therefore essential account for complex feedback mechanisms non-linear interactions that exist between nutrients ecosystems assessments. However, lack set holistic understanding challenges such assessments, addition limited monitoring data available. In this review, we synthesize main freshwater basins only include but also sources, biogeochemical pathways responses emissions. We develop new causal network (i.e. links indicators) using DPSIR (drivers-pressure-state-impact-response) framework highlights interrelationships among provides perspective dynamics basins. further review 30 key drivers pressures seven cross-cutting themes: (i) hydro-climatology, (ii) socio-economy, (iii) land use, (iv) characteristics, (v) crop farming livestock, (vi) hydrology management, (vii) fishing aquaculture. This study indicates need more comprehensive systems, guide expansion networks, support integrated assessments manage eutrophication. Finally, proposed can be used managers decision-makers realistic targets sustainable management achieve clean all, line Sustainable Development Goal 6.

Язык: Английский

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Utilization Management to Ensure Clean Water Sources in Coastal Areas

Journal of Human Earth and Future, Год журнала: 2023, Номер 4(1), С. 23 - 35

Опубликована: Март 1, 2023

Coastal communities utilize tidal water sources; existing surface does not meet clean standards, and are greatly affected by current use. Managing sources to the needs of community is very difficult obtain, so research needed determine quality, quantity, distance standards. This study aims sources. used a descriptive qualitative approach, observation method, survey, questionnaire, documentation. Good source management will ensure that everyone has enough water. October's highest potential Q = 61.96 m3/s April's low 1.02 m3/s, Qt groundwater 0.12 lowest 0.05 m3/s. Water availability 21.15 with domestic demand rate 0.127 0.021 non-domestic. A suitable compliant located at point 5 9 km from location coastal area, 87% quality conditions Temperature, pH, NO3, NO2, TN, COD, BOD, Chlo-a standard value obtained 0.2 mg/l, indicating condition contaminated safe. challenges prudent use management. Nature-based littoral zone enhances quality. Pollution management, sustainable use, involvement safeguard habitats, biodiversity, Doi: 10.28991/HEF-2023-04-01-03 Full Text: PDF

Язык: Английский

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Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

Frontiers in Energy Research, Год журнала: 2021, Номер 9

Опубликована: Апрель 1, 2021

Wastewater is not a liability, instead considered as resource for microbial fermentation and value-added products. Most of the wastewater contains various nutrients like nitrates phosphates apart from organic constituents that favor growth. Microalgae are unicellular aquatic organisms widely used treatment. Various cultivation methods such open, closed, integrated have been reported microalgal to treat recovery simultaneously. Microalgal growth affected by factors sunlight, temperature, pH, affect rate microalgae. can consume urea, phosphates, metals magnesium, zinc, lead, cadmium, arsenic, etc. their reduces biochemical oxygen demand (BOD). The biomass produced during treatment be further produce carbon-neutral products biofuel, feed, bio-fertilizer, bioplastic, exopolysaccharides. Integration with bio-refinery only solves problem but also generates revenue supports sustainable circular bio-economy. present review will highlight current advanced integrate microalgae complete reclamation industrial sources utilization compound production. Furthermore, pertaining challenges briefly discussed along techno-economic analysis pilot-scale projects worldwide.

Язык: Английский

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Algae and bacteria consortia for wastewater decontamination and transformation into biodiesel, bioethanol, biohydrogen, biofertilizers and animal feed: a review

Environmental Chemistry Letters, Год журнала: 2023, Номер 21(3), С. 1585 - 1609

Опубликована: Янв. 20, 2023

Abstract Traditional wastewater treatment has been aimed solely at sanitation by removing contaminants, yet actual issues of climate change and depletion natural resources are calling for methods that both remove contaminants convert waste into chemicals fuels. In particular, biological treatments with synergic coupling microalgae bacteria appear promising to organic, inorganic, pathogen generate biofuels. Here, we review the use algae in valorization focus on cell-to-cell adhesion, properties, techniques harvesting production biodiesel, bioethanol, biohydrogen, exopolysaccarides, biofertilizers, animal feeds.

Язык: Английский

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LCA of municipal wastewater treatment

Chemosphere, Год журнала: 2023, Номер 341, С. 139952 - 139952

Опубликована: Авг. 23, 2023

Язык: Английский

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A review of the state-of-the-art wastewater quality characterization and measurement technologies. Is the shift to real-time monitoring nowadays feasible?

Journal of Water Process Engineering, Год журнала: 2024, Номер 60, С. 105061 - 105061

Опубликована: Март 12, 2024

Efficient characterization of wastewater stream quality is vital to ensure the safe discharge or reuse treated (WW). There are numerous parameters employed characterize water quality, some required by directives (e.g. biological oxygen demand (BOD), total nitrogen (TN), phosphates (TP)), while others used for process controls flow, temperature, pH). Well-accepted methods assess these have traditionally been laboratory-based, taking place either off-line at-line, and presenting a significant delay between sampling result. Alternative can run in-line on-line, generally being more cost-effective. Unfortunately, often not accepted when providing information regulatory bodies. The current review aims describe available laboratory-based approaches compare them with innovative real-time (RT) solutions. Transitioning from RT measurements means obtaining valuable data, avoiding time delays, possibility optimize (WW) treatment management. A variety sensor categories examined illustrate general framework in which applications replace longer conventional processes, an eye toward potential drawbacks. enhancement be achieved through employment advanced soft-sensing techniques Internet Things (IoT), coupled machine learning (ML) artificial intelligence (AI).

Язык: Английский

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Electric double layer capacitive adsorption and faradaic pseudo-capacitance behavior of ZnFe-PANI/CNT electrode for phosphate removal in capacitive deionization

Separation and Purification Technology, Год журнала: 2023, Номер 333, С. 125913 - 125913

Опубликована: Дек. 3, 2023

Язык: Английский

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Effective removal of organic and inorganic pollutants from abattoir wastewater using magnesium oxide/activated carbon nanocomposites

Ceramics International, Год журнала: 2024, Номер 50(14), С. 25933 - 25947

Опубликована: Апрель 26, 2024

Язык: Английский

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Flocculation kinetics and mechanisms of microalgae- and clay-containing suspensions in different microalgal growth phases

Water Research, Год журнала: 2022, Номер 226, С. 119300 - 119300

Опубликована: Окт. 26, 2022

Язык: Английский

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The Effect of Static Magnetic Field on Methanogenesis in the Anaerobic Digestion of Municipal Sewage Sludge

Energies, Год журнала: 2021, Номер 14(3), С. 590 - 590

Опубликована: Янв. 24, 2021

The present study aimed to determine the effect of a 17.6 mT static magnetic field (SMF) on efficiency anaerobic digestion (AD) municipal sewage sludge (MSS). SMF had significant impact methane (CH4) production efficiency, levels fermentation rate (ηFMSS) vs. removal (ηVS), and structure bacteria consortium, but it did not affect cumulative biogas production. highest CH4 yield (431 ± 22 dm3CH4/kgVS) content in (66.1% 1.9%) were found variant which exposure time was 144 min/day. This also produced ηFMSS ηVS values, reaching 73.8% 2.3% 36.9% 1.6%, respectively. Longer retention area significantly decreased AD caused reduction number methanogens community. lowest values observed for 432 min/day, only 54.8 1.9% biogas. A pronounced recorded Archaea (ARC915) Methanosaeta (MX825) populations sludge, i.e., 20% 11% 6% 2%,

Язык: Английский

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